Automatic positioning device for three-dimensional quilting of a core

Abstract

The utility model discloses a kind of for three-dimensional quilting automatic positioning device of core, including workbench, the workbench is sequentially provided with: symmetrically arranged in the pressing plate assembly of the workbench both sides in the direction of core conveying, the pressing plate assembly has the upper pressing plate of vertical floating and fixed lower pressing plate, and upper pressing plate has the expansion guide portion of gradually expanding along the core feeding direction;Upper pressing plate is rotatably provided with upper pressing wheel.The three-dimensional quilting automatic positioning device for core utilizes the expansion guide portion of gradually expanding, so that core enters quilting station with flat state, provides reliable guarantee for high-quality three-dimensional quilting.The upper pressing plate of vertical floating and fixed lower pressing plate constitute self-adapting adjustable conveying channel, can flexibly adapt to the core processing demand of different thickness, improves the versatility and processing quality consistency of equipment.

Description

Technical Field

[0001] This utility model relates to the field of home decoration auxiliary machinery technology, specifically to an automatic positioning device for three-dimensional quilting of quilt cores. Background Technology

[0002] The warmth, comfort, and lifespan of a comforter core, as the filling layer of home textiles, largely depend on its internal quilting process. Three-dimensional quilting, through multi-layered and patterned sewing of the comforter's fabric, filling, and backing, not only prevents the filling from being evenly distributed and avoids clumping, but also enhances the product's three-dimensional aesthetics.

[0003] An automated quilting machine disclosed in CN113215735B includes a quilting mechanism and a moving mechanism. The moving mechanism includes a moving frame, characterized in that it includes a mounting frame mounted on the moving frame and multiple sets of rollers slidably mounted on the mounting frame. Each set of rollers has two rollers arranged vertically side by side. A drive clamping assembly for driving each set of rollers to clamp material is mounted on the mounting frame, and a drive moving assembly for driving each set of rollers to move is mounted on the mounting frame.

[0004] However, the roller assembly in the aforementioned patent primarily functions to "clamp" and "traction" the material, preventing it from moving backward in the conveying direction. But for a quilt insert, a fluffy material prone to lateral shrinkage and wrinkling during transport, this solution lacks a mechanism to actively or passively spread it laterally. The quilt insert enters the quilting area directly without being spread, resulting in distorted quilting patterns, uneven stress on the quilting lines, and even localized material buildup, severely impacting the final product's aesthetics and quality. Utility Model Content

[0005] The purpose of this invention is to provide an automatic positioning device for three-dimensional quilting of comforters, in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a three-dimensional quilting automatic positioning device for quilt cores, comprising a worktable, wherein the worktable is sequentially arranged along the quilt core conveying direction with: The pressure plate assemblies are symmetrically arranged on both sides of the worktable. The pressure plate assemblies have an upper pressure plate that can float vertically and a lower pressure plate that is fixed. The upper pressure plate has an expansion guide that gradually expands along the core feeding direction. An upper pressure wheel is rotatably mounted on the upper pressure plate; A quilting machine positioned across the outlet side of the expansion guide section; The take-up roller is located on the other side of the worktable opposite to the expansion guide section.

[0007] Preferably, the lower pressure plate is rotatably provided with a lower pressure wheel that corresponds to the position of the upper pressure wheel and moves synchronously.

[0008] Preferably, it also includes a drive assembly for driving the upper pressure wheel, comprising: A lower fixing plate that is fixedly mounted on the lower pressure plate; Drive shaft; The drive wheel is connected to the lower fixed plate via a floating connection structure and can float relative to the lower fixed plate; The first transmission belt connects the drive shaft and the drive wheel; A second transmission belt is provided between the drive wheel and the upper pressure wheel.

[0009] Preferably, the drive shaft is also provided on the lower pressure plate, and the drive shaft and the driven shaft are linked by a gear meshing mechanism.

[0010] Preferably, the lower fixed plate is also rotatably provided with a first pulley and a second pulley for tensioning the first transmission belt.

[0011] Preferably, the upper pressure plate and the lower pressure plate form a height-adjustable conveying channel.

[0012] Preferably, the take-up roller is provided with a sliding seat that slides radially, and the take-up roller is provided with an elastic element for locking the sliding seat into the quilt core.

[0013] Preferably, the device also includes a fixed rod rotatably mounted on the sliding seat, and a limiting seat for locking the fixed rod is slidably mounted on the take-up roller.

[0014] Preferably, the expansion guide has a guide surface, and the guide surface is a smooth curved surface with a low coefficient of friction.

[0015] Preferably, it also includes an assembly plate for assembling the take-up roll.

