A double-sided scraping and gluing device

Abstract

The present application relates to a double-sided scraping and gluing device, belonging to the technical field of gluing machines. It includes a frame and a driving device for driving the movement of the base fabric. Two extrusion dies are symmetrically installed on the frame. A first gluing roller and a second gluing roller are respectively arranged on the opposite sides of the two extrusion dies. Both the first gluing roller and the second gluing roller are cooling rollers. A bottom roller is arranged between the lower sides of the first gluing roller and the second gluing roller. The first gluing roller, the second gluing roller and the bottom roller are all rotatably connected to the frame. The base fabric passes through the first gluing roller, the bottom roller and the second gluing roller in sequence. A tensioning device for tensioning the base fabric is arranged on one side of the bottom roller. The present application can achieve double-sided gluing with high gluing efficiency.

Description

Technical Field

[0001] The present application relates to the field of gluing machines, and more particularly to a double-sided scraping gluing device. Background Art

[0002] Gluing machines are commonly found in the production lines of products such as cartons, leather goods, and shoes. Among them, a gluing machine is required in the last forming production line. The last is mainly used at the back heel of leather shoes to play a role in fixing and supporting. The main types of lasts are pulp lasts, chemical sheet lasts, and hot melt adhesive lasts. Among them, the hot melt adhesive last is fixed between the inner and outer layers of the shoe back heel by heating and melting. The hot melt adhesive last includes a base cloth and hot melt adhesive layers coated on both surfaces of the base cloth.

[0003] In view of the above related technologies, in the production process of hot melt adhesive lasts, in the past, the gluing machine could only achieve single-sided gluing, so it needed to be repeated twice, resulting in low efficiency. Summary of the Invention

[0004] In order to improve the gluing efficiency, the present application provides a double-sided scraping gluing device.

[0005] A double-sided scraping gluing device provided by the present application adopts the following technical solutions:

[0006] A double-sided scraping gluing device includes a frame and a driving device for driving the base cloth to move. Two extrusion dies are symmetrically installed on the frame. A first gluing roller and a second gluing roller are respectively arranged on the opposite sides of the two extrusion dies. Both the first gluing roller and the second gluing roller are cooling rollers. A bottom roller is arranged between the lower sides of the first gluing roller and the second gluing roller. The first gluing roller, the second gluing roller, and the bottom roller are all rotatably connected to the frame. The base cloth passes through the first gluing roller, the bottom roller, and the second gluing roller in sequence. A tensioning device for tensioning the base cloth is arranged on one side of the bottom roller.

[0007] By adopting the above technical solutions, the base cloth first passes through between the first gluing roller and the corresponding extrusion die from bottom to top, and the extrusion die glues one side of it. Then the base cloth passes under the bottom roller, and then passes through between the second gluing roller and the corresponding extrusion die from bottom to top, and the extrusion die glues the other side of it, realizing double-sided gluing with high gluing efficiency.

[0008] Optionally, adjusting devices are arranged on the lower sides of both the first gluing roller and the second gluing roller. The adjusting device includes an adjusting roller and roller frames installed at both ends of the adjusting roller. The upper side of the adjusting roller is for the base cloth to pass through. The roller frames and the frame are connected by adjusting bolts and adjusting nuts. The roller frames are provided with long holes for the rod parts of the adjusting bolts to pass through in the vertical direction, and the frame is provided with a plurality of through holes for the rod parts of the adjusting bolts to pass through at intervals in the horizontal direction.

[0009] By adopting the above technical solution, after loosening the adjusting bolt and the adjusting nut, the up-and-down position of the adjusting roller can be adjusted; and by inserting the adjusting bolt into the through holes at different positions, the horizontal position of the adjusting roller can be adjusted. By adjusting the position of the adjusting roller, the contact area between the base fabric and the first sizing roller and the second sizing roller can be adjusted, and thus the cooling and forming speed can be controlled according to different characteristics of the sizing material, and the sizing effect can be improved.

[0010] Optionally, a movable seat is arranged on the roller frame. The movable seat is rotatably connected to the adjusting roller. The movable seat is connected with a movable column. A fixed column is connected to the lower side of the roller frame. A transverse movement bolt arranged in the horizontal direction is rotatably penetrated through the fixed column. The transverse movement bolt is in threaded connection with the movable column. The roller frame is provided with a movable hole for the movable column to pass through and slide.

