Textile machine, method and system component for operating textile machine

Abstract

The invention relates to a textile machine (1) which can be operated at a high speed and in this case has low energy consumption, and to a method for operating the textile machine (1) and to a system component (2) for the textile machine (1). The textile machine (1) according to the invention comprises a system part (2) which is sprung by means of an elastic element (4), the spring constant (CF) of the elastic element (4) being varied as a function of a control path of a control surface of the system part (2). In this way, it is possible to provide a large maximum elastic force by means of the elastic element (4) and to keep the elastic force low during a long period of operation of the textile machine (1) in order to produce as little friction loss as possible during operation and to achieve low energy consumption.

Description

Technical Field

[0001] This invention relates to a textile machine for manufacturing knitted fabrics, a method for operating the textile machine, and system components for the textile machine. Various types of textile machines are known, such as flat knitting machines, circular knitting machines, or warp knitting machines. Textile machines for manufacturing knitted fabrics are distinguished by including a loop-forming device, which enables the formation of loops. To control loop formation, and especially to produce intricately designed patterns when manufacturing knitted fabrics, textile machines are typically equipped with a control device that allows for individual operation or selection of the loop-forming device via system components. Here, the loop-forming device can be integrally molded into the system components or is a component of a single textile tool that functionally cooperates with the system components. Operation can also be achieved via multiple functionally cooperating system components. Background Technology

[0002] Typically, control is achieved by engaging or disengaging a system component with one or more drive mechanisms of the textile machine, depending on the position of the system component's control surface. Common drive mechanisms include triangular components, needle cylinders, or needle discs. To adjust the position of the control surface along a preset control stroke, a control force can be applied to the system component using a control device. Here, the system component is typically supported in a groove of the textile machine with a bearing surface, thus resisting the control force. An elastic element of the system component is arranged between the bearing surface and the control surface. This elastic element undergoes elastic compression when a control force is applied to the control surface, thereby allowing the control surface to deflect along the control stroke. The elastic force of the elastic element acts accordingly as a reaction force against the control force, causing the control surface to return to its initial position when no control force or a small control force is applied. Since the elastic force is directly dependent on the control force, it behaves in the same manner as the control force along the control stroke, but can have different values. Typically, system components are in contact with the drive mechanism of the textile machine in their initial position, and can be correspondingly moved to a position where they are not in contact with the drive mechanism by deflection of the control surface. This allows control over whether the system components are driven or not. However, the textile machine can also be designed such that its system components are not in contact with the drive mechanism in their initial position when no control force is applied, and only become in contact with the drive mechanism when a control force is applied.

[0003] Such a textile machine is known from DE102010017950A1. This machine has a selection plate, a system component via which the textile tool with a loop-forming device can be selected individually. Selection is achieved via an end section, which is pivotally fixed at an elastic section of the selection plate. When the end section is pivoted into the selected position, a driving force is transmitted to the selection plate via a propulsion surface. To control whether the end section pivots into the selected or non-selected position, a force can be applied using a magnet, which acts in opposition to the elastic force of the elastic section. Here, the magnet functions as a control device. To define the final position of the pivoting motion of the end section, the selection component has a stop. The pivoting motion is restricted by contact between the elastic section and the stop. Therefore, after contact with the stop, the end section cannot deflect further. The use of such a selection plate or similar system components with elastic elements has been repeatedly verified in textile machines. However, textile machines continue to evolve, especially with increasing operating speeds. It has been shown that textile machines (i.e., those in which the looping device is controlled via known system components with elastic elements) are unsuitable for high operating speeds because the return of the system components via the elastic elements is too slow. Increasing the return speed by making the elastic elements more rigid is undesirable, as this would also increase friction within the textile machine and thus increase energy consumption. Since textile machines typically comprise 1000 or more system components, even a small increase in elasticity at each of these components already leads to a significant increase in energy consumption and wear. Summary of the Invention

[0004] Therefore, based on the prior art, the objective of this invention is to describe a textile machine with system components that can operate at high speeds and, consequently, has low energy consumption. Furthermore, the objective of this invention is to describe a method for operating the textile machine and a system component for the textile machine.

