Anti-curling fabric processing drawing machine

Abstract

The utility model relates to clothing processing technical field, concretely is a kind of anti-curling's clothing processing with cloth spreading machine, including processing table, the top of processing table is erected with cloth spreading frame, and the anti-curling roller located at the edge of the both sides of processing table is arranged on cloth spreading frame, the axis of two anti-curling rollers is inclined to the outside of processing table, and the eight-shaped structure of small middle distance, large two-end distance along cloth spreading direction is formed;Lifting unit is further equipped on cloth spreading frame, the lifting unit is connected with each anti-curling roller one-to-one, for driving anti-curling roller to move up and down;The utility model is by setting two anti-curling rollers, since the axis of two anti-curling rollers is inclined to the outside of processing table, the eight-shaped structure of small middle distance, large two-end distance along cloth spreading direction is formed.In the cloth spreading process, the edge of cloth can be gradually smoothed along the moving track of cloth spreading frame, gradually exerting flattening force from the middle region to the edge, effectively inhibiting the tendency of curling caused by elastic fiber shrinkage.

Description

Technical Field

[0001] This utility model relates to the field of garment processing technology, specifically to a fabric spreading machine for garment processing that prevents edge curling. Background Technology

[0002] Fabric spreading machines are key pieces of equipment in the garment processing industry. Their core function is to unfold, flatten, and layer rolls of fabric according to production needs, providing a flat and standardized fabric substrate for subsequent cutting processes. They play an irreplaceable role in improving cutting accuracy, reducing fabric waste, and increasing production efficiency.

[0003] A fabric spreading machine typically includes core structures such as a processing table, a fabric unwinding unit, a fabric end clamping unit, and a fabric cutting unit. The processing table serves as the basic platform for laying the fabric flat, providing a horizontal support surface. The fabric unwinding unit, usually composed of a fixed frame and unwinding rollers, carries the rolled fabric and ensures orderly unwinding. The fabric end clamping unit grips the fabric end. The fabric cutting unit is equipped with a cutting blade to cut the laid-out fabric to a set length. The fabric spreading process is roughly as follows: First, the initial end of the rolled fabric is released by the fabric unwinding unit. The fabric end clamping unit then grips the fabric end and moves it along the length of the processing table, continuously releasing the fabric from the unwinding unit and laying it flat on the processing table. When the laid-out length reaches the preset value, the fabric cutting unit cuts the fabric, completing the laying of a single layer of fabric.

[0004] During the fabric spreading process described above, as the cut fabric is layered onto the processing table, its edges are prone to curling upwards due to the recoil stress of the elastic fibers, forming arc-shaped rolled edges. As the number of layers increases, the cumulative effect of interlayer curling leads to a significant decrease in edge alignment accuracy. In this situation, when the cutting blade in subsequent processes cuts along a preset trajectory, the fabric fibers in the curled area will be excessively stretched or compressed due to uneven stress, resulting in quality defects such as rough edges and gaps on the cut pieces. Therefore, we propose a fabric spreading machine for garment processing that prevents curling to effectively solve these problems. Utility Model Content

[0005] The purpose of this utility model is to provide a fabric spreading machine for garment processing that prevents edge curling, in order to solve the problem of edge curling that easily occurs at the edges of fabric layers in the prior art as mentioned in the background.

[0006] This utility model is achieved through the following technical solution: a fabric spreading machine for garment processing that prevents edge curling, including a processing table, one end of which is provided with a fabric unwinding unit and a fabric cutting unit, and a fabric spreading frame is mounted on the top of the processing table. The fabric spreading frame can move along the length of the processing table, and a fabric end clamping unit is installed on the top of the fabric spreading frame.

[0007] Anti-rolling rollers are installed on the fabric laying frame at the two edges of the processing table. The axes of the two anti-rolling rollers are inclined to the outside of the processing table, forming a figure-eight structure with a small middle spacing and a large end spacing along the fabric laying direction.

[0008] A lifting unit is also provided on the fabric laying frame. The lifting unit is connected to each anti-roll roller in a corresponding manner and is used to drive the anti-roll roller to move up and down.

[0009] Optionally, the fabric unwinding unit includes a fixed frame fixed to the top of the processing table, and an unwinding roller extending along the width direction of the processing table is rotatably connected to the fixed frame.

[0010] Optionally, the fabric cutting unit includes a mounting frame fixed to the top of the processing table, a first electric guide rail extending along the width direction of the processing table is mounted on the mounting frame, and a cutting blade is mounted on the slider of the first electric guide rail.

[0011] Optionally, a second electric guide rail is installed on each side of the processing table, and each second electric guide rail extends along the length of the processing table. The two ends of the fabric laying frame are fixed to the sliders of the two second electric guide rails respectively.

