Feeding mechanism of quilting and embroidering machine

Abstract

The utility model discloses a feeding mechanism of a quilting and embroidering machine, which comprises a U-shaped support frame serving as a base of the feeding mechanism of the quilting and embroidering machine, and vertical channels for mounting feeding roller shafts are arranged on the left side and the right side of the base; according to the supporting roller shaft mechanism, double supporting roller wheel assemblies are transversely and movably arranged on the positions, at the same height, of the two sides of the U-shaped supporting frame, and the double supporting roller wheel assemblies support the two shaft extension ends of the feeding roller shaft in a rolling mode. According to the feeding mechanism of the quilting and embroidering machine, through the innovative adjustable supporting structure, efficient material changing, space saving, compatibility enhancing and stable operation are achieved at the same time, the automation level and production flexibility of the quilting and embroidering machine are remarkably improved, and the intelligent manufacturing requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a feeding mechanism, especially relates to a quilting and embroidery machine feeding mechanism. BACKGROUND

[0002] In the design of the feeding mechanism of the traditional quilting and embroidery machine, the feeding roller shaft is usually fixedly installed, that is, the two ends of the roller shaft are rigidly connected with the main body of the equipment through bolts or buckles. In the actual production process, when it is necessary to replace the cloth roll or perform the threading operation, the operator needs to realize it through the following two ways, the first is overall mechanical disassembly, that is, the feeding roller shaft is completely disassembled from the equipment frame, and the threading is completed after sufficient space is left, and then the roller shaft is reinstalled and the position is adjusted; the second is single-side disassembly and threading, that is, only the single-side fixing device of the roller shaft is loosened, the cloth is threaded into the gap between the roller shafts by using the limited lateral space, and then the fixed state is restored.

[0003] The above structures all have significant technical defects, including:

[0004] Low operation efficiency: whether overall disassembly or single-side disassembly, the fixing device needs to be frequently loosened and tightened, which increases the time consumption of single feeding, especially in the multi-variety and small-batch production scene, the proportion of downtime significantly increases;

[0005] Poor space compatibility: a large transverse or longitudinal operation space needs to be reserved during the threading process, which puts additional requirements on the workshop layout and the distance between equipment, and limits the compact design of the equipment;

[0006] In addition, with the diversification and high weight of textile materials, this installation structure needs to adapt to different specifications of the feeding roller shaft. Therefore, developing a feeding mechanism that does not need to disassemble the roller shaft, optimizes the threading path and has strong compatibility has become an urgent technical issue to improve the automation level of the quilting and embroidery equipment and adapt to the flexible manufacturing demand. UTILITY MODEL CONTENTS

[0007] In order to solve the above technical problems, the utility model provides a quilting and embroidery machine feeding mechanism.

[0008] In order to solve the above technical problems, the utility model adopts the technical scheme that a quilting and embroidery machine feeding mechanism comprises:

[0009] The U-shaped support frame is used as the base of the quilting and embroidery machine feeding mechanism, and vertical grooves for installing the feeding roller shaft are formed on the left and right sides of the base;

[0010] The support roller shaft mechanism is horizontally movably arranged at the same height on the two sides of the U-shaped support frame, and the double support roller assembly rolls and supports the two shaft extending ends of the feeding roller shaft.

[0011] Further, the U-shaped support frame comprises a first vertical plate, a second vertical plate and a plurality of horizontal beams, the first vertical plate and the second vertical plate are symmetrically arranged on the left and right sides, and the horizontal beams are connected to the bottom ends of the first vertical plate and the second vertical plate in a parallel relationship.

[0012] Further, the vertical groove is located in the middle of the first vertical plate and the second vertical plate, and is vertically downwardly formed along the upper edge of the first vertical plate and the second vertical plate, and the width of the vertical groove is greater than the shaft extension outer diameter of the feeding roller shaft.

[0013] Further, the two shaft extension ends of the feeding roller shaft are connected with the transmission roller respectively located on the outer side of the first vertical plate and the second vertical plate.

[0014] Further, the double-support roller assembly is movably arranged in the slide channel formed in the first vertical plate or the second vertical plate in a transverse direction, and the slide channels on the first vertical plate and the second vertical plate are arranged at the same height.

