Drawing mechanism capable of automatically adjusting tension

Abstract

The utility model provides a self-adjusting tension drawing mechanism which comprises a drawing frame conveying support, a mounting plate is arranged above the drawing frame conveying support, a fixing block is arranged on the surface of the top of the mounting plate, an adjusting cavity is formed in the surface of the top of the fixing block, and first sliding grooves are formed in the inner walls of the two ends of the adjusting cavity. Through cooperative use of the fixing block, the adjusting cavity, the spring, the adjusting block and the conveying groove, automatic tension adjustment can be conveniently conducted on conveyed cotton slivers when the drawing frame works, so that during operation, the cotton slivers are conveyed through the limiting rollers, then a worker presses the adjusting block to compress the spring, the cotton slivers are conveyed through the limiting rollers, and the cotton slivers are conveyed through the adjusting block. The cotton slivers penetrate through the conveying groove to be conveyed, then one ends of the cotton slivers are led into the drawing frame, and therefore in the follow-up work process, under the supporting of the springs, the cotton slivers can be tensioned by the adjusting blocks all the time, automatic adjustment can be achieved according to the elasticity of the springs, and the use flexibility of the cotton slivers is improved.

Description

Technical Field

[0001] This utility model relates to the field of textile equipment technology, and in particular to a self-adjusting tension drawing mechanism. Background Technology

[0002] A drawing frame is a spinning machine that processes several combed or carded fiber slivers into fiber slivers with specific quality requirements. Drawing is an essential step in the spinning process, involving combining, drafting, and forming the sliver. It also ensures the thorough mixing of fibers with different properties, preventing color differences. After drawing, the internal structure of the fiber sliver is improved, the uniformity of long segments is increased, the weight unevenness is reduced, and the fibers are straightened and parallel, reducing problems such as hooks. Existing drawing frames consist of a feeding device, a drafting device, and a forming device. During production, the fiber sliver enters the drafting device from the feeding device, and the fiber sliver exiting the drafting device needs to enter the forming device for drawing. There is a problem of sliver connection between the drafting and forming devices, which cannot effectively gather the fiber sliver into a strip, making operation inconvenient and frequently causing clogging.

[0003] Chinese Patent No. CN201210550592.5 discloses a drawing frame, which includes a feeding device, a drafting device, and a sliver forming device, installed sequentially. A bundling device is also provided between the drafting device and the sliver forming device. The bundling device is composed of a gathering plate and a bundling plate connected together. The gathering plate has a first recessed groove and a second recessed groove on both sides. The first recessed groove and the second recessed groove extend forward and form an intersection. The bundling plate has a third recessed groove connected to the intersection. Although this design solves the problem of sliver connection between the drafting device and the sliver forming device to some extent, the tension on the fiber sliver is fixed when it slides in the recessed groove of the bundling plate. This cannot adapt to fiber slivers with different coefficients of friction. When the coefficient of friction is too high, the fiber sliver is easily pulled and breaks. When the coefficient of friction is too low, the fiber sliver is prone to drooping, resulting in poor fiber sliver bundling effect. Moreover, multiple fiber slivers are not concentrated after entering the drafting zone and are prone to tangling with the rollers, causing equipment failure.

[0004] Therefore, it is necessary to provide a self-adjusting tension drawing mechanism to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a self-adjusting tension drawing mechanism, which solves the problems in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a self-adjusting tension drawing frame mechanism, including a drawing frame conveyor support. An installation plate is provided above the drawing frame conveyor support. A fixing block is provided on the top surface of the installation plate. An adjustment cavity is formed on the top surface of the fixing block. First sliding grooves are formed on the inner walls at both ends of the adjustment cavity. A spring is vertically installed at the bottom of the adjustment cavity. An adjustment block is provided at the top of the spring. A conveying groove is formed on the top surface of the adjustment block. An arc-shaped conveying platform is provided at one end of the conveying groove. A pressure sensor is embedded in the surface of the arc-shaped conveying platform. By using the fixing block, adjustment cavity, spring, and conveying groove in combination, the tension of the conveyed sliver can be automatically adjusted during the operation of the drawing frame. During operation, the sliver is conveyed through the limiting roller, and then the operator presses the adjustment block to compress the spring, allowing the sliver to pass through the conveying groove and be introduced into the drawing frame at one end. Thus, during subsequent operation, the adjustment block can always maintain tension on the sliver under the support of the spring, and can automatically adjust according to the elasticity of the spring, improving its flexibility of use.

[0007] Preferably, the two ends of the adjusting block are respectively provided with a second sliding groove and a slider. Multiple adjusting blocks are provided, and all multiple adjusting blocks are tightly inserted into the adjusting cavity through the slider and the first sliding groove. By providing the first sliding groove and the slider in cooperation, it is convenient for two adjacent adjusting blocks to move relative to each other.

