Tensioning device for hollowed-out knitted fabric

Abstract

The utility model relates to the technical field of knitted fabric tensioning devices, in particular to a tensioning device for hollowed-out knitted fabric. According to the technical scheme, the device comprises a mounting base, a long notch is formed in the top wall of the mounting base, two tensioning assemblies are arranged at the top of the mounting base in a sliding mode and used for tensioning the hollow knitted fabric in conveying, and a control assembly is arranged on the tensioning assemblies and used for controlling the tensioning assemblies to tension the hollow knitted fabric in conveying. The tensioning assemblies are arranged on the mounting base and used for monitoring the tension of the fabric in real time and automatically adjusting the tensioning force of the tensioning assemblies, and an adjusting assembly is arranged in the mounting base and used for adjusting the distance between the two tensioning assemblies. The distance between the two tensioning rollers can be adjusted according to actual conditions, so that the tension of a material is better controlled, deformation or damage of the material caused by improper tension is avoided, the tension of the fabric can be monitored in real time, the height of the tensioning rollers is adjusted, and the tension of the fabric can be adjusted in real time. Product defects caused by too large or too small pressure are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of knitted fabric tensioning devices, in particular to a tensioning device for hollow knitted fabrics. Background Art

[0002] Knitted fabrics are a type of fabric that is formed by bending yarns into loops and interlacing them with knitting needles. In the textile field, knitted fabrics need to maintain tension during transportation to avoid problems such as loose fabrics dragging on the ground and winding.

[0003] In the prior art, the patent number CN218893268U discloses a weaving tensioning device, including a base, two brackets are fixedly connected to the upper surface of the base, the middle parts of the two brackets are provided with vertical grooves and circular grooves, a fixed block is fixedly connected to the bracket at the front end, a long rod and two short rods are movably sleeved on the fixed block, a tensioning mechanism is arranged between the two brackets, the left ends of the short rod and the long rod are fixedly connected with a U-shaped block, the right end of the long rod is fixedly connected with a lever, the rod surface of the lever is movably sleeved with a spring, and the two ends of the spring are respectively fixedly connected to the lever and the fixed block. The utility model drives the screw to rotate by rotating the turntable, and the rotation of the screw drives the two moving blocks to approach or separate, so that the horizontal frame is lifted or lowered by the rotating rod that is deflected accordingly, so as to achieve the effect of adjusting the height of the horizontal frame, and the roller rod on the horizontal frame rises and falls accordingly, and the knitted fabric for weaving slides over the roller rod.

[0004] Although the above-mentioned weaving tensioning device can achieve the effect of adjusting the height of the roller rod through the settings of the cross frame and the screw rod, it still has the following shortcomings in practical applications: the device cannot adjust the pressure and tension according to different fabric types, resulting in easy damage. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and propose a tensioning device for hollow knitted fabrics.

[0006] To achieve this purpose, the utility model adopts the following technical solutions: a tensioning device for hollow knitted fabrics, comprising a mounting base, a top wall of the mounting base being provided with a long slot, two tensioning assemblies being slidably arranged on the top of the mounting base for tensioning the hollow knitted fabrics being conveyed, a control assembly being arranged on the tensioning assembly for real-time monitoring of the tension of the fabric and automatically adjusting the tensioning force of the tensioning assembly, and an adjustment assembly being arranged inside the mounting base for adjusting the spacing between the two tensioning assemblies.

[0007] Preferably, the tensioning assembly includes a mounting frame slidably mounted on the top of the mounting base, a cylinder is fixedly mounted on the top of the mounting frame, the telescopic end of the cylinder passes through the top wall of the mounting frame and is fixedly connected to a mounting frame, and a tensioning roller is rotatably mounted inside the mounting frame.

[0008] Preferably, the front and rear inner walls of the installation frame are provided with slide grooves, and the front and rear sides of the installation frame are fixedly mounted with sliders, and the sliders cooperate with the slide grooves.

[0009] Preferably, the control assembly includes pressure sensors evenly installed in the outer groove of the tensioning roller, and a controller is provided on the installation frame, and the controller is connected to the cylinder and the pressure sensor at the same time.

[0010] Preferably, bearing blocks and servo motors are fixedly mounted on inner walls on both sides of the mounting base, respectively; a bidirectional lead screw is fixedly connected to an output end of the servo motor; and one end of the bidirectional lead screw away from the servo motor is rotatably connected to the bearing block.

[0011] Preferably, the inner walls on both sides of the mounting base are commonly fixedly connected with guide rods, and the bidirectional screw rod and the periphery of the guide rod are symmetrically slidably sleeved with two moving blocks.

[0012] Preferably, a connecting column is fixedly mounted on the top of each of the moving blocks, and the top of each of the connecting columns passes through a long slot and is fixedly connected to the bottom of the corresponding installation frame.