[0015] Further, the double-support roller assembly comprises a first sliding block and a second sliding block arranged in the slide channel in a matching manner, the first sliding block is connected with the first support roller outward of the first vertical plate or the second vertical plate, the second sliding block is connected with the second support roller outward of the first vertical plate or the second vertical plate, and the first sliding block and the second sliding block are arranged in the slide channel in an adjustable position through fixing bolts.

[0016] Further, the first support roller and the second support roller simultaneously rollingly contact the transmission roller.

[0017] The utility model discloses a kind of feeding mechanism of quilted embroidery machine through innovativeness adjustable support structure, simultaneously realize efficient material replacement, space saving, strong compatibility and stable operation, significantly improve the automation level and production flexibility of quilted embroidery machine, satisfy intelligent manufacturing demand. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the side view of embodiment one.

[0019] Figure 2 It is the perspective view of embodiment one.

[0020] Figure 3 It is the front view of embodiment two.

[0021] Figure 4 It is the side view of embodiment two.

[0022] In the drawing: 1, first vertical plate;2, second vertical plate;3, horizontal beam;4, slide channel;5, first sliding block;6, second sliding block;7, feeding roller shaft;8, transmission roller;9, second support roller;10, first support roller;11, vertical groove. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Example 1;

[0025] This embodiment employs a dual-support roller indirectly supporting the drive roller architecture, such as... Figure 1 and Figure 2 The feeding mechanism of the quilting machine shown includes a U-shaped support frame, which serves as the base for the feeding mechanism. Vertical channels 11 for mounting the feeding roller shaft are formed on both the left and right sides of the base. The U-shaped support frame includes a first vertical plate 1, a second vertical plate 2, and crossbeams 3. The first and second vertical plates 1 and 2 are symmetrically arranged on the left and right sides. At least two crossbeams 3 are connected to the bottom ends of the first and second vertical plates 1 and 2 in a parallel position. The vertical channels are located in the middle of the first and second vertical plates 1 and 2, and are vertically downwards along the upper edge of the first and second vertical plates 1 and 2. The width of the vertical channels is greater than the outer diameter of the feeding roller shaft. The width of the vertical channels on both sides of the U-shaped support frame is designed to be 1.2-1.5 times the outer diameter of the feeding roller shaft, forming a gravity-locked guide channel. The shaft extension end of the feeding roller shaft 7 can fall vertically along the channels to the mounting position of the transmission roller 8, achieving loading without disassembly.

[0026] The feeding mechanism of the quilting machine also includes a support roller mechanism. A double support roller assembly is laterally movable at the same height on both sides of the U-shaped support frame, providing rolling support to the two extended ends of the feeding roller shaft. The transmission rollers 8 connected to the two extended ends of the feeding roller shaft 7 are located on the outer sides of the first vertical plate 1 and the second vertical plate 2, respectively. The double support roller assembly includes a first slider 5 and a second slider 6 matched within a slide rail 4. The first slider 5 connects to the first support roller 10 outside the first vertical plate 1 or the second vertical plate 2, and the second slider connects to the second support roller 9 outside the first vertical plate 1 or the second vertical plate 2. Both the first slider 5 and the second slider 6 are adjustable within the slide rail 4 using fixing bolts. The double support roller assembly is movably mounted within the slide rail 4, which is laterally opened on the first vertical plate 1 or the second vertical plate 2. The slide rails 4 on the first vertical plate 1 and the second vertical plate 2 are positioned at the same height. The first support roller 10 and the second support roller 9 simultaneously roll in contact with the transmission roller 8.

[0027] The slide rail runs horizontally through the first and second vertical plates. The double support roller assembly moves horizontally within the slide rail via the first and second sliders. During adjustment, the fixing bolts are loosened, and the first and second support rollers on both sides are moved synchronously to disengage the drive roller from the support roller. At this time, the feeding roller shaft can be vertically lifted along the vertical channel to create space for material to pass through.

[0028] Thus, the transmission roller and the support roller roll into rolling contact to form a three-point support structure. The two support rollers and the outer circle tangent point of the transmission roller form a stable triangular support surface. The radial load when the feeding roller shaft rotates is offset by rolling friction, while allowing a small axial displacement to compensate for the fabric tension fluctuation. Note that the feeding roller shaft and the transmission roller rotate synchronously.

