Stretching roller assembly and setting machine having the same

Abstract

This invention relates to the field of fabric setting technology, and more specifically to setting equipment for stretching and setting fabrics. The fabric setting stretching roller assembly includes: a frame and a rotating shaft rotatably mounted on the frame; a stretching unit further includes: a plurality of sliding guide bars distributed circumferentially on the rotating shaft and rotating synchronously with the rotating shaft, each sliding guide bar being slidably mounted on the rotating shaft and capable of sliding along the axial direction of the rotating shaft; a sliding guide member fixed to the frame, having: a guide structure slidably connected to the plurality of sliding guide bars and defining the sliding trajectory of the sliding guide bars; the guide structure is configured to: guide the sliding guide bars to continuously move axially with the rotation of the rotating shaft, and when the sliding guide bar rotates to the stretching area, drive the sliding guide bar to continuously slide axially towards one end of the rotating shaft, and when the sliding guide bar rotates to the reset area, drive the sliding guide bar to reset.

Description

Technical Field

[0001] This invention relates to the field of fabric shaping or stretching technology, and more specifically to shaping equipment for stretching or stretching fabrics. Background Technology

[0002] Existing heat-setting equipment, especially for fabrics, consists of several heat-setting mechanisms. The fabric is fitted onto these mechanisms, and heat-setting rollers spread the fabric. The mechanisms then drive the fabric to rotate flexibly, thus setting the fabric. For example, patent application CN111206359A discloses a CNC heat-setting machine. However, such machines can only heat-set the fabric along its width (radial and circumferential directions), not its length (axial direction). Fabrics are more prone to curling and wrinkling along their axial direction, particularly at the edges. Failure to stretch the fabric in this direction to achieve the required dimensions for heat setting would reduce the quality of the heat setting.

[0003] Based on this, stenter structures have emerged that can better stretch and extend fabrics in the axial direction to improve the fabric's setting quality. For example, a stenter for fabric setting is disclosed in patent application CN117431711A. This stenter includes a fabric stretching mechanism that stretches the fabric axially along a fixed axis to achieve the aforementioned axial stretching (outward stretching of the fabric to open and set it), thus meeting the actual stretching and setting requirements of the fabric. However, in actual use, it has been found that using this fabric stretching mechanism for fabric stretching and setting results in low production efficiency and deviations in the fabric stretching and setting effect. Summary of the Invention

[0004] One of the objectives of this invention is to address the shortcomings of the prior art by providing a stretching roller assembly that can improve production efficiency and optimize fabric shaping or stretching effects.

[0005] A second objective of this invention is to provide a setting machine having the above-mentioned stretching roller assembly, which can improve production efficiency and output fabrics with better setting or stretching effects.

[0006] The technical solution of the present invention is as follows:

[0007] First, this invention is based on the problem that existing fabric stretching mechanisms that stretch fabrics in the axial direction have low production efficiency and poor fabric stretching and shaping effect.

[0008] This fabric stretching mechanism typically uses, for example, a lead screw to drive two stretching blocks (such as the pressure sleeve in publication number CN117431711A) to reciprocate, in order to stretch and extend the fabric. Specifically, it drives the two stretching blocks to move away from each other simultaneously, thereby stretching and extending the fabric fitted on them to achieve the required dimensional shape.

[0009] However, due to its structural limitations, after each movement of the two stretching blocks to their extreme positions, they must be reset to their original positions before the stretching action can be performed again. On the one hand, the reset action of the stretching blocks consumes a significant amount of production time, preventing the fabric from undergoing continuous and efficient stretching, resulting in low production efficiency. On the other hand, the fabric often requires repeated stretching to achieve the desired shaping effect, but if the stretching blocks move in the opposite direction of the stretching movement, it will have a certain "rebound effect" on the stretched part of the fabric (i.e., stretching the fabric in the opposite direction to the required stretching direction), causing deviations in the fabric stretching and shaping effect, failing to meet the expected requirements.

[0010] Based on this, the present invention provides a stretching roller assembly that can improve production efficiency and optimize the shaping or stretching effect of fabrics.

[0011] The stretching roller assembly for shaping or stretching the fabric includes: a frame and a rotating shaft rotatably mounted on the frame;

[0012] It also includes a tensioning unit, which comprises:

[0013] Several sliding guide bars are distributed circumferentially around the rotating shaft and rotate synchronously with the rotating shaft. Each sliding guide bar is slidably installed on the rotating shaft and can slide along the axial direction of the rotating shaft.

[0014] A sliding guide fixed to a frame has a guiding structure that is slidably connected to a plurality of sliding guide bars and limits the sliding trajectory of the sliding guide bars.

[0015] The guide structure is configured to guide the sliding guide bar to continuously move axially with the rotation of the shaft, and when the sliding guide bar rotates to the stretching area, drive the sliding guide bar to continuously slide axially towards one end of the shaft, and when the sliding guide bar rotates to the reset area, drive the sliding guide bar to reset.