[0005] This task is accomplished by a textile machine having the features of claim 1, a method for operating the textile machine according to the invention having the features of claim 9, and system components for the textile machine according to the invention having the features of claim 12.

[0006] A textile machine for manufacturing knitted fabrics according to the invention includes system components housed in a recess within the textile machine. The system components have elastic elements, preferably bending springs and / or leaf springs. Using a control device of the textile machine, a control force can be applied to the system components at a control surface to control the movement of the system components. Here, the control device can be implemented as a multi-piece unit. In particular, the control device can include, for each system component, an intermediate connecting selection component with at least one selection foot, but preferably with multiple comb-like selection feet arranged side-by-side. The system component has at least one bearing surface by which it is supported against the control force. Preferably, the bearing surface is part of the elastic element. A bearing surface supported in a recess within the textile machine is particularly preferred. Alternatively, the bearing surface may also be supported on another system component or textile tool. The control force can be transmitted from the control surface to the bearing surface via the elastic element, causing the elastic element to elastically compress under the action of the control force. Thus, applying the control force, according to the spring constant of the elastic element, also causes the control surface to deflect a control stroke. Advantageously, the system component has a rotating support about which it can rotate according to a control stroke. Deflection of the control surface then triggers rotational movement about the rotating support. For the purposes of this patent application, it is assumed that the elastic element can be described at least in stages using Hooke's law within a single operating state. Therefore, the spring constant C... F As controlled by F S The quotient formed by the control stroke S yields: C F =F S Surprisingly, it has been shown that if the spring constant of the elastic element varies with the control stroke, exceptionally high speeds can be achieved using a textile machine with simultaneously low energy demands. However, the spring constant is not constant throughout the control stroke. Instead, the control stroke can be divided into at least two ranges in which the spring constant of the elastic element differs. But within the corresponding ranges, the spring constant can be constant. Particularly advantageous is that the control stroke comprises at least three ranges in which the spring constant differs. The spring constant can increase from one range to another as the control stroke increases. This approximates a progressive spring characteristic with an exponentially increasing spring constant, which avoids sudden loads on the textile machine and thus enables extremely high operating speeds.

[0007] If the control surface deflects at the maximum control stroke S max At least 90%, but preferably the maximum control stroke S maxAt least 95% of the time, the spring constant of the elastic element is at its maximum, which yields another advantage. Thus, as the maximum control stroke is reached, the elastic element can provide a particularly large spring force, enabling the system components to reset as quickly as possible and thus achieving high machine speeds. Simultaneously, the spring force only increases near the end of the control stroke, resulting in a relatively small spring force acting for most of the control stroke. This low friction allows the energy demand of the textile machine to be kept low simultaneously. The maximum control stroke should be understood as the control stroke during which the control surface deflects to its maximum during the operation of the textile machine. Therefore, the maximum control stroke S... max It is usually preset by the control device of the textile machine. However, it can also be preset by the system components themselves. For example, the system components may have end stops that limit the deflection of the control surface.

[0008] In an advantageous embodiment of the textile machine according to the invention, the elastic element has a contact surface that can be brought into a contact state by the deflection of the control surface, in which the elastic element contacts the support surface of the system component. In the contact state, the control force can be transmitted between the contact surface and the support surface, and the spring constant of the elastic element is greater than the spring constant when there is no contact between the contact surface and the support surface. The control surface can also resist further deflection of the elastic force of the elastic element in the contact state. Therefore, the contact between the contact surface and the support surface does not function as an end stop, but is used to change or, more precisely, increase the spring constant of the elastic element. Here, when the control surface is not deflected, i.e., the control stroke is minimum or more precisely zero, the contact surface and the control surface do not contact each other. Preferably, the contact surface and the support surface are spaced apart from the bearing surface. On the one hand, implementing the system component with a contact surface and a support surface is a particularly simple and cost-effective feasible solution for influencing the spring constant of the elastic element. On the other hand, surprisingly, this embodiment is particularly suitable for the rapid operation of the textile machine and is very durable in this regard. To provide an elastic element with at least three ranges of control travel (in which the spring constants are different), the system components may advantageously have a first contact surface and a second contact surface, which can contact a first support surface and a second support surface by deflection of the control surface. Here, the control travel (after which the second contact surface contacts the second support surface) is advantageously different from the control travel (after which the first contact surface contacts the first support surface).

