Lower needle cylinder mechanism with lubrication and heat dissipation functions and circular weft knitting machine with lower needle cylinder mechanism

Abstract

The invention provides a lubrication and heat dissipation lower needle cylinder mechanism and a circular weft knitting machine thereof, and relates to the technical field of weft knitting machines. The lower needle cylinder mechanism comprises a lower needle cylinder body, a bearing is arranged on the outer side of the lower needle cylinder body, a protective cover is fixedly connected to the outer side of the bearing, a cleaning unit is arranged on the inner side of the protective cover, the cleaning unit comprises fixing plates, and the fixing plates are fixedly connected to the upper sides of the left end and the right end of the protective cover. A guide groove is formed in the lower side of the protective cover, a guide block is slidably connected to the inner side of the guide groove, and a gear ring is fixedly connected to the lower side of the guide block. By arranging the bearing and the protective cover, the bearing can be protected conveniently when the lower needle cylinder body rotates, the cleaning roller can be conveniently controlled to rotate through the tooth ring, the tooth plate, the side plate, the mounting rod and the cleaning roller at the bottom, fiber scraps on the surface of the bearing can be cleaned through the cleaning roller, and the situation that use of the bearing is affected is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of weft knitting machines, in particular to a lubricating and heat-dissipating lower needle cylinder mechanism and a circular weft knitting machine thereof. Background Art

[0002] Weft knitting machine is a kind of knitting machine. Yarn is fed into the knitting needles along the weft direction to knit weft knitted fabrics. Circular weft knitting machine: The needle bed is cylindrical and disc-shaped, mainly used for processing knitted blank fabrics of various structures. It has more loop forming systems, high speed, high output, fast pattern change and good fabric quality. It can be divided into single-sided series and double-sided series. The single-sided series includes ordinary single-sided knitting circular machine, single-sided terry machine, three-thread weft insertion machine, jacquard single-sided knitting circular machine, etc.; the double-sided series includes rib machine, ordinary double-sided circular machine, jacquard double-sided circular machine, etc.

[0003] When the lower needle cylinder is driven, a bearing needs to be provided on the outside of the needle cylinder. Since the lower needle cylinder rotates at high speed during knitting, yarn debris is easy to adhere to the bearing during knitting, causing the bearing to run at high speed, increasing the temperature of the bearing, and the fiber debris of the yarn is not easy to clean up. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a lubricating and heat-dissipating lower needle cylinder mechanism and a circular weft knitting machine thereof, which solves the problem that the outer side of the lower needle cylinder is provided with a bearing and the outer side fiber debris is not easy to clean.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a lubricating and heat-dissipating lower syringe mechanism, comprising a lower syringe body, a bearing is arranged on the outer side of the lower syringe body, a protective cover is fixedly connected to the outer side of the bearing, and a cleaning unit is arranged on the inner side of the protective cover;

[0008] The cleaning unit comprises a fixing plate, which is fixedly connected to the upper sides of the left and right ends of the protective cover, the lower side of the protective cover is provided with a guide groove, the inner side of the guide groove is slidably connected with a guide block, the lower side of the guide block is fixedly connected with a gear ring, the lower side of the gear ring is fixedly connected with a bottom plate, the upper side of the bottom plate is fixedly connected with an electric push rod, the upper end of the electric push rod is fixedly connected with a lifting plate, the lower side of the lifting plate is fixedly connected with a fan, the upper side of the lifting plate is fixedly connected with two side plates, a mounting rod is arranged between the two side plates, the outer side of the mounting rod is fixedly connected with a cleaning roller, the outer side of the protective cover is provided with a heat dissipation hole, the outer side of the protective cover is fixedly connected with a connecting rod, the outer end of the connecting rod is fixedly connected with an annular tube, the upper side of the protective cover is fixedly connected with a fixing pipe, and the lower end of the fixing pipe is located at the inner side of the protective cover and is fixedly connected with a spray head.

[0009] Preferably, two mounting blocks are fixedly connected to the left side of the fixed plate on the right side, a rotating rod is rotatably connected between the two mounting blocks, a gear is fixedly connected to the outer side of the rotating rod, a motor is fixedly connected to the upper side of the mounting block, and the output end of the motor is fixedly connected to the upper end of the rotating rod.

[0010] Preferably, the gear is meshingly connected to the gear ring.

[0011] Preferably, an oil pump is fixedly connected to the upper side of the fixed plate, an oil delivery pipe is fixedly connected between the oil pump and the annular pipe, and a branch pipe is fixedly connected between the annular pipe and the fixed pipe.

