Knitting conveying device and tension regulator thereof

Abstract

The utility model relates to the technical field of knitting equipment, in particular to a knitting conveying device and a tension adjuster thereof, which comprise a tension adjusting inner shell, an adjusting disc axially arranged in the tension adjusting inner shell in a sliding manner, and an adjusting knob for driving the adjusting disc to axially move, the tension adjusting device is characterized in that a tension spring fixing ring is integrally formed or fixedly connected to the interior of an outer ring body at the outer end of the adjusting disc, a tension spring inner ring is arranged at the inner end of the tension piece, and the tension spring fixing ring and the tension spring inner ring are connected in a tensioning mode through a plurality of tension springs which are evenly distributed in the circumferential direction. According to the scheme, it can be guaranteed that the conical tension piece does not make contact with the circumferential face of the yarn conveying wheel or is released from the circumferential face of the yarn conveying wheel, but no obvious pressure is generated, in the processing process of special fabric needing approximate zero-tension conveying, yarn conveying tension fluctuation or increase cannot be caused, and the cloth cover quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of knitting equipment, in particular to a knitting conveying device and a tension regulator thereof. Background Art

[0002] The yarn feeding device is one of the main components of a knitting machine. The existing knitting yarn feeding device generally includes a machine base, an upper cover and a yarn feeding wheel installed on the machine base. A tension regulating device is installed at the end of the upper cover, and a tension piece is installed on the tension regulating device. The tension piece is arranged at the upper end of the tension regulating device. Under the pressure of an adjusting spring in the tension regulating device, the tension piece elastically contacts the circumferential surface of the yarn feeding wheel. The yarn stored on the yarn feeding wheel is output after passing through the contact surface between the tension piece and the yarn feeding wheel. By adjusting the adjusting spring in the tension regulating device, the adjusting spring is arranged at the rear end of the tension piece, and different tensions of yarn can be output by adjusting the expansion and contraction of the adjusting spring to meet the requirements of the fabric.

[0003] For the prior art, reference can be made to the Chinese invention patent announcement text with the publication number of "CN109436949B", which records a tension regulating device and a knitting conveying device. The tension regulating device includes a fixed outer shell and a tension piece tension regulating mechanism. A sliding inner shell is arranged in the fixed outer shell. The tension piece tension regulating mechanism is arranged in the sliding inner shell, and a fastening mechanism is arranged between the fixed outer shell and the sliding inner shell. The fastening mechanism can fix or separate the fixed outer shell and the sliding inner shell. In this solution, a conical tension piece is installed on the tension regulator. Under the pressure of an adjusting spring in the tension regulator, the conical tension piece elastically contacts the circumferential surface of the yarn feeding wheel. The yarn stored on the yarn feeding wheel is output after passing through the contact surface between the conical tension piece and the yarn feeding wheel. By adjusting the adjusting spring in the tension regulator, different tensions of yarn can be output to meet the requirements of the fabric.

[0004] Since the yarn feeding device is in an inclined state when installed on the knitting machine, and some fabrics have extremely low tension requirements for the yarn during the conveying process, approaching zero tension, which requires that the conical tension piece does not contact the circumferential surface of the yarn feeding wheel. However, in the existing yarn feeding device, the conical tension piece in the inclined installed yarn feeding device will inevitably contact the circumferential surface of the yarn feeding wheel under the action of gravity, resulting in fluctuations or increases in the yarn feeding tension and affecting the fabric surface quality. Summary of the Invention

[0005] In order to solve the above problems, the first object of the utility model is to provide a tension regulator, which can ensure that the conical tension piece does not contact or is disengaged from the circumferential surface of the yarn feeding wheel without generating obvious pressure. During the processing of special fabrics that require approximate zero-tension conveying, it will not cause fluctuations or increases in the yarn feeding tension and ensure the fabric surface quality.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A tension regulator includes a tension adjusting inner housing, an adjusting disk axially slidably disposed within the tension adjusting inner housing, and an adjusting knob for driving the axial movement of the adjusting disk; characterized in that: a spring fixing ring is integrally formed or fixedly connected inside the outer ring body at the outer end of the adjusting disk, a spring inner ring is provided at the inner end of the tension piece, and the spring fixing ring and the spring inner ring are tightly connected by a plurality of springs evenly distributed in the circumferential direction.

