A winding and pressing device and printed product inspection machine

Abstract

The present invention discloses a winding and pressing device and a printed product inspection machine; the devices include: a second fixed plate; a rotatable winding roller is arranged on the front side of the second fixed plate; a detachable first paper tube is arranged on the outer circumference of the winding roller; an inspected packaging bag that is tightly fitted with the paper tube is arranged on the outer circumference of the first paper tube; a connecting rod is arranged above the winding roller; a driving device that can move forward and backward is installed between the connecting rod and the second fixed plate; the connecting rod is slidably connected to the driving device up and down; a group of clamping structures are rotatably arranged at both ends of the connecting rod; a pressure roller is rotatably arranged between the two groups of the clamping structures; the pressure roller abuts against the inspected packaging bag.

Description

Technical Field

[0001] The invention relates to the field of product inspection machines, and in particular to a winding and pressing device and a printed product inspection machine. Background Art

[0002] The inspection machine is used to inspect defects of web materials (film, paper and aluminum foil) after printing and coating. It can also be used to rewind the materials to make the end surface of the web neat and the tightness appropriate. It is an indispensable equipment in the printing industry, especially the flexible packaging printing industry.

[0003] A printed product inspection machine disclosed in application number CN201711082475.X specifically comprises: a universal hinge joint is used to keep the arc plate concentric with the tightening roller at all times, so that the roller is always in contact with the tightening roller. The use of the universal hinge joint may cause the roller to deviate to one side of the tightening roller during the vibration of the inspection machine, making the contact force of the roller on the tightening roller uneven, thereby causing the packaging bag wrapped on the paper tube to be partially not compacted. Summary of the invention

[0004] In order to solve the problems existing in the background technology, the present invention provides a winding and pressing device and a printed product inspection machine.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A winding and pressing device, comprising:

[0007] A second fixing plate, wherein the second fixing plate is placed in a vertical direction;

[0008] A winding roller, the winding roller is an air-expanding shaft; the winding roller is rotatably arranged on the front side of the second fixed plate, and the axis of the winding roller is perpendicular to the second fixed plate;

[0009] A second paper tube, wherein the second paper tube and the outer circumferential surface of the winding roller are detachably arranged; the outer circumferential surface of the second paper tube is wound with a detected portion of the packaging bag that is tightly fitted with the second paper tube;

[0010] A connecting rod, wherein the connecting rod is arranged above the winding roller, and the axis of the connecting rod is parallel to the axis of the winding roller;

[0011] A buffer device, the buffer device is installed between the connecting rod and the second fixing plate, and the connecting rod is slidably connected to the buffer device up and down;

[0012] A driving device, wherein the driving device drives the connecting rod to move forward and backward;

[0013] A clamping structure, wherein the clamping structure is provided in two groups, and each group of the clamping structure comprises two rotating rods; the rotating rod is composed of a support rod and a circular ring, the circular ring is fixed at one end of the support rod, and the circular ring is rotatably connected to the connecting rod;

[0014] The two rotating rods in the clamping structure are respectively located on two sides of the winding roller;

[0015] A pressure roller is respectively arranged on both sides of the axis of the winding roller; the axis of the pressure roller is parallel to the axis of the winding roller; the two ends of the pressure roller are respectively rotatably connected to the rotating rod on the same side of the axis of the winding roller; the pressure roller abuts against the detected part of the packaging bag;

[0016] The pressure roller is an inflatable elastic cylindrical structure; a cavity is arranged inside the pressure roller; a through hole is opened on the end of the support rod away from the circular ring; the through hole is connected to the cavity;

[0017] The clamping structure further comprises a first spring, which is arranged between the two rotating rods in the same group and is used for the two rotating rods in the same group to be close to each other;

[0018] A double-headed cylinder is arranged between the two rotating rods in the same group and connected to the rotating rods through a bracket, and the telescopic end of the double-headed cylinder is hinged to the bracket;

[0019] An air pipe, the air pipe is located between the double-headed cylinder and the pressing roller, one end of the air pipe passes through the through hole in the support rod and is connected to the internal cavity of the pressing roller;

