Tension adjusting assembly for circular weaving machine

Abstract

The utility model discloses a tension adjusting assembly for a circular weaving machine, which belongs to the technical field of circular weaving machines and comprises a mounting seat suitable for being connected with the circular weaving machine. One end of the tension piece is rotationally connected with the mounting seat, and the other end of the tension piece is suitable for contacting with yarns; one end of the mounting pipe fitting is rotationally connected with the mounting base, a mounting cavity is formed in the mounting pipe fitting, the mounting pipe fitting comprises a moving part, one end of the moving part is movably contained in the mounting cavity, and the other end of the moving part is rotationally connected between one end and the other end of the tension part; the reset spring is contained in the installation cavity, one end of the reset spring is connected with the installation pipe fitting, and the other end of the reset spring is connected with the moving part. According to the tension adjusting assembly designed by the utility model, soft flocks and the like generated in the production process of the circular weaving machine can be prevented from being attached to the reset spring, so that the soft flocks and the like are prevented from influencing the work of the reset spring, and the production quality of the circular weaving machine is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of circular loom technology, and specifically relates to a tension adjustment component for circular looms. Background Technology

[0002] In the textile industry, circular looms are key equipment for manufacturing various fabrics. To ensure the quality and consistency of the final product, it is necessary to ensure that the yarn maintains appropriate tension throughout the weaving process. In the prior art, one end of the return spring is connected to the circular loom, and the other end is connected to the tensioning element. The tension during the weaving process is ensured by the elasticity of the return spring. However, lint and other debris generated during the production process of the circular loom will adhere to the return spring, thereby affecting the normal operation of the return spring and thus affecting the production quality of the circular loom. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a tension adjustment assembly for a circular loom.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a tension adjustment assembly for a circular loom, comprising: a mounting base adapted to be connected to the circular loom; a tension member, one end of which is rotatably connected to the mounting base, and the other end of which is adapted to contact the yarn; a mounting tube, one end of which is rotatably connected to the mounting base, the mounting tube having a mounting cavity, the mounting tube including a movable part, one end of which is movably housed within the mounting cavity, and the other end of which is rotatably connected between one end and the other end of the tension member; and a return spring, housed within the mounting cavity, one end of which is connected to the mounting tube, and the other end of which is connected to the movable part.

[0006] According to the tension adjustment component for a circular loom of this utility model, by setting the return spring inside the mounting cavity, it is possible to prevent lint and other debris generated during the production process of the circular loom from adhering to the return spring, thereby avoiding the impact of lint and other debris on the operation of the return spring and ensuring the production quality of the circular loom. At the same time, the mounting cavity can limit the deformation of the return spring, thereby ensuring the deformation shape of the return spring and avoiding irregular deformation of the return spring. This ensures the effectiveness of the return spring while extending its service life.

[0007] Furthermore, the mounting fitting includes: a mounting cylinder having the mounting cavity inside; a movable member configured as the movable part, one end of which is movably housed within the mounting cavity; and a connecting member movably connected to the end of the mounting cylinder opposite to the movable part, at least a portion of which extends into the mounting cavity and is connected to the return spring, the end of which is opposite to the return spring being rotatably connected to the mounting base, and the connecting member being adapted to move axially relative to the mounting cylinder.

[0008] Furthermore, the connector includes: a connecting rod, one end of which is located inside the mounting cavity and connected to the return spring, and the other end of which is located outside the mounting cavity; and a mounting block, which is detachably connected to the other end of the connecting rod and rotatably connected to the mounting base.

[0009] Furthermore, the outer peripheral wall of the connecting rod is provided with a first thread, the mounting block is provided with a connecting channel that extends axially, and the inner peripheral wall of the connecting channel is provided with a second thread, wherein the first thread and the second thread cooperate.

