Leather shell sealing and sticking equipment and method for hardcover books

Abstract

The invention discloses a cover sealing and sticking device and method for hardcover books. The cover sealing and sticking device comprises a workbench, fixing plates are installed in the middle of the top face of the workbench, and a glue storage box, a glue uniformizing roller and a glue spreading roller are sequentially arranged between the front fixing plate and the rear fixing plate from top to bottom; the area adjusting assembly is arranged on the glue storage box and the first air outlet pipe, and the area adjusting assembly adjusts the position and the area of a glue outlet of the glue storage box according to the actual gluing part and the area of the leather shell; and the glue discharging control assembly is arranged on the glue uniformizing roller and the second air outlet pipe, and the glue discharging control assembly is controlled to keep the glue discharging uniformity in the process that the glue storage amount is gradually reduced. According to the cover sealing and sticking equipment and method for the hardcover books, in the using process, the gluing position and area size can be adjusted according to the specific specification of a cover, the cover sealing and sticking quality is improved, and in the process of reducing glue consumption, uniform glue discharging pressure is kept for glue discharging.

Description

Technical Field

[0001] The invention relates to the technical field related to hardcover book processing, and in particular to a cover sealing device and method for hardcover books. Background Art

[0002] The processing of hardcover books includes multiple processing steps such as flattening, creasing, die-cutting, gluing, and edging. When fixing the outer cover to the book core, the book cover needs to be glued first, and then the glued cover is sealed to the book core. Then the cover sealing equipment will be used. This equipment can ensure the firm bonding between the book cover and the book core, and improve the overall quality and aesthetics of the book.

[0003] The recycling and environmentally friendly gluing device applied to the leather shell machine disclosed in the publication number CN212759393U, when gluing the leather seal, the leather seal will be sent out from under the first glue roller by means of the transmission roller and contact and glue it under the second glue roller. At the same time, after the first glue roller is separated from the second glue roller, the glue on it rotates to the scraper plate. Because the scraper plate contacts the first glue roller under the action of the elastic member, its top edge can scrape the glue on the first glue roller, so that the glue on the first glue roller can move between the scraper plate and the baffle plate, and accumulate on the scraper plate under the obstruction of the baffle plate. During the continuous scraping process, the glue will move to the two ends of the scraper plate, and finally flow from the two ends to the glue storage barrel with the help of the slide, so as to realize the recycling and reuse of the glue on the first glue roller, avoid waste and improve the gluing quality of the leather seal;

[0004] However, the above scheme still has the following problems during use: when applying glue, the glue is directly output between the glue rollers, and the glue rollers rotate to spread the glue, and then apply it to the leather cover to be glued, but the coverage area of ​​the glue on the glue roller is not equal to the glue coating area required for the leather cover, which is not convenient for adjustment according to the actual glue coating area of ​​the leather cover, which can easily cause excessive glue to be applied to areas that do not require glue or insufficient glue coverage area, resulting in glue overflow and affecting the appearance when the book core and the leather cover are bonded, or insufficient glue coverage area and loose bonding, thereby affecting the subsequent sealing quality.

[0005] Therefore, we propose a cover sealing device and method for hardcover books to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a cover sealing device and method for hardcover books, so as to solve the problem of the existing cover sealing device for hardcover books on the market, which is proposed in the above background technology, that the glue coating area is not equal to the cover coating area, and it is not convenient to adjust according to the actual glue coating area of ​​the cover, resulting in that when the book core and the cover are bonded, the glue overflows and affects the appearance, or the glue coverage area is insufficient and the bonding is not firm, thus affecting the subsequent sealing quality.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a leather cover sealing device for hardcover books, comprising a workbench, and a controller is installed on the right side of the top of the workbench, the top of the right side of the workbench is connected to a discharge plate through a first electric push rod, and the discharge plate conflicts with the stacked leather covers, and two sections of conveyor belts are symmetrically arranged on the workbench, and the conveyor rollers of the two sections of conveyor belts are connected to the motor output end on the front side of the workbench, and fixed plates are symmetrically installed on the front and back sides of the middle of the top surface of the workbench, and a glue storage box, a glue distribution roller and a glue coating roller are arranged in sequence from top to bottom between the front and back fixed plates, and a glue coating sheet is arranged on the surface of the glue coating roller, and the position and size of the glue coating sheet are the same as the leather cover glue coating part;