[0020] Gas nozzles, respectively located at positions of the double-headed cylinders near the telescopic ends, and the gas nozzles of the double-headed cylinders are connected to the air pipes;

[0021] As the packaging bag is wound around the outer circumference of the second paper roll that is tightly fitted with the winding roller, the pressure rollers move away from each other, and the movement of the pressure rollers drives the rotating rods to rotate along the connecting rod; the two rotating rods at the same end of the connecting rod rotate to stretch the first spring, and at the same time make the two cylinder joints of the double-headed cylinder move away from each other; the moving cylinder joints press the gas inside the double-headed cylinder into the pressure roller through the air pipe, and the volume of the pressure roller increases.

[0022] Furthermore, the buffer device comprises a guide sleeve; the guide sleeve is fixed on the connecting rod, and a second spring and a guide block abutting against the second spring are arranged inside the guide sleeve;

[0023] A guide rod, the guide rod is fixedly connected to the guide block to facilitate the guide block to slide in the guide sleeve;

[0024] A limiting ring is fixed on the upper end surface of the guide sleeve to prevent the guide block from separating from the guide sleeve during movement; the limiting ring is coaxial with the guide rod.

[0025] Furthermore, the driving device includes a mounting frame; the mounting frame is arranged on one side of the winding roller, and the mounting frame is fixedly connected to the second fixing plate;

[0026] A through slot, the through slot being provided on the mounting frame; a lead screw being arranged inside the through slot; the axis of the lead screw being parallel to the axis of the winding roller; the lead screw being rotatably matched with the mounting frame;

[0027] A guide plate, the guide plate is arranged inside the through slot of the mounting frame; the guide plate is threadedly matched with the lead screw; the guide plate is slidably matched with the through slot;

[0028] A connecting plate, one end of which is fixedly connected to the upper surface of the guide plate, and the other end of which is fixedly connected to the guide rod.

[0029] Furthermore, a reinforcing rib is provided between the mounting frame and the second fixing plate; the reinforcing rib is a right-angled triangle block, one right-angled surface of the reinforcing rib is fixed to the lower surface of the mounting frame, and the other right-angled surface of the reinforcing rib is fixedly connected to the second fixing plate.

[0030] Furthermore, a motor is fixedly mounted on a side of the second fixed plate away from the winding roller, and the motor is rotatably arranged with the winding roller.

[0031] The present invention also provides a printed product inspection machine, comprising: the winding and pressing device;

[0032] It also includes a detection device, the left side of which is fixedly connected to a first fixed plate; the other side of the detection device is fixedly connected to a second fixed plate in the winding and pressing device; the detection device is between the first fixed plate and the second fixed plate;

[0033] The feed roller is an inflatable shaft, which is rotatably arranged on the side of the first fixed plate; a detachable first paper tube is arranged on the circumferential surface of the feed roller; and the undetected part of the packaging bag is fixedly wrapped around the first paper tube.

[0034] Compared with the prior art, the present invention has the following beneficial effects: as the diameter of the inspected packaging bag becomes larger and larger, the distance between the two rotating rods at the same end of the connecting rod becomes larger, and the rotation of the rotating rod drives the double-headed cylinder joint to move outward, and the moving double-headed cylinder joint presses the gas in the double-headed cylinder into the pressure roller, so that the volume of the pressure roller becomes larger, and the enlarged pressure roller fits more closely with the inspected packaging bag, which is more conducive to contact with the inspected packaging bag, making the structure of the inspected packaging bag tighter; the axis of the guide sleeve is always projected onto the center of the axis of the inspected packaging bag, ensuring that the pressure of the pressure roller on each part of the rolled inspected packaging bag is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the printed product inspection machine of the present invention;

[0036] Figure 2 It is a schematic top view of the structure of the winding and pressing device of the present invention;

[0037] Figure 3 It is a front view schematic diagram of the winding and pressing device structure of the present invention;

[0038] Figure 4 The present invention Figure 3 The enlarged schematic diagram at A in the middle;

[0039] Figure 5 The present invention Figure 3 The enlarged schematic diagram of point B in the middle;

[0040] Figure 6 It is a cross-sectional schematic diagram of the cylinder state of the present invention;

[0041] Figure 7 It is a schematic diagram of the support structure of the present invention;

[0042] Figure 8 It is a schematic diagram of a rotating rod of the present invention.

