Guide mechanism of fabric shaping equipment

Abstract

The utility model belongs to the technical field of textile equipment, and particularly relates to a guide mechanism of fabric shaping equipment, which comprises a shell, a guide rod, a guide rod and a guide rod, the heating chamber is arranged in the shell and comprises a front heating chamber and a rear heating chamber; the cooling chamber is arranged in the shell and is used for shaping the fabric; the guide device is arranged in the shell and comprises a guide mechanism and a tension adjusting mechanism; wherein the guiding mechanism is used for guiding the fabric, and the adjusting mechanism is used for adjusting the tension of the fabric under the condition that the fabric is not deformed. The tension adjusting device has the beneficial effects that through the synergistic effect of the guiding mechanism and the tension adjusting mechanism, dynamic tension adjustment is achieved in the fabric conveying process, the problems of fabric longitudinal stretching and transverse shrinkage caused by uneven tension distribution of a traditional device are solved, and shape deformation of fabric coils is effectively avoided.

Description

Technical Field

[0001] This application belongs to the field of textile equipment technology, and in particular relates to a guiding mechanism for a fabric setting device. Background Technology

[0002] Heat setting eliminates the internal stress generated in the fibers during stretching, causing a certain degree of relaxation in the macromolecules, improving the shape stability of the fibers, and enhancing their physical and mechanical properties, such as crystallinity, elasticity, knot strength, and abrasion resistance. It also helps to fix crimp or twist. Furthermore, it removes moisture introduced during the stretching and oiling process, ensuring the fibers meet the required moisture content for the finished product. This also prevents the fibers from yellowing due to incomplete drying of the oil during long-term storage.

[0003] Existing heat setting devices consist of a hollow housing containing conveyor rollers for transporting the fabric and heating elements for raising the internal temperature of the housing. During transport, a guiding structure formed by the conveyor rollers maintains the fabric's movement and keeps it in contact with the surfaces of one or more heated rollers. Finally, the fabric passes through a cooling chamber to set its shape before entering the winding rollers. However, the guiding structure for transporting the fabric in existing heat setting devices only serves a guiding function. Even with a tension adjustment device, uneven force application can cause the fabric to stretch in the warp direction but contract in the transverse direction when under tension, resulting in deformation of the fabric loops. Improvements are needed to address this issue. Utility Model Content

[0004] The purpose of this application is to provide a guiding mechanism for a fabric setting device that can solve the above-mentioned problems.

[0005] The purpose of this application is to provide a guiding mechanism for a fabric setting device, comprising:

[0006] The shell has an outlet and an inlet at both ends for the fabric to enter and exit;

[0007] The heating chamber is located inside the housing and includes a front heating chamber and a rear heating chamber;

[0008] A cooling chamber, located inside the housing, is used to set the shape of the fabric;

[0009] It also includes a guiding device, which is disposed within the housing and includes a guiding mechanism and a tension adjustment mechanism;

[0010] The guiding mechanism is used to guide the fabric, and the adjusting mechanism is used to adjust the tension of the fabric while ensuring that the fabric does not deform.

[0011] The aforementioned fabric setting equipment employs a guiding mechanism installed within a housing to guide the fabric for setting. The housing comprises a heating chamber, a cooling chamber, and a buffer zone between them. The buffer zone has a certain length and serves as a transition area. Two heating cylinders are installed vertically at intervals in the front heating chamber, while the rear heating chamber is the tenter frame heating chamber. Heating and tension applied to both sides stretch the fabric flat and evenly, widening the weft direction and ensuring uniformity, thus reducing fabric deformation. Cooling is achieved within the cooling chamber by a fan.

[0012] This application achieves dynamic tension adjustment during fabric conveying by synergistically installing a guiding mechanism and a tension adjustment mechanism. This solves the problems of longitudinal stretching and transverse shrinkage of fabric caused by uneven tension distribution in traditional devices, effectively preventing deformation of fabric loops. While maintaining the stability of the fabric's movement path, the guiding mechanism, in conjunction with the tension adjustment mechanism, applies a uniform force to the fabric, ensuring tension balance in the warp and weft directions, thereby reducing the risk of deformation caused by localized stress differences during the heat setting process.

