阅读说明：本技术 一种针织大圆机及提高传动稳定性的方法 (Circular knitting machine and method for improving transmission stability ) 是由 白镇宇 于 2021-04-30 设计创作，主要内容包括：本发明公开了一种针织大圆机,包括：机架,转动机构,设置在机架内,转动机构上连接有传动机构,传动机构分为上传动架与下传动架,下传动架与转动机构连接,上传动架与大圆机的针织结构连接在一起,转动机构带动下传动架转动,进而带动上传动架转动,以及转动机构包括有设置在下传动架底部的轴架,轴架的输出端连接有传动链,传动链的另一侧连接有电机,通过在下传动架的底部设置的轴架与外置的传动链、电机的配合,能够以底部带动顶部的方式,让下传动架带动上传动架转动,其内的收布结构中的布匹不会受到惯性的影响,整筒布匹仍旧处于顺滑平整的状态。(The invention discloses a circular knitting machine, which comprises: the frame, slewing mechanism, the setting is in the frame, the last drive mechanism that is connected with of slewing mechanism, drive mechanism divide into drive frame and lower drive frame, lower drive frame is connected with slewing mechanism, it links together with the knitting structure of circular knitting machine to go up the drive frame, slewing mechanism drives the rotation of lower drive frame, and then drive the rotation of upper drive frame, and slewing mechanism is including setting up the pedestal in the lower drive frame bottom, the output of pedestal is connected with the driving chain, the opposite side of driving chain is connected with the motor, through the pedestal and external driving chain that set up in the bottom of lower drive frame, the cooperation of motor, can drive the mode at top with the bottom, let the lower drive frame drive the rotation of upper drive frame, cloth among the receipts cloth structure in it can not receive inertial influence, whole section of thick bamboo cloth still is in smooth state.)

1. A circular knitting machine, characterized by comprising: a machine frame (1),

slewing mechanism (3), the setting is in frame (1), be connected with drive mechanism (2) on slewing mechanism (3), drive mechanism (2) divide into transmission frame (21) and lower transmission frame (22) on, lower transmission frame (22) with slewing mechanism (3) are connected, go up transmission frame (21) and circular knitting machine's knitting structure and link together, slewing mechanism (3) drive transmission frame (22) rotate down, and then drive go up transmission frame (21) and rotate to and drive

The rotating mechanism (3) comprises a shaft bracket (31) arranged at the bottom of the lower transmission frame (22),

the output end of the shaft bracket (31) is connected with a transmission chain (32), and the other side of the transmission chain (32) is connected with a motor (33).

2. A circular knitting machine according to claim 1 characterized in that the bottom of the lower driving frame (22) is locked with a connecting disc (221), the bottom of the connecting disc (221) is coaxially provided with an inward groove (2212), and one side of the groove (2212) is communicated with a square groove (2211).

3. The circular knitting machine according to claim 1, characterized in that the shaft bracket (31) comprises an upper fixing disk (311) which is clamped in the connecting disk (221), an embedding sheet (3112) is welded at the center of the top end of the upper fixing disk (311), an embedding handle (3111) is arranged on one side of the embedding sheet (3112), the embedding sheet (3112) and the embedding handle (3111) are clamped in the groove (2212) and the square groove (2211) respectively, and then the shaft bracket (31) and the lower transmission frame (22) are locked and fixed together through screws.

4. The circular knitting machine according to claim 3, characterized in that the shaft frame (31) further comprises a shaft tube (312), the shaft tube (312) is provided with a stepped circular truncated cone (3123), a first bearing (3122) is arranged in an upper circular truncated cone of the stepped circular truncated cone (3123), a second bearing (3125) is arranged in a lower circular truncated cone of the stepped circular truncated cone (3123), the first bearing (3122) and the second bearing (3125) are sleeved on an outer surface of a connecting shaft (3126), a lower fixed disc (313) is locked and fixed to the bottom of the stepped circular truncated cone (3123), the bottom of the connecting shaft (3126) penetrates through the lower fixed disc (313), a driven wheel set (314) is sleeved on the bottom of the connecting shaft (3126), and the driven wheel set (314) is meshed with the transmission chain (32).

5. A circular knitting machine according to claim 4 characterized in that above the first bearing (3122) there is arranged a first sealing ring (3121), above the second bearing (3125) there is arranged a second sealing ring (3124), the first sealing ring (3121), the second sealing ring (3124) closing the first bearing (3122) from the upper and lower ends, respectively, the second sealing ring (3124), the middle section of the connecting shaft (3126) closing the second bearing (3125) from the upper and lower ends, respectively.