[0043] In the figure: 1. feed roller; 2. first paper tube; 3. packaging bag; 4. first fixed plate; 5. detection device; 6. second fixed plate; 7. through slot; 8. winding roller; 9. air pipe; 10. rotating rod; 11. bracket; 12. double-headed cylinder; 13. first spring; 14. pressure roller; 15. connecting rod; 16. second paper tube; 17. guide sleeve; 18. guide rod; 19. connecting plate; 20. motor; 21. guide plate; 22. mounting frame; 23. lead screw; 24. reinforcing rib; 25. limit ring; 26. second spring; 27. guide block; 28. support rod; 29. ​​circular ring. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0045] See also Figure 2-Figure 8 , a winding and pressing device, comprising:

[0046] A second fixing plate 6, the second fixing plate 6 is placed in a vertical direction;

[0047] The winding roller 8 is an air-expanding shaft; the winding roller 8 is rotatably arranged on the front side of the second fixed plate 6, and the axis of the winding roller 8 is perpendicular to the second fixed plate 6;

[0048] The second paper tube 16 is detachably arranged with respect to the outer circumference of the winding roller 8; the outer circumference of the second paper tube 16 is wound with the detected part of the packaging bag 3 which is closely fitted with the second paper tube 16;

[0049] A connecting rod 15, wherein the connecting rod 15 is arranged above the winding roller 8, and the axis of the connecting rod 15 is parallel to the axis of the winding roller 8;

[0050] A buffer device, which is installed between the connecting rod 15 and the second fixing plate 6, and the connecting rod 15 is slidably connected to the buffer device up and down;

[0051] A driving device, wherein the driving device drives the connecting rod 15 to move forward and backward;

[0052] Clamping structure; there are two groups of clamping structures, each group of clamping structures includes two rotating rods 10. The two groups of clamping structures are respectively arranged at the two ends of the connecting rod 15; the rotating rod 10 and the connecting rod 15 are rotatably arranged; the two rotating rods 10 in the clamping structure are respectively located on both sides of the winding roller 8; a pressing roller 14 is respectively arranged on both sides of the axis of the winding roller 8; the axis of the pressing roller 14 is parallel to the axis of the winding roller 8; the two ends of the pressing roller 14 are respectively rotatably connected to the rotating rod 10 on the same side of the axis of the winding roller 8; the pressing roller 14 abuts against the detected part of the packaging bag 3.

[0053] The clamping structure further includes a first spring 13, which is disposed between the two rotating rods 10 in the same group and is used to bring the two rotating rods 10 in the same group closer to each other.

[0054] The double-headed cylinder 12 is disposed between two rotating rods 10 in the same group and is connected to the rotating rods 10 via a bracket 11 . The telescopic end of the double-headed cylinder 12 is hinged to the bracket 11 .

[0055] The rotating rod 10 is composed of a supporting rod 28 and a ring 29 . The ring 29 is fixed to one end of the supporting rod 28 , and the ring 29 is rotatably connected to the connecting rod 15 .

[0056] The clamping structure further includes a pressure roller 14; the pressure roller 14 is an inflatable elastic cylindrical structure; a cavity is arranged inside the pressure roller 14; a through hole is opened on one end of the support rod 28 away from the ring 29; the through hole is connected to the cavity;

[0057] The air pipe 9 is located between the double-headed cylinder 12 and the pressing roller 14, and one end of the air pipe 9 passes through the through hole in the support rod 28 and communicates with the internal cavity of the pressing roller 14;

[0058] The air nozzles are respectively located at positions of the double-headed cylinder 12 close to the telescopic ends, and the air nozzles of the double-headed cylinder 12 are connected to the air pipe 9.