[0008] It also includes: a glue coating roller, the outer side of the glue coating roller is provided with a recess for placing the glue coating sheet, and the outer side of the glue coating sheet protrudes from the surface of the glue coating roller, and the shaft of the glue coating roller is connected to the driving gear set at the output end of the motor on the front side of the fixed plate, the glue storage box is symmetrically provided with two, and the glue storage box is slidably connected to the limiting slide rail, and the limiting slide rail is fixedly installed between the front and rear fixed plates, and the top and side of the glue storage box are distributed and installed with an air pump, a first air outlet pipe and a second air outlet pipe, and at the same time, the inner bottom and outer bottom of the glue storage box are distributed and provided with a bottom liquid level sensor and a glue outlet, and the first air outlet pipe and the second air outlet pipe are both equipped with electromagnetic valves;

[0009] An area adjustment component, wherein the area adjustment component is arranged on the glue storage box and the first air outlet pipe, and the area adjustment component adjusts the glue outlet position and area of ​​the glue storage box according to the actual glue coating position and area of ​​the leather shell;

[0010] The glue discharging control component is arranged on the glue distributing roller and the second air outlet pipe, and the glue discharging control component maintains the uniformity of glue discharging during the gradual reduction of the glue stock.

[0011] Preferably, the area of ​​the notch on the glue coating roller is larger than the area of ​​the glue coating sheet, and the shaft of the glue distributing roller is connected to the output end of the motor in the middle of the front side of the fixed plate, and the glue outlet at the bottom of the glue storage box is set as an arc structure parallel to the surface of the glue distributing roller, and the two glue storage boxes are stably slidable through a limiting slide rail.

[0012] Preferably, the area adjustment component includes a second electric push rod, and the second electric push rod is installed on the inner side of the bottom of the glue storage box, and a sealing plate is fixed to the end of the second electric push rod, and the sealing plate is slidably connected to the middle part of the glue outlet, and the second electric push rod adjusts the use area of ​​the glue outlet through the sealing plate.

[0013] Preferably, a pull rope is fixed to the outside of the sealing plate, and the top of the pull rope is fixedly connected to the tooth plate, and the tooth plate is slidably connected to the inside of the side wall of the first air outlet pipe, and the first spring is directly installed between the tooth plate and the inside of the side wall of the first air outlet pipe, and the tooth plate forms a vertical sliding structure through the pull rope and the first spring.

[0014] Preferably, the outer side of the tooth plate is meshedly connected with a tooth ring, and the tooth ring is rotatably connected to the inside of the side wall of the first air outlet pipe, and the tooth ring is connected to the shaft of the circular adjustment plate, and the adjustment plate is rotatably installed inside the first air outlet pipe, and the area of ​​the adjustment plate is equal to the internal cross-sectional area of ​​the first air outlet pipe.

[0015] Preferably, the glue output control component includes an oil chamber symmetrically opened in the inner wall of the glue coating roller, and a piston frame is sealed and slidably connected in the oil chamber, and the piston frame is overall configured as a "U"-shaped structure, and a second spring is directly installed between the piston frame and the oil chamber, and at the same time, the outer side of the piston frame is in contact with the top of the glue coating sheet.

[0016] Preferably, the oil chamber is connected to the interior of the sleeve through a connecting pipe, and the sleeve is arranged inside the second air outlet pipe, and the sleeve is hinged to the right side of the top surface of the bracket, and the bottom of the bracket is connected to the inner bottom of the second air outlet pipe through a third electric push rod.

[0017] Preferably, a sliding rod is slidably connected to the sleeve via a fourth spring, and the top of the sliding rod is slidably connected to the sliding groove via a hinged slider, and the sliding groove is opened at the bottom of the rotating plate, and the rotating plate is hingedly connected to the top right end of the bracket.

[0018] Preferably, the top right side of the rotating plate is in conflict with the bottom end of the blocking rod, and the front and rear sides of the blocking rod are slidably connected to the inner wall of the second air outlet pipe through a third spring, and the internal space of the second air outlet pipe is set as a truncated cone structure, and the end of the blocking rod is set as a spherical structure.

