Cloth tensioning mechanism of loom

Abstract

The utility model relates to the technical field of cloth tensioning, and discloses a cloth tensioning mechanism of a loom, which comprises a fixing frame, and further comprises a cloth component and a guide roller which are arranged on the outer side of the fixing frame in parallel, the tensioning assembly is installed on the outer side of the fixing frame and used for tensioning the cloth, and an adjusting assembly for adjusting the position of the tensioning assembly is arranged on the outer side of the tensioning assembly; when the cloth roller begins to discharge materials, due to the fact that the discharging speed is larger than the feeding speed during production, the cloth begins to become loose at the moment, the tensioning roller on the left side of the rotating rod begins to fall down due to gravity until an induction plate is detected by a sensor, a driving motor of the cloth roller stops at the moment, and in the process, the cloth is kept in a tight state all the time; after the driving motor stops rotating, the cloth is tighter and tighter during feeding, at the moment, the tensioning roller on the left side of the rotating rod is pulled to gradually move upwards until the sensing plate is detected by the sensor on the sensing plate, the cloth roll begins to unwind, and the cloth is kept in a tensioned state all the time.

Description

Technical Field

[0001] The utility model relates to the technical field of fabric tensioning, and specifically relates to a fabric tensioning mechanism for a loom. Background Technique

[0002] In the process of weaving production, after the loom completes the weaving process, the fabric needs to be conveyed to a take-up roller for winding. The existing fabric is conveyed to the take-up roller through a fixed guide roller for winding. Since the position of the guide roller is fixed, the fabric needs to maintain a constant speed during the conveying process to ensure that the fabric is in a tensioned state, so as to ensure the flatness of the wound fabric and prevent wrinkles.

[0003] However, due to small fluctuations in the conveying speed of the loom during the conveying process for various reasons, the fabric cannot always be in a tensioned state, which affects the flatness of the wound fabric, and even causes fabric wrinkles, resulting in poor quality of the wound fabric. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fabric tensioning mechanism for a loom to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A fabric tensioning mechanism for a loom, including a fixed frame, and further including:

[0006] A fabric assembly and a guide roller arranged side by side outside the fixed frame;

[0007] A tensioning assembly installed outside the fixed frame to tighten the fabric. An adjusting assembly for adjusting the position of the tensioning assembly is arranged outside the tensioning assembly, and a counterweight is arranged outside the adjusting assembly.

[0008] Preferably, the fabric assembly includes a motor arranged outside the fixed frame, and a fabric roller is arranged at the output end of the motor.

[0009] Preferably, there are two guide rollers, which are arranged horizontally side by side on the fixed frame.

[0010] Preferably, the tensioning assembly includes a rotating rod arranged outside the fixed frame, a bracket is arranged outside the rotating rod, and a tensioning roller is arranged outside the bracket.

[0011] Preferably, the adjusting assembly includes a connecting block arranged outside the rotating rod, an induction plate is arranged outside the connecting block, an installation groove is arranged inside the fixed frame, and two symmetric sensors are arranged inside the installation groove.

[0012] Preferably, a connecting rod is arranged outside the connecting block, and the counterweight is arranged on the connecting rod.

[0013] Preferably, an installation block is arranged on the outer side of the rotating rod, and a limiting block is arranged on the outer side of the installation block.

[0014] Preferably, a limiting roller is arranged inside the bracket.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] When the fabric roller starts to feed material in the present utility model, since the feeding speed is greater than the feeding speed during production, the fabric will start to become loose at this time. Due to gravity, the tension roller on the left side of the rotating rod will start to drop until the induction plate is detected by the sensor. At this time, the driving motor of the fabric roller stops. During this process, the fabric always remains in a taut state; when the driving motor stops rotating, the feeding will make the fabric tighter and tighter. At this time, it will pull the tension roller on the left side of the rotating rod to gradually move upward until the induction plate is detected by the upper sensor, and the fabric roll starts to feed material; repeat the above process, automatically adjust the tension according to the state of the fabric, and keep the fabric in a taut state all the time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a fabric tensioning mechanism of a loom provided by the present utility model;

[0018] Figure 2 It is a schematic structural diagram of a fabric assembly provided by the present utility model;

[0019] Figure 3 It is a schematic structural diagram of a fixing bracket provided by the present utility model;

[0020] Figure 4 It is a schematic structural diagram of a tensioning assembly provided by the present utility model.

[0021] In the figure: 1, fixing bracket; 2, fabric assembly; 201, motor; 202, fabric roller; 3, guide roller; 4, tensioning assembly; 401, rotating rod; 402, bracket; 403, tension roller; 5, adjusting assembly; 501, connecting block; 502, induction plate; 503, installation groove; 504, sensor; 6, counterweight; 7, connecting rod; 8, installation block; 9, limiting block; 10, limiting roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 As shown, a fabric tensioning mechanism for a loom includes a fixed frame 1, and further includes: a fabric component 2 and a material guiding roller 3 arranged side by side on the outer side of the fixed frame 1; the fabric is fed through the fabric component 2, and the fabric is transmitted by the material guiding roller 3; a tensioning component 4 installed on the outer side of the fixed frame 1 to tension the fabric, and the fabric is tensioned by setting the tensioning component 4; an adjusting component 5 is arranged on the outer side of the tensioning component 4 to adjust the position of the tensioning component 4, and the tensioning position of the tensioning component 4 is adjusted by setting the adjusting component 5; a counterweight 6 is arranged on the outer side of the adjusting component 5, and the counterweight 6 is used to counterweight the tensioning component 4.

