A roller drafting and drawing machine

Abstract

This utility model discloses a roller drafting and drawing frame, belonging to the field of textile machinery technology. It includes a fixed frame with multiple sets of equidistant mounting slots inside. Multiple rollers are arranged inside the fixed frame, and each roller has a positioning sleeve fixedly connected to both ends. A fixed seat is fixedly connected to the far end of each set of positioning sleeves, and each fixed seat is slidably connected inside the mounting slot. Multiple sets of equidistant limiting rods are slidably connected inside the fixed frame, with the near end of each set of limiting rods extending into the interior of the fixed seat. An auxiliary ring is fixedly connected to the outer surface of each set of limiting rods. This roller drafting and drawing frame, through the cooperation of multiple components, eliminates the need for disassembling numerous bolts and other parts using special tools, significantly shortening component replacement time. Whether it's replacing rollers due to wear or maintaining the leather rollers due to aging, the operation can be completed quickly, effectively reducing equipment downtime.

Description

Technical Field

[0001] This utility model belongs to the field of textile machinery technology, and in particular relates to a roller drafting and drawing frame. Background Technology

[0002] Roller drafting and drawing frames are key pieces of equipment in textile production. They use rollers and derricks to draft and combine fiber slivers to improve the uniformity of the fiber slivers. During long-term use, rollers and derricks are prone to wear and aging, requiring regular replacement or maintenance.

[0003] Existing components such as rollers and skin rollers are usually connected to the frame by fixed structures such as bolts and bearing seats. When replacing them, multiple fasteners need to be removed using special tools, which is cumbersome and time-consuming, seriously affecting production efficiency. In particular, when it is necessary to frequently change different specifications of components to adapt to different fiber raw materials or process requirements, it is difficult to meet the needs of rapid changeover.

[0004] Therefore, we propose a roller drafting and drawing machine to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problem of inconvenient component replacement in existing roller drafting and drawing frames, and to propose a roller drafting and drawing frame.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A roller drafting and drawing frame includes a fixed frame with multiple sets of equally spaced mounting slots inside. Multiple rollers are arranged inside the fixed frame, and each roller has a positioning sleeve fixedly connected to both ends. A fixed seat is fixedly connected to the far end of each set of positioning sleeves. Each fixed seat is slidably connected inside the mounting slot. Multiple sets of equally spaced limiting rods are slidably connected inside the fixed frame. The near end of each set of limiting rods extends into the interior of the fixed seat. An auxiliary ring is fixedly connected to the outer surface of each set of limiting rods. A return spring is arranged inside each set of limiting rods. The near end of each set of return springs is fixedly connected to the far end of the auxiliary ring, and the far end of each set of return springs is fixedly connected to the inner wall of the fixed frame. Multiple equally spaced rubber rollers are arranged above the fixed frame. Multiple sets of equally spaced limiting seats are fixedly connected to the upper surface of the fixed frame. A limiting block is slidably connected inside each set of limiting seats. Each rubber roller is located inside the limiting seat and the limiting block.

[0008] Preferably, the bottom surface of the fixing frame is fixedly connected to two support legs, and the outer surface of each support leg is fixedly connected to an anti-slip sleeve.

[0009] Preferably, each set of limiting rods has a baffle fixedly connected to one end that is far apart from each other, and each set of baffles has an auxiliary handle fixedly connected to one side that is far apart from each other.

[0010] Preferably, each set of auxiliary handles has two fixed rings on its outer surface, and the side of each set of fixed rings that is close to each other is fixedly connected to the side of the baffle that is far away from each other.

[0011] Preferably, each set of limiting seats and limiting blocks has an anti-slip rubber pad fixedly connected to its inner wall, and each anti-slip rubber pad has an anti-slip groove on its inner wall.

[0012] Preferably, each set of limiting blocks has a positioning block fixedly connected to both the left and right sides, and each set of positioning blocks is slidably connected to the inside of the limiting seat.