[0009] A system component of a textile machine may have at least one protrusion comprising a support surface or a contact surface. This protrusion allows the contact or support surface to be designed during construction such that contact between the contact and support surfaces is always achieved within the protrusion's range, even considering wear. The protrusion thus ensures that the contact surface is always located at the desired position and is engaged upon reaching the desired control stroke. This allows for precise and repeatable adjustment of the spring constant of the elastic element, thereby enabling extremely high operating speeds of the textile machine. Advantageously, the protrusion is molded to the handle of the elastic element or system component. A system component may have two protrusions to provide a system component capable of switching between at least three states with different spring constants in the textile machine according to the invention by loading to control the force.

[0010] If the elastic element includes a free end, and the protrusion is located at a distance from the free end of the elastic element corresponding to 10% to 90% of the total length of the elastic element, further advantages arise. Surprisingly, exceptionally high operating speeds can be achieved using such a protrusion. However, it is particularly advantageous if the protrusion is located at a distance from the free end of the elastic element corresponding to 20% to 60% of the total length of the elastic element. The free end of the elastic element is not directly fixedly connected to the system components. Instead, it is connected to the system components only via the elastic element itself and the end of the elastic element opposite to the free end.

[0011] In an advantageous embodiment of the textile machine according to the invention, the protrusion comprises a contact surface. Therefore, the protrusion is not part of the elastic element, or it is not molded to the elastic element. This allows the mass of the elastic element to remain small, while simultaneously utilizing the advantages of the protrusion. Through this advantageous combination, a much higher operating speed of the textile machine can be achieved.

[0012] If the maximum spring constant C of the elastic element Fmax The minimum spring constant C of the elastic element Fmin A return of 10% to 200%, but preferably 40% to 100%, yields further advantages. The resetting of the elastic element can thus be performed particularly quickly, enabling greater operating speeds for the textile machine.

[0013] Advantageously, the contact surface contacts the support surface at 50% to 100%, but preferably 65% ​​to 95%, of the maximum control stroke. Particularly preferably, the contact surface contacts the support surface at 75% to 90% of the maximum control stroke. This allows for a relatively small control force to be required even for small deflections of the control surface. Thus, the contact surface only contacts the support surface when the control surface deflects significantly, thereby increasing the spring constant and requiring a significantly greater increase in control force for further control strokes. This generates a large elastic force, leading to rapid reset of system components or the control surface. Furthermore, small deflections of the control surface reduce the energy demand of the textile machine due to less friction. Therefore, high operating speeds are achieved with low energy consumption.

[0014] In the method according to the invention for operating the textile machine described above, a control force is applied to the system component at a control surface using a control device. The control surface deflects due to the action of the control surface, wherein the spring constant C of the elastic element... F The control stroke S changes at least once. The control surface deflects further after the spring constant changes. Therefore, an elastic element is used to generate a spring force, which is generated in two different ranges of the control stroke with different spring constants. This achieves high operating speed with low energy consumption.

[0015] Further advantages arise if the control surface is deflected by the action of a control force, i.e., so that the contact surface of the elastic element contacts the support surface of the textile machine, i.e., so that the control force is transmitted at the contact surface. Here, the spring constant increases. During the contact between the contact surface and the support surface, the control surface deflects further, wherein further deflection is achieved by the elastic force resisting the elastic element with the increased spring constant. The increase in the spring constant caused by the contact at the contact surface results in minimal wear and little friction in the textile machine. Therefore, a textile machine operating in this manner can operate particularly quickly with simultaneously low energy demands.

[0016] Advantageously, while the first contact surface is in contact with the first support surface, the control surface is further deflected such that the second contact surface comes into contact with the second support surface, wherein the control surface is further deflected during the contact at the second contact surface. Preferably, the elastic element contacts both the first and second support surfaces simultaneously via its first and second contact surfaces. Using this method, an approximately exponentially increasing spring constant can be achieved: a small spring constant when the elastic element is not in contact with one of the support surfaces; a medium-sized intermediate spring constant when the elastic element is in contact with only the first of the support surfaces; and a large spring constant when the elastic element is in contact with the second support surface. In this method, the textile machine can operate in a particularly fast and energy-efficient manner.

