Paper roll changing mechanism

Abstract

A paper roll changing mechanism comprises a roll changing preparation device, a pressing and cutting device and a pressing roller assembly, the roll changing preparation device and the pressing and cutting device are arranged on the left side and the right side, the roll changing preparation device comprises a conveying roller assembly, an adsorption assembly used for adsorbing paper and a cutting and adsorption assembly used for cutting the paper and adsorbing adhesive tape, and the adsorption assembly is rotationally arranged on the conveying roller assembly; the cutting adsorption assembly is installed on the conveying roller assembly, the cutting adsorption assembly is rotationally arranged, the cutting adsorption assembly drives the adsorption assembly to rotate when rotating, and the left pressing cutting device and the right pressing cutting device are arranged in a mutual opening and closing mode. According to the paper roll changing mechanism, the roll changing preparation device and the pressing and cutting devices are arranged, when the paper and the adhesive tape are bonded, the paper is adsorbed through the adsorption assembly, the adhesive tape is adsorbed through the cutting adsorption assembly, the paper and the adhesive tape can be effectively fixed, and when the pressing and cutting devices cut the paper, the two pressing and cutting devices press the paper at the cutting position, so that the paper roll changing efficiency is improved. The paper and the adhesive tape can be effectively fixed, and the bonding quality of the paper and the adhesive tape is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper roll changing, in particular to a paper roll changing mechanism. Background Art

[0002] In the paper roll feeding process, the cylindrical paper roll must be smoothly fed to the subsequent processing equipment. When the old paper roll is used up, it needs to be replaced with a new one. The paper of the old paper roll and the new paper roll are generally bonded by tape. During the whole roll changing process, how to fix the paper and tape is a difficult point. If the paper and tape are not fixed well, it will affect the bonding quality, resulting in the bonding point being easy to fall apart after the roll changing is completed, affecting the subsequent product processing quality.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of the utility model is to provide a paper roll changing mechanism with simple structure, good bonding quality, good product quality, high production efficiency and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] A paper roll changing mechanism designed for this purpose is characterized in that it includes a roll changing preparation device and a pressing and cutting device, and a pressure roller assembly, which are arranged on the left and right. The roll changing preparation device includes a conveying roller assembly, an adsorption assembly for adsorbing paper, and a cutting and adsorption assembly for cutting paper and adsorbing tape. The adsorption assembly is rotatably arranged on the conveying roller assembly to lift or lower the paper. The cutting and adsorption assembly is installed on the conveying roller assembly. The cutting and adsorption assembly is rotatably arranged. When the cutting and adsorption assembly rotates, it drives the adsorption assembly to rotate so as to flip the paper up to the cutting position. The left and right pressing and cutting devices are arranged to open and close with each other. When the two pressing and cutting devices make a closing movement, the paper at the cutting position is pressed and cut. The paper is conveyed by the conveying roller assembly and the pressure roller assembly.

[0006] The pressure roller assembly includes an active pressure roller and a driven pressure roller arranged on the left and right. The active pressure roller and the driven pressure roller are arranged to open and close with each other. When the paper is conveyed, the active pressure roller and the driven pressure roller make a closing movement to press the paper tightly.

[0007] It also includes a pressure rod, which is arranged between the left and right roll changing preparation devices. When the paper is turned up to the cutting position, the cutting adsorption component presses the paper onto the pressure rod.

[0008] The adsorption assembly includes a first driver, a rotating plate and a vacuum tube. The first driver drives the rotating plate, which is rotatably arranged on the conveying roller assembly. The vacuum tube is installed on the rotating plate. The vacuum tube is provided with a plurality of first adsorption holes for adsorbing paper. The first driver drives the rotating plate and the vacuum tube to rotate on the conveying roller assembly to lift or lower the paper.

[0009] The cutting and adsorption assembly includes a rotating arm and an adsorption plate. The rotating arms are respectively installed at both ends of the conveying roller assembly. The two ends of the adsorption plate are respectively connected to the corresponding rotating arms. A second driver is provided at one end of the conveying roller assembly. The second driver drives the connected rotating arm. The second driver drives the rotating arm to rotate. The adsorption plate is provided with a plurality of second adsorption holes for adsorbing the tape and a cutting groove for cutting paper.