[0013] Furthermore, the guiding mechanism includes:

[0014] The first guide roller is located on the outside of the inlet;

[0015] The second guide roller is located inside the front heating chamber;

[0016] The third guide roller is provided between the front heating chamber and the rear heating chamber, as well as on the outside of the outlet;

[0017] The fourth guide roller is located on the outside of the outlet;

[0018] The fabric is wound up after passing through the first guide roller, the second guide roller, the third guide roller and the fourth guide roller in sequence.

[0019] The first guide roller initially positions the fabric outside the inlet, establishing a path for the fabric to enter the housing. Combined with the guidance of the fourth guide roller, this forms the entire fabric winding process, effectively suppressing conveyor deviation. The second guide roller, located inside the front heating chamber, ensures the fabric forms a stable wrapping angle before entering the heating zone, guaranteeing full contact between the heating surface and the fabric and improving heat transfer efficiency. The third guide roller, installed in the transition zone between the front and rear heating chambers and outside the outlet, enables segmented control of the fabric path. It serves both as a turning point in the heating zone and as a horizontal guide for the fabric to the outlet.

[0020] This application utilizes a progressive guiding path formed by four rollers to maintain the fabric in a planar unfolded state during the heating-stretching-cooling process. Simultaneously, in conjunction with a tension adjustment mechanism, dynamic balance of warp and weft stresses can be achieved, effectively reducing the risk of coil structure deformation during the heat setting process.

[0021] Furthermore: the second guide roller is provided in multiple manner and is capable of distributing the fabric in an S-shape within the front heating chamber.

[0022] In this application, the fabric first loops upwards around the upper heating cylinder of the front heating chamber, and then loops downwards around the lower heating cylinder of the front heating chamber, thus forming an S-shaped distribution. By alternately looping upwards and downwards around the two heating cylinders inside the front heating chamber, the S-shaped winding method causes the fabric to form multiple reverse bends in the vertical direction, creating an extended path within a limited space. This significantly increases the contact time and contact area between the fabric and the heating surface, thereby improving heat transfer efficiency.

[0023] Furthermore, there are two third guide rollers located on the same horizontal line.

[0024] By configuring two rollers on the same horizontal line, a horizontal guiding structure is established as the fabric transitions from the front heating chamber to the rear heating chamber and finally from the outlet, making the fabric guidance smoother.

[0025] Furthermore, the tension adjustment mechanism includes:

[0026] Guide rails are installed in the heating chamber, and there are two of them;

[0027] The adjusting component is slidably mounted on the guide rail and includes a slider connected to the guide rail, a rod connected to the slider, and a spindle-shaped outer shell located outside the rod.

[0028] The driver, mounted on the housing and connected to the adjusting component, is used to drive the adjusting component to move on the guide rail;

[0029] The guide rail is also equipped with a buffer assembly connected to the driver to keep the movement of the adjusting component smooth.

[0030] The guide rail is vertically mounted inside the housing and secured with screws or other fasteners. The slider is slidably mounted on the guide rail. The driver consists of a servo motor mounted on the top of the housing and a screw on the servo motor's output shaft. The screw is threadedly connected to the slider, and its rotation drives the slider to move up and down. Simultaneously, a rod is mounted between the two sliders, and a shuttle-shaped housing is mounted outside the rod. The shuttle-shaped housing has a structure that is wide and thick in the middle and gradually tapers towards the sides, creating a gradual curvature transition with the fabric contact surface. This allows for some correction of fabric under tension in the warp direction and applies tension in the transverse direction to the yarns, restoring the fabric to its original state.

[0031] Meanwhile, the actuator and the buffer assembly form a closed-loop control system. The buffer assembly absorbs the sudden energy of tension changes, thereby converting the displacement of the actuator into a continuous and smooth adjustment action, further suppressing the fluctuation amplitude of fabric tension.