6. A circular knitting machine according to claim 4 characterized in that the driven wheel set (314) comprises a gear (3141) which is engaged with the transmission chain (32), a coaxial sleeve (3142) is fixed on the gear (3141), a convex matching groove (3143) is arranged in the sleeve (3142), a flat piece is welded at the bottom of the connecting shaft (3126) and embedded in the matching groove (3143), so that the driven wheel set (314) and the connecting shaft (3126) are fixed together and then locked by screws.

7. A circular knitting machine according to claim 3 characterized in that after the insert tab (3112) is snapped into the recess (2212) and the insert handle (3111) is snapped into the square groove (2211), the shaft bracket (31) and the connecting disc (221) are free of gaps and parallel to each other.

8. A circular knitting machine according to claim 1 characterized in that the machine frame (1) comprises several lower legs (12) and a table top (11) connected with a knitting mechanism, the bottom of the lower legs (12) is connected and fixed by a three-way plate (4), the transmission chain (32) and the motor (33) are respectively arranged inside the three-way plate (4) and the lower legs (12).

9. A method for improving transmission stability of a circular knitting machine is characterized by comprising the following steps:

s1; when the knitting mechanism on the circular knitting machine starts to run, the external motor is started, the rotating mechanism below the transmission mechanism is driven by the external motor through the transmission chain,

s2; the rotating mechanism drives the lower transmission unit to further drive the upper transmission unit locked above the lower transmission unit, so that the drawing and coiling mechanism in the upper transmission unit rotates along with the upper transmission unit to start a normal cloth production process,

s3; in the process of step S2, if the lower transmission unit stops normally or stops suddenly due to a fault, the cloth collecting mechanism therein stops rotating immediately, and the upper transmission unit stops immediately, so that inertia and reverse rotation phenomena occur on the upper transmission unit, and the cloth collecting mechanism of the lower transmission unit is not affected.

Technical Field

The invention relates to a circular knitting machine, in particular to a circular knitting machine and a method for improving transmission stability.

Background

Circular knitting machines, known as circular weft knitting machines (or circular knitting machines). The circular knitting machine has the advantages of high loop forming system (called yarn feeding path number or loop forming path number in enterprises for short) quantity, high rotating speed, high yield, fast pattern change, good fabric quality, few working procedures and strong product adaptability, so the circular knitting machine is developed quickly.

In the use of big circular knitting machine, prior art drives the drive mechanism of the latter half through the drive mechanism of first half, can keep advancing the yarn even, but this kind of drive mode can lead to the transmission unit when stopping, and the lower transmission unit can be because of inertial's reason, rotates a segment displacement again to produce the phenomenon of reversal, in case the phenomenon of reversal produces, will appear obvious shut down the trace above the cloth, makes the quality of cloth influenced, is unfavorable for high quality cloth.

Disclosure of Invention

The invention provides a circular knitting machine and a method for improving transmission stability, which can effectively solve the problems.

The invention is realized by the following steps:

a circular knitting machine comprising: a machine frame, a plurality of guide rails and a plurality of guide rails,

the rotating mechanism is arranged in the rack, a transmission mechanism is connected to the rotating mechanism, the transmission mechanism is divided into an upper transmission frame and a lower transmission frame, the lower transmission frame is connected with the rotating mechanism, the upper transmission frame is connected with a knitting structure of the circular knitting machine, the rotating mechanism drives the lower transmission frame to rotate, and then drives the upper transmission frame to rotate, and

the rotating mechanism comprises a shaft bracket arranged at the bottom of the lower transmission bracket, the output end of the shaft bracket is connected with a transmission chain, and the other side of the transmission chain is connected with a motor.

As a further improvement, the bottom of the lower transmission frame is locked with a connecting disc, the bottom of the connecting disc is coaxially provided with an inward groove, and one side of the groove is communicated with a square groove.

As further improvement, the pedestal is including the joint upper fixed disk in the connection pad, the top center welding of upper fixed disk has the embedding piece, one side of embedding piece is provided with the embedding handle, embedding piece, embedding handle block respectively into recess, square inslot back are in the same place pedestal and lower transmission frame locking through the screw.

