Roller device

Abstract

The application discloses a roller device, comprising a plurality of sub-roller units, the sub-roller unit comprising a sleeve roller, at least one side of the sleeve roller being installed on a support frame through a bearing, the movement of the support frame driving the movement of the sleeve roller; the sleeve roller is a hollow roller, the sleeve roller being connected with the outer ring of the bearing, and the inner ring of the bearing being connected with the support frame; the support frame is provided with an avoiding hole, a rotating rod being inserted into the sleeve roller of each sub-roller unit through the avoiding hole; in the sleeve roller, the rotating rod is provided with a driving connecting piece, the driving connecting piece being connected with the inner side of the sleeve roller, and the rotating rod driving the sleeve roller to rotate along the bearing through the driving connecting piece; the position change of the sleeve roller of the sub-roller unit can adjust the tension of the front and rear garment pieces, and the selective pulling of the fabric can be realized according to the fabric requirements; the position change of the rotating rod in the sleeve roller can still drive the sleeve roller to rotate through the driving connecting piece, the use of the motor is reduced, the cost is low, and the control is simple.

Description

Technical Field

[0001] This invention relates to a roller device used to pull fabrics on a computerized flat knitting machine, belonging to the technical field of computerized flat knitting machines. Background Technology

[0002] Patent document CN112941714A discloses a roller device, which consists of several sub-roller units and a mounting component. The sub-roller units are mounted on the mounting component. Each sub-roller unit includes a mounting base, which is mounted on the mounting component. Supporting spacers are mounted at both ends of the mounting base, and the supporting spacers are rotatably mounted on the mounting base or the mounting component. A sleeve roller is installed between the supporting spacers, and the sleeve roller rotates on the supporting spacers by a motor. An adjusting device is installed on the mounting base, which is used to drive the supporting spacers to rotate along the mounting base, thereby adjusting the position of the sleeve roller. Another disclosed embodiment: The roller device comprises several sub-roller units and a mounting component, the sub-roller units being mounted on the mounting component; each sub-roller unit includes a mounting base, which is mounted on the mounting component; two support partitions are located above the mounting base, and a sheath roller is installed between the support partitions, the sheath roller being driven by a motor to rotate on the support partitions; the two support partitions are adjusted by an adjusting device to achieve translational movement relative to the mounting base, thereby adjusting the position of the sheath roller on the support partitions. This roller device structure allows for adjustment of the tension of the front and rear garment pieces during garment weaving according to fabric requirements; it also enables selective tensioning of the fabric based on fabric specifications.

[0003] Compared to traditional rollers, the rollers disclosed above consist of several sub-roller units. The sleeve rollers of each sub-roller unit can oscillate or translate independently. Consequently, the axes of the sleeve rollers of different sub-roller units are often different. Therefore, each independent sleeve roller of a sub-roller unit requires a separate motor for driving, and multiple sub-roller units require the same number of motors. This structure results in a large demand for motors, high cost, and complex control. Summary of the Invention

[0004] The purpose of this invention is to provide a roller device that uses a single power source to drive the rotation of multiple sub-roller unit sleeve rollers.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A roller assembly includes several sub-roller units, each sub-roller unit comprising a sleeve roller. At least one side of the sleeve roller is mounted on a support frame via a bearing. Movement (translation or oscillation) of the support frame drives movement (translation or oscillation) of the sleeve roller. The sleeve roller is a hollow roller (the hollow interior is used to install a rotating rod and a drive connector). The sleeve roller is connected to the outer ring of a bearing, and the inner ring of the bearing is connected to the support frame (alternatively, the sleeve roller can be connected to the inner ring of the bearing, and the outer ring of the bearing can be connected to the support frame; this is simply an equivalent replacement). Each sub-roller unit is connected to a rotating rod. The support frame has clearance holes through which the rotating rod is inserted into the sleeve roller of each sub-roller unit. Within the sleeve roller of each sub-roller unit, the rotating rod has a drive connector connected to the inner side of the corresponding sleeve roller. The rotating rod rotates within the sleeve roller, driving the sleeve roller to rotate along the bearing via the drive connector.

