Fabric emergency rag device for dyeing and finishing unit, weft straightening machine, dyeing and finishing unit

Abstract

The present invention relates to the field of emergency cutting, and specifically to an emergency fabric ripping device for a dyeing and finishing unit, a weft straightening machine, and a dyeing and finishing unit. The device includes a frame, a cloth storage assembly, a first cloth guide roller, a second cloth guide roller, and a rag assembly. The cloth storage assembly includes a roller seat and a cloth storage roller. The roller seat is configured to be movable in the up and down directions, and the cloth storage roller is rotatably supported on the roller seat; the first cloth guide roller and the second cloth guide roller are respectively rotatably supported on the frame and are both higher or lower than the cloth storage roller. The fabric on the dyeing and finishing running path bypasses the first cloth guide roller, the cloth storage roller, and the second cloth guide roller in turn; the rag assembly is connected to the roller seat and rises and falls synchronously with the roller seat; wherein, when the tension of the fabric exceeds a threshold value, the cloth storage assembly is driven to move in the up and down directions until the rag assembly cuts or punctures the fabric. The present invention can automatically, timely, and reliably form an incision on the fabric when the tension of the fabric suddenly increases, so that the fabric can be torn, thereby avoiding bending and breaking of the weft straightening machine roller body.

Description

Technical Field

[0001] The invention relates to the field of emergency cutting, and in particular to an emergency fabric ripping device for a dyeing and finishing unit, a weft straightening machine and a dyeing and finishing unit. Background Art

[0002] In the field of textile dyeing and finishing technology, padding, weft straightening and shaping are comprehensive process technologies often used in fabric processing. This process technology uses a padding machine to pad the fabric with process liquid, a weft straightening machine to correct the deformation of the fabric weft yarn, and a shaping machine to heat-set the fabric to improve the appearance and internal quality of the fabric, improve the fabric's wearing performance, and give the fabric special uses, making the fabric more perfect and adding value.

[0003] During the synchronous operation of the padder, weft straightener, and setting machine, there is a problem that cannot be ignored, that is, there are many abnormal conditions that can easily cause the fabric to be entangled on the roller of the padder. For example, the fabric absorbs too much water before entering the padder, causing the fabric to slip between the rollers, thus causing the fabric to be entangled on the rollers; the uneven tension of the fabric in the padder causes the fabric to deviate between the rollers, thus causing the fabric to be entangled on the rollers; when the operator operates the padder, the speed is too fast or too slow and the position of the fabric is not adjusted correctly, so that the fabric is entangled on the rollers; the surface of the roller is uneven, the surface is worn or there is dirt, so that the fabric is entangled on the rollers, and many other factors directly cause the fabric running direction between the padder and the weft straightener to be completely opposite to the fabric running direction between the weft straightener and the setting machine, resulting in a surge in the fabric tension between the padder cloth node and the setting machine feeding fabric node, so that the guide roller and the correction roller shaft head of the weft straightener are subjected to unstable alternating stress and the load on the roller body increases sharply, and the roller body is very easy to bend and break.

[0004] The bending and breaking of the rollers mentioned above bring risks and losses in many aspects to the entire production process:

[0005] (1) Safety risks: The bending or breaking of the weft straightening machine roller will cause some objects to splash or bounce, directly injuring the weft straightening machine operator, which poses a great threat to the worker's personal safety.

[0006] (2) Equipment damage: The cloth guide roller and correction roller of the weft straightening machine are deformed or broken due to excessive tension, and the motor and other related components of the weft straightening machine transmission system are damaged due to overload. It takes manpower, material resources and financial resources to repair or replace the damaged cloth guide roller and other equipment parts.

[0007] (3) Production line interruption: When equipment is damaged, it is necessary to clean up the tangled fabric and repair the damaged parts, which causes the production line to stop temporarily and reduces production efficiency. When repairing and replacing damaged equipment, the production line may be stopped for a long time, affecting delivery time and production plan, making it impossible for subsequent finishing, packaging and other processes to proceed normally, further disrupting the entire production process.

[0008] (4) Unstable quality: Even if the equipment is repaired and production resumes, the failure may have a potential impact on the quality of subsequent products, such as the smoothness and color uniformity of the fabric.

