High-precision driving mechanism of sweater knitting machine

Abstract

The utility model relates to a high-precision driving mechanism of a sweater knitting machine, and belongs to the technical field of sweater knitting machines. The high-precision driving mechanism of the sweater knitting machine comprises a driving box and a protection mechanism, a bevel gear driving assembly is installed on the inner side of the driving box, and one end of the bevel gear driving assembly is in spline connection with a driving motor; the protection mechanism comprises a protection cylinder detachably connected to one end of the driving box, the driving motor is arranged on the inner side of the protection cylinder, and exhaust ports distributed annularly are formed in the outer side of the protection cylinder; the conical air guide block concentrates heat dissipation airflow through the annular air guide channel to cover the surface of the driving motor, the conical air guide block is matched with the first dustproof net to intercept external dust, the second dustproof net seals the exhaust port after shutdown, and a dynamic heat dissipation and bidirectional dust blocking mechanism is formed. According to the design, the heat dissipation efficiency is improved through forced air cooling, dust invasion is blocked, and long-term stable operation of the motor in a complex environment is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of knitting sweater machine technology, and in particular to a high-precision drive mechanism for knitting sweater machines. Background Technology

[0002] The drive mechanism of the knitting sweater machine adopts a modular design. The motor compartment and equipment compartment achieve efficient power output through spline meshing and a two-stage bevel gear transmission. It is equipped with a dual shock absorption system to suppress high-frequency vibration and noise. Its quick-release structure allows the motor compartment and movable support to be separated independently, which facilitates quick inspection and maintenance. It has the advantages of high-precision transmission, low noise and durability, and modular easy maintenance, making it suitable for high-load continuous production needs.

[0003] Currently, a Chinese patent discloses a high-precision drive mechanism for a knitting sweater machine (authorization announcement number CN215051084U). This utility model can reduce vibration and shake in the equipment compartment and motor compartment by using a semi-ring shock-absorbing rubber block. Then, the motor compartment is further treated with a frame-shaped shock-absorbing rubber block to prevent vibration and shake. This avoids the situation where the drive precision is low due to excessive vibration. Furthermore, the motor compartment can be removed from the slot by disassembling the first fixing bolt and the third fixing bolt, which facilitates the later maintenance of the motor.

[0004] When a sweater knitting machine is running continuously, the heat generated by the motor gradually accumulates inside the sealed motor compartment. While this compartment effectively protects the motor from external environmental influences, it has limitations in terms of insufficient heat exchange efficiency. As the running time increases, the continuous rise in temperature may lead to a decrease in the motor's thermal stability, and in extreme cases, it may trigger overheat protection shutdown, thereby affecting the normal operation of the entire machine. Utility Model Content

[0005] Therefore, it is necessary to provide a high-precision drive mechanism for knitting sweaters to address the problem of poor heat dissipation performance in existing high-precision drive mechanisms that affect normal operation.

[0006] A high-precision drive mechanism for a knitting sweater machine includes: a drive box and a protective mechanism. A bevel gear drive assembly is installed inside the drive box, and a drive motor is splined to one end of the bevel gear drive assembly.

[0007] In one embodiment, the protective mechanism includes a protective cylinder detachably connected to one end of the drive box, the drive motor is disposed inside the protective cylinder, the outer side of the protective cylinder has an annularly distributed exhaust port, and a cooling fan is embedded inside the protective cylinder.

[0008] In one embodiment, a first dustproof mesh is embedded inside the protective cylinder, and the cooling fan of the first dustproof mesh faces away from the drive motor.

[0009] In one embodiment, a second dustproof mesh is embedded inside the exhaust port, and the second dustproof mesh surrounds the outside of the drive motor.

[0010] In one embodiment, a conical air guide block is fixedly connected to the inner side of the protective cylinder. The conical air guide block is disposed between the drive motor and the cooling fan, and the surface of the conical air guide block has annularly distributed air guide channels.

[0011] In one embodiment, a shock-absorbing pad is fixedly connected to one end of the conical air guide block, and one end of the shock-absorbing pad is in contact with the drive motor.

[0012] In one embodiment, a shock-absorbing sleeve is embedded in the inner side of the protective cylinder, and the shock-absorbing sleeve is fitted onto the surface of the drive motor.

[0013] In one embodiment, both the damping pad and the damping sleeve are NBR rubber and cold-rolled steel sheet composite material components.