[0013] Preferably, each of the limiting blocks has two fixing bolts slidably connected inside, and each set of fixing bolts is threadedly connected to the limiting seat.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] By incorporating rollers connected to a fixed base via a positioning sleeve, and with the fixed base slidably installed in the mounting groove and then secured by a limit rod and a return spring, displacement of the rollers during operation is effectively prevented. The rubber rollers are stably installed through the cooperation of a limit seat, limit block, and fixing bolts, preventing loosening or displacement during operation. This unique structural design eliminates the need for disassembling numerous bolts and other components using specialized tools, significantly reducing component replacement time. Whether the rollers need replacement due to wear or the rubber rollers require maintenance due to aging, the operation can be completed quickly, effectively reducing equipment downtime. This is particularly beneficial in scenarios requiring frequent replacement of components of different specifications to adapt to different fiber raw materials or process requirements, meeting rapid changeover needs and significantly improving overall production efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional cross-sectional structural diagram of the fixing frame of this utility model;

[0018] Figure 3 This is a three-dimensional cross-sectional structural diagram of the fixing base of this utility model;

[0019] Figure 4 This is a three-dimensional cross-sectional structural diagram of the limiting seat of this utility model;

[0020] Figure 5This is a cross-sectional three-dimensional structural schematic diagram of the limiting block of this utility model.

[0021] In the diagram: 1. Fixed frame; 2. Mounting groove; 3. Roller roller; 4. Positioning bushing; 5. Fixed seat; 6. Limiting rod; 7. Auxiliary ring; 8. Return spring; 10. Rubber roller; 11. Limiting seat; 12. Limiting block; 13. Fixing bolt; 14. Support leg; 15. Anti-slip sleeve; 16. Baffle; 17. Auxiliary handle; 18. Secure ring; 19. Anti-slip rubber pad; 20. Anti-slip groove; 21. Positioning block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-5 A roller drafting and drawing frame includes a fixed frame 1. The fixed frame 1 has multiple sets of equally spaced mounting slots 2 inside. Two support legs 14 are fixedly connected to the bottom surface of the fixed frame 1. Each support leg 14 has an anti-slip sleeve 15 fixedly connected to its outer surface. The support legs 14 mainly support the fixed frame 1, supporting the fixed frame 1 and the roller rollers 3, skin rollers 10 and other components installed on it, so that the fixed frame 1 is kept at a certain distance from the ground. The anti-slip sleeve 15 is fixed to the outer surface of the support leg 14. Its material usually has a high coefficient of friction, which can increase the friction between the support leg 14 and the ground, effectively preventing the equipment from sliding or shifting due to vibration and other factors during operation.

[0024] The fixed frame 1 has multiple rollers 3 inside, and each roller 3 has a positioning sleeve 4 fixedly connected to both ends. Each set of positioning sleeves 4 has a fixed seat 5 fixedly connected to the opposite end. Each fixed seat 5 is slidably connected to the inside of the mounting groove 2. The fixed frame 1 has multiple sets of equidistant limit rods 6 slidably connected inside. Each set of limit rods 6 has a baffle 16 fixedly connected to the opposite end. Each set of baffles 16 has an auxiliary handle 17 fixedly connected to the opposite side. The baffle 16 is fixed to the opposite end of the limit rods 6 and can limit the sliding stroke of the limit rods 6. It prevents the limit rods 6 from sliding excessively towards the fixed seat 5 under the action of the return spring 8 and disengaging from the inside of the fixed frame 1. It ensures that the limit rods 6 always move within a reasonable range and ensures that their limiting function of the fixed seat 5 is properly realized. The auxiliary handle 17 is set on the baffle 16, providing the operator with a convenient point of force application.

[0025] Each set of limiting rods 6 extends into the interior of the fixed base 5 at one end, and an auxiliary ring 7 is fixedly connected to the outer surface of each set of limiting rods 6. Two retaining rings 18 are fixedly connected to the outer surface of each set of auxiliary handles 17. The side of each set of retaining rings 18 that is close to each other is fixedly connected to the side of the baffle 16 that is far from each other. The retaining rings 18 enhance the stability of the connection between the auxiliary handle 17 and the baffle 16. During frequent pulling of the auxiliary handle 17 by the operator, the connection between the auxiliary handle 17 and the baffle 16 will be subjected to significant tensile force, which may lead to loosening or breakage over time. The retaining rings 18 disperse the tensile force on this connection, preventing the auxiliary handle 17 from detaching from the baffle 16 due to excessive force, extending the service life of the auxiliary handle 17, and ensuring the continuity and stability of the operation.

