Needle cylinder lifting transmission mechanism of circular knitting machine

Abstract

The utility model discloses a needle cylinder lifting transmission mechanism of a circular knitting machine, and belongs to the technical field of control and transmission of needle cylinder lifting motion in knitting equipment.The needle cylinder lifting transmission mechanism comprises a base, two sets of telescopic mechanisms and an installation bearing table are installed above the base, the two sets of telescopic mechanisms are located on the two sides of the installation bearing table, and each telescopic mechanism comprises a sliding rod and a sliding sleeve; the sliding rod is slidably connected into the sliding sleeve, a hydraulic telescopic rod is mounted at the top of the mounting bearing table, and a needle cylinder is mounted at the telescopic end of the hydraulic telescopic rod; a better fixing effect can be achieved between the sliding rod and the sliding sleeve, the needle cylinder can be effectively fixed after being lifted by the hydraulic telescopic rod to a certain distance, the situation that normal use of the needle cylinder is affected due to power supply or machine faults during equipment operation is prevented, and after fixing is completed, the needle cylinder can be effectively fixed. The workload of the hydraulic telescopic rod can be reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of the control and transmission of the lifting movement of the cylinder in knitting equipment, and particularly relates to a lifting transmission mechanism for the cylinder of a circular knitting machine. Background Art

[0002] A circular knitting machine is composed of a frame, a yarn feeding mechanism, a transmission mechanism, a lubrication and dust removal (cleaning) mechanism, an electrical control mechanism, a take-up and winding mechanism, and other auxiliary devices. The frame of the circular knitting machine consists of three feet (commonly known as the lower feet) and a circular (or square) tabletop. The lower feet are fixed by a trident below, and there are three upright columns (commonly known as the upper feet or straight feet) on the tabletop (commonly known as the large plate). A yarn rack seat is installed on the straight feet. A safety door (also known as a protection door) is installed in the gap between the three lower feet. It is required that the frame must be stable;

[0003] In the patent document with the publication number CN214496664U that has been published, an improved lifting transmission mechanism for the cylinder of a circular knitting machine is provided, including a knitting machine table, a cylinder structure, a hydraulic cylinder, an infrared rangefinder, and a limit switch. The hydraulic cylinder is vertically and fixedly arranged on the upper surface of the knitting machine table. The cylinder structure is fixedly arranged at the end of the piston rod of the hydraulic cylinder. Support sleeves are fixedly arranged on both the left and right sides of the upper surface of the knitting machine table. Support rods are slidably arranged inside the two support sleeves. The upper ends of the two support rods extend to the outside of the corresponding support sleeves and are fixedly connected to the bottom of the cylinder structure. A support plate is horizontally arranged between the two support sleeves. The two ends of the support plate are respectively fixedly connected to the barrel walls of the two support sleeves. A tightening mechanism for fixing the two support sleeves and the support rods is arranged on the upper surface of the support plate. The utility model plays a role of double support and avoids the phenomenon that the cylinder structure drops due to the failure of the hydraulic cylinder.

[0004] During the use of the above device, the teeth provided have a poor tightening effect on the support rod, and may slide and fall during long-term use or multiple up and down movements. Moreover, a shock absorption mechanism is not provided inside the support sleeve, which may damage the upper cylinder. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, this application provides a lifting transmission mechanism for the cylinder of a circular knitting machine, which overcomes the deficiencies of the prior art and aims to solve the problems that in the above device of the prior art, the teeth provided have a poor tightening effect on the support rod, and may slide and fall during long-term use or multiple up and down movements, and a shock absorption mechanism is not provided inside the support sleeve, which may damage the upper cylinder.

[0006] To achieve the above object, the present application provides the following technical solution: A knitting circular knitting machine cylinder lifting drive mechanism, including a base, above which two telescopic mechanisms and an installation and bearing platform are installed. The two telescopic mechanisms are located on both sides of the installation and bearing platform. The telescopic mechanism includes a sliding rod and a sliding sleeve. The sliding rod is slidably connected to the inside of the sliding sleeve. A hydraulic telescopic rod is installed on the top of the installation and bearing platform, and a cylinder is installed at the telescopic end of the hydraulic telescopic rod. The tops of the two sliding rods are fixedly connected to the cylinder. An installation groove is opened inside the installation and bearing platform. A bidirectional motor is installed in the middle of the installation groove. Installation rods are installed on both sides of the bidirectional motor. Screws are installed inside the two installation rods. The two screws are fixedly connected to the output end of the bidirectional motor. A socket rod is threadedly connected to the outside of the screw. A bearing rod is installed on the outside of the socket rod. Telescopic holes are opened on one side of the two sliding sleeves close to the installation and bearing platform. A limiting groove is opened on one side of the two sliding rods.

