Upper machine head rotating device

Abstract

The utility model relates to an upper machine head rotating device, in particular to an upper needle cylinder, the upper needle cylinder is arranged above a lower needle cylinder, and the upper needle cylinder is driven by a transfer seat to rotate relative to the lower needle cylinder; wherein one end of the transfer seat is provided with the upper needle cylinder, the other end of the transfer seat comprises a section of arc-shaped sawtooth part, the sawtooth part is linked with a gear, and the gear is driven by a motor assembly; the motor assembly comprises an independent motor and a reduction gearbox. After the scheme is adopted, the transmission structure of the double-needle-cylinder weaving machine is simplified, and the overall energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the field of double-cylinder circular knitting machines, and particularly refers to a rotating device for the upper machine head. Background Art

[0002] According to different operating modes, knitting machines are divided into warp knitting machines and weft knitting machines; generally, the weft knitting method is used for knitting socks. Existing single-cylinder sock machines and double-cylinder sock machines, among which the double-cylinder sock machine includes a double-cylinder for knitting the tubular main body of the sock, a seaming device for seaming the sock, and a transfer device (pick-up device) for transferring the tubular main body from the double-cylinder to the seaming device.

[0003] In the prior patent CN103917706A (Comparative Document 1), a "double-cylinder circular knitting machine for producing tubular knitted fabric parts, especially for knitted sock parts or the like" is disclosed. It mainly includes an upper cylinder, a lower cylinder for knitting the tubular part of the sock, and an actuating device. Paragraphs 0048-53 of the specification disclose that "when it is desired to laterally move the upper cylinder 8 relative to the axis 4 of the lower cylinder 5, after first stopping the main motor 10, the first fluid-operated cylinder 28 is actuated, causing the cooperation of the movable key 20 and the groove 21, and then the second fluid-operated cylinder 33 is actuated to disengage the pin 30 from the first seat 32. In this state, regarding the rotation about the axis 12 of the main shaft 11, the upper cylinder 8 is integral with the arm 13, and regarding the rotation about the same axis 12 of the main shaft 11, the arm 13 is no longer locked relative to the cylinder 6...." (The above markings are the reference numerals of Comparative Document 1, not the reference numerals of the present utility model).

[0004] That is, in the prior art, for driving the upper cylinder and the lower cylinder to knit and driving the upper cylinder to rotate, generally, the same main motor is used for driving, and a locking device is supplemented for functional switching.

[0005] However, in the above structure, the main motor has to drive the cylinder to rotate for knitting and drive the entire upper machine head to rotate. The power required by the motor is large, the transmission structure is relatively complex, and the energy consumption is high.

[0006] Therefore, the inventor of the present case conducts further research and develops a rotating device for the upper machine head, and this case is thus generated. Content of the Utility Model

[0007] The purpose of the utility model is to provide a rotating device for the upper machine head, which simplifies the transmission structure of the double-cylinder knitting machine and reduces the overall energy consumption.

[0008] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0009] An upper machine head rotating device comprises an upper needle cylinder, the upper needle cylinder is arranged above the lower needle cylinder, and the upper needle cylinder is driven by a transfer seat to realize rotation relative to the lower needle cylinder;

[0010] Among them, one end of the transfer seat is provided with the above-mentioned upper syringe, and the other end includes a circular arc-shaped serrated portion, which is linked to a gear, and the gear is driven by a motor assembly; the motor assembly includes an independent motor and a reduction box.

[0011] Compared with the prior art, the above technical solution changes the power for driving the upper syringe to rotate from being provided by the main motor to being driven by an external motor assembly. Since the motor assembly is external, its maintenance is more convenient, and the reduction gearbox can ensure the fast and stable rotation of the transfer seat. The power is much smaller than that of the main motor, and the internal components used for switching the lock can be omitted.

[0012] Furthermore, the reduction ratio of the reduction box is 1:16.

[0013] If the reduction ratio of the reduction box is too small, the torque will be insufficient, and if the reduction ratio is too large, the machine head will rotate slowly.

[0014] Furthermore, the transfer seat is arranged on the main shaft, the sawtooth portion is arranged on the arc-shaped side outside the transfer seat, and the surface where the continuous arc segment formed by the sawtooth portion is located is perpendicular to the main shaft.

[0015] Furthermore, the gear is relatively located above the independent motor, and the motor assembly is arranged on the bracket.

[0016] Furthermore, a positioning device is also provided on the side of the transfer seat. When the transfer seat is rotated into place, the positioning device sends a signal to the independent motor to stop the transfer seat from rotating.

