Positioning roller structure suitable for seamless fabric

Abstract

The utility model relates to a positioning roller structure suitable for seamless fabrics, which comprises a roller group consisting of a plurality of positioning rollers, each positioning roller is provided with a needle surface for positioning fabrics, and at least one positioning roller in the roller group is movably connected onto a machine body. The arrangement mode of the roller sets includes that the roller sets are arranged in the same horizontal plane in a linear array mode, and the roller sets are arranged in the same vertical plane in a circumferential array mode. And in a circumferential array state, at least two positioning rollers are in the same horizontal plane and are parallel to the dye jet printing surface. The positioning device is particularly suitable for positioning and synchronous rotation of seamless elastic fabric, the surface of the positioning roller is provided with a friction surface, and absolute synchronous transmission can be ensured under the condition of various roller set designs.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing machine technical field, especially a positioning roller structure suitable for seamless fabric. BACKGROUND

[0002] Printing of seamless fabric has been an industry problem. Since seamless fabric has no sewing line, it is difficult to find a positioning point, so it is difficult to find the starting point and the end point of jet printing when loading and positioning the seamless fabric, resulting in the problems of difficult printing positioning and high defect rate of printing products.

[0003] Especially the commonly used positioning roller, in order to facilitate loading and unloading, the surface of the positioning roller is made into a smooth surface to reduce the friction of loading and unloading, which causes the fabric to move easily on the surface of the positioning roller during transmission and jet printing, affecting the jet printing effect. SUMMARY

[0004] In view of the above-mentioned shortcomings of the existing production technology, the present application provides a positioning roller structure suitable for seamless fabric with reasonable structure, and a printing machine with a friction resistance positioning roller. The needle surface of the positioning roller provides a gripping force without damaging the fabric. The movable structure of the positioning roller can tension fabrics of various sizes, and cooperates with the needle surface friction surface to ensure that the fabric and the positioning roller are absolutely synchronous transmission.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A positioning roller structure suitable for seamless fabric, comprising a roller group composed of a plurality of positioning rollers, each positioning roller having a needle surface for positioning the fabric, at least one positioning roller in the roller group being movably connected to the machine body,

[0007] The arrangement mode of the roller group includes linear array arrangement in the same horizontal plane and circumferential array arrangement in the same vertical plane. In the circumferential array state, at least two positioning rollers are in the same horizontal plane and parallel to the dye jet printing surface.

[0008] As a further improvement of the above technical scheme:

[0009] The positioning needle surface comprises a plurality of positioning needles evenly distributed on the outer circular surface of the positioning roller, and each positioning needle is bent.

[0010] All the positioning needles are bent in the same direction.

[0011] The needle tips of all the positioning needles are located in the same circumferential surface, and the circumferential surface where the needle tips are located is the positioning friction surface.

[0012] The movable connection structure of the positioning roller comprises:

[0013] A motor is installed on the machine body,

[0014] A slide rail is installed on the machine body,

[0015] A screw rod is arranged along the slide rail and is driven by the motor,

[0016] A slide block is arranged on the slide rail and is threadedly connected with the screw rod and is driven by the screw rod.

[0017] Each positioning roller has an independent rotating power source, and the power source moves with the positioning roller.

[0018] In the circumferential array state of the roller group, the center position is a blank position.

[0019] The beneficial effects of the utility model are as follows:

[0020] The positioning roller provided by the utility model has multiple arrangement modes, including arranging a plurality of positioning rollers in the horizontal direction or arranging a plurality of positioning rollers in the circumferential direction, and any several positioning rollers can be selected to tension the fabric. The arrangement mode of the multiple positioning rollers can adapt to fabrics of different sizes, and theoretically, only one displacement of the positioning rollers is needed to change the tension on the fabric, so that the positioning rollers are not required to be all configured with power structures, the positioning rollers can be disassembled and installed according to actual needs, and the production cost can be effectively controlled.

[0021] The utility model is especially suitable for positioning and synchronous rotation of seamless elastic fabric, the surface of the positioning roller is provided with a friction surface, absolute synchronous transmission can be ensured in the case of multiple roller group designs, and the seamless elastic fabric of various specifications can be adapted. DRAWINGS

[0022] Figure 1 It is a schematic diagram of the whole machine structure of the utility model.