[0007] By adopting the above technical solution, by setting the hydraulic telescopic rod, during use, the cylinder can be lifted and lowered through the hydraulic telescopic rod. The set telescopic mechanism can, during use, improve the stability of the cylinder when moving up and down. The set bidirectional motor can, during use, drive the two bearing rods and socket rods to make the socket rod penetrate through the telescopic hole and be engaged with the limiting groove on one side of the sliding rod, realizing the engagement and fixation between the sliding rod and the sliding sleeve. Moreover, the bidirectional motor is located inside the installation and bearing platform and will not affect the normal operation of the hydraulic telescopic rod. Such a setting can achieve a better fixation effect between the sliding rod and the sliding sleeve, can effectively fix the cylinder after it is lifted to a certain distance by the hydraulic telescopic rod, prevent the normal use of the cylinder from being affected due to power supply or machine failure during equipment operation, and can reduce the working burden of the hydraulic telescopic rod and improve the service life of the equipment after the fixation is completed.

[0008] As a preferred technical solution of the present application, through grooves are opened inside the two sliding rods, and abutting grooves are opened on one side of the two sliding sleeves far from the telescopic holes. The two socket rods are sleeved on the outside of the two screws.

[0009] By adopting the above technical solution, by setting the through grooves, during use, after the bidirectional motor rotates the screw to move the socket rod close to the inside of the limiting groove, the socket rod sleeved with the bearing rod will continue to move into the inside of the sliding sleeve, penetrate through the through groove and enter the inside of the abutting groove. Such a setting can achieve the effect of further strengthening the sliding rod inside the sliding sleeve, enhancing the safety of equipment use. When the position needs to be adjusted again, the socket rod can be moved out of the through groove by rotating the screw.

[0010] As a preferred technical solution of the present application, two sets of stabilizing rods are installed above the base, and the tops of the two sets of stabilizing rods are fixedly connected to the bottom of the syringe barrel.

[0011] By adopting the above technical solution, by setting the stabilizing rods, when in use, the force on the bottom of the syringe barrel can be made more uniform, preventing the syringe barrel from shifting to one side during operation, and effectively improving the stability of the device operation.

[0012] As a preferred technical solution of the present application, hydraulic buffers are installed at the inner bottoms of the two sets of sliding sleeves, and the tops of the two sets of hydraulic buffers are slidably connected to the inside of the sliding sleeves.

[0013] By adopting the above technical solution, by setting the hydraulic buffers, when in use, the sudden drop of the sliding rod can be prevented from causing damage through the provided hydraulic buffers, providing a buffering effect for it, and effectively improving the practicality of the device.

[0014] As a preferred technical solution of the present application, two sets of limiting blocks are arranged inside the installation groove, the two sets of limiting blocks are located on both sides of the bidirectional motor, and the limiting blocks are located above the screw rod.

[0015] By adopting the above technical solution, by setting the limiting blocks, when in use, the position of the bearing rod can be limited, and the bearing rod and the socket rod can be aligned through the limiting blocks during the process of retracting the socket rod, which is convenient for next use.

[0016] As a preferred technical solution of the present application, displacement sensors are installed above the inner parts of the two sets of sliding sleeves, and the displacement sensors are electrically connected to both the hydraulic telescopic rod and the bidirectional motor.

[0017] By adopting the above technical solution, by setting the displacement sensors, when in use, the height of the up-and-down movement of the syringe barrel can be effectively detected, enabling the staff to obtain more accurate height data when judging the up-and-down movement of the syringe barrel, making it more convenient for the staff to operate the device, and effectively improving the practicality of the device.

[0018] As a preferred technical solution of the present application, dust-proof scraping rings are installed on the tops of the two sets of sliding sleeves, and the size of the dust-proof scraping rings is correspondingly set with the diameter of the sliding rod.

[0019] By adopting the above technical solution, by setting the dust-proof scraping rings, when in use, the dust on the outside of the sliding rod can be cleaned, preventing it from being brought into the inside of the sliding sleeve to erode the inside of the sliding sleeve, and improving the service life of the device.