[0010] Furthermore, the movable component includes: a movable tube, one end of which is movably housed within the mounting cavity, the movable tube having an axially penetrating connecting cavity, at least a portion of which is located within the connecting cavity; and a connecting cover, the connecting rod being detachably disposed on the side of the movable tube opposite to the mounting tube, at least a portion of which is located within the connecting cavity and connected to the returning spring, the end of the connecting cover opposite to the movable tube being rotatably connected to the tensioning component.

[0011] Furthermore, one end of the return spring is detachably connected to the connecting rod, and the other end of the return spring is detachably connected to the connecting cover.

[0012] Furthermore, the outer diameter of the movable tube is d1, and the inner diameter of the mounting cavity is d2, satisfying: 0.2mm≤d2-d1≤0.4mm.

[0013] Furthermore, the mounting base includes: a mounting plate adapted to be connected to a circular loom; two side plates respectively disposed on both sides of the mounting plate in the width direction; wherein one end of the tension member is rotatably connected to the two side plates respectively, and the mounting block is rotatably connected to the two side plates respectively.

[0014] Furthermore, the mounting block has two connecting ears on the side opposite to the connecting rod. The two connecting ears are located on both sides of the connecting channel in the radial direction and are rotatably connected to the two side plates respectively. The screw passes through the side plate and the corresponding connecting ear in sequence and is rotatably connected to the first nut. The screw is also connected to a second nut, which is located between the side plate and the corresponding connecting ear. The connecting ear is located between the corresponding first nut and the second nut.

[0015] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0017] Figure 1 This is a cross-sectional view of the mounting fitting and the return spring of this utility model.

[0018] Figure 2 This is an exploded view showing the fit between the mounting fitting and the return spring of this utility model.

[0019] Figure 3 This is an exploded view of the tension adjustment component of this utility model.

[0020] The following labels are shown in the attached diagram:

[0021] 1. Tension adjustment assembly;

[0022] 11. Mounting plate; 12. Side plate;

[0023] 20. Tensioning components;

[0024] 31. Mounting cylinder; 32. Moving part; 321. Moving tube; 322. Connecting cover; 33. Connecting part; 331. Connecting rod; 332. Mounting block; 333. Connecting lug;

[0025] 40. Return spring; 50. Screw; 60. First nut; 70. Second nut. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0027] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other instances, well-known structures, circuits, materials, or methods have not been specifically described in order to avoid obscuring the present invention.

[0028] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] In the description of this utility model, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0030] Example 1:

[0031] like Figures 1-3 As shown, this utility model provides a tension adjustment assembly 1 for a circular loom, including: a mounting base, a tension member 20, a mounting tube, and a return spring 40. The mounting base is adapted to be connected to the circular loom. One end of the tension member 20 is rotatably connected to the mounting base, and the other end of the tension member 20 is adapted to contact the yarn. One end of the mounting tube is rotatably connected to the mounting base. The mounting tube has a mounting cavity and includes a movable part. One end of the movable part is movably housed in the mounting cavity, and the other end of the movable part is rotatably connected between one end and the other end of the tension member 20. The return spring 40 is housed in the mounting cavity. One end of the return spring 40 is connected to the mounting tube, and the other end of the return spring 40 is connected to the movable part.

[0032] In some embodiments, the mounting base is connected to the circular loom and can provide basic support for the entire tension adjustment assembly 1. One end of the tension member 20 is rotatably connected to the mounting base to allow a certain degree of rotational freedom. The other end of the tension member 20 is designed to contact the yarn so that the tension of the yarn can be adjusted by adjusting the angle. One end of the mounting tube is rotatably connected to the mounting base, and the mounting tube has a mounting cavity inside. The mounting tube contains a moving part. One end of the moving part can move in the mounting cavity, while the other end of the moving part is rotatably connected to the tension member 20. The return spring 40 is located in the mounting cavity, and the two ends of the return spring 40 are respectively connected to the mounting tube and the moving part. The function of the return spring 40 is to provide the necessary elasticity to help maintain or restore the position of the tension member 20.