[0008] The utility model adopts the above technical solution, which relates to a tension regulator. The adjusting disk in the tension regulator is slidably disposed within the tension adjusting inner housing. During use, the axial movement of the adjusting disk can be controlled by rotating the adjusting knob, so as to control the pressure exerted by the tension piece on the adjusting disk against the arc surface of the yarn feeding wheel, and further adjust the tension during the yarn feeding process.

[0009] Different from the prior art solutions, there are obvious differences in the installation method and elastic supporting method of the tension piece in this solution. Specifically, a spring fixing ring is formed inside the outer ring body at the outer end of the adjusting disk in this solution. The inner end of the tension piece is located within the spring fixing ring, and the two are tightly connected by a plurality of springs evenly distributed in the circumferential direction. Based on the radial tension of the plurality of springs, the tension piece can be tightened and positioned. In this way, when the yarn feeding device is in an inclined state, the radial tension of the plurality of springs can also ensure that the conical tension piece can overcome the influence of gravity. During the processing of special fabrics that require approximately zero-tension feeding, this solution can ensure that the conical tension piece does not contact or disengages from the circumferential surface of the yarn feeding wheel without generating obvious pressure, and will not cause fluctuations or increases in the yarn feeding tension, ensuring the fabric surface quality.

[0010] In a specific implementation, the adjusting knob includes a knob portion and an adjusting shaft rod connected to the center of the knob portion; an adjusting cylinder is provided at the inner end of the adjusting disk, and the adjusting cylinder is sleeved on the adjusting shaft rod and threadedly engaged therewith to form a thread pair; rotating the adjusting knob can drive the axial movement of the adjusting disk. In this solution, the knob portion of the adjusting knob serves as an adjusting handle, the adjusting shaft rod serves as a central axis, and the thread pair formed by the threaded sleeve of the adjusting cylinder of the adjusting disk on the adjusting shaft rod is a lead screw mechanism. The adjusting knob can control the axial advance and retreat of the adjusting disk, so as to control the pressure or distance between the tension piece on the adjusting disk and the yarn feeding wheel.

[0011] In a further solution, the spring inner ring at the inner end of the tension piece is sleeved on the outer side of the outer end of the adjusting shaft rod of the adjusting knob. In this way, on the one hand, the spring inner ring avoids the outer end of the adjusting shaft rod to prevent interference; on the other hand, the adjusting shaft rod can center-position the spring inner ring.

[0012] In a specific embodiment, hanging holes corresponding radially are respectively arranged on the tension spring fixing ring and the tension spring inner ring. The inner and outer ends of the tension spring are respectively hung in the hanging holes of the tension spring fixing ring and the tension spring inner ring, and the tension spring tightly pulls the tension spring fixing ring and the tension spring inner ring in the radial direction.

[0013] In a further solution, a pin block extending radially outwards is arranged at the inner end of the adjusting disc, and a sliding groove is arranged on the inner wall of the tension adjusting inner housing; the pin block on the adjusting disc is embedded in the sliding groove of the tension adjusting inner housing and can slide axially along it. In this solution, the axial movement is guided based on the cooperation of the sliding groove and the pin block.

[0014] For intuitive observation, the position of the adjusting disc is judged by the position of the pin block, so as to judge the tension magnitude. In this solution, a transparent or hollow observation window is arranged on the side wall of the outer housing, and the observation window is aligned with the pin block in one group of sliding grooves. Further, scale lines can also be arranged on the edge of the observation window to assist in judging the tension.

[0015] Preferably, an outer housing is arranged on the outside of the tension adjusting inner housing, and a fixing seat is arranged on the outer housing.

[0016] Preferably, a fastening mechanism is arranged between the tension adjusting inner housing and the outer housing, and the fastening mechanism can fix or separate the tension adjusting inner housing and the outer housing; the fastening mechanism includes a first magnet and a second magnet, both the first magnet and the second magnet are in a circular ring shape, the first magnet is arranged on the outer circumference of the outer housing in the circumferential direction, and the second magnet is arranged on the outer circumference of the tension adjusting inner housing in the circumferential direction. In this solution, the tension adjusting inner housing and the outer housing are adsorbed and fixed by the first magnet and the second magnet, which can facilitate disassembly and assembly, and can clean the fluff in the tension adjusting device. During the replacement and cleaning process, the acting force magnitude of the adjusting disc will not be changed, and it can continue to work directly without re-adjusting after replacement or cleaning. It enables the employee to replace with one hand, and the operation is simple.

