High-speed paper laminating machine surface paper conveying device and high-speed paper laminating machine

Abstract

This invention discloses a high-speed laminating machine face paper conveying device and a high-speed laminating machine. The face paper conveying device includes a paper conveying platform, on which a face paper conveying unit and a face paper front guide are mounted. The paper conveying platform upstream of the face paper front guide is the upstream section paper conveying platform, and the paper conveying platform downstream is the downstream section paper conveying platform. At least two parallel side-pulling positioning mechanisms are arranged at intervals along the face paper conveying direction on the upstream section paper conveying platform, and all side-pulling positioning mechanisms are located on the same side of the face paper conveying unit. According to the face paper size, one of the side-pulling positioning mechanisms is selected for use. The high-speed laminating machine includes a face paper feeding device, a face paper conveying device, a base paper feeding device, a base paper conveying device, a base paper gluing device, and a laminating device. This invention has strong versatility and can accurately side-position face papers of different sizes in the conveying direction, avoiding the phenomenon of face paper skewing, ensuring the neatness of face paper and base paper lamination, improving product yield, and reducing paper waste and production costs.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging and printing equipment, and in particular relates to a high-speed paper laminating machine surface paper conveying device and a high-speed paper laminating machine which can be used for accurate positioning of paper materials of different sizes. Background Art

[0002] Paper laminating machines are often used in the production process of cartons and paper boxes. The so-called paper laminating machines are paper processing equipment that finely laminate the surface paper (cardboard with colored patterns) and the bottom paper (corrugated paper, cardboard) printed with exquisite colored pictures and texts through gluing, positioning and lamination.

[0003] At present, most of the printing and packaging equipment at home and abroad adopts the horizontal feeding mode, that is, the longitudinal dimension along the conveying direction is smaller than the transverse dimension; therefore, according to the conventional feeding mode and the effective paper pulling capacity of the side-pulling gauge itself, the manufacturer only installs a side-pulling gauge for side positioning of the face paper at a preset position (try to ensure that it is on the same horizontal line as the center of gravity of the face paper). However, the laminating machine used for the production of cartons and paper boxes determines the longitudinal feeding (the longitudinal dimension along the conveying direction is larger than the transverse dimension) or transverse feeding according to the size of the cartons and paper boxes. Because the direction of corrugated paper can only be conveyed longitudinally and not transversely, the face paper needs to be determined whether it is fed transversely or longitudinally according to the direction of the corrugation of the corrugated paper. Therefore, the laminating machine often encounters long strips of face paper with longitudinal dimensions larger than transverse dimensions during operation. At this time, when the original tissue paper side-pulling gauge pulls the tissue paper with a larger longitudinal dimension, due to the increased distance between the center of gravity of the tissue paper and the installation position of the side-pulling gauge and the influence of the friction between the tissue paper and the conveyor belt, the tissue paper cannot be accurately positioned sideways and the tissue paper is easily pulled skewed, affecting the neatness of the subsequent mounting of the tissue paper and the base paper after gluing, thereby affecting the product yield and increasing paper waste and production costs.

[0004] In view of this, it is urgent to improve the existing technology and develop a high-speed paper laminating machine face paper conveying device and a high-speed paper laminating machine with strong versatility and capable of accurately side positioning face paper of different sizes in the conveying direction, so as to ensure the neatness of the face paper and the base paper after gluing, improve product yield, and reduce paper waste and production costs. Summary of the invention

[0005] The present invention aims to overcome the deficiencies in the above-mentioned prior art and solves the technical problem of providing a high-speed paper mounting machine face paper conveying device and a high-speed paper mounting machine, which have strong versatility and can perform precise side positioning of face paper of different sizes in the conveying direction, thereby ensuring the neatness of the face paper and the base paper after gluing, improving the product yield, and reducing paper waste and production costs.