[0012] Preferably, the guide groove is arranged in a circular ring structure.

[0013] Preferably, a slot is provided on the outer side of the side panel and the outer end of the mounting rod, an insert block is provided on the inner side of the slot, a fixing cap is fixedly connected to the outer end of the insert block, a limiting hole is provided on the outer side of the fixing cap, a side block is fixedly connected to the left side of the side panel, a limiting rod is provided on the outer side of the side block, the upper end of the limiting rod passes through the upper side of the side block and is fixedly connected to a pull plate, and a spring is fixedly connected between the pull plate and the side block.

[0014] Preferably, the insert block is adapted to fit the slot, and the limiting hole is adapted to fit the limiting rod.

[0015] Preferably, the limiting rod is slidably connected to the side block.

[0016] A circular weft knitting machine comprises any one of the above-mentioned lower needle cylinder mechanisms for lubrication and heat dissipation.

[0017] (III) Beneficial effects

[0018] The present invention provides a lubricating and heat-dissipating lower needle cylinder mechanism and a circular weft knitting machine thereof. The following beneficial effects are achieved:

[0019] 1. The bearing and protective cover are provided to protect the bearing when the lower syringe body rotates. The gear ring, gear plate, side plate, mounting rod and cleaning roller at the bottom can be used to control the rotation of the cleaning roller so that the cleaning roller can clean the fiber debris on the bearing surface to avoid affecting the use of the bearing.

[0020] 2. By providing an annular pipe, a branch pipe, a nozzle, an oil pipe and an oil pump, the nozzle can spray lubricating oil to lubricate and cool the bearing, making the lower syringe body rotate more smoothly.

[0021] 3. By providing the side plate, the insert block, the fixing cap, the pull rod and the spring, it is convenient to dismantle the cleaning roller for replacement, and it is convenient for the cleaning roller to clean the debris from the bearing next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the overall three-dimensional structure diagram of the present invention;

[0023] Figure 2 It is a cross-sectional three-dimensional structural diagram of the present invention;

[0024] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0025] Figure 4 It is a three-dimensional structural diagram of the annular tube in the present invention;

[0026] Figure 5 It is a three-dimensional structural diagram of the cleaning unit in the present invention;

[0027] Figure 6 for Figure 5 The enlarged view of point B in the middle;

[0028] Figure 7 It is a cross-sectional three-dimensional structural diagram of the cleaning roller in the present invention.

[0029] Among them, 1. lower syringe body; 2. protective cover; 3. cleaning unit; 301. fixed plate; 302. oil pump; 303. annular tube; 304. oil pipeline; 305. branch pipe; 306. fixed pipe; 307. nozzle; 308. heat dissipation hole; 309. guide groove; 310. guide block; 311. connecting rod; 312. gear ring; 313. mounting block; 314. rotating rod; 315. gear; 316. motor; 317. bottom plate; 318. electric push rod; 319. lifting plate; 320. side plate; 321. fan; 322. mounting rod; 323. cleaning roller; 324. slot; 325. plug block; 326. fixing cap; 327. limit hole; 328. limit rod; 329. side block; 330. pull plate; 331. spring; 4. bearing. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1:

[0032] like Figure 1 - Figure 6 As shown, a lubricating and heat-dissipating lower needle cylinder mechanism comprises a lower needle cylinder body 1, a bearing 4 is arranged on the outer side of the lower needle cylinder body 1, a protective cover 2 is fixedly connected to the outer side of the bearing 4, a cleaning unit 3 is arranged on the inner side of the protective cover 2, wherein the bearing 4 facilitates the rotation of the lower needle cylinder body 1 for weaving.