[0059] The buffer device comprises a guide sleeve 17 ; the guide sleeve 17 is fixed on the connecting rod 15 , and a second spring 26 and a guide block 27 abutting against the second spring 26 are arranged inside the guide sleeve 17 .

[0060] A guide rod 18, wherein the guide rod 18 is fixedly connected to the guide block 27 to facilitate the guide block 27 to slide in the guide sleeve 17;

[0061] The limiting ring 25 is fixed to the upper end surface of the guide sleeve 17 to prevent the guide block 27 from being separated from the guide sleeve 17 during movement; the limiting ring 25 is coaxial with the guide rod 18.

[0062] The driving device includes a mounting frame 22; the mounting frame 22 is arranged on one side of the winding roller 8, and the mounting frame 22 is fixedly connected to the second fixing plate 6;

[0063] A through slot 7, wherein the through slot 7 is provided on the mounting frame 22; a lead screw 23 is provided inside the through slot 7; the axis of the lead screw 23 is parallel to the axis of the winding roller 8; the lead screw 23 is rotatably matched with the mounting frame 22;

[0064] The guide plate 21 is arranged inside the through slot 7 of the mounting frame 22; the guide plate 21 is threadedly matched with the lead screw 23; the guide plate 21 is slidably matched with the through slot 7;

[0065] A connecting plate 19 , one end of which is fixedly connected to the upper surface of the guide plate 21 , and the other end of which is fixedly connected to the guide rod 18 .

[0066] A reinforcing rib 24 is provided between the mounting frame 22 and the second fixing plate 6 ; the reinforcing rib 24 is a right-angled triangle block, one right-angled surface of the reinforcing rib 24 is fixed to the lower surface of the mounting frame 22 , and the other right-angled surface of the reinforcing rib 24 is fixedly connected to the second fixing plate 6 .

[0067] A motor 20 is fixedly mounted on a side of the second fixed plate 6 away from the winding roller 8 , and the motor 20 and the winding roller 8 are rotatably arranged.

[0068] See also Figure 1 A printed product inspection machine comprises: the above-mentioned winding and pressing device; and also comprises a detection device 5. The detection device 5 is between the first fixed plate 4 and the second fixed plate 6; the left side of the detection device 5 is fixedly connected to the first fixed plate 4; the other side of the detection device 5 is fixedly connected to the second fixed plate 6 in the winding and pressing device;

[0069] The feed roller 1 is an air-expanding shaft, rotatably arranged on the side of the first fixed plate 4; a detachable first paper tube 2 is arranged on the circumferential surface of the feed roller 1; and the undetected part of the packaging bag 3 is fixedly wrapped around the first paper tube 2.

[0070] In summary, the present invention relates to a winding and pressing device and a printed product inspection machine.

[0071] First, put the part of the packaging bag 3 to be inspected that is wrapped around the first paper tube 2 on the feed roller 1, and then inflate the feed roller 1 so that the feed roller 1 and the first paper tube 2 fit tightly together. Put the second paper tube 16 into the outer circumference of the winding roller 8, adjust the position of the second paper tube 16 so that the axes of the first paper tube 2 and the second paper tube 16 are in the same plane, and then inflate the winding roller 8 so that the outer circumference of the winding roller 8 and the inner circumference of the second paper tube 16 fit tightly together. Pass one end of the part of the packaging bag 3 to be inspected through the detection device 5 and wrap it around the outer circumference of the second paper tube 16 that fits tightly with the winding roller 8, and at the same time lift the connecting rod 15, and the connecting rod 15 moves upward to compress the second spring 26;

[0072] Then, the pressure rollers 14 are moved in the direction away from each other, and the movement of the pressure rollers 14 drives the rotating rod 10 to rotate along the connecting rod 15; the two rotating rods 10 at the same end of the connecting rod 15 rotate to stretch the first spring 13, and at the same time, the two cylinder joints of the double-headed cylinder 12 move in the direction away from each other;

[0073] The movable cylinder joint presses the gas inside the double-headed cylinder 12 into the pressure roller 14 through the air pipe 9, and the volume of the pressure roller 14 becomes larger. The enlarged pressure roller 14 contacts the inspected packaging bag 3 more closely, and the enlarged pressure roller 14 has a better abutment effect with the inspected packaging bag 3.

