Circular knitting machine triangular seat adjusting device based on planetary transmission

Abstract

A circular knitting machine triangular seat adjusting device based on planetary transmission comprises a circular knitting machine triangular seat and an adjusting device body installed on the circular knitting machine triangular seat and structurally comprises an adjusting base, a dial assembly arranged at the top of the adjusting base and a planetary transmission assembly in transmission fit with the adjusting base and the dial assembly. The adjusting base is internally provided with a transmission cavity used for installing the planetary transmission assembly, the planetary transmission assembly comprises a sun wheel adjusting frame and a planetary wheel set arranged on the sun wheel adjusting frame, the sun wheel adjusting frame is rotatably arranged in the transmission cavity, one end of the sun wheel adjusting frame extends out of the transmission cavity and penetrates through the dial assembly, and the other end of the sun wheel adjusting frame extends out of the dial assembly. According to the planetary transmission assembly, higher-level microspur adjustment is achieved under the original stroke, the dynamic precision control problem in the high-density fabric weaving process is solved, the operation precision is improved, the production requirement of superfine stitch length fabric is met, meanwhile, the planetary transmission assembly shares spiral line stress, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of knitting machine machinery, and in particular relates to a triangular seat adjusting device for a circular knitting machine based on planetary transmission. Background Art

[0002] A scaler is a device used to precisely adjust and control the gauge of knitting needles on the cylinder of a circular knitting machine. As circular knitting processes become increasingly refined and complex, the requirements for adjustment accuracy, stability, and flexibility are also increasing. The use of a pure Archimedean spiral scaler, with its unique geometric properties, enables uniform and stable displacement transmission. This offers a natural advantage in precisely controlling the position of the slider in the adjustment device, thereby achieving fine adjustment of the gauge.

[0003] However, the traditional large circular knitting machine uses a pure Archimedean spiral scale, which has the following defects:

[0004] 1. The scale has a total adjustment stroke of 3.6mm, with each scale tick corresponding to 0.1mm. Precision adjustment relies entirely on a process gauge to achieve micron-level adjustment. The operator calibrates the nozzle on the machine using this as a reference block and records the specified value on the gauge. After the machine is assembled, all other tripods must be removed. Each tripod must be recalibrated using the specified nozzle value before being reinstalled.

[0005] 2. Direct force on the spiral wire can easily cause wear and affect the adjustment accuracy. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a triangular seat adjustment device for a large circular knitting machine based on planetary transmission to solve the existing problems.

[0007] In order to achieve the above-mentioned object, the present invention is implemented through the following technical solutions: a large circular knitting machine triangle seat adjustment device based on planetary transmission, comprising a large circular knitting machine triangle seat and an adjustment device body mounted on the large circular knitting machine triangle seat, the adjustment device body comprising an adjustment base and a scale plate assembly provided on the top of the adjustment base, and a planetary transmission assembly for transmission cooperation with the two;

[0008] A transmission cavity for mounting a planetary transmission assembly is provided in the adjustment base, wherein the planetary transmission assembly includes a sun gear adjustment frame and a planetary gear set provided on the sun gear adjustment frame. The sun gear adjustment frame can be rotatably provided in the transmission cavity, and one end extends out of the transmission cavity and passes through the dial assembly. During adjustment, the sun gear adjustment frame is rotated to drive the planetary gear set to rotate and cooperate, thereby driving the adjustment base to rotate and adjust the stroke. The dial assembly rotates synchronously accordingly and feedbacks the debugging numerical parameters to achieve macro debugging of the equipment.

[0009] Furthermore, the dial assembly includes a dial and a synchronization dial coaxially arranged above and below, the synchronization dial is provided with a first through hole, the dial is provided with a second through hole adapted to the first through hole, and the end of the sun gear adjustment frame away from the bottom of the transmission cavity extends through the first through hole and the second through hole.

[0010] Furthermore, the scale plate is provided with at least one scale plate fixing screw for fixing the scale plate and the sun gear adjustment frame.

[0011] Furthermore, the sun gear adjustment frame includes an adjustment platform and an active roller integrally connected above and below. An adjustment slot is provided on the adjustment platform for controlling the debugging stroke. A sun gear is provided on the active roller, and one end of the sun gear extends into the bottom of the transmission cavity as the center of rotation for circumferential rotation. The planetary gear set includes at least one group of mating rollers and planetary gears provided on the mating rollers.

[0012] Furthermore, the matching rollers are arranged around the active roller in a planetary manner, and the planetary gears and the sun gear form a mechanical transmission matching relationship.