[0033] Understandably, by utilizing the elastic force provided by the return spring 40 to automatically adjust the yarn tension, when the yarn tension changes (e.g., increases or decreases), the tension member 20 will rotate accordingly around the connection point with the mounting base, while simultaneously driving the moving part to move within the mounting cavity. Specifically, the movement of the moving part will compress or stretch the return spring 40. According to the physical properties of the spring (Hooke's Law), the return spring 40 will attempt to return to its original state, thereby applying a reverse force to the tension member 20 to maintain the yarn tension within a stable range.

[0034] It is worth mentioning that, due to the rotatable design and the elasticity of the spring, the tension adjustment component 1 can adapt to changes in different tension requirements, increasing the flexibility and applicability of the circular loom. Moreover, by placing the return spring 40 inside the mounting cavity, not only is the spring protected from the influence of the external environment (such as dust and lint), but the overall structure is also more compact, reducing the impact of external factors on the working performance of the tension adjustment component 1, which helps to extend the service life of the return spring 40 and simplify the maintenance process.

[0035] According to the tension adjustment component 1 for a circular loom of this utility model, by setting the return spring 40 in the mounting cavity, it is possible to prevent lint and other debris generated during the production process of the circular loom from adhering to the return spring 40, thereby preventing the lint and other debris from affecting the operation of the return spring 40, thus ensuring the production quality of the circular loom. At the same time, the mounting cavity can limit the deformation of the return spring 40, thereby ensuring the deformation shape of the return spring 40, avoiding irregular deformation of the return spring 40, ensuring the effective function of the return spring 40, and extending the service life of the return spring 40.

[0036] Example 2:

[0037] Based on Embodiment 1, this embodiment includes an installation tube 31, a movable part 32, and a connecting part 33. The installation tube 31 has an installation cavity. The movable part 32 is configured as a movable portion, and one end of the movable part 32 is movably housed in the installation cavity. The connecting part 33 is movably connected to the end of the installation tube 31 away from the movable portion. At least a portion of the connecting part 33 extends into the installation cavity and is connected to the return spring 40. The end of the connecting part 33 away from the return spring 40 is rotatably connected to the mounting base. The connecting part 33 is adapted to move axially relative to the installation tube 31.

[0038] In some embodiments, the mounting cylinder 31 is the main part of the mounting fitting. The mounting cylinder 31 has a mounting cavity inside, which is mainly used to accommodate the return spring 40 and the moving part 32 (i.e., the moving part) to provide a protective environment and prevent external impurities (such as lint) from entering and affecting the working performance of the return spring 40. One end of the moving part 32 can move freely in the mounting cavity to allow the tension member 20 to adjust its position according to the tension change of the yarn, while adjusting the tension by compressing or stretching the return spring 40. The connecting member 33 is connected to the end of the mounting cylinder 31 away from the moving part 32, and at least a portion of it extends into the mounting cavity and is connected to the return spring 40. The connecting member 33 can move axially relative to the mounting cylinder 31 to move with the compression or stretching of the return spring 40. The end of the connecting member 33 away from the return spring 40 is rotatably connected to the mounting seat, so that the entire mounting fitting can rotate within a certain range to adapt to the angle adjustment requirements under different working conditions.

[0039] Understandably, when the yarn tension changes, the tensioning element 20 drives the moving element 32 to move within the mounting cavity, causing the return spring 40 to be compressed or stretched. Furthermore, due to the rotational connection between the connecting element 33 and the mounting base, the entire mounting tube can be adjusted to the necessary angle.

[0040] It is worth mentioning that the connector 33 is adapted to move axially relative to the mounting cylinder 31. Thus, the user can adjust the initial reset force of the return spring 40 by adjusting the position of the connector 33 relative to the mounting cylinder 31 in the axial direction, thereby adapting to the production of different woven bags.