[0012] Optionally, the fabric end clamping unit includes several electric grippers, each of which is mounted on the top of the fabric laying frame and spaced apart along the width of the fabric laying frame.

[0013] Optionally, the lifting unit includes several parallel and spaced connecting rods, each connecting rod moving vertically through the fabric laying frame; a limit plate is fixed at the upper end of each connecting rod, and a roller frame is fixed at the lower end of each connecting rod, the anti-rolling roller being rotatably connected to the roller frame; a compression spring is sleeved on each connecting rod between the roller frame and the fabric laying frame.

[0014] Optionally, the lifting unit further includes a permanent magnet fixed to the top of the roller frame, and an electromagnet installed on the fabric laying frame opposite to the permanent magnet.

[0015] Compared with the prior art, this utility model provides a fabric spreading machine for garment processing that prevents edge curling, which has the following beneficial effects:

[0016] 1. This utility model incorporates two anti-rolling rollers. Because the axes of these rollers are inclined outwards from the processing table, they form a figure-eight structure with a small gap in the middle and a large gap at both ends along the fabric laying direction. During the fabric laying process, the fabric edges can be progressively smoothed along the movement trajectory of the fabric laying frame, gradually applying a smoothing force from near the center towards the edge, effectively suppressing the tendency of elastic fibers to curl due to shrinkage.

[0017] 2. By setting up a lifting unit, when the fabric laying frame is reset, the lifting unit drives the anti-rolling roller to move upward and detach from the fabric surface, realizing a one-way action mechanism that only contacts and smooths the fabric during the laying stage and does not contact it during the reset stage. This avoids the reverse dragging of the laid fabric during the reset process and significantly improves the stability and reliability of the anti-rolling effect. Attached Figure Description

[0018] Figure 1 This is a top view of the present invention.

[0019] Figure 2 This is a side view of the present invention.

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0021] In the diagram: 1. Processing table; 2. Fabric unwinding unit; 3. Fabric cutting unit; 4. Fabric laying frame; 5. Fabric end clamping unit; 6. Anti-rolling roller; 7. Lifting unit; 701. Connecting rod; 702. Limiting plate; 703. Roller frame; 704. Compression spring; 705. Permanent magnet; 706. Electromagnet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 3 A fabric spreading machine for garment processing with anti-curling features includes a processing table 1, the top surface of which is a flat fabric laying reference surface. One end of the processing table 1 is provided with a fabric unwinding unit 2 and a fabric cutting unit 3, which are arranged side by side along the length of the processing table 1, together forming the front-end module for fabric pretreatment.

[0024] The fabric unwinding unit 2 includes a fixed frame fixed to the top of the processing table 1, and an unwinding roller extending along the width direction of the processing table 1 is rotatably connected to the fixed frame. The outer diameter of the unwinding roller is adapted to the inner diameter of the fabric roll to be processed.

[0025] Secondly, the fabric cutting unit 3 includes a mounting bracket fixed to the top of the processing table 1. A first electric guide rail extending along the width direction of the processing table 1 is mounted on the mounting bracket, and a cutting blade is mounted on the slider of the first electric guide rail. When the first electric guide rail is working, it can drive the cutting blade to move along the width direction of the processing table 1, thereby cutting the fabric.

[0026] In this embodiment, a fabric laying frame 4 is mounted on the top of the processing table 1, and the fabric laying frame 4 can move along the length of the processing table 1. Specifically, second electric guide rails are installed on both sides of the processing table 1, and each second electric guide rail extends along the length of the processing table 1. The two ends of the fabric laying frame 4 are fixed to the sliders of the two second electric guide rails respectively. Through synchronous driving of the two guide rails, the fabric laying frame 4 can move smoothly.

[0027] Additionally, a fabric end clamping unit 5 is installed on the top of the fabric laying frame 4. The fabric end clamping unit 5 includes several electric grippers, each of which is installed on the top of the fabric laying frame 4 and spaced apart along the width direction of the fabric laying frame 4. Each gripper's clamping end is equipped with a rubber anti-slip pad. When the fabric laying frame 4 moves, the fabric end clamping unit 5 grips the free end of the fabric and drives it to unfold along the length direction of the processing table 1, forming a continuous flat laying action.