[0016] This invention includes several sliding guide strips for supporting the fabric. These guide strips rotate synchronously with the rotating shaft and can slide along the shaft. A guide structure also defines the sliding trajectory of the guide strips. This allows the following: when the fabric is fitted onto the stretching unit, the rotating shaft drives the guide strips to rotate synchronously, causing the fabric to flexibly rotate. Simultaneously, the guide structure drives the portion of the guide strip that has rotated to the stretching area, is in contact with the fabric, and moves the fabric towards the fixed shaft, thus stretching and extending the fabric axially to the required dimensions for heat setting and eliminating defects. When the guide strip rotates to the reset area, the guide structure drives it to reset without contacting the fabric, allowing the guide strips to continuously stretch and extend the fabric without stopping the machine during rotation.

[0017] That is, using this stretching roller assembly to stretch the fabric can continuously drive the fabric to rotate and stretch it without stopping the machine to reset. This saves the time of stopping the machine to reset, thereby improving the overall setting production efficiency. It can also better avoid the adverse effects on the fabric during the reset of the sliding guide strip, and achieve continuous stretching while better avoiding the "back-carrying effect", thus optimizing and improving the stretching and setting effect of the fabric.

[0018] In some schemes, the guiding structure includes:

[0019] At least one tension guide section for sliding assembly of the mating part of the sliding guide bar extends in a forward / reverse spiral around the axis of the rotating shaft. When the sliding guide bar rotates to the tension guide section, the tension guide section drives the mating part to slide, thereby causing the sliding guide bar to move continuously toward one end of the rotating shaft.

[0020] At least one reset guide section for sliding assembly of the mating parts extends in a counter- or forward spiral around the axis of the rotating shaft, and drives the mating parts to reset when the sliding guide bar rotates to the reset area;

[0021] Furthermore, all stretching guide sections and all reset guide sections are grounded to achieve the following: as the sliding guide bar rotates with the shaft, the mating part alternately slides on the stretching guide section and the reset guide section.

[0022] The guide section and the docking section can be any structure adapted to the sliding assembly.

[0023] In some designs, both the stretch guide section and the reset guide section are raised structures, and the mating part is a groove adapted for the insertion of the stretch guide section and the reset guide section for sliding assembly.

[0024] Then, when a groove is provided on the sliding guide bar so that the guide protrusion is inserted to achieve sliding assembly, the following problems will further arise:

[0025] To prevent deformation of the sliding guide strip, it must be made thicker to accommodate the formation of the groove. However, if the sliding guide strip is made too thick, it will be too heavy and affect the smoothness of its sliding action, causing problems such as jamming during the stretching action, which will hinder the stretching of the fabric.

[0026] Preferably, in some embodiments, both the stretch guide section and the reset guide section are grooves, and the mating part is a protrusion that is adapted to be inserted into the stretch guide section and the reset guide section for sliding assembly.

[0027] Setting protrusions (smaller local thickenings or additional structures) on the sliding guide strip instead of grooves (which usually require forming a larger area of ​​thick plate to process grooves) can achieve the same sliding action, while having a smaller impact on the thickness and weight of the sliding guide strip itself. It is also less likely to weaken the structure of the sliding guide strip mother plate, allowing the sliding guide strip to slide smoothly with a lighter weight, thereby improving the smoothness and stability of fabric stretching.

[0028] In some designs, the tensioning unit also includes a base component positioned on the side of the sliding guide bar away from the fixed axis.

[0029] The base component is fixed to the rotating shaft and rotates synchronously with the rotating shaft, and the base component has a guide groove with the groove opening facing the sliding guide bar;

[0030] Multiple guide grooves are provided to match several sliding guide bars, so that when the rotating shaft rotates, one end of each sliding guide bar slides in a guide groove along the axial direction of the fixed shaft.

[0031] By setting a base component for the sliding insertion of the sliding guide bar, the radial circumference accuracy of the stretch roller assembly can be better controlled.

[0032] In some designs, the diameter of the guide groove gradually decreases in the direction from the sliding guide bar to the base component;

[0033] Furthermore, in the direction from the sliding guide bar to the base component, the size of one end of the sliding guide bar gradually decreases to match the diameter of the guide groove. This reduces the possibility of slippage and improves the stability of the stretch roller assembly used for fabric shaping or stretching.

[0034] In some designs, the rotating shaft is fixedly fitted with a synchronous rotating disk that rotates synchronously with the rotating shaft;

[0035] The synchronous rotating disk is equipped with multiple sliding docking parts matching several sliding guide strips. Each sliding guide strip's sliding docking part is adapted to slide and install onto one sliding docking part, enabling the sliding guide strip to slide along the axis of the rotating shaft. This improves the support effect of the sliding guide strips, enhances the overall structural stability, and better supports the fabric, ensuring its flat placement. Furthermore, it adds sliding guide limiters to the sliding guide strips, improving the stability of the sliding process and reducing the possibility of jamming or other issues affecting fabric stretching during complex movements.

[0036] In some designs, two stretching units are arranged in opposite directions: when the shaft rotates, the sliding direction of the sliding guide bar in one stretching unit is opposite to that in the other stretching unit. This allows for simultaneous stretching of the fabric in both directions, improving the stretching effect.