As a further improvement, the shaft bracket further comprises a shaft barrel, the shaft barrel is provided with a step-shaped circular truncated cone, a first bearing is arranged in an upper circular truncated cone of the step-shaped circular truncated cone, a second bearing is arranged in a lower circular truncated cone of the step-shaped circular truncated cone, the first bearing and the second bearing are sleeved on the outer surface of the connecting shaft, a lower fixing disc is fixed at the bottom of the step-shaped circular truncated cone in a locking manner, the bottom of the connecting shaft penetrates through the lower fixing disc, a driven wheel set is sleeved at the bottom of the connecting shaft, and the driven wheel set is meshed with the transmission chain.

As a further improvement, a first sealing ring is arranged above the first bearing, a second sealing ring is arranged above the second bearing, the first sealing ring and the second sealing ring respectively seal the first bearing from the upper end and the lower end, and the second sealing ring and the middle section of the connecting shaft respectively seal the second bearing from the upper end and the lower end.

As a further improvement, the driven wheel set comprises a gear engaged with the transmission chain, a coaxial sleeve is fixed on the gear, a convex matching groove is formed in the sleeve, a flat sheet is welded at the bottom of the connecting shaft and embedded into the matching groove, and the driven wheel set and the connecting shaft are fixed together and then locked through screws.

As a further improvement, after the embedding sheet is clamped into the groove and the embedding handle is clamped into the square groove, no gap exists between the shaft bracket and the connecting disc and the shaft bracket and the connecting disc are parallel to each other.

As a further improvement, the rack comprises a plurality of lower legs and a table top connected with a weaving mechanism, the bottoms of the lower legs are fixedly connected through a three-branch plate, and the transmission chain and the motor are respectively arranged inside the three-branch plate and the lower legs.

A method for improving transmission stability of a circular knitting machine comprises the following steps:

s1; when the knitting mechanism on the circular knitting machine starts to run, the external motor is started, the rotating mechanism below the transmission mechanism is driven by the external motor through the transmission chain,

s2; the rotating mechanism drives the lower transmission unit to further drive the upper transmission unit locked above the lower transmission unit, so that the drawing and coiling mechanism in the upper transmission unit rotates along with the upper transmission unit to start a normal weaving process,

s3; in the process of step S2, if the lower transmission unit stops normally or stops suddenly due to a fault, the cloth collecting mechanism therein stops rotating immediately, and the upper transmission unit stops immediately, so that inertia and reverse rotation phenomena occur on the upper transmission unit, and the cloth collecting mechanism of the lower transmission unit is not affected.

The invention has the beneficial effects that:

the invention can drive the upper transmission frame to rotate by the lower transmission frame in a mode that the top is driven by the bottom through the matching of the shaft bracket arranged at the bottom of the lower transmission frame, the external transmission chain and the motor, and the lower transmission frame stops rotating immediately once the motor stops rotating, and is used as a party for driving to rotate.

According to the invention, the transmission chain and the motor are arranged externally, so that the motor is not directly arranged on the shaft bracket, the motor can be directly replaced from the outside under the condition that the motor is damaged, the inside of the whole equipment does not need to be disassembled, the maintenance difficulty is reduced, and the rework production can be carried out in time after the fault maintenance.

According to the invention, the load on the upper transmission frame is reduced by the way that the lower transmission frame drives the upper transmission frame to rotate, so that the frequency conversion pump is reduced, the rotating speed of the traction coiling mechanism in the upper transmission frame can be higher, the whole cloth capacity is improved, the upper end and the lower end are respectively provided with a low-power output motor, and the energy and the electricity are saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a circular knitting machine provided in embodiment 1 of the present invention.

Fig. 2 is a schematic view of a circular knitting machine according to embodiment 1 of the present invention with a frame removed.

Fig. 3 is a schematic structural diagram of a bottom of a lower transmission frame provided in embodiment 1 of the present invention.

Fig. 4 is an exploded schematic view of a shaft bracket provided in embodiment 1 of the present invention.

Fig. 5 is a schematic structural diagram of an upper fixed disk provided in embodiment 1 of the present invention.

Fig. 6 is a schematic structural diagram of a driven wheel set provided in embodiment 1 of the present invention.

Fig. 7 is a schematic structural diagram of a circular knitting machine provided in embodiment 2 of the present invention.