[0023] Figure 2 It is another angle schematic diagram of the whole machine structure of the utility model.

[0024] Figure 3 It is a schematic diagram of the roller part of the utility model. Figure 1 And Figure 2 In order to avoid that the image is too dense and affects reading, only part of the positioning needle is marked.

[0025] Figure 4 It is a schematic diagram of a positioning needle structure of the utility model.

[0026] Figure 5 It is a schematic diagram of the positioning needle arranged in the designated surface of the utility model.

[0027] Figure 6 It is one arrangement mode of the positioning roller, which is linearly arranged in the horizontal plane.

[0028] Figure 7This is another arrangement of the positioning rollers, which are arranged on the inner circumference of the vertical plane.

[0029] Figure 8 This is the third arrangement of positioning rollers. On the basis of the horizontal arrangement, more positioning rollers are added in the vertical plane to adapt to large-sized fabrics.

[0030] Wherein: 1. Machine body; 2. Printhead; 3. Positioning roller; 4. Positioning needle; 5. Motor; 6. Slide rail; 7. Lead screw; 8. Slider; 9. Rotation power source;

[0031] 401, extension section; 402, bending section; 403, tip. DETAILED DESCRIPTION

[0032] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0033] like Figures 1-8 As shown, the positioning roller 3 cylinder structure applicable to the seamless fabric of this embodiment includes a roller group consisting of a plurality of positioning rollers 3, each positioning roller 3 has a needle surface for positioning the fabric, and at least one positioning roller 3 in the roller group is movably connected to the machine body 1.

[0034] The arrangement of the roller groups includes linear array arrangement in the same horizontal plane and circular array arrangement in the same vertical plane; in the circular array state, at least two positioning rollers 3 are in the same horizontal plane and parallel to the dye printing surface.

[0035] The positioning needle 4 surface includes a plurality of positioning needles 4 evenly distributed on the outer circumferential surface of the positioning roller 3 , and each positioning needle 4 is bent.

[0036] All the positioning pins 4 are bent in the same direction.

[0037] The needle tips of all the positioning needles 4 are located in the same circumferential surface, and the circumferential surface where the needle tips are located is the positioning friction surface.

[0038] The movable connection structure of the positioning roller 3 includes:

[0039] Motor 5, mounted on the fuselage 1,

[0040] The slide rail 6 is mounted on the fuselage 1.

[0041] The lead screw 7 is arranged along the slide rail 6 and is driven by the motor 5.

[0042] The slider 8 falls on the slide rail 6, is threadedly connected to the lead screw 7, and is driven by the lead screw 7.

[0043] Each positioning roller 3 is provided with an independent rotation power source 9 , and the power source moves along with the positioning roller 3 .

[0044] When the roller group is in a circular array state, the center position is a blank position.

[0045] The specific structure and working principle of the utility model are as follows:

[0046] The utility model provides two kinds of roll group design of arrangement mode, including roll group design of linear array setting, roll group design of circumferential array.

[0047] As Figures 3-5 Each positioning roller surface is provided with a friction surface, and the friction surface is composed of a plurality of positioning needles, each of which is bent to prevent the needle tip from directly piercing the fabric or penetrating into the fabric loops. The friction surface composed of the needle tips of the plurality of positioning needles tends to be a circumferential surface, which can provide a gripping force for rough surfaces such as fabrics without causing tearing damage to the fabric.

[0048] Conventional clothing such as seamless underwear generally uses two positioning rollers arranged in the same horizontal plane to meet the positioning requirements. During use, one of the positioning rollers moves relative to the other positioning roller to reduce the distance between them, making it easier for the fabric to be fitted on the two positioning rollers. Then the positioning rollers are reset to tension the fabric. At this time, the friction surface on the surface of the positioning roller exerts a gripping force on the fabric, and the fabric and the positioning roller can rotate absolutely synchronously, thereby facilitating the positioning of the initial position and the end of rotation of the fabric, and improving the printing accuracy.