[0017] A system component for a textile machine according to the invention includes a handle extending in a longitudinal direction and adapted to be movably received in a groove of the textile machine in the longitudinal direction. The system component further includes a control surface through which a control force can be applied to the system component, the control force acting in a height direction perpendicular to the longitudinal direction. The control force may, however, have a relatively small force fraction in the longitudinal direction or transverse to both the longitudinal and height directions. The control force acts on an elastic element extending in the longitudinal direction and connected to the handle. Under the action of the control force, the elastic element can be elastically compressed such that, by applying the control force, the control surface can deflect the control stroke according to the spring constant of the elastic element. Surprisingly, if the spring constant of the elastic element varies according to the control stroke, the textile machine can operate in a particularly rapid manner.

[0018] Further advantages arise when the system components include a first individual component and a second individual component, wherein preferably, the first individual component includes an elastic element, and preferably, the second individual component includes a control surface. The first and second individual components can be connected to each other by means of a connecting part, wherein the connecting part preferably allows rotation between the first and second individual components, thus the connecting part also functions as a rotational support. System components composed of multiple individual components can be manufactured with particular precision and can utilize or combine different materials. Therefore, textile machines with such system components are particularly capable of operating at exceptionally high speeds due to their high precision.

[0019] Advantageously, one end of the elastic element is a fixed end directly connected to the system component, while the other end is a free end. The elastic element can be fixedly connected to the system component in a form-fit, force-fit, or material-fit manner. Elastic elements with a free end are particularly suitable for high operating speeds because the free end is not directly fixed to the system component and thus experiences less wear when the elastic element deflects. The elastic element of such a system component behaves similarly to a bending beam or bending spring in terms of its elastic properties. Attached Figure Description

[0020] Figure 1 A schematic diagram of a textile machine (1) according to the present invention is shown.

[0021] Figure 2 Showing from Figure 1 The textile machine (1) in which the contact surface (9) of the elastic element (4) transitions into the contact state.

[0022] Figure 3 Showing from Figure 1 and Figure 2 The textile machine (1), wherein the elastic element (4) elastically compresses the maximum control stroke (S) max ).

[0023] Figure 4 Showing targets from Figures 1 to 3 A schematic force-displacement diagram of system component 2.

[0024] Figure 5 The second implementation of system component 2 is shown.

[0025] Figure 6 Showing targets from Figure 5 A schematic force-displacement diagram of system component 2.

[0026] Figure 7 The third implementation of system component 2 is shown.

[0027] Figure 8 The fourth implementation of system component 2 is shown.

[0028] Figure 9 The fifth implementation of system component 2 is shown.

[0029] Figure 10 The sixth implementation of system component 2 is shown. Detailed Implementation

[0030] Figure 1A schematic diagram showing a cross-section through a groove 10 of a textile machine 1 according to the invention is shown. The textile machine 1 includes a system component 2, which functionally cooperates with a control device 6 and a drive device 18. Here, the control device 6 includes two parts: a selection component 21 and a force element 22, wherein the force element 22 is capable of applying a control force F. S The force F is applied to the control foot 11 of the selection member 21. Here, the selection member 21 engages with the selection device 19 via the selection foot 20 and is driven by the selection device such that it moves largely synchronously with the system component 2 within the groove 10 of the textile machine 1. The control force F is applied through the contact between the selection member 21 and the control surface 3 of the system component 2. S It is transmitted to system component 2. System component 2 resists the control force F at the bearing surface 5. S Supported at the bottom of the groove 10, in this embodiment, the bearing surface is located at the free end 8 of the elastic element 4. Therefore, the control force F S According to the spring constant C of elastic element 4 F The elastic compression of the elastic element 4 and the deflection of the control surface 3 cause the control stroke S. However, here, the elastic element 4 is fixedly connected to the handle 14 of the system component 2 at its fixed end 17. Therefore, when the elastic element 4 is elastically compressed, the handle 14 rotates about the rotation support 12 of the system component 2. According to the control force F... S The size of system component 2 allows it to switch to different states. Figure 1 In the initial state 25 presented in the middle, the control force F S The spring constant C of the elastic element is very weak or zero, causing only a very small elastic compression or no elastic compression at all in the elastic element 4, thereby bringing system component 2 into contact with the drive device 18 via its drive foot 23. In this initial state 25, the spring constant C of the elastic element... F It is also the smallest, thus minimizing the spring constant C. Fmin It works. Then, during the operation of the textile machine 1, the drive unit 18 drives the system component 2 to perform alternating longitudinal movements along the groove 10. Common drive units 18 for the system component 2 are, for example, the triangle, cylinder, or needle plate of a knitting machine. When a larger control force F is applied... S When applied to system component 2, the elastic element 4 can be further elastically compressed such that system component 2 is no longer in contact with the drive device 18, as this is in Figure 2 and Figure 3 As presented in [the text]. In [the text] Figure 2 and Figure 3 In other aspects, it presents a similar view to Figure 1 The same textile machine 1. For a better overview, in Figure 2 and Figure 3 Therefore, all reference numbers are omitted.