[0037] In some designs, two tensioning units are arranged at intervals, and a sleeve fitted onto a rotating shaft and rotating synchronously with the shaft is provided between the two tensioning units.

[0038] The outer surface of the sleeve has the same curvature as the outer surface of the sliding guide strip. It also provides support for the fabric in contact with it. This improves the flatness of the fabric placement, reduces the possibility of problems such as stretching, jamming, and tearing caused by uneven fabric surfaces, and improves the fabric's flatness, allowing for better and smoother stretching to the required dimensions, thus enhancing the fabric's shaping and stretching effect.

[0039] A setting machine, comprising a stretching roller assembly for setting or stretching any of the above-mentioned fabrics.

[0040] In some designs, two spaced-apart stretching roller assemblies for shaping or stretching the fabric are included, with each assembly used to stretch the fabric.

[0041] In some designs, the setting machine also includes a movable frame on which two spaced-apart stretching roller assemblies for setting or stretching fabrics are slidably mounted so that they can move closer to or further apart from each other.

[0042] Furthermore, a displacement device is provided, which is configured to drive two stretching roller assemblies for shaping or stretching fabrics to move closer to each other or further apart.

[0043] The main beneficial effects of the above technical solution are as follows:

[0044] 1. Using this stretching roller assembly to stretch the fabric, the fabric can be continuously rotated and stretched without stopping the machine for reset, saving the time of stopping the machine for reset and improving the overall shaping production efficiency.

[0045] 2. Using this stretching roller assembly to stretch the fabric can better avoid the adverse effects on the fabric during the reset process of the sliding guide strip, achieve continuous stretching while better avoiding the "back-carrying effect", and optimize and improve the stretching and shaping effect of the fabric.

[0046] 3. It can be adapted to form a variety of sliding assembly structures, expanding the options for solutions.

[0047] 4. Setting protrusions instead of grooves on the sliding guide strip enables sliding action without weakening the structure of the sliding guide strip mother plate. This allows the sliding guide strip to slide smoothly with a lighter weight, thereby improving the smoothness and stability of fabric stretching.

[0048] 5. By setting a base component for the sliding insertion of the sliding guide bar, the radial circumference accuracy of the stretch roller assembly can be better controlled.

[0049] 6. Further optimize the structure of the sliding guide strip and guide groove by combining the sliding action of the sliding guide strip, so as to reduce the possibility of sliding jamming and improve the working stability of the stretching roller assembly used for fabric shaping or stretching.

[0050] 7. By setting a synchronous rotating disk that supports the sliding guide strip, the overall structural stability is improved, while the sliding contact area is reduced, friction is reduced, and sliding efficiency is improved; thereby improving the smoothness of the fabric stretching action.

[0051] 8. By setting two stretching units, the fabric can be stretched simultaneously in two directions, thus improving the stretching effect.

[0052] 9. The sleeves that support the fabric are arranged in conjunction with the interval stretching unit to improve the flatness of the fabric placement, reduce the possibility of stretching jamming, stretching tearing and other problems caused by uneven fabric. At the same time, the flatness of the fabric is improved, and the fabric is stretched to the required size more smoothly, thereby improving the shaping and stretching effect of the fabric.

[0053] 10. A setting machine using a stretch roller assembly can simultaneously achieve bidirectional setting by widening and length stretching.

[0054] 11. A setting machine consisting of two fabric setting or stretching roller assemblies is provided to improve the fabric setting and stretching effect. Furthermore, a shifting device is provided to drive the two fabric setting or stretching roller assemblies to move, so that the setting machine can better adapt to stretching operations on fabrics with different outer diameters.

[0055] Further or more detailed beneficial effects will be described in conjunction with specific embodiments in the detailed implementation. Attached Figure Description

[0056] The invention will be further described below with reference to the accompanying drawings:

[0057] Figure 1 A schematic diagram of the structure when the fabric is directly sleeved on the rotating shaft.

[0058] Figure 2 A schematic diagram of the overall structure of a stretching roller assembly used for shaping or stretching fabrics.

[0059] Figure 3 A cross-sectional schematic diagram of a stretching roller assembly used for shaping or stretching fabrics.

[0060] Figure 4 A schematic diagram of the structure when the fabric is fitted onto the stretching unit.

[0061] Figure 5 This is a schematic diagram of the assembly structure of the tension unit.

[0062] Figure 6 This is a schematic diagram of the assembly structure of the sliding guide bar.

[0063] Figure 7 A schematic diagram of the guide structure is provided.

[0064] Figure 8 This is a cross-sectional view of two tension unit structures.

[0065] Figure 9 This is a schematic diagram of the assembly structure of the sliding guide component.

[0066] Figure 10 This is a schematic diagram of the assembly structure of the stenter.

