Cloth tightening device

Abstract

The utility model relates to a cloth tightening device which comprises a driving roller, a cloth pressing roller, a first swing arm, a second swing arm, a driving mechanism and a main control module. The driving roller is fixedly connected with the first swing arm and the second swing arm; the cloth pressing roller is rotatably mounted between the first swing arm and the second swing arm, and a cloth passing space is formed between the cloth pressing roller and the driving roller; the driving mechanism comprises a servo motor and a speed reducer; the servo motor has an angle positioning function and drives the driving roller to rotate through the speed reducer; at least one control instruction is stored in the main control module, each control instruction comprises cloth type information and rotation angle information, and the cloth type information is used for representing the material and the elastic strength of cloth; the main control module is electrically connected with the servo motor, and the servo motor executes corresponding work according to a control instruction sent by the main control module to drive the driving roller to rotate by a corresponding angle. The device has the characteristics of simple structure, scientific design, convenience in use, benefit for improving the production efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of cloth processing machinery, in particular to a cloth tightening device. Background Art

[0002] The velvet machine is a key piece of equipment in textile finishing. It creates a layer of fuzz on the smooth, even surface of fabric, making it softer. Before being velvet-treated, fabric is folded and stacked in a trolley, completely tension-free. If the fabric is directly fed from the trolley into the velvet machine, wrinkles will form during the velvet treatment, affecting the velvet machine's effectiveness.

[0003] To achieve a better sanding effect on the fabric, the sanding machine is equipped with a tensioning device. This device applies a certain amount of tension to the fabric entering the sanding machine, causing the fabric to be in a tensioned state between the feed and discharge ends of the sanding machine, thereby achieving a better sanding effect on the fabric. Since fabrics of different materials have different elasticities, to achieve the best sanding effect, the tensioning device applies different tensions to fabrics of different materials or elasticities during the sanding process. As a result, existing sanding machines must adjust the rotation angle of the tensioning device before processing fabrics of different materials or elasticities from the previous batch, so that the two rollers of the tensioning device cooperate to apply the appropriate tension to the fabric. This is very inconvenient and has low production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a cloth tightening device, which has the advantages of simple structure, scientific design, easy use and conducive to improving production efficiency.

[0005] The technical solution of the present invention is implemented as follows: a cloth tightening device, in particular, includes an active roller, a cloth pressing roller, a first swing arm, a second swing arm, a driving mechanism and a main control module; wherein:

[0006] The active roller is fixedly connected to the first swing arm and the second swing arm, one end of the active roller is a driving connection end that passes through the first swing arm, and the other end of the active roller is a mounting end that passes through the second swing arm;

[0007] The cloth pressing roller is arranged between the first swing arm and the second swing arm, one end of the cloth pressing roller is rotatably mounted on the first swing arm, and the other end of the cloth pressing roller is rotatably mounted on the second swing arm, the rotation axis of the cloth pressing roller is parallel to the central axis of the active roller, and a cloth passing space is formed between the cloth pressing roller and the active roller;

[0008] The driving mechanism includes a servo motor and a reducer; the servo motor has an angle positioning function, the power output end of the servo motor is transmission-connected to the power input end of the reducer; the power output end of the reducer is transmission-connected to the driving connection end of the active roller;

[0009] The main control module stores at least one control instruction, each of which includes fabric type information and rotation angle information, where the fabric type information is used to represent the material and elastic strength of the fabric. The main control module is electrically connected to the servo motor, and the servo motor performs corresponding work according to the control instruction sent by the main control module, causing the active roller to rotate to a corresponding angle.