[0019] A method for sealing and gluing a cover of a hardcover book, wherein after the controller controls the motors on the workbench and the fixed plate to start, the conveyor belt, the glue roller and the glue coating roller are driven to operate, so as to convey and glue the cover;

[0020] After the controller controls the first electric push rod, the second electric push rod and the third electric push rod to start, the leather shells will be transported and discharged, the size of the glue outlet area will be adjusted, and the pressure inside the glue storage box will be kept balanced. The first electric push rod and the third electric push rod have the same conveying distance each time.

[0021] The controller controls the opening and closing of the solenoid valve, thereby switching the use status of the first air outlet pipe and the second air outlet pipe, thereby adjusting the internal pressure of the glue storage box according to actual conditions to maintain uniform glue discharge;

[0022] The controller receives a feedback signal from the liquid level sensor, and then replenishes the glue in time after it is exhausted, while controlling the third electric push rod to recover and reset.

[0023] Compared with the prior art, the beneficial effects of the cover sealing device and method for hardcover books of the present invention are: during use, the position and area of ​​glue coating can be adjusted according to the specific specifications of the cover, the quality of cover sealing can be improved, and the glue dispensing pressure can be maintained to dispense glue uniformly while the glue consumption is reduced. The specific contents are as follows:

[0024] 1. Through the area adjustment component, the second electric push rod pushes the push plate to slide in the glue outlet, and then adjusts the size of the glue outlet according to the glue coating area of ​​the leather shell, so that the glue outlet range of the glue outlet is consistent with the glue coating range of the leather shell, thereby avoiding the problem of too large or too small glue coating area, thereby maintaining the quality of glue discharge and glue coating. When the sealing plate slides, the tooth plate is driven to move by the pull rope, and the tooth plate drives the tooth ring to rotate after moving. After the tooth ring rotates, it will drive the adjustment plate to rotate, and then when the air pump injects air into the glue storage box without changing the air volume, when the glue outlet area is changed, the flow area of ​​the first air outlet pipe needs to be adjusted accordingly, so as to keep the pressure inside the glue storage box stable, achieve uniform glue discharge, maintain the quality of sealing and gluing, make the sealed hardcover book more beautiful, and avoid the phenomenon of glue overflow or loose bonding;

[0025] 2. By setting up the control glue discharging component, when the leather shells of different specifications are coated with glue, the coating sheet with the same area as the area of ​​the leather shell that needs to be coated with glue is replaced. After the coating sheet is replaced, the second spring pushes the piston frame to slide out of the oil chamber, thereby keeping the outer side of the piston frame in contact with the top of the coating sheet. The oil inside the oil chamber is squeezed out and transported to the sleeve through the connecting pipe. The sliding rod extends to drive the slider to slide in the slide groove, thereby driving the rotating plate to rotate. The smaller the specification of the coating sheet, the larger the rotation angle of the rotating plate and the closer it is to a right angle. When the glue inside the glue storage box When the water becomes less and less, the third electric push rod evenly pushes the bracket upward. After the bracket moves upward, the beveled edge of the rotating plate contacts the blocking rod, causing the blocking rod to stretch the third spring and move at a constant speed. Each time the blocking rod moves, the air outlet area of ​​the second air outlet pipe will decrease a little. As a result, when the glue inside the glue storage box decreases with use, the space inside the glue storage box will gradually increase, and the glue discharge pressure will decrease. As the sealing rod moves, the internal pressure can be gradually increased, thereby maintaining the glue discharge pressure of the glue storage box and achieving uniform glue discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional right-view structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall three-dimensional left-view structure of the present invention;

[0028] Figure 3 This is a side view schematic diagram of the distribution structure of the glue-distributing roller, the glue-applying roller and the glue storage box of the present invention;

[0029] Figure 4 This is a bottom view structural diagram of the glue outlet and sealing plate distribution of the present invention;

[0030] Figure 5 This is a schematic diagram of the overall side section structure of the glue storage box of the present invention;

[0031] Figure 6 This is a schematic diagram of the distribution structure of the sealing plate and the adjusting piece of the present invention;

[0032] Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle;

[0033] Figure 8 It is a schematic diagram of the cross-section structure of the glue coating roller, the glue storage box and the second air outlet pipe of the present invention;

[0034] Fig. 9 It is a schematic diagram of the explosion structure of the connection part of the oil chamber, the piston rack and the glue coating roller of the present invention;

[0035] Fig.10 This is a schematic diagram of the front cross-section structure of the second air outlet pipe of the present invention;

[0036] Fig.11 For the present invention Fig.10 The enlarged structural diagram at B in the middle;

[0037] Fig.12 It is a schematic diagram of the sealing equipment control method of the present invention.