[0006] In order to solve the technical problems existing in the above-mentioned prior art, an embodiment of the present invention provides a surface paper conveying device of a high-speed paper mounting machine, including a paper conveying platform, on which a surface paper conveying unit for conveying surface paper and a surface paper front stopper for front positioning of the conveyed surface paper are provided, the paper conveying platform upstream of the surface paper front stopper is an upstream section paper conveying platform, and the paper conveying platform downstream of the surface paper front stopper is a downstream section paper conveying platform; at least two side pull-regulating positioning mechanisms arranged in parallel are provided at intervals along the surface paper conveying direction on the upstream section paper conveying platform, and all the side pull-regulating positioning mechanisms are located on the same side of the surface paper conveying unit;

[0007] According to the size of the facial paper in the conveying direction, one of the side-pull positioning mechanisms is selected for use; the side-pull positioning mechanism is used to pull the facial paper positioned in front for side positioning.

[0008] Further, the paper conveying unit includes an upstream paper conveying mechanism disposed on the upstream paper conveying platform and a downstream paper conveying mechanism disposed on the downstream paper conveying platform;

[0009] The upstream tissue paper conveying mechanism is driven by a servo power unit. Under the drive of the servo power unit, the upstream tissue paper conveying mechanism can selectively convey the tissue paper at different speeds. The downstream tissue paper conveying mechanism is driven by a main power unit with a constant speed.

[0010] Further, the upstream tissue paper conveying mechanism comprises a first mounting frame and a first conveying belt arranged on the first mounting frame, and the first conveying belt is provided with a plurality of vacuum suction holes;

[0011] A plurality of independently working vacuum suction structures are provided on the first mounting frame at intervals along the conveying direction of the tissue paper, and the vacuum suction structures cooperate with the vacuum suction holes to adsorb and position the tissue paper on the first conveying belt;

[0012] When the side-pull positioning mechanism performs side positioning on the facial paper, the vacuum suction structure for adsorbing and positioning the facial paper stops working.

[0013] Further, the side-pull gauge positioning mechanism includes a side-pull gauge, a side-pull gauge adjustment structure and a telescopic bridge;

[0014] The side-pull gauge is slidably installed on the upstream paper feeding platform in a direction perpendicular to the surface paper conveying direction; the side-pull gauge adjustment structure is used to drive the side-pull gauge to slide for position adjustment; one end of the telescopic bridge is connected to the side-pull gauge, and the other end is connected to the upstream paper feeding platform.

[0015] Furthermore, a slide rail and slider structure is provided between the side pull gauge and the upstream paper feeding platform;

[0016] The side-pull gauge adjustment structure comprises a rotary drive member, a lead screw connected to the rotary drive member, and a nut threadedly connected to the lead screw; the side-pull gauge is fixedly connected to the nut.

[0017] Furthermore, the facial paper conveying unit further comprises a roller conveying mechanism disposed between the upstream facial paper conveying mechanism and the downstream facial paper conveying mechanism, and the roller conveying mechanism is located upstream of the facial paper front stop;

[0018] The roller conveying mechanism is used to convey the tissue paper from the upstream tissue paper conveying mechanism to the downstream tissue paper conveying mechanism.

[0019] Furthermore, the upstream paper feeding platform and the downstream paper feeding platform are respectively inclined downward along the surface paper conveying direction, and the inclination slope of the downstream paper feeding platform is greater than the inclination slope of the upstream paper feeding platform.

[0020] Further, an adjustable paper pressing wheel mechanism is slidably installed on the downstream paper feeding platform along the surface paper conveying direction; or, an adjustable paper pressing wheel mechanism is slidably installed on the upstream paper feeding platform and the downstream paper feeding platform respectively along the surface paper conveying direction;

[0021] The adjustable paper pressing wheel mechanism comprises a paper pressing wheel structure which is slidably mounted and located above the surface paper, and a position adjustment structure, wherein the position adjustment structure is used to adjust the position of the paper pressing wheel structure in the direction of conveying the surface paper.