[0008] Preferably, a stepper motor is installed at the bottom of the drawing frame conveyor support, and a screw is provided through the output end of the stepper motor on the surface of the drawing frame conveyor support. A threaded cylinder is vertically installed on the bottom surface of the mounting plate, and the screw and the threaded cylinder are spirally connected. By setting the stepper motor, screw, and threaded cylinder to work together, the height of the mounting plate can be easily adjusted, thereby changing the height of the adjusting block to adjust the tension of the sliver during initial feeding. This method is simple to operate and improves its flexibility of use.

[0009] Preferably, a limiting rod is vertically mounted on the bottom surface of the mounting plate, and a limiting hole is formed through the surface of the drawing frame conveyor bracket. The outer diameter of the limiting rod is equal to the inner diameter of the limiting hole, and a limiting disc is provided at the bottom of the limiting rod. By using the limiting rod, limiting hole, and limiting disc in combination, the mounting plate can be easily limited, ensuring the stability of the mounting plate when it moves up and down on the drawing frame conveyor bracket. Moreover, the limiting disc helps to limit the formation of the threaded cylinder, preventing the screw from falling off the threaded cylinder.

[0010] Preferably, a fixed plate is installed on the top surface of the drawing frame conveyor bracket, and a limit roller is movably installed on the surface of the fixed plate. The horizontal position of the limit roller is lower than the horizontal position of the top surface of the fixed block. By setting the limit roller, it is convenient to convey and limit the cotton sliver.

[0011] Preferably, a reinforcing rib is provided at the bottom corner of the drawing frame conveyor support, and multiple reinforcing ribs are provided. By providing reinforcing ribs, the stability of the drawing frame conveyor support can be improved.

[0012] Preferably, a controller is installed on the outer surface of the drawing frame conveyor support, which facilitates the control of the electrical components inside the equipment.

[0013] Compared with related technologies, the self-adjusting tension drawing mechanism provided by this utility model has the following beneficial effects:

[0014] Compared with existing technologies, this self-adjusting tension drawing frame mechanism, through the coordinated use of a fixed block, adjusting cavity, spring, and conveying trough, facilitates automatic tension adjustment of the conveyed sliver during the drawing frame's operation. During operation, the sliver is conveyed via the limit roller, and then the operator presses the adjusting block to compress the spring, allowing the sliver to pass through the conveying trough and be introduced into the drawing frame at one end. Thus, during subsequent operation, the adjusting block maintains constant tension on the sliver under the support of the spring, and can automatically adjust according to the spring's elasticity, improving... Its flexibility of use is facilitated by the coordinated use of limit rods, limit holes, and limit discs, which allows for easy positioning of the mounting plate and ensures its stability during vertical movement on the drawing frame's conveyor support. Furthermore, the limit discs help to limit the formation of the threaded cylinder, preventing the screw from detaching from it. The coordinated use of the stepper motor, screw, and threaded cylinder allows for easy adjustment of the mounting plate's height, which in turn allows for changes in the height of the adjusting block to adjust the tension of the sliver during initial feeding. This method is simple to operate and enhances its flexibility of use.

[0015] It should be noted that the maximum elastic potential energy of the spring will not cause the cotton strip to break under pressure.

[0016] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0017] Figure 1 A structural schematic diagram of a self-adjusting tension drawing mechanism provided by this utility model;

[0018] Figure 2 A side view of a self-adjusting tension drawing mechanism provided by this utility model;

[0019] Figure 3 A schematic diagram of the adjusting block structure of a self-adjusting tension drawing mechanism provided by this utility model;

[0020] Figure 4A schematic diagram of the fixing block structure of a self-adjusting tension drawing mechanism provided by this utility model;

[0021] Figure 5 A schematic diagram of the conveyor trough structure of a self-adjusting tension drawing mechanism provided by this utility model.

[0022] Numbering on the map:

[0023] 1. Drawing frame conveyor support; 2. Reinforcing rib; 3. Fixing plate; 4. Limiting roller; 5. Mounting plate; 6. Controller; 7. Limiting hole; 8. Limiting disc; 9. Limiting rod; 10. Fixing block; 11. Threaded cylinder; 12. Screw; 13. Stepper motor; 14. Adjusting block; 15. First slide groove; 16. Adjusting cavity; 17. Second slide groove; 18. Sliding block; 19. Pressure sensor; 20. Arc-shaped conveyor table; 21. Spring; 22. Conveying trough. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] First Embodiment