[0032] Furthermore, the buffer component includes:

[0033] The damper, whose output shaft is connected to the slider;

[0034] The elastic element has one end fixed to the bottom of the guide rail and the other end connected to the slider;

[0035] The damper and elastic element are installed on both guide rails.

[0036] The synchronized configuration of the damper and the elastic element forms a two-stage energy absorption system. The damper suppresses the impact load generated by the high-speed movement of the regulating element through the fluid damping effect, while the elastic element compensates for the hysteresis effect of tension regulation through deformation energy storage, thereby achieving linear control of tension changes. Simultaneously, symmetrically arranging the buffer components in the two guide rails makes the adjustment more stable, maintains overall symmetry, and avoids fabric deformation caused by sudden tension changes on one side.

[0037] Meanwhile, the buffer component of this application has bidirectional buffering characteristics, that is, it can automatically compensate for the displacement deviation caused by the thermal expansion and contraction of the fabric whether it is compressed or stretched, and can maintain the dynamic stability of tension adjustment when the heat setting temperature changes, thereby reducing the distortion of the coil structure caused by thermal stress.

[0038] Furthermore, the guide rail consists of two spaced-apart guide rods, each with a groove inside, and the damper and elastic element are installed in the groove.

[0039] Each guide rail consists of two spaced guide rods, each with a groove. Positioning blocks that slide in the grooves are fixedly connected to both sides of the slider. One end of the damper is installed at the bottom of the groove, and its extension end is connected to the positioning block. The elastic element is a spring, which is installed inside the groove and sleeved outside the damper. One end of the spring is connected to the bottom of the groove, and the other end is also connected to the positioning block.

[0040] Meanwhile, the built-in groove design can encapsulate the damper and elastic element inside the guide rod, forming a closed buffer system. This effectively blocks the thermal radiation effect of the high-temperature environment on the buffer element, preventing the damping medium from degrading and the elastic element from creeping failure.

[0041] The beneficial effects of this application are:

[0042] 1. By installing the guiding mechanism and the tension adjustment mechanism in synergy, dynamic tension adjustment is achieved during the fabric conveying process, which solves the problem of longitudinal stretching and transverse shrinkage of the fabric caused by uneven tension distribution in traditional devices, and effectively avoids the shape deformation of the fabric loops.

[0043] 2. While maintaining the stability of the fabric's movement path, the guiding mechanism, in conjunction with the tension adjustment mechanism, applies a uniform force to the fabric, ensuring the balance of warp and weft tensions, thereby reducing the risk of deformation caused by local stress differences during the heat setting process; 3. The synchronous configuration of the damper and the elastic element forms a two-stage energy absorption system. The damper suppresses the impact load generated by the high-speed movement of the adjustment element through the fluid damping effect, while the elastic element compensates for the hysteresis effect of tension adjustment through deformation energy storage, thereby enabling linear control of tension changes. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of this utility model;

[0045] Figure 2 This is a schematic diagram of the tension adjustment structure of this utility model;

[0046] Figure 3 This is a schematic diagram of the connection of the buffer assembly of this utility model. The reference numerals in the figure are as follows: 100, shell; 110, outlet; 120, inlet; 200, front heating chamber; 210, rear heating chamber; 300, cooling chamber; 400, guiding mechanism; 410, first guide roller; 420, second guide roller; 430, third guide roller; 440, fourth guide roller; 500, tension adjusting mechanism; 510, guide rail; 511, guide rod; 512, groove; 520, adjusting element; 521, slider; 522, rod; 523, shuttle-shaped shell; 524, positioning block; 530, driver; 540, buffer assembly; 541, damper; 542, elastic element. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0048] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0049] The guiding mechanism of the fabric shaping equipment provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0050] Example 1:

[0051] like Figure 1 As shown, this application embodiment provides a guide mechanism 400 for a fabric shaping device, including:

[0052] The housing 100 has an outlet 110 and an inlet 120 at both ends for the fabric to enter and exit.