[0038] In the figure: 1, workbench; 2, controller; 3, first electric push rod; 4, discharge plate; 5, conveyor belt; 6, fixed plate; 7, glue roller; 8, glue storage box; 9, limit slide rail; 10, glue roller; 11, glue sheet; 12, driving gear set; 13, air pump; 14, first air outlet pipe; 15, second air outlet pipe; 16, liquid level sensor; 17, glue outlet; 18, area adjustment component; 1801, second electric push rod; 1802, sealing plate; 1803, pull rope ; 1804, tooth plate; 1805, first spring; 1806, tooth ring; 1807, adjusting plate; 19, glue discharging control assembly; 1901, oil chamber; 1902, piston rack; 1903, second spring; 1904, blocking rod; 1905, third spring; 1906, third electric push rod; 1907, bracket; 1908, rotating plate; 1909, sleeve; 1910, sliding rod; 1911, fourth spring; 1912, slider; 1913, slide groove. DETAILED DESCRIPTION

[0039] 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.

[0040] Embodiment 1: In order to solve the problem that the existing hardcover book cover sealing equipment is not convenient to adjust according to the actual glue coating area of ​​the cover during use, resulting in glue overflow when the book core and the cover are bonded, affecting the appearance or the glue coverage area is not enough and the bonding is not firm, thus affecting the subsequent sealing quality, the following solution is proposed, please refer to the specific Figure 1 - Figure 7 As shown,

[0041] It includes a workbench 1, and a controller 2 is installed on the right side of the top of the workbench 1. The top of the right side of the workbench 1 is connected to a discharge plate 4 through a first electric push rod 3, and the discharge plate 4 is in conflict with the stacked skins, and two sections of conveyor belts 5 are symmetrically arranged on the workbench 1, and the conveying rollers of the two sections of conveyor belts 5 are connected to the motor output end on the front side of the workbench 1. Fixed plates 6 are symmetrically installed on the front and back sides of the middle of the top surface of the workbench 1, and a glue storage box 8, a glue distribution roller 7 and a glue coating roller 10 are arranged in sequence from top to bottom between the front and back fixed plates 6, and a glue coating sheet 11 is arranged on the surface of the glue coating roller 10, and the position and size of the glue coating sheet 11 are the same as the glue coating part of the skin.

[0042] When in use, the skins to be processed are neatly stacked on the right side of the workbench 1, and the motor drives the conveyor belt 5, the glue-distributing roller 7 and the glue-coating roller 10 to rotate, and then the first electric push rod 3 drives the discharging plate 4 to move, and then the skins are pushed out one by one, and conveyed to the bottom of the glue-coating roller 10 by the conveyor belt 5 on the right side, and then conveyed away by the conveyor belt 5 on the left side after being glued by the glue-coating roller 10. In this process, the glue in the glue storage box 8 will be smeared on the glue-distributing roller 7 after being output, and then the glue-coating sheet 11 on the glue-coating roller 10 will stick the glue away, and finally the glue will be coated on the part of the skin to be glued, which is convenient to operate;

[0043] It also includes: a glue coating roller 10, a recess for placing a glue coating sheet 11 is arranged on the outer side of the glue coating roller 10, and the outer side of the glue coating sheet 11 protrudes from the surface of the glue coating roller 10, and the shaft of the glue coating roller 10 is connected to the driving gear set 12 at the output end of the motor on the front side of the fixed plate 6, two glue storage boxes 8 are symmetrically arranged, and the glue storage boxes 8 are slidably connected to the limiting slide rail 9, and the limiting slide rail 9 is fixedly installed between the front and rear fixed plates 6, and an air pump 13, a first air outlet pipe 14 and a second air outlet pipe 15 are distributed on the top and side of the glue storage box 8, and a bottom liquid level sensor 16 and a glue outlet 17 are distributed on the inner bottom and the outer bottom of the glue storage box 8, and electromagnetic valves are installed on the first air outlet pipe 14 and the second air outlet pipe 15.