[0026] Please refer to the following: Figure 1-5 A self-adjusting tension drawing frame mechanism includes a drawing frame conveyor support 1, an mounting plate 5 above the drawing frame conveyor support 1, a fixing block 10 on the top surface of the mounting plate 5, an adjustment cavity 16 on the top surface of the fixing block 10, first sliding grooves 15 on the inner walls at both ends of the adjustment cavity 16, a spring 21 vertically mounted at the bottom of the adjustment cavity 16, an adjustment block 14 on the top of the spring 21, a conveying groove 22 on the top surface of the adjustment block 14, an arc-shaped conveying table 20 at one end of the conveying groove 22, and a pressure sensor 1 embedded in the surface of the arc-shaped conveying table 20. 9. By using the fixed block 10, adjusting cavity 16, spring 21, adjusting block 14, and conveying groove 22 in combination, the tension of the cotton sliver being conveyed can be automatically adjusted during the operation of the drawing frame. During operation, the cotton sliver is conveyed through the limiting roller 4, and then the operator presses the adjusting block 14 to compress the spring 21, so that the cotton sliver passes through the conveying groove 22 and is then introduced into the drawing frame. Thus, during subsequent operation, the adjusting block 14 can always maintain tension on the cotton sliver under the support of the spring 21, and can automatically adjust according to the elasticity of the spring 21, improving its flexibility of use.

[0027] The working principle of the self-adjusting tension drawing mechanism provided by this utility model is as follows:

[0028] In this self-adjusting tension drawing frame mechanism, the sliver is fed through the limiting roller 4 during operation. Then, the operator presses the adjusting block 14 to compress the spring 21, causing the sliver to pass through the conveying groove 22. Afterward, one end of the sliver is introduced into the drawing frame. Thus, during subsequent operation, the adjusting block 14 remains taut on the sliver under the support of the spring 21. Furthermore, the spring 21 can automatically adjust according to its elasticity, improving its operational flexibility. The use of the limiting rod 9, limiting hole 7, and limiting disc 8 facilitates installation... The plate 5 is positioned to ensure stability when it moves up and down on the draw frame conveyor bracket 1. The limiting plate 8 also limits the formation of the threaded cylinder 11, preventing the screw 12 from falling off. The stepper motor 13, screw 12, and threaded cylinder 11 work together to adjust the height of the plate 5, which in turn changes the height of the adjusting block 14 to adjust the tension of the sliver during initial feeding. This method is simple to operate and improves the flexibility of its use.

[0029] Compared with related technologies, the self-adjusting tension drawing mechanism provided by this utility model has the following beneficial effects:

[0030] This self-adjusting tension drawing frame mechanism, through the coordinated use of a fixed block 10, an adjusting cavity 16, a spring 21, an adjusting block 14, and a conveying groove 22, facilitates automatic tension adjustment of the conveyed sliver during the operation of the drawing frame. During operation, the sliver is conveyed through the limiting roller 4, and then the operator presses the adjusting block 14 to compress the spring 21, allowing the sliver to pass through the conveying groove 22. Afterward, one end of the sliver is introduced into the drawing frame. Thus, during subsequent operation, the adjusting block 14, supported by the spring 21, maintains constant tension on the sliver. Furthermore, the spring 21's elasticity allows for automatic adjustment, improving its performance. The system offers flexibility by using a combination of limiting rod 9, limiting hole 7, and limiting disc 8 to limit the mounting plate 5, ensuring its stability as it moves up and down on the draw frame conveyor bracket 1. The limiting disc 8 also limits the formation of the threaded cylinder 11, preventing the screw 12 from detaching from it. Furthermore, the combination of stepper motor 13, screw 12, and threaded cylinder 11 allows for easy adjustment of the mounting plate 5's height, which in turn allows for changing the height of adjusting block 14 to adjust the tension of the sliver during initial feeding. This method is simple to operate and enhances its flexibility.

[0031] Second Embodiment

[0032] Please refer to the following: Figure 1-5Based on the self-adjusting tension rolling mechanism provided in the first embodiment of this application, the second embodiment of this application proposes another self-adjusting tension rolling mechanism. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0033] Based on Example 1, see [link / reference] Figure 1-5 The adjustment block 14 has a second sliding groove 17 and a slider 18 on its two end surfaces respectively. Multiple adjustment blocks 14 are provided, and multiple adjustment blocks 14 are tightly inserted into the adjustment cavity 16 through the slider 18 and the first sliding groove 15. By setting the first sliding groove 15 and the slider 18 in cooperation, it is easy to move two adjacent adjustment blocks 14 to each other.

[0034] Based on Example 1, see [link / reference] Figure 1-5 A stepper motor 13 is installed at the bottom of the drawing frame conveyor bracket 1. A screw 12 is provided through the output end of the stepper motor 13 and passes through the surface of the drawing frame conveyor bracket 1. A threaded cylinder 11 is vertically installed on the bottom surface of the mounting plate 5. The screw 12 and the threaded cylinder 11 are spirally connected. By setting the stepper motor 13, screw 12 and threaded cylinder 11 in cooperation, the height of the mounting plate 5 can be easily adjusted, thereby changing the height of the adjusting block 14 to adjust the tension of the cotton sliver during initial position. This method is simple to operate and improves its flexibility of use.