[0026] Each set of limit rods 6 is equipped with a return spring 8 inside. The ends of each set of return springs 8 that are close to each other are fixedly connected to the ends of the auxiliary rings 7 that are far from each other. The inner walls of each set of limit seats 11 and limit blocks 12 are fixedly connected with anti-slip rubber pads 19. Each anti-slip rubber pad 19 has an anti-slip groove 20 on its inner wall. The anti-slip rubber pads 19 and anti-slip grooves 20 are fixed to the inner walls of the limit seats 11 and limit blocks 12. Their material is soft and has a high coefficient of friction. When the roller 10 is installed between the limit seats 11 and limit blocks 12, the anti-slip rubber pads 19 can make close contact with the surface of the roller 10, increasing the friction between the two and effectively preventing the roller 10 from slipping during high-speed rotation.

[0027] Each set of return springs 8 has one end that is far apart from the others fixedly connected to the inner wall of the fixed frame 1. Multiple rollers 10 are arranged at equal intervals above the fixed frame 1. Multiple sets of equidistant limit seats 11 are fixedly connected to the upper surface of the fixed frame 1. Each set of limit seats 11 has a limit block 12 slidably connected inside. Positioning blocks 21 are fixedly connected to the left and right sides of each set of limit blocks 12. Each set of positioning blocks 21 is slidably connected inside the limit seat 11. The positioning blocks 21 serve as guides and positions during the installation of the limit block 12 into the limit seat 11. When the operator installs the limit block 12, they only need to align the positioning block 21 with the corresponding groove inside the limit seat 11 and slide it in to ensure that the limit block 12 is accurately installed in the preset position, avoiding installation offset or misalignment of the limit block 12, reducing the time and effort required for the operator to adjust the position of the limit block 12, and improving installation efficiency.

[0028] Each roller 10 is located inside the limiting seat 11 and the limiting block 12. Each limiting block 12 has two slidably connected fixing bolts 13. Each set of fixing bolts 13 is threadedly connected to the limiting seat 11. The fixing bolts 13 are key components for achieving a fixed connection between the limiting block 12 and the limiting seat 11. After the limiting block 12 is installed inside the limiting seat 11 via the positioning block 21, the fixing bolts 13 are passed through the limiting block 12 and threadedly connected to the limiting seat 11. By tightening the fixing bolts 13, the limiting block 12 and the limiting seat 11 are tightly fitted, thus firmly clamping the roller 10 between the limiting seat 11 and the limiting block 12. This prevents the roller 10 from loosening, falling off, or shifting during operation, ensuring the stability and reliability of the roller 10's operation.