[0067] Figure 11 This is a schematic diagram of a setting machine with a housing. Detailed Implementation

[0068] The present invention will be specifically illustrated below with reference to embodiments:

[0069] Example 1:

[0070] A stretching roller assembly for setting or stretching fabrics is used to pack fabrics (flat fabrics or especially tubular fabrics) and to stretch, extend, and stretch the packed fabrics so that the fabrics reach the required dimensions.

[0071] As attached Figure 1 and attached Figure 2As shown, the stretching roller assembly for shaping or stretching fabric mainly includes a frame 1 and a fixed shaft 2 fixedly connected to the frame 1. The fixed shaft 2 is fitted with a rotating shaft 3 that covers the outer periphery of the fixed shaft 2 and can rotate around the fixed shaft 2. The rotating shaft 3 is connected to a drive device 4 that drives its rotation via, for example, a gear transmission structure. The drive device 4 can be a motor that provides rotational force.

[0072] At this time, fabric a is attached as follows Figure 2 As shown, it is mounted on the rotating shaft 3, and the driving device 4 can drive the rotating shaft 3 to rotate, thereby causing the fabric a to rotate synchronously.

[0073] Among them, as attached Figure 2 As shown, the outer surface of the fixed shaft 2 is divided in the circumferential direction into: a supporting positive surface 2.1 (the left semicircle of the dotted line) for the fabric to overlap and form a supporting surface through the rotating shaft 3; a negative surface 2.2 (the right semicircle of the dotted line) facing away from the supporting positive surface 2.1; and two mating portions for the two ends of the supporting positive surface 2.1 to connect with the two ends of the negative surface 2.2 respectively. For example, see attached... Figure 2 As shown, one end of the supporting positive side 2.1 is connected to one end of the negative side 2.2 through the first docking part 2.3, while the other end of the supporting positive side 2.1 is connected to the other end of the negative side 2.2 through the second docking part 2.4.

[0074] At this time, the drive shaft 3 can only flatten the fabric a in the circumferential direction, but cannot stretch or extend the fabric a in the axial direction.

[0075] Based on this, as attached Figure 1 As shown, the stretching roller assembly for shaping or stretching fabric is also provided with a stretching unit 5 for placing fabric and stretching the placed fabric.

[0076] As attached Figure 3 As shown, the stretching unit 5 includes: a sliding guide bar 5.1 and a guide structure that drives the sliding guide bar 5.1 to slide according to the stretching requirements.

[0077] The sliding guide bars 5.1 are provided in several quantities (generally more than 2), and the several sliding guide bars 5.1 are distributed around the rotating shaft 3 and together form a cylindrical structure for supporting the fabric. Each sliding guide bar 5.1 is slidably installed on the rotating shaft 3 and can slide along the axis of the rotating shaft 3, and rotate synchronously with the rotating shaft 3.

[0078] For example, attached Figure 5 and attached Figure 6As shown, a synchronous rotating disk 5.4, which rotates synchronously with the rotating shaft 3, is fixedly mounted on the outer periphery of the rotating shaft 3 by means of screws, for example. The synchronous rotating disk 5.4 is provided with multiple sliding mating portions 5.41, each of which is a groove or protrusion extending through the axial direction of the rotating shaft 3, and the multiple sliding guides 5.1 surround and cover the outer periphery of the synchronous rotating disk 5.4. Each sliding guide 5.1 has a sliding joint 5.12 (with a protrusion or groove structure adapted to fit the groove or protrusion of the sliding mating portion 5.41) that is slidably mounted to a sliding mating portion 5.41, enabling the sliding guide 5.1 to slide along the axis of the rotating shaft 3.

[0079] Multiple synchronous rotating disks 5.4 can be fixed at intervals on the rotating shaft 3.

[0080] The sliding guide 5.2 is fixed on the fixed shaft 2 or on the frame 1 to be in a fixed state. Moreover, the sliding guide 5.2 has a guiding structure that is slidably connected to a plurality of sliding guide bars 5.1 and limits the sliding trajectory of the sliding guide bars 5.1 as they rotate with the rotating shaft 3.

[0081] The guide structure is configured as follows:

[0082] The sliding guide bar 5.1 can continuously rotate with the rotation of the rotating shaft 3 and move axially at the same time. When the sliding guide bar 5.1 rotates to the stretching area, it is driven to continuously slide axially towards one end of the rotating shaft 3. When the sliding guide bar 5.1 rotates to the reset area, it is driven to reset.

[0083] The stretching area can consist of two parts: a portion for the sliding guide 5.1 to contact the fabric (the area where the fabric contacts the sliding guide 5.1 for stretching), and another portion for the sliding guide 5.1 not to contact the fabric (e.g., a stretching preparation area before the sliding guide 5.1 contacts the fabric). For example, in the circumferential direction of the rotating shaft 3, the stretching area is the space around the outer periphery of the rotating shaft 3 that includes the external area of ​​the aforementioned supporting surface 2.1. The reset area is the area around the outer periphery of the rotating shaft 3 excluding the stretching area.