[0031] exist Figure 2 In the middle, the system components are in intermediate state 26, in which the elastic element 4 is compared to Figure 1 The middle is further elastically compressed. However, the maximum control stroke S has not yet fully deflected at this control surface 3. max Through with Figure 1 Compared to a longer expression of control force F S The arrow indicates that for this purpose... Figure 2 In the intermediate state 26 of system component 2 shown in the image, compared to... Figure 1 In the first state 25 shown, the control force F S Larger. Thus, the elastic element 4 is in a position where the contact surface 9 of the protrusion 7 contacts the support surface 24 of the elastic element 4, as previously described in the contact state of the contact surface 9. Simply put, through this contact, the characteristics of the elastic element 4 change from those of a bending beam to those of a leaf spring. Consequently, the spring constant C of the elastic element 4... F Increase, thus maximizing the spring constant C Fmax It is effective. The control stroke S (in which the contact surface 9 comes into contact with the support surface 24) is also referred to below as the contact control stroke S. K .

[0032] exist Figure 3 In the middle, system component 2 is in final state 27, in which control surface 3 deflects the maximum control stroke S. max Here, the control force F S Compared to before Figure 1 and Figure 2 The state of system component 2 shown in the figure is much larger. In order to reach the final state 27 from the intermediate state 26, the elastic element 4 is at the maximum spring constant C. Fmax Under the action of [something], it is further elastically compressed. Therefore, the control surface 3 deflects by the maximum control stroke S. max In this case, the elastic element 4 provides a particularly large elastic force, when the control force F is no longer applied. S When applied to system component 2, the elastic force causes system component 2 to quickly return to its original position. Figure 1 In the initial state 25.

[0033] exist Figure 4 The left side shows a schematic force-displacement diagram of system component 2. Data points are marked with crosses on the diagram, indicating the initial state 25, intermediate state 26, and final state 27 of system component 2. For clarity, in... Figure 4 The right side again presents system component 2 in these three states, which are in Figures 1 to 3 This can also be seen in the diagram. The online graph shows the control force F based on the control stroke S. SHowever, the elastic force of the elastic element 4 acts as a response to the control force F. S The reaction force is similar in nature to the control force F. S The behavior is exactly the same. In the initial state 25, the control force F S Minimum. If elastic element 4 is fully relaxed in initial state 25, the control force F S It equals zero. As the control stroke S increases, the control force F... S With the minimum spring constant C Fmin The stroke increases linearly until the elastic element 4 deflects the contact control stroke S. K Subsequently, the contact surface 9 comes into contact with the support surface 24 in the intermediate state 26. In this embodiment, the contact control stroke S K Corresponding to the maximum control stroke S max 70%. Through this contact, the spring constant C of elastic element 4... F Increase, thus maximizing the spring constant C Fmax It works. As the control stroke S further increases while maintaining contact between the contact surface 9 and the support surface 24, the control force F... S It is further improved until the maximum control stroke S is reached. max Among them, due to the large maximum spring constant C Fmax The force increases more steeply. Thus, by reaching the maximum control stroke S... max Relatively large control force F S This also generates a large elastic force, when the control force F is no longer applied. S When applied to system component 2, this elastic force enables the system component to quickly return to its initial state 25. However, during the operating state between the initial state 25 and the intermediate state 26, due to the small minimum spring constant C... Fmin This generates only a small amount of friction, which makes textile machines particularly energy efficient and with low wear.