[0044] When in use, the distance between the two glue storage boxes 8 can be adjusted according to the specific specifications of the leather shells. The glue storage boxes 8 slide on the limit slide rails 9, and then when glue is applied to leather shells of different sizes, the position of the glue application part is adjusted. The glue outlet 17 and the position of the glue coating sheet 11 are always distributed in a corresponding manner. The liquid level sensor 16 provided in the glue storage box 8 can facilitate the timely display of the liquid level information on the display screen of the controller 2 after the glue is used up, so that the staff can add it in time. The air pump 13 on the glue storage box 8 can be injected with air, thereby applying pressure to the glue to make it flow out from the glue outlet 17 at the bottom of the glue storage box 8. The first air outlet pipe 14 and the second air outlet pipe 15 are used to adjust the pressure inside the glue storage box 8, so as to maintain uniform glue discharge;

[0045] When adjusting the glue outlet area, please refer to Figure 1 - Figure 7 As shown, the area adjustment component 18 is arranged on the glue storage box 8 and the first air outlet pipe 14, and the area adjustment component 18 adjusts the position and area of ​​the glue outlet 17 of the glue storage box 8 according to the actual glue coating position and area of ​​the leather shell, the area of ​​the notch on the glue coating roller 10 is larger than the area of ​​the glue coating sheet 11, and the shaft of the glue distribution roller 7 is connected to the output end of the motor in the middle of the front side of the fixed plate 6, and the glue outlet 17 at the bottom of the glue storage box 8 is set to an arc structure parallel to the surface of the glue distribution roller 7, and the two glue storage boxes 8 are stably slid by the limiting slide rail 9, the area adjustment component 18 includes a second electric push rod 1801, and the second electric push rod 1801 is installed on the inner side of the bottom of the glue storage box 8, and the end of the second electric push rod 1801 is fixed with a sealing plate 1802, and the sealing plate 1802 is slidably connected to the middle of the glue outlet 17, and the second electric push rod 1801 adjusts the use area of ​​the glue outlet 17 through the sealing plate 1802.

[0046] When in use, after the second electric push rod 1801 is started, it will push the sealing plate 1802 to slide in the glue outlet 17, and then adjust the size of the glue outlet 17 according to the glue coating area of ​​the leather shell, so that the glue discharge range of the glue outlet 17 is consistent with the glue coating range of the leather shell, thereby avoiding the problem of too large or too small glue coating area, and maintaining the quality of glue discharge and glue coating;

[0047] When adjusting the gas output, please refer to Figure 1 - Figure 7 As shown, a pull rope 1803 is fixed to the outer side of the sealing plate 1802, and the top of the pull rope 1803 is fixedly connected to the tooth plate 1804, and the tooth plate 1804 is slidably connected to the inside of the side wall of the first air outlet pipe 14, and the first spring 1805 is directly installed on the tooth plate 1804 and the inside of the side wall of the first air outlet pipe 14, and the tooth plate 1804 forms a vertical sliding structure through the pull rope 1803 and the first spring 1805, and the outer side of the tooth plate 1804 is meshed with a gear ring 1806, and the gear ring 1806 is rotatably connected to the inside of the side wall of the first air outlet pipe 14, and the gear ring 1806 is connected to the shaft of the circular adjusting plate 1807, and the adjusting plate 1807 is rotatably installed inside the first air outlet pipe 14, and the area of ​​the adjusting plate 1807 is equal to the internal cross-sectional area of ​​the first air outlet pipe 14,

[0048] When in use, when the sealing plate 1802 slides, the pull rope 1803 will drive the tooth plate 1804 to move, thereby compressing the first spring 1805. After the tooth plate 1804 moves, it will drive the gear ring 1806 to rotate. After the gear ring 1806 rotates, it will drive the adjusting plate 1807 to rotate. Then, when the area of ​​the glue outlet 17 is changed while the air injection amount of the air pump 13 to the glue storage box 8 remains unchanged, the flow area of ​​the first air outlet pipe 14 needs to be adjusted accordingly, so as to keep the pressure inside the glue storage box 8 stable. At this time, the solenoid valve on the second air outlet pipe 15 is in a closed state, and the solenoid valve on the first air outlet pipe 14 is in an open state.