[0010] A notch is arranged on the rotating arm, and a vacuum tube is installed on the notch; when the rotating arm rotates, the vacuum tube is driven to rotate so as to turn the paper up to the cutting position; when the first driver drives the vacuum tube to lift the paper, the vacuum tube moves out of the notch.

[0011] The pressing and cutting device includes a third driver, a pressing plate and a cutter. The third driver drives the connected pressing plate. The pressing plate is provided with a mounting groove. The cutter is installed on the mounting groove. The third driver drives the pressing plates to open and close each other. When the pressing plates make a closing movement, the paper at the cutting position is pressed, and the cutter cuts the paper.

[0012] It also includes an unwinding device arranged on the left and right, which includes a fourth drive, a pulley assembly and an unwinding air-inflating shaft for placing the paper roll. The fourth drive drives the pulley assembly, which is connected to the unwinding air-inflating shaft. The fourth drive drives the unwinding air-inflating shaft to rotate through the pulley assembly to convey the paper on the paper roll to the conveying roller assembly.

[0013] It also includes a storage rack, on which a storage component for winding paper is arranged. When the fourth driver drives the unwinding air expansion shaft to rotate through a pulley assembly, the paper on the storage component is transported to the paper roll.

[0014] The paper roll changing mechanism of the utility model is provided with a roll changing preparation device and a pressing and cutting device. When the paper and the tape are bonded, the adsorption component adsorbs the paper, and the cutting adsorption component adsorbs the tape, so that the paper and the tape can be effectively fixed. When the pressing and cutting device cuts the paper, the two pressing and cutting devices press the paper at the cutting position, which can also effectively fix the paper and the tape, improve the bonding quality of the paper and the tape, ensure that the bonding position will not fall apart, and thus improve the subsequent product processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of the overall structure of a paper roll changing mechanism in one embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of the overall structure of another aspect of the paper roll changing mechanism in one embodiment of the utility model.

[0017] Figure 3 It is a schematic structural diagram of a roll changing preparation device and a pressing and cutting device in one embodiment of the utility model.

[0018] Figure 4 It is a schematic diagram of the overall structure of a roll changing preparation device in one embodiment of the utility model.

[0019] Figure 5 It is a schematic diagram of the overall structure of another aspect of the roll changing preparation device in one embodiment of the utility model.

[0020] Figure 6 It is a schematic diagram of the overall structure of the third position of the roll changing preparation device in one embodiment of the utility model.

[0021] Figure 7 It is a schematic diagram of the overall structure of the pressing and cutting device in one embodiment of the utility model.

[0022] Figure 8 The figure is a schematic diagram of the assembly structure of the pressing plate and the cutting knife in one embodiment of the utility model.

[0023] Fig. 9 It is a schematic diagram of the overall structure of the adsorption plate in one embodiment of the utility model.

[0024] Figure 10-Figure 14 This is a schematic diagram of a paper roll changing process in one embodiment of the utility model. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-Figure 14 The paper roll changing mechanism includes a roll changing preparation device a and a pressing and cutting device b, and a pressure roller assembly c, which are arranged on the left and right. The roll changing preparation device a includes a conveying roller assembly 1, an adsorption assembly 3 for adsorbing paper, and a cutting and adsorption assembly 5 for cutting paper and adsorbing tape. The adsorption assembly 3 is rotatably arranged on the conveying roller assembly 1 to lift or lower the paper. The cutting and adsorption assembly 5 is installed on the conveying roller assembly 1. The cutting and adsorption assembly 5 is rotatably arranged. When the cutting and adsorption assembly 5 rotates, it drives the adsorption assembly 3 to rotate to turn the paper up to the cutting position 2. The left and right pressing and cutting devices b are arranged to open and close with each other. When the two pressing and cutting devices b make a closing movement, the paper at the cutting position 2 is pressed and cut. The paper is conveyed through the conveying roller assembly 1 and the pressure roller assembly c.

