A double-gluing folding adhesive device

Abstract

This invention relates to a double-gluing folding and gluing device, comprising an upper cardboard conveying module, a lower cardboard conveying module, an upper drive wheel, a lower drive wheel, a downward folding gluing device, an upward folding gluing device, a first automatic glue nozzle, a second automatic glue nozzle, a cardboard pressing and conveying module, an upper cardboard, and a lower cardboard. The key feature is that one end of the upper cardboard conveying module and one end of the lower cardboard conveying module are connected, forming an angle between them, and the projection of the upper cardboard conveying module onto the lower cardboard conveying module coincides with the projection of the lower cardboard conveying module. Compared with existing technologies, this invention has advantages such as integrated gluing and box splicing, saving length and width space, and reducing flared mouth defects.

Description

Technical Field

[0001] This invention relates to packaging machinery, and more particularly to a double-gluing folding adhesive device. Background Technology

[0002] With market development, more and more large-sized products require cardboard box packaging. However, the high cost of producing large-sized cardboard results in expensive boxes, leading to low acceptance from manufacturers. Currently, many cardboard box manufacturers use adhesive bonding to join two standard-sized pieces of cardboard together to create a larger box. This method uses standard-sized cardboard, resulting in lower production costs and a more affordable price, making it more acceptable to manufacturers. In actual production, to further improve efficiency, the splicing of cardboard is usually completed automatically at the front end of the gluing machine. The current paper feeding and splicing structure on the gluing machine consists of two sets of paper feeding sections arranged side-by-side with a certain height difference. The two sets of paper feeding sections feed paper synchronously. During the paper's movement, the glue applicator applies glue to the gluing joint of the lower layer of paper. Then, the machine's guide rails spatially overlap the gluing joints of the upper and lower layers of paper. The machine's paper alignment device then aligns the upper and lower paper edges, and the pressing device presses the gluing joints together to complete the cardboard splicing. The spliced ​​cardboard then enters the subsequent process for box gluing. Although this splicing method can achieve automatic splicing of paper during the box gluing process, there are still some problems in practical applications: a folding mechanism is required to fold the upper paper to achieve box gluing, which can easily cause flared mouth defects. In addition, splicing and box gluing are carried out in separate processes and cannot be formed in one step. The large number of machines and the large distance between them result in the entire box gluing production line being too long, resulting in wasted length space. During the splicing and gluing process, two pieces of paper are arranged side by side, and the equipment width is large, resulting in wasted width space. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects of the prior art by providing a double-mouth folding adhesive device that integrates splicing and gluing, saves length and width space, and reduces flared mouth defects.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] A double-gluing folding and gluing device includes an upper cardboard conveying module, a lower cardboard conveying module, an upper drive wheel, a lower drive wheel, a downward folding gluing device, an upward folding gluing device, a first automatic glue nozzle, a second automatic glue nozzle, a cardboard pressing and conveying module, an upper cardboard, and a lower cardboard. One end of the upper cardboard conveying module is connected to one end of the lower cardboard conveying module, and the upper and lower cardboard conveying modules form an angle between them. The projection of the upper cardboard conveying module onto the lower cardboard conveying module coincides with the projection of the lower cardboard conveying module.

[0006] The upper cardboard conveyor module is equipped with a downward folding and gluing device and a first automatic glue nozzle. The upper cardboard conveyor module includes an upper paper conveyor belt and an upper paper presser. The upper paper conveyor belt is sleeved around the upper drive wheel.

[0007] The upper cardboard has a first gluing fold line and a first gluing sheet on one side. The lower gluing folding device and the first automatic glue nozzle are located on the side of the upper cardboard conveying module that is close to the first gluing fold line and the first gluing sheet.

[0008] The lower cardboard conveyor module is equipped with an upward folding and gluing device and a second automatic glue nozzle. The lower cardboard conveyor module includes a lower paper conveyor belt and a lower paper presser. The lower paper conveyor belt is sleeved around the lower drive wheel.