[0007] A drive connector is a type of component that has the following functions: the position of the rotating rod is fixed, the position of the sleeve roller changes when the support frame moves and drives the sleeve roller to move, the position of the rotating rod changes within the sleeve roller, and the rotation of the rotating rod can drive the sleeve roller to rotate along the bearing through the drive connector.

[0008] Since the position of the rotating rod remains fixed, the rotating rod, as a power source, can drive the sleeve rollers of multiple sub-roller units to rotate. Even if the position of the sleeve rollers changes, due to the connection of the drive connector, the rotating rod can always drive the sleeve rollers to rotate along the bearing.

[0009] The drive connector can be a telescopic structure, comprising a mounting base (which can be understood as a section of the telescopic structure). The mounting base is mounted on a rotating rod and has a stepped hole. A T-shaped rod is installed within the stepped hole, with its tail end positioned within the stepped hole. The head end of the T-shaped rod extends through the stepped hole and connects to the inner side of the sleeve roller. A spring is provided between the tail end of the T-shaped rod and the rotating rod within the stepped hole. When the distance between the rotating rod and the inner side of the sleeve roller (where the tail end of the T-shaped rod connects) is small, the T-shaped rod compresses the spring within the mounting base, causing the rotating rod to rotate and thus the T-shaped rod rotates, which in turn causes the sleeve roller to rotate. When the distance between the rotating rod and the inner side of the sleeve roller (where the tail end of the T-shaped rod connects) increases, the T-shaped rod extends under the action of the spring and is simultaneously positioned by the inner side of the sleeve roller. The rotating rod then rotates, causing the T-shaped rod to rotate, which in turn causes the sleeve roller to rotate.

[0010] Similarly, the structure can also be as follows: the drive connector includes a mounting base, which is mounted on the rotating rod. The mounting base has a telescopic hole, and a slide rod is installed in the telescopic hole. The head end of the slide rod extends out of the mounting base and connects to the inner side of the sleeve roller. A limit hole is provided on the mounting base, and a limit rod is provided in the limit hole. The limit rod is connected to the slide rod in the telescopic hole, and the limit rod restricts the telescopic position of the slide rod in the telescopic hole. A spring is provided between the slide rod and the rotating rod in the telescopic hole.

[0011] The drive connector can also be a linkage structure, in which case the drive connector is at least one set of linkage mechanisms. Specifically, the linkage mechanism includes two links connected together. When the distance between the rotating rod and the inner side of the sleeve roller is small, the linkage mechanism folds, the rotating rod rotates to drive the linkage mechanism to rotate, and the linkage mechanism drives the sleeve roller to rotate; when the distance between the rotating rod and the inner side of the sleeve roller increases, the linkage mechanism extends and becomes longer, the rotating rod rotates to drive the linkage mechanism to rotate, and the linkage mechanism drives the sleeve roller to rotate.

[0012] The specific structural design of the drive connector is not limited to the two mentioned above. As long as the above functions can be achieved, when the rotating rod rotates and the distance between the rotating rod and the inner side of the sleeve roller changes, the rotating rod can always drive the sleeve roller to rotate along the bearing through the drive connector.

[0013] For structural stability, the two ends of the sheath roller are mounted on two support frames via bearings. Specifically, the left end of the sheath roller is mounted on the left support frame via a left bearing, and the left end of the sheath roller is connected to the outer ring of the left bearing, while the inner ring of the left bearing is connected to the left support frame. The right end of the sheath roller is mounted on the right support frame via a right bearing, and the right end of the sheath roller is connected to the outer ring of the right bearing, while the inner ring of the right bearing is connected to the right support frame.

[0014] The movement (e.g., translation or oscillation) of the support frame and its sheathed rollers is prior art and will not be elaborated upon in this invention. When the support frame translates, the rotating rod moves horizontally within the clearance hole, which is either oblong or rectangular. When the support frame oscillates, the rotating rod moves in an arc within the clearance hole, which is also arc-shaped.