[0022] The embodiment of the present invention further provides a high-speed paper mounting machine, comprising a surface paper feeding device, a bottom paper feeding device, a bottom paper conveying device, a bottom paper gluing device and a surface laminating device arranged on a frame; and also comprising the surface paper conveying device of the high-speed paper mounting machine;

[0023] The facing laminating device is located at the downstream intersection of the bottom paper conveying device and the surface paper conveying device of the high-speed laminating machine.

[0024] Due to the adoption of the above technical solution, the beneficial effects achieved are as follows:

[0025] The surface paper conveying device of the high-speed paper mounting machine in the present invention comprises a paper feeding table, on which a surface paper conveying unit for conveying the surface paper and a surface paper front stopper for front positioning the conveyed surface paper are arranged, the paper feeding table upstream of the surface paper front stopper is the upstream section paper feeding table, and the paper feeding table downstream of the surface paper front stopper is the downstream section paper feeding table; at least two parallel side-pull positioning mechanisms are arranged at intervals along the surface paper conveying direction on the upstream section paper feeding table, and all the side-pull positioning mechanisms are located on the same side of the surface paper conveying unit; according to the size of the surface paper in the conveying direction (longitudinal size), one of the side-pull positioning mechanisms is selected for use; the side-pull positioning mechanism is used to pull the front-positioned surface paper for side positioning. The high-speed paper mounting machine in the present invention comprises a surface paper feeding device, a surface paper conveying device of the high-speed paper mounting machine, a bottom paper feeding device, a bottom paper conveying device, a bottom paper gluing device, and a facing mounting device.

[0026] The present invention has strong versatility and can be adapted to the precise side positioning of facial papers of different sizes in the conveying direction, thereby avoiding the phenomenon of facial papers being skewed (especially long strips of facial papers whose longitudinal dimensions are larger than their transverse dimensions), ensuring the neatness of facial papers of different sizes and corresponding base papers after gluing, improving product yield, and reducing paper waste and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a surface paper conveying device of a high-speed paper mounting machine of the present invention;

[0028] Figure 2 yes Figure 1 A schematic diagram of the structure of the middle and side pull positioning mechanism;

[0029] Figure 3 yes Figure 2 Schematic diagram of the structure of the middle and side drawing gauge;

[0030] Figure 4 yes Figure 3 A cross-sectional view of

[0031] Figure 5 yes Figure 1 A cross-sectional view of

[0032] Figure 6 yes Figure 4 A magnified schematic diagram of the structure at center A;

[0033] Figure 7 yes Figure 6 A schematic diagram of the structure of the mid-upstream surface paper conveying mechanism;

[0034] Figure 8 yes Figure 5 A schematic diagram of the structure of the adjustable paper pressing wheel mechanism;

[0035] Fig. 9 yes Figure 1Schematic diagram of the structure of the middle front stopper and roller conveying mechanism;

[0036] Fig.10 This is a reference diagram of the state in which the surface paper conveying device of the high-speed paper mounting machine of the present invention conveys the first type of surface paper;

[0037] Fig.11 This is a reference diagram of the state of the surface paper conveying device of the high-speed paper mounting machine of the present invention conveying the second type of surface paper

[0038] Fig.12 It is a structural schematic diagram of the high-speed paper mounting machine of the present invention;

[0039] Fig.13 yes Fig.12 A cross-sectional view of

[0040] Fig.14 yes Fig.13 A magnified view of the structure at B in the middle;