[0010] When this solution is in use, the reducer is fixed to the frame of the velvet machine, and the mounting end of the active roller is rotatably mounted on the frame of the velvet machine. After the cloth passes through the cloth-passing space of this solution and enters the velvet machine, the greater the angle of rotation of the active roller under the action of the driving mechanism, the greater the contact area between the active roller, the cloth pressing roller and the cloth, so that the tension of the cloth under the action of this solution is greater. This solution adopts a main control module and a driving mechanism composed of a servo motor and a reducer. When in use, the control instructions consisting of cloth type information and rotation angle information are first stored in the main control module. The servo motor is designed with an angle positioning function, so that when this solution stops, the rotation angle of the active roller will automatically return to zero to relax the tension. When it is restarted, the active roller will automatically return to the rotation angle set before the stop, so that this solution has a memory function and is more convenient to operate. There are two situations when this solution is working: one is that when the corresponding control instruction can be found in the main control module for the fabric to be frosted according to its own material and elastic strength, the corresponding control instruction is directly selected to execute so that the servo motor drives the active roller to rotate the corresponding angle, and there is no need to debug this solution; the other is that when the corresponding control instruction cannot be found in the main control module for the fabric to be frosted according to its own material and elastic strength, this solution needs to debug the feed tension of this kind of fabric during frosting, and store the fabric type information of this kind of fabric and the rotation angle of the active roller when the fabric is frosted to achieve the best effect as the rotation angle information in the main control module to form a control instruction, so that the next time this kind of fabric is frosted, the control instruction can be directly selected to execute the work; this solution is very convenient to use and greatly improves production efficiency.

[0011] Furthermore, the width D1 of the cloth passage space is preferably within the range of 41±5 mm.

[0012] Furthermore, the driving mechanism also includes a connecting flange; the connecting flange is formed with a rotating shaft hole; the power output end of the servo motor extends into the rotating shaft hole from one end of the connecting flange, and the power input end of the reducer extends into the rotating shaft hole from the other end of the connecting flange, and the connecting flange is fixedly connected to the housing of the servo motor and the housing of the reducer.

[0013] Furthermore, the present solution also includes a mounting frame, which includes a first mounting seat and a second mounting seat; the reducer is fixed on the first mounting seat, and the mounting end of the active roller is rotatably mounted on the second mounting seat.

[0014] Furthermore, the present solution also includes a cloth support roller; the axial direction of the active roller is the left-right direction, the direction perpendicular to the left-right direction on the horizontal plane is the front-back direction, and the direction perpendicular to the horizontal plane is the up-down direction; the cloth support roller is located in the front and lower part of the active roller, one end of the cloth support roller is fixed on the first mounting seat, and the other end of the cloth support roller is fixed on the second mounting seat.

[0015] Furthermore, the central axis of the cloth support roller is parallel to the horizontal plane. The cloth support roller is a structure with straight segments at both ends and an arched segment in the middle. The arch mouth of the arched segment is set toward the rear side. The straight segments at both ends of the cloth support roller are coaxially arranged, and the central axis of the straight segment is parallel to the central axis of the active roller.

[0016] Furthermore, the parts of the active roller and the cloth pressing roller between the first swing arm and the second swing arm are both working sections, and the length L of the working sections of the active roller and the cloth pressing roller is preferably within the range of 2520±50mm; the radius R of the arched section of the cloth support roller is preferably within the range of 4900±30mm, and the distance between the two ends of the arched section is longer than or equal to the length of the working sections of the active roller and the cloth pressing roller; the vertical distance D3 between the cloth support roller and the active roller is preferably within the range of 40mm±5mm, and the horizontal distance D4 between the straight section of the cloth support roller and the active roller is preferably within the range of 180mm±5mm.

[0017] Furthermore, the driving roller and the cloth pressing roller are both made of stainless steel, and the cross-sectional diameter D2 of the working section of each of the driving roller and the cloth pressing roller is preferably within the range of 57±5 mm.

[0018] Furthermore, the servo motor is located at the rear and lower part of the reducer.

[0019] Furthermore, the power of the servo motor is in the range of 200W to 1000W.

[0020] The beneficial effects of the utility model include the advantages of simple structure, scientific design, easy use and being conducive to improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the three-dimensional structure of the embodiment.