[0027] The pressure roller assembly c includes an active pressure roller 6 and a driven pressure roller 7 which are arranged on the left and right. The active pressure roller 6 and the driven pressure roller 7 are arranged to open and close with each other. When the paper is conveyed, the active pressure roller 6 and the driven pressure roller 7 make a closing movement to press the paper tightly. The active pressure roller 6 is connected to a driving device, and the driving device (motor) drives the active pressure roller 6 to rotate. When the paper is conveyed, the driven pressure roller 7 is driven. The driven pressure roller 7 is connected to a moving device (cylinder), and the moving device drives the driven pressure roller 7 to move, thereby realizing the opening and closing of the active pressure roller 6 and the driven pressure roller 7.

[0028] It also includes a pressure rod 8, which is arranged between the left and right roll changing preparation devices a. When the paper is turned up to the cutting position 2, the cutting and adsorption assembly 5 presses the paper against the pressure rod 8 to prevent the paper from deflecting.

[0029] The adsorption assembly 3 includes a first driver 9, a rotating plate 10 and a vacuum tube 11. The first driver 9 drives the rotating plate 10, which is rotatably arranged on the conveying roller assembly 1. The vacuum tube 11 is installed on the rotating plate 10. A plurality of first adsorption holes 12 for adsorbing paper are arranged on the vacuum tube 11. The vacuum tube 11 is connected to an air pump. The first driver 9 drives the rotating plate 10 and the vacuum tube 11 to rotate on the conveying roller assembly 1 to lift or lower the paper. The first driver 9 is a cylinder, and the first driver 9 is rotatably installed on the conveying roller assembly 1.

[0030] The cutting and adsorption assembly 5 includes a rotating arm 13 and an adsorption plate 14. The rotating arms 13 are respectively installed at both ends of the conveying roller assembly 1. The two ends of the adsorption plate 14 are respectively connected to the corresponding rotating arms 13. A second driver (not shown in the figure) is provided at one end of the conveying roller assembly 1. The second driver drives the rotating arm 13 to rotate. The second driver is a motor. The adsorption plate 14 is provided with a plurality of second adsorption holes 15 for adsorbing the tape and a cutting groove 16 for cutting paper. The adsorption plate 14 is connected to the vacuum pump. The cutting groove 16 includes a first cutting groove 27 and a second cutting groove 28. If the papers are butt-jointed (bonded at the seam between the two papers, and the bonding positions of the two papers do not overlap), the paper is cut with a knife at the position of the first cutting groove 27. If the papers are overlapped (one paper is bonded to the other paper, and the bonding positions of the two papers overlap), the paper is cut with a knife at the position of the second cutting groove 28.

[0031] The conveying roller assembly 1 includes a roller shaft 29 and a conveying roller 30. The second driver drives the roller shaft 29. The rotating arms 13 are respectively fixed at both ends of the roller shaft 29. The second driver drives the roller shaft 29 to rotate. The roller shaft 29 drives the rotating arms 13 to rotate. The conveying roller 30 is rotatably installed on the roller shaft 29. A bearing is arranged between the conveying roller 30 and the roller shaft 29, so that the roller shaft 29 cannot drive the conveying roller 30 to rotate.

[0032] A notch 17 is provided on the rotating arm 13, and the vacuum tube 11 is installed on the notch 17; when the rotating arm 13 rotates, the vacuum tube 11 is driven to rotate to flip the paper up to the cutting position 2; when the first driver 9 drives the vacuum tube 11 to lift the paper, the vacuum tube 11 moves out of the notch 17, and when the first driver 9 drives the vacuum tube 11 to lower the paper, the vacuum tube 11 moves into the notch 17.

[0033] The pressing and cutting device b includes a third driver 18, a pressing plate 19 and a cutter 20. The third driver 18 drives the connecting pressing plate 19. The pressing plate 19 is provided with a mounting groove 21. The cutter 20 is mounted on the mounting groove 21. The third driver 18 drives the pressing plates 19 to open and close each other. When the pressing plates 19 make a closing movement, the paper at the cutting position 2 is pressed, and the cutter 20 cuts the paper. The third driver 18 is a cylinder.

[0034] It also includes an unwinding device arranged on the left and right, which corresponds to the conveying roller assembly 1 one by one. The unwinding device includes a fourth driver 23, a pulley assembly 24 and an unwinding air-expanding shaft 22 for placing a paper roll 25. The fourth driver 23 drives and connects the pulley assembly 24, and the pulley assembly 24 is connected to the unwinding air-expanding shaft 22. The pulley assembly 24 includes a driving wheel, a transmission belt and a driven wheel. The fourth driver 23 drives and connects the driving wheel, and the driving wheel and the driven wheel are connected through a transmission belt. The driven wheel is connected to the unwinding air-expanding shaft 22. The fourth driver 23 is a motor. The fourth driver 23 drives the unwinding air-expanding shaft 22 to rotate through the pulley assembly 24 to convey the paper on the paper roll 25 to the conveying roller assembly 1.