[0041] According to some embodiments of the present invention, the connector 33 includes a connecting rod 331 and a mounting block 332. One end of the connecting rod 331 is located inside the mounting cavity and connected to the return spring 40, and the other end of the connecting rod 331 is located outside the mounting cavity. The mounting block 332 is detachably connected to the other end of the connecting rod 331, and the mounting block 332 is rotatably connected to the mounting base.

[0042] Understandably, when the tension of the yarn changes, the tensioning element 20 will drive the moving element 32 to move within the mounting cavity, thereby causing the return spring 40 to compress or stretch. Since one end of the connecting rod 331 is connected to the return spring 40, and the other end of the connecting rod 331 is fixed to the mounting base through the mounting block 332, the connecting rod 331 can effectively transmit these changes to the mounting base and adjust its position as needed.

[0043] Of course, a detachable connection method is adopted (between the connecting rod 331 and the mounting block 332) to facilitate the maintenance or replacement of internal components (such as the return spring 40, the moving part 32, etc.), thereby enabling the replacement or repair of a single part without completely disassembling the entire device, which facilitates maintenance and regular inspection.

[0044] Example 3:

[0045] Based on Embodiment 2, this embodiment has a first thread on the outer peripheral wall of the connecting rod 331, a connecting channel that extends axially on the mounting block 332, and a second thread on the inner peripheral wall of the connecting channel, with the first thread engaging with the second thread.

[0046] Understandably, the combination of the first thread and the second thread not only facilitates the connection and disassembly between the connecting rod 331 and the mounting block 332, but also allows the user to adjust the axial position of the connecting rod 331 relative to the mounting cylinder 31 by rotating the mounting block 332, thereby adjusting the initial reset force of the return spring 40. The adjustment of the initial reset force of the return spring 40 is simple, allowing the user to quickly switch the gears of the circular loom to adapt to the production of different woven bags.

[0047] According to some embodiments of this utility model, the movable component 32 includes: a movable tube 321 and a connecting cover 322. One end of the movable tube 321 is movably housed in the mounting cavity. A connecting cavity extending axially is provided inside the movable tube 321. At least a portion of the return spring 40 is located within the connecting cavity. A connecting rod 331 is detachably disposed on the side of the movable tube 321 opposite to the mounting tube. At least a portion of the connecting rod 331 is located within the connecting cavity and connected to the return spring 40. The end of the connecting cover 322 opposite to the movable tube 321 is rotatably connected to the tensioning component 20. One end of the return spring 40 is detachably connected to the connecting rod 331, and the other end of the return spring 40 is detachably connected to the connecting cover 322.

[0048] In some embodiments, a third thread is provided on the inner peripheral wall of the connecting cavity near the connecting cover 322, and a fourth thread is provided on the outer peripheral wall of the connecting cover 322. The third thread and the fourth thread cooperate to connect the moving tube 321 to the connecting cover 322. During installation, one end of the return spring 40 is first connected to the connecting cover 322. Then, the return spring 40 is housed in the connecting cavity, and the third thread and the fourth thread are engaged. At this time, the end of the return spring 40 away from the connecting cover 322 is located outside the connecting cavity. Then, the end of the return spring 40 away from the connecting cover 322 is connected to the connecting rod 331. Finally, the connecting rod 331, the return spring 40, and the moving tube 321 are placed in the mounting cavity, and the part of the connecting rod 331 located outside the mounting cavity is connected to the mounting block 332, thereby completing the assembly.

[0049] Preferably, the return spring 40 is provided with connecting rings at both ends, the connecting rod 331 is provided with a first hook on the side facing the return spring 40, the first hook is adapted to cooperate with the connecting ring at one end of the return spring 40, and the connecting cover 322 is provided with a second hook on the side facing the return spring 40, the second hook is adapted to cooperate with the connecting ring at the other end of the return spring 40.