[0041] In the figure: 1-paper feeding platform, 11-upstream paper feeding platform, 12-downstream paper feeding platform, 2-face paper conveying unit, 21-upstream face paper conveying mechanism, 211-first mounting frame, 212-first conveyor belt, 213-vacuum suction hole, 214-vacuum suction structure, 22-downstream face paper conveying mechanism, 23-servo power unit, 24-roller conveying mechanism, 3-face paper front stopper, 4-first side pull gauge positioning mechanism, 41-side pull gauge, 411-bracket, 4111-hinged ear, 412-first swing arm, 413-paper pressing roller, 414-second swing arm, 4141-roller, 4142-connecting block, 415-guide shaft, 4151-first elastic Part, 4152-second elastic part, 416-end face cam structure, 417-paper supporting roller, 418-paper supporting board, 419-paper pressing board, 42-side pulling gauge adjustment structure, 43-telescopic bridge, 44-power transmission shaft, 5-second side pulling gauge positioning mechanism, 6-adjustable paper pressing wheel mechanism, 61-paper pressing wheel structure, 611-crossbeam, 612-connecting arm, 613-mounting seat, 614-support arm, 615-roller, 616-limiting member, 62-position adjustment structure, a-face paper feeding device, b-face paper conveying device of high-speed paper mounting machine, c-bottom paper feeding device, d-bottom paper conveying device, e-bottom paper gluing device, f-covering and mounting device, g-face paper. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] In order to clearly understand the technical solution, the present invention defines the conveying direction of the facial paper as the longitudinal direction, and the direction perpendicular to the conveying direction of the facial paper as the transverse direction.

[0044] Embodiment 1:

[0045] Depend on Figures 1 to 11 As shown together, the present embodiment discloses a face paper conveying device b for a high-speed paper mounting machine; it comprises a paper feeding table 1, on which a face paper conveying unit 2 for conveying face paper g and a face paper front stopper 3 for front positioning of the conveyed face paper g are provided; the paper feeding table 1 upstream of the face paper front stopper 3 is an upstream section paper feeding table 11, and the paper feeding table 1 downstream of the face paper front stopper 3 is a downstream section paper feeding table 12; at least two side-pull positioning mechanisms arranged in parallel are provided on the upstream section paper feeding table 11 at intervals along the face paper conveying direction, and all the side-pull positioning mechanisms are located on the same side of the face paper conveying unit 2; according to the size (longitudinal size) of the face paper g in the conveying direction, one of the side-pull positioning mechanisms is selected for use; the side-pull positioning mechanism is used to pull the front-positioned face paper g for side positioning.

[0046] The upstream paper feeding platform 11 and the downstream paper feeding platform 12 are respectively inclined downward along the surface paper conveying direction, and the inclination slope of the downstream paper feeding platform 12 is greater than the inclination slope of the upstream paper feeding platform 11, so as to facilitate the intersection with the bottom paper conveyed below.

[0047] The drawings of this embodiment only show two side-pull positioning mechanisms of the same structure, namely the first side-pull positioning mechanism 4 and the second side-pull positioning mechanism 5 located upstream thereof. The second side-pull positioning mechanism 5 is used for side positioning of the face paper g with a larger longitudinal dimension (see Fig.11 ), the face paper g with a smaller longitudinal dimension is positioned sideways using the first side-pull positioning mechanism 4 (see Fig.10 ). According to the different sizes of the face paper g, the side pull positioning mechanism set at different positions is selected to effectively position the face paper g, which can effectively avoid the face paper g from being pulled obliquely; it can ensure the neatness of the face paper g and the base paper after gluing, improve the product yield, reduce paper waste and production costs. Three or more side pull positioning mechanisms are also applicable, which will not be described in detail here.

[0048] The following is a detailed description of the first side-pull gauge positioning mechanism 4. In this embodiment, the first side-pull gauge positioning mechanism 4 includes a side-pull gauge 41, a side-pull gauge adjustment structure 42 and a telescopic bridge 43, wherein the side-pull gauge 41 is installed on the upstream paper feeding platform 11 by means of a slide rail slider structure and slides in a direction perpendicular to the paper feeding direction (laterally), and the side-pull gauge adjustment structure 42 is used to drive the side-pull gauge 41 to slide for position adjustment, so as to adapt to paper g with different lateral sizes; one end of the telescopic bridge 43 is connected to the side-pull gauge 41, and the other end is connected to the upstream paper feeding platform 11, and when the side-pull gauge 41 slides laterally, the telescopic bridge 43 is adaptively extended and retracted.