[0013] The beneficial effects of the utility model are as follows: when using the device, the servo motor is started to drive the bidirectional screw to rotate on the bearing block. When the bidirectional screw drives the two moving blocks to slide toward or away from each other on the periphery of the guide rod and the bidirectional screw, the moving block drives the mounting frame to slide on the top of the mounting base through the connecting column, thereby controlling the spacing between the two tensioning rollers, so that the device can adjust the distance between the two tensioning rollers according to actual conditions, thereby better controlling the tension of the material and avoiding deformation or damage of the material caused by improper tension; the cylinder is started to drive the mounting frame to rise and fall in the mounting frame, and the tensioning roller rotatably arranged in the mounting frame also rises and falls accordingly, and the tensioning roller is adjusted to a suitable height. When the fabric contacts the tensioning roller, the pressure sensor installed in the outer groove of the tensioning roller will monitor the tension of the fabric in real time and feed back the signal to the controller. The controller can control the cylinder according to the preset value, thereby automatically adjusting the height of the tensioning roller, so that the device can monitor the tension of the fabric in real time and adjust the height of the tensioning roller to prevent product defects caused by excessive or insufficient pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view schematic diagram of the overall structure of an embodiment of a tensioning device for hollow knitted fabrics of the utility model;

[0015] Figure 2 It is a front cutaway schematic diagram of the overall structure of an embodiment of a tensioning device for hollow knitted fabrics of the utility model;

[0016] Figure 3 It is a side cutaway schematic diagram of the overall structure of an embodiment of a tensioning device for hollow knitted fabrics of the utility model;

[0017] Figure 4 The utility model is a top cutaway schematic diagram of the overall structure of a tensioning device for hollow knitted fabrics according to an embodiment of the present invention.

[0018] Figure numerals: 1. Mounting base; 11. Long slot; 2. Tensioning assembly; 21. Mounting frame; 22. Cylinder; 23. Mounting frame; 24. Tensioning roller; 25. Slide; 3. Control assembly; 31. Pressure sensor; 32. Controller; 4. Adjustment assembly; 41. Bearing block; 42. Servo motor; 43. Bidirectional screw; 44. Guide rod; 45. Moving block; 46. Connecting column. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0020] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0022] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0023] Embodiment 1

[0024] like Figure 1-4 As shown, the utility model proposes a tensioning device for hollow knitted fabrics, including a mounting base 1, a top wall of the mounting base 1 is provided with a long slot 11, two tensioning components 2 are slidably provided on the top of the mounting base 1, for tensioning the hollow knitted fabrics being conveyed, a control component 3 is provided on the tensioning component 2, for real-time monitoring of the tension of the fabric and automatically adjusting the tensioning force of the tensioning component 2, and an adjustment component 4 is provided inside the mounting base 1 for adjusting the distance between the two tensioning components 2.

[0025] In this embodiment: the tensioning assembly 2 includes a mounting frame 21 slidably mounted on the top of the mounting base 1, a cylinder 22 is fixedly mounted on the top of the mounting frame 21, the telescopic end of the cylinder 22 penetrates the top wall of the mounting frame 21 and is fixedly connected to the mounting frame 23, and a tensioning roller 24 is rotatably mounted inside the mounting frame 23. Through this arrangement, the mounting frame 23 can be lifted and lowered by starting the cylinder 22, and the tensioning roller 24 rotatably arranged inside the mounting frame 23 will also be lifted and lowered accordingly, thereby controlling the tensioning force between the tensioning roller 24 and the fabric; the front and rear inner walls of the mounting frame 21 are both provided with sliding grooves 25, and the front and rear inner walls of the mounting frame 23 are A slider is fixedly installed on each side, and the slider cooperates with the slide groove 25. Through this setting, the cooperation between the slider and the slide groove 25 can make the mounting frame 23 more stable when lifting and lowering; the control component 3 includes a pressure sensor 31 evenly installed in the outer groove of the tensioning roller 24, and a controller 32 is arranged on the mounting frame 21, and the controller 32 is connected to the cylinder 22 and the pressure sensor 31 at the same time. Through this setting, the pressure sensor 31 can monitor the tension of the fabric in real time, and provide real-time feedback to the controller 32. The controller 32 can control the cylinder 22 to help automatically adjust the height of the tensioning roller 24.