[0053] The heating chamber is disposed within the housing 100 and includes a front heating chamber 200 and a rear heating chamber 210.

[0054] Cooling chamber 300, located inside housing 100, is used to set the shape of fabric;

[0055] It also includes a guiding device, disposed within the housing 100, comprising a guiding mechanism 400 and a tension adjusting mechanism 500;

[0056] The guiding mechanism 400 is used to guide the fabric, and the adjusting mechanism is used to adjust the tension of the fabric while ensuring that the fabric does not deform.

[0057] In some embodiments of this application, such as Figure 1 As shown, the above-mentioned fabric setting equipment employs a guiding mechanism 400, which is installed inside the housing 100 and used to guide the fabric for setting. The housing 100 consists of a heating chamber, a cooling chamber 300, and a buffer zone between them. The buffer zone has a certain length and serves as a transition. The front heating chamber 200 has two heating cylinders installed vertically at intervals, while the rear heating chamber 210 is the tenter frame heating chamber. Through heating and tension applied to both sides, the fabric is stretched and flattened, widening the weft direction and making it uniform, thus reducing fabric deformation. The cooling chamber 300 is cooled by a fan.

[0058] This application achieves dynamic tension adjustment during fabric conveying through the synergistic action of the guiding mechanism 400 and the tension adjusting mechanism 500. This solves the problems of longitudinal stretching and lateral shrinkage of the fabric caused by uneven tension distribution in traditional devices, effectively preventing deformation of the fabric loops. While maintaining the stability of the fabric's movement path, the guiding mechanism 400, in conjunction with the tension adjusting mechanism 500, applies a uniform force to the fabric, ensuring tension balance in the warp and weft directions, thereby reducing the risk of deformation caused by localized stress differences during the heat setting process.

[0059] Example 2:

[0060] This application provides a guiding mechanism for a fabric setting device. In addition to the above-mentioned technical features, the guiding mechanism of the fabric setting device in this application also includes the following technical features.

[0061] like Figure 1 As shown, the guiding mechanism 400 includes:

[0062] The first guide roller 410 is located on the outside of the inlet 120;

[0063] The second guide roller 420 is disposed inside the front heating chamber 200;

[0064] The third guide roller 430 is provided between the front heating chamber 200 and the rear heating chamber 210 and on the outside of the outlet 110;

[0065] The fourth guide roller 440 is located on the outside of the outlet 110;

[0066] The fabric is wound up after passing through the first guide roller 410, the second guide roller 420, the third guide roller 430 and the fourth guide roller 440 in sequence.

[0067] In this embodiment, the first guide roller 410 performs initial positioning outside the inlet 120, establishing the path for the fabric to enter the housing 100. Combined with the guidance of the fourth guide roller 440, this forms the entire fabric winding process, effectively suppressing conveyor deviation. The second guide roller 420 is located inside the front heating chamber 200, ensuring the fabric forms a stable wrapping angle before entering the heating area, guaranteeing full contact between the heating surface and the fabric, and improving heat transfer efficiency. The third guide roller 430 is installed in the transition area between the front heating chamber 200 and the rear heating chamber 210, and outside the outlet 110, enabling segmented control of the fabric path. It serves both as a turning point in the heating zone and as a horizontal guide for the fabric to the outlet 110.

[0068] This application utilizes a progressive guiding path formed by four rollers to maintain the fabric in a planar unfolded state during the heating-stretching-cooling process. Simultaneously, the tension adjustment mechanism 500 enables dynamic balance of warp and weft stresses, effectively reducing the risk of coil structure deformation during the heat setting process.

[0069] Furthermore, the second guide roller 420 is provided with multiple rollers and is capable of distributing the fabric in an S-shape within the front heating chamber 200.