[0050] The resetting spring 40 is easy to disassemble and assemble, which improves the efficiency of disassembly and assembly. At the same time, the resetting spring 40 can be restricted by the connecting cavity after installation to ensure the installation stability of the resetting spring 40. In addition, the connecting cavity can also ensure the deformation shape of the resetting spring 40, thereby ensuring the performance and service life of the resetting spring 40.

[0051] According to some embodiments of this utility model, the outer diameter of the moving tube 321 is d1, and the inner diameter of the mounting cavity is d2, satisfying: 0.2mm≤d2-d1≤0.4mm.

[0052] In some embodiments, the gap between the movable tube 321 and the mounting cavity is very small. Specifically, the minimum gap between the movable tube 321 and the wall of the mounting cavity is 0.1 mm (one side) and the maximum gap is 0.2 mm (one side). This ensures that the movable tube 321 will not experience excessive lateral displacement or wobbling when subjected to external forces, thereby guaranteeing the accuracy of tension adjustment. Furthermore, it provides sufficient space for the movable tube 321 to move smoothly axially in response to changes in yarn tension, and prevents excessive friction from affecting the working efficiency of the return spring 40 or accelerating component wear.

[0053] It is worth mentioning that by setting 0.2mm≤d2-d1≤0.4mm, external dust, lint and other impurities can be effectively prevented from entering the installation cavity, protecting the return spring 40 from contamination and extending its service life.

[0054] Example 4:

[0055] Based on Embodiment 2, the mounting base includes a mounting plate 11 and two side plates 12. The mounting plate 11 is adapted to be connected to a circular loom, and the two side plates 12 are respectively disposed on both sides of the mounting plate 11 in the width direction. One end of the tension member 20 is rotatably connected to the two side plates 12, and the mounting block 332 is rotatably connected to the two side plates 12.

[0056] The mounting block 332 is provided with two connecting ears 333 on the side opposite to the connecting rod 331. The two connecting ears 333 are located on both sides of the connecting channel in the radial direction and are rotatably connected to the two side plates 12 respectively. The screw 50 passes through the side plate 12 and the corresponding connecting ear 333 in sequence and is rotatably connected to the first nut 60. The screw 50 is also connected to the second nut 70, which is located between the side plate 12 and the corresponding connecting ear 333. The connecting ear 333 is limited to the corresponding first nut 60 and second nut 70.

[0057] In some embodiments, the mounting plate 11 is the base of the entire mounting base. The mounting plate 11 is used for fixed connection with the circular loom. By firmly installing the mounting plate 11 on the circular loom, the stability of the entire tension adjustment assembly 1 is ensured. Two side plates 12 are respectively arranged on both sides of the mounting plate 11 in the width direction to increase the rigidity of the overall structure of the mounting base. One end of the tension member 20 is rotatably connected to the two side plates 12 respectively. Two connecting ears 333 are provided on the side of the mounting block 332 away from the connecting rod 331. These two connecting ears 333 are respectively located on both sides of the connecting channel in the radial direction. The screw 50 passes through the side plate 12 and the corresponding connecting ears 333 in sequence and is rotatably connected to the first nut 60. The screw 50 is used to fix the side plate 12 to the corresponding connecting lug 333, thereby ensuring the tightness of the overall structure. In addition, the screw 50 is also connected to a second nut 70, which is located between the side plate 12 and the corresponding connecting lug 333. The connecting lug 333 is limited between the first nut 60 and the second nut 70 to restrict the movement of the connecting lug 333 in the width direction (the width direction is parallel to the axis of the screw 50). At the same time, it also provides the necessary adjustment space (by adjusting the position of the first nut 60 and the second nut 70, the mounting block 332 can be finely adjusted according to actual needs) to adapt to different working requirements or compensate for gap changes caused by wear.

[0058] Therefore, the design of using screw 50 and double nuts greatly enhances the stability of the connection, reduces the risk of loosening due to vibration or other external factors, and allows users to easily adjust the position of the connecting lug 333 on site without complicated tools or a long disassembly process, greatly simplifying maintenance.