[0035] It also includes a storage rack 26, on which a storage component for winding paper is provided (not shown in the figure), the storage component is a storage tray, and when the fourth driver 23 drives the unwinding air expansion shaft 22 to rotate through the pulley assembly 24, the paper on the storage component is transported to the paper roll 25, and the storage rack 26 is used to store paper. When the paper roll is changed, the paper on the paper roll 25 stops being transported. Since the paper on the entire production line will continue to be transported, the transported paper will be stored on the storage rack 26; the paper on the storage rack 26 is transported in sequence through the unwinding device, the conveying roller assembly 1 and the pressure roller assembly c.

[0036] It also includes a frame 31, the second driver, the third driver 18 and the fourth driver 23 are fixed on the frame 31, the pressure rod 8 and the storage rack 26 are installed on the frame 31, and the roller 29 and the unwinding air expansion shaft 22 are rotatably installed on the frame 31.

[0037] The paper roll changing method of the paper roll changing mechanism comprises the following steps:

[0038] 1) Manually pass the first paper 4 on the paper roll 25 through the conveying roller assembly 1 and place it on the vacuum tube 11 and the adsorption plate 14;

[0039] 2) Start the adsorption switch, the vacuum tube 11 adsorbs the first paper 4 to fix the first paper 4, and manually cuts the first paper 4 with a knife at the position of the first cutting groove 27;

[0040] 3) The adsorption component 3 drives the first paper 4 to rise upward, places the tape on the adsorption plate 14, starts the adsorption switch, and the adsorption plate 14 adsorbs the tape to fix the tape;

[0041] 4) The adsorption component 3 drives the first paper 4 to descend to the original position, and then the first paper 4 is manually pasted on the tape, and the roll change preparation process is now completed;

[0042] 5) Start the preparation switch, the second driver drives the rotating arm 13 to rotate, so that the vacuum tube 11 and the adsorption plate 14 drive the first paper 4 and the tape to turn up to the cutting position 2, and the cutting adsorption assembly 5 presses the first paper 4 onto the pressure rod 8;

[0043] 6) The third driver 18 drives the pressing plate 19 to perform a closing movement to press the first paper 4 and the second paper 4' at the cutting position 2, so that the first paper 4 and the second paper 4' are bonded by the adhesive tape, and at the same time the cutter 20 cuts the second paper 4', and at the same time the active pressing roller 6 and the driven pressing roller 7 press the second paper 4'; when the bonding position of the first paper 4 and the second paper 4' passes through the active pressing roller 6 and the driven pressing roller 7, due to the pressing effect of the active pressing roller 6 and the driven pressing roller 7, the bonding position of the first paper 4 and the second paper 4' is more firmly bonded.

[0044] 7) After the roll change is completed, the rotating arm 13 drives the vacuum tube 11 and the adsorption plate 14 to reset, and the third driver 18 drives the pressing plate 19 to reset.

[0045] The above method is a paper butt-jointed roll changing method, and the paper overlapped roll changing method is similar to the paper butt-jointed roll changing method, the difference being that the vacuum tube 11 and the adsorption plate 14 suck the first paper 4, the first paper 4 is manually cut with a knife at the position of the second cutting groove 28, and then the tape is manually pasted on the first paper 4, without the need to lift and lower the first paper 4.

[0046] The above method is the process of changing the paper on the right to the left. Similarly, the paper on the left can also be changed to the right. The roll changing process of both is the same.

