A spreading roller

Abstract

The utility model discloses a kind of cloth spreading rollers, it is related to textile field, and its technical scheme main point is: including roller body, left spiral groove and right spiral groove are set on the outer circumferential wall of roller body, the groove bottom of left spiral groove and right spiral groove is equipped with a plurality of flexible strips, the groove bottom of left spiral groove and right spiral groove is equipped with a plurality of thread holes, fixed bolt is threadedly connected in thread hole, a plurality of limit pieces are further arranged in roller body, and limit piece gives the resistance of flexible strip to the center symmetry surface of roller body.The flexible strip is fixed on the roller body by the fixed bolt, so that people can replace flexible strip to ensure the service life of cloth spreading roller, without directly replacing whole roller, the number of flexible strip in two spiral grooves is multiple, so that only damaged flexible strip needs to be replaced, further increase the utilization of material, by setting limit piece, the resistance of flexible strip to the resistance of fabric reaction force can be given, so that the part of flexible strip away from thread hole is more stable.

Description

Technical Field

[0001] This utility model relates to the textile field, and more specifically, to a spreading roller. Background Technology

[0002] Spreading rollers are a common equipment component in industries such as textiles, printing and dyeing, and coating. Their core function is to ensure that materials maintain uniform tension during processing, avoiding wrinkles, shifts, or deformation.

[0003] The spreading roller consists of a roller body and left and right spiral strips fixed on the roller body. During the rotation of the roller body, the part of the fabric in contact with the left spiral strip is pushed to the left, and the part of the fabric in contact with the right spiral strip is pushed to the right, thereby realizing the overall unfolding of the fabric. In order to prevent the spreading roller from damaging the fabric during the spreading process, both the left and right spiral strips are made of flexible materials, such as rubber and silicone. Although flexible materials can protect the fabric, their wear resistance is relatively weak. Therefore, after the left or right spiral strip wears out, the entire spreading roller needs to be replaced. The roller body of the replaced spreading roller itself is intact, and only the flexible material part is worn. The whole replacement results in low material utilization.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a spreading roller.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a spreading roller, including a roller body, wherein a left spiral groove and a right spiral groove are formed on the outer peripheral wall of the roller body, the left spiral groove and the right spiral groove are respectively located on both sides of the central symmetry plane of the roller body, and a plurality of flexible strips are provided on the bottom of the left spiral groove and the right spiral groove, and a plurality of threaded holes are provided on the bottom of the left spiral groove and the right spiral groove, wherein fixing bolts for fixing the two ends of the flexible strips are threadedly connected in the threaded holes, and a plurality of limiting members are also provided in the roller body, the limiting members providing the flexible strips with an abutment force toward the central symmetry plane of the roller body.

[0007] The present invention is further configured such that: both ends of the flexible strip are fixedly connected to rigid columns, the rigid columns are provided with through holes for passing through fixing bolts, the bottom of the left spiral groove and the right spiral groove are provided with grooves for embedding the rigid columns, the depth of the grooves is greater than the length of the rigid columns, and the threaded hole is located at the bottom of the groove.

[0008] The present invention is further configured such that one end of the fixing bolt facing away from the central axis of the roller is accommodated in the left spiral groove or the right spiral groove.

[0009] The present invention is further configured such that: a sliding groove is provided in the roller body, a sliding rod is slidably connected in the sliding groove, one end of the limiting member is connected to the sliding rod, the other end of the limiting member is used to abut against the flexible strip, and one end of the sliding groove is connected to the side wall of the roller body.

[0010] The present invention is further configured such that: a threaded post is threadedly connected to the sliding groove, one end of the slide rod is always in contact with the threaded post, the threaded post is provided at the end near the roller body and a slot is formed at the end of the threaded post away from the slide rod.

[0011] The present invention is further configured such that: a compression spring is provided in the sliding groove, and the compression spring provides a force to the slide rod to move away from the direction of the central symmetry plane of the roller body.

[0012] The present invention is further configured such that friction textures are formed on the inner walls of both the left and right spiral grooves.