[0029] The working principle of this utility model is as follows: In use, firstly, the positioning bushings 4 fixedly connected to both ends of each roller roller 3 are assembled with the fixed seat 5. Then, the fixed seat 5 is slidably installed into the mounting groove 2 opened inside the fixed frame 1, completing the initial positioning of the roller roller 3. Next, under the action of the return spring 8, the auxiliary ring 7 will push the limiting rod 6 to move closer to the fixed seat 5, so that one end of the limiting rod 6 extends into the interior of the fixed seat 5, thereby limiting and fixing the fixed seat 5, and finally achieving stable installation of the roller roller 3 on the fixed frame 1. To ensure it does not shift during operation, when the roller roller 3 needs to be replaced, the operator pulls the auxiliary handle 17, causing the baffle 16 and the limiting rod 6 fixedly connected to the baffle 16 to move away from the fixed seat 5. At this time, the auxiliary ring 7 will compress the return spring 8, and the limiting rod 6 will disengage from the fixed seat 5, releasing the limitation on the fixed seat 5. Then, the fixed seat 5 along with the roller roller 3 can be removed from the mounting slot 2 for replacement. After replacement, the auxiliary handle 17 is released, the return spring 8 returns to its original deformation, and pushes the auxiliary ring 7 and the limiting rod 6 back to their original positions. The new fixed seat 5 is then fixed again. When the roller 10 needs to be installed, the roller 10 is placed inside the fixed seat 11 on the upper surface of the fixed frame 1. Then, the limiting block 12 is slidably connected to the limiting seat 11 through the positioning block 21. The positioning block 21 ensures that the limiting block 12 is accurately installed and avoids displacement. After the limiting block 12 is installed, the fixing bolt 13 is passed through the limiting block 12 and threadedly connected to the limiting seat 11. By tightening the fixing bolt 13, the limiting block 12 and the limiting seat 11 are tightly fitted, thereby securing the roller 10. Roller 10 is securely clamped between limit seat 11 and limit block 12. At the same time, anti-slip rubber pads 19 and anti-slip grooves 20 are fixed on the inner walls of limit seat 11 and limit block 12, which can increase the friction between the roller 10 and the limit seat 11, and further prevent the roller 10 from slipping or rotating off during operation. When the roller 10 needs to be replaced, simply loosen the fixing bolts 13, remove the limit block 12 from the limit seat 11, and the old roller 10 can be removed and replaced. After replacement, the roller can be re-fixed according to the above installation steps.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A roller draft drawing frame comprising a fixed frame (1), characterised in that: The fixed frame (1) has multiple sets of equally spaced mounting slots (2) inside. Multiple rollers (3) are installed inside the fixed frame (1). Each roller (3) has a positioning sleeve (4) fixedly connected to both ends. A fixed seat (5) is fixedly connected to the far end of each set of positioning sleeves (4). Each fixed seat (5) is slidably connected inside the mounting slot (2). Multiple sets of equally spaced limiting rods (6) are slidably connected inside the fixed frame (1). The near ends of each set of limiting rods (6) extend into the interior of the fixed seat (5). An auxiliary ring is fixedly connected to the outer surface of each set of limiting rods (6). 7) Each set of limiting rods (6) is provided with a return spring (8) inside. The end of each set of return springs (8) that is close to each other is fixedly connected to the end of the auxiliary ring (7) that is far away from each other. The end of each set of return springs (8) that is far away from each other is fixedly connected to the inner wall of the fixed frame (1). Multiple rollers (10) arranged at equal distances are provided above the fixed frame (1). Multiple sets of limiting seats (11) arranged at equal distances are fixedly connected to the upper surface of the fixed frame (1). Each set of limiting seats (11) is slidably connected to a limiting block (12). Each roller (10) is located inside the limiting seat (11) and the limiting block (12).

2. A roller draft drawing frame according to claim 1, characterised in that: The bottom surface of the fixed frame (1) is fixedly connected to two support legs (14), and each support leg (14) is fixedly connected to an anti-slip sleeve (15) on its outer surface.

3. A roller draft drawing frame according to claim 1, characterised in that: Each set of limiting rods (6) has a baffle (16) fixedly connected to one end of each set of baffles (16) that are far apart from each other, and an auxiliary handle (17) fixedly connected to one side of each set of baffles (16) that are far apart from each other.

4. A roller draft drawing frame according to claim 3, characterised in that: Two sturdy rings (18) are fixedly connected to the outer surface of each set of auxiliary handles (17), and the side of each set of sturdy rings (18) that is close to each other is fixedly connected to the side of the baffle (16) that is far away from each other.

5. A roller draft drawing frame according to claim 1, characterised in that: Each set of limiting seats (11) and limiting blocks (12) has an anti-slip rubber pad (19) fixedly connected to its inner wall, and each anti-slip rubber pad (19) has an anti-slip groove (20) on its inner wall.

6. A roller draft drawing frame according to claim 1, characterised in that: Each set of limiting blocks (12) has a positioning block (21) fixedly connected to its left and right sides, and each set of positioning blocks (21) is slidably connected to the inside of the limiting seat (11).

7. A roller draft drawing frame according to claim 1, characterized in that; Each of the limiting blocks (12) has two fixing bolts (13) slidably connected inside, and each set of fixing bolts (13) is threadedly connected to the limiting seat (11).

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