[0074] The lead screw 23 is rotated, and the lead screw 23 drives the guide plate 21 to move along the inner side of the mounting frame 22. The moving guide plate 21 drives the connecting plate 19 to move, so that the guide rod 18 fixedly connected to the connecting plate 19 moves together; the moving guide rod 18 drives the guide sleeve 17 to move through the guide block 27 fixedly connected to the guide rod 18;

[0075] The movement of the guide sleeve 17 drives the connecting rod 15 to move, and at the same time, the rotating rod 10 rotatably arranged with the connecting rod 15 moves together; the first spring 13, the double-headed cylinder 12 and the pressure roller 14 directly or indirectly connected to the rotating rod 10 also move with the movement of the connecting rod 15.

[0076] When the guide sleeve 17 is directly above the second paper tube 16 and in the middle of the circumference of the second paper tube 16, stop rotating the lead screw 23; the axis of the guide sleeve 17 is always projected on the center of the axis of the inspected packaging bag 3, ensuring that the pressure of the pressure roller 14 on each part of the rolled inspected packaging bag 3 is uniform; the lead screw 23 can be adjusted to inspect packaging bags of different widths.

[0077] The motor 20 rotates in the reverse direction to drive the winding roller 8 to rotate; the rotation of the winding roller 8 drives the second paper roll 16 to rotate, and at the same time, the packaging bag 3 to be inspected passes through the detection device 5 and moves toward the winding roller 8.

[0078] As the diameter of the inspected packaging bag 3 on the winding roller 8 increases, the distance between the two rotating rods 10 at the same end of the connecting rod 15 gradually increases, so that the gas inside the double-headed cylinder 12 is continuously pressed into the pressure roller 14, and the pressure roller 14 is continuously enlarged as the internal gas increases. When the packaging bag inspection is completed, the gas in the winding roller 8 is released so that the second paper roll 16 can slide on the winding roller 8; the packaging bag 3 that has been inspected is taken out.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A winding and pressing device, characterized in that: include: A second fixing plate (6), the second fixing plate (6) being placed in a vertical direction; a winding roller (8), the winding roller (8) being an air-expanding shaft; the winding roller (8) being rotatably arranged on the front side of the second fixed plate (6), the axis of the winding roller (8) being perpendicular to the second fixed plate (6); a second paper tube (16), the second paper tube (16) and the outer circumferential surface of the winding roller (8) being detachably arranged; the outer circumferential surface of the second paper tube (16) is wrapped with a detected portion of the packaging bag (3) that is tightly fitted to the second paper tube (16); A connecting rod (15), the connecting rod (15) being arranged above the winding roller (8), the axis of the connecting rod (15) being parallel to the axis of the winding roller (8); a buffer device, the buffer device being installed between the connecting rod (15) and the second fixing plate (6), the connecting rod (15) being connected to the buffer device by sliding up and down; A driving device, the driving device drives the connecting rod (15) to move forward and backward; A clamping structure, wherein the clamping structure is provided in two groups, and each group of the clamping structure comprises two rotating rods (10); the rotating rod (10) is composed of a support rod (28) and a ring (29), the ring (29) is fixed to one end of the support rod (28), and the ring (29) is rotatably connected to the connecting rod (15); The two rotating rods (10) in the clamping structure are respectively located on two sides of the winding roller (8); A pressure roller (14) is respectively arranged on both sides of the axis of the winding roller (8); the axis of the pressure roller (14) is parallel to the axis of the winding roller (8); both ends of the pressure roller (14) are rotatably connected to the rotating rod (10) on the same side of the axis of the winding roller (8); the pressure roller (14) abuts against the detected part of the packaging bag (3); The pressure roller (14) is an inflatable elastic cylindrical structure; a cavity is arranged inside the pressure roller (14); a through hole is opened at one end of the support rod (28) away from the ring (29); the through hole is in communication with the cavity; The clamping structure further comprises a first spring (13), which is arranged between the two rotating rods (10) in the same group and is used to bring the two rotating rods (10) in the same group closer to each other. A double-headed cylinder (12) is arranged between two rotating rods (10) in the same group and connected to the rotating rods (10) via a bracket (11); a telescopic end of the double-headed cylinder (12) is hinged to the bracket (11); an air pipe (9), the air pipe (9) being located between the double-headed cylinder (12) and the pressing roller (14), one end of the air pipe (9) passing through a through hole in the support rod (28) and communicating with an internal cavity of the pressing roller (14); Air nozzles, respectively located at positions of the double-headed cylinder (12) close to the telescopic end, the air nozzles of the double-headed cylinder (12) being connected to the air pipe (9); As the packaging bag is wound around the outer circumferential surface of the second paper tube (16) which is tightly fitted to the winding roller (8), the pressure rollers (14) move in directions away from each other, and the movement of the pressure rollers (14) drives the rotating rods (10) to rotate along the connecting rod (15); the two rotating rods (10) at the same end of the connecting rod (15) rotate to stretch the first spring (13), and at the same time, the two cylinder joints of the double-headed cylinder (12) move in directions away from each other; the moving cylinder joints press the gas inside the double-headed cylinder (12) into the pressure rollers (14) through the air pipe (9), and the volume of the pressure rollers (14) increases.