[0049] In this embodiment, the side pull gauge 41 includes a bracket 411, and a first swing arm 412 and a second swing arm 414 are rotatably mounted on the hinged ear 4111 of the bracket 411, a paper pressing roller 413 (roller bearing) is rotatably mounted on the first swing arm 412, and a paper pressing paper 419 is provided on the first swing arm 412, and a first avoidance opening for the bottom of the paper pressing roller 413 to be exposed is provided on the paper pressing paper 419; a connecting block 4142 is hinged on the second swing arm 414, and a guide shaft 415 is provided on the connecting block 4142, one end of the guide shaft 415 is slidably connected to the first swing arm 412 (or, to a linear bearing installed on the first swing arm 412), a first elastic member 4151 is sleeved on the guide shaft 415, and one end of the first elastic member 4151 abuts against the first swing arm 412 (or abuts against the step surface of the inner cavity of the linear bearing), and the other One end is in abutment with the connecting block 4142; a second elastic member 4152 is provided between the second swing arm 414 and the bracket 411, and the first elastic member 4151 and the second elastic member 4152 are distributed on both sides of the rotation center of the second swing arm 414; a roller 4141 is provided on the side of the second swing arm 414 below the connecting block 4142, and an end face cam structure 416 cooperating with the roller 4141 is rotatably mounted on the bracket 411; a paper support plate 418 adapted to the paper pressing plate 419 is provided on the bracket 411, and a paper support roller 417 is rotatably mounted on the bottom of the bracket 411, and a second avoidance opening is provided on the paper support plate 418 for the top of the paper support roller 417 to be exposed, and a driving structure for driving the paper support roller 417 to rotate is also provided on the bracket 411 (not shown in the figure, it can be a cam structure or a bevel gear transmission structure). The end face cam structure 416 includes a cam lobe portion of a sleeve arranged on the end face of the sleeve, and a key connection is adopted between the sleeve and the power transmission shaft 44, so that both relative axial movement and synchronous rotation can be achieved, thereby realizing lateral adjustment and power transmission without interference.

[0050] In actual operation, the second swing arm 414 swings periodically around the hinged ear 4111 as the end face cam structure 416 (driven by the power transmission shaft 44) rotates. At the same time, under the action of the first elastic member 4151, the first swing arm 412 also swings stably and periodically. The paper pressing plate 419 and the paper pressing roller 413 on the first swing arm 412 reciprocate up and down as the first swing arm 412 swings, that is, they periodically approach and move away from the paper supporting roller 417. The driving structure drives the paper supporting roller 417 to rotate, and the rotating paper supporting roller 417 cooperates with the paper pressing roller 413 to pull the surface paper g between the paper pressing plate 419 and the paper supporting plate 418 to achieve side positioning.

[0051] In addition to the roller-type side-pull gauge disclosed above, this embodiment can also use a magnetic stripe side-pull gauge or a pneumatic side-pull gauge; any side-pull gauge 41 that can achieve side positioning of the surface paper is applicable to this embodiment; no further details are given here.

[0052] In this embodiment, the side gauge adjustment structure 42 includes a rotary drive member, a lead screw connected to the rotary drive member, and a nut threadedly connected to the lead screw; the side gauge 41 is fixedly connected to the nut. The lead screw and the nut cooperate to achieve the conversion of rotation to linear motion, thereby achieving the adjustment of the lateral position of the side gauge 41. In addition, in some embodiments, the side gauge adjustment structure 42 can be an electric push rod or an electric cylinder.