[0033] The cleaning unit 3 includes a fixed plate 301, which is fixedly connected to the upper sides of the left and right ends of the protective cover 2. A guide groove 309 is provided on the lower side of the protective cover 2. A guide block 310 is slidably connected to the inner side of the guide groove 309. A gear ring 312 is fixedly connected to the lower side of the guide block 310. A bottom plate 317 is fixedly connected to the lower side of the gear ring 312. An electric push rod 318 is fixedly connected to the upper side of the bottom plate 317. A lifting plate 319 is fixedly connected to the upper end of the electric push rod 318. A fan 321 is fixedly connected to the lower side of the lifting plate 319. Two side plates 320 are fixedly connected to the upper side of the lifting plate 319. A mounting rod 322 is provided between the two side plates 320. The outer side of the mounting rod 322 is fixedly connected with a cleaning roller 323, the outer side of the protective cover 2 is provided with a heat dissipation hole 308, the outer side of the protective cover 2 is fixedly connected with a connecting rod 311, the outer end of the connecting rod 311 is fixedly connected with an annular tube 303, the upper side of the protective cover 2 is fixedly connected with a fixing tube 306, the lower end of the fixing tube 306 is located on the inner side of the protective cover 2 and is fixedly connected with a nozzle 307, the guide groove 309 is arranged in a circular ring structure, the left side of the right fixing plate 301 is fixedly connected with two mounting blocks 313, the two mounting blocks 313 are rotatably connected with a rotating rod 314, the outer side of the rotating rod 314 is fixedly connected with a gear 315, the upper side of the mounting block 313 is fixedly connected A motor 316 is connected, the output end of the motor 316 is fixedly connected to the upper end of the rotating rod 314, the gear 315 is meshed with the gear ring 312, the upper side of the fixed plate 301 is fixedly connected to the oil pump 302, the oil pump 302 and the annular tube 303 are fixedly connected with the oil delivery pipe 304, the annular tube 303 and the fixed tube 306 are fixedly connected with the branch pipe 305. After the weaving is completed, the electric push rod 318 is controlled to drive the lifting plate 319 to rise, the lifting plate 319 drives the side plate 320 to move, and the side plate 320 drives the cleaning roller 323 on the mounting rod 322 to rise, so that the cleaning roller 323 contacts the bearing 4, and the surface of the cleaning roller 323 is coated with adhesive tape for convenience. The tape cleans the fiber debris. When cleaning, the motor 316 is started, the motor 316 drives the rotating rod 314 to rotate, the rotating rod 314 drives the gear 315 to rotate, the gear 315 drives the gear ring 312 to rotate, and the gear ring 312 drives the cleaning roller 323 on the side plate 320 to rotate, so that the cleaning roller 323 cleans the debris on the lower surface of the bearing 4. The upper side of the bearing 4 is protected by the protective cover 2 to avoid excessive temperature of the high-speed running bearing 4 due to a large amount of limited debris, which affects the use of the lower syringe body 1. At the same time, the fan 321 is started so that the airflow blown out by the fan 321 is on the surface of the bearing 4, so that the fiber debris on the surface of the bearing 4 is blown off, thereby increasing the cleaning effect.

[0034] When the lower syringe body 1 is in use, the oil pump 302 is started and connected to an external oil barrel to extract the oil in the barrel, and the lubricating oil is distributed to a plurality of branch pipes 305 through the oil delivery pipe 304 and the annular pipe 303, and a plurality of nozzles 307 spray the lubricating oil onto the bearing 4 through the fixed pipe 306 to lubricate the bearing 4 and cool it down, so that the lower syringe body 1 can rotate more smoothly.

[0035] Embodiment 2:

[0036] Based on the first embodiment, Figure 1 - Figure 7 As shown, a lubricating and heat-dissipating lower needle cylinder mechanism comprises a lower needle cylinder body 1, a bearing 4 is arranged on the outer side of the lower needle cylinder body 1, a protective cover 2 is fixedly connected to the outer side of the bearing 4, a cleaning unit 3 is arranged on the inner side of the protective cover 2, wherein the bearing 4 facilitates the rotation of the lower needle cylinder body 1 for weaving.