[0022] Figure 2 It is a schematic diagram of the main structure of the embodiment.

[0023] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure in the AA direction.

[0024] Explanation of the reference numerals: 1-active roller; 2-cloth pressing roller; 3-first swing arm; 4-second swing arm; 5-driving mechanism; 51-servo motor; 52-reducer; 53-connecting flange; 6-cloth passage space; 7-mounting frame; 71-first mounting seat; 72-second mounting seat; 8-cloth support roller; 81-arch section. DETAILED DESCRIPTION

[0025] like Figure 1 、 Figure 2 、 Figure 3 As shown, a cloth tightening device of this embodiment includes an active roller 1, a cloth pressing roller 2, a first swing arm 3, a second swing arm 4, a driving mechanism 5 and a main control module; wherein:

[0026] The active roller 1 is fixedly connected to the first swing arm 3 and the second swing arm 4. One end of the active roller 1 is the driving connection end that passes through the first swing arm 3, and the other end of the active roller 1 is the installation end that passes through the second swing arm 4.

[0027] The cloth pressing roller 2 is arranged between the first swing arm 3 and the second swing arm 4. One end of the cloth pressing roller 2 is rotatably mounted on the first swing arm 3, and the other end of the cloth pressing roller 2 is rotatably mounted on the second swing arm 4. The rotation axis of the cloth pressing roller 2 is parallel to the central axis of the active roller 1, and a cloth passing space 6 is formed between the cloth pressing roller 2 and the active roller 1.

[0028] The driving mechanism 5 includes a servo motor 51 and a reducer 52; the servo motor 51 has an angle positioning function, the power of the servo motor 51 is 400W, the power output end of the servo motor 51 is transmission-connected to the power input end of the reducer 52; the power output end of the reducer 52 is transmission-connected to the driving connection end of the active roller 1;

[0029] The main control module stores at least one control instruction (the main control module is not shown in the attached figure). Each control instruction includes fabric type information and rotation angle information. The fabric type information is used to represent the material and elastic strength of the fabric. The main control module is electrically connected to the servo motor 51. The servo motor 51 performs corresponding work according to the control instruction sent by the main control module, causing the active roller 1 to rotate to a corresponding angle. When this design is installed on the velvet machine, the fabric passes over the active roller 1 from above and through the fabric passing space 6. Then, it passes over the cloth pressing roller 2 from below and enters the velvet machine. Figure 3As shown, the greater the counterclockwise rotation angle of the active roller 1 under the action of the drive mechanism 5, the greater the contact area between the active roller 1 and the cloth pressing roller 2 and the cloth. This increases the cloth tension under the action of the cloth tightening device. During operation, the user can select the corresponding control instructions stored in the main control module according to the material and elastic strength of the cloth, causing the active roller 1 to rotate to a specific angle. This ensures that the cloth has appropriate tension before entering the velvet machine, resulting in a better velvet effect on the cloth. The cloth tightening device does not require debugging every time the type of cloth to be processed changes, making it very convenient to use and greatly improving production efficiency. The servo motor 51 is designed with an angle positioning function, so that when the cloth tightening device is stopped, the rotation angle of the active roller 1 automatically returns to zero to release the tension. When restarted, the active roller 1 automatically returns to the rotation angle set before the stop, giving the cloth tightening device a memory function and making it even more convenient to operate.

[0030] In order to make the structure of the cloth tightening device more reasonable, Figure 1 、 Figure 2 、 Figure 3 As shown, the width D1 of the cloth passage space 6 is 41 mm.