[0028] To address the issue of curling edges that easily occur at the fabric overlapping edges in existing technologies, the following design is proposed:

[0029] Anti-rolling rollers 6 are installed on the fabric laying frame 4, located at the two edges of the processing table 1. The axes of the two anti-rolling rollers 6 are inclined outwards from the processing table 1, forming a figure-eight structure with a small gap in the middle and a large gap at both ends along the fabric laying direction. When the fabric laying frame 4 moves along the length of the processing table 1, the two anti-rolling rollers 6 can gradually smooth the fabric along the moving trajectory: in the initial stage, the two anti-rolling rollers 6 first contact the area near the middle of the fabric, and apply a basic smoothing force through the friction between the roller surface and the fabric; as the fabric laying frame 4 continues to move, the contact position of the two anti-rolling rollers 6 gradually transitions to the two edges of the fabric, thereby specifically counteracting the shrinkage stress of the elastic fibers and effectively suppressing the arc-shaped curling of knitted fabrics and the hard folding tendency of woven fabrics.

[0030] In another embodiment of this application, a lifting unit 7 is also provided on the fabric laying frame 4. The lifting unit 7 is connected to each anti-rolling roller 6 in a one-to-one correspondence and is used to drive the anti-rolling roller 6 to move up and down. When the fabric laying frame 4 moves in the fabric laying direction (i.e., performs the fabric laying action), the lifting unit 7 drives the anti-rolling roller 6 to move downward, so that the roller surface keeps in contact with the fabric surface, and completes the anti-rolling through the aforementioned gradual smoothing action. When the fabric laying frame 4 moves in the opposite direction (i.e., the resetting action), the lifting unit 7 synchronously drives the anti-rolling roller 6 to move upward, so that the roller surface detaches from the already laid fabric surface, forming a one-way action mechanism of "contacting and smoothing only in the fabric laying stage and completely detaching in the resetting stage". This mechanism can effectively avoid the anti-rolling roller 6 generating reverse friction force on the edge of the already laid fabric due to the figure-eight structure during the resetting process, preventing the flat edge from being lifted again or causing interlayer misalignment.

[0031] The following is a description of the lifting unit 7:

[0032] The lifting unit 7 includes several parallel and spaced connecting rods 701. Each connecting rod 701 moves vertically through the fabric laying frame to ensure guiding stability during the lifting process. A limit plate 702 is fixed to the upper end of each connecting rod 701 to limit the maximum downward stroke of the connecting rod 701 and prevent excessive downward pressure from the anti-rolling roller 6, which could damage the fabric. A roller frame 703 is fixed to the lower end of each connecting rod 701. The anti-rolling roller 6 is rotatably connected to the roller frame 703, allowing the anti-rolling roller 6 to roll synchronously with the fabric laying action when in contact with the fabric, reducing frictional damage to the fabric surface.

[0033] A compression spring 704 is fitted on each connecting rod 701 between the roller frame 703 and the fabric laying frame 4. In its natural state, the compression spring 704 is in a pre-compressed state, and the continuous elastic thrust keeps the roller frame 703 and the anti-rolling roller 6 under downward base pressure, ensuring stable contact with the fabric surface.

[0034] To achieve active lifting control of the anti-roller 6, the lifting unit 7 also includes a permanent magnet 705 fixed to the top of the roller frame 703, and an electromagnet 706 installed on the fabric laying frame 4 opposite to the permanent magnet 705. When the electromagnet 706 is energized, it generates a magnetic field that attracts the permanent magnet 705. The magnetic attraction pulls the permanent magnet 705 and the roller frame 703 upward against the elastic force of the compression spring 704, thereby driving the anti-roller 6 to rise synchronously and detach from the fabric surface. When the electromagnet 706 is de-energized, the magnetic attraction disappears, and the elastic restoring force of the compression spring 704 pushes the roller frame 703 and the anti-roller 6 downward to reset, so that the anti-roller 6 re-contacts the fabric surface.

[0035] As the fabric layer thickness increases, the anti-roll roller 6 will rise and compress the spring. At this time, the spring force increases synchronously with the compression amount, ensuring that the anti-roll roller 6 always applies a stable pressing force to the edge of the fabric, avoiding failure due to insufficient pressure caused by the increase in thickness, and preventing excessive pressure from causing the fabric to stretch and deform, thus maintaining the anti-rolling effect continuously during the multi-layer stacking process.

[0036] Working principle: The free end of the fabric on the fabric unwinding unit 2 extends below the fabric cutting unit 3 to the initial position of the fabric laying frame 4. At this time, the free end of the fabric is clamped and fixed by the electric gripper of the fabric end clamping unit 5. At the same time, the electromagnet 706 of the lifting unit 7 is de-energized, the compression spring 704 releases its elastic force, and pushes the roller frame 703 and the anti-roll roller 6 downward, so that the two anti-roll rollers 6 keep in contact with the surface of the lower layer of already laid fabric, forming an initial elastic pre-pressure.