[0053] In addition, considering that the side-pull positioning mechanism is only allowed to pull a single sheet of facial paper g for side positioning at a time, in order to avoid the phenomenon of pulling multiple sheets of facial paper g at a time, the present embodiment has been further improved. The improved facial paper conveying unit 2 includes an upstream facial paper conveying mechanism 21 arranged on the upstream paper feeding platform 11 and a downstream facial paper conveying mechanism 22 arranged on the downstream paper feeding platform 12; the upstream facial paper conveying mechanism 21 is driven by a servo power unit 23, and under the drive of the servo power unit 23, the upstream facial paper conveying mechanism 21 can choose to convey the facial paper g at different speeds; according to the size of the facial paper g along the conveying direction, a suitable conveying speed can be selected to adjust the spacing or overlapping distance between two adjacent facial papers g to avoid the phenomenon of pulling multiple sheets of facial paper g at a time; for example, when the speed is slowed down to a certain extent, fish-scale paper feeding can be realized, that is, two adjacent facial papers g overlap and the overlapping distance can be adjusted; when the speed is fastened to a certain extent, cross-flow paper feeding can be realized; when the speed is moderate, non-interval paper feeding can be realized. The downstream paper conveying mechanism 22 is driven by a main power unit with a constant speed (ie, the main power unit of the high-speed paper laminating machine), and at this time, paper is conveyed in a jump-flow manner or without intervals, thereby improving the conveying efficiency.

[0054] In this embodiment, the upstream tissue paper conveying mechanism 21 includes a first mounting frame 211, a main transmission roller and at least one driven roller rotatably mounted on the first mounting frame 211, and a first conveying belt 212 wound around the driving roller and the driven roller, and a plurality of vacuum suction holes 213 are provided on the first conveying belt 212. Considering that when the side-pull positioning mechanism pulls the tissue paper g, it is necessary to release the adsorption and positioning of the tissue paper g on the upstream tissue paper conveying mechanism 21, a plurality of vacuum suction structures 214 that work independently and are closed and do not interfere with each other are arranged at intervals along the tissue paper conveying direction, and the vacuum suction structure 214 includes a suction box and an independently working suction motor arranged in the suction box. The vacuum suction structure 214 cooperates with the vacuum suction hole 213 and is used to adsorb and position the tissue paper g on the first conveying belt 212; when the side-pull positioning mechanism performs side positioning on the tissue paper g, the vacuum suction structure 214 used for adsorbing and positioning the tissue paper g stops working, that is, the vacuum suction structure 214 adjacent to the side-pull positioning mechanism currently in use stops working. The downstream paper conveying mechanism 22 may preferably be an existing mechanism, which will not be described in detail here.

[0055] In this embodiment, the facial paper conveying unit 2 also includes a roller conveying mechanism 24 arranged between the upstream facial paper conveying mechanism 21 and the downstream facial paper conveying mechanism 22, and the roller conveying mechanism 24 is located upstream of the facial paper front stop 3; the roller conveying mechanism 24 is used to convey the facial paper g from the upstream facial paper conveying mechanism 21 to the downstream facial paper conveying mechanism 22, playing a role of transitional conveyance; when the facial paper front stop 3 performs front positioning, the roller conveying mechanism 24 suspends conveying; wherein, the structure of the roller conveying mechanism 24 is the same as the existing structure, including an active pressure roller and a driven roller, and the two cooperate with each other to realize the conveyance of the facial paper g, which will not be repeated here.

[0056] In this embodiment, an adjustable paper pressing roller mechanism 6 is slidably mounted on the upstream paper feeding platform 11 and the downstream paper feeding platform 12 respectively along the surface paper conveying direction; the adjustable paper pressing roller mechanism 6 can vertically position the surface paper g to prevent it from tilting. In some other embodiments, the adjustable paper pressing roller mechanism 6 is slidably mounted only on the downstream paper feeding platform 12 along the surface paper conveying direction.

[0057] The adjustable paper pressing wheel mechanism 6 includes a paper pressing wheel structure 61 which is slidably installed and located above the paper g, and a position adjustment structure 62, wherein the position adjustment structure 62 is used to adjust the position of the paper pressing wheel structure 61 in the paper conveying direction. The position adjustment structure 62 in this embodiment is preferably a gear rack adjustment structure. The paper pressing wheel structure 61 includes a crossbeam 611 connected to the adjustment component of the position adjustment structure 62 and two paper pressing wheel assemblies which are laterally spaced and arranged on the crossbeam 611; the paper pressing wheel assembly includes a connecting arm 612, at least one mounting seat 613 is provided at each end of the connecting arm 612, a support arm 614 is hinged on the mounting seat 613, a roller 615 is rotatably installed on the support arm 614, and a limiting member 616 for limiting the support arm 614 is also provided on the connecting arm 612, and the limiting member 616 and the roller 615 are located on both sides of the hinge of the support arm 614.