[0031] In order to make the installation of the cloth tightening device more convenient, Figure 2 、 Figure 3 As shown, the drive mechanism 5 also includes a connecting flange 53 having a rotating shaft hole formed therein. The power output end of the servo motor 51 extends from one end of the connecting flange 53 into the rotating shaft hole, and the power input end of the reducer 52 extends from the other end of the connecting flange 53 into the rotating shaft hole. The connecting flange 53 is fixedly connected to the housings of the servo motor 51 and the reducer 52. This modular design, which uses the connecting flange 53 to connect the servo motor 51 and the reducer 52, facilitates installation by simply installing the reducer 52 on the velvet machine during use, eliminating the need for separate installation of the servo motor 51.

[0032] For the convenience of use, the cloth tightening device is installed on the velvet machine. Figure 1 、 Figure 2 As shown, the present cloth tightening device further includes a mounting frame 7, which includes a first mounting seat 71 and a second mounting seat 72. The speed reducer 52 is fixed to the first mounting seat 71, and the mounting end of the active roller 1 is rotatably mounted on the second mounting seat 72. This design allows the first and second mounting seats 71, 72 to be directly fixed to the velvet machine using screws during use, eliminating the need to provide a specific location on the velvet machine for rotatably connecting the mounting end of the active roller 1, making the present cloth tightening device very convenient to install.

[0033] In order to make the cloth enter the cloth tightening device more smoothly, Figure 1 、 Figure 2 、 Figure 3 As shown, the cloth tightening device further includes a cloth support roller 8; the axis direction of the active roller 1 is the left-right direction, the direction perpendicular to the left-right direction on the horizontal plane is the front-back direction, and the direction perpendicular to the horizontal plane is the up-down direction; the cloth support roller 8 is located in the front and lower part of the active roller 1, one end of the cloth support roller 8 is fixed to the first mounting seat 71, and the other end of the cloth support roller 8 is fixed to the second mounting seat 72. The design of the cloth support roller 8 prevents the cloth from passing around the active roller 1 in a state perpendicular to the horizontal plane, making the cloth conveying smoother.

[0034] In order to prevent the cloth from being deviated and to make the cloth roller 8 have a better supporting effect on the cloth, Figure 1 、 Figure 2 As shown, the central axis of the cloth support roller 8 is parallel to the horizontal plane. The cloth support roller 8 has a structure with straight segments at both ends and an arched segment 81 in the middle. The arched opening of the arched segment 81 is arranged toward the rear side. The straight segments at both ends of the cloth support roller 8 are coaxially arranged, and the central axis of the straight segments is parallel to the central axis of the active roller 1. This structure with the arched segment 81 formed in the middle of the cloth support roller 8 provides the cloth support roller 8 with a wider cloth support surface, resulting in a better support effect of the cloth support roller 8 on the cloth. The arched segment 81 has a structure with a distance from the active roller 1 in the middle and close distances from the active roller 1 at both ends, thereby playing a role in centering the cloth during use and preventing the cloth from deviating.

[0035] Furthermore, if Figure 1 、 Figure 2 、 Figure 3 As shown, the parts of the active roller 1 and the cloth pressing roller 2 between the first swing arm 3 and the second swing arm 4 are all working sections, and the length L of the working section of the active roller 1 and the cloth pressing roller 2 is 2520 mm; the radius R of the arched section 81 of the cloth supporting roller 8 is 4900 mm, and the distance between the two ends of the arched section 81 is longer than the length of the working section of the active roller 1 and the cloth pressing roller 2; the vertical distance D3 between the cloth supporting roller 8 and the active roller 1 is 40 mm, and the horizontal distance D4 between the straight section of the cloth supporting roller 8 and the active roller 1 is 180 mm.

[0036] Furthermore, if Figure 2 、 Figure 3 As shown, the active roller 1, the cloth pressing roller 2, and the cloth supporting roller 8 are all made of stainless steel. The cross-sectional diameter D2 of the working section of each of the active roller 1 and the cloth pressing roller 2 is 57 mm, and the cross-sectional diameter of the cloth supporting roller 8 is 45 mm.