[0020] Advantages of the present application:

[0021] 1. By setting a hydraulic telescopic rod, during use, the syringe barrel can be lifted and lowered through the hydraulic telescopic rod. The set telescopic mechanism can ensure the stability of the syringe barrel during up and down movement during use. The set bidirectional motor can drive two groups of carrier rods and socket rods during use to make the socket rod penetrate the telescopic hole and be clamped with the limit groove on one side of the sliding rod, realizing the clamping and fixing between the sliding rod and the sliding sleeve. Moreover, the bidirectional motor is located inside the installation carrier platform, which will not affect the normal operation of the hydraulic telescopic rod. Such a setting can achieve a better fixing effect between the sliding rod and the sliding sleeve, and can effectively fix the syringe barrel after the hydraulic telescopic rod lifts it to a certain distance, preventing the normal use of the syringe barrel from being affected due to power supply or machine failure during equipment operation. After the fixing is completed, the working burden of the hydraulic telescopic rod can be reduced, and the service life of the equipment can be extended.

[0022] 2. By setting a through groove, during use, after the bidirectional motor rotates the screw rod to make the socket rod approach the inside of the limit groove, the socket rod sleeved on the carrier rod will continue to move into the inside of the sliding sleeve, penetrate the through groove and enter the inside of the abutting groove. Such a setting can achieve the effect of further strengthening the sliding rod inside the sliding sleeve, enhancing the safety of equipment use. When the position needs to be adjusted again, the socket rod can be removed from the inside of the through groove by rotating the screw rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the overall structural schematic diagram of the present application;

[0024] Figure 2 is the sectional structural schematic diagram of the present application;

[0025] Figure 3 is Figure 2 the structural schematic diagram at position A in

[0026] Figure 4 is Figure 2 the structural schematic diagram at position B in

[0027] In the figure: 1, base; 2, installation carrier platform; 201, installation groove; 3, hydraulic telescopic rod; 4, syringe barrel; 5, telescopic mechanism; 501, sliding rod; 502, sliding sleeve; 503, limit groove; 504, through groove; 505, abutting groove; 506, telescopic hole; 507, displacement sensor; 508, hydraulic buffer; 6, bidirectional motor; 601, installation rod; 602, screw rod; 603, socket rod; 604, carrier rod; 605, limit block; 7, stabilizing rod; 8, dust scraping ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0029] Referring to Figures 1-3 , a lifting transmission mechanism for a knitting circular knitting machine cylinder, including a base 1, two sets of telescopic mechanisms 5 and an installation and bearing platform 2 are installed above the base 1. The two sets of telescopic mechanisms 5 are located on both sides of the installation and bearing platform 2. The telescopic mechanism 5 includes a sliding rod 501 and a sliding sleeve 502. The sliding rod 501 is slidably connected to the inside of the sliding sleeve 502. A hydraulic telescopic rod 3 is installed on the top of the installation and bearing platform 2. A cylinder 4 is installed at the telescopic end of the hydraulic telescopic rod 3. The tops of the two sliding rods 501 are fixedly connected to the cylinder 4. An installation groove 201 is opened inside the installation and bearing platform 2. A bidirectional motor 6 is installed in the middle of the installation groove 201. Installation rods 601 are installed on both sides of the bidirectional motor 6. Screws 602 are installed inside the two installation rods 601. The two screws 602 are fixedly connected to the output end of the bidirectional motor 6. A socket rod 603 is threadedly connected to the outside of the screw 602. A bearing rod 604 is installed on the outside of the socket rod 603. Telescopic holes 506 are opened on one side of the two sliding sleeves 502 close to the installation and bearing platform 2. Limiting grooves 503 are opened on one side of the two sliding rods 501. Two sets of stabilizing rods 7 are installed above the base 1. The tops of the two sets of stabilizing rods 7 are fixedly connected to the bottom of the cylinder 4.

[0030] By setting the hydraulic telescopic rod 3, during use, the cylinder 4 can be lifted and lowered through the hydraulic telescopic rod 3. By setting the telescopic mechanism 5, during use, the stability of the cylinder 4 during up and down movement can be improved. By setting the bidirectional motor 6, during use, the socket rod 603 can be passed through the telescopic hole 506 and engaged with the limiting groove 503 on one side of the sliding rod 501 by driving the two bearing rods 604 and the socket rod 603, realizing the clamping and fixation between the sliding rod 501 and the sliding sleeve 502. Moreover, the bidirectional motor 6 is located inside the installation and bearing platform 2 and will not affect the normal operation of the hydraulic telescopic rod 3. Such a setting can achieve a better fixation effect between the sliding rod 501 and the sliding sleeve 502, and can effectively fix the cylinder 4 after the hydraulic telescopic rod 3 lifts the cylinder 4 to a certain distance, preventing the normal use of the cylinder 4 from being affected due to power supply or machine failure during equipment operation. After the fixation is completed, the working burden of the hydraulic telescopic rod 3 can be reduced, and the service life of the equipment can be extended. By setting the stabilizing rods 7, during use, the force on the bottom of the cylinder 4 can be made more uniform, preventing the cylinder 4 from shifting to one side during operation, effectively improving the stability of the device operation.