[0011] By adopting the above technical solution, after the transverse movement bolt is rotated, it can drive the movable column to slide, and then drive the adjusting roller to move horizontally, with higher precision and wider adjustment range for the horizontal adjustment.

[0012] Optionally, a fabric feeding roller located below the first sizing roller is rotatably connected to the frame. Threaded sleeves are rotatably sleeved at both ends of the fabric feeding roller. Fixing bolts are in threaded connection with the ends of the threaded sleeves. The frame is provided with kidney-shaped holes for the rod parts of the fixing bolts to pass through.

[0013] By adopting the above technical solution, the fabric feeding roller mainly plays a guiding role, enabling the base fabric to enter from below the first sizing roller. And the position of the fabric feeding roller can be adjusted horizontally, so as to adjust the entering position of the base fabric to cooperate with the adjusting device.

[0014] Optionally, the bottom roller is a cooling roller, and a guiding roller is arranged between the bottom roller and the tensioning device above.

[0015] By adopting the above technical solution, the bottom roller can accelerate the cooling and forming of the sizing material on the surface of the base fabric; the arrangement of the guiding roller can, on the one hand, improve the fitting degree between the base fabric and the bottom roller and the cooling and forming effect, and on the other hand, facilitate the tensioning device to adjust the tension of the base fabric.

[0016] Optionally, connecting frames are connected to both ends of the guiding roller. A positioning frame is connected between the connecting frame and the frame. Connecting bolts are in threaded connection with the roller shafts at both ends of the guiding roller. The connecting frame is provided with connecting holes for the rod parts of the connecting bolts to pass through in the horizontal direction. The positioning frame and the frame are connected by a positioning bolt and a positioning nut. The positioning frame is provided with positioning holes for the rod part of the positioning bolt to pass through in the vertical direction.

[0017] By adopting the above technical solution, the position of the guiding roller can be adjusted horizontally and vertically, thereby improving the scope of application.

[0018] Optionally, the tensioning device includes a fixed frame fixedly connected to the frame, a rotating shaft rotatably connected to the frame, a rotating frame fixedly connected to the rotating shaft, and a tensioning roller rotatably connected to the rotating frame. A driving cylinder is arranged between the fixed frame and the rotating frame.

[0019] By adopting the above technical solution, after presetting the pressure of the driving cylinder, the tensioning roller will have a downward pressure on the base fabric, which can achieve the tensioning effect and fluctuate with the change of the moving speed of the base fabric.

[0020] Optionally, both ends of the rotating shaft penetrate through the frame and are fixedly connected with control circular blocks. An arc-shaped block is connected to the outer side wall of the control circular block. Sensors for sensing the approach of the arc-shaped block are arranged on both the upper and lower sides of the control circular block.

[0021] By adopting the above technical solution, when the moving speed of the base fabric is fast or slow, the tensioning roller will rise or descend, causing the rotating shaft to rotate. The arc-shaped block approaches the corresponding sensor. After the sensor senses the signal, it transmits the signal to the PLC controller, and the PLC controller controls the driving device to adjust the moving speed of the base fabric.

[0022] Optionally, threaded grooves are arranged at both ends of the tensioning roller, and the directions of the two threaded grooves are opposite.

[0023] By adopting the above technical solution, when the base fabric passes through the tensioning roller, it is tensioned to both sides under the guiding action of the threaded grooves, so that the base fabric is flatter and not prone to wrinkles.

[0024] Optionally, a gravure roll is arranged above one side of the second sizing roller facing the first sizing roller. The gravure roll is a cooling roll. The driving device includes a driving seat arranged on one side of the frame, a driving motor arranged on the driving seat, a driving pulley fixedly connected to the output shaft of the driving motor, a driven pulley fixedly connected to one end of the gravure roll, and a driving belt sleeved between the driving pulley and the driven pulley.

[0025] By adopting the above technical solution, on the one hand, the gravure roll can cool and shape the sizing material on the surface of the base fabric, and on the other hand, the gravure roll can press out imprints on the surface of the base fabric, improving the friction force on the surface of the base fabric and improving the problem of relative slipping when the subsequent base fabric is cut into multiple sheets and stacked.

[0026] In addition, the driving device is arranged at the position of the gravure roll, which is also beneficial to preventing the relative slipping between the base fabric and the driving roller shaft.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The present application can achieve double-sided sizing with high sizing efficiency, and is suitable for various production lines requiring double-sided sizing, such as the production of vamp stiffeners;

[0029] 2. By setting the adjusting device, the contact area between the base fabric and the first sizing roller and the second sizing roller can be adjusted, so as to control the cooling and forming speed according to different rubber material characteristics and improve the sizing effect.