[0017] Preferably, an elastic positioning component is embedded at the end of the tension adjusting inner housing, and a plurality of positioning grooves are arranged circumferentially on the inner wall of the knob part of the adjusting knob; the steel balls at the output end of the elastic positioning component abut against the positioning grooves of the adjusting knob, so as to position the adjusting knob. In this solution, positioning can be carried out through the elastic positioning component, and feedback in terms of feel or sound is given during the rotation process.

[0018] The second object of the present utility model is to provide a knitting conveying device, including a machine base, and an upper cover and a yarn feeding wheel installed on the machine base; a tension regulator is installed at the end of the upper cover, and a conical tension piece is installed on the tension regulator; its characteristics are that: the tension regulator is the tension regulator as described above. Description of the Drawings

[0019] Figure 1 Stereogram of the tension regulator described in Embodiment 1.

[0020] Figure 2 Side view of the tension regulator described in Embodiment 1.

[0021] Figure 3 Cross-sectional view of the tension regulator described in Embodiment 1.

[0022] Figure 4 is Figure 3 A - A cross-sectional view of

[0023] Figure 5 Schematic diagram of the knitting conveying device described in Embodiment 2. Detailed implementation manners

[0024] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0027] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal height than the second feature.

[0029] Embodiment 1:

[0030] As Figures 1 to 4 shown, this embodiment relates to a tension regulator, which includes a tension adjustment inner housing 2, an outer housing 1, an adjustment disc 3 axially slidably arranged inside the tension adjustment inner housing 2, and an adjustment knob 4 for driving the axial movement of the adjustment disc 3. The outer housing 1 is arranged outside the tension adjustment inner housing 2, and a fixed seat 11 is arranged on the outer housing 1. The adjustment disc 3 in this tension regulator is slidably arranged inside the tension adjustment inner housing 2. During use, by rotating the adjustment knob 4, the axial movement of the adjustment disc 3 can be controlled, so as to control the pressure exerted by the tension piece 5 on the adjustment disc 3 on the arc surface of the yarn feeding wheel, and further adjust the tension magnitude during the yarn feeding process.

[0031] Different from the prior art solution, there are obvious differences in the installation method and elastic support method of the tension piece 5 in this solution. Specifically, as Figure 1 and 3As shown in the figure, in the present solution, a spring fixing ring 32 is integrally formed or fixedly connected inside the outer ring body 31 at the outer end of the adjusting disc 3. A spring inner ring 51 is provided at the inner end of the tension piece 5. The spring fixing ring 32 and the spring inner ring 51 are tightly connected by a plurality of evenly distributed circumferential tension springs 6. In a specific implementation, the spring fixing ring 32 and the spring inner ring 51 are respectively provided with radially corresponding hanging holes, and the inner and outer ends of the tension spring 6 are respectively hung in the hanging holes of the spring fixing ring 32 and the spring inner ring 51, and the tension spring 6 tightly pulls the spring fixing ring 32 and the spring inner ring 51 in the radial direction. In the present solution, a spring fixing ring 32 is formed inside the outer ring body 31 at the outer end of the adjusting disc 3, the inner end of the tension piece 5 is inside the spring fixing ring 32, and the two are tightly pulled by a plurality of evenly distributed circumferential tension springs 6. Based on the radial tension of the plurality of tension springs 6, the tension piece 5 can be tightly positioned. Thus, when the yarn feeding device is in an inclined state, the radial tension of the plurality of tension springs 6 can also ensure that the conical tension piece 5 can overcome the influence of gravity. During the processing of special fabrics that require approximately zero-tension feeding, this solution can ensure that the conical tension piece 5 does not contact or disengages from the circumferential surface of the yarn feeding wheel without generating obvious pressure, does not cause fluctuations or increases in the yarn feeding tension, and ensures the fabric surface quality.