[0084] Here, we will illustrate one specific example of movement:

[0085] As the sliding guide bar 5.1 rotates through the outer area of ​​the supporting surface 2.1, it continuously drives the sliding guide bar 5.1 to move towards one end of the fixed axis 2 from the outer area of ​​one docking part (e.g., the first docking part 2.3) to the outer area of ​​another docking part (e.g., the second docking part 2.4) to form a stretching action on the fabric.

[0086] When the sliding guide bar 5.1 rotates through the outer area of ​​the negative surface 2.2, it is driven to reset and move from the outer area of ​​another mating part (e.g., the second mating part 2.4) to the outer area of ​​a mating part (e.g., the first mating part 2.3).

[0087] To be precise, as shown in the appendix Figure 6 and attached Figure 7 As shown, the guide structure includes at least one tension guide section 5.21 and at least one reset guide section 5.22.

[0088] The stretch guide section 5.21 provides sliding assembly for the docking portion 5.11 of the sliding guide strip 5.1 (the docking portion 5.11 is fixed to the sliding guide strip 5.1 by a fixing structure such as screws, or is integrally formed with the sliding guide strip 5.1). The stretch guide section 5.21 extends spirally in both directions around the axis of the rotating shaft 3 (the spiral extension direction of the stretch guide section 5.21 is the stretching direction in the axial direction of the rotating shaft 3). During the process of the sliding guide strip 5.1 rotating to contact the fabric, the stretch guide section 5.21 drives the docking portion 5.11 to slide, thereby causing the sliding guide strip 5.1 to continuously move towards one end of the rotating shaft 3. The two ends of the stretch guide section 5.21 are respectively: the initial stretching position 5.21a, which is aligned with the second docking portion 2.4, and the final stretching position 5.21b, which is aligned with the first docking portion 2.3. The interval between the initial stretching position 5.21a and the final stretching position 5.21b is not necessarily 180 degrees, but is set according to the specific stretching path requirements. Along the axial direction of the fixed axis 2, the direction from the initial stretching position 5.21a to the final stretching position 5.21b is the stretching direction of the fabric. When the sliding guide bar 5.1 rotates past the outer area of ​​the supporting surface 2.1, the stretching guide section 5.21 drives the connecting part 5.11 to slide from the initial stretching position 5.21a to the final stretching position 5.21b, thereby causing the sliding guide bar 5.1 to continuously move towards one end of the fixed axis 2 to perform the stretching action on the fabric.

[0089] The reset guide section 5.22 provides sliding assembly for the docking part 5.11. It extends in a reverse / forward spiral around the axis of the fixed shaft 2, and when the sliding guide bar 5.1 rotates through the outer area of ​​the female surface 2.2, it drives the docking part 5.11 to reset and move from the stretching end position 5.21b to the stretching original position 5.21a.

[0090] Furthermore, the two ends of the stretch guide section 5.21 are respectively grounded to the two ends of the reset guide section 5.22, so that during the rotation of the sliding guide bar 5.1 with the rotating shaft 3, the mating part 5.11 alternately slides on the stretch guide section 5.21 and the reset guide section 5.22. This allows the stretch guide section 5.21 and the reset guide section 5.22 to together form a closed guide structure for the mating part 5.11 to slide.

[0091] As an example, for instance, when the fixed axis 2 and the sliding guide 5.2 are as shown in the appendix... Figure 7 The arrangement is shown in the figure, and the drive device 4 drives the rotating shaft 3 to synchronously drive the sliding guide bar 5.1 according to the appendix. Figure 7 When rotating as shown by the dashed line, the stretch guide section 5.21 is stretched according to the appendix. Figure 7 The spiral extension arrangement is carried out in the left-center view, and the guide segment 5.22 is reset according to the appendix. Figure 7 The spiral extension arrangement is carried out in the middle right view.

[0092] At this point, when it is necessary to stretch fabric a, as shown in the attached... Figure 4 As shown, one side of fabric a is tightly fitted onto a cylindrical structure formed by several sliding guide strips 5.1. The driving device 4 drives the rotating shaft 3 to synchronously drive the sliding guide strips 5.1 according to the attached diagram. Figure 7 The dotted line indicates that the rotation is performed to drive fabric a to rotate synchronously.

[0093] A docking part 5.11 located at the initial stretching position 5.21a slides synchronously on the stretching guide section 5.21, thereby driving a sliding guide strip 5.1 fixed to the docking part 5.11 to continuously move outward, or in other words, driving the sliding guide strip 5.1 to continuously move towards one end of the fixed axis 2. During this process, the sliding guide strip 5.1 rotates through the outer area of ​​the supporting surface 2.1, and through the friction between the sliding guide strip 5.1 and the fabric a, drives a portion of the fabric a to extend and stretch outward, thereby achieving the stretching and shaping action of the fabric a in the axial direction.

[0094] When the aforementioned docking part 5.11 slides to the stretching end point 5.21b, a sliding guide strip 5.1 fixed to the docking part 5.11 will soon disengage from the fabric a, and the docking part 5.11 will also soon slide into the reset guide section 5.22.