[0013] In summary, this utility model has the following beneficial effects:

[0014] The left and right spiral grooves provide space for installing flexible strips. The flexible strips are wound around the corresponding spiral grooves and secured with bolts. These bolts are threaded into the threaded holes and are detachable, allowing the lifespan of the spreading roller to be extended by replacing the flexible strips instead of the entire roller. Since multiple flexible strips are present in each spiral groove, only damaged ones need to be replaced, further increasing material utilization. During operation, the flexible strips in both spiral grooves are subjected to the reaction force of the fabric. This reaction force drives the flexible strips to move away from the central symmetrical plane of the roller. By setting limiting components, the flexible strips are provided with a resistance force against the fabric's reaction force, making the portion of the flexible strip away from the threaded hole more stable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0018] Figure 4 for Figure 2 Enlarged view of section B;

[0019] Figure 5 This is a schematic diagram of the roller body in this utility model.

[0020] In the diagram: 1. Roller body; 2. Left spiral groove; 3. Right spiral groove; 4. Flexible strip; 5. Threaded hole; 6. Fixing bolt; 7. Limiting component; 8. Rigid column; 9. Insert groove; 10. Slide rod; 11. Threaded column; 12. Slotted groove; 13. Compression spring. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] A type of spreading roller, such as Figure 1 and Figure 2 As shown, the roller body 1 has two spiral grooves on its outer peripheral wall, namely a left spiral groove 2 and a right spiral groove 3. The left spiral groove 2 and the right spiral groove 3 are located on both sides of the central symmetry plane of the roller body 1, and the distance from the central symmetry plane of the roller body 1 to both ends of the roller body 1 is equal. Several flexible strips 4 are provided on the bottom of both the left spiral groove 2 and the right spiral groove 3, and several threaded holes 5 are provided on the bottom of both the left spiral groove 2 and the right spiral groove 3. The number of threaded holes 5 on the roller body 1 is twice the number of flexible strips 4. Fixing bolts 6 for fixing the ends of the flexible strips 4 are threaded into the threaded holes 5. Several limiting members 7 are also provided inside the roller body 1. The limiting members 7 provide a resisting force on the flexible strips 4 towards the central symmetry plane of the roller body 1. In this embodiment, the number of flexible strips 4 in both the left spiral groove 2 and the right spiral groove 3 is three. The arrangement of the left spiral groove 2 and the right spiral groove 3 provides space for people to install the flexible strips 4. People can install the flexible strips 4 by wrapping them around the roller body 1. The flexible strips 4 are fixed in the corresponding spiral grooves using fixing bolts 6. The threaded connection of the fixing bolts 6 in the threaded holes 5 is detachable, allowing the life of the spreading roller to be extended by replacing the flexible strips 4 without replacing the entire roller. There are multiple flexible strips 4 in both spiral grooves, so only the damaged ones need to be replaced, further increasing the material utilization rate. During the operation of the spreading roller, the flexible strips 4 in both spiral grooves are subjected to the reaction force of the fabric. The reaction force drives the flexible strips 4 to move away from the central symmetrical plane of the roller body 1. By setting the limiting component 7, the flexible strips 4 can be given a resistance force against the reaction force of the fabric, making the part of the flexible strips 4 away from the threaded holes 5 more stable. Friction textures are opened on the inner walls of the left spiral groove 2 and the right spiral groove 3. The setting of friction textures increases the friction coefficient of the inner wall of the spiral groove, making the flexible strips 4 more stable under the action of the resistance force of the limiting component 7, and less likely to detach from the spiral groove.

[0023] like Figure 2 , Figure 3 and Figure 5As shown, both ends of the flexible strip 4 are fixedly connected to rigid columns 8. The rigid columns 8 have through holes for passing through the fixing bolts 6. The bottom of the left spiral groove 2 and the right spiral groove 3 are both provided with grooves 9 for embedding the rigid columns 8. The threaded hole 5 is located at the bottom of the groove 9. After the fixing bolt 6 passes through the flexible strip 4, it enters the through hole of the rigid column 8 and is then threaded into the threaded hole 5, thus completing the fixation of one end of the flexible strip 4. The rigid column 8 is rigid and therefore does not easily deform when inserted into the groove 9, and can support the bolt head of the fixing bolt 6. The depth of the groove 9 is greater than the length of the rigid column 8, so that the rigid column 8 will not be exposed on the surface of the roller body 1, ensuring that the part in contact with the fabric is always part of the flexible strip 4. The rigid column 8 is made of plastic material. The end of the fixing bolt 6 facing away from the central axis of the roller body 1 is accommodated in the left spiral groove 2 or the right spiral groove 3. The fixing bolt 6 is not exposed in the spiral groove, so that no matter how the flexible strip 4 deforms in the direction of the roller body 1, the fabric is not easy to contact the rigid fixing bolt 6, thus ensuring the overall integrity of the fabric.