[0016] In the above technical solution, the automatic positioning device for three-dimensional quilting of comforters provided by this utility model has the following beneficial effects: Utilizing a gradually expanding guide section, the comforter enters the quilting station in a flat state, providing a reliable guarantee for high-quality three-dimensional quilting. The vertically floating upper pressure plate and the fixed lower pressure plate constitute an adaptively adjustable conveying channel, which can flexibly adapt to the processing needs of comforters of different thicknesses, improving the versatility of the equipment and the consistency of processing quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A three-dimensional schematic diagram of the overall embodiment of this utility model; Figure 2 This is a structural diagram of the pressure plate assembly provided in an embodiment of the present utility model; Figure 3 Front view of the drive shaft and driven shaft provided in an embodiment of this utility model; Figure 4 This is a schematic diagram of the internal structure of the lower pressure plate provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the winding roller structure provided in an embodiment of the present utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Workbench; 11. Assembly plate; 2. Quilting machine; 31. Upper pressure plate; 32. Lower pressure plate; 33. Sliding column; 34. Guide surface; 35. Upper fixed plate; 36. Lower fixed plate; 361. First pulley; 362. Second pulley; 363. Slide groove; 364. First transmission belt; 4. Take-up roller; 41. Sliding seat; 42. Fixed rod; 43. Limiting seat; 44. Sliding rod; 5. Drive shaft; 51. Upper pressure roller; 52. Lower pressure roller; 521. Driven shaft; 53. Feed roller; 54. Anti-slip belt; 55. Second transmission belt; 56. Drive wheel; 561. Sliding seat. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-5 As shown, a three-dimensional quilting automatic positioning device for a comforter insert includes a worktable 1, on which the following are arranged sequentially along the comforter insert conveying direction: The pressure plate assemblies are symmetrically arranged on both sides of the worktable 1. The pressure plate assemblies have an upper pressure plate 31 that can float vertically and a lower pressure plate 32 that is fixed. The upper pressure plate 31 has an expansion guide portion that gradually expands along the core feeding direction. An upper pressure wheel 51 is rotatably mounted on the upper pressure plate 31; Quilting machine 2 is mounted across the outlet side of the expansion guide section; The take-up roller 4 is located on the other side of the worktable 1 opposite to the expansion guide section.

[0022] Specifically, the upper pressure plate 31 and the lower pressure plate 32 form a height-adjustable conveying channel. A sliding column 33 is fixedly installed on the lower pressure plate 32 for the upper pressure plate 31 to slide on, allowing the upper pressure plate 31 to adjust adaptively according to the thickness of the quilt core. A lower pressure roller 52, corresponding to and synchronously moving with the upper pressure roller 51, is rotatably mounted on the lower pressure plate 32. The specific structure of both is detailed below, and together they form a roller group for clamping and conveying the quilt core. The upper pressure plate 31 includes an upper fixed plate 35, on which multiple upper pressure rollers 51 are rotatably mounted. It also includes feed rollers 53 rotatably mounted on adjacent surfaces of the upper pressure plate 31 and the lower pressure plate 32. Adjacent feed rollers 53 are connected by an anti-slip belt 54. The feed rollers 53 can be driven by a motor or a sprocket to rotate, ensuring continuous operation of the anti-slip belt 54.

[0023] Furthermore, the expansion guide has a guide surface 34, which is a smooth curved surface with a low coefficient of friction. The structural feature of the expansion guide is that it gradually expands along the feeding direction of the quilt core to form a gradually expanding channel, which is used to guide and laterally unfold the quilt core during the conveying process.

[0024] During operation, the fluffy comforter blank is fed in from the inlet end of the expansion guide section of the pressure plate assembly on both sides. Under the combined action of the conveying roller group consisting of the upper pressure roller 51 and the lower pressure roller 52, and the auxiliary feeding assembly consisting of the feed roller 53 and the anti-slip belt 54, the comforter is continuously conveyed forward. During this process, due to the gradually expanding structure of the expansion guide section, the comforter is passively and smoothly unfolded to both sides, thereby eliminating wrinkles and achieving a suitable width and flatness. The unfolded comforter is then conveyed to the quilting machine 2 for precise three-dimensional quilting. Finally, the quilted comforter is automatically wound and collected by the take-up roller 4, completing the entire processing flow.

[0025] In the aforementioned patent, a gradually expanding guide section is used to ensure that the quilt core enters the quilting station in a flat state, providing a reliable guarantee for high-quality three-dimensional quilting. The vertically floating upper pressure plate 31 and the fixed lower pressure plate 32 constitute an adaptively adjustable conveying channel, which can flexibly adapt to the processing needs of quilt cores of different thicknesses, improving the versatility of the equipment and the consistency of processing quality.