[0095] As the rotating shaft 3 drives the sliding guide bar 5.1 to continue rotating, the docking part 5.11 slides back to its original stretching position 5.21a via the reset guide section 5.22, achieving reset movement, and can then continue to perform a new round of stretching action as described above. During this process, the sliding guide bar 5.1, which is fixed to the docking part 5.11, moves inward along with the docking part 5.11, and the sliding guide bar 5.1 rotates through the outer area of ​​the negative surface 2.2. Moreover, during the process of the sliding guide bar 5.1 rotating through the outer area of ​​the negative surface 2.2 to reset, the sliding guide bar 5.1 does not contact the fabric a, nor does it cause the fabric a to undergo unwanted reverse stretching.

[0096] The above actions ensure that a sliding guide bar 5.1 continuously stretches the fabric a while rotating synchronously with the rotating shaft 3. Each sliding guide bar 5.1 performs the stretching operation on the fabric a in accordance with the above actions to form an overall, uninterrupted stretching process.

[0097] Alternatively, multiple stretching guide segments 5.21 can be provided, connected together to form a large guide section to guide the sliding guide bar 5.1 to continuously perform directional stretching action on the fabric. In this case, the helical extension slope of each stretching guide segment 5.21 can be set according to requirements to customize the specific stretching path. Simultaneously, multiple reset guide segments 5.22 can also be provided, connected together to form a large reset section to reset and guide the sliding guide bar 5.1. In this case, the helical extension slope of each sliding guide bar 5.1 can also be set according to requirements. In this case, the two ends of a large guide section are connected to the two ends of a large reset section to form a closed-loop guide structure that drives the sliding guide bar 5.1 to move according to the aforementioned stretching and reset actions.

[0098] Additionally, in some other designs, multiple stretching guide sections 5.21 and multiple resetting guide sections 5.22 can be connected alternately. For example, under certain specific stretching requirements, the closed guide structure can be arranged as follows: multiple stretching guide sections 5.21, then multiple resetting guide sections 5.22, then more stretching guide sections 5.21, then more resetting guide sections 5.22, and so on, forming a multi-segment stretching stroke of stretching, resetting, stretching, and resetting; each stretching segment can perform a stretching action on a specific fabric.

[0099] Among them, the guide part and the docking part 5.11 can be any structure adapted to the sliding assembly.

[0100] As an example, the stretch guide section 5.21 and the reset guide section 5.22 can both be grooves, and the mating part 5.11 is a protrusion that is adapted to be inserted into the stretch guide section 5.21 and the reset guide section 5.22 for sliding assembly.

[0101] Alternatively, as another example, both the stretch guide section 5.21 and the reset guide section 5.22 are protruding structures, and the mating part 5.11 is a groove adapted for the insertion of the stretch guide section 5.21 and the reset guide section 5.22 for sliding assembly.

[0102] Furthermore, the tensioning unit 5 also includes a base member 5.3, which is located on the side of the sliding guide bar 5.1 away from the fixed axis 2.

[0103] The base component 5.3 is fixed to the rotating shaft 3 by means of screws, for example, and rotates synchronously with the rotating shaft 3. The base component 5.3 has a guide groove 5.31 with its opening facing the sliding guide bar 5.1. Multiple guide grooves 5.31 are provided to match a plurality of sliding guide bars 5.1, such that when the rotating shaft 3 rotates, one end of each sliding guide bar 5.1 slides within a guide groove 5.31 along the axial direction of the fixed shaft 2. That is, as described above, when the sliding guide bar 5.1 moves outward along the axial direction of the fixed shaft 2, one end of the sliding guide bar 5.1 slides outward from the guide groove 5.31; and when the sliding guide bar 5.1 moves inward along the axial direction of the fixed shaft 2, one end of the sliding guide bar 5.1 re-slides and re-inserts into the guide groove 5.31.

[0104] In the direction from the sliding guide bar 5.1 to the base member 5.3, the diameter of the guide groove 5.31 gradually decreases, forming a tapered structure; and in the direction from the sliding guide bar 5.1 to the base member 5.3, the size of one end of the sliding guide bar 5.1 gradually decreases to match the diameter of the guide groove 5.31. This forms a guide structure that guides one end of the sliding guide bar 5.1 to be inserted into the guide groove 5.31.

[0105] Furthermore, two stretching units 5 can be provided, and the two stretching units 5 are arranged in opposite directions: when the rotating shaft 3 rotates, the sliding direction of the sliding guide bar 5.1 in one stretching unit 5 is opposite to the sliding direction of the sliding guide bar 5.1 in the other stretching unit 5.

[0106] That is, by symmetrically arranging the guide structure in one stretching unit 5 with the guide structure in the other stretching unit 5, the sliding direction of the sliding guide bar 5.1 in one stretching unit 5 is opposite to that in the other stretching unit 5 when the rotating shaft 3 rotates. The positions of the two stretching units 5 are set according to the size structure of the fabric a, so that the two stretching units 5 are respectively located at both ends of the fabric a, and thus, for example, the fabric can be stretched to both sides by using both hands, to achieve axial stretching of both ends of the fabric a.