[0049] Embodiment 2: In order to solve the problem that the glue storage box 8 is insufficient in pressure after the glue is used during the use of the existing hardcover book cover sealing equipment, resulting in an uncertain amount of glue output and affecting the gluing quality, the following solution is proposed. Please refer to Figure 1 , Figure 3 - Figure 4 and Figure 8 - Fig.11 As shown,

[0050] The glue discharging component 19 is controlled and arranged on the glue-discharging roller 7 and the second air outlet pipe 15, and the glue discharging component 19 is controlled to maintain the uniformity of glue discharging during the gradual reduction of the glue stock. The glue discharging component 19 includes an oil cavity 1901 symmetrically opened in the inner wall of the glue coating roller 10, and a piston frame 1902 is sealed and slidably connected in the oil cavity 1901, and the piston frame 1902 is configured as a "U"-shaped structure as a whole, and the piston frame 1902 and the oil cavity 1901 are directly installed with a second spring 1903, and the outer side of the piston frame 1902 conflicts with the top of the glue coating sheet 11, and the oil cavity 1901 is connected to the top of the glue coating sheet 11. The pipe is connected to the inside of the sleeve 1909, and the sleeve 1909 is arranged inside the second air outlet pipe 15, and the sleeve 1909 is hinged to the right side of the top surface of the bracket 1907, and the bottom of the bracket 1907 is connected to the inner bottom of the second air outlet pipe 15 through the third electric push rod 1906, and the sleeve 1909 is slidably connected with a slide bar 1910 through a fourth spring 1911, and the top of the slide bar 1910 is slidably connected to the slide groove 1913 through a hinged slider 1912, and the slide groove 1913 is opened at the bottom of the rotating plate 1908, and the rotating plate 1908 is hingedly connected to the top right end of the bracket 1907.

[0051] When in use, when applying glue to leather shells of different specifications, the glue-coating sheet 11 needs to be replaced so that the area of ​​the glue-coating sheet 11 is equal to the area of ​​the leather shell where glue is required. After the glue-coating sheet 11 is replaced, the second spring 1903 will push the piston frame 1902 to slide out of the oil chamber 1901, thereby keeping the outer side of the piston frame 1902 always in a state of conflict with the top of the glue-coating sheet 11. After the piston frame 1902 slides, the oil inside the oil chamber 1901 will be squeezed out, and then transported to the inside of the sleeve 1909 through the connecting pipe, so that the slide bar 1910 is extended, and the fourth spring 1911 is stretched, thereby driving the slider 1912 to slide in the slide groove 1913, thereby driving the rotating plate 1908 to rotate. The smaller the specification of the glue-coating sheet 11, the greater the rotation angle of the rotating plate 1908.

[0052] In order to balance the pressure inside the glue storage box 8 and maintain uniform glue discharge, please refer to Figure 1 , Figure 3 - Figure 4 and Figure 8 - Fig.11 As shown, the top right side of the rotating plate 1908 is in conflict with the bottom end of the blocking rod 1904, and the front and rear sides of the blocking rod 1904 are slidably connected to the inner wall of the second air outlet pipe 15 through the third spring 1905, and the internal space of the second air outlet pipe 15 is set as a truncated cone structure, and the end of the blocking rod 1904 is set as a spherical structure.

[0053] During use, when the glue inside the glue storage box 8 becomes less and less, the third electric push rod 1906 will evenly push the bracket 1907 to move upward. After the bracket 1907 moves upward, the hypotenuse of the rotating plate 1908 will conflict with the blocking rod 1904, so that the blocking rod 1904 stretches the third spring 1905 and moves at a constant speed. Every time the blocking rod 1904 moves, the air outlet area of ​​the second air outlet pipe 15 will be reduced a little. As a result, when the glue inside the glue storage box 8 decreases with use, the space inside the glue storage box 8 will gradually increase, and the glue discharge pressure will decrease. As the sealing rod 1904 moves, the internal pressure can be gradually increased, thereby maintaining the glue discharge pressure of the glue storage box 8, thereby achieving uniform glue discharge, maintaining the quality of the sealing process, making the sealed hardcover book more beautiful, and avoiding glue overflow or loose bonding.

