Web automatic replacement device

Abstract

The utility model provides a kind of roll paper automatic replacement device, belong to roll paper fixing tool field.It includes carousel, is equipped with several placement cylinder on carousel, is equipped with at least two mutually opposing placement grooves of being arranged in placement cylinder, slidingly connected with clamping rod in placement groove, is provided with unfolding structure in placement cylinder, unfolding structure is connected with clamping rod, and clamping rod can extend out placement cylinder under the action of unfolding structure, with the rotation of carousel, in succession several roll paper are fixed on several placement cylinders, when coating is completed, clamping rod is retracted in placement cylinder under the work of unfolding structure, with the continued rotation of carousel, when the roll paper of coating is placed downward will automatically drop out placement cylinder, to realize the automatic feeding and discharging of roll paper, and through clamping rod and unfolding structure make that roll paper is stably fixed on placement cylinder.

Description

Technical Field

[0001] This utility model belongs to the field of roll paper fixing fixtures, and in particular relates to an automatic roll paper changing device. Background Technology

[0002] After the roll paper is manufactured, a film needs to be applied to its outer surface to display product information or advertising content. During this process, the roll paper needs to be replaced and fixed so that it can be laminated sequentially. However, existing technical solutions usually use a manual replacement structure, and the fixing effect of the fixtures used to fix the roll paper needs to be further improved. During lamination, the roll paper often moves, causing the lamination to be crooked or folded, resulting in lamination failure and affecting the lamination pass rate.

[0003] For example, a Chinese utility model patent discloses a multi-functional roll-to-roll laminating machine [application number CN202310397067.2], which includes a roll feeding device, a sheet feeding device, a laminating device, and a receiving device arranged in sequence. The sheet feeding device is characterized by having a guiding device, through which the roll of material to be laminated from the roll feeding device enters the laminating device. One machine can laminate either rolls or sheets of material to be laminated. This technical solution achieves automatic roll paper replacement, but the fixing effect of its fixture needs further improvement. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing an automatic roll paper changing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic roll paper changing device includes a turntable with a plurality of placement tubes. Each placement tube has at least two opposing placement slots. A locking rod is slidably connected to each placement slot. An unfolding structure is provided inside each placement tube. The unfolding structure is connected to the locking rod, and the locking rod can extend out of the placement tube under the action of the unfolding structure.

[0007] In the aforementioned automatic roll paper changing device, the unfolding structure includes a movable rod slidably connected to a placement tube, and at least two top blocks sliding inside the placement tube. The top blocks are fixedly connected to a locking rod, and the top blocks are connected to the movable rod via a rotating connecting shaft. The two ends of the rotating connecting shaft are rotatably connected to the top blocks and the movable rod, respectively. The movable rod moves along the axial direction of the placement tube, and the moving direction of the top blocks is perpendicular to the moving direction of the movable rod.

[0008] In the aforementioned automatic roll paper changing device, the snap-fit ​​rod is provided with two support blocks, which are slidably connected to the I-shaped groove located on the placement roll. The top block is located in the middle of the two support blocks and at the center of the snap-fit ​​rod.

[0009] In the aforementioned automatic roll paper changing device, the moving rod extends out of the placement tube and is fixed on the turntable, and the placement tube is connected to the output shaft of the transverse drive provided on the turntable.

[0010] In the above-mentioned automatic roll paper changing device, the outer surface of the placement tube is provided with a bottom edge ring, and the end of the clamping rod away from the bottom edge ring is provided with a top edge block, which can extend out of the placement tube.

[0011] In the aforementioned automatic roll paper changing device, the outer surface of the clamping rod is covered with a rubber pad that has deformation capability.

[0012] The aforementioned automatic roll paper changing device also includes a fixed strength detection shaft, wherein the placement tube can rotate to one side of the fixed strength detection shaft, and the fixed strength detection shaft is rotatably mounted on the base.

[0013] In the above-mentioned automatic roll paper changing device, the base is connected to the drive motor, a cavity is provided between the fixed strength detection shaft and the base, a rotating shaft is provided at the end of the fixed strength detection shaft, the rotating shaft extends into the cavity and is rotatably connected to the base, and a torsion spring is provided between the rotating shaft and the inner wall of the cavity.

[0014] In the aforementioned automatic roll paper changing device, the outer surface of the fixed strength detection shaft is covered with a layer of cloth or adhesive.

[0015] In the aforementioned automatic roll paper changing device, the turntable is provided with four placement cylinders arranged at equal angles. The fixed strength detection shaft is placed horizontally. The placement cylinder at the upper end is the feeding station, the placement cylinder at the lower end is the discharging station, and the two horizontally placed placement cylinders are the fixed strength detection station and the laminating station, respectively.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. As the turntable rotates, several rolls of paper are fixed onto several placement tubes in sequence. After lamination is completed, the clamping rod retracts into the placement tube under the operation of the unfolding structure. As the turntable continues to rotate, the laminated rolls of paper will automatically fall out of the placement tube when placed downwards, thus realizing automatic loading and unloading of rolls of paper. The clamping rod and unfolding structure ensure that the rolls of paper are stably fixed on the placement tubes.

[0018] 2. When the roll of paper is placed on the placement tube, it will abut against the bottom edge ring. As the unfolding structure works, the locking rod will move out of the placement tube, and the top edge block will extend out of the placement tube and approach the other end of the roll of paper. During the subsequent lamination process, even if the roll of paper moves, it will be restricted within the bottom edge ring and the top edge block.

[0019] 3. The rubber pad increases the friction between the paper roll and the roll, making the paper roll more stable in place. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0021] Figure 2 This is a schematic diagram of the placement tube;

[0022] Figure 3 yes Figure 2 An illustration after unfolding;

[0023] Figure 4 This is a schematic diagram of the fixed strength testing axis.

[0024] In the diagram: turntable 10, placement cylinder 11, placement groove 12, snap-fit ​​rod 13, unfolding structure 14, moving rod 15, top block 16, rotating connecting shaft 17, support block 18, I-beam groove 19, transverse drive 20, bottom edge ring 21, top edge block 22, fixed strength detection shaft 23, base 24, cavity 25, rotating shaft 26, torsion spring 27. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] This embodiment provides an automatic roll paper changing device, combined with Figure 1-4 As shown, the device includes a turntable 10, on which a plurality of placement cylinders 11 are provided. Each placement cylinder 11 has at least two placement slots 12 arranged opposite to each other. A locking rod 13 is slidably connected in each placement slot 12. An unfolding structure 14 is provided in each placement cylinder 11. The unfolding structure 14 is connected to the locking rod 13, and the locking rod 13 can extend out of the placement cylinder 11 under the action of the unfolding structure 14.

[0027] In this embodiment, the roll of paper falls from the transport mechanism onto the placement cylinder 11, so that the roll of paper is fitted onto the placement cylinder 11. Then, the unfolding structure 14 causes the locking rod 13 to extend outwards from the placement cylinder 11 until it abuts against the inner wall of the roll of paper. At least two locking rods 13 are provided opposite each other, so that the roll of paper is fixed onto the placement cylinder 11 by abutting the roll of paper in two opposite directions. As the turntable 10 rotates, several rolls of paper are fixed onto several placement cylinders 11 in sequence. After the lamination is completed, the locking rod 13 retracts into the placement cylinder 11 under the operation of the unfolding structure 14. As the turntable 10 continues to rotate, when the laminated roll of paper is placed downwards, it will automatically fall out of the placement cylinder 11, thereby realizing the automatic loading and unloading of the roll of paper. The locking rod 13 and the unfolding structure 14 ensure that the roll of paper is stably fixed on the placement cylinder 11.

[0028] The unfolding structure 14 includes a movable rod 15 slidably connected to the placement cylinder 11, and at least two top blocks 16 sliding inside the placement cylinder 11. The top blocks 16 are fixedly connected to the locking rod 13. The top blocks 16 and the movable rod 15 are connected by a rotating connecting shaft 17. The two ends of the rotating connecting shaft 17 are rotatably connected to the top blocks 16 and the movable rod 15, respectively. The movable rod 15 moves along the axial direction of the placement cylinder 11, and the moving direction of the top blocks 16 is perpendicular to the moving direction of the movable rod 15.

[0029] In this embodiment, during the process of the snap-fit ​​rod 13 extending outward to fix the roll of paper, the moving rod 15 and the placement tube 11 are relatively displaced, so that the moving rod 15 continues to move into the placement tube 11 relative to the placement tube 11. By rotating the connecting shaft 17, the two top blocks 16 move towards the sides of the placement tube 11, thereby driving the snap-fit ​​rod 13 to move out of the placement tube 11 and abut against the inner wall of the roll of paper to fix it.

[0030] The snap-fit ​​rod 13 is provided with two support blocks 18, which are slidably connected to the I-shaped groove 19 located in the placement cylinder 11. The top block 16 is located in the middle of the two support blocks 18 and at the center of the snap-fit ​​rod 13.

[0031] In this embodiment, since the locking rod 13 is relatively long, the locking rod 13 can move stably and not tilt during the movement by means of the sliding connection between the two support blocks 18 and the I-shaped groove 19 and the top block 16 being located in the middle of the two support blocks 18.

[0032] The moving rod 15 extends out of the placement cylinder 11 and is fixed on the turntable 10. The placement cylinder 11 is connected to the output shaft of the transverse drive 20 provided on the turntable 10.

[0033] In this embodiment, when the unfolding structure 14 is working, the placement cylinder 11 is moved by the transverse drive 20, thereby realizing the relative displacement between the placement cylinder 11 and the moving rod 15.

[0034] The outer surface of the placement cylinder 11 is provided with a bottom edge ring 21, and the end of the locking rod 13 away from the bottom edge ring 21 is provided with a top edge block 22, which can extend out of the placement cylinder 11.

[0035] In this embodiment, when the roll of paper is placed on the placement tube 11, it will abut against the bottom edge ring 21. As the unfolding structure 14 works, the locking rod 13 will move out of the placement tube 11, and the top edge block 22 will extend out of the placement tube 11 and be close to the other end of the roll of paper. In the subsequent lamination process, even if the roll of paper moves, it will be restricted within the bottom edge ring 21 and the top edge block 22.

[0036] The outer surface of the snap-fit ​​rod 13 is covered with a rubber pad that has the ability to deform.

[0037] In this embodiment, the friction between the rubber pad and the paper roll is increased, making the paper roll more stable in its fixation.

[0038] It also includes a fixed strength detection shaft 23, and the placement cylinder 11 can rotate to one side of the fixed strength detection shaft 23, which is rotatably mounted on the base 24.

[0039] The base 24 is connected to the drive motor. A cavity 25 is provided between the fixed strength detection shaft 23 and the base 24. A rotating shaft 26 is provided at the end of the fixed strength detection shaft 23. The rotating shaft 26 extends into the cavity 25 and is rotatably connected to the base 24. A torsion spring 27 is provided between the rotating shaft 26 and the inner wall of the cavity 25.

[0040] The outer surface of the fixed strength testing shaft 23 is covered with a layer of cloth or adhesive.

[0041] In this embodiment, after the roll of paper is fixed on the placement tube 11, the turntable 10 rotates to move the roll of paper to the fixed strength detection shaft 23 and abuts against the fixed strength detection shaft 23. Then the base 24 rotates. Due to the presence of the cloth or adhesive layer, the fixed strength detection shaft 23 will not rotate temporarily, thereby causing the torsion spring 27 to contract and generate a reaction force. If the roll of paper is fixed well, the generated reaction force will not cause the roll of paper to move. If the fixing effect is not good, the generated reaction force will cause the roll of paper to move. This is used to determine whether the fixing effect is good. If the roll of paper with poor fixing effect continues to rotate to the downward placement position, the unfolding structure 14 retracts, causing the roll of paper to fall out.

[0042] The turntable 10 is provided with four placement cylinders 11 arranged at equal angles. The fixed strength detection shaft 23 is placed horizontally. The placement cylinder 11 at the upper end is the material feeding station, the placement cylinder 11 at the lower end is the material discharging station, and the two horizontally placed placement cylinders 11 are the fixed strength detection station and the film coating station, respectively.

[0043] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0044] Although this article frequently uses terms such as turntable 10, placement cylinder 11, placement groove 12, snap-fit ​​rod 13, unfolding structure 14, moving rod 15, top block 16, rotating connecting shaft 17, support block 18, I-beam groove 19, transverse drive 20, bottom edge ring 21, top edge block 22, fixed strength detection shaft 23, base 24, cavity 25, rotating shaft 26, torsion spring 27, etc., these terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would be contrary to the spirit of this utility model.

Claims

1. An automatic roll paper changing device, comprising a turntable (10), characterized in that, The turntable (10) is provided with a plurality of placement cylinders (11), and each placement cylinder (11) is provided with at least two placement slots (12) arranged opposite to each other. A locking rod (13) is slidably connected in the placement slot (12). An unfolding structure (14) is provided in the placement cylinder (11). The unfolding structure (14) is connected to the locking rod (13), and the locking rod (13) can extend out of the placement cylinder (11) under the action of the unfolding structure (14).

2. The automatic roll paper changing device according to claim 1, characterized in that, The unfolding structure (14) includes a movable rod (15) slidably connected to the placement cylinder (11) and at least two top blocks (16) slidably inside the placement cylinder (11). The top blocks (16) are fixedly connected to the snap-fit ​​rod (13). The top blocks (16) and the movable rod (15) are connected by a rotating connecting shaft (17). The two ends of the rotating connecting shaft (17) are rotatably connected to the top blocks (16) and the movable rod (15) respectively. The movable rod (15) moves axially along the placement cylinder (11). The moving direction of the top blocks (16) is perpendicular to the moving direction of the movable rod (15).

3. The automatic roll paper changing device according to claim 2, characterized in that, The snap-fit ​​rod (13) is provided with two support blocks (18), which are slidably connected to the I-shaped groove (19) located in the placement cylinder (11). The top block (16) is located in the middle of the two support blocks (18) and at the center of the snap-fit ​​rod (13).

4. The automatic roll paper changing device according to claim 2, characterized in that, The moving rod (15) extends out of the placement tube (11) and is fixed on the turntable (10). The placement tube (11) is connected to the output shaft of the transverse drive (20) provided on the turntable (10).

5. The automatic roll paper changing device according to claim 2, characterized in that, The outer surface of the placement tube (11) is provided with a bottom edge ring (21), and the end of the snap-fit ​​rod (13) away from the bottom edge ring (21) is provided with a top edge block (22), which can extend out of the placement tube (11).

6. The automatic roll paper changing device according to claim 1, characterized in that, The outer surface of the snap-fit ​​rod (13) is covered with a rubber pad that has the ability to deform.

7. The automatic roll paper changing device according to claim 1, characterized in that, It also includes a fixed strength detection shaft (23), the placement cylinder (11) can rotate to one side of the fixed strength detection shaft (23), and the fixed strength detection shaft (23) is rotatably mounted on the base (24).

8. The automatic roll paper changing device according to claim 7, characterized in that, The base (24) is connected to the drive motor. A cavity (25) is provided between the fixed strength detection shaft (23) and the base (24). A rotating shaft (26) is provided at the end of the fixed strength detection shaft (23). The rotating shaft (26) extends into the cavity (25) and is rotatably connected to the base (24). A torsion spring (27) is provided between the rotating shaft (26) and the inner wall of the cavity (25).

9. The automatic roll paper changing device according to claim 8, characterized in that, The outer surface of the fixed strength testing shaft (23) is covered with a layer of cloth or adhesive.

10. An automatic roll paper changing device according to claim 8, characterized in that, The turntable (10) is provided with four placement cylinders (11) arranged at equal angles. The fixed strength detection shaft (23) is placed horizontally. The placement cylinder (11) at the upper end is the material feeding station, and the placement cylinder (11) at the lower end is the material discharging station. The two horizontally placed placement cylinders (11) are the fixed strength detection station and the film coating station, respectively.

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