[0024] The fabric component 2 includes a motor 201 arranged on the outer side of the fixed frame 1. The motor 201 is installed on the motor 201 through a bracket. A fabric roller 202 is arranged at the output end of the motor 201, and the fabric roller 202 is fixedly connected to the fabric roller 202 through a coupling. The fabric is fed by driving the fabric roller 202 to rotate through the motor 201.

[0025] There are two material guiding rollers 3, which are arranged horizontally side by side on the fixed frame 1. The material guiding roller 3 is rotatably connected to the fixed frame 1 and is used to change the moving direction of the fabric.

[0026] The tensioning component 4 includes a rotating rod 401 arranged on the outer side of the fixed frame 1. The rotating rod 401 rotates on the fixed frame 1 through a bearing. A bracket 402 is arranged on the outer side of the rotating rod 401. The bracket 402 is fixed on the outer side of the rotating rod 401. A tensioning roller 403 is arranged on the outer side of the bracket 402, and the tensioning roller 403 rotates on the outer side of the bracket 402.

[0027] The adjusting component 5 includes a connecting block 501 arranged on the outer side of the rotating rod 401. The connecting block 501 is fixed on the outer side of the rotating rod 401. An induction plate 502 is arranged on the outer side of the connecting block 501. The induction plate 502 is fixed on the outer side of the connecting block 501. An installation groove 503 is arranged inside the fixed frame 1. The installation groove 503 is opened on the fixed frame 1. Two symmetric sensors 504 are arranged inside the installation groove 503, and the two sensors 504 are installed one above the other inside the installation groove 503.

[0028] A connecting rod 7 is arranged on the outer side of the connecting block 501. The connecting rod 7 is welded to the connecting block 501. The counterweight 6 is arranged on the connecting rod 7. The counterweight 6 is welded to the outer side of the connecting rod 7. The weight of the counterweight 6 is less than the weight of the tensioning roller 403.

[0029] An installation block 8 is arranged on the outer side of the rotating rod 401. The installation block 8 is installed on the outer side of the rotating rod 401 through a bearing. The installation block 8 is fixed on the fixed frame 1. A limiting block 9 is arranged on the outer side of the installation block 8. The limiting block 9 is welded to the outer side of the installation block 8 to limit the rotating rod 401 when the tensioning component 4 is not in use.

[0030] Inside the bracket 402, there is a limiting roller 10. The limiting roller 10 rotates inside the bracket 402. When the fabric is loosened, the fabric is limited between the tension roller 403 and the limiting roller 10 to prevent the fabric from winding around the rotating rod 401.

[0031] Working principle: The fabric comes out from the fabric roller 202, passes through the guiding roller 3 on the right side, then passes downward through the bottom of the tension roller 403, and then moves to the outside of the guiding roller 3 on the left side; the function of the counterweight 6 is to reduce the downward pressure of the tension roller 403 and the limiting roller 10 on the left side of the rotating rod 401, but it does not exceed their gravity. Therefore, in the free state, the tensioning mechanism will rotate to the left. When the fabric roller 202 starts to feed the material, since the feeding speed is greater than the feeding speed during production, the fabric will start to loosen at this time. And the tension roller 403 on the left side of the rotating rod 401 starts to drop due to gravity until the sensing plate 502 is detected by the sensor 504. At this time, the driving motor 201 of the fabric roller 202 stops. During this process, the fabric always remains in a taut state; after the driving motor 201 stops rotating, the feeding will make the fabric tighter and tighter. At this time, it will pull the tension roller 403 on the left side of the rotating rod 401 gradually upward until the sensing plate 502 is detected by the upper sensor 504 and the fabric roll starts to feed the material; repeat the above process, automatically adjust the tension according to the state of the fabric, and keep the fabric in a taut state all the time.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cloth tensioning mechanism for a loom, comprising a fixing frame (1), characterized in that: Also includes: A cloth assembly (2) and a material guide roller (3) arranged in parallel outside the fixed frame (1); A tensioning assembly (4) is mounted on the outside of a fixing frame (1) for tightening fabric, an adjusting assembly (5) for adjusting the position of the tensioning assembly (4) is arranged on the outside of the tensioning assembly (4), and a counterweight (6) is arranged on the outside of the adjusting assembly (5).

2. The cloth tensioning mechanism of a loom according to claim 1, characterized in that: The cloth assembly (2) comprises a motor (201) arranged outside the fixing frame (1), and a cloth roller (202) is arranged at the output end of the motor (201).

3. The cloth tensioning mechanism of a loom according to claim 1, characterized in that: There are two material guide rollers (3) which are arranged in parallel transversely on the fixed frame (1).

4. The cloth tensioning mechanism of a loom according to claim 1, characterized in that: The tensioning assembly (4) comprises a rotating rod (401) arranged outside the fixing frame (1), a bracket (402) is arranged outside the rotating rod (401), and a tensioning roller (403) is arranged outside the bracket (402).

5. The cloth tensioning mechanism of a loom according to claim 4, characterized in that: The adjustment assembly (5) comprises a connection block (501) arranged on the outside of the rotating rod (401), a sensing plate (502) is arranged on the outside of the connection block (501), a mounting groove (503) is arranged inside the fixing frame (1), and two symmetrical sensors (504) are arranged inside the mounting groove (503).

6. The cloth tensioning mechanism of a loom according to claim 5, characterized in that: A connecting rod (7) is arranged on the outer side of the connecting block (501), and the counterweight block (6) is arranged on the connecting rod (7).

7. The cloth tensioning mechanism of a loom according to claim 4, characterized in that: A mounting block (8) is arranged on the outer side of the rotating rod (401), and a limiting block (9) is arranged on the outer side of the mounting block (8).

8. The cloth tensioning mechanism of a loom according to claim 4, characterized in that: A limiting roller (10) is arranged inside the bracket (402).

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