[0014] Beneficial effects

[0015] The aforementioned high-precision drive mechanism for a knitting sweater machine features a conical air guide block that concentrates heat dissipation airflow through an annular air guide channel, covering the surface of the drive motor. This, combined with a first dustproof net to intercept external dust and a second dustproof net to seal the exhaust port after shutdown, forms a "dynamic heat dissipation + bidirectional dust blocking" mechanism. This design improves heat dissipation efficiency through forced air cooling while preventing dust intrusion, ensuring long-term stable operation of the motor in complex environments.

[0016] The shock-absorbing pads and sleeves, which are made of NBR rubber and cold-rolled steel plate composite, absorb high-frequency vibrations through the friction of rubber molecules and disperse low-frequency impacts through the steel plate, achieving full-frequency vibration reduction. The combination of radial sleeve buffer and axial pad limiter is suitable for the high torque load of knitting machines, while resisting the corrosion of oil and moisture, significantly reducing mechanical wear and extending service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 This is an explosion diagram of the protective mechanism in this utility model;

[0020] Figure 4 This is a partial explosion diagram of the protective mechanism in this utility model.

[0021] Figure label:

[0022] 100. Drive box; 200. Bevel gear drive assembly; 300. Drive motor; 400. Protective mechanism; 410. Protective cylinder; 411. Exhaust port; 420. Cooling fan; 430. First dustproof net; 440. Second dustproof net; 450. Conical air guide block; 451. Air guide channel; 460. Shock-absorbing pad; 470. Shock-absorbing sleeve. Detailed Implementation

[0023] The following is combined Figures 1-4 This invention describes a high-precision drive mechanism for a knitting sweater machine.

[0024] In one embodiment, a high-precision drive mechanism for a knitting sweater machine includes: a drive box 100 and a protective mechanism 400. A bevel gear drive assembly 200 is installed on the inner side of the drive box 100, and a drive motor 300 is splined to one end of the bevel gear drive assembly 200.

[0025] The bevel gear drive assembly 200 includes a bevel gear shaft rotatably connected to the inner bottom wall of the drive box 100. One end of the first bevel gear shaft extends through the drive box 100, and a first spline sleeve is fixedly connected to one end of the first bevel gear shaft. The installer needs to connect the first spline sleeve to the structure spline of the knitting sweater machine that needs to be driven by the drive motor 300. A second bevel gear shaft rotatably connected to the drive box 100 is meshed with the surface of the first bevel gear shaft. A second spline sleeve is fixedly connected to one end of the second bevel gear shaft, and a spline shaft fixedly connected to the drive motor 300 is inserted into the inner side of the second spline sleeve.

[0026] like Figure 2 , Figure 3 and Figure 4As shown, the protective mechanism 400 includes a protective cylinder 410 detachably connected to one end of the drive box 100. The drive motor 300 is disposed inside the protective cylinder 410. The outer side of the protective cylinder 410 has annularly distributed exhaust ports 411. A cooling fan 420 is embedded inside the protective cylinder 410. A wire hole is formed on the surface of the protective cylinder 410, and a rubber dust plug is nested inside the wire hole. The external wiring of the drive motor 300 passes through the inner side of the rubber dust plug and exits the protective cylinder 410. A first dust filter 430 is embedded inside the protective cylinder 410. The first dust filter 430 faces away from the drive motor 300. The first dust filter 430 can prevent solid impurities mixed in the cooling airflow from entering the protective cylinder 410, thus... The drive motor 300 always operates in a clean environment. A second dustproof net 440 is embedded in the inner side of the exhaust port 411. The second dustproof net 440 surrounds the outer side of the drive motor 300. The second dustproof net 440 can block impurities from entering the protective cylinder 410 when the cooling fan 420 is not running, further ensuring that the drive motor 300 always operates in a clean environment. A conical air guide block 450 is fixedly connected to the inner side of the protective cylinder 410. The conical air guide block 450 is disposed between the drive motor 300 and the cooling fan 420. The surface of the conical air guide block 450 has annularly distributed air guide channels 451, which can guide the airflow to the space between the drive motor 300 and the protective cylinder 410 to improve the heat dissipation effect of the drive motor 300.