[0035] Based on Example 1, see [link / reference] Figure 1-5 A limiting rod 9 is vertically mounted on the bottom surface of the mounting plate 5, and a limiting hole 7 is formed through the surface of the drawing frame conveyor bracket 1. The outer diameter of the limiting rod 9 is equal to the inner diameter of the limiting hole 7. A limiting disc 8 is provided at the bottom of the limiting rod 9. By using the limiting rod 9, the limiting hole 7 and the limiting disc 8 together, the mounting plate 5 can be limited, which can ensure the stability of the mounting plate 5 when it moves up and down on the drawing frame conveyor bracket 1. Moreover, the setting of the limiting disc 8 can limit the formation of the threaded cylinder 11 and prevent the screw 12 from falling off the threaded cylinder 11.

[0036] Based on Example 1, see [link / reference] Figure 1-5 A fixed plate 3 is installed on the top surface of the drawing frame conveyor bracket 1. A limit roller 4 is movably installed on the surface of the fixed plate 3. The horizontal position of the limit roller 4 is lower than the horizontal position of the top surface of the fixed block 10. By setting the limit roller 4, it is convenient to convey and limit the cotton sliver.

[0037] Based on Example 1, see [link / reference] Figure 1-5 The bottom corner of the drawing frame conveyor support 1 is provided with a reinforcing rib 2, and there are multiple reinforcing ribs 2. By providing the reinforcing ribs 2, the stability of the drawing frame conveyor support 1 can be improved.

[0038] Based on Example 1, see [link / reference] Figure 1-5 The outer surface of the drawing frame conveyor support 1 is equipped with a controller 6. By setting the controller 6, it is convenient to control the electrical components inside the equipment. The control circuit of the control panel can be implemented by simple programming by those skilled in the art. It is common knowledge in the art. It is only used and not modified. Therefore, the control method and circuit connection will not be described in detail.

[0039] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A self-adjusting tension drawing frame mechanism, comprising a drawing frame conveyor support (1), characterized in that, An mounting plate (5) is provided above the drawing frame conveyor bracket (1). A fixing block (10) is provided on the top surface of the mounting plate (5). An adjustment cavity (16) is provided on the top surface of the fixing block (10). A first sliding groove (15) is provided on the inner wall of both ends of the adjustment cavity (16). A spring (21) is vertically installed at the bottom of the adjustment cavity (16). An adjustment block (14) is provided at the top of the spring (21). A conveying groove (22) is provided on the top surface of the adjustment block (14). An arc-shaped conveying table (20) is provided at one end of the conveying groove (22). A pressure sensor (19) is embedded on the surface of the arc-shaped conveying table (20).

2. The self-adjusting tension drawing mechanism according to claim 1, characterized in that, The two ends of the adjustment block (14) are respectively provided with a second slide groove (17) and a slider (18). There are multiple adjustment blocks (14), and all multiple adjustment blocks (14) are tightly inserted into the adjustment cavity (16) through the slider (18) and the first slide groove (15).

3. The self-adjusting tension drawing mechanism according to claim 1, characterized in that, A stepper motor (13) is installed at the bottom of the draw frame conveyor bracket (1). A screw (12) is provided through the output end of the stepper motor (13) on the surface of the draw frame conveyor bracket (1). A threaded cylinder (11) is vertically installed on the bottom surface of the mounting plate (5). The screw (12) and the threaded cylinder (11) are spirally connected.

4. The self-adjusting tension drawing mechanism according to claim 1, characterized in that, A limiting rod (9) is vertically installed on the bottom surface of the mounting plate (5), and a limiting hole (7) is opened through the surface of the drawing frame conveyor bracket (1). The outer diameter of the limiting rod (9) is equal to the inner diameter of the limiting hole (7), and a limiting plate (8) is provided at the bottom of the limiting rod (9).

5. A self-adjusting tension drawing mechanism according to claim 1, characterized in that, A fixing plate (3) is installed on the top surface of the drawing frame conveyor bracket (1), and a limiting roller (4) is movably installed on the surface of the fixing plate (3). The horizontal position of the limiting roller (4) is lower than the horizontal position of the top surface of the fixing block (10).

6. The self-adjusting tension drawing mechanism according to claim 1, characterized in that, The bottom corner of the drawing frame conveyor support (1) is provided with reinforcing ribs (2), and there are multiple reinforcing ribs (2).

7. A self-adjusting tension drawing mechanism according to claim 1, characterized in that, A controller (6) is installed on the outer surface of the draw frame conveyor support (1).

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