[0037] The second electric guide rail drives the fabric laying frame 4 to move along the length of the processing table (away from the fabric unwinding unit 2), continuously releasing the fabric from the unwinding rollers, and the fabric gradually unfolds on the surface of the processing table. As the fabric laying frame 4 moves, the two anti-rolling rollers 6, due to their V-shaped structure (small distance between the middle and large distance between the ends), first apply pressure to the middle area of ​​the lower layer of already laid fabric, and then the contact position gradually expands to the two edges along the width of the fabric. The lateral component force generated by the rolling friction of the roller surface is specifically offset to counteract the elastic recoil stress at the edge, achieving a gradual smoothing from the center to the edge, and suppressing the tendency of curling at the source.

[0038] When the fabric laying frame 4 moves to the preset length, it stops moving, and the fabric end clamping unit 5 keeps the fabric in a clamping state to keep it taut. At this time, the first electric guide rail of the fabric cutting unit 3 drives the cutting blade to move along the width direction of the processing table 1 to cut the spread fabric and complete the laying of a single layer of fabric.

[0039] After cutting, the fabric clamping unit 5 releases the fabric, and the fabric laying frame 4 continues to move a short distance in the original direction, so that the anti-rolling roller 6 is completely removed from the currently laid fabric area. Then, the electromagnet 706 of the lifting unit 7 is energized, generating a magnetic force to pull the permanent magnet 705 and the roller frame 703 upward, and the anti-rolling roller 6 rises synchronously to avoid friction with the already laid fabric during the reset process, which could cause the edges to curl.

[0040] Finally, the fabric laying frame 4 returns to its initial position along the original path, the electromagnet 706 is de-energized again, and the anti-rolling roller 6 is reset and adheres to the surface of the new layer of fabric under the action of the compression spring 704, thus entering the next round of fabric laying cycle, thereby achieving continuous and flat laying of multiple layers of fabric.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fabric processing machine without hemming, comprising a processing table (1), one end of the processing table (1) is provided with a fabric unwinding unit (2) and a fabric cutting unit (3), characterized in that, The top of the processing table (1) is provided with a fabric laying frame (4), which can move along the length of the processing table (1). A fabric end clamping unit (5) is installed on the top of the fabric laying frame (4). On the fabric laying frame (4), there are anti-rolling rollers (6) located at the two sides of the processing table (1). The axes of the two anti-rolling rollers (6) are inclined to the outside of the processing table (1) to form a figure-eight structure with a small middle spacing and a large end spacing along the fabric laying direction. A lifting unit (7) is also provided on the fabric laying frame (4). The lifting unit (7) is connected to each anti-rolling roller (6) in a one-to-one correspondence and is used to drive the anti-rolling roller (6) to move up and down.

2. The anti-rolling fabric spreading machine for garment processing according to claim 1, characterized in that: The fabric unwinding unit (2) includes a fixed frame fixed to the top of the processing table (1), and an unwinding roller extending along the width direction of the processing table (1) is rotatably connected to the fixed frame.

3. The anti-rolling fabric spreading machine for garment processing according to claim 1, characterized in that: The fabric cutting unit (3) includes a mounting frame fixed to the top of the processing table (1), a first electric guide rail extending along the width direction of the processing table (1) is mounted on the mounting frame, and a cutting blade is mounted on the slider of the first electric guide rail.

4. The anti-rolling fabric spreading machine for garment processing according to claim 1, characterized in that: The processing table (1) is equipped with second electric guide rails on both sides. Each second electric guide rail extends along the length of the processing table (1). The two ends of the fabric laying frame (4) are fixed to the sliders of the two second electric guide rails respectively.

5. A fabric spreading machine for garment processing with anti-rolling edge as described in claim 1, characterized in that: The fabric end clamping unit (5) includes several electric grippers, each of which is installed on the top of the fabric laying frame (4) and is spaced apart along the width direction of the fabric laying frame (4).

6. The anti-rolling fabric spreading machine for garment processing according to claim 1, characterized in that: The lifting unit (7) includes several parallel and spaced connecting rods (701), each connecting rod (701) moving vertically through the fabric laying frame (4); a limit plate (702) is fixed at the upper end of each connecting rod (701), and a roller frame (703) is fixed at the lower end of each connecting rod (701), the anti-rolling roller (6) is rotatably connected to the roller frame (703); a compression spring (704) is sleeved on each connecting rod (701) between the roller frame (703) and the fabric laying frame (4).

7. A fabric spreading machine for garment processing with anti-rolling edge as described in claim 6, characterized in that: The lifting unit (7) also includes a permanent magnet (705) fixed to the top of the roller frame (703), and an electromagnet (706) is installed on the cloth laying frame (4) opposite to the permanent magnet (705).

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