[0034] Figure 5 A second advantageous embodiment of the system component 2 for the textile machine 1 according to the invention is shown. The structure of the system component 2 is similar to... Figures 1 to 4 System component 2 is shown in the image. Therefore, the following discussion will focus only on the differences. Figure 5 The elastic element 4 of system component 2 shown in the image has a first contact surface 109 and a second contact surface 209. Therefore, compared to the one from... Figures 1 to 4 System component 2 has an additional contact surface. The first contact surface 109 and the second contact surface 209 are components of the first protrusion 107 and the second protrusion 207 of the elastic element 4, respectively. By utilizing the protrusions 107 and 207, the contact surfaces 109 and 209 are constructed in a targeted manner, thereby predicting the behavior of the elastic element 4. Through the additional contact surface, the spring constant C of the elastic element 4 is...F The stroke S can be increased twice according to the control stroke. Therefore, during the operation of the textile machine 1 according to the present invention, the first contact surface 109 can contact the first support surface of the textile machine 1 (in... Figure 5 (Not shown in the middle) contact, where the system component is in the first intermediate state 126. The system component 2 then contacts other components of the textile machine at the bearing surface 5 and the first contact surface 109. Here, the spring constant C F The first increase leads to an increase in the intermediate spring constant C. FI It works because the intermediate spring constant is greater than the minimum spring constant C. Fmin The first support surface can be, for example, the bottom of the groove 10 of the textile machine 1. However, in another embodiment, the first contact surface 109 can also be arranged such that it can contact the first support surface, which is part of the handle 14 of the system component 2. After contact is established at the first contact surface 109, as the control stroke S increases, the second contact surface 209 can also contact the second support surface 224, placing the system component 2 in a second intermediate state 226. Here, the characteristics of the elastic element 4 change, behaving like a leaf spring in this second intermediate state 226. Consequently, the spring constant increases a second time, resulting in a maximum spring constant C. Fmax It works; the maximum spring constant is greater than the intermediate spring constant C. FI .

[0035] exist Figure 6 The left side presents information targeting those from... Figure 5 The force-displacement graph of system component 2 is shown. Data points are marked with crosses on the graph, indicating that system component 2 is in the initial state 25, the first intermediate state 126, the second intermediate state 226, and the final state 27. For clarity, in... Figure 6 The right side also shows system component 2 in these four states. In the initial state 25, the control force F S Minimum. When the elastic element 4 starts from the initial state 25 and is elastically compressed until the first contact control stroke S is reached. K1 (When the first contact surface 109 contacts the first support surface during the first contact control stroke) the minimum spring constant C Fmin This is effective, resulting in a slow increase in force. As the first contact control stroke S is reached... K1 (In this embodiment, it is the maximum control stroke S) max When the spring constant C of the elastic element 4 reaches 70% (70%), system component 2 transitions to the first intermediate state 126, and the spring constant C of the elastic element 4... F The first increase causes further deflection in this state until the second contact control stroke S is reached. K2 When the intermediate spring constant C is large FI It works. Second contact control stroke S K2Corresponding to the control stroke S, in which the second contact surface 209 contacts the second support surface 224, and in this embodiment, this is the maximum control stroke S. max 85%. Here, the spring constant C of elastic element 4... F The second increase places system component 2 in the second intermediate state 226. In this state, the maximum spring constant C... Fmax This is effective, thereby applying the control force F when the elastic element 4 is further elastically compressed until the final state 27 of system component 2 is reached. S The elastic element 4 is so violently pre-tightened that the system component 2 can be reset to its initial state 25 very quickly, and thus the textile machine 1 can operate at extremely high speeds.