Detailed Description

The embodiments of the present invention are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating the purposes, technical solutions and advantages of the embodiments of the present invention, which will be described in detail and fully with reference to the accompanying drawings in the embodiments of the present invention. All other implementations that can be derived by one of ordinary skill in the art based on the embodiments of the present invention show or imply relative importance or implicitly indicate the number of technical features indicated, without inventive step. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example 1

Referring to fig. 1-7, a circular knitting machine includes: frame 1, slewing mechanism 3 sets up in the frame 1, be connected with drive mechanism 2 on the slewing mechanism 3, drive mechanism 2 divide into drive frame 21 and lower drive frame 22 down, lower drive frame 22 with slewing mechanism 3 is connected, it links together with the knitting structure of big circular knitting machine to go up drive frame 21, slewing mechanism 3 drives down drive frame 22 rotates, and then drives go up drive frame 21 and rotate, and slewing mechanism 3 is including setting up the pedestal 31 of drive frame 22 bottom down, the output of pedestal 31 is connected with driving chain 32, the opposite side of driving chain 32 is connected with motor 33.

In the working process of the circular knitting machine, the circular motion is carried out by taking a central point as a base point, the driving end and the driven end are locked and fixed, after the rotation is stopped, the driven end is easy to shift for a certain distance due to inertia factors, the degree is called as the moment of inertia, the moment of inertia is increased along with the increase of the mass of a rotor, so that the driving end is arranged at one end of the lower transmission frame 22, the lower transmission frame 22 is changed into the driving end, the lower transmission frame 22 drives the upper transmission frame 21 to rotate, one end with the inertia is transferred into the upper transmission frame 21, the whole cloth production process cannot be influenced by the inertia reversal of the inertia of the upper transmission frame 21, the cloth in the cloth collecting mechanism in the lower transmission frame 22 is not influenced by the inertia by the mode of transferring the moment of inertia, and the quality of the cloth is improved,

moreover, the output structure of the motor 33 is arranged on the lower transmission frame 22, so that the weight of the upper transmission frame 21 is reduced, the motor 33 originally arranged at the top end needs to drive the drawing and coiling mechanism and the whole transmission mechanism 2, the load of the whole motor 33 is large, the power consumption is high, the rotating speed is not suitable to be too high due to the heavy top weight, and the output structure of the motor 33 is arranged on the lower transmission frame 22, the weight of the upper end is lightened, the speed of the needle cylinder of the circular knitting machine for carrying the knitting needle to run can be faster, the whole productivity is improved, and because the loads at the upper end and the lower end become relatively uniform, the power of the adopted motor 33 is lower, the whole load is reduced, more electric energy can be saved, and the frequency conversion cost of the motor 33 with low power output is lower, the whole cost can be reduced, preferably, the motor 33 is a matching of a servo motor and a speed reducing mechanism, and the rotating speed of the lower transmission frame 22 can be better adjusted.

Further, the bottom of the lower transmission frame 22 is locked with the connection disc 221, the bottom of the connection disc 221 is coaxially provided with an inward groove 2212, one side of the groove 2212 is communicated with a square groove 2211, the shaft bracket 31 comprises an upper fixing disc 311 clamped in the connection disc 221, an embedding sheet 3112 is welded at the center of the top end of the upper fixing disc 311, an embedding handle 3111 is arranged at one side of the embedding sheet 3112, the embedding sheet 3112 and the embedding handle 3111 are respectively clamped in the groove 2212 and the square groove 2211, the shaft bracket 31 and the lower transmission frame 22 are locked and fixed together through screws, preferably, when the embedding sheet 3112 is clamped in the groove 2212 and the embedding handle 3111 is clamped in the square groove 2211, no gap exists between the shaft bracket 31 and the connection disc 221 and are parallel to each other,

wherein, embedding piece 3112 card is gone into recess 2212 embedding handle 3111 card is gone into the agree with effect of square groove 2211 can possess certain location joint effect under the condition of screw bolt locking itself, and seamless during the joint, does not have the swing phenomenon, can be when stopping, overcome the influence of the deflection force that probably appears to cloth, reduce the possibility that fold and shut down trace that probably appear to cloth in the twinkling of an eye that equipment started and stopped appear in the twinkling of an eye, make the transition relation of hookup location obtain optimizing.

Further, the shaft frame 31 further comprises a shaft tube 312, the shaft tube 312 is provided with a stepped circular table 3123, a first bearing 3122 is arranged in an upper circular table of the stepped circular table 3123, a second bearing 3125 is arranged in a lower circular table of the stepped circular table 3123, the first bearing 3122 and the second bearing 3125 are sleeved on an outer surface of a connecting shaft 3126, a lower fixed disk 313 is locked and fixed at the bottom of the stepped circular table 3123, the bottom of the connecting shaft 3126 penetrates through the lower fixed disk 313, a driven wheel set 314 is sleeved at the bottom of the connecting shaft 3126, the driven wheel set 314 is engaged with the transmission chain 32,

different first bearing 3122 and second bearing 3125 of diameter through setting up carry out fixed support to connecting axle 3126, assist connecting axle 3126 on the horizontal plane from a plurality of different orders, improve the precision of connecting axle 3126 gyration from the horizontal plane of difference, guarantee that connecting axle 3126 can rotate along the vertical axis, do not take place any deviation during the rotation, the cloth degree of consistency of the whole book of formation is better.