[0030] 3. By setting the tensioning device, the tension degree of the base fabric can be adjusted and the moving speed of the base fabric can be controlled.

[0031] 4. By setting the anilox roller, the problem of relative slipping when the subsequent base fabric is cut into multiple sheets and stacked can be improved. Description of the Drawings

[0032] Figure 1 is a schematic structural view of the double-sided scraping and sizing device according to the embodiment of the present application;

[0033] Figure 2 is a front view schematic of the double-sided scraping and sizing device according to the embodiment of the present application;

[0034] Figure 3 is a schematic structural view of the fabric feeding roller in the embodiment of the present application;

[0035] Figure 4 is a schematic structural view of the guide roller in the embodiment of the present application;

[0036] Figure 5 is a schematic structural view of the double-sided scraping and sizing device from another perspective according to the embodiment of the present application;

[0037] Figure 6 is Figure 5 an enlarged schematic view of area A in

[0038] Figure 7 is a schematic structural view of the adjusting device in the embodiment of the present application.

[0039] Description of reference numerals: 1. Frame; 101. Through hole; 102. Kidney-shaped hole; 2. Driving device; 21. Driving seat; 22. Driving motor; 23. Driving pulley; 24. Driven pulley; 25. Driving belt; 3. Extrusion die head; 4. First coating roller; 5. Second coating roller; 6. Bottom roller; 7. Tensioning device; 71. Fixed frame; 72. Rotating shaft; 73. Rotating frame; 74. Tensioning roller; 75. Driving cylinder; 76. Control round block; 761. Arc-shaped block; 77. Sensor; 8. Adjusting device; 81. Adjusting roller; 82. Roller frame; 821. Long strip hole; 822. Movable hole; 83. Adjusting bolt; 84. Adjusting nut; 85. Movable seat; 86. Movable column; 87. Fixed column; 88. Transverse movement bolt; 9. Fabric feeding roller; 10. Threaded sleeve; 11. Fixed bolt; 12. Guide roller; 13. Connecting frame; 131. Connecting hole; 14. Positioning frame; 141. Positioning hole; 15. Connecting bolt; 16. Positioning bolt; 17. Positioning nut; 18. Engraved roller; 19. Threaded groove. Detailed implementation manners

[0040] The following further elaborates on this application Figure 1-7 with reference to the accompanying drawings.

[0041] An embodiment of this application discloses a double-sided scraping and coating device. Referring to Figure 1 and Figure 2 , the coating device includes a frame 1. Along the moving direction of the base fabric on the frame 1, a fabric feeding roller 9, a first coating roller 4, a bottom roller 6, a guide roller 12, a tensioning device 7, a second coating roller 5, and an engraved roller 18 are sequentially arranged. One end of the engraved roller 18 is provided with a driving device 2 for driving the engraved roller 18 to rotate, thereby driving the movement of the base fabric. The first coating roller 4 and the second coating roller 5 are relatively flush and on the opposite sides, extrusion die heads 3 connected to the frame 1 are arranged. The discharging ends of the two extrusion die heads 3 are arranged opposite to each other. The extrusion die head 3 is connected to a rubber material pipe and can extrude the molten rubber material onto the surface of the base fabric. The base fabric passes through the two extrusion die heads 3 successively to achieve double-sided coating.

[0042] Referring to Figure 2 , the first coating roller 4, the bottom roller 6, the second coating roller 5, and the engraved roller 18 are all rotatably connected to the frame 1 and are all cooling rollers. A cooling roller means that cold water flowing is introduced into the inner cavity to achieve the effect of cooling the surface of the roller, which can promote the formation of a rubber surface from the rubber material.

[0043] Referring to Figure 2, the bottom roller 6 is located between the first upper glue roller 4 and the second upper glue roller 5, and the bottom roller 6 is closer to the first upper glue roller 4 than the second upper glue roller 5, so that the angle between the part of the base cloth between the first upper glue roller 4 and the bottom roller 6 and the vertical direction is 0-15 degrees. The anilox roller 18 is located above one side of the second upper glue roller 5 facing the first upper glue roller 4, and the bottom end of the anilox roller 18 is higher than the axis line of the second upper glue roller 5 and lower than the top end of the second upper glue roller 5. Through the position distribution of each cooling roller, it is beneficial to increase the contact area between the base cloth and the cooling roller and improve the forming rate.