[0026] As a further embodiment of this utility model, a drive assembly for driving the upper pressure roller 51 is also included, comprising: A lower fixing plate 36 is fixedly mounted on the lower pressure plate 32; Drive shaft 5; The drive wheel 56 is connected to the lower fixed plate 36 via a floating connection structure and can float relative to the lower fixed plate 36; The first transmission belt 364 connects the drive shaft 5 and the drive wheel 56. A second transmission belt 55 is provided between the drive wheel 56 and the upper pressure wheel 51.

[0027] Specifically, the lower fixed plate 36 and the upper fixed plate 35 are slidably connected by a keyway. The drive shaft 5 can be the output shaft of a motor. A slide block 561 is rotatably sleeved on the shaft of the drive wheel 56, and the slide block 561 is slidably disposed through a groove 363 opened on the lower fixed plate 36. It also includes a driven shaft 521 disposed on the lower pressure plate 32. The drive shaft 5 and the driven shaft 521 are linked by a gear meshing mechanism.

[0028] Furthermore, when the drive shaft 5 rotates under the drive of the motor, power is transmitted to the drive wheel 56 via the first transmission belt 364, causing it to rotate synchronously. The drive wheel 56 is connected to the multiple upper pressure rollers 51 arranged in a linear array via a second transmission belt 55. The rotation of the drive wheel 56 drives all the upper pressure rollers 51 to rotate synchronously via the second transmission belt 55. When the thickness of the quilt core changes, the upper pressure plate 31, together with its internal upper fixed plate 35 and all the upper pressure rollers 51, can float vertically along the keyway as a whole. During this process, the drive wheel 56 adapts to this height change by sliding its slide 561 within the slide groove 363, thereby ensuring that the second transmission belt 55 always maintains an effective transmission connection and that power transmission is not interrupted. When the drive shaft 5 rotates, it drives the driven shaft 521 to rotate synchronously but in the opposite direction via the gear meshing mechanism, thereby driving the lower pressure roller 52 mounted on the driven shaft 521 to rotate. Ultimately, the upper pressure rollers 51 and the lower pressure rollers 52 rotate synchronously towards each other, jointly completing the stable delivery of the quilt core.

[0029] As another embodiment of this utility model, a first pulley 361 and a second pulley 362 for tensioning the first transmission belt 364 are rotatably provided on the lower fixed plate 36.

[0030] Specifically, the first pulley 361 and the second pulley 362 together constitute a tensioning mechanism for maintaining the stability of the first transmission belt 364. The first pulley 361 and the second pulley 362 can effectively prevent the first transmission belt 364 from loosening or slipping due to long-term operation or load changes. Even when the drive wheel 56 changes position due to the floating of the upper pressure plate 31, a stable tension can be maintained by the pulleys, ensuring that the power transmission from the drive shaft 5 to the drive wheel 56 is continuous, stable, and without loss of rotation.

[0031] As a further embodiment of this utility model, it also includes an assembly plate 11 for assembling the take-up roller 4. The take-up roller 4 is rotatably mounted on the assembly plate 11 via a bearing. A sliding seat 41 is slidably disposed on the take-up roller 4 in the radial direction, and an elastic element is provided on the take-up roller 4 for locking the quilt core with the sliding seat 41.

[0032] Specifically, it also includes a fixed rod 42 rotatably mounted on the sliding seat 41, and a limiting seat 43 slidably mounted on the take-up roller 4 for locking the fixed rod 42. The take-up roller 4 is rotatably mounted on the mounting plate 11 via bearings at both ends and is driven to rotate by a drive device such as a motor. A sliding rod 44 is radially mounted on the roller body of the take-up roller 4, and the sliding seat 41 is slidably connected to the sliding rod 44. An elastic element, such as a compression spring, acts on the sliding seat 41 and provides a continuous preload force pointing towards the axis of the take-up roller 4, so that it is in close contact with the roller surface in its natural state.

[0033] Furthermore, the operator lays the quilted end of the comforter flat on the surface of the take-up roller 4, then presses down on the free end of the fixing rod 42, causing it to rotate around the axis to a horizontal position parallel to the surface of the take-up roller 4. The operator then slides the limiting seat 43 radially along the take-up roller 4, moving it above the free end of the fixing rod 42, and then releases the pressure. Under the pre-tension of the elastic element, the limiting seat 43 applies downward pressure, firmly pressing the fixing rod 42 against the surface of the take-up roller 4. At this point, the end of the comforter is tightly clamped between the fixing rod 42 and the surface of the take-up roller 4, achieving reliable fixation.

[0034] When it is necessary to unload the wound comforter, the operator first pulls or lifts the limit seat 43 upwards to overcome the preload of the elastic element and slide it radially away from the axis of the take-up roller 4. This action releases the pressure and constraint on the free end of the fixing rod 42. At this time, the operator can flip the free end of the fixing rod 42 upwards to make it rotate around the axis. After the fixing rod 42 is flipped upwards, the comforter is released.