2. A winding and pressing device according to claim 1, characterized in that: The buffer device comprises a guide sleeve (17); the guide sleeve (17) is fixed on the connecting rod (15); a second spring (26) and a guide block (27) abutting against the second spring (26) are arranged inside the guide sleeve (17); A guide rod (18), the guide rod (18) being fixedly connected to the guide block (27) to facilitate the guide block (27) to slide in the guide sleeve (17); A limiting ring (25) is fixed to the upper end surface of the guide sleeve (17) to prevent the guide block (27) from separating from the guide sleeve (17) during movement; the limiting ring (25) is coaxial with the guide rod (18).

3. A winding and pressing device according to claim 2, characterized in that: The driving device comprises a mounting frame (22); the mounting frame (22) is arranged on one side of the winding roller (8), and the mounting frame (22) is fixedly connected to the second fixing plate (6); a through slot (7), the through slot (7) being formed on the mounting frame (22); a lead screw (23) being arranged inside the through slot (7); an axis of the lead screw (23) being parallel to an axis of the winding roller (8); the lead screw (23) being rotatably matched with the mounting frame (22); A guide plate (21), the guide plate (21) being arranged inside the through slot (7) of the mounting frame (22); the guide plate (21) being threadedly engaged with the lead screw (23); the guide plate (21) being slidingly engaged with the through slot (7); A connecting plate (19), one end of the connecting plate (19) being fixedly connected to the upper surface of the guide plate (21), and the other end of the connecting plate (19) being fixedly connected to the guide rod (18).

4. A winding and pressing device according to claim 3, characterized in that: A reinforcing rib (24) is provided between the mounting frame (22) and the second fixing plate (6); the reinforcing rib (24) is a right-angled triangle block, one right-angled surface of the reinforcing rib (24) is fixed to the lower surface of the mounting frame (22), and the other right-angled surface of the reinforcing rib (24) is fixedly connected to the second fixing plate (6).

5. The winding and pressing device according to claim 1, characterized in that: A motor (20) is fixedly mounted on a side of the second fixed plate (6) away from the winding roller (8), and the motor (20) and the winding roller (8) are rotatably arranged.

6. A printed product inspection machine, comprising: A winding and pressing device as described in any one of claims 1 to 5; It also comprises a detection device (5), the left side of the detection device (5) being fixedly connected to a first fixed plate (4); the other side of the detection device (5) being fixedly connected to a second fixed plate (6) in the winding and pressing device; the detection device (5) being between the first fixed plate (4) and the second fixed plate (6); The feed roller (1) is an air-inflated shaft, rotatably arranged on the side of the first fixed plate (4); a detachable first paper tube (2) is arranged on the circumferential surface of the feed roller (1); and the undetected portion of the packaging bag (3) is fixedly wrapped around the first paper tube (2).

Images