Conveying device

Abstract

The utility model relates to a conveying device which comprises a discharging roller used for limiting a discharging roll, a receiving roller used for recycling a bottom film and a guide roller used for guiding a conveying material layer, and a first tension adjusting roller used for tensioning the bottom film is movably arranged between the receiving roller and the discharging roller. The first tension adjusting roller is arranged triangularly with the receiving roller and the discharging roller in a natural state or is arranged on an extension line of a line segment formed by the receiving roller and the discharging roller, the first tension adjusting roller moves towards or away from the line segment formed by the receiving roller and the discharging roller in a stressed state, and the first tension adjusting roller moves towards or away from the line segment formed by the discharging roller in a natural state. The trend of recovering the initial state exists; when the discharging roll rotates, the first tension adjusting roller moves, a moving space is reserved for the bottom film, the situation that the bottom film affects rewinding of the discharging roll is effectively improved, and normal operation of the device is guaranteed.

Description

Technical Field

[0001] This application belongs to the field of film conveying, and specifically, relates to a conveying device. Background Art

[0002] In the prior art, when using the existing device for Z-shaped laminating, the passive feeding method is usually adopted. During the repeated spreading and pressing processes, the input end of the intermediate layer is slack or even wound, which affects the normal feeding and laminating process.

[0003] In order to improve the slack and winding situation in the prior art, during the laminating process, the unwinding roll is rewound. For example, a conveying device includes an unwinding roller for fixing the unwinding roll, and the unwinding roller is connected to a motor. The motor periodically drives the unwinding roller to rotate in the direction opposite to the feeding direction to tighten the slack material layer.

[0004] However, when using this device to convey a material layer with a bottom film, the bottom film needs to be separately wound up, resulting in inconsistent tensions between the bottom film and the material layer. During the rotation of the unwinding roller, the bottom film with a large tension hinders the movement of the unwinding roller, causing a lag in the tension adjustment of the material layer. During the continuous rotation, the tension may become too large and the bottom film may break, affecting the laminating efficiency. Summary of the Utility Model

[0005] In order to reduce the hindrance of the bottom film to the rewinding adjustment process and ensure the normal progress of the material layer transmission and adjustment, this application provides a conveying device.

[0006] A conveying device includes an unwinding roller for limiting the unwinding roll, a winding roller for recycling the bottom film, and a guiding roller for guiding the conveyed material layer. A first tension adjusting roller for tensioning the bottom film is movably arranged between the winding roller and the unwinding roller. In the natural state, the first tension adjusting roller is arranged in a triangle with the winding roller and the unwinding roller or is arranged on the extension line of the line formed by the winding roller and the unwinding roller. When the first tension adjusting roller is in a stressed state, it moves along the line formed by the winding roller and the unwinding roller towards or away from them. In the natural state, the first tension adjusting roller has a tendency to return to its initial state.

[0007] Preferably, the winding roller and the unwinding roller are respectively connected to different driving members, and the rotation speed of the winding roller is lower than that of the unwinding roller.

[0008] Preferably, in the natural state, the first tension adjusting roller is arranged in a triangular shape with the winding roller and the unwinding roller, and in the natural state, the first tension adjusting roller is arranged below the line formed by the winding roller and the unwinding roller.

[0009] Preferably, in the natural state, the first tension adjusting roller is arranged in a triangular shape with the material collecting roller and the material feeding roller. In the natural state, the first tension adjusting roller is arranged above the line formed by the material collecting roller and the material feeding roller. The first tension adjusting roller is also connected with an elastic member, and the elastic member has a force to maintain the natural state of the first tension adjusting roller.

[0010] Preferably, it further includes a frame, and a sliding track is arranged on the frame. One end of the elastic member far away from the first tension adjusting roller is connected with one end of the sliding track close to the line formed by the material collecting roller and the material feeding roller.

[0011] Preferably, a receiving cavity is formed at one end of the sliding track far away from the material collecting roller, and one end of the elastic member far away from the first tension adjusting roller is connected with the inner bottom wall of the receiving cavity.

[0012] Preferably, in the natural state, the first tension adjusting roller is arranged on the extension line of the line formed by the material collecting roller and the material feeding roller, and the moving track of the first tension adjusting roller is arranged in an arc shape.