[0017] Furthermore, the positioning device includes a latch slot and a positioning pin, wherein two latch slots are provided, and the positioning pin is provided on the side of the transfer seat and rotates along with the transfer seat.

[0018] Furthermore, a signal receiver is arranged at the bottom of the latch slot.

[0019] The signal receiver is used to detect whether the positioning pin falls into the pin slot.

[0020] When the transfer seat is rotated into place, the latch is inserted into the latch slot to lock the transfer seat.

[0021] After adopting the above scheme, the utility model has the following advantages compared with the prior art:

[0022] The transmission components for rotating the upper needle cylinder are simplified, the energy consumption when rotating the upper needle cylinder is reduced, and since the independent motor is located outside the machine body, it is more convenient for inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is one of the schematic diagrams of the present utility model (the upper and lower needle cylinders are not separated);

[0024] Figure 2 It is the second schematic diagram of the present utility model (the upper and lower needle cylinders are not separated);

[0025] Figure 3 It is the schematic diagram after the separation of the upper and lower needle cylinders;

[0026] Label description

[0027] Transfer seat 1, straight-tooth arc rack 11, upper needle cylinder 2, lower needle cylinder 3,

[0028] Motor assembly 4, gear 41, column 5, positioning pin 6, pin slots (61, 62),

[0029] Spindle 7, grasping device 8. Specific implementation manner

[0030] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] The present utility model is mainly an improvement based on the prior patent CN103917706A, that is, the working principles of the upper needle cylinder 2, the lower needle cylinder 3, and the grasping device 8 involved therein are all prior arts.

[0032] The main improvement point of the present utility model is that, as Figures 1-3 shown:

[0033] An upper head rotating device includes a transfer seat 1. One end of the transfer seat 1 is provided with an upper needle cylinder 2, and the other end is linked with the spindle 7; in this case, the rotation of the transfer seat 1 is not driven by the main motor, but by providing a section of straight-tooth arc rack 11 outside the transfer seat 1. The length of the straight-tooth arc rack 11 is consistent with the rotation path of the upper needle cylinder 2; the straight-tooth arc rack 11 is linked with a gear 41, and the gear 41 is driven to rotate by the motor assembly 4, that is, when the independent motor in the motor assembly converts the torque through the speed reducer, according to its rotation direction, the forward and reverse rotation of the gear 41 is realized, so that the straight-tooth arc rack 11 moves relative to the gear 41, thereby realizing the rotation of the transfer seat 1. Preferably, the reduction ratio of the speed reducer is 1:16.

[0034] A positioning pin 6 is further provided on the transfer seat 1. The positioning pin follows the movement of the transfer seat 1, and at both ends of the movement track of the positioning pin, at the corresponding positions of the column 5, pin slots (61, 62) are provided. Signal receivers are provided at the bottoms of the pin slots (61, 62), and the signal receivers are used to detect whether the positioning pin falls into the pin slots.

[0035] That is, when knitting the tubular main body of the sock, the upper knitting cylinder 2 and the lower knitting cylinder 3 are on the same axis; after the knitting of the sock main body is completed, driven by the motor assembly 4, the transfer seat 1 drives the upper knitting cylinder 2 to turn away, and the gripping device 8 moves to the position of the lower knitting cylinder 3 to remove the sock main body and prepare for seam knitting; before or after the movement of the moving seat, positioning is carried out through the positioning pins.

[0036] The above are only specific embodiments of the present invention. At the same time, words such as "upper, lower, left, right, middle" involved in the present invention are only for reference and are not absolutely limited. Any non-substantive modification using the present invention shall fall within the scope of infringement of the protection scope of the present invention.

Claims

1. A headstock rotating device, characterized in that: It includes an upper cylinder which is arranged above a lower cylinder, and the upper cylinder is driven by a transfer seat to rotate relative to the lower cylinder; Wherein, one end of the transfer seat is provided with the aforementioned upper cylinder, and the other end includes an arc-shaped serrated part which is linked with a gear, and the gear is driven by a motor assembly; the motor assembly includes an independent motor and a reduction box.

2. The upper head rotation device according to claim 1, characterized in that: The reduction ratio of the reduction box is 1:15 to 1:

25.

3. The upper head rotating device according to claim 1, characterized in that: The transfer seat is arranged on the main shaft, the serrated part is arranged on the arc-shaped side outside the transfer seat, and the plane where the continuous arc segment formed by the serrated part is located is perpendicular to the main shaft.

4. A head rotation device according to claim 1, characterized in that: The gear is relatively located above the independent motor, and the motor assembly is arranged on the bracket.

5. The upper head rotating device according to