[0049] As Figure 1 And Figure 2 The displacement of the positioning roller can be achieved by setting a cylinder on the slide rail, the cylinder driving the positioning roller, or the lead screw pushing the positioning roller. As an optional way, the motor drives the lead screw in this embodiment, and the lead screw pushes and pulls the end of the positioning roller to move back and forth along the slide rail, achieving the reciprocating motion of one positioning roller. In most working conditions, as Figure 6 The structure of the two positioning rollers is the most commonly used and relatively cost-effective structure, so in the case of two positioning rollers, only one positioning roller needs to be pushed by the lead screw.

[0050] In combination with reference Figures 6-8 If the size of the seamless fabric is larger, multiple positioning rollers can be arranged in the same horizontal plane, or the distance between the positioning rollers can be increased. Similarly, in this way, at least one movable positioning roller can also achieve the purpose of facilitating feeding and discharging.

[0051] As another optional way, as Figure 7 And Figure 8As shown, when printing large seamless fabric, multiple positioning rollers can also be arranged in a circle, which can significantly reduce the width of the device in the horizontal plane, and can tension larger size fabric. In the circularly arranged positioning rollers, two of them can be used to tension the fabric, three of them can be used to tension the fabric, or all of them can be used to tension the fabric. It should be noted that the positioning rollers arranged in a circle should leave a blank at the center position, without positioning rollers, in order to prevent too many positioning rollers from causing inconvenience in moving the positioning rollers or loading and unloading the fabric; during fabric transmission, the action point of the tensioning force is more concentrated and is not affected by too many friction surfaces.

[0052] The above-mentioned several roller group design methods also have the advantage of not needing a tensioning roller. Generally, such a structure similar to synchronous transmission may have a local loosening phenomenon, and a tensioning roller is needed to adjust the tensioning degree. However, the positioning rollers in the present application can move and adjust the tensioning by themselves, and the friction surface has reliable gripping force, so that the phenomenon of belt slipping and fabric sliding due to local loosening does not occur, and therefore, the tensioning roller in the traditional printing and dyeing is omitted, and if it is a small device, it is more conducive to simplifying the structure.

[0053] The above description is an explanation of the present application, not a limitation of the present application, and the scope of the present application is defined in the claims. Within the protection scope of the present application, any form of modification can be made.

Claims

1. A structure of positioning cylinders for seamless fabric, comprising a cylinder group consisting of a number of positioning cylinders (3), characterized in that: Each positioning roller (3) is provided with a needle surface for positioning the fabric, and at least one positioning roller (3) in the roller group is movably connected to the machine body (1), The arrangement of the roller group includes linear array arrangement in the same horizontal plane and circumferential array arrangement in the same vertical plane; in the circumferential array state, at least two positioning rollers (3) are arranged in the same horizontal plane and parallel to the dye jet printing surface.

2. The seamless fabric applicable positioning roller structure according to claim 1, characterized in that: The needle surface for positioning the fabric includes a plurality of positioning needles (4) uniformly distributed on the outer surface of the positioning roller (3), and each positioning needle (4) is arranged in a bent manner.

3. The seamless fabric applicable positioning roller structure according to claim 2, characterized in that: All the positioning needles (4) are bent in the same direction.

4. The seamless fabric applicable positioning roller structure according to claim 2, wherein: The needle tips of all the positioning needles (4) are located in the same circumferential surface, and the circumferential surface on which the needle tips are located is the positioning friction surface.

5. The seamless fabric applicable positioning roller structure according to claim 1, characterized in that: The movable connection structure of the positioning roller (3) includes: A motor (5) mounted on the machine body (1), A slide rail (6) mounted on the machine body (1), A lead screw (7) arranged along the slide rail (6) and driven by the motor (5), A sliding block (8) falling on the slide rail (6) and threadedly connected with the lead screw (7) and driven by the lead screw (7).

6. The seamless fabric applicable positioning roller structure according to claim 1, wherein: Each positioning roller (3) is provided with an independent rotating power source (9), and the power source moves with the positioning roller (3).

7. The seamless fabric applicable positioning roller structure according to claim 1, characterized in that: In the circumferential array state of the roller group, the center position is a blank position.

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