[0009] The lower cardboard has a second gluing fold line and a second gluing sheet on one side. The side containing the second gluing fold line and the second gluing sheet is opposite in position to the side containing the first gluing fold line and the first gluing sheet. The upper gluing folding device and the second automatic glue nozzle are located on the side of the lower cardboard conveying module closest to the second gluing fold line and the second gluing sheet.

[0010] The cardboard pressing and conveying module includes a pressing conveyor belt and a pressing paper presser, and the paper feed end of the cardboard pressing and conveying module is provided with an elastic pressing roller.

[0011] Furthermore, the lower folding food folding device includes an upper vertical folding cylinder, an upper bottom frame, an upper vertical folding plate, an upper flat folding wheel support rod, an upper flat folding wheel, and an upper flat folding cylinder. The upper folding food folding device includes a lower vertical folding cylinder, a lower bottom frame, a lower vertical folding plate, a lower flat folding wheel support rod, a lower flat folding wheel, and a lower flat folding cylinder. The vertical folding cylinder is fixedly connected to the bottom frame of the food folding device. A vertical folding plate is movably connected to the spindle of the vertical folding cylinder. The vertical folding plate is connected to a slide rail on the bottom frame via a slider on the vertical folding plate. A flat folding cylinder is fixedly connected to the vertical folding plate. A flat folding wheel support rod is movably connected to the spindle of the flat folding cylinder. A flat folding wheel is installed on the flat folding wheel support rod. The flat folding wheel support rod is connected to a slide rail on the vertical folding plate via a slider on the flat folding plate.

[0012] Furthermore, each of the two ends of the upper cardboard conveying module and the two ends of the lower cardboard conveying module is provided with a paper alignment device. The paper alignment device includes a paper alignment drive wheel, a paper alignment belt, a paper alignment motor, a paper alignment transition wheel, and a support plate. The paper alignment motor and the paper alignment transition wheel are fixedly mounted on the support plate. The paper alignment drive wheel is fixedly mounted on the shaft end of the paper alignment motor. The paper alignment belt is sleeved outside the paper alignment drive wheel and the paper alignment transition wheel, and paper alignment blocks are provided on the paper alignment belt.

[0013] Furthermore, the paper block is 1 piece.

[0014] Furthermore, the cardboard pressing and conveying module consists of two sets.

[0015] Furthermore, the upper paper presser includes a strip-shaped steel ball seat and a steel ball, with the steel ball movably installed in the strip-shaped steel ball seat. The structure of the lower paper presser and the structure of the pressing paper presser are the same as the structure of the upper paper presser.

[0016] Furthermore, the included angle between the upper cardboard transport module and the lower cardboard transport module is 10° to 40°.

[0017] Furthermore, the included angle between the upper cardboard transport module and the lower cardboard transport module is 25°.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) By setting up an upper cardboard conveying module and an upper cardboard conveying module, as well as a downward folding glue folding device and an upward folding glue folding device on the upper cardboard conveying module and the upper cardboard conveying module respectively, the folding of glue and the gluing into box blanks can be integrated. There is no need to set up a folding mechanism for the upper cardboard, which prevents excessive resistance during folding from causing flared mouth defects.

[0020] (2) The upper and lower cardboard are transported through the upper cardboard transport module and the upper cardboard transport module. Compared with the traditional side-by-side arrangement, it saves width space. The folding and gluing of the cardboard into the box blank is integrated, which saves length space.

[0021] (3) The lower folding glue folding device and the upper folding glue folding device adopt a flat folding wheel structure to fold the root of the folding part, which strengthens the molding of the glue and makes the pressing after glue application easier and more secure, resulting in a box blank with good glue quality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a structural diagram of the paper presser of the present invention;

[0024] Figure 3 This is a structural diagram of the folding device for making up food according to the present invention;

[0025] Figure 4 This is a first structural diagram of the folding device for making down-folded food according to the present invention;

[0026] Figure 5 This is a second structural diagram of the folding device for making down-folded food according to the present invention;

[0027] Figure 6 This is a structural diagram of the paper-aligning device of the present invention;

[0028] Figure 7 This is a schematic diagram of the arrangement of the paper-aligning device of the present invention;