[0058] Embodiment 2:

[0059] Depend on Fig.11 , Figure 12 to Figure 14 As shown together, the present embodiment discloses a high-speed paper mounting machine, comprising a surface paper feeding device a (preferably a feeder device) arranged on a frame, a surface paper conveying device b of the high-speed paper mounting machine disclosed in Embodiment 1, a bottom paper feeding device c, a bottom paper conveying device d, a bottom paper gluing device e and a facing mounting device f (also referred to as a pressing device); the facing mounting device f is located at the downstream intersection of the bottom paper conveying device e and the surface paper conveying device b of the high-speed paper mounting machine.

[0060] According to the longitudinal size of the facial paper g, one of the side-pull positioning mechanisms is selected for use (the other one adjusts its lateral position to be away from the facial paper g, and the facial paper g cannot be pulled, and is not used by default; or, the other side-pull positioning mechanism is directly not used), and the conveying speed of the upstream facial paper conveying mechanism 21 is adjusted at the same time to avoid excessive overlap of two adjacent facial papers g, which will cause the problem of pulling the two sheets of g at the same time; the facial paper feeding device a transfers the facial paper g to the upstream facial paper conveying mechanism 21 in the facial paper conveying device b of the high-speed paper mounting machine one by one, and the upstream facial paper conveying mechanism 21 performs fish-scale paper feeding. When the front end facial paper g is conveyed to the facial paper front stop 3, the facial paper front stop 3 is actuated (the roller-type conveying mechanism 24 suspends conveying), blocking the facial paper g from moving forward to position it forward. After the front positioning, the side-pull positioning mechanism selected for use is actuated to pull the facial paper g to effectively position it laterally; after the positioning is completed, it enters the downstream facial paper conveying mechanism 22 under the transition conveyance of the roller-type conveying mechanism 24.

[0061] At this time, the bottom paper feeding device c has transferred the bottom paper one by one to the bottom paper conveying device d, and conveyed the bottom paper at the same conveying speed as the downstream surface paper conveying mechanism 22; when the bottom paper moves to the bottom paper gluing device e (mainly including a glue bin and a gluing roller), it is glued. Subsequently, the surface paper g and the glued bottom paper enter the overlaying device f at the same time, and the overlaying device f laminates the surface paper g and the bottom paper.

[0062] Since the selected side-pull positioning mechanism is compatible with the face paper g of the current size, the phenomenon of the face paper g being pulled slant can be effectively avoided, thereby ensuring the neatness of the covering and mounting, improving the yield of the mounted products, and reducing paper waste and production costs.

[0063] It should be noted that in order to further achieve neat mounting, according to the design concept and specific implementation structure of Example 1, multiple side pulling positioning devices can be arranged at intervals along the bottom paper conveying direction on the bottom paper conveying device d to adapt to the side positioning of bottom papers of different sizes. Therefore, the corresponding improvements made on the bottom paper conveying device d should also be within the protection scope of the present invention.