Further, a first sealing ring 3121 is disposed above the first bearing 3122, a second sealing ring 3124 is disposed above the second bearing 3125, the first sealing ring 3121 and the second sealing ring 3124 respectively seal the first bearing 3122 from the upper end and the lower end, the middle sections of the second sealing ring 3124 and the connecting shaft 3126 respectively seal the second bearing 3125 from the upper end and the lower end, both the upper end and the lower end of the first bearing 3122 and the second bearing 3125 can be sealed, firstly, the levelness of the first bearing 3122 and the second bearing 3125 can be ensured, the horizontal fixing effect of the first bearing 3122 and the second bearing 3125 can be enhanced, secondly, the lubricating oil in the bearings can be prevented from overflowing, the first bearing 3122 and the second bearing 3125 can be always maintained at a better rotation degree, and the rotation freedom degree of the first bearing 3122 and the second bearing 3125 can be maintained.

Further, the driven wheel set 314 comprises a gear 3141 engaged with the transmission chain 32, a coaxial sleeve 3142 is fixed on the gear 3141, an outward convex matching groove 3143 is arranged in the sleeve 3142, a flat sheet (not shown) is welded at the bottom of the connecting shaft 3126 and is embedded into the matching groove 3143, so that the driven wheel set 314 and the connecting shaft 3126 are fixed together and then locked by screws,

wherein, the cooperation effect of platode and cooperation groove 3143 can reduce the locking degree of difficulty of screw firstly, and when initial installation, the two can be in the same place through the mode of accurate nested location, even if not hard up phenomenon appears in the screw, because the weight of drive mechanism 2 itself, can make connecting axle 3126 and driven wheelset 314 still can be connected a period, stops until equipment safety, can reduce the operational risk of big circular knitting machine.

Further, the frame 1 includes a plurality of lower feet 12 and is connected with the mesa 11 of weaving the mechanism, the bottom of lower foot 12 is connected fixedly through three fork board 4, driving chain 32, motor 33 set up respectively the inside of three fork board 4, lower foot 12, hide driving chain 32, motor 33 in the inside setting of three fork board 4, lower foot 12, can avoid directly exposing externally on one hand, prevent the influence of dust and foreign object, prevent to influence the rotation of big circular knitting machine, receive the cloth action, on the other hand can improve the holistic pleasing to the eye degree of equipment, retrencies external structure.

The embodiment also provides a method for improving the transmission stability of the circular knitting machine, which comprises the following steps:

s1; when the knitting mechanism on the circular knitting machine starts to run, the external motor is started, the rotating mechanism below the transmission mechanism is driven by the external motor through the transmission chain,

s2; the rotating mechanism drives the lower transmission unit to further drive the upper transmission unit locked above the lower transmission unit, so that the drawing and coiling mechanism in the upper transmission unit rotates along with the upper transmission unit to start a normal weaving process,

s3; in the process of step S2, if the lower transmission unit stops normally or stops suddenly due to a fault, the cloth collecting mechanism therein stops rotating immediately, and the upper transmission unit stops immediately, so that inertia and reverse rotation phenomena occur on the upper transmission unit, and the cloth collecting mechanism of the lower transmission unit is not affected.

Example 2

Referring to fig. 7, the present embodiment also includes a frame 1, an upper transmission frame 21, and a lower transmission frame 22 based on embodiment 1, and the connection relationship of these parts is the same as embodiment 1, and is not described again here.

On the bottom of the lower transmission frame 22, a bearing seat 6 is now provided, and a fluted disc 5 is provided between the bearing seat 6 and the lower transmission frame 22, said fluted disc 5 being connected with a matching tooth 7 along one end of the three-way plate 4, wherein the matching tooth 7 is fixed on the shaft frame 31, and the shaft frame 31 is still connected with the motor 33 through the transmission chain 32.

Through the above arrangement, the motor 33 can drive the transmission chain 32 and the shaft bracket 31 to rotate, and then drive the matching teeth 7 to engage with the fluted disc 5 to rotate, so that the lower transmission frame 22 drives the upper transmission frame 21 to rotate, thereby achieving the same technical effect as that of embodiment 1.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.