[0036] Figure 7 A third embodiment of system component 2 is shown, which is equally applicable to use in a textile machine according to the invention. System component 2 largely corresponds to... Figures 1 to 3 The system component 2 is different in that the protrusion 7 is not molded to the handle 14 of the system component 2, but is molded to the elastic element 4.

[0037] Figure 8 A fourth embodiment of the system component 2 for a textile machine 1 according to the invention is shown. The difference between the system component 2 and the third embodiment is essentially that the control surface 3 is spaced apart from the elastic element 4 in the longitudinal direction L. In this embodiment, the system component 2 is particularly suitable for use in a textile machine 1 having a control device 6 with a magnetic force element 22. The magnetic force element 22 is, for example, an electromagnet.

[0038] Figure 9 A fifth embodiment of a system component 2 for a textile machine 1 according to the invention is shown. The system component 2 is assembled from a first single component 15 and a second single component 16. Here, the first single component 15 includes an elastic element 4, and the second single component 16 includes a control surface 3. The free end 8 of the elastic element 4 abuts against the system component 2, such that a control force F applied at the control surface 3... S The elastic element 4 can transmit power to the bearing surface 5 of the first individual component 15. The first individual component 15 and the second individual component 16 are connected to each other by a connecting portion 13, wherein the first individual component 15 and the second individual component 16 are rotatable relative to each other about the connecting portion 13, that is, the connecting portion 13 also functions as a rotational support portion 12. When the elastic element 4 moves from... Figure 9 When the initial state 25 is elastically compressed sufficiently far, the contact surface 9 at the protrusion 7 of the second system component 16 can contact the support surface 24 of the elastic element 4, thereby increasing the spring constant C of the elastic element 4. FIncrease.

[0039] Figure 10 The document presents a sixth embodiment of a system component 2 for a textile machine 1 according to the invention. The structure of this system component 2 is similar to that of... Figure 7 The structure is as follows. However, a significant difference is that the control surface 3 is formed using the foot at the handle 14 of the system component 2, such that the control surface 3 protrudes in the height direction H relative to the handle 14. In this embodiment, the system component 2 is particularly suitable for use in the textile machine 1 according to the invention without the selection component 21 and the selection device 19.

[0040] Reference number list 1. Textile machine 2 System Components 3 Control Surface 4. Elastic element 5. Bearing surface 6. Control device 7. Protrusion 8. Free end of elastic element (4) 9. Contact surface 10 Grooves 11. Control your feet 12 Rotating support section 13 Connecting parts 14. Handle 15 First Single Component 16 Second single component 17 Fixed end 18. Drive unit 19 Selection device 20. Control your feet 21 Select Components 22 Force Elements 23 Drive the feet 24 Support surface 25 Initial State 26. Intermediate State 27 Final State 107 First protrusion 109 First contact surface 126 First intermediate state 207 Second protrusion 209 Second contact surface 224 Second support surface 226 Second intermediate state C F Spring constant C FI Intermediate spring constant C Fmin Minimum spring constant C Fmax Maximum spring constant F S Control H (height direction) L (vertical direction) S controls the stroke S K Contact control stroke S K1 First contact control stroke S K2 Second contact control stroke S max Maximum control stroke

Claims

1. A textile machine (1) for manufacturing knitted fabrics, comprising: System component (2), which is housed in a groove (10) of the textile machine (1) and has an elastic element (4); The control device (6) enables the application of control force (F) at the control surface (3) of the system component (1). S ) is applied to the system component (2); The system component (2) has a bearing surface (5), which the system component uses to resist the control force (F). S )support; Among them, the control force (F) S It can be transmitted from the control surface (3) to the bearing surface (5) via the elastic element (4); Among them, by applying the control force (F) S The control surface (3) can be adjusted according to the spring constant (C) of the elastic element (4). F Deflection control stroke (S); Its features are, The spring constant (C) of the elastic element (4) F It varies according to the control stroke (S).

2. The textile machine (1) according to claim 1 above, Its features are, When the control surface (3) deflects to the maximum control stroke (S) max At least 90%, but preferably the maximum control stroke (S) max When the elastic element (4) is at least 95% of the value, the spring constant (C) of the elastic element (4) is... F )maximum.