[0029] This embodiment enables a rapid material change mechanism. Material replacement can be completed in three steps: loosening the slider fixing bolts, moving the support roller outward, and vertically lifting the feeding roller shaft. This reduces the time required by more than 70% compared to traditional methods. Simultaneously, it enhances dynamic stability. The rolling support of the support roller on the drive roller effectively absorbs vibration energy during high-speed rotation, avoiding resonance problems caused by rigid connections (experimental data shows a 45% reduction in amplitude). Furthermore, it achieves multi-specification compatibility. The lateral adjustment range of the slide rail covers roller shaft specifications from Φ50 to Φ120mm. By adjusting the spacing of the support rollers to match different drive roller diameters, it ensures a contact wrap angle ≥120°, preventing slippage.

[0030] Example 2;

[0031] like Figure 3 and Figure 4 As shown, this embodiment adopts a simplified structure in which the feeding roller shaft extension end is directly supported by double support rollers. Consistent with Embodiment 1, the feeding mechanism of the quilting machine includes a U-shaped support frame, which serves as the base of the feeding mechanism. Vertical channels for mounting the feeding roller shaft are opened on both the left and right sides of the base. The U-shaped support frame includes a first vertical plate 1, a second vertical plate 2, and a crossbeam 3. The first vertical plate 1 and the second vertical plate 2 are symmetrically arranged on the left and right sides. At least two crossbeams 3 are connected to the bottom ends of the first vertical plate 1 and the second vertical plate 2 in a parallel position. The vertical channels are located in the middle of the first vertical plate 1 and the second vertical plate 2, and are opened vertically downwards along the upper edge of the first vertical plate 1 and the second vertical plate 2. The width of the vertical channels is greater than the outer diameter of the feeding roller shaft extension.

[0032] The quilting machine's feeding mechanism also includes a support roller mechanism. A double support roller assembly is laterally movable at the same height on both sides of the U-shaped support frame. The double support roller assembly provides rolling support to the two extended ends of the feeding roller shaft. The double support roller assembly includes a first slider 5 and a second slider 6 matched and disposed within a slide rail 4. The first slider 5 is connected to a first support roller 10 extending outward from the first vertical plate 1 or the second vertical plate 2, and the second slider is connected to a second support roller 9 extending outward from the first vertical plate 1 or the second vertical plate 2. Both the first slider 5 and the second slider 6 are adjustable within the slide rail 4 using fixing bolts. The double support roller assembly is movably disposed within the slide rail 4, which is laterally opened on the first vertical plate 1 or the second vertical plate 2. The slide rails 4 on the first vertical plate 1 and the second vertical plate 2 are positioned at the same height. Unlike Embodiment 1, in this embodiment, the first support roller 10 and the second support roller 9 simultaneously roll in contact with the two extended ends of the feeding roller shaft 7, eliminating the independent transmission roller. The extended ends of the feeding roller shaft 7 extend directly to the outside of the vertical plate, and the outer circular surface of the extended ends is hardened to serve as the rolling contact surface.

[0033] The first and second support rollers directly abut against the extension end of the feeding roller shaft. By adjusting the position of the slider, the axis of the support rollers forms an angle of 15°-30° with the axis of the feeding roller shaft, forming a self-aligning V-shaped support structure. When the feeding roller shaft is subjected to the traction force of the fabric, the support rollers generate a radial component force to automatically correct the position of the roller shaft and prevent deviation.

[0034] In other embodiments, an elastic limiting block is provided at the bottom of the vertical channel. When the support roller moves outward, the feeding roller shaft can be lifted upward to the position of the limiting block slot for temporary fixation, forming a suspended material feeding station, which can be completed by a single person.

[0035] This embodiment features a streamlined and cost-effective structure, eliminating the transmission roller assembly, reducing the number of parts by 40%, and lowering manufacturing costs by over 25%. It also boasts adaptive correction capabilities; the V-shaped support structure automatically adjusts the roller position when fabric tension is uneven, with measured deviation ≤0.5mm / m, exceeding the industry standard of 1.2mm / m. Furthermore, space utilization is optimized, with the shaft extension end directly serving as the support surface, reducing lateral space occupancy by 30%, making it particularly suitable for compact quilting machine layouts.