[0015] Preferably, the rotating rod is driven to rotate by a motor.

[0016] The roller device of this invention includes several sub-roller units. The movement (translation or oscillation) of the support frame of any one sub-roller unit drives the movement (translation or oscillation) of the sleeve roller. During garment weaving, the position of the sleeve roller of the sub-roller unit changes, allowing adjustment of the tension of the front and rear garment pieces. This enables selective stretching of the fabric according to fabric requirements. Furthermore, even if the position of the rotating rod within the sleeve roller changes, the sleeve roller can still be driven to rotate along the bearing via the drive connector. In other words, a single power source drives the rotation of the sleeve rollers of multiple sub-roller units. This avoids requiring a separate motor for each sub-roller unit, reducing motor usage, lowering costs, and simplifying control. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the roller device of the present invention.

[0019] Figure 2 This is a schematic diagram of the sub-roller unit and the rotating rod.

[0020] Figure 3 This is a schematic diagram of the interior of the sub-roller unit.

[0021] Figure 4 This is a schematic diagram of a drive connector component.

[0022] Figure 5 for Figure 4 A schematic diagram of the drive connector mounted on the rotating rod.

[0023] Figure 6 For the sub-roller unit, rotating rod and Figure 4 Schematic diagram of the installation of the drive connector.

[0024] Figure 7 To and Figure 4 A schematic diagram of a drive connector component based on the same principle.

[0025] Figure 8 for Figure 7 Installation diagram of the drive connector.

[0026] Figure 9 This is a schematic diagram of another type of drive connector. Detailed Implementation

[0027] like Figure 1-9 As shown, the roller assembly includes several sub-roller units 1, such as... Figure 2As shown, the sub-roller unit 1 includes a sleeve roller 5, at least one side of which is mounted on a support frame via bearings. The movement (translation or oscillation) of the support frame drives the sleeve roller 5 to move (translation or oscillation). Specifically, one end of the sleeve roller 5 is mounted on one support frame, and the other end is mounted on another support frame.

[0028] The movement (translation or oscillation) of the support frame, which drives the movement of the sleeve roller 5, is existing technology. For example, patent document CN112941714A discloses a support partition (i.e., the support frame) that is driven to rotate along the mounting base by an adjustment device, thereby adjusting the position of the sleeve roller. Alternatively, the support partition, through adjustment by the adjustment device, achieves translational movement relative to the mounting base, adjusting the position of the sleeve roller on the support partition. This structure is as follows... Figure 3 , 6 As shown, the left support frame 3 and the right support frame 4 are mounted on the mounting base 9. The mounting base 9 is mounted on the base 10 via a guide rail. The base 10 is equipped with a lead screw driven by a motor 15. The nut of the lead screw is connected to the mounting base 9. The rotation of the lead screw drives the mounting base 9 to move horizontally on the base 10. That is, when the mounting base 9 moves horizontally, the left support frame 3, the right support frame 4, and the leather roller 5 on it also move horizontally.

[0029] like Figure 2 , 6 As shown, the sleeve roller 5 is a hollow roller, which can be composed of a roller and an outer roller sleeve, or it can be an integral piece. In this case, the left end of the sleeve roller 5 is mounted on the left support frame 3 via a left bearing, and the left end of the sleeve roller 5 is connected to the outer ring of the left bearing, while the inner ring of the left bearing is connected to the left support frame 3. The right end of the sleeve roller 5 is mounted on the right support frame 4 via a right bearing, and the right end of the sleeve roller 5 is connected to the outer ring 6 of the right bearing, while the inner ring 7 of the right bearing is connected to the right support frame 4.

[0030] Several sub-roller units 1 are connected to a rotating rod 2, one end of which is driven to rotate by a motor. Specifically, the left support frame 3 and the right support frame 4 are provided with clearance holes 8. Depending on the movement mode of the support frame, the clearance holes can be oblong or rectangular (when the support frame translates), or arc-shaped (when the support frame swings). The rotating rod 2 is inserted into the sleeve roller 5 of each sub-roller unit 1 through the clearance holes 8. Inside the sleeve roller 5 of each sub-roller unit 1, the rotating rod 2 is provided with a drive connector. The drive connector is connected to the inner side of the corresponding sleeve roller 5. The rotating rod 2 rotates inside the sleeve roller 5, driving the sleeve roller 5 to rotate along the left and right bearings through the drive connector.