3. The textile machine (1) according to any one of claims 1 to 2, Its features are, The elastic element (4) has a contact surface (9), which can be brought into a contact state by the deflection of the control surface (3), in which the contact surface (9) contacts the support surface (24) of the system component (2). In the contact state, the control force (F) S The elastic element (4) can transmit power between the contact surface (9) and the support surface (24), and the spring constant (C) of the elastic element (4) is... F The constant is greater than the spring constant when there is no contact between the contact surface (9) and the support surface (24); Furthermore, the control surface (3) can be further deflected in the contact state.

4. The textile machine (1) according to claim 3 above, Its features are, The system component (2) has at least one protrusion (7), which includes the support surface (24) or the contact surface (9).

5. The textile machine (1) according to claim 4 above, Its features are, The protrusion (7) is molded onto the elastic element (4).

6. The textile machine (1) according to any one of claims 4 to 5, Its features are, The elastic element (4) includes a free end (8), Furthermore, the protrusion (7) is located at a distance from the free end (8) of the elastic element (4) by a distance corresponding to 10% to 90% of the total length of the elastic element (4).

7. The textile machine (1) according to any one of the preceding claims, Its features are, The maximum spring constant (C) of the elastic element (4) Fmax The minimum spring constant (C) of the elastic element (4) is greater than that of the elastic element (4). Fmin ) 10% to 200%, but preferably 40% to 100%.

8. The textile machine (1) according to any one of claims 3 to 7, Its features are, At maximum control stroke (S max The contact surface (9) contacts the support surface (24) in 50% to 100% of cases, but preferably in 65% to 95% of cases.

9. A method for operating a textile machine (1) according to any one of claims 1 to 8, in, Using the control device (6), the control force (F) is applied at the control surface (3) of the system component (2). S ) is applied to the system component (2); The control surface (3) is controlled by the control force (F). S It deflects due to the effect of ); Its features are, The spring constant (C) of the elastic element (4) F The control stroke (S) changes at least once.

10. The method for operating a textile machine (1) according to claim 9, Its features are, The control surface (3) is controlled by the control force (F). S The action of the elastic element (4) is deflected such that the contact surface (9) of the elastic element (4) comes into contact with the support surface (24) of the textile machine (1) in such a way that the control force (F) is transmitted at the contact surface (9). S ), wherein the spring constant (C) F The control surface (3) increases, and during the contact between the contact surface (9) and the support surface (24), the control surface (3) deflects further.

11. The method according to claim 10, Its features are, While the first contact surface (9, 109) is in contact with the first support surface (24, 124), the control surface (3) is further deflected such that the second contact surface (209) comes into contact with the second support surface (224), wherein the control surface (3) is further deflected during contact at the second contact surface (209).

12. A system component (2) for a textile machine (1) according to any one of claims 1 to 8, comprising: - Handle (14) which extends in the longitudinal direction (L) and is adapted to be movably received in a groove of the textile machine (1) in the longitudinal direction (L); - Control surface (3), through which a control force (F) acting in the height direction (H) perpendicular to the longitudinal direction (L) can be applied. S ) is applied to the system component (2); - An elastic element (4) that extends in the longitudinal direction (L) and is connected to the handle (2); - Wherein, by applying the control force (F) S The control surface (3) can be adjusted according to the spring constant (C) of the elastic element (4). F Deflection control stroke (S); Its features are, The spring constant (C) of the elastic element (4) F It varies according to the control stroke (S).

13. The system component (2) according to claim 12, Its features are, The system component (2) has a contact surface (9), and the elastic element (4) can contact the contact surface by deflection of the control surface (3); The control force (F) S It can be transmitted at the contact surface (9); Furthermore, when the elastic element (4) comes into contact with the contact surface (9), the control surface (3) can be further deflected.

14. The system component (2) according to any one of claims 12 to 13, Its features are, The system component (2) includes a first single component (15) and a second single component (16), wherein preferably, the first single component (15) includes the elastic element (4), and wherein preferably, the second single component (16) includes the control surface (3).

15. The system component (2) according to any one of claims 12 to 14, Its features are, One end of the elastic element (4) is a fixed end (17) that is directly connected to the system component (2), and the other end of the elastic element (4) is a free end (8).

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