[0107] At this point, there is often a certain gap between the two tensioning units 5, as shown in the attached diagram. Figure 8 As shown, a sleeve 6 is provided between the two stretching units 5 and fitted onto the rotating shaft 3. It is fixed to the rotating shaft 3 by means of, for example, screws and rotates synchronously with the rotating shaft 3. The outer surface of the sleeve 6 provides support for the fabric in contact with it, so as to lift the part of the fabric that is placed between the two stretching units 5 and is drooping, so that the stretching unit 5 can stretch the fabric more smoothly.

[0108] For example, attached Figure 8 and attached Figure 9As shown, the sliding guide 5.2 can be placed at the end of the fixed shaft 2 and fixedly connected to the fixed shaft 2 via the connecting shaft 2.1. At this time, a cover 9 can also be connected to the sliding guide 5.2. This cover 9 covers the sliding guide strip 5.1 from the side, and the cover 9 has an annular protective wall 9.1 protruding towards the sliding guide strip 5.1. The annular protective wall 9.1 is arranged around the outer periphery of several sliding guide strips 5.1 (i.e., one end of each sliding guide strip 5.1 is placed in the space formed by the annular protective wall 9.1), so as to protect the sliding assembly structure between the guide part and the mating part 5.11 and facilitate shaping operations.

[0109] Example 2:

[0110] A setting machine comprising a stretching roller assembly for setting or stretching fabrics according to any of the embodiments in Example 1.

[0111] As an example, a setting machine may include a stretching roller assembly for setting or stretching a fabric, and rollers spaced apart from the stretching roller assembly. When stretching fabric a, the stretching roller assembly for setting or stretching the fabric is as shown in the attached diagram. Figure 4 The roller is inserted into fabric a as shown, and one side of fabric a is supported; the roller is inserted into fabric a, and the other side of fabric a is supported, driving the stretching roller assembly to perform stretching work as in Embodiment 1, thereby stretching fabric a.

[0112] Or, for example, appendix Figure 10 As shown, as another example, the setting machine may include two spaced-apart stretching roller assemblies for setting or stretching fabric, and the two stretching roller assemblies are used to support the two ends of the fabric respectively.

[0113] That is, one fabric shaping or stretching stretching roller assembly is inserted into fabric a and supports one side of fabric a; another fabric shaping or stretching stretching roller assembly is inserted into fabric a and supports the other side of fabric a. At this time, referring to the description in Embodiment 1, the two fabric shaping or stretching stretching roller assemblies are driven to perform stretching actions simultaneously, so that fabric a can be stretched more efficiently.

[0114] At this time, the setting machine may also include a movable frame 7, on which two spaced-apart stretching roller assemblies for setting or stretching fabrics are slidably mounted via, for example, a slide rail structure, so that they can move closer to or further apart.

[0115] Furthermore, a shifting device 8 is provided, which is configured to drive two stretching roller assemblies for shaping or stretching fabrics to move closer to each other or further apart.

[0116] As an example, see attached Figure 10As shown, the shifting device 8 includes a drive motor 8.1 for providing rotational force, which is connected to a first screw 8.2 and a second screw 8.3. The first screw 8.2 and the second screw 8.3 can rotate synchronously under the drive of the drive motor 8.1.

[0117] Meanwhile, the extension directions of the first screw 8.2 and the second screw 8.3 are both in accordance with (the in accordance with means: preferably parallel, but angular deviations that do not affect the stretching movement) the sliding direction of the stretching roller assembly used for fabric shaping or stretching.

[0118] The first screw 8.2 is inserted into the frame 1 of a stretching roller assembly for fabric shaping or stretching, and is screwed to the frame 1 to achieve the following: by driving the first screw 8.2 to rotate, the frame 1 is driven to slide on the movable frame 7.

[0119] The second screw 8.3 is inserted into the frame 1 of another fabric shaping or stretching roller assembly and is screwed to the frame 1 to achieve the following: by driving the second screw 8.3 to rotate, the frame 1 is driven to slide on the moving frame 7.

[0120] At this time, by arranging the thread direction on the first screw 8.2 and the thread direction on the second screw 8.3 in opposite directions, the first screw 8.2 and the second screw 8.3 can be driven to rotate in the same direction by the drive motor 8.1, thereby driving the two stretching roller assemblies used for fabric shaping or stretching to move closer to each other or further away from each other.

[0121] The application fields of the technical solution of this invention are not limited to fabric shaping, but can also be used for fabric stretching, etc.; the types of fabrics are not limited to seamless fabrics, but can also be knitted, woven, and other fabrics.