[0037] The cleaning unit 3 includes a fixed plate 301, which is fixedly connected to the upper sides of the left and right ends of the protective cover 2. A guide groove 309 is provided on the lower side of the protective cover 2. A guide block 310 is slidably connected to the inner side of the guide groove 309. A gear ring 312 is fixedly connected to the lower side of the guide block 310. A bottom plate 317 is fixedly connected to the lower side of the gear ring 312. An electric push rod 318 is fixedly connected to the upper side of the bottom plate 317. A lifting plate 319 is fixedly connected to the upper end of the electric push rod 318. A fan 321 is fixedly connected to the lower side of the lifting plate 319. Two side plates 320 are fixedly connected to the upper side of the lifting plate 319. A mounting rod 322 is provided between the two side plates 320. The outer side of the mounting rod 322 is fixedly connected with a cleaning roller 323, the outer side of the protective cover 2 is provided with a heat dissipation hole 308, the outer side of the protective cover 2 is fixedly connected with a connecting rod 311, the outer end of the connecting rod 311 is fixedly connected with an annular tube 303, the upper side of the protective cover 2 is fixedly connected with a fixing tube 306, the lower end of the fixing tube 306 is located on the inner side of the protective cover 2 and is fixedly connected with a nozzle 307, the guide groove 309 is arranged in a circular ring structure, the left side of the right fixing plate 301 is fixedly connected with two mounting blocks 313, the two mounting blocks 313 are rotatably connected with a rotating rod 314, the outer side of the rotating rod 314 is fixedly connected with a gear 315, the upper side of the mounting block 313 is fixedly connected A motor 316 is connected, the output end of the motor 316 is fixedly connected to the upper end of the rotating rod 314, the gear 315 is meshed with the gear ring 312, the upper side of the fixed plate 301 is fixedly connected to the oil pump 302, the oil pump 302 and the annular tube 303 are fixedly connected with the oil delivery pipe 304, the annular tube 303 and the fixed tube 306 are fixedly connected with the branch pipe 305. After the weaving is completed, the electric push rod 318 is controlled to drive the lifting plate 319 to rise, the lifting plate 319 drives the side plate 320 to move, and the side plate 320 drives the cleaning roller 323 on the mounting rod 322 to rise, so that the cleaning roller 323 contacts the bearing 4, and the surface of the cleaning roller 323 is coated with adhesive tape for convenience. The tape cleans the fiber debris. When cleaning, the motor 316 is started, the motor 316 drives the rotating rod 314 to rotate, the rotating rod 314 drives the gear 315 to rotate, the gear 315 drives the gear ring 312 to rotate, and the gear ring 312 drives the cleaning roller 323 on the side plate 320 to rotate, so that the cleaning roller 323 cleans the debris on the lower surface of the bearing 4. The upper side of the bearing 4 is protected by the protective cover 2 to avoid excessive temperature of the high-speed running bearing 4 due to a large amount of limited debris, which affects the use of the lower syringe body 1. At the same time, the fan 321 is started so that the airflow blown out by the fan 321 is on the surface of the bearing 4, so that the fiber debris on the surface of the bearing 4 is blown off, thereby increasing the cleaning effect.

[0038] When the lower syringe body 1 is in use, the oil pump 302 is started and connected to an external oil barrel to extract the oil in the barrel, and the lubricating oil is distributed to a plurality of branch pipes 305 through the oil delivery pipe 304 and the annular pipe 303, and a plurality of nozzles 307 spray the lubricating oil onto the bearing 4 through the fixed pipe 306 to lubricate the bearing 4 and cool it down, so that the lower syringe body 1 can rotate more smoothly.

[0039] A slot 324 is provided on the outer side of the side plate 320 and the outer end of the mounting rod 322, an insert block 325 is provided on the inner side of the slot 324, a fixing cap 326 is fixedly connected to the outer end of the insert block 325, a limiting hole 327 is provided on the outer side of the fixing cap 326, a side block 329 is fixedly connected to the left side of the side plate 320, a limiting rod 328 is provided on the outer side of the side block 329, the upper end of the limiting rod 328 passes through the upper side of the side block 329 and is fixedly connected to a pull plate 330, a spring 331 is fixedly connected between the pull plate 330 and the side block 329, the insert block 325 is adapted to be arranged in the slot 324, the limiting hole 327 is adapted to be arranged in the limiting rod 328, the limiting rod 328 is slidably connected to the side block 329, and when the cleaning is completed The staff pulls the pull plate 330, and the pull plate 330 drives the limit rod 328 to move, and the limit rod 328 is separated from the fixing cap 326, and then the plug block 325 is directly pulled out, and the mounting rod 322 and the cleaning roller 323 are disassembled to facilitate the replacement of the new cleaning roller 323. When replacing the new cleaning roller 323, the mounting rod 322 and the cleaning roller 323 are placed between the two side plates 320, and then the pull plate 330 is pulled to move the limit rod 328, and the plug block 325 is inserted into the slot 324, and then let go. At this time, the spring 331 is compressed. When released, the spring 331 drives the limit rod 328 to connect with the limit hole 327, which is convenient for limiting the fixing cap 326 and completing the installation of the cleaning roller 323.

[0040] A circular weft knitting machine comprises any one of the above-mentioned lower needle cylinder mechanisms for lubrication and heat dissipation.