[0064] In summary, the present invention has strong versatility and can be adapted to the precise side positioning of face papers of different sizes in the conveying direction, thereby avoiding the phenomenon of face paper being skewed, ensuring the neatness of the face paper and the base paper of the corresponding size after gluing, improving product yield, and reducing paper waste and production costs.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A paper conveying device for a high-speed paper mounting machine, comprising a paper conveying platform, on which a paper conveying unit for conveying paper and a paper front stopper for front positioning the conveyed paper are provided, the paper conveying platform upstream of the paper front stopper is an upstream section paper conveying platform, and the paper conveying platform downstream of the paper front stopper is a downstream section paper conveying platform; characterized in that: At least two parallel side-pull positioning mechanisms are provided on the upstream paper feeding platform along the surface paper feeding direction, and all the side-pull positioning mechanisms are located on the same side of the surface paper feeding unit; According to the size of the face paper in the conveying direction, one of the side-pull positioning mechanisms is selected for use; the side-pull positioning mechanism is used to pull the face paper positioned in front for side positioning; The paper conveying unit includes an upstream paper conveying mechanism disposed on the upstream paper conveying platform and a downstream paper conveying mechanism disposed on the downstream paper conveying platform; The upstream tissue paper conveying mechanism is driven by a servo power unit. Under the drive of the servo power unit, the upstream tissue paper conveying mechanism can selectively convey the tissue paper at different speeds; the downstream tissue paper conveying mechanism is driven by a main power unit with a constant speed; The upstream paper feeding platform and the downstream paper feeding platform are respectively inclined downward along the surface paper conveying direction, and the inclination slope of the downstream paper feeding platform is greater than the inclination slope of the upstream paper feeding platform.

2. The surface paper conveying device of the high-speed paper laminating machine according to claim 1, characterized in that: The upstream surface paper conveying mechanism comprises a first mounting frame and a first conveying belt arranged on the first mounting frame, and the first conveying belt is provided with a plurality of vacuum suction holes; A plurality of independently working vacuum suction structures are provided on the first mounting frame at intervals along the conveying direction of the tissue paper, and the vacuum suction structures cooperate with the vacuum suction holes to adsorb and position the tissue paper on the first conveying belt; When the side-pull positioning mechanism performs side positioning on the facial paper, the vacuum suction structure for adsorbing and positioning the facial paper stops working.

3. The surface paper conveying device of the high-speed paper laminating machine according to claim 1, characterized in that: The side-pull gauge positioning mechanism includes a side-pull gauge, a side-pull gauge adjustment structure and a telescopic bridge; The side pull gauge is slidably mounted on the upstream paper feeding table in a direction perpendicular to the surface paper feeding direction; The side pull gauge adjustment structure is used to drive the side pull gauge to slide for position adjustment; one end of the telescopic bridge is connected to the side pull gauge, and the other end is connected to the upstream paper feeding platform.

4. The surface paper conveying device of the high-speed paper laminating machine according to claim 3, characterized in that: A slide rail and slider structure is provided between the side pull gauge and the upstream paper feeding platform; The side pull gauge adjustment structure includes a rotary drive member, a lead screw connected to the rotary drive member, and a nut threadedly connected to the lead screw; The side pull gauge is fixedly connected to the nut.

5. The surface paper conveying device of the high-speed paper laminating machine according to claim 1, characterized in that: The facial paper conveying unit further comprises a roller conveying mechanism disposed between the upstream facial paper conveying mechanism and the downstream facial paper conveying mechanism, and the roller conveying mechanism is located upstream of the facial paper front stop; The roller conveying mechanism is used to convey the tissue paper from the upstream tissue paper conveying mechanism to the downstream tissue paper conveying mechanism.

6. The surface paper conveying device of the high-speed paper laminating machine according to claim 1, characterized in that: An adjustable paper pressing wheel mechanism is slidably mounted on the downstream paper feeding platform along the surface paper conveying direction; or, an adjustable paper pressing wheel mechanism is slidably mounted on the upstream paper feeding platform and the downstream paper feeding platform respectively along the surface paper conveying direction; The adjustable paper pressing wheel mechanism comprises a paper pressing wheel structure which is slidably mounted and located above the surface paper, and a position adjustment structure, wherein the position adjustment structure is used to adjust the position of the paper pressing wheel structure in the direction of conveying the surface paper.

7. A high-speed paper mounting machine, comprising a surface paper feeding device, a bottom paper feeding device, a bottom paper conveying device, a bottom paper gluing device and a facing mounting device arranged on a frame; characterized in that: It also includes the surface paper conveying device of the high-speed paper mounting machine according to any one of claims 1 to 6; The facing laminating device is located at the downstream intersection of the bottom paper conveying device and the surface paper conveying device of the high-speed laminating machine.

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