[0031] Reference Figure 1 Figure 1 , through slots 504 are provided inside both sets of sliding rods 501. On the side of both sets of sliding sleeves 502 away from the telescopic holes 506, abutment grooves 505 are provided. Both sets of socket rods 603 are sleeved outside both sets of screw rods 602. Hydraulic buffers 508 are installed at the bottom inside both sets of sliding sleeves 502. The tops of both sets of hydraulic buffers 508 are slidably connected to the inside of the sliding sleeves 502. Displacement sensors 507 are installed above the inside of both sets of sliding sleeves 502. The displacement sensors 507 are electrically connected to both the hydraulic telescopic rod 3 and the bidirectional motor 6. By providing the through slots 504, during use, after the bidirectional motor 6 rotates the screw rod 602 to move the socket rod 603 close to the inside of the limit groove 503, the socket rod 603 sleeved with the carrier rod 604 will continue to move into the inside of the sliding sleeve 502, penetrate through the through slot 504 and enter the inside of the abutment groove 505. This setting can achieve the effect of further strengthening the sliding rod 501 inside the sliding sleeve 502, enhancing the safety of equipment use. When the position needs to be adjusted again, the socket rod 603 can be removed from the inside of the through slot 504 by rotating the screw rod 602. By providing the hydraulic buffers 508, during use, the provided hydraulic buffers 508 can prevent the sudden drop of the sliding rod 501 from causing damage, provide a buffering effect for it, and effectively improve the practicality of the device. By providing the displacement sensors 507, during use, the height of the up and down movement of the syringe 4 can be effectively detected, enabling the staff to obtain more accurate height data when judging the up and down movement of the syringe 4, making it more convenient for the staff to operate the device, and effectively improving the practicality of the device.

[0032] Reference Figure 1 Figure 1 , two sets of limit blocks 605 are provided inside the installation groove 201. The two sets of limit blocks 605 are located on both sides of the bidirectional motor 6, and the limit blocks 605 are located above the screw rod 602. By providing the limit blocks 605, during use, the position of the carrier rod 604 can be limited. During the process of retracting the socket rod 603, the carrier rod 604 and the socket rod 603 can be aligned through the limit blocks 605, facilitating next use. Dust scraping rings 8 are installed on the tops of both sets of sliding sleeves 502. The size of the dust scraping rings 8 is set corresponding to the diameter of the sliding rod 501. By providing the dust scraping rings 8, during use, the dust on the outside of the sliding rod 501 can be cleaned, preventing it from being brought into the inside of the sliding sleeve 502 and eroding the inside of the sliding sleeve 502, and improving the service life of the device.

[0033] Working principle: By setting the hydraulic telescopic rod 3, during use, the hydraulic telescopic rod 3 is used to lift and lower the syringe 4. The set telescopic mechanism 5 can ensure the stability of the syringe 4 during up and down movement during use. The set bidirectional motor 6 can drive two sets of carrier rods 604 and socket rods 603 during use, so that the socket rod 603 penetrates the telescopic hole 506 and is clamped with the limiting groove 503 on one side of the sliding rod 501, realizing the clamping and fixing between the sliding rod 501 and the sliding sleeve 502. Moreover, the bidirectional motor 6 is located inside the installation carrier platform 2 and will not affect the normal operation of the hydraulic telescopic rod 3. Such a setting can achieve a better fixing effect between the sliding rod 501 and the sliding sleeve 502, and can effectively fix the syringe 4 after the hydraulic telescopic rod 3 lifts it to a certain distance, preventing the normal use of the syringe 4 from being affected due to power supply or machine failure during equipment operation. After the fixing is completed, the working burden of the hydraulic telescopic rod 3 can be reduced, and the service life of the equipment can be extended. By setting the through groove 504, during use, after the bidirectional motor 6 rotates the screw rod 602 to move the socket rod 603 close to the inside of the limiting groove 503, the socket rod 603 sleeved with the carrier rod 604 will continue to move into the inside of the sliding sleeve 502, penetrate the through groove 504 and enter the inside of the abutting groove 505. Such a setting can achieve the effect of further strengthening the sliding rod 501 inside the sliding sleeve 502, enhancing the safety of equipment use. When the position needs to be adjusted again, the socket rod 603 can be removed from the inside of the through groove 504 by rotating the screw rod 602;