[0122] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of the invention. Furthermore, the terms "vertical," "horizontal," "front," and "rear," etc., mentioned in the embodiments of the present invention indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. These are merely for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be further noted that, unless otherwise explicitly specified and limited, terms such as "install," "connect," "join," and "fix" in the description should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0123] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A stretching roller assembly for supplying and stretching a tubular fabric assembly, comprising: The frame (1) and the shaft (3) rotatably mounted on the frame (1); The feature is that the rotating shaft (3) is connected to a driving device (4) that drives it to rotate. It also includes a tensioning unit (5), which comprises: A plurality of sliding guide bars (5.1) are distributed circumferentially on the rotating shaft (3) and rotate synchronously with the rotating shaft (3). Each of the sliding guide bars (5.1) is slidably installed on the rotating shaft (3) and can slide along the axial direction of the rotating shaft (3). The sliding guide (5.2) fixed to the frame (1) has a guide structure that is slidably connected to a plurality of the sliding guide bars (5.1) and defines the sliding trajectory of the sliding guide bars (5.1); The guide structure is configured to guide the sliding guide bar (5.1) to continuously move axially with the rotation of the rotating shaft (3), and when the sliding guide bar (5.1) rotates to the stretching area, drive the sliding guide bar (5.1) to continuously slide axially toward one end of the rotating shaft (3), and when the sliding guide bar (5.1) rotates to the reset area, drive the sliding guide bar (5.1) to reset. The stretching unit (5) also includes a base member (5.3), which is located on the side of the sliding guide bar (5.1) away from the rotating shaft (3); The base member (5.3) is fixed to the rotating shaft (3) and rotates synchronously with the rotating shaft (3), and the base member (5.3) has a guide groove (5.31) with the groove facing the sliding guide bar (5.1). The guide groove (5.31) is provided in a plurality of matching sliding guide bars (5.1) so that: when the rotating shaft (3) rotates, one end of each sliding guide bar (5.1) is adapted to slide in a guide groove (5.31) in the axial direction of the rotating shaft (3).

2. The stretching roller assembly according to claim 1, characterized in that: The guiding structure includes: At least one tension guide section (5.21) for sliding assembly of the mating portion (5.11) of the sliding guide bar (5.1) extends in a forward / reverse spiral around the axis of the rotating shaft (3). When the sliding guide bar (5.1) rotates to the tension guide section (5.21), the tension guide section (5.21) drives the mating portion (5.11) to slide, thereby causing the sliding guide bar (5.1) to continuously move toward one end of the rotating shaft (3). At least one reset guide section (5.22) for sliding assembly of the docking part (5.11) extends in a reverse / forward spiral around the axis of the rotating shaft (3) and drives the docking part (5.11) to reset when the sliding guide bar (5.1) rotates to the reset area; Furthermore, the stretching guide section (5.21) and the reset guide section (5.22) are grounded to achieve the following: during the rotation of the sliding guide bar (5.1) with the rotating shaft (3), the docking part (5.11) alternately slides on the stretching guide section (5.21) and the reset guide section (5.22).

3. The stretching roller assembly according to claim 2, characterized in that: Both the stretching guide section (5.21) and the reset guide section (5.22) are grooves, and the mating part (5.11) is a protrusion that is adapted to be inserted into the stretching guide section (5.21) and the reset guide section (5.22) for sliding assembly; Alternatively, both the stretching guide section (5.21) and the reset guide section (5.22) are protruding structures, and the mating part (5.11) is a groove adapted for the insertion of the stretching guide section (5.21) and the reset guide section (5.22) for sliding assembly.

4. The stretching roller assembly according to claim 1, characterized in that: In the direction from the sliding guide bar (5.1) to the base member (5.3), the diameter of the guide groove (5.31) gradually decreases; Furthermore, in the direction from the sliding guide bar (5.1) to the base member (5.3), the size of one end of the sliding guide bar (5.1) gradually decreases to match the diameter of the guide groove (5.31).

5. The stretching roller assembly according to claim 1, characterized in that: The rotating shaft (3) is fixedly fitted with a synchronous rotating disk (5.4) that rotates synchronously with the rotating shaft (3). The synchronous rotating disk (5.4) is provided with multiple sliding docking parts (5.41) in matching with a plurality of the sliding guide bars (5.1). The sliding part (5.12) of each sliding guide bar (5.1) is adapted to slide and install on one of the sliding docking parts (5.41) to achieve that the sliding guide bar (5.1) is slidably installed on the rotating shaft (3) and can slide along the axis of the rotating shaft (3).

6. The stretching roller assembly according to any one of claims 1 to 5, characterized in that: Two stretching units (5) are provided, and the two stretching units (5) are arranged in opposite directions to achieve the following: when the rotating shaft (3) rotates, the sliding direction of the sliding guide bar (5.1) in one stretching unit (5) is opposite to the sliding direction of the sliding guide bar (5.1) in the other stretching unit (5).

7. The stretching roller assembly according to claim 6, characterized in that: The two stretching units (5) are arranged at intervals, and a sleeve (6) is provided between the two stretching units (5) and is fitted on the rotating shaft (3) and rotates synchronously with the rotating shaft (3). The outer surface of the sleeve (6) has the same curvature as the outer surface of the sliding guide bar (5.1).

8. A setting machine, characterized in that: It includes the stretching roller assembly as described in any one of claims 1 to 7.

9. The setting machine according to claim 8, characterized in that: It includes two stretching roller assemblies spaced apart, and each of the two stretching roller assemblies is used to stretch the fabric.

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