[0013] Furthermore, an adjusting gear ring is provided on the inner wall of the transmission cavity, and a matching gear ring that cooperates with the adjusting gear ring is provided on the bottom of the synchronization scale plate to achieve synchronous transmission of the two.

[0014] Furthermore, the adjusting ring gear and the planetary gear are in a meshing transmission relationship, wherein the ratio of the single-circle stroke of the adjusting ring gear to the planetary gear is an arbitrary multiple to improve the adjustment accuracy.

[0015] Furthermore, a rotation groove is provided at the center of the bottom of the transmission cavity, and one end of the active roller extends into the rotation groove.

[0016] Furthermore, the shape of the adjustment groove is any polygon or a cross.

[0017] Furthermore, the adjustment base is provided with an Archimedean spiral groove.

[0018] The beneficial effects of the utility model are:

[0019] 1. The adjustment stroke is amplified by 4 times: the theoretical stroke of a single turn is reduced to 0.9mm, while the actual output remains at 3.6mm / gear ring rotation. 0.025mm-level micro adjustment is achieved under the original stroke, solving the problem of dynamic precision control in high-density fabric weaving.

[0020] 2. Improved operating accuracy to meet the production needs of ultra-fine gauge fabrics.

[0021] 3. The planetary mechanism shares the force of the spiral line and extends the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 This is a schematic diagram of the triangular seat structure of a large circular knitting machine according to an embodiment of the present utility model;

[0024] Figure 2 The regulating device of the embodiment of the utility model explodes Figure 1 ;

[0025] Figure 3 A cross-sectional view of an adjusting device according to an embodiment of the present utility model;

[0026] Figure 4 This is a schematic structural diagram of a planetary transmission assembly according to an embodiment of the present utility model;

[0027] Figure 5 This is a partial exploded view of the regulating device according to an embodiment of the present utility model;

[0028] Figure 6 This is a schematic structural diagram of the adjustment base according to an embodiment of the present utility model;

[0029] Figure 7 The explosion of the regulating device of the embodiment of the utility model Figure 2 ;

[0030] Figure 8 This is a structural schematic diagram of a sun gear adjustment frame according to another embodiment of the present invention;

[0031] Figure 9 This is a schematic structural diagram of an adjusting device according to another embodiment of the present invention.

[0032] Description of main reference numerals:

[0033] 1. Adjust the base; 11. Transmission cavity; 111. Adjust the ring gear; 112. Match the ring gear; 113. Rotation groove; 12. Archimedean spiral groove;

[0034] 2. Scale plate assembly; 21. Scale plate; 211. Second through hole; 212. Scale plate fixing screw; 22. Synchronous scale plate; 221. First through hole;

[0035] 3. Planetary transmission assembly; 31. Sun gear adjustment frame; 311. Adjustment platform; 312. Active roller; 313. Adjustment slot; 314. Sun gear; 32. Planetary gear set; 321. Matching roller; 322. Planetary gear;

[0036] 4. Triangular seat for large circular knitting machine. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0038] Example 1

[0039] Figure 1 This is a schematic diagram of the triangular seat structure of a large circular knitting machine according to an embodiment of the present utility model. Figure 2 The regulating device of the embodiment of the utility model explodes Figure 1 , Figure 3 This is a cross-sectional view of the adjustment device according to an embodiment of the present utility model. Figure 1 、 Figure 2 and Figure 3 As shown, the structure of a triangular seat adjustment device for a large circular knitting machine based on planetary transmission according to an embodiment of the present invention will be described in detail.

[0040] The present invention is directed to a planetary transmission-based triangular seat adjustment device for a large circular knitting machine. The device comprises a triangular seat 4 for the large circular knitting machine and an adjustment device body mounted on the triangular seat 4. The adjustment device body comprises an adjustment base 1 and a scale plate assembly 2 disposed on top of the adjustment base 1, and a planetary transmission assembly 3 that cooperates with the adjustment base 1 and the scale plate assembly 2.

[0041] The adjustment base 1 is provided with a transmission cavity 11 for mounting a planetary transmission assembly 3, wherein the planetary transmission assembly 3 includes a sun gear adjustment frame 31 and a planetary gear set 32 provided on the sun gear adjustment frame 31. The sun gear adjustment frame 31 is rotatably arranged in the transmission cavity 11, and one end away from the bottom of the transmission cavity 11 extends out of the transmission cavity 11 and passes through the dial assembly 2, and the other end extends into the transmission cavity 11. During adjustment, the sun gear adjustment frame 31 is rotated to drive the planetary gear set 32 to rotate and cooperate, thereby driving the adjustment base 1 to rotate and adjust the stroke. The dial assembly 2 rotates synchronously accordingly and feedbacks the debugging numerical parameters. The stroke scale value is marked on the dial assembly 2. Therefore, when the dial assembly 2 rotates synchronously, the scale value marked on it will be used as a reference feedback to prompt the current debugging stroke distance, so as to achieve macro debugging of the equipment.