[0009] At present, the main solution to the problem of fabric tension surge between the fabric outlet node of the paving machine and the fabric feeding node of the setting machine is the fabric running direction between the paving machine and the weft straightening machine is the opposite of the fabric running direction between the weft straightening machine and the setting machine. There is a delay from noticing the tension surge to pressing the emergency stop button. In addition, the driving motors of the paving machine and the setting machine have inertia, so it is impossible to stop immediately after pressing the emergency stop button. There is also a delay from pressing the emergency stop button to completely stopping. Either of the two delays may cause the fabric to tighten quickly, resulting in bending or even breaking of the weft straightening machine roller.

[0010] Therefore, it is urgent to provide a solution to the problems existing in the prior art. Summary of the invention

[0011] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an emergency fabric ripping device for a dyeing and finishing unit, which can automatically, timely and reliably form an incision on the fabric when the fabric tension suddenly increases, so that the fabric can be torn, thereby avoiding bending and breaking of the weft straightening machine roller.

[0012] In order to solve the above technical problems, the technical solution of the present invention is: a fabric emergency rag device for a dyeing and finishing unit, comprising:

[0013] frame;

[0014] A cloth storage assembly, comprising a roller seat and a cloth storage roller, wherein the roller seat is configured to be movable along the direction of the rags, and the cloth storage roller is rotatably supported on the roller seat;

[0015] A first cloth guide roller and a second cloth guide roller are respectively rotatably supported on the frame and both extend beyond the cloth storage roller toward the same side in the cloth ripping direction, and the conveyed fabric bypasses the first cloth guide roller, the cloth storage roller and the second cloth guide roller in sequence;

[0016] A rag assembly is connected to the roller seat, moves with the roller seat, and faces the fabric before it reaches the first fabric guide roller or is drawn out from the second fabric guide roller;

[0017] When the tension of the fabric exceeds a threshold value, the fabric storage assembly is driven to move in the rag direction until the rag assembly cuts or punctures the fabric.

[0018] Furthermore, a linear guide rail extending along the direction of the rags is provided on the frame, and the roller seat is slidably mounted on the linear guide rail.

[0019] Furthermore, the emergency fabric ripping device for the dyeing and finishing unit also includes an elastic element, which is arranged between the roller seat and the frame and is used to dampen the movement of the fabric storage assembly in the direction of reducing the amount of stored fabric.

[0020] Furthermore, the elastic element is a spring.

[0021] Furthermore, it also includes a support rod, one end of which is connected to the roller seat, and the other end passes through the frame. The spring is sleeved on the support rod and respectively abuts against the steps on the frame and the support rod.

[0022] Furthermore, a nut is threadedly connected to the support rod, and the nut forms the step on the support rod.

[0023] Furthermore, a pressure plate is mounted on the frame in an adjustable height, and the spring abuts against the pressure plate.

[0024] Further, at least one rag assembly is disposed on the upward side of the fabric width; or at least one rag assembly is disposed on both upward sides of the fabric width.

[0025] Furthermore, the rag assembly is installed on the roller seat via a widthwise displacement mechanism, and the widthwise displacement mechanism is used to drive the rag assembly to move along the width of the fabric.

[0026] The invention also relates to a weft straightening machine, comprising an emergency fabric ripping device for a dyeing and finishing unit.

[0027] The invention also relates to a dyeing and finishing device, comprising a fabric emergency rag device or a weft straightening machine for a dyeing and finishing unit.

[0028] After adopting the above technical scheme, when the fabric is wound on the roller of the rolling mill, so that the fabric running direction between the rolling mill and the weft straightening machine is opposite to the fabric running direction between the weft straightening machine and the setting machine, the fabric is tensioned. When the fabric tension increases to a threshold value, the fabric can just drive the cloth storage assembly to move along the rag direction to make the rag assembly move to the position of cutting or piercing the fabric. After the rag assembly cuts or pierces the fabric, the stress is easily concentrated at the incision of the fabric. The strong fabric tension makes the fabric complete the full-width tearing from the incision and unload the fabric tension. Therefore, the present invention can automatically, timely and reliably form an incision on the fabric when the fabric runs abnormally due to being wound on the roller of the rolling mill, so that the fabric can be torn and the soaring tension is released instantly, thereby avoiding the bending and breaking of the weft straightening machine roller body and eliminating the personal safety and equipment production hidden dangers caused by excessive fabric tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the first structure of the emergency fabric rag device for the dyeing and finishing unit of the present invention;