[0032] As Figure 3 shown, the adjusting knob 4 includes a knob portion 41 and an adjusting shaft rod 42 connected to the center of the knob portion 41. An adjusting cylinder 33 is provided at the inner end of the adjusting disc 3. The adjusting cylinder 33 is sleeved on the adjusting shaft rod 42 and meshes with it in a threaded manner to form a threaded pair. Rotating the adjusting knob 4 can drive the adjusting disc 3 to move axially. In this solution, the knob portion 41 of the adjusting knob 4 serves as an adjusting handle, the adjusting shaft rod 42 serves as a central axis, and the threaded pair formed by the threaded sleeving of the adjusting cylinder 33 of the adjusting disc 3 on the adjusting shaft rod 42 is a lead screw mechanism. The adjusting knob 4 can control the axial advance and retreat of the adjusting disc 3, thereby controlling the pressure or distance between the tension piece 5 on the adjusting disc 3 and the yarn feeding wheel.

[0033] Figure 1 and 3 in, the spring inner ring 51 at the inner end of the tension piece 5 is sleeved on the outer side of the outer end of the adjusting shaft rod 42 of the adjusting knob 4. In this way, on the one hand, the spring inner ring 51 avoids the outer end of the adjusting shaft rod 42 to prevent interference. On the other hand, the adjusting shaft rod 42 can centrally position the spring inner ring 51.

[0034] Figures 1 to 3In a further embodiment shown, a pin block 34 extending radially outward is provided at the inner end of the adjusting disk 3, and a sliding groove 21 is provided on the inner wall of the inner tension adjusting housing 2. The pin block 34 on the adjusting disk 3 is inserted into the sliding groove 21 of the inner tension adjusting housing 2 and can slide axially along it. In this embodiment, the axial movement is guided based on the cooperation of the sliding groove 21 and the pin block 34. For intuitive observation, the position of the adjusting disk 3 is judged by the position of the pin block 34, so as to judge the tension magnitude. In this embodiment, a transparent or hollowed observation window 12 is provided on the side wall of the outer housing 1, and the observation window 12 is aligned with the pin block 34 in one group of sliding grooves 21. Further, scale lines can be provided at the edge of the observation window 12 to assist in judging the tension.

[0035] As Figure 3 shown, a fastening mechanism is provided between the inner tension adjusting housing 2 and the outer housing 1, and the fastening mechanism can fix or separate the inner tension adjusting housing 2 and the outer housing 1. The fastening mechanism includes a first magnet 22 and a second magnet 23. Both the first magnet 22 and the second magnet 23 are in an annular shape. The first magnet 22 is arranged on the outer circumference of the outer housing 1 in the circumferential direction, and the second magnet 23 is arranged on the outer circumference of the inner tension adjusting housing 2 in the circumferential direction. In this embodiment, the inner tension adjusting housing 2 and the outer housing 1 are adsorbed and fixed by the first magnet 22 and the second magnet 23, which can facilitate disassembly and assembly and can clean the fluff in the tension adjusting device. During the replacement and cleaning process, the acting force magnitude of the adjusting disk 3 will not be changed. After replacement or cleaning, there is no need to readjust and it can directly continue to work. It enables the employee to replace with one hand and the operation is simple.

[0036] Further, an elastic positioning component 24 is embedded at the end of the inner tension adjusting housing 2, and a plurality of positioning grooves are circumferentially arranged on the inner wall of the knob part 41 of the adjusting knob 4. The steel ball 241 at the output end of the elastic positioning component 24 abuts against the positioning groove of the adjusting knob 4, thereby positioning the adjusting knob 4. In this embodiment, positioning can be carried out through the elastic positioning component 24, and feedback in terms of feel or sound is given during the rotation process.

[0037] During the adjustment process of the above-mentioned tension regulator, when the tension piece 5 is not in contact with the circumferential surface of the yarn feeding wheel, a plurality of tension springs 6 radially tension the inner end of the tension piece 5, namely the tension spring inner ring 51. When the adjusting knob 4 controls the adjusting disk 3 and the tension piece 5 thereon to axially approach and press against the circumferential surface of the yarn feeding wheel, the tension springs 6 are stretched by force and generate an elastic force in the axial direction relative to the adjusting disk 3. At this time, the pressure of the tension piece 5 acting on the arc surface of the yarn feeding wheel determines the tension magnitude during the yarn feeding process.