[0070] In this application, the fabric first loops upwards around the heating cylinder at the top of the front heating chamber 200, and then loops downwards around the heating cylinder at the bottom of the front heating chamber 200, thus forming an S-shaped distribution. By alternately looping upwards and downwards around the two heating cylinders inside the front heating chamber 200, the S-shaped winding method causes the fabric to form multiple reverse bends in the vertical direction, creating an extended path within a limited space. This significantly increases the contact time and contact area between the fabric and the heating surface, thereby improving heat transfer efficiency.

[0071] Furthermore, there are two third guide rollers 430 located on the same horizontal line.

[0072] By configuring two rollers on the same horizontal line, a horizontal guiding structure is established as the fabric transitions from the front heating chamber 200 to the rear heating chamber 210 and finally from the outlet 110, making the fabric guidance smoother.

[0073] Example 3:

[0074] This application provides a guiding mechanism for a fabric setting device. In addition to the above-mentioned technical features, the guiding mechanism of the fabric setting device in this application also includes the following technical features.

[0075] like Figure 2 and Figure 3 As shown, the tension adjustment mechanism 500 includes:

[0076] Guide rail 510, located in the heating chamber, and two of them are provided;

[0077] Adjustment component 520 is slidably disposed on guide rail 510, including slider 521 connected to guide rail 510, rod 522 connected to slider 521, and spindle-shaped outer shell 523 located outside rod 522;

[0078] A driver 530 is disposed on the housing 100 and connected to the adjusting member 520, for driving the adjusting member 520 to move on the guide rail 510;

[0079] The guide rail 510 is also equipped with a buffer assembly 540 connected to the driver 530 to keep the movement of the adjusting member 520 smooth.

[0080] In this embodiment, the guide rail 510 is vertically installed inside the housing 100 and fixed by fasteners such as screws. The slider 521 is slidably installed on the guide rail 510. The driver 530 consists of a servo motor mounted on the top of the housing 100 and a screw on the output shaft of the servo motor. The screw is threadedly connected to the slider 521, and the rotation of the screw drives the slider 521 to move up and down. Simultaneously, a rod 522 is installed between the two sliders 521, and a shuttle-shaped housing 100 is installed outside the rod 522. The shuttle-shaped housing 100 has a structure that is wide and thick in the middle and gradually narrows towards both sides, forming a gradual curvature transition with the fabric contact surface. This allows for a certain degree of correction of the fabric under tension in the warp direction and applies tension in the transverse direction to the yarn, restoring the fabric to its original state.

[0081] Meanwhile, the actuator 530 and the buffer assembly 540 form a closed-loop control system. The buffer assembly 540 absorbs the sudden energy of tension, thereby converting the displacement of the actuator 530 into a continuous and smooth adjustment action, further suppressing the fluctuation amplitude of fabric tension.

[0082] Example 4:

[0083] This application provides a guiding mechanism for a fabric setting device. In addition to the above-mentioned technical features, the guiding mechanism of the fabric setting device in this application also includes the following technical features.

[0084] like Figure 3 As shown, the buffer component 540 includes:

[0085] The damper 541 has its output shaft connected to the slider 521;

[0086] The elastic element 542 has one end fixed to the bottom of the guide rail 510 and the other end connected to the slider 521.

[0087] The damper 541 and the elastic element 542 are both provided on the two guide rails 510.

[0088] In this embodiment, the synchronous configuration of the damper 541 and the elastic element 542 forms a two-stage energy absorption system. The damper 541 suppresses the impact load generated by the high-speed movement of the adjusting element 520 through fluid damping effect, while the elastic element 542 compensates for the hysteresis effect of tension adjustment through deformation energy storage, thereby achieving linear control of tension changes. Simultaneously, symmetrically arranging the buffer assembly 540 in the two guide rails 510 makes the adjustment more stable, maintains overall symmetry, and avoids fabric deformation caused by sudden tension changes on one side.

[0089] Meanwhile, the buffer component 540 of this application has bidirectional buffering characteristics, that is, it can automatically compensate for the displacement deviation caused by thermal expansion and contraction of the fabric whether it is compressed or stretched, and can maintain the dynamic stability of tension adjustment when the heat setting temperature changes, thereby reducing the distortion of the coil structure caused by thermal stress.