[0030] Figure 2 It is a second structural schematic diagram of the emergency fabric ripping device for the dyeing and finishing unit of the present invention;

[0031] Figure 3 It is a third structural schematic diagram of the emergency fabric rag device for the dyeing and finishing unit of the present invention;

[0032] Figure 4 It is a schematic diagram of a fourth structure of the emergency fabric rag device for the dyeing and finishing unit of the present invention;

[0033] Figure 5 It is a fifth structural schematic diagram of the emergency fabric rag device for the dyeing and finishing unit of the present invention;

[0034] Figure 6 It is a sixth structural schematic diagram of the emergency fabric rag device for the dyeing and finishing unit of the present invention;

[0035] Figure 7 for Figure 2 A front view of the emergency fabric rag device for the dyeing and finishing unit in the embodiment of the present invention when the rag assembly is provided on one side of the fabric width;

[0036] Figure 8 for Figure 2 A front view of a fabric emergency rag device for a dyeing and finishing unit in the embodiment of the present invention when the device has two rag assemblies on both sides of the fabric width;

[0037] Fig. 9 It is a structural schematic diagram of the dyeing and finishing unit of the present invention;

[0038] In the figure, 1, frame; 11, linear guide rail; 12, pressing plate; 2, cloth storage assembly; 21, roller seat; 22, cloth storage roller; 3, support rod; 31, step; 4, widthwise displacement mechanism; 5, first cloth guide roller; 6, second cloth guide roller; 7, cloth rag assembly; 8, fabric; 9, elastic element; 10, connecting arm; 100, fabric emergency cloth rag device for dyeing and finishing unit; 200, padding car; 300, weft straightening machine; 400, shaping machine. DETAILED DESCRIPTION

[0039] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0040] Embodiment 1

[0041] like Figures 1 to 9 As shown, a fabric emergency rag device 100 for a dyeing and finishing unit comprises:

[0042] Rack 1;

[0043] The cloth storage assembly 2 comprises a roller seat 21 and a cloth storage roller 22, wherein the roller seat 21 is configured to be movable along the direction of the rags, and the cloth storage roller 22 is rotatably supported on the roller seat 21;

[0044] The first cloth guide roller 5 and the second cloth guide roller 6 are respectively rotatably supported on the frame 1, and both extend beyond the cloth storage roller 22 toward the same side in the cloth ripping direction, and the conveyed fabric 8 passes around the first cloth guide roller 5, the cloth storage roller 22 and the second cloth guide roller 6 in sequence;

[0045] The rag assembly 7 is connected to the roller seat 21, moves with the roller seat 21, and faces the fabric 8 before reaching the first fabric guide roller 5 or being led out from the second fabric guide roller 6;

[0046] When the tension of the fabric 8 exceeds a threshold value, the fabric storage assembly 2 is driven to move in the rag direction until the rag assembly 7 cuts or pierces the fabric 8 .

[0047] In this embodiment, the roller seat 21 can be connected to the rag assembly 7 through the connecting arm 10. A linear guide rail 11 can also be set on the frame 1, and the roller seat 21 is slidably installed on the linear guide rail 11. There are many directions for the rags, such as up and down directions, left and right directions, etc. Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 The rags are shown in the up-down direction. Figure 3 The rag direction shown is the left-right direction. When the rag direction is the up-down direction, the lower roller surface of the cloth storage roller 22 is close to the fabric 8, and the fabric 8 is pressed by its deadweight.

[0048] Embodiment 2

[0049] like Figures 2 to 5 As shown, the difference between this embodiment and the first embodiment is that the emergency fabric ripping device 100 for the dyeing and finishing unit further includes an elastic element 9, which is arranged between the roller seat 21 and the frame 1, and is used to dampen the movement of the cloth storage assembly 2 in the direction of reducing the amount of stored cloth.

[0050] It should be noted that, in the case where the elastic element 9 is not provided, the cloth storage assembly 2 can be driven by the fabric 8 to move only when the fabric tension reaches or exceeds the threshold value. After the elastic element 9 in this embodiment is provided, the cloth storage assembly 2 can also be driven by the fabric 8 to move before the fabric tension reaches the threshold value. The greater the movement of the cloth storage assembly 2, the greater the tension of the fabric 8 needs to be. When the tension of the fabric 8 reaches the threshold value, the cloth storage assembly 2 is just driven by the fabric 8 to move to the position where the rag assembly 7 cuts or punctures the fabric 8. In other words, by providing the elastic element 9, before the tension reaches the threshold value, although the rag assembly 7 will also move vertically, it cannot contact the fabric 8. Before the tension rises to the threshold value, the entire device can adjust the fabric tension by changing its storage amount.