[0037] In order to make the structure layout of the cloth tightening device more reasonable and avoid the servo motor 51 from hindering the transmission of the cloth, Figure 1 、 Figure 2 、 Figure 3 As shown, the servo motor 51 is located at the rear and lower part of the reducer 52.

Claims

1. A cloth tightening device, characterized in that: It includes an active roller, a cloth pressing roller, a first swing arm, a second swing arm, a driving mechanism and a main control module; wherein: The active roller is fixedly connected to the first swing arm and the second swing arm, one end of the active roller is a driving connection end that passes through the first swing arm, and the other end of the active roller is a mounting end that passes through the second swing arm; The cloth pressing roller is arranged between the first swing arm and the second swing arm, one end of the cloth pressing roller is rotatably mounted on the first swing arm, and the other end of the cloth pressing roller is rotatably mounted on the second swing arm, the rotation axis of the cloth pressing roller is parallel to the central axis of the active roller, and a cloth passing space is formed between the cloth pressing roller and the active roller; The driving mechanism includes a servo motor and a reducer; the servo motor has an angle positioning function, the power output end of the servo motor is transmission-connected to the power input end of the reducer; the power output end of the reducer is transmission-connected to the driving connection end of the active roller; The main control module is electrically connected to the servo motor.

2. A cloth tightening device according to claim 1, characterized in that: The width D1 of the cloth passage space is within the range of 41±5 mm.

3. The cloth tightening device according to claim 1, characterized in that: The driving mechanism also includes a connecting flange; the connecting flange is formed with a rotating shaft hole; the power output end of the servo motor extends into the rotating shaft hole from one end of the connecting flange, and the power input end of the reducer extends into the rotating shaft hole from the other end of the connecting flange, and the connecting flange is fixedly connected to the housing of the servo motor and the housing of the reducer.

4. A cloth tightening device according to claim 1 or 3, characterized in that: It also includes a mounting frame, which includes a first mounting seat and a second mounting seat; the reducer is fixed on the first mounting seat, and the mounting end of the active roller is rotatably mounted on the second mounting seat.

5. The cloth tightening device according to claim 4, characterized in that: It also includes a cloth support roller; the axial direction of the active roller is the left-right direction, the direction perpendicular to the left-right direction on the horizontal plane is the front-back direction, and the direction perpendicular to the horizontal plane is the up-down direction; the cloth support roller is located in the front and lower part of the active roller, one end of the cloth support roller is fixed on the first mounting seat, and the other end of the cloth support roller is fixed on the second mounting seat.

6. The cloth tightening device according to claim 5, characterized in that: The central axis of the cloth support roller is parallel to the horizontal plane. The cloth support roller is a structure with straight sections at both ends and an arched section in the middle. The arched mouth of the arched section is set toward the rear side. The straight sections at both ends of the cloth support roller are coaxially arranged, and the central axis of the straight section is parallel to the central axis of the active roller.

7. The cloth tightening device according to claim 6, characterized in that: The parts of the active roller and the cloth pressing roller between the first swing arm and the second swing arm are both working sections, and the length L of the working sections of the active roller and the cloth pressing roller are both within the range of 2520±50mm; the radius R of the arched section of the cloth support roller is within the range of 4900±30mm, and the distance between the two ends of the arched section is longer than or equal to the length of the working sections of the active roller and the cloth pressing roller; the vertical distance D3 between the cloth support roller and the active roller is within the range of 40mm±5mm, and the horizontal distance D4 between the straight section of the cloth support roller and the active roller is within the range of 180mm±5mm.

8. The cloth tightening device according to claim 7, characterized in that: The driving roller and the cloth pressing roller are both made of stainless steel. The cross-sectional diameter D2 of the working section of each of the driving roller and the cloth pressing roller is within the range of 57±5 mm.

9. The cloth tightening device according to claim 5, characterized in that: The servo motor is located at the rear and bottom of the reducer.

10. The cloth tightening device according to claim 1, characterized in that: The power of the servo motor is in the range of 200W to 1000W.

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