[0027] like Figure 3 and Figure 4 As shown, a shock-absorbing pad 460 is fixedly connected to one end of the conical air guide block 450, and one end of the shock-absorbing pad 460 contacts the drive motor 300; a shock-absorbing sleeve 470 is embedded in the inner side of the protective cylinder 410, and the shock-absorbing sleeve 470 is fitted onto the surface of the drive motor 300; both the shock-absorbing pad 460 and the shock-absorbing sleeve 470 are composite materials of NBR rubber and cold-rolled steel plate. The motor damping material composed of NBR rubber and cold-rolled steel plate combines high performance and engineering practicality. NBR rubber, with its acrylonitrile content, provides excellent oil resistance, wear resistance, and aging resistance; the cold-rolled steel plate provides high rigidity support to the structure, significantly improving impact resistance and load-bearing capacity, and is suitable for high tensile and torsional scenarios. In terms of vibration damping, the friction of rubber molecules efficiently attenuates high-frequency vibrations, and the steel plate disperses low-frequency energy, forming a wide-frequency damping effect, and its hysteresis characteristics can suppress resonance. In engineering, the stamping one-piece molding process makes the structure compact and lightweight, easy to install and requires no lubrication or maintenance, and the double-layer design further extends the service life and is suitable for complex environments such as oil and moisture.

[0028] The protective sleeve 410, the drive motor 300 and the shock absorber 470 each have four interconnected insertion holes at one end. The drive box 100 has four threaded grooves at one end that are connected to the adjacent insertion holes respectively. Four bolts are inserted into the surface of the protective sleeve 410. The shanks of the bolts pass through the adjacent insertion holes in sequence and are threadedly connected to the threaded grooves. The installer can complete the installation and removal of the drive motor 300 together with the protective sleeve 410 and the drive box 100 by rotating the corresponding bolts.

[0029] Working principle: When the drive motor 300 drives the structure that needs to be driven by the drive motor 300 in the knitting sweater machine normally through the bevel gear drive assembly 200, the cooling fan 420 forms a directional airflow toward the surface of the drive motor 300 through the conical air guide block 450. The cooled airflow is discharged from the exhaust port 411, thus achieving forced air cooling.

[0030] It should be noted that the drive motor 300 and cooling fan 420 mentioned above are both devices with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the drive motor 300 and cooling fan 420 can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, which will not be elaborated here.

[0031] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-precision drive mechanism for a knitting sweater machine, characterized in that, Include: Drive box (100), the inner side of the drive box (100) is provided with bevel gear drive assembly (200), one end of the bevel gear drive assembly (200) is connected with drive motor (300) by spline; Protective mechanism (400), the protective mechanism (400) includes detachable connection on one end of drive box (100) protective cylinder (410), the drive motor (300) is arranged in the inner side of protective cylinder (410), the outer side of the protective cylinder (410) is provided with annularly distributed exhaust port (411), the inside of the protective cylinder (410) is embedded with heat dissipation fan (420).

2. The high-precision drive mechanism of a knitted underwear machine according to claim 1, characterized in that, The inside of the protective cylinder (410) is embedded with first dust screen (430), the first dust screen (430) is away from the side of drive motor (300) of heat dissipation fan (420).

3. The high-precision drive mechanism of a knitted underwear machine according to claim 1, characterized in that, The inside of the exhaust port (411) is embedded with second dust screen (440), the second dust screen (440) is surrounded on the outside of drive motor (300).

4. The high-precision drive mechanism of a knitted underwear machine according to claim 1, characterized in that, The inner side of the protective cylinder (410) is fixedly connected with conical air guide block (450), the conical air guide block (450) is arranged between drive motor (300) and heat dissipation fan (420), the surface of the conical air guide block (450) is provided with annularly distributed air guide channel (451).

5. The high-precision drive mechanism of a knitted sweater machine according to claim 4, characterized in that, One end of the conical air guide block (450) is fixedly connected with shock pad (460), one end of the shock pad (460) is in contact with drive motor (300).

6. The high-precision drive mechanism of a knitted sweater machine according to claim 5, characterized in that, The inner side of the protective cylinder (410) is embedded with shock absorbing sleeve (470), the shock absorbing sleeve (470) is sleeved on the surface of drive motor (300).

7. The high-precision drive mechanism of a knitted sweater machine according to claim 6, characterized in that, The shock pad (460) and shock absorbing sleeve (470) are all NBR rubber and cold-rolled steel plate composite components.

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