[0042] Among them, when positional directional words such as "top", "bottom", "up and down" are mentioned in this application, they are defined as when observing the adjustment device, the positions from top to bottom are the dial assembly 2 and the adjustment base 1 (the dial assembly 2 is located above the adjustment base 1), that is, the viewing angle direction of this observation direction is the normal viewing angle.

[0043] See Figure 2 and Figure 3For precise adjustment, the dial assembly 2 includes a dial 21 and a synchronization dial 22 coaxially arranged above and below. The synchronization dial 22 is mounted on the top of the adjustment base 1, and the dial 21 is movably mounted on top of the synchronization dial 22. The synchronization dial 22 is provided with a first through-hole 221, and the dial 21 is provided with a second through-hole 211 that matches the first through-hole 221. Specifically, the first through-hole 221 and the second through-hole 211 have the same diameter. Furthermore, the end of the sun gear adjustment frame 31, which is away from the bottom of the transmission chamber 11, extends through the first through-hole 221 and the second through-hole 211.

[0044] See Figure 2 and Figure 3 In order to synchronously feedback the value, the dial 21 is provided with at least one dial fixing screw 212, and the dial 21 is correspondingly provided with a threaded hole adapted to the dial fixing screw 212, which is used to fix the dial 21 to the sun gear adjustment frame 31. When the sun gear adjustment frame 31 is rotated, the dial 21 will also rotate synchronously. At the same time, corresponding scale values are marked on the dial 21 and the synchronization dial 22 to reflect the adjusted stroke value, which is used to implement feedback adjustment accuracy.

[0045] See Figure 4 To achieve the debugging function, the sun gear adjustment frame 31 includes an adjustment platform 311 and a driving roller 312 that are integrally connected at the top and bottom, and the two maintain axial alignment. The adjustment platform 311 is provided with an adjustment slot 313 for controlling the debugging stroke. When adjustment is required, the adjustment tool is inserted into the adjustment slot 313 and the adjustment is completed by rotating clockwise or counterclockwise. The driving roller 312 is provided with a sun gear 314, and the end away from the adjustment platform 311 extends into the bottom of the transmission cavity 11 as the rotation center. When the adjustment platform 311 is rotated clockwise (counterclockwise), since the adjustment platform 311 and the driving roller 312 are axially aligned, they rotate circumferentially together, and then the sun gear 314 provided on the driving roller 312 rotates synchronously with the driving roller 312.

[0046] See Figure 4 In order to improve the debugging accuracy, the planetary gear set 32 includes at least one group of mating rollers 321 and planetary gears 322 arranged on the mating rollers 321. In this embodiment, the planetary gear set 32 includes three groups of mating rollers 321 and planetary gears 322, and the mating rollers 321 are arranged around the active roller 312 in a planetary manner, and just form a mechanical transmission matching relationship between the planetary gears 322 and the sun gear 314. Specifically, the three planetary gears 322 are arranged around the sun gear 314 and maintain meshing transmission with the sun gear 314. Accordingly, gear teeth and tooth grooves for meshing transmission are provided on the planetary gears 322 and the sun gear 314.

[0047] See Figure 5 In order to achieve synchronous transmission, an adjustment ring gear 111 is provided on the inner wall of the transmission cavity 11. The adjustment ring gear 111 is circumferentially arranged around the inner wall of the transmission cavity 11. A matching ring gear 112 is provided at the bottom of the synchronization dial 22 to cooperate with the adjustment ring gear 111. Specifically, the adjustment ring gear 111 has a ring gear consisting of a plurality of gear teeth and tooth grooves surrounding the inner wall of the transmission cavity 11. Correspondingly, a ring gear consisting of a plurality of gear teeth and tooth grooves that are engaged (embedded) with the adjustment ring gear 111 is provided on the outer wall of the matching ring gear 112. When the adjustment base 1 rotates, the synchronization dial 22 also rotates together due to the engagement relationship between the two, so as to achieve synchronous transmission of the two. At the same time, the setting of the ring gear is not only used for post-synchronous transmission, but also can be used for mechanical transmission with the planetary transmission assembly 3.