[0034] Among them, by setting the stabilizing rod 7, during use, the bottom of the syringe 4 can be more evenly stressed, preventing the syringe 4 from shifting to one side during operation, effectively improving the stability of the device operation. By setting the hydraulic buffer 508, during use, the hydraulic buffer 508 can prevent the sudden drop of the sliding rod 501 from causing damage and provide a buffering effect, effectively improving the practicality of the device;

[0035] At the same time, by setting the limiting block 605, during use, the position of the carrier rod 604 can be limited. During the process of retracting the socket rod 603, the carrier rod 604 and the socket rod 603 can be aligned through the limiting block 605, facilitating the next use;

[0036] In addition, by setting the displacement sensor 507, during use, the height of the up-and-down movement of the syringe 4 can be effectively detected, enabling the staff to obtain more accurate height data when judging the up-and-down movement of the syringe 4, making it more convenient for the staff to operate the device and effectively improving the practicality of the device. By setting the dust-proof scraping ring 8, during use, it can clean the dust on the outside of the sliding rod 501, preventing it from being brought into the inside of the sliding sleeve 502 and eroding the inside of the sliding sleeve 502, thus extending the service life of the device.

[0037] The foregoing are only the preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A circular knitting machine needle cylinder lifting transmission mechanism, comprising a base (1), characterized in that: Two groups of telescopic mechanisms (5) and a mounting platform (2) are installed above the base (1). The two groups of telescopic mechanisms (5) are located on both sides of the mounting platform (2). The telescopic mechanisms (5) include a sliding rod (501) and a sliding sleeve (502). The sliding rod (501) is slidably connected to the inside of the sliding sleeve (502). A hydraulic telescopic rod (3) is installed on the top of the mounting platform (2). A syringe (4) is installed at the telescopic end of the hydraulic telescopic rod (3). The tops of the two groups of sliding rods (501) are fixedly connected to the syringe (4). A mounting groove (201) is opened inside the mounting platform (2). A bidirectional motor (6) is installed in the middle of the mounting groove (201), mounting rods (601) are installed on both sides of the bidirectional motor (6), screw rods (602) are installed inside the two groups of mounting rods (601), the two groups of screw rods (602) are fixedly connected to the output end of the bidirectional motor (6), the external thread of the screw rod (602) is connected to a sleeve rod (603), and a bearing rod (604) is installed outside the sleeve rod (603), and telescopic holes (506) are provided on one side of the two groups of sliding sleeves (502) close to the mounting bearing platform (2), and limiting grooves (503) are provided on one side of the two groups of sliding rods (501).

2. The circular knitting machine needle cylinder lifting transmission mechanism according to claim 1, characterized in that: The two sets of sliding rods (501) are provided with through grooves (504) inside, the two sets of sliding sleeves (502) are provided with abutment grooves (505) on the sides away from the telescopic holes (506) inside, and the two sets of sleeve rods (603) are sleeved on the outside of the two sets of screw rods (602).

3. The circular knitting machine needle cylinder lifting transmission mechanism according to claim 1, characterized in that: Two groups of stabilizing rods (7) are installed above the base (1), and the tops of the two groups of stabilizing rods (7) are fixedly connected to the bottom of the syringe (4).

4. The circular knitting machine needle cylinder lifting transmission mechanism according to claim 1, characterized in that: Hydraulic buffers (508) are installed at the inner bottoms of the two groups of sliding sleeves (502), and the tops of the two groups of hydraulic buffers (508) are slidably connected to the inside of the sliding sleeves (502).

5. The circular knitting machine needle cylinder lifting transmission mechanism according to claim 1, characterized in that: Two groups of limit blocks (605) are arranged inside the installation groove (201), the two groups of limit blocks (605) are located on both sides of the bidirectional motor (6), and the limit blocks (605) are located above the screw rod (602).

6. The circular knitting machine needle cylinder lifting transmission mechanism according to claim 1, characterized in that: Displacement sensors (507) are installed on the upper parts of the two sets of sliding sleeves (502), and the displacement sensors (507) are electrically connected to the hydraulic telescopic rod (3) and the bidirectional motor (6).

7. The circular knitting machine needle cylinder lifting transmission mechanism according to claim 1, characterized in that: Dust-proof scraper rings (8) are installed on the tops of the two groups of sliding sleeves (502), and the size of the dust-proof scraper rings (8) is set corresponding to the diameter of the sliding rod (501).

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