[0031] In one implementation method, the drive connector is a telescopic structure, such as... Figure 4 , 5As shown, the drive connector includes a mounting base 11 (the mounting base 11 can be understood as a section of the telescopic structure). The mounting base 11 is mounted on the rotating rod 2. The mounting base 11 has a stepped hole 12. A T-shaped rod 13 is installed in the stepped hole 12. The tail end of the T-shaped rod 13 is limited and installed in the stepped hole 12. The head end of the T-shaped rod 13 extends out of the mounting base 11 through the stepped hole 12 and connects to the inner side of the sleeve roller 5. A spring 14 is provided between the tail end of the T-shaped rod 13 and the rotating rod 2 in the stepped hole 12. When the sleeve roller 5 moves and the rotating rod 2 is in an eccentric position inside the sleeve roller 5, the distance between the rotating rod 2 and the inner side of the sleeve roller 5 (where the tail end of the T-shaped rod 13 is connected) varies with the rotation of the rotating rod 2 at the position of the T-shaped rod 13. When the distance between the rotating rod 2 and the inner side of the sleeve roller 5 (where the T-shaped rod 13 is connected) is small, the T-shaped rod 13 is compressed and retracted into the mounting base 11. The rotation of the rotating rod 2 drives the T-shaped rod 13 to rotate, and the T-shaped rod 13 drives the sleeve roller 5 to rotate. When the distance between the rotating rod 2 and the inner side of the sleeve roller 5 (where the T-shaped rod 13 is connected) increases, the T-shaped rod 13 extends under the action of the spring 14 and is simultaneously limited by the inner side of the sleeve roller 5. The rotation of the rotating rod 2 drives the T-shaped rod 13 to rotate, and the T-shaped rod 13 drives the sleeve roller 5 to rotate.

[0032] Implementation methods with the same mechanism as described above: such as Figure 7 , 8As shown, the drive connector includes a mounting base 17, which is mounted on the rotating rod 2. The mounting base 17 has a telescopic hole 18, and a slide rod 19 is installed in the telescopic hole 18. The head end of the slide rod 19 extends out of the mounting base 17 and connects to the inner side of the sleeve roller 5. A limiting hole 20 is provided on the mounting base 17, and a limiting rod 21 is provided in the limiting hole 20. The limiting rod 21 is connected to the slide rod 19 in the telescopic hole 18. The limiting rod 21 restricts the telescopic length of the slide rod 19 in the telescopic hole 18. That is, the limiting hole 20 blocks the limiting rod 21, so that the limiting rod 21 can only move within the range of the limiting hole 20. Since the limiting rod 21 is connected to the slide rod 19 in the telescopic hole 18, the telescopic length of the slide rod 19 is limited. A spring 22 is provided between the slide rod 19 and the rotating rod 2 in the telescopic hole 18. When the slide rod 19 contracts, the spring 22 deforms, so that the slide rod 19 has the force to extend. When the sleeve roller moves and the rotating rod 2 is in an eccentric position inside the sleeve roller 5, the distance between the rotating rod 2 and the inner side of the sleeve roller 5 (the connection point at the tail end of the slide rod 19) changes with the rotation of the rotating rod 2. When the distance between the rotating rod 2 and the inner side of the sleeve roller 5 (the connection point at the tail end of the slide rod 19) is small, the slide rod 19 compresses the spring 22 and retracts into the mounting base 17. The rotation of the rotating rod 2 drives the slide rod 19 to rotate, and the slide rod 19 drives the sleeve roller 5 to rotate. When the distance between the rotating rod 2 and the inner side of the sleeve roller 5 (the connection point at the tail end of the slide rod 19) increases, the slide rod 19 extends under the action of the spring 14 and is simultaneously limited by the inner side of the sleeve roller 5. The rotation of the rotating rod 2 drives the slide rod 19 to rotate, and the slide rod 19 drives the sleeve roller 5 to rotate.