[0090] Furthermore, the guide rail 510 consists of two spaced guide rods 511, with grooves 512 inside the guide rods 511, and dampers 541 and elastic elements 542 are installed in the grooves 512.

[0091] Each guide rail 510 consists of two spaced guide rods 511. Each guide rod 511 has a groove 512. The slider 521 has positioning blocks 524 that are slidably connected to the grooves 512 on both sides. One end of the damper 541 is installed at the bottom of the groove 512, and its telescopic end is connected to the positioning block 524. The elastic element 542 is a spring. The spring is installed in the groove 512 and sleeved on the outside of the damper 541. One end of the spring is connected to the bottom of the groove 512, and the other end is also connected to the positioning block 524.

[0092] Meanwhile, the built-in design of the groove 512 can encapsulate the damper 541 and the elastic element 542 inside the guide rod 511 to form a closed buffer system, thereby effectively blocking the thermal radiation effect of the high temperature environment on the buffer element, preventing the damping medium performance degradation and the creep failure of the elastic element 542.

[0093] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples. The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A guiding mechanism for a fabric setting device, comprising: The housing (100) has an outlet (110) and an inlet (120) at both ends for the fabric to enter and exit; The heating chamber is disposed within the housing (100) and includes a front heating chamber (200) and a rear heating chamber (210); A cooling chamber (300), located inside the housing (100), is used to set the fabric. The feature is that it further includes a guiding device disposed within the housing (100), including a guiding mechanism (400) and a tension adjusting mechanism (500); The guiding mechanism (400) is used to guide the fabric, and the adjusting mechanism is used to adjust the tension of the fabric while ensuring that the fabric does not deform.

2. The guiding mechanism of a fabric setting device according to claim 1, characterized in that: The guiding mechanism (400) includes: The first guide roller (410) is located on the outside of the inlet (120); The second guide roller (420) is located inside the front heating chamber (200); The third guide roller (430) is provided between the front heating chamber (200) and the rear heating chamber (210) and on the outside of the outlet (110); The fourth guide roller (440) is located on the outside of the outlet (110); The fabric is wound up after passing through the first guide roller (410), the second guide roller (420), the third guide roller (430) and the fourth guide roller (440) in sequence.

3. The guiding mechanism of a fabric setting device according to claim 2, characterized in that: The second guide roller (420) is provided in multiple ways and is able to distribute the fabric in an S-shape within the front heating chamber (200).

4. The guiding mechanism of a fabric setting device according to claim 3, characterized in that: The third guide roller (430) is provided in two parts and is located on the same horizontal line.

5. The guiding mechanism of a fabric setting device according to claim 4, characterized in that: The tension adjustment mechanism (500) includes: Guide rails (510) are provided in the heating chamber and there are two of them; The adjusting component (520) is slidably disposed on the guide rail (510) and includes a slider (521) connected to the guide rail (510), a rod (522) connected to the slider (521), and a shuttle-shaped outer shell (523) located outside the rod (522). A driver (530), disposed on the housing (100) and connected to the adjusting member (520), is used to drive the adjusting member (520) to move on the guide rail (510); The guide rail (510) is also provided with a buffer assembly (540) connected to the driver (530) to keep the movement of the adjusting member (520) smooth.

6. The guiding mechanism of a fabric setting device according to claim 5, characterized in that: The buffer component (540) includes: The damper (541) has its output shaft connected to the slider (521); The elastic element (542) has one end fixed to the bottom of the guide rail (510) and the other end connected to the slider (521); The damper (541) and the elastic element (542) are both provided on the two guide rails (510).

7. The guiding mechanism of a fabric setting device according to claim 6, characterized in that: The guide rail (510) consists of two spaced guide rods (511), and a groove (512) is provided in the guide rod (511). The damper (541) and the elastic element (542) are both installed in the groove (512).

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