[0051] When the rag direction is in the up-down direction, due to the presence of the elastic element 9, the cloth storage roller 22 can not only press the conveyed fabric 8 with its lower roller surface, but also press the conveyed fabric 8 with its upper roller surface. Figure 2 , Figure 4 It is shown that the cloth storage roller 22 presses the conveyed fabric 8 with its lower roller surface. Figure 5 and Figure 6 It is shown that the cloth storage roller 22 presses the conveyed fabric 8 with its upper roller surface.

[0052] In this embodiment, the elastic element 9 may have various structures, and may be a compression spring, a tension spring, or a torsion spring. Figure 2 , Figure 3 , Figure 4 and Figure 5 The elastic element 9 shown is a compression spring. Figure 6 The elastic element 9 shown is a tension spring. The structure of the elastic element 9 being a torsion spring is not shown in the drawings. In order to facilitate the installation of the compression spring, Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the emergency fabric ripping device 100 for the dyeing and finishing unit further comprises a support rod 3, one end of the compression spring is connected to the roller seat 21, and the other end passes through the frame 1. The compression spring is sleeved on the support rod 3 and respectively abuts against the steps 31 on the frame 1 and the support rod 3. In order to facilitate the adjustment of the preload force of the spring, it can be as follows Figure 2 , Figure 3 and Figure 5 As shown, a nut is threadedly connected to the support rod 3, and the nut forms a step 31 on the support rod 3. Figure 4 As shown, a pressure plate 12 is mounted on the frame 1 in an adjustable height, and a spring is pressed against the pressure plate 12 .

[0053] In this embodiment, if Figure 7 As described above, the rag assembly 7 is located on the side of the fabric 8 facing upward, and there may be one, two, etc., on the side of the fabric 8 facing upward, which cuts or punctures the fabric 8 during the movement of the cloth storage assembly 2 in the direction of reducing the amount of stored cloth, preferably cutting one side of the fabric 8. Fig. 9 As shown, the rag assembly 7 is distributed on both sides of the fabric 8 in the upward direction of the fabric 8, with one, two, etc. on each side, and cuts or punctures both sides of the fabric 8 simultaneously when the fabric storage assembly 2 moves in the direction of reducing the amount of stored fabric, preferably cutting the edges of both sides of the fabric 8 simultaneously. In addition to cutting the edges of the fabric 8, the rag assembly 7 can also complete the full width cutting of the fabric 8 in the width direction. Figure 7 and Figure 8 As shown, the rag assembly 7 is installed on the roller seat 21 through the widthwise displacement mechanism 4, and the widthwise displacement mechanism 4 drives the rag assembly 7 to move along the widthwise direction of the fabric 8, thereby realizing partial cutting or full width cutting from the edge to other parts of the fabric 8. The widthwise displacement mechanism 4 is an electromagnet displacement assembly or a cylinder or an electric push rod or a synchronous belt, etc. In general, edge cutting or partial cutting can be used. For a very few types of fabrics 8 that are difficult to tear even if they are partially cut, full width cutting can be selected.

[0054] Embodiment 3

[0055] A weft straightening machine 300 includes the fabric emergency ripping device 100 for a dyeing and finishing unit in the first or second embodiment.

[0056] Embodiment 4

[0057] A dyeing and finishing unit comprises the weft straightening machine 300 in the third embodiment.

[0058] Embodiment 5

[0059] like Fig. 9 As shown, a dyeing and finishing unit includes the fabric emergency ripping device 100 for the dyeing and finishing unit in embodiment one or embodiment two.

[0060] In the third to fifth embodiments, the roller with the smallest roller load of the weft straightening machine 300 can be used as the reference roller, and the threshold value of the tension of the fabric 8 is less than the load of the reference roller of the weft straightening machine 300.

[0061] The dyeing and finishing unit generally also includes a padding machine 200, a weft straightening machine 300, and a setting machine 400. During operation, the fabric 8 is sequentially dyed by the padding machine 200, straightened by the weft straightening machine 300, and set by the setting machine 400; the fabric emergency ripping device 100 of the dyeing and finishing unit is arranged on the fabric running path between the padding machine 200 and the setting machine 400.