[0047] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A paper roll changing mechanism, characterized in that: The invention comprises a roll-changing preparation device (a) and a pressing and cutting device (b) arranged on the left and right, and a pressure roller assembly (c). The roll-changing preparation device (a) comprises a conveying roller assembly (1), a suction assembly (3) for sucking paper, and a cutting suction assembly (5) for cutting paper and sucking adhesive tape. The suction assembly (3) is rotatably arranged on the conveying roller assembly (1) to lift or lower the paper. The cutting suction assembly (5) is mounted on the conveying roller assembly (1). The cutting suction assembly (5) is rotatably arranged. When the cutting suction assembly (5) rotates, it drives the suction assembly (3) to rotate so as to turn the paper up to the cutting position (2). The left and right pressing and cutting devices (b) are arranged to open and close with each other. When the two pressing and cutting devices (b) make a closing movement, the paper at the cutting position (2) is pressed and cut. The paper is conveyed through the conveying roller assembly (1) and the pressure roller assembly (c).

2. The paper roll changing mechanism according to claim 1, characterized in that: The pressure roller assembly (c) comprises an active pressure roller (6) and a driven pressure roller (7) arranged on the left and right. The active pressure roller (6) and the driven pressure roller (7) are arranged to open and close with each other. When the paper is conveyed, the active pressure roller (6) and the driven pressure roller (7) perform a closing movement to press the paper tightly.

3. The paper roll changing mechanism according to claim 2, characterized in that: It also includes a pressure rod (8), which is arranged between the left and right roll-changing preparation devices (a). When the paper is turned up to the cutting position (2), the cutting adsorption component (5) presses the paper onto the pressure rod (8).

4. The paper roll changing mechanism according to claim 3, characterized in that: The adsorption assembly (3) comprises a first driver (9), a rotating plate (10) and a vacuum tube (11); the first driver (9) drives the rotating plate (10); the rotating plate (10) is rotatably arranged on the conveying roller assembly (1); the vacuum tube (11) is mounted on the rotating plate (10); a plurality of first adsorption holes (12) for adsorbing paper are arranged on the vacuum tube (11); the first driver (9) drives the rotating plate (10) and the vacuum tube (11) to rotate on the conveying roller assembly (1) to lift or lower the paper.

5. The paper roll changing mechanism according to claim 4, characterized in that: The cutting adsorption assembly (5) comprises a rotating arm (13) and an adsorption plate (14); the rotating arms (13) are respectively mounted at two ends of the conveying roller assembly (1); the two ends of the adsorption plate (14) are respectively connected to the corresponding rotating arms (13); a second driver is provided at one end of the conveying roller assembly (1); the second driver drives the rotating arm (13); the second driver drives the rotating arm (13) to rotate; and a plurality of second adsorption holes (15) for adsorbing adhesive tape and a cutting groove (16) for cutting paper are provided on the adsorption plate (14).

6. The paper roll changing mechanism according to claim 5, characterized in that: A notch (17) is provided on the rotating arm (13), and the vacuum tube (11) is mounted on the notch (17); when the rotating arm (13) rotates, the vacuum tube (11) is driven to rotate, so as to turn the paper up to the cutting position (2); when the first driver (9) drives the vacuum tube (11) to lift the paper, the vacuum tube (11) moves out of the notch (17).

7. The paper roll changing mechanism according to claim 6, characterized in that: The pressing and cutting device (b) comprises a third driver (18), a pressing plate (19) and a cutter (20). The third driver (18) drives the pressing plate (19). The pressing plate (19) is provided with a mounting groove (21). The cutter (20) is mounted on the mounting groove (21). The third driver (18) drives the pressing plates (19) to open and close with each other. When the pressing plates (19) move in a closing motion, the paper at the cutting position (2) is pressed, and the cutter (20) cuts the paper.

8. The paper roll changing mechanism according to claim 7, characterized in that: The paper roll (25) is provided with a fourth driver (23), a belt pulley assembly (24), and an unwinding air-expanding shaft (22) for placing a paper roll (25); the fourth driver (23) is connected to the belt pulley assembly (24), the belt pulley assembly (24) is connected to the unwinding air-expanding shaft (22), and the fourth driver (23) drives the unwinding air-expanding shaft (22) to rotate through the belt pulley assembly (24) to transport the paper on the paper roll (25) to the transport roller assembly (1).

9. The paper roll changing mechanism according to claim 8, characterized in that: It also includes a material storage rack (26), on which a material storage component for winding paper is provided, and when the fourth driver (23) drives the unwinding air expansion shaft (22) to rotate via a pulley assembly (24), the paper on the material storage component is transported to the paper roll (25).

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