[0044] Refer to Figure 2 , Figure 3 , the feeding roller 9 is located below the first upper glue roller 4 and on one side of the bottom roller 6. Threaded sleeves 10 are rotatably sleeved at both ends of the feeding roller 9, and fixing bolts 11 are threadedly connected to the ends of the threaded sleeves 10. The fixing bolts 11 are coaxially arranged with the threaded sleeves 10. The frame 1 is provided with kidney-shaped holes 102 for the rod parts of the fixing bolts 11 to pass through, and the length direction of the kidney-shaped holes 102 is arranged horizontally. After tightening the fixing bolts 11, the threaded sleeves 10 are relatively fixed to the frame 1; after loosening the fixing bolts 11, the threaded sleeves 10 and the feeding roller 9 can be adjusted horizontally.

[0045] Refer to Figure 2 , Figure 4 , the guiding roller 12 is located between the bottom roller 6 and the tensioning device 7 above, and connecting frames 13 are connected to both ends of the guiding roller 12. A positioning frame 14 is connected between the connecting frames 13 and the frame 1. Both the connecting frames 13 and the positioning frame 14 are L-shaped and the horizontal parts of the two overlap. A connecting hole 131 is provided through the vertical part of the connecting frame 13 in the horizontal direction, and two positioning holes 141 are provided in the vertical part of the positioning frame 14 in the vertical direction. Connecting bolts 15 are threadedly connected to both ends of the roller shaft of the guiding roller 12. The connecting bolts 15 are coaxially arranged with the guiding roller 12. The heads of the connecting bolts 15 abut against the connecting frames 13 and the rod parts pass through the connecting holes 131. Therefore, after loosening the connecting bolts 15, the guiding roller 12 can be adjusted horizontally.

[0046] Refer to Figure 4 , the positioning frame 14 is connected to the frame 1 through a positioning bolt 16 and a positioning nut 17. The head of the positioning bolt 16 abuts against the positioning frame 14, the rod part passes through the positioning hole 141 and cooperates with the positioning nut 17 to realize the fastening of the positioning frame 14. Therefore, after loosening the positioning bolt 16, the guiding roller 12 can be adjusted vertically.

[0047] Refer to Figure 2, the tensioning device 7 is located on the side of the bottom roller 6 away from the fabric feeding roller 9. The tensioning device 7 includes a fixed frame 71 fixedly connected to the machine frame 1, a rotating shaft 72 rotatably connected to the machine frame 1, a rotating frame 73 fixedly connected to the rotating shaft 72, and a tensioning roller 74 rotatably connected to the rotating frame 73. The fixed frame 71 is located on the side of the rotating shaft 72 close to the bottom roller 6, and the upper end of the fixed frame 71 is bent away from the bottom roller 6. The rotating frame 73 is arranged horizontally, and a driving cylinder 75 is arranged between the upper end of the fixed frame 71 and the middle of the rotating frame 73. The cylinder body of the driving cylinder 75 is hinged to the fixed frame 71, and the piston rod is hinged to the rotating frame 73. The tensioning roller 74 is located at one end of the rotating frame 73 away from the fixed frame 71. After presetting the pressure of the driving cylinder 75, the tensioning roller 74 will have a downward pressure on the base fabric, and the tensioning effect can be achieved.

[0048] Refer to Figure 5 , Figure 6 , both ends of the rotating shaft 72 pass through the machine frame 1 and are fixedly connected with control circular blocks 76. An arc-shaped block 761 is integrally fixedly connected to the outer side wall of the control circular block 76, and a magnet is built in the arc-shaped block 761. Sensors 77 are arranged on both the upper and lower sides of the control circular block 76. The sensors 77 are fixedly connected to the outside of the machine frame 1 through brackets. The sensors 77 are magnetic sensors 77 and can be used to sense the magnitude of magnetism. When the rotating frame 73 is horizontal, the sensors 77 are directly opposite to the control circular blocks 76. When the moving speed of the base fabric is fast or slow, the tensioning roller 74 will be raised or lowered, causing the rotating shaft 72 to rotate, and the upper end of the arc-shaped block 761 rotates to be directly opposite to the upper sensor 77 or the lower end of the arc-shaped block 761 rotates to be directly opposite to the lower sensor 77. When the sensors 77 sense a signal indicating that the moving speed of the base fabric is too fast or too slow, after feeding back the signal to the PLC controller, the PLC controller controls the driving device 2 to adjust the moving speed of the base fabric.