[0041] Working principle: When weaving, start the oil pump 302, and under the action of the oil pipe 304, the annular pipe 303, the branch pipe 305, and the fixed pipe 306, multiple nozzles 307 spray lubricating oil on the surface of the bearing 4 to lubricate the bearing 4. When weaving is completed, start the motor 316 to control the gear 315 to rotate, and under the action of the gear ring 312 and the side plate 320, control the cleaning roller 323 to rotate, and control the electric push rod 318 to drive the cleaning roller 323 to rise, so that the cleaning roller 323 contacts the bearing 4, so that the cleaning roller 323 can clean the fiber debris on the surface of the bearing 4.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lubricating and heat dissipating lower syringe mechanism, comprising a lower syringe body (1), characterized in that: A bearing (4) is arranged on the outer side of the lower syringe body (1), a protective cover (2) is fixedly connected to the outer side of the bearing (4), and a cleaning unit (3) is arranged on the inner side of the protective cover (2); The cleaning unit (3) comprises a fixing plate (301), wherein the fixing plate (301) is fixedly connected to the upper sides of the left and right ends of the protective cover (2), a guide groove (309) is provided on the lower side of the protective cover (2), a guide block (310) is slidably connected to the inner side of the guide groove (309), a gear ring (312) is fixedly connected to the lower side of the guide block (310), a bottom plate (317) is fixedly connected to the lower side of the gear ring (312), an electric push rod (318) is fixedly connected to the upper side of the bottom plate (317), a lifting plate (319) is fixedly connected to the upper end of the electric push rod (318), and a fan is fixedly connected to the lower side of the lifting plate (319). (321), the upper side of the lifting plate (319) is fixedly connected to two side plates (320), a mounting rod (322) is arranged between the two side plates (320), the outer side of the mounting rod (322) is fixedly connected to a cleaning roller (323), the outer side of the protective cover (2) is provided with a heat dissipation hole (308), the outer side of the protective cover (2) is fixedly connected to a connecting rod (311), the outer end of the connecting rod (311) is fixedly connected to an annular tube (303), the upper side of the protective cover (2) is fixedly connected to a fixed tube (306), the lower end of the fixed tube (306) is located on the inner side of the protective cover (2) and is fixedly connected to a nozzle (307).

2. A lubricating and heat dissipating lower syringe mechanism according to claim 1, characterized in that: Two mounting blocks (313) are fixedly connected to the left side of the right fixing plate (301); a rotating rod (314) is rotatably connected between the two mounting blocks (313); a gear (315) is fixedly connected to the outer side of the rotating rod (314); a motor (316) is fixedly connected to the upper side of the mounting block (313); and an output end of the motor (316) is fixedly connected to the upper end of the rotating rod (314).

3. A lubricating and heat dissipating lower needle cylinder mechanism and circular weft knitting machine according to claim 2, characterized in that: The gear (315) is meshingly connected with the gear ring (312).

4. A lubricating and heat dissipating lower syringe mechanism according to claim 1, characterized in that: An oil pump (302) is fixedly connected to the upper side of the fixed plate (301), an oil delivery pipe (304) is fixedly connected between the oil pump (302) and the annular pipe (303), and a branch pipe (305) is fixedly connected between the annular pipe (303) and the fixed pipe (306).

5. The lubricating and heat dissipating lower syringe mechanism according to claim 1, characterized in that: The guide groove (309) is arranged in a circular ring structure.

6. A lubricating and heat dissipating lower syringe mechanism according to claim 1, characterized in that: The outer side of the side plate (320) and the outer end of the mounting rod (322) are both provided with a slot (324), the inner side of the slot (324) is provided with an insert block (325), the outer end of the insert block (325) is fixedly connected with a fixing cap (326), the outer side of the fixing cap (326) is provided with a limiting hole (327), the left side of the side plate (320) is fixedly connected with a side block (329), the outer side of the side block (329) is provided with a limiting rod (328), the upper end of the limiting rod (328) passes through the upper side of the side block (329) and is fixedly connected with a pull plate (330), and a spring (331) is fixedly connected between the pull plate (330) and the side block (329).

7. A lubricating and heat dissipating lower syringe mechanism according to claim 6, characterized in that: The insert block (325) is adapted to be arranged in a matching manner with the slot (324), and the limiting hole (327) is adapted to be arranged in a matching manner with the limiting rod (328).

8. The lubricating and heat dissipating lower syringe mechanism according to claim 6, characterized in that: The limiting rod (328) is slidably connected to the side block (329).

9. A circular weft knitting machine, characterized in that: The invention comprises the lubricating and heat-dissipating lower syringe mechanism as described in any one of claims 1 to 8.

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