[0026] Embodiment 2

[0027] like Figure 1-4As shown, a tensioning device for hollow knitted fabrics proposed by the utility model, compared with the first embodiment, this embodiment also includes that bearing blocks 41 and servo motors 42 are fixedly installed on the inner walls on both sides of the mounting base 1, and the output end of the servo motor 42 is fixedly connected with a bidirectional screw rod 43, and the end of the bidirectional screw rod 43 away from the servo motor 42 is rotatably connected to the bearing block 41. Through this arrangement, starting the servo motor 42 can drive the bidirectional screw rod 43 to rotate on the bearing block 41; the inner walls on both sides of the mounting base 1 are fixedly connected with guide rods 44, and the bidirectional screw rods 43 and the guide rods 44 are fixedly connected. Two moving blocks 45 are provided on the outer symmetrical sliding sleeve. Through this arrangement, when the bidirectional screw rod 43 rotates, the moving block 45 can be driven to slide around the guide rod 44 and the bidirectional screw rod 43; the top of the moving block 45 is fixedly installed with a connecting column 46, and the top of the connecting column 46 passes through the long slot 11 and is fixedly connected to the bottom of the corresponding mounting frame 21. Through this arrangement, when the moving block 45 slides around the bidirectional screw rod 43 and the guide rod 44, the mounting frame 21 can be driven to slide on the top of the mounting base 1 through the connecting column 46, thereby controlling the spacing between the two tensioning rollers 24.

[0028] Working principle: When using this device, start the servo motor 42 to drive the bidirectional screw 43 to rotate on the bearing block 41. When the bidirectional screw 43 drives the two moving blocks 45 to slide toward or away from each other on the periphery of the guide rod 44 and the bidirectional screw 43, the moving block 45 drives the mounting frame 21 to slide on the top of the mounting base 1 through the connecting column 46, thereby controlling the distance between the two tensioning rollers 24. Start the cylinder 22 to drive the mounting frame 23 to rise and fall in the mounting frame 21, and the tensioning roller 24 rotatably arranged in the mounting frame 23 also rises and falls accordingly, and the tensioning roller 24 is adjusted to a suitable height. When the fabric contacts the tensioning roller 24, the pressure sensor 31 installed in the outer groove of the tensioning roller 24 will monitor the tension of the fabric in real time and feed back the signal to the controller 32. The controller 32 can control the cylinder 22 according to the preset value, thereby automatically adjusting the height of the tensioning roller 24.

[0029] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A tensioning device for hollow knitted fabrics, characterized in that: The invention comprises a mounting base (1), the top wall of the mounting base (1) is provided with a long slot (11), the top of the mounting base (1) is slidably provided with two tensioning assemblies (2) for tensioning the hollow knitted fabric being transported, the tensioning assemblies (2) are provided with a control assembly (3) for real-time monitoring of the tension of the fabric and automatically adjusting the tensioning force of the tensioning assembly (2), and the interior of the mounting base (1) is provided with an adjustment assembly (4) for adjusting the distance between the two tensioning assemblies (2).

2. A tensioning device for hollow knitted fabric according to claim 1, characterized in that: The tensioning assembly (2) comprises a mounting frame (21) slidably mounted on the top of the mounting base (1); a cylinder (22) is fixedly mounted on the top of the mounting frame (21); a telescopic end of the cylinder (22) penetrates the top wall of the mounting frame (21) and is fixedly connected to a mounting frame (23); a tensioning roller (24) is rotatably mounted inside the mounting frame (23).

3. A tensioning device for hollow knitted fabric according to claim 2, characterized in that: The front and rear inner walls of the installation frame (21) are both provided with sliding grooves (25), and the front and rear sides of the installation frame (23) are both fixedly mounted with sliding blocks, and the sliding blocks cooperate with the sliding grooves (25).

4. A tensioning device for hollow knitted fabric according to claim 2, characterized in that: The control assembly (3) comprises a pressure sensor (31) evenly mounted in a groove on the periphery of the tensioning roller (24); a controller (32) is arranged on the mounting frame (21), and the controller (32) is connected to both the cylinder (22) and the pressure sensor (31).

5. The tensioning device for hollow knitted fabric according to claim 2, characterized in that: A bearing block (41) and a servo motor (42) are fixedly mounted on the inner walls on both sides of the mounting base (1), respectively; a bidirectional screw rod (43) is fixedly connected to the output end of the servo motor (42); and one end of the bidirectional screw rod (43) away from the servo motor (42) is rotatably connected to the bearing block (41).

6. A tensioning device for hollow knitted fabric according to claim 5, characterized in that: The inner walls on both sides of the mounting base (1) are fixedly connected to guide rods (44), and the outer peripheries of the bidirectional screw rod (43) and the guide rods (44) are symmetrically slidably sleeved with two moving blocks (45).

7. A tensioning device for hollow knitted fabric according to claim 6, characterized in that: A connecting column (46) is fixedly mounted on the top of each of the moving blocks (45); the top of each of the connecting columns (46) passes through the long slot (11) and is fixedly connected to the bottom of the corresponding installation frame (21).

Images