[0054] A method for sealing a cover of a hardcover book, please refer to Fig.12 As shown,

[0055] After the controller 2 controls the motors on the workbench 1 and the fixed plate 6 to start, it will drive the conveyor belt 5, the glue roller 7 and the glue coating roller 10 to operate, and the skins are transported and glued;

[0056] After the controller 2 controls the first electric push rod 3, the second electric push rod 1801 and the third electric push rod 1906 to start, the skin shells will be transported out, the size of the glue outlet 17 will be adjusted, and the pressure inside the glue storage box 8 will be kept balanced. The first electric push rod 3 and the third electric push rod 1906 will transport the same distance each time.

[0057] The controller 2 controls the opening and closing of the electromagnetic valve, and then switches the use state of the first air outlet pipe 14 and the second air outlet pipe 15, so as to adjust the internal pressure of the glue storage box 8 according to the actual situation to maintain uniform glue discharge;

[0058] The controller 2 receives the feedback signal of the liquid level sensor 16, and replenishes the glue in time after it is exhausted, and controls the third electric push rod 1906 to recover and reset.

[0059] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0060] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0061] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A leather cover sealing device for hardcover books, comprising a workbench (1), wherein a controller (2) is installed on the right side of the top of the workbench (1), the top of the right side of the workbench (1) is connected to a discharge plate (4) through a first electric push rod (3), and the discharge plate (4) contacts the stacked leather covers, and two sections of conveyor belts (5) are symmetrically arranged on the workbench (1), and the conveying rollers of the two sections of conveyor belts (5) are connected to the motor output end on the front side of the workbench (1), and fixed plates (6) are symmetrically installed on the front and rear sides of the middle of the top surface of the workbench (1), and a glue storage box (8), a glue distribution roller (7) and a glue coating roller (10) are arranged in sequence from top to bottom between the front and rear fixed plates (6), and a glue coating sheet (11) is arranged on the surface of the glue coating roller (10), and the position and size of the glue coating sheet (11) are the same as the leather cover glue coating part; Features: Also includes: A glue coating roller (10), wherein the outer side of the glue coating roller (10) is provided with a recess for placing a glue coating sheet (11), and the outer side of the glue coating sheet (11) protrudes from the surface of the glue coating roller (10), and the shaft of the glue coating roller (10) is connected to a driving gear set (12) at the output end of the motor on the front side of the fixed plate (6), and two glue storage boxes (8) are symmetrically arranged, and the glue storage boxes (8) are slidably connected to the limiting slide rail (9), and the limiting slide rail (9) is fixedly installed between the front and rear fixed plates (6), and an air pump (13), a first air outlet pipe (14) and a second air outlet pipe (15) are distributed on the top and side of the glue storage box (8), and a bottom liquid level sensor (16) and a glue outlet (17) are distributed on the inner bottom and outer bottom of the glue storage box (8), and electromagnetic valves are installed on the first air outlet pipe (14) and the second air outlet pipe (15); An area adjustment component (18), wherein the area adjustment component (18) is arranged on the glue storage box (8) and the first air outlet pipe (14), and the area adjustment component (18) adjusts the position and area of ​​the glue outlet (17) of the glue storage box (8) according to the actual glue coating position and area of ​​the leather shell; A glue discharging control component (19) is provided on the glue distributing roller (7) and the second air outlet pipe (15), and the glue discharging control component (19) maintains the uniformity of glue discharging during the gradual reduction of the glue stock.

2. The cover sealing device for hardcover books according to claim 1, characterized in that: The area of ​​the notch on the glue coating roller (10) is larger than the area of ​​the glue coating sheet (11), and the shaft of the glue distribution roller (7) is connected to the output end of the motor in the middle of the front side of the fixed plate (6), and the glue outlet (17) at the bottom of the glue storage box (8) is set to an arc structure parallel to the surface of the glue distribution roller (7), and the two glue storage boxes (8) slide stably through the limiting slide rail (9).

3. The cover sealing device for hardcover books according to claim 1, characterized in that: The area adjustment component (18) includes a second electric push rod (1801), and the second electric push rod (1801) is installed on the inner side of the bottom of the glue storage box (8), and a sealing plate (1802) is fixed to the end of the second electric push rod (1801), and the sealing plate (1802) is slidably connected to the middle part of the glue outlet (17), and the second electric push rod (1801) adjusts the use area of ​​the glue outlet (17) through the sealing plate (1802).