[0048] See Figure 2 、 Figure 3 and Figure 4 In order to improve the adjustment accuracy, the adjustment ring gear 111 and the planetary gear 322 are in a meshing transmission relationship, that is, the gear teeth and tooth grooves provided on the sun gear 314, the planetary gear 322 and the adjustment ring gear 111 are completely identical and adapted to realize a mechanical transmission relationship among the three, wherein the ratio of the single-turn stroke of the adjustment ring gear 111 and the planetary gear 322 is any multiple. In this embodiment, the ratio of the single-turn stroke of the adjustment ring gear 111 and the planetary gear 322 is 4:1, that is, when the control adjustment platform 311 rotates, the active roller 312 synchronously drives the sun gear 314 to rotate, and then the planetary gear 322 will rotate accordingly by a stroke L1, and at the same time, the planetary gear 322 will also drive the adjustment base 1 provided with the adjustment ring gear 111 to rotate by a corresponding stroke L2, that is, during the rotation adjustment, the following relationship will be satisfied: L1=L2 / 4, wherein the stroke rotated Correspondingly, the dial assembly 2 will be reflected with a specific numerical scale. By adding a planetary wheel 322 for rotation adjustment under the original single-circle stroke of the sun gear 314, the adjustment accuracy of each small grid can be magnified four times. Taking the adjustment value of the dial 21 as an example, when the original scale value corresponds to 0.1mm per small grid (minimum adjustment accuracy) and the total stroke is 3.6mm, adjusting one grid means rotating 0.1mm, and the planetary wheel 322 can reduce the accuracy corresponding to each small grid to 0.025mm. The planetary wheel 322 travels a complete single circle, which is only 0.9mm on the adjustment gear ring 111, providing a more micro-level adjustment accuracy. When the total stroke remains unchanged, the adjustment accuracy is significantly improved, solving the problem of dynamic precision control in high-density fabric weaving. When the weft knitting machine is assembled and sent for debugging, the operator can achieve micron-level debugging without repeatedly disassembling the triangle seat.

[0049] See Figure 2 and Figure 3In order to improve stability, when the end of the active roller 312 away from the adjustment platform 311 extends into the bottom of the transmission cavity 11 as the rotation center for circumferential rotation, a corresponding rotation groove 113 is provided at the bottom center of the transmission cavity 11 for mounting the active roller 312. The rotation groove 113 is adapted to the diameter of the active roller 312. The depth of the rotation groove 113 just accommodates a portion of the active roller 312 and does not cause the sun gear 314 to contact the bottom wall of the transmission cavity 11. In addition, the setting length of the matching roller 321 also does not contact the bottom wall of the transmission cavity 11. The various components are arranged in order in the transmission cavity 11 to improve stability during rotation.

[0050] See Figure 2 In order to improve the convenience of adjustment, the shape of the adjustment groove 313 is an arbitrary polygon. Specifically, any transverse cross-section of the adjustment groove 313 should be a polygon, and the polygonal groove (adjustment groove 313) formed by the polygon should have a rotational restraint force during rotation adjustment. In this embodiment, the adjustment groove 313 is a hexagonal groove, which has good stability. When using the adjustment tool for adjustment, it is not easy to loosen, thereby improving the convenience of adjustment.

[0051] See Figure 7 In order to improve the adjustment accuracy, the adjustment base 1 is provided with an Archimedean spiral groove 12, which can accurately convert the rotational motion of the scale into linear motion along the spiral groove, and then accurately drive the lower circle slider to translate, thereby realizing precise adjustment of the needle pitch of the needle cylinder to meet the needs of weaving fabrics with different needle pitches. In addition, the planetary transmission assembly 3 provided in this embodiment cooperates to share the force of the spiral line and improve its service life.

[0052] Example 2

[0053] For the sake of simplicity in description, the parts that are the same as those in Example 1 will not be described in detail. The structure that is different from Example 1 of the present invention will be mainly described. The only difference between Example 2 and Example 1 is the shape of the adjustment groove.

[0054] See Figure 8 In this embodiment, the adjustment groove 313 is in the shape of a cross. The cross-shaped groove enables it to distribute friction more evenly when adjusted by the adjustment tool, reduce local overload, thereby better restraining rotational motion and improving stability during adjustment.

[0055] Example 3

[0056] For the sake of simplicity in description, the parts that are the same as those in other embodiments will not be described in detail. The structures that are different from other embodiments of the present invention will now be mainly described. The difference between Example 3 and other embodiments is only the difference in the planetary gear set.