[0013] Preferably, at least one side of the moving track of the first tension adjusting roller is further provided with a buffer roller.

[0014] Preferably, the buffer roller is arranged on the line formed by the material collecting roller and the material feeding roller.

[0015] Preferably, it further includes a second tension adjusting roller arranged movably, and the second tension adjusting roller has a force to tension the material layer.

[0016] After adopting the above technical solution, the present application has the following beneficial effects compared with the prior art.

[0017] By movably arranging the first tension adjusting roller between the bottom film material collecting roller and the material feeding roller, through the movement of the first tension adjusting roller, the bottom film between the material feeding roller and the material collecting roller can be adjusted, so as to facilitate the unwinding and rotary tightening processes of the bottom film cooperating with the material layer, effectively improving the influence of the bottom film on the adjustment of the material layer; and by respectively controlling the speeds of the material collecting roller and the material feeding roller, making the rotation speed of the material collecting roller less than that of the material feeding roller, since the first tension adjusting roller has a tendency to return to the initial state, the bottom film between the material feeding roller and the material collecting roller grows again. With such a setting, the operation of the rotary tightening process is effectively guaranteed, and the lamination process can proceed normally. Description of the Drawings

[0018] Figure 1 is a schematic diagram of a conveying device in Embodiment 1 of the present application;

[0019] Figure 2 is Figure 1 the enlarged view of part A in

[0020] Figure 3It is a schematic diagram of a conveying device in Embodiment 1 of the present application to highlight the adjusting roller;

[0021] Figure 4 It is a schematic diagram of a conveying device in Embodiment 2 of the present application;

[0022] Figure 5 It is Figure 4 The enlarged view of part B in

[0023] Figure 6 It is a schematic diagram of a conveying device in Embodiment 3 of the present application to highlight the sliding track;

[0024] Figure 7 It is Figure 6 The sectional view in the A-A direction in

[0025] In the figure: 1, frame; 11, first groove; 12, accommodation cavity; 13, sliding track; 14, second groove; 2, guiding roller; 3, feeding roller; 4, receiving roller; 5, sliding block; 6, first tension adjusting roller; 7, second tension adjusting roller; 8, elastic member; 9, buffer roller. Detailed implementation manners

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not intended to limit the scope of the present application.

[0027] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0028] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0029] The following further describes the detailed implementation manners of the present application with reference to the accompanying drawings.

[0030] Embodiment 1

[0031] A conveying device, referring toFigure 1 , including a frame 1, on the surface of one side of the frame 1, a plurality of guide rollers 2 for guiding the material layer are arranged. In the embodiment of the present application, the frame 1 is arranged in a box shape, and four guide rollers 2 are arranged. Two of the guide rollers 2 are arranged at the initial end of the material layer transmission; the remaining two guide rollers 2 are arranged at the end of the material layer transmission, and a gap for the material layer to pass through is formed between the two guide rollers 2 arranged at the end of the material layer transmission, which jointly act to limit the material layer. During the lamination process, after the material layer passes through the gap between the two guide rollers 2, it supplies material to the laminator. In the actual use process, the number and position of the guide rollers 2 can be adjusted according to the actual production situation.

[0032] Refer to Figure 1 , at the initial end of the material layer transmission, a feeding roller 3 is also arranged. One end of the roller shaft of the feeding roller 3 passes through the frame 1 and is connected to the output end of a driving motor (not shown in the figure). In the embodiment of the present application, the feeding roller 3 is an air shaft, and the driving motor is installed in the cavity of the frame 1. In other embodiments, the driving motor can also be installed on other outer walls of the frame 1. When transmitting the material layer, the driving motor can drive the feeding roller 3 to rotate forward or backward, and through the limiting function of the feeding roller 3 itself, the feeding roll is synchronized with the feeding roller 3 to rotate, realizing the transmission of the material layer or the rotary reeling of the material roll.