4. The cover sealing device for hardcover books according to claim 3, characterized in that: A pull rope (1803) is fixed to the outer side of the sealing plate (1802), and the top of the pull rope (1803) is fixedly connected to the tooth plate (1804), and the tooth plate (1804) is slidably connected to the inside of the side wall of the first air outlet pipe (14), and the first spring (1805) is directly installed between the tooth plate (1804) and the inside of the side wall of the first air outlet pipe (14), and at the same time, the tooth plate (1804) forms a vertical sliding structure through the pull rope (1803) and the first spring (1805).

5. The cover sealing device for hardcover books according to claim 4, characterized in that: The outer side of the tooth plate (1804) is meshingly connected with a tooth ring (1806), and the tooth ring (1806) is rotatably connected to the inside of the side wall of the first air outlet pipe (14), and the tooth ring (1806) is connected to the shaft of a circular adjustment plate (1807), and the adjustment plate (1807) is rotatably installed inside the first air outlet pipe (14), and the area of ​​the adjustment plate (1807) is equal to the internal cross-sectional area of ​​the first air outlet pipe (14).

6. The cover sealing device for hardcover books according to claim 1, characterized in that: The glue discharging control component (19) comprises an oil cavity (1901) symmetrically opened in the inner wall of the glue coating roller (10), and a piston frame (1902) is sealed and slidably connected through the oil cavity (1901), and the piston frame (1902) is configured as a "U"-shaped structure as a whole, and a second spring (1903) is directly installed between the piston frame (1902) and the oil cavity (1901), and at the same time, the outer side of the piston frame (1902) is in contact with the top of the glue coating sheet (11).

7. The cover sealing device for hardcover books according to claim 6, characterized in that: The oil chamber (1901) is connected to the interior of the sleeve (1909) through a connecting pipe, and the sleeve (1909) is arranged inside the second air outlet pipe (15), and the sleeve (1909) is hinged to the right side of the top surface of the bracket (1907), and the bottom of the bracket (1907) is connected to the inner bottom of the second air outlet pipe (15) through a third electric push rod (1906).

8. The cover sealing device for hardcover books according to claim 7, characterized in that: The sleeve (1909) is slidably connected to a slide rod (1910) via a fourth spring (1911), and the top of the slide rod (1910) is slidably connected to a slide groove (1913) via a hinged slider (1912), and the slide groove (1913) is opened at the bottom of the rotating plate (1908), and the rotating plate (1908) is hingedly connected to the top right end of the bracket (1907).

9. The cover sealing device for hardcover books according to claim 8, characterized in that: The top right side of the rotating plate (1908) is in conflict with the bottom end of the blocking rod (1904), and the front and rear sides of the blocking rod (1904) are slidably connected to the inner wall of the second air outlet pipe (15) through the third spring (1905), and the internal space of the second air outlet pipe (15) is set as a truncated cone structure, and the end of the blocking rod (1904) is set as a spherical structure.

10. A method for a cover sealing device for hardcover books, applicable to a cover sealing device for hardcover books as claimed in any one of claims 1 to 9, characterized in that: After the controller (2) controls the motors on the workbench (1) and the fixed plate (6) to start, the conveyor belt (5), the glue-distributing roller (7) and the glue-coating roller (10) are driven to operate, so as to transport and glue the husks; After the controller (2) controls the first electric push rod (3), the second electric push rod (1801) and the third electric push rod (1906) to start, the shells are conveyed and discharged, the size of the glue outlet (17) is adjusted, and the pressure inside the glue storage box (8) is kept balanced. The conveying distances of the first electric push rod (3) and the third electric push rod (1906) are equal each time. The controller (2) controls the opening and closing of the electromagnetic valve, thereby switching the use status of the first air outlet pipe (14) and the second air outlet pipe (15), thereby adjusting the internal pressure of the glue storage box (8) according to actual conditions to maintain uniform glue discharge; The controller (2) receives the feedback signal of the liquid level sensor (16), and replenishes the glue in time after it is exhausted, and controls the third electric push rod (1906) to recover and reset.

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