[0057] See Figure 9In this embodiment, the planetary gear set 32 only includes a set of mating rollers 321 and planetary gears 322 arranged on the mating rollers 321. Only one set is set during rotation adjustment, which reduces the meshing impact loss of the sun gear 314, the planetary gear 322 and the adjustment ring gear 111, improves the mechanical transmission efficiency, and has a simple structure, reducing the manufacturing cost.

[0058] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0059] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A planetary transmission-based large circular knitting machine triangle seat adjustment device, comprising a large circular knitting machine triangle seat (4) and an adjustment device body mounted on the large circular knitting machine triangle seat (4), characterized in that: The regulating device body comprises an adjusting base (1), a dial assembly (2) arranged on the top of the adjusting base (1), and a planetary transmission assembly (3) that cooperates with the adjusting base (1). The adjustment base (1) is provided with a transmission cavity (11) for mounting a planetary transmission assembly (3), wherein the planetary transmission assembly (3) includes a sun gear adjustment frame (31) and a planetary gear set (32) provided on the sun gear adjustment frame (31). The sun gear adjustment frame (31) is rotatably provided in the transmission cavity (11), and one end thereof extends out of the transmission cavity (11) and passes through the dial assembly (2). When adjusting, the sun gear adjustment frame (31) is rotated to drive the planetary gear set (32) to rotate and cooperate, thereby driving the adjustment base (1) to rotate and adjust the stroke. The dial assembly (2) rotates accordingly and synchronously, and feedbacks the debugging numerical parameters to achieve micro-debugging of the equipment.

2. The planetary transmission-based triangular seat adjustment device for a large circular knitting machine according to claim 1, characterized in that: The scale plate assembly (2) comprises a scale plate (21) and a synchronous scale plate (22) coaxially arranged above and below, the synchronous scale plate (22) being provided with a first through hole (221), the scale plate (21) being provided with a second through hole (211) adapted to the first through hole (221), and an end of the sun gear adjustment frame (31) away from the bottom of the transmission cavity (11) extending through the first through hole (221) and the second through hole (211).

3. The planetary transmission-based triangular seat adjustment device for a large circular knitting machine according to claim 2, characterized in that: The scale disc (21) is provided with at least one scale disc fixing screw (212) for fixing the scale disc (21) and the sun gear adjustment frame (31).

4. The planetary transmission-based triangular seat adjustment device for a large circular knitting machine according to claim 1, characterized in that: The sun gear adjustment frame (31) includes an adjustment platform (311) and an active roller (312) integrally connected to each other. The adjustment platform (311) is provided with an adjustment slot (313) for controlling the adjustment stroke. The active roller (312) is provided with a sun gear (314) with one end extending into the bottom of the transmission cavity (11) as a rotation center for circumferential rotation. The planetary gear set (32) comprises at least one set of matching rollers (321) and planetary gears (322) arranged on the matching rollers (321).

5. The planetary transmission-based triangular seat adjustment device for a large circular knitting machine according to claim 4, characterized in that: The matching rollers (321) are arranged around the active roller (312) in a planetary manner, and form a mechanical transmission matching relationship between the planetary gears (322) and the sun gear (314).

6. The planetary transmission-based triangular seat adjustment device for a large circular knitting machine according to claim 2, characterized in that: An adjusting gear ring (111) is provided on the inner wall of the transmission cavity (11), and a matching gear ring (112) that matches the adjusting gear ring (111) is provided on the bottom of the synchronization scale plate (22) to achieve synchronous transmission of the two.

7. The planetary transmission-based triangular seat adjustment device for a large circular knitting machine according to claim 6, characterized in that: The adjusting ring gear (111) and the planetary gear (322) are in a meshing transmission relationship, wherein the ratio of the single-turn stroke of the adjusting ring gear (111) to the single-turn stroke of the planetary gear (322) is an arbitrary multiple, so as to improve the adjustment accuracy.

8. The planetary transmission-based triangular seat adjustment device for a large circular knitting machine according to claim 4, characterized in that: A rotation groove (113) is provided at the bottom center of the transmission cavity (11), into which one end of the active roller (312) extends.

9. The planetary transmission-based triangular seat adjustment device for a large circular knitting machine according to claim 4, characterized in that: The shape of the adjustment groove (313) is any polygon or a cross.

10. The planetary transmission-based triangular seat adjustment device for a large circular knitting machine according to claim 1, characterized in that: The adjustment base (1) is provided with an Archimedean spiral groove (12).

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