[0038] Embodiment 2:

[0039] As Figure 5As shown, this embodiment aims to provide a knitting conveying device, which includes a machine base 71, an upper cover 72 and a yarn feeding wheel 73 installed on the machine base 71. A tension regulator is installed at the end of the upper cover 72, and a conical tension piece 5 is installed on the tension regulator. The tension regulator is the tension regulator described in Embodiment 1.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0041] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and purposes of the present invention.

Claims

1. A tension regulator, comprising a tension regulating inner housing (2), an adjusting disk (3) axially slidably arranged in the tension regulating inner housing (2), and an adjusting knob (4) driving the adjusting disk (3) to move axially, an outer housing (1) being arranged on the outer side of the tension regulating inner housing (2); characterized in that: A tension spring fixing ring (32) is integrally formed or fixedly connected inside the outer ring body (31) at the outer end of the adjustment disk (3), and a tension spring inner ring (51) is provided on the inner end of the tension plate (5). The tension spring fixing ring (32) and the tension spring inner ring (51) are tensioned and connected via a plurality of tension springs (6) evenly distributed in the circumferential direction.

2. A tension regulator according to claim 1, characterized in that: The adjusting knob (4) comprises a knob portion (41) and an adjusting shaft (42) connected to the center of the knob portion (41); an adjusting cylinder (33) is provided at the inner end of the adjusting disk (3); the adjusting cylinder (33) is sleeved on the adjusting shaft (42) and is threadably engaged with the adjusting shaft (42) to form a thread pair; rotating the adjusting knob (4) can drive the adjusting disk (3) to move axially.

3. A tension regulator according to claim 2, characterized in that: The tension spring inner ring (51) at the inner end of the tension sheet (5) is sleeved on the outer side of the outer end of the adjustment shaft (42) of the adjustment knob (4).

4. A tension regulator according to claim 2, characterized in that: The tension spring fixing ring (32) and the tension spring inner ring (51) are respectively provided with radially corresponding hanging holes, and the inner and outer ends of the tension spring (6) are respectively hung in the hanging holes of the tension spring fixing ring (32) and the tension spring inner ring (51), and the tension spring (6) tensions the tension spring fixing ring (32) and the tension spring inner ring (51) in the radial direction.

5. A tension regulator according to claim 1, characterized in that: The inner end of the adjusting disk (3) is provided with a pin block (34) extending radially outward, and the inner wall of the tension adjusting inner shell (2) is provided with a slide groove (21); the pin block (34) on the adjusting disk (3) is embedded in the slide groove (21) of the tension adjusting inner shell (2) and can slide along the axial direction thereof.

6. A tension regulator according to claim 5, characterized in that: A transparent or hollow observation window (12) is provided on the side wall of the outer shell (1), and the observation window (12) is aligned with the pin block (34) in one set of the slide grooves (21).

7. A tension regulator according to claim 1, characterized in that: A fixing seat (11) is provided on the outer shell (1).

8. A tension regulator according to claim 6, characterized in that: A fastening mechanism is provided between the tension-adjusting inner shell (2) and the outer shell (1), and the fastening mechanism can fix or separate the tension-adjusting inner shell (2) and the outer shell (1); the fastening mechanism comprises a first magnet (22) and a second magnet (23), both of which are in the shape of a circular ring, the first magnet (22) being arranged on the circumference of the outer ring of the outer shell (1), and the second magnet (23) being arranged on the circumference of the outer ring of the tension-adjusting inner shell (2).

9. A tension regulator according to claim 2, characterized in that: An elastic positioning component (24) is embedded in the end of the tension adjustment inner housing (2), and a plurality of positioning grooves are circumferentially arranged on the inner wall of the knob portion (41) of the adjustment knob (4); a steel ball (241) on the output end of the elastic positioning component (24) is supported in the positioning groove of the adjustment knob (4), thereby positioning the adjustment knob (4).

10. A knitting conveying device, comprising a machine base (71), and an upper cover (72) and a yarn feeding wheel (73) mounted on the machine base (71); a tension regulator is mounted at the end of the upper cover (72), and a conical tension sheet (5) is mounted on the tension regulator; the characteristics are: The tension adjuster is the tension adjuster according to any one of claims 1 to 9.

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