[0036] Both embodiments described above achieve non-disassembly feeding through a vertical channel and a horizontally adjustable support roller. The vertical channel design breaks away from the traditional bolt-fixed method, giving the feeding roller shaft vertical freedom of movement. During operation, only the horizontal constraint of the support roller needs to be released to raise the roller shaft to the feeding position, completely avoiding bolt removal. The slide and slider assembly constitute a horizontal adjustment mechanism, employing a trapezoidal groove anti-detachment design to ensure that the support roller does not experience axial movement under heavy load conditions. The support roller is available in two configurations: polyurethane-coated roller (Shore hardness 85A±5) or hardened steel roller, suitable for lightweight synthetic fiber fabrics and high-grammage canvas materials, respectively.

[0037] The laboratory test data were compared with the traditional method, and the technical effect comparison and verification are shown in Table 1.

[0038] Table 1

[0039] Indicator Conventional scheme Example 1 Example 2 Refueling time (min) 8.2 2.1(-74.4％) 1.8(-78.0％) Space occupation (m 2 )]]> 0.65 0.48(-26.2％) 0.41(-36.9％) Maintenance frequency (times / month) 3.7 0.5(-86.5％) 0.3(-91.9％) Maximum compatible basis weight (g / m 2 )]]> 600 850(+41.7％) 1200(+100％)

[0040] Conclusion: Through differentiated structural designs, the two embodiments respectively meet the requirements of high dynamic stability and high cost performance, and together achieve a breakthrough upgrade of the traditional quilting machine feeding technology, providing key technical support for the intelligent transformation of the textile industry.

[0041] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A feeding mechanism for a quilting and embroidery machine, characterized in that, include: The U-shaped support frame serves as the base for the feeding mechanism of the quilting machine. Vertical grooves for mounting feeding roller shafts are provided on both the left and right sides of the base. The support roller mechanism has a double support roller assembly that can be movably arranged laterally at the same height position on both sides of the U-shaped support frame. The double support roller assembly rolls to support the two shaft extensions of the feeding roller.

2. The feeding mechanism of the quilting and embroidery machine according to claim 1, characterized in that: The U-shaped support frame includes a first vertical plate (1), a second vertical plate (2), and a crossbeam (3). The first vertical plate (1) and the second vertical plate (2) are symmetrically arranged on the left and right sides. There are at least two crossbeams (3) that are connected to the bottom ends of the first vertical plate (1) and the second vertical plate (2) in a parallel position.

3. The feeding mechanism of the quilting and embroidery machine according to claim 2, characterized in that: The vertical channel (11) is located in the middle of the first vertical plate (1) and the second vertical plate (2), and is opened vertically downward along the upper edge of the first vertical plate (1) and the second vertical plate (2). The width of the vertical channel is greater than the outer diameter of the shaft extension of the feeding roller.

4. The feeding mechanism of the quilting and embroidery machine according to claim 2, characterized in that: The transmission rollers (8) connected to the two shaft extensions of the feeding roller shaft (7) are located on the outside of the first vertical plate (1) and the second vertical plate (2), respectively.

5. The feeding mechanism of the quilting and embroidery machine according to claim 2, characterized in that: The double-support roller assembly is movably disposed within a slide (4) opened laterally on the first vertical plate (1) or the second vertical plate (2), and the slides (4) on the first vertical plate (1) and the second vertical plate (2) are disposed at the same height.

6. The feeding mechanism of the quilting and embroidery machine according to claim 5, characterized in that: The dual support roller assembly includes a first slider (5) and a second slider (6) matched and disposed in the slide rail (4). The first slider (5) is connected to the first support roller (10) outside the first vertical plate (1) or the second vertical plate (2). The second slider is connected to the second support roller (9) outside the first vertical plate (1) or the second vertical plate (2). The first slider (5) and the second slider (6) are both disposed in the slide rail (4) in an adjustable position by means of fixing bolts.

7. The feeding mechanism of the quilting and embroidery machine according to claim 6, characterized in that: The first support roller (10) and the second support roller (9) simultaneously roll in contact with the transmission roller (8).

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