[0062] When the fabric 8 is wound on the roller of the rolling car 200, so that the fabric running direction between the rolling car 200 and the weft straightening machine 300 is opposite to the fabric running direction between the weft straightening machine 300 and the setting machine 400, the fabric 8 is tensioned. When the tension of the fabric 8 increases to a threshold value, the fabric 8 can just drive the cloth storage assembly 2 to move to make the rag assembly 7 swing to the position of cutting or piercing the fabric 8. After the rag assembly 7 cuts or pierces the fabric 8, the stress is easily concentrated at the incision of the fabric 8. The strong fabric tension makes the fabric 8 complete the full-width tearing from the incision and unload the fabric tension. Therefore, the present invention can automatically, timely and reliably form an incision on the fabric 8 when the fabric 8 is abnormally running due to being wound on the roller of the rolling car 200, so that the fabric 8 can be torn, and the soaring tension is released instantly, thereby avoiding the bending and breaking of the roller body of the weft straightening machine 300, and eliminating the personal safety and equipment production hidden dangers caused by excessive fabric tension.

[0063] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A fabric emergency rag device for a dyeing and finishing unit, characterized in that: include: Rack (1); A cloth storage assembly (2) comprises a roller seat (21) and a cloth storage roller (22), wherein the roller seat (21) is configured to be movable along a direction of rags, and the cloth storage roller (22) is rotatably supported on the roller seat (21); A first cloth guide roller (5) and a second cloth guide roller (6) are respectively rotatably supported on the frame (1), and both extend beyond the cloth storage roller (22) toward the same side in the cloth ripping direction, and the conveyed fabric (8) bypasses the first cloth guide roller (5), the cloth storage roller (22) and the second cloth guide roller (6) in sequence; a rag assembly (7) connected to the roller seat (21), moving with the roller seat (21), and facing the fabric (8) before reaching the first fabric guide roller (5) or being led out from the second fabric guide roller (6); When the tension of the fabric (8) exceeds a threshold value, the fabric storage assembly (2) is driven to move in the rag direction until the rag assembly (7) cuts or punctures the fabric (8); The rag assembly (7) is mounted on the roller seat (21) via a widthwise displacement mechanism (4), and the widthwise displacement mechanism (4) is used to drive the rag assembly (7) to move along the width of the fabric (8).

2. The fabric emergency rag device for dyeing and finishing unit according to claim 1, characterized in that: The frame (1) is provided with a linear guide rail (11) extending in the direction of the rags, and the roller seat (21) is slidably mounted on the linear guide rail (11).

3. The fabric emergency rag device for dyeing and finishing unit according to claim 1, characterized in that: It also comprises an elastic element (9), which is arranged between the roller seat (21) and the frame (1) and is used to dampen the movement of the cloth storage assembly (2) in the direction of reducing the amount of cloth storage.

4. The fabric emergency rag device for dyeing and finishing unit according to claim 3, characterized in that: The elastic element (9) is a spring.

5. The fabric emergency rag device for dyeing and finishing unit according to claim 4, characterized in that: It also comprises a support rod (3), one end of which is connected to the roller seat (21), and the other end of which passes through the frame (1); the spring is sleeved on the support rod (3) and respectively abuts against steps (31) on the frame (1) and the support rod (3).

6. The fabric emergency rag device for dyeing and finishing unit according to claim 5, characterized in that: The support rod (3) is threadedly connected with a nut, and the nut forms the step (31) on the support rod (3); Or a pressure plate (12) is mounted on the frame (1) in an adjustable height, and the spring abuts against the pressure plate (12).

7. The fabric emergency rag device for dyeing and finishing unit according to claim 1, characterized in that: At least one rag assembly (7) is provided on the side of the fabric (8) facing upward; Or at least one rag assembly (7) is respectively arranged on both sides of the fabric (8) facing upward.

8. A weft straightening machine, characterized in that: It comprises the fabric emergency ripping device (100) for a dyeing and finishing unit as claimed in any one of claims 1 to 7.

9. A dyeing and finishing equipment, characterized in that: It comprises the fabric emergency ripping device (100) for a dyeing and finishing unit as described in any one of claims 1 to 7 or the weft straightening machine (300) as described in claim 8.

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