[0059] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A tension regulating assembly for a circular weaving machine, characterized in that, The installation seat is adapted to be connected with a circular weaving machine. A tension member, one end of which is rotatably connected with the installation seat, and the other end of which is adapted to contact with a yarn; An installation pipe, one end of which is rotatably connected with the installation seat, and the installation pipe is provided with an installation cavity, the installation pipe comprises a moving part, one end of the moving part is movably accommodated in the installation cavity, and the other end of the moving part is rotatably connected between one end and the other end of the tension member; A reset spring, which is accommodated in the installation cavity, one end of the reset spring is connected with the installation pipe, and the other end of the reset spring is connected with the moving part. The installation pipe comprises:

2. The tension regulating assembly for a circular weaving machine according to claim 1, characterized in that, An installation cylinder, which is provided with the installation cavity; A moving part, which is configured as the moving part, one end of the moving part is movably accommodated in the installation cavity; A connecting piece, which is movably connected to one end of the installation cylinder away from the moving part, at least part of the connecting piece extends into the installation cavity and is connected with the reset spring, one end of the connecting piece away from the reset spring is rotatably connected with the installation seat, and the connecting piece is adapted to move in the axial direction relative to the installation cylinder. The connecting piece comprises:

3. The tension regulating assembly for a circular weaving machine according to claim 2, characterized in that, A connecting rod, one end of the connecting rod is located in the installation cavity and connected with the reset spring, and the other end of the connecting rod is located outside the installation cavity; An installation block, which is detachably connected with the other end of the connecting rod, and the installation block is rotatably connected with the installation seat. The outer peripheral wall of the connecting rod is provided with a first thread, the installation block is provided with a connecting channel penetrating in the axial direction, the inner peripheral wall of the connecting channel is provided with a second thread, and the first thread cooperates with the second thread.

4. The tension regulating assembly for a circular weaving machine according to claim 3, characterized in that, The moving part comprises:

5. The tension regulating assembly for a circular weaving machine according to claim 4, characterized in that, A moving pipe, one end of the moving pipe is movably accommodated in the installation cavity, and the moving pipe is provided with a connecting cavity penetrating in the axial direction, and at least part of the reset spring is located in the connecting cavity; A connecting cover, which is detachably arranged on the side of the moving pipe away from the installation pipe, at least part of the connecting rod is located in the connecting cavity and connected with the reset spring, and one end of the connecting cover away from the moving pipe is rotatably connected with the tension member. One end of the reset spring is detachably connected with the connecting rod, and the other end of the reset spring is detachably connected with the connecting cover.

6. The tension regulating assembly for a circular weaving machine according to claim 5, characterized in that The outer diameter of the moving pipe is d1, and the inner diameter of the installation cavity is d2, and it is satisfied that 0.2mm≤d2-d1≤0.4mm.

7. The tension regulating assembly for a circular weaving machine according to claim 6, characterized in that The installation seat comprises:

8. The tension regulating assembly for a circular weaving machine according to claim 4, characterized in that, An installation plate, which is adapted to be connected with a circular weaving machine; Two side plates, which are respectively arranged on both sides of the installation plate in the width direction; wherein One end of the tension member is rotatably connected with the two side plates respectively, and the installation block is rotatably connected with the two side plates respectively. The side of the installation block away from the connecting rod is provided with two connecting ears, the two connecting ears are respectively located on both sides of the connecting channel in the radial direction and are rotatably connected with the two side plates respectively; wherein 9. The tension regulating assembly for a circular weaving machine according to claim 8, characterized in that, ​ The screw rod passes through the side plate and the corresponding connecting lug in sequence and is rotationally connected with the first nut. The screw rod is further connected with a second nut, which is located between the side plate and the corresponding connecting lug. The connecting lug is limited between the corresponding first nut and the second nut.

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