[0029] Figure 8 This is a schematic diagram illustrating the folding and splicing process of the upper and lower cardboard layers of the present invention, wherein... Figure 8 (a) is a diagram of the finished box blank. Figure 8 (b) is a diagram of the food page after a 180° fold. Figure 8 (c) is a diagram of the food page folded at 90°. Figure 8 (d) is a diagram of the initial state of the cardboard;

[0030] In the diagram, 1 represents the upper cardboard conveyor module, 101 the upper paper conveyor belt, 102 the upper paper presser, 1021 the strip steel ball seat, and 1022 the steel ball; 2 represents the lower cardboard conveyor module, 21 the lower paper conveyor belt, and 22 the lower paper presser; 3 represents the cardboard pressing and conveying module, 31 the pressing and conveying belt, and 32 the pressing and pressing device; 4 represents the lower folding and gluing device, 41 the upper vertical folding cylinder, 42 the upper bottom frame, 43 the upper vertical folding plate, 44 the upper flat folding wheel support rod, 45 the upper flat folding wheel, and 46 the upper flat folding cylinder. 5 Upper cardboard, 6 First automatic glue nozzle, 7 Paper alignment device, 71 Paper alignment drive wheel, 72 Paper alignment belt, 721 Paper alignment block, 73 Paper alignment motor, 74 Paper alignment transition wheel, 75 Support plate, 8 Upper drive wheel, 9 Upper folding and gluing device, 91 Lower vertical folding cylinder, 92 Lower bottom frame, 93 Lower vertical folding plate, 94 Lower flat folding wheel support rod, 95 Lower flat folding wheel, 96 Lower flat folding cylinder, 10 Lower drive wheel, 11 Second automatic glue nozzle, 12 Lower cardboard, 13 Elastic pressing wheel. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0032] A double-gluing folding adhesive device, such as Figure 1 As shown, the system includes an upper cardboard transport module 1, a lower cardboard transport module 2, an upper drive wheel 8, a lower drive wheel 10, a downward folding gluing device 4, an upward folding gluing device 9, a first automatic glue nozzle 6, a second automatic glue nozzle 11, a cardboard pressing and transport module 3, an upper cardboard 5, and a lower cardboard 12. One end of the upper cardboard transport module 1 is connected to one end of the lower cardboard transport module 2. The projection of the upper cardboard transport module 1 onto the lower cardboard transport module 2 coincides with the projection of the lower cardboard transport module 2. The number of sets of the upper cardboard transport module 1 and the lower cardboard transport module 2 are the same. The included angle between the upper cardboard transport module 1 and the lower cardboard transport module 2 is 10° to 40°.

[0033] In some embodiments, the included angle between the upper cardboard transport module 1 and the lower cardboard transport module 2 is 25°.

[0034] In some embodiments, the number of groups of the upper cardboard conveying module 1 and the lower cardboard conveying module 2 are 1, 2, or 3.

[0035] The upper cardboard conveying module 1 is equipped with a downward folding gluing device 4 and a first automatic glue nozzle 6. The upper cardboard conveying module 1 is also equipped with an upper paper conveyor belt 101 and an upper paper presser 102 to convey the upper cardboard 5. The upper paper conveyor belt 101 is sleeved outside the upper drive wheel 8. The upper cardboard 5 has a first gluing fold line 52 and a first gluing sheet 51 on one side. The downward folding gluing device 4 and the first automatic glue nozzle 6 are located on the side of the upper cardboard conveying module 1 that is close to the first gluing fold line 52 and the first gluing sheet 51. The downward folding gluing device 4 folds the first gluing sheet 51, and the first automatic glue nozzle 6 applies glue to the surface of the folded first gluing sheet 51.