[0033] As another implementation method, such as Figure 9 As shown, the drive connector can also be a linkage structure, in which case the drive connector is at least one set of linkage mechanisms, such as... Figure 9 The three sets are shown. Specifically, the linkage mechanism includes two connecting rods 16 connected together. When the sleeve roller 5 moves and the rotating rod 2 is in an eccentric position inside the sleeve roller 5, the distance between the rotating rod 2 and the inner side of the sleeve roller 5 varies with the rotation of the rotating rod 2 at the installation position of the linkage mechanism. When the distance between the rotating rod 2 and the inner side of the sleeve roller 5 is small, the two connecting rods 16 of the linkage mechanism fold, the rotation of the rotating rod 2 drives the folded linkage mechanism, and the linkage mechanism drives the sleeve roller 5 to rotate; when the distance between the rotating rod 2 and the inner side of the sleeve roller 5 increases, the two connecting rods 16 of the linkage mechanism extend and become longer, the rotation of the rotating rod 2 drives the linkage mechanism to rotate, and the linkage mechanism drives the sleeve roller 5 to rotate.

[0034] In this way, whether the rotating rod 2 is at the axis of the sleeve roller 5 or in an eccentric position within the sleeve roller 5, the rotating rod 2 can drive the sleeve roller 5 to rotate along the bearing through the drive connector. The specific structural design of the drive connector is not limited to the above-mentioned types.

[0035] The above embodiments do not limit the present invention in any way. All technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A roller device, characterized in that... The system includes several sub-roller units, each sub-roller unit comprising a sleeve roller. At least one side of the sleeve roller is mounted on a support frame via a bearing. Movement of the support frame drives movement of the sleeve roller. The sleeve roller is a hollow roller, connected to the outer ring of the bearing, and the inner ring of the bearing is connected to the support frame. Each sub-roller unit is connected to a rotating rod. The support frame has clearance holes through which the rotating rod is inserted into the sleeve roller of each sub-roller unit. Within the sleeve roller of each sub-roller unit, the rotating rod has a drive connector connected to the inner side of the corresponding sleeve roller. The rotating rod rotates within the sleeve roller, driving the sleeve roller to rotate along the bearing via the drive connector. The rotating rod is driven to rotate by a motor. The drive connector includes a mounting base, which is mounted on a rotating rod. The mounting base has a stepped hole, and a T-shaped rod is installed in the stepped hole. The tail end of the T-shaped rod is limited and installed in the stepped hole. The head end of the T-shaped rod extends out of the mounting base through the stepped hole and connects to the inner side of the sheath roller. A spring is provided between the tail end of the T-shaped rod and the rotating rod in the stepped hole. Alternatively, the drive connector may include a mounting base mounted on a rotating rod. The mounting base has a telescopic hole, and a sliding rod is installed within the telescopic hole. The head end of the sliding rod extends out of the mounting base and connects to the inner side of the sheath roller. A limiting hole is provided on the mounting base, and a limiting rod is provided within the limiting hole. The limiting rod is connected to the sliding rod within the telescopic hole, and the limiting rod restricts the telescopic position of the sliding rod within the telescopic hole. A spring is provided between the sliding rod and the rotating rod within the telescopic hole.

2. The roller device according to claim 1, characterized in that: The left end of the sheath roller is mounted on the left support frame via a left bearing. The left end of the sheath roller is connected to the outer ring of the left bearing, and the inner ring of the left bearing is connected to the left support frame. The right end of the sheath roller is mounted on the right support frame via a right bearing. The right end of the sheath roller is connected to the outer ring of the right bearing, and the inner ring of the right bearing is connected to the right support frame.

3. The roller device according to claim 1, characterized in that: The clearance hole is either oblong or rectangular.

4. The roller device according to claim 1, characterized in that: The clearance hole is arc-shaped.

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