[0033] Refer to Figures 1 to 3 , on the side of the frame 1 where the feeding roller 3 is arranged, a receiving roller 4 is also arranged. The receiving roller 4 is connected to another different driving motor, and the rotational speeds of both the receiving roller 4 and the feeding roller 3 can be independently adjusted. The height of the receiving roller 4 is higher than that of the feeding roller 3. A first groove 11 is also formed on the frame 1. The first groove 11 is arranged vertically, and a sliding track 13 is arranged on the inner side wall of the first groove 11. The line segment determined by the feeding roller 3 and the receiving roller 4 intersects with the sliding track 13, and the highest point of the sliding track 13 is equal to the height lower than the intersection point. A sliding block 5 is slidably arranged in the first groove 11, and the sliding block 5 cooperates with the sliding track 13 to slide. One side of the sliding block 5 close to the opening end of the first groove 11 is connected to a first tension adjusting roller 6. In the initial state, the first tension adjusting roller 6 is located at the bottom end of the sliding track 13, and during the sliding process of the first tension adjusting roller 6, it always does not exceed the height of the line segment where the feeding roller 3 and the receiving roller 4 are located (that is, the height of the intersection point of the line segment determined by the feeding roller 3 and the receiving roller 4 and the path where the sliding track 13 is located. In the present application, this intersection point is called the intersection point). In other embodiments, according to the actual feeding situation, the receiving roller 4 can also be arranged below the feeding roller 3, and the included angle between the first groove 11 and the vertical direction can be adjusted.

[0034] Refer to Figure 3, a second groove 14 vertically arranged is also formed at a position on the frame 1 between the feeding roller 3 and the guiding roller 2. The second groove 14 is arranged between the two guiding rollers 2 at the initial end of the transmission. A sliding track 13 is arranged in the second groove 14. The roller shaft of the second tension adjusting roller 7 extends into the second groove 14 and is in sliding fit with the sliding track 13. In other embodiments, the second groove 14 can also be arranged obliquely according to actual situations.

[0035] During lamination, the material roll is sleeved on the feeding roller 3 so that the material roll rotates synchronously with the feeding roller 3. After separating the bottom film and the material layer, the bottom film is partially attached to the first tension adjusting roller 6. After turning through the first tension adjusting roller 6, the material is collected by the take-up roll. During normal feeding, the first tension adjusting roller 6 acts as the guiding roller 2 to guide the material roll. When too much material layer is fed, the driving motor drives the feeding roller 3 to rotate in the direction opposite to the feeding direction, and the excess material layer is retracted. At this time, the tension received by the bottom film becomes larger, and the acting force on the first tension adjusting roller 6 becomes larger. The first tension adjusting roller 6 moves upward under the action of the bottom film, and at the same time, part of the bottom film is rewound, effectively improving the situation where the bottom film affects the rewinding. At the same time, the staff can also adjust the rotation speed of the take-up roller 4 so that the rotation speed of the take-up roller 4 is slightly lower than that of the feeding roller 3. The length of the bottom film between the feeding roller 3 and the take-up roller 4 increases, and the first tension adjusting roller 6 moves back to the initial position under the action of gravity, ensuring the normal use of the device.

[0036] Embodiment 2

[0037] A conveying device, different from that in Embodiment 1, with reference to Figure 4 and Figure 5 , the lowest point of the sliding track 13 is set to be equal to or higher than the height of the intersection point. During the sliding process of the first tension adjusting roller 6, it is not lower than the height of the intersection point. An elastic member 8 is connected to one end of the sliding track 13 close to the intersection point. In the embodiment of the present application, the elastic member 8 is a spring. The other end of the spring is connected to the sliding block 5 and has a force on the sliding block 5 to make the sliding block 5 move away from the intersection point. Under the action of the elastic member 8, the first tension adjusting roller 6 is located at one end of the sliding track 13 away from the intersection point.

[0038] With reference to Figure 4 , in order to further reduce the influence during the adjustment of the first tension adjusting roller 6, a buffer roller 9 is also arranged on the line segment determined by the feeding roller 3 and the take-up roller 4. The buffer roller 9 is arranged on both sides of the curve where the sliding track 13 is located.

[0039] During the rewinding and collecting process, the length and tension of the bottom film are adjusted by the acting force of the spring, so as to ensure the normal progress of the rewinding process.