[0036] The lower cardboard conveyor module 2 is equipped with an upward folding glue-sealing device 9 and a second automatic glue nozzle 11. The lower cardboard conveyor module 2 is also equipped with a lower paper conveyor belt 21 and a lower paper presser 22 to convey the lower cardboard 12. The lower paper conveyor belt 21 is sleeved outside the lower drive wheel 10. The lower cardboard 12 has a second glue-sealing fold line 122 and a second glue-sealing sheet 121 on one side. The side where the second glue-sealing fold line 122 and the second glue-sealing sheet 121 are located is opposite to the side where the first glue-sealing fold line 52 and the first glue-sealing sheet 51 are located. The upward folding glue-sealing device 9 and the second automatic glue nozzle 11 are located on the side of the lower cardboard conveyor module 2 that is close to the second glue-sealing fold line 122 and the second glue-sealing sheet 121. The upward folding glue-sealing device 9 folds the second glue-sealing sheet 121, and the second automatic glue nozzle 11 applies glue to the surface of the folded second glue-sealing sheet 121.

[0037] The cardboard pressing and conveying module 3 includes a pressing conveyor belt 31 and a pressing paper presser 32. The paper feed end of the cardboard pressing and conveying module 3 is equipped with an elastic pressing roller 13. The pressure of the elastic pressing roller 13 is adjustable. During operation, the pressure of the elastic pressing roller 13 is adjusted to a suitable value according to the thickness of the cardboard, so that the two joined ends can be squeezed during the conveying process, ensuring the firmness of the finished box.

[0038] In some embodiments, the cardboard pressing and conveying module 3 is in one, two, or three groups.

[0039] like Figure 4 and Figure 5As shown, the lower folding food folding device 4 includes an upper vertical folding cylinder 41, an upper bottom frame 42, an upper vertical folding plate 43, an upper flat folding wheel support rod 44, an upper flat folding wheel 45, and an upper flat folding cylinder 46. The upper folding food folding device 9 includes a lower vertical folding cylinder 91, a lower bottom frame 92, a lower vertical folding plate 93, a lower flat folding wheel support rod 94, a lower flat folding wheel 95, and a lower flat folding cylinder 96. The upper vertical folding cylinder 41 is fixedly connected to the upper bottom frame 42 of the lower folding food folding device 4. An upper vertical folding plate 43 is movably connected to the spindle of cylinder 41. The upper vertical folding plate 43 is connected to a slide rail on the upper bottom frame 42 via a slider on it. An upper flat folding cylinder 46 is fixedly connected to the upper vertical folding plate 43. An upper flat folding wheel support rod 44 is movably connected to the spindle of the upper flat folding cylinder 46. An upper flat folding wheel 45 is installed on the upper flat folding wheel support rod 44. The upper flat folding wheel support rod 44 is connected to a slide rail on the upper vertical folding plate 43 via a slider on it.

[0040] like Figure 3 As shown, a lower vertical folding cylinder 91 is fixedly connected to the lower bottom frame 92 of the upper folding food folding device 9. A lower vertical folding plate 93 is movably connected to the spindle of the lower vertical folding cylinder 91. The lower vertical folding plate 93 is connected to the slide rail on the lower bottom frame 92 via a slider. A lower horizontal folding cylinder 96 is fixedly connected to the lower vertical folding plate 93. A lower horizontal folding wheel support rod 94 is movably connected to the spindle of the lower horizontal folding cylinder 96. A lower horizontal folding wheel 95 is installed on the lower horizontal folding wheel support rod 94. The horizontal folding wheel support rod 94 is connected to the slide rail on the lower vertical folding plate 93 via a slider.

[0041] like Figure 8 As shown, the initial state of the upper cardboard 5 is as follows: Figure 8 As shown in (d), the down-folding gauze folding device 4 uses the first gauze fold line 52 as a reference, and drives the upper vertical folding plate 43 downward through the upper vertical folding cylinder 41. Utilizing the side of the auxiliary plate located under the upper cardboard 5, the first gauze sheet 51 is folded downwards by 90° and maintained at this downward fold. Figure 8 In state (c), the bottom surface of the auxiliary plate set under the upper cardboard 5 is used to drive the upper folding wheel support rod 44 and the upper folding wheel 45 to fold towards the first gluing fold line 52 via the upper folding cylinder 46. As the upper cardboard 5 moves, the upper folding wheel 45 rolls at the root of the fold, smoothing the 90° folded first gluing page 51, resulting in a 180° fold. Figure 8 (b) shows the first page 51 of the living room.