[0035] Working Principle: At the start of operation, the fluffy comforter blank is fed in from the inlet end of the expansion guide section of the pressure plate assembly on both sides. This expansion guide section structure gradually expands along the feed direction of the comforter, allowing the comforter to passively and smoothly unfold to both sides during the conveying process, effectively eliminating wrinkles. In terms of conveying power, the device relies on the combined action of the conveying roller group consisting of the upper pressure roller 31 and the lower pressure roller 32, and the auxiliary feeding assembly consisting of the feed roller 53 and the anti-slip belt 54 to continuously and stably pull the comforter. Among them, the upper pressure plate 31 is connected to the lower pressure plate 32 through the sliding column 33, so that the height of the conveying channel formed between the two can be adaptively adjusted to flexibly adapt to comforters of different thicknesses.

[0036] After being unfolded, the comforter insert is conveyed to the quilting machine 2 for precise three-dimensional quilting. After quilting, the comforter insert enters the winding stage. The operator lays the quilted end of the comforter insert flat on the surface of the winding roller 4, presses the fixing rod 42 downwards to a horizontal position, and then slides the limiting seat 43 above the free end of the fixing rod 42 and presses it firmly. Under the action of the elastic element, the limiting seat 43 continuously applies pressure, firmly clamping the end of the comforter insert onto the surface of the winding roller 4. The winding roller 4 rotates under the drive of the drive device, and automatic winding begins.

[0037] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic positioning device for three-dimensional quilting of a comforter insert, comprising a worktable (1), characterized in that, The workbench (1) is provided with the following components sequentially along the core conveying direction: The pressure plate assembly is symmetrically arranged on both sides of the worktable (1). The pressure plate assembly has an upper pressure plate (31) that can float vertically and a lower pressure plate (32) that is fixed. The upper pressure plate (31) has an expansion guide that gradually expands along the core feeding direction. An upper pressure wheel (51) is rotatably mounted on the upper pressure plate (31); A quilting machine (2) is installed across the outlet side of the expansion guide section; The take-up roller (4) is located on the other side of the worktable (1) opposite to the expansion guide.

2. The automatic positioning device for three-dimensional quilting of a comforter core according to claim 1, characterized in that, The lower pressure plate (32) is rotatably provided with a lower pressure wheel (52) that corresponds to the position of the upper pressure wheel (51) and moves synchronously.

3. The automatic positioning device for three-dimensional quilting of a comforter core according to claim 1, characterized in that, It also includes a drive assembly for driving the upper pressure roller (51), comprising: A lower fixing plate (36) is fixedly installed on the lower pressure plate (32); Drive shaft (5); The drive wheel (56) is connected to the lower fixed plate (36) via a floating connection structure and can float relative to the lower fixed plate (36); The first transmission belt (364) connects the drive shaft (5) and the drive wheel (56). A second transmission belt (55) is provided between the drive wheel (56) and the upper pressure wheel (51).

4. The automatic positioning device for three-dimensional quilting of a comforter core according to claim 3, characterized in that, It also includes a driven shaft (521) disposed on the lower pressure plate (32), and the drive shaft (5) and the driven shaft (521) are linked by a gear meshing mechanism.

5. The automatic positioning device for three-dimensional quilting of a comforter core according to claim 3, characterized in that, The lower fixed plate (36) is also rotatably provided with a first pulley (361) and a second pulley (362) for tensioning the first transmission belt (364).

6. The automatic positioning device for three-dimensional quilting of a comforter core according to claim 1, characterized in that, The upper pressure plate (31) and the lower pressure plate (32) form a height-adjustable conveying channel.

7. The automatic positioning device for three-dimensional quilting of a comforter core according to claim 1, characterized in that, A sliding seat (41) is slidably disposed on the take-up roller (4) along the radial direction, and an elastic element is provided on the take-up roller (4) for locking the quilt core with the sliding seat (41).

8. The automatic positioning device for three-dimensional quilting of a comforter core according to claim 1, characterized in that, It also includes a fixed rod (42) rotatably mounted on the sliding seat (41), and a limiting seat (43) for locking the fixed rod (42) is slidably mounted on the take-up roller (4).

9. The automatic positioning device for three-dimensional quilting of a comforter core according to claim 1, characterized in that, The expansion guide has a guide surface (34), and the guide surface (34) is a smooth curved surface with a low coefficient of friction.

10. The automatic positioning device for three-dimensional quilting of a comforter core according to claim 1, characterized in that, It also includes an assembly plate (11) for assembling the take-up roll (4).

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