[0040] Embodiment 3

[0041] A conveying device, different from that in Embodiment 1, with reference toFigure 6 and Figure 7 , both the first groove 11 and the sliding track 13 provided on the inner side wall of the first groove 11 are arc-shaped. A receiving cavity 12 is formed in the side wall of the arc-shaped first groove 11 away from the intersection point. An elastic member 8 is connected to the bottom of the receiving cavity 12. In the embodiment of the present application, the elastic member 8 is a tension spring. The other end of the tension spring is connected to the first tension adjusting roller 6. When the first tension roller is only affected by the gravity of the first tension roller, the first tension roller is located at one end of the arc-shaped first groove 11 away from the intersection point and on the extension line of the line segment determined by the take-up roller 4 and the pay-off roller 3. The setting of the arc-shaped sliding track 13 effectively reduces the impact force acting on the bottom film when there is a drastic change.

[0042] The above are only the preferred embodiments of the present application, and do not impose any form of limitation on the present application. Although the present application has been disclosed above with the preferred embodiments, it is not intended to limit the present application. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present application, can make some changes or modifications using the technical content prompted above into equivalent embodiments of equivalent changes. The implementation schemes in the above embodiments can also be further combined or replaced. However, as long as the content does not depart from the technical solution of the present application, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still fall within the scope of the present application scheme.

Claims

1. A transfer device, characterized in that, It includes a feeding roller (3) for limiting the feeding roll, a winding roller (4) for recycling the bottom film, and a guiding roller (2) for guiding and conveying the material layer. A first tension adjusting roller (6) for tensioning the bottom film is movably arranged between the winding roller (4) and the feeding roller (3). In the initial state, the first tension adjusting roller (6) is arranged in a triangular shape with the winding roller (4) and the feeding roller (3), or is arranged on the extension line of the line formed by the winding roller (4) and the feeding roller (3). When the first tension adjusting roller (6) is in a stressed state, it moves along the line formed by moving towards or away from the winding roller (4) and the feeding roller (3). In the natural state, the first tension adjusting roller (6) has a tendency to return to the initial state.

2. The conveying device according to claim 1, characterized in that, The winding roller (4) and the feeding roller (3) are respectively connected to different driving members, and the rotation speed of the winding roller (4) is lower than that of the feeding roller (3).

3. The conveying device according to claim 1, wherein In the natural state, the first tension adjusting roller (6) is arranged in a triangular shape with the winding roller (4) and the feeding roller (3), and in the natural state, the first tension adjusting roller (6) is arranged lower than the line formed by the winding roller (4) and the feeding roller (3).

4. The conveying device according to claim 1, characterized in that, In the natural state, the first tension adjusting roller (6) is arranged in a triangular shape with the winding roller (4) and the feeding roller (3). In the natural state, the first tension adjusting roller (6) is arranged above the line formed by the winding roller (4) and the feeding roller (3). An elastic member (8) is also connected to the first tension adjusting roller (6), and the elastic member (8) has a force on the first tension adjusting roller (6) to maintain the natural state of the first tension adjusting roller (6).

5. The conveying device according to claim 4, characterized in that, It further includes a frame (1), and a sliding track (13) is arranged on the frame (1). One end of the elastic member (8) away from the first tension adjusting roller (6) is connected to one end of the sliding track (13) close to the line formed by the winding roller (4) and the feeding roller (3).

6. The conveying device according to claim 5, characterized in that, A receiving cavity (12) is opened at one end of the sliding track (13) away from the winding roller (4), and one end of the elastic member (8) away from the first tension adjusting roller (6) is connected to the inner bottom wall of the receiving cavity (12).

7. The conveying device according to claim 1, wherein, In the natural state, the first tension adjusting roller (6) is arranged on the extension line of the line formed by the winding roller (4) and the feeding roller (3), and the moving track of the first tension adjusting roller (6) is arranged in an arc shape.

8. The transfer device according to any one of claims 1-7, characterized in that, At least one side of the moving track of the first tension adjusting roller (6) is further provided with a buffer roller (9).

9. The transfer device according to claim 8, wherein The buffer roller (9) is arranged on the line formed by the winding roller (4) and the feeding roller (3).

10. The conveying device according to claim 1, characterized in that, It further includes a second tension adjusting roller (7) arranged movably, and the second tension adjusting roller (7) has a force for tensioning the material layer.

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