[0042] The initial state of the lower cardboard 12 is as follows Figure 8As shown in (d), the upper folding glue sheet folding device 9 uses the second glue sheet fold line 122 as a reference. The lower vertical folding cylinder 91 drives the lower vertical folding plate 93 upwards. Utilizing the side of the auxiliary plate provided on the lower cardboard 12, the second glue sheet 121 is folded upwards by 90° and maintained at this 90° angle. Figure 8 In state (c), the auxiliary plate on the lower cardboard 12 is used to drive the lower folding wheel support rod 94 and the lower folding wheel 95 towards the second fold line 122 via the lower folding cylinder 96. As the lower cardboard 12 moves, the root of the lower folding wheel 95 rolls, smoothing the 90° folded second fold sheet 121, resulting in a 180° fold. Figure 8 (b) shows the second page 121.

[0043] In some embodiments, the lower folding food folding device 4 and the upper folding food folding device 9 are pneumatic folding mechanisms. The pneumatic folding mechanism includes a vertical pneumatic push plate and a horizontal pneumatic push plate. The food sheet is folded 90° using the auxiliary plate and the vertical pneumatic push plate, and then the food sheet is smoothed using the horizontal pneumatic push plate to obtain a 180° folded food sheet.

[0044] like Figure 7 As shown, a paper alignment device 7 is provided at the tail ends of both sides of the upper cardboard conveying module 1 and the tail ends of both sides of the lower cardboard conveying module 2. The paper alignment device 7 aligns the cardboard after it has been glued.

[0045] Before the upper and lower cardboard heads reach the end of the upper and lower cardboard conveyor module and are about to be laminated, their respective paper alignment devices 7 straighten and align the upper and lower cardboard, and then the elastic pressing rollers 13 in the subsequent cardboard pressing and conveying module 3 compact them to form a shape as shown. Figure 8 The finished box blank shown in (a) is conveyed and held by a paper conveyor belt and steel balls and output to the subsequent work station.

[0046] like Figure 6 As shown, the paper alignment device 7 includes a paper alignment drive wheel 71, a paper alignment belt 72, a paper alignment motor 73, a paper alignment transition wheel 74, and a support plate 75. The paper alignment motor 73 and the paper alignment transition wheel 74 are fixedly mounted on the support plate 75. The paper alignment drive wheel 71 is fixedly mounted on the shaft end of the paper alignment motor 73. The paper alignment belt 72 is sleeved outside the paper alignment drive wheel 71 and the paper alignment transition wheel 74. Paper alignment blocks 721 are provided on the paper alignment belt 72.

[0047] The paper alignment device 7 controls the speed of the paper alignment belt 72 through the paper alignment motor 73. By using the blocking effect of the paper alignment block 721, it can not only perform horizontal correction of the lower paperboard 12 and the upper paperboard 5, but also correct the position of the lower paperboard 12 and the upper paperboard 5 in the transport direction to ensure that the upper and lower paperboards can be aligned.

[0048] In some embodiments, the paper block 721 may be 1, 2, or 3 blocks.

[0049] like Figure 2 As shown, the upper paper presser 102 includes a strip-shaped steel ball seat 1021 and a steel ball 1022. The steel ball is movably installed in the strip-shaped steel ball seat. The lower paper presser 22, the pressing paper presser 32 and the upper paper presser 102 have the same structure.

[0050] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A double-gluing folding and gluing device, comprising an upper cardboard conveying module (1), a lower cardboard conveying module (2), an upper drive wheel (8), a lower drive wheel (10), a downward folding gluing device (4), an upward folding gluing device (9), a first automatic glue nozzle (6), a second automatic glue nozzle (11), a cardboard pressing and conveying module (3), an upper cardboard (5), and a lower cardboard (12), characterized in that, One end of the upper cardboard transport module (1) is connected to one end of the lower cardboard transport module (2), and the upper cardboard transport module (1) and the lower cardboard transport module (2) form an angle between them. The projection of the upper cardboard transport module (1) onto the lower cardboard transport module (2) coincides with the projection of the lower cardboard transport module (2). The upper cardboard conveying module (1) is equipped with a downward folding gluing device (4) and a first automatic glue nozzle (6). The upper cardboard conveying module (1) includes an upper paper conveying belt (101) and an upper paper presser (102). The upper paper conveying belt (101) is sleeved on the upper drive wheel (8). The upper cardboard (5) has a first gluing fold line (52) and a first gluing sheet (51) on one side. The lower gluing folding device (4) and the first automatic glue nozzle (6) are located on the side of the upper cardboard conveying module (1) that is close to the first gluing fold line (52) and the first gluing sheet (51). The lower cardboard transport module (2) is equipped with an upward folding and gluing device (9) and a second automatic glue nozzle (11). The lower cardboard transport module (2) includes a lower paper conveyor belt (21) and a lower paper presser (22). The lower paper conveyor belt (21) is sleeved outside the lower drive wheel (10). The lower cardboard (12) has a second gluing fold line (122) and a second gluing sheet (121) on one side. The side containing the second gluing fold line (122) and the second gluing sheet (121) is opposite in position to the side containing the first gluing fold line (52) and the first gluing sheet (51). The upper gluing folding device (9) and the second automatic glue nozzle (11) are located on the side of the lower cardboard conveying module (2) that is close to the second gluing fold line (122) and the second gluing sheet (121). The paperboard pressing and conveying module (3) includes a pressing paper conveying belt (31) and a pressing paper presser (32). The paperboard pressing and conveying module (3) is provided with an elastic pressing roller (13) at the paper feed end. The lower folding garment folding device (4) includes an upper vertical folding cylinder (41), an upper bottom frame (42), an upper vertical folding plate (43), an upper flat folding wheel support rod (44), an upper flat folding wheel (45), and an upper flat folding cylinder (46). The upper folding garment folding device (9) includes a lower vertical folding cylinder (91), a lower bottom frame (92), a lower vertical folding plate (93), a lower flat folding wheel support rod (94), a lower flat folding wheel (95), and a lower... A flat folding cylinder (96) is fixedly connected to the bottom frame of the food folding device. A vertical folding cylinder is movably connected to the spindle of the vertical folding cylinder. The vertical folding plate is connected to the slide rail on the bottom frame through a slider on the vertical folding plate. A flat folding cylinder is fixedly connected to the vertical folding plate. A flat folding wheel support rod is movably connected to the spindle of the flat folding cylinder. A flat folding wheel is installed on the flat folding wheel support rod. The flat folding wheel support rod is connected to the slide rail on the vertical folding plate through a slider on the flat folding plate. Each of the two ends of the upper cardboard conveying module (1) and the two ends of the lower cardboard conveying module (2) is provided with a paper alignment device (7). The paper alignment device (7) includes a paper alignment drive wheel (71), a paper alignment belt (72), a paper alignment motor (73), a paper alignment transition wheel (74), and a support plate (75). The paper alignment motor (73) and the paper alignment transition wheel (74) are fixedly installed on the support plate (75). The paper alignment drive wheel (71) is fixedly installed on the shaft end of the paper alignment motor (73). The paper alignment belt (72) is sleeved outside the paper alignment drive wheel (71) and the paper alignment transition wheel (74). The paper alignment belt (72) is provided with paper alignment blocks (721).

2. The double-gluing folding adhesive device according to claim 1, characterized in that, The paper block (721) is 1 piece.

3. The double-gluing folding adhesive device according to claim 1, characterized in that, The cardboard pressing and conveying module (3) consists of two sets.

4. The double-gluing folding adhesive device according to claim 1, characterized in that, The upper paper presser (102) includes a strip-shaped steel ball seat (1021) and a steel ball (1022). The steel ball (1022) is movably installed in the strip-shaped steel ball seat (1021). The structure of the lower paper presser (22) and the structure of the pressing paper presser (32) are the same as the structure of the upper paper presser (102).

5. The double-gluing folding adhesive device according to claim 1, characterized in that, The included angle between the upper cardboard transport module (1) and the lower cardboard transport module (2) is 10° to 40°.

6. The double-gluing folding adhesive device according to claim 1, characterized in that, The included angle between the upper cardboard transport module (1) and the lower cardboard transport module (2) is 25°.

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