[0049] Refer to Figure 4 , both the tensioning roller 74 and the guiding roller 12 are rubber rollers, and thread grooves 19 are arranged on both ends of their surfaces. The directions of the thread grooves 19 at both ends are opposite, and the thread direction of the thread grooves 19 is outward. After the base fabric passes through the tensioning roller 74 and the guiding roller 12, it is subjected to the guiding action of the thread grooves 19 and has an outward thrust, thereby making the base fabric flatter and not prone to wrinkles.

[0050] Refer to Figure 5, the anilox roll 18 can emboss the outer rubber surface of the base fabric to increase the surface friction. The driving device 2 includes a driving seat 21 fixedly connected to one side of the frame 1, a driving motor 22 fixedly connected to the driving seat 21, a driving pulley 23 fixedly sleeved on the output shaft of the driving motor 22, a driven pulley 24 fixedly sleeved on one end of the anilox roll 18, and a driving belt 25 drivingly sleeved between the driving pulley 23 and the driven pulley 24. After the driving motor 22 is started, the driving pulley 23 rotates, and then drives the driven pulley 24 to rotate through the driving belt 25, thereby driving the anilox roll 18 to rotate.

[0051] Referring to Figure 7 , adjusting devices 8 are arranged on the lower sides of the first sizing roll 4 and the second sizing roll 5. The adjusting device 8 includes an adjusting roll 81. Both ends of the adjusting roll 81 are rotatably connected with movable seats 85. The movable seats 85 are connected to the frame 1 through roller frames 82. The roller frames 82 and the frame 1 are connected through adjusting bolts 83 and adjusting nuts 84. The roller frames 82 are provided with long holes 821 for the rod parts of the adjusting bolts 83 to pass through in the vertical direction. Therefore, the position of the adjusting roll 81 can be adjusted vertically.

[0052] Referring to Figure 2 , Figure 7 Three through holes 101 for the rod parts of the adjusting bolts 83 to pass through are arranged at intervals in the horizontal direction on the frame 1. Therefore, the position of the adjusting roll 81 can be adjusted horizontally.

[0053] Referring to Figure 7 , the roller frame 82 is L-shaped. The movable seat 85 is attached to the upper side of the horizontal part of the roller frame 82. The movable seat 85 is fixedly connected with a movable column 86. The roller frame 82 is provided with a movable hole 822 for the movable column 86 to pass through and slide. A fixed column 87 is fixedly connected to the lower side of the roller frame 82. The fixed column 87 is parallel to the movable column 86, and both the fixed column 87 and the movable column 86 are arranged in the vertical direction. A transverse movement bolt 88 is rotatably penetrated through the fixed column 87 in the horizontal direction. The transverse movement bolt 88 is threadedly connected with the movable column 86. After turning the transverse movement bolt 88, the movable column 86 can be driven to slide along the movable hole 822, thereby driving the adjusting roll 81 to move transversely. The accuracy of the transverse adjustment is higher and the adjustment range is wider. By adjusting the position of the adjusting roll 81, the contact areas between the base fabric and the first sizing roll 4 and the second sizing roll 5 are adjusted, which is applicable to different situations.

[0054] The implementation principle of the double-sided scraping and sizing device in the embodiment of this application is as follows:

[0055] The moving path of the base fabric is successively the lower side of the fabric feeding roller 9, between the first sizing roller 4 and the corresponding adjusting roller 81, between the first sizing roller 4 and the corresponding extrusion die head 3, the lower side of the bottom roller 6, the upper side of the guiding roller 12, the lower side of the tensioning roller 74, between the second sizing roller 5 and the corresponding adjusting roller 81, between the second sizing roller 5 and the corresponding extrusion die head 3, between the second sizing roller 5 and the gravure roller 18, and the upper side of the gravure roller 18.

[0056] The two extrusion die heads 3 apply glue on both sides of the base fabric successively, and cool and form the glue surfaces to achieve double-sided gluing.

[0057] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A double-sided scraping and gluing device, comprising a frame (1) and a driving device (2) for driving the base fabric to move, characterized in that: Two extrusion dies (3) are symmetrically mounted on the frame (1). On the opposite sides of the two extrusion dies (3), a first gluing roller (4) and a second gluing roller (5) are respectively arranged. Both the first gluing roller (4) and the second gluing roller (5) are cooling rollers. A bottom roller (6) is arranged between the lower sides of the first gluing roller (4) and the second gluing roller (5). The first gluing roller (4), the second gluing roller (5) and the bottom roller (6) are all rotatably connected to the frame (1). The base fabric passes through the first gluing roller (4), the bottom roller (6) and the second gluing roller (5) in sequence. A tensioning device (7) for tensioning the base fabric is arranged on one side of the bottom roller (6). Adjusting devices (8) are arranged on the lower sides of both the first gluing roller (4) and the second gluing roller (5). The adjusting device (8) includes an adjusting roller (81) and roller brackets (82) mounted at both ends of the adjusting roller (81). The upper side of the adjusting roller (81) is for the base fabric to pass through. The roller brackets (82) and the frame (1) are connected by adjusting bolts (83) and adjusting nuts (84). The roller brackets (82) are provided with long slots (821) for the rod parts of the adjusting bolts (83) to pass through vertically. The frame (1) is provided with a plurality of through holes (101) for the rod parts of the adjusting bolts (83) to pass through at intervals horizontally. An activity seat (85) is arranged on the roller bracket (82). The activity seat (85) is rotatably connected to the adjusting roller (81). The activity seat (85) is connected with an activity column (86). A fixed column (87) is connected to the lower side of the roller bracket (82). A horizontal translation bolt (88) arranged in the horizontal direction is rotatably penetrated through the fixed column (87). The horizontal translation bolt (88) is threadedly connected with the activity column (86). The roller bracket (82) is provided with an activity hole (822) for the activity column (86) to pass through and slide. The tensioning device (7) includes a fixed frame (71) fixedly connected to the frame (1), a rotating shaft (72) rotatably connected to the frame (1), a rotating frame (73) fixedly connected to the rotating shaft (72), and a tensioning roller (74) rotatably connected to the rotating frame (73). A driving cylinder (75) is arranged between the fixed frame (71) and the rotating frame (73). Both ends of the rotating shaft (72) penetrate out of the frame (1) and are fixedly connected with control circular blocks (76). An arc-shaped block (761) is connected to the outer side wall of the control circular block (76). Sensors (77) for sensing the approach of the arc-shaped block (761) are arranged on both the upper and lower sides of the control circular block (76).

2. The double-sided scraping and gluing device according to claim 1, wherein: The frame (1) is rotatably connected with a fabric feeding roller (9) located under the first gluing roller (4). Threaded sleeves (10) are rotatably sleeved at both ends of the fabric feeding roller (9). Fixing bolts (11) are threadedly connected to the ends of the threaded sleeves (10). The frame (1) is provided with kidney-shaped holes (102) for the rod parts of the fixing bolts (11) to pass through.

3. The double-sided scraping and gluing device according to claim 1, characterized in that: The bottom roller (6) is a cooling roller. A guiding roller (12) is arranged between the upper sides of the bottom roller (6) and the tensioning device (7).

4. The double-sided scraping and gluing device according to claim 3, characterized in that: Both ends of the guide roller (12) are connected with connecting frames (13), a positioning frame (14) is connected between the connecting frames (13) and the frame (1), both ends of the roller shaft of the guide roller (12) are threadedly connected with connecting bolts (15), the connecting frames (13) are provided with connecting holes (131) for the rod parts of the connecting bolts (15) to pass through in the horizontal direction, the positioning frame (14) and the frame (1) are connected by positioning bolts (16) and positioning nuts (17), and the positioning frame (14) is provided with positioning holes (141) for the rod parts of the positioning bolts (16) to pass through in the vertical direction.

5. A double-sided scraping and gluing device according to claim 1, characterized in that: Both ends of the tensioning roller (74) are provided with thread grooves (19) and the directions of the two thread grooves (19) are opposite.

6. The double-sided scraping and coating glue application device according to claim 1, characterized in that: A gravure roll (18) is arranged above one side of the second glue applicator roll (5) facing the first glue applicator roll (4), the gravure roll (18) is a cooling roll, the driving device (2) includes a driving seat (21) arranged on one side of the frame (1), a driving motor (22) arranged on the driving seat (21), a driving pulley (23) fixedly connected to the output shaft of the driving motor (22), a driven pulley (24) fixedly connected to one end of the gravure roll (18), and a driving belt (25) sleeved between the driving pulley (23) and the driven pulley (24).

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