[0024] like Figure 2 and Figure 4 As shown, a sliding groove is provided inside the roller body 1, and a sliding rod 10 is slidably connected inside the sliding groove. The sliding groove is set along the length direction of the roller body 1. One end of the limiting member 7 is connected to the sliding rod 10, and the other end of the limiting member 7 is used to abut against the flexible strip 4. One end of the sliding groove is connected to the side wall of the roller body 1. Several left connecting grooves connected to one of the sliding grooves are opened on the inner wall of the left spiral groove 2, and several right connecting grooves connected to the other sliding groove are opened on the inner wall of the right spiral groove 3. The limiting member 7 is located in the left connecting groove or the right connecting groove. By driving one sliding rod 10 to move, the limiting member 7 in the left spiral groove 2 can be moved. By driving another sliding rod 10 to move, the limiting member 7 in the right spiral groove 3 can be moved. This setting facilitates the control of the limiting member 7. The large number of limiting members 7 ensures the stability of the flexible strip 4. A threaded post 11 is threadedly connected inside the sliding groove. One end of the slide rod 10 is always in contact with the threaded post 11. The threaded post 11 is located at the end near the roller body 1 and has a slot 12 at the end away from the slide rod 10. By rotating the threaded post 11, the threaded post 11 moves in contact with the slide rod towards the central symmetry plane of the roller body 1. The slot 12 facilitates the movement of the threaded post 11 by using a slotted screw. A compression spring 13 is provided in the sliding groove. The compression spring 13 provides a force to the slide rod 10 to move away from the central symmetry plane of the roller body 1. When it is necessary to replace the flexible strip 4, the threaded post 11 can be moved away from the central symmetry plane of the roller body 1. At this time, the elastic force of the compression spring 13 is released, which can push the slide rod 10 to move away from the central symmetry plane of the roller body 1. The movement of the slide rod 10 can drive the movement of the limiting member 7, thereby eliminating the contact force between the limiting member 7 and the flexible strip 4, making it easy to disassemble the flexible strip 4.

[0025] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A spreading roller, characterized in that: The roller body (1) includes a left spiral groove (2) and a right spiral groove (3) on its outer peripheral wall. The left spiral groove (2) and the right spiral groove (3) are located on both sides of the central symmetry plane of the roller body (1). The bottom of the left spiral groove (2) and the right spiral groove (3) are provided with several flexible strips (4). The bottom of the left spiral groove (2) and the right spiral groove (3) are provided with several threaded holes (5). The threaded holes (5) are threaded with fixing bolts (6) for fixing the two ends of the flexible strips (4). The roller body (1) is also provided with several limiting members (7). The limiting members (7) give the flexible strips (4) a resisting force toward the central symmetry plane of the roller body (1).

2. The spreading roller according to claim 1, characterized in that: Both ends of the flexible strip (4) are fixedly connected to rigid columns (8). The rigid columns (8) have through holes for passing through the fixing bolts (6). The bottom of the left spiral groove (2) and the right spiral groove (3) are provided with grooves (9) for embedding the rigid columns (8). The depth of the grooves (9) is greater than the length of the rigid columns (8). The threaded hole (5) is located at the bottom of the grooves (9).

3. A spreading roller according to claim 1, characterized in that: One end of the fixing bolt (6) facing away from the central axis of the roller body (1) is accommodated in the left spiral groove (2) or the right spiral groove (3).

4. A spreading roller according to claim 1, characterized in that: The roller body (1) is provided with a sliding groove, and a sliding rod (10) is slidably connected in the sliding groove. One end of the limiting member (7) is connected to the sliding rod (10), and the other end of the limiting member (7) is used to abut against the flexible strip (4). One end of the sliding groove is connected to the side wall of the roller body (1).

5. A spreading roller according to claim 4, characterized in that: The sliding groove is threaded with a threaded column (11), and one end of the slide rod (10) is always in contact with the threaded column (11). The threaded column (11) is set at one end close to the roller body (1), and a slot (12) is opened at the other end of the threaded column (11) away from the slide rod (10).

6. A spreading roller according to claim 5, characterized in that: A compression spring (13) is provided in the sliding groove, and the compression spring (13) gives the slide bar (10) a force to move away from the central symmetry plane of the roller body (1).

7. A spreading roller according to claim 1, characterized in that: Friction patterns are formed on the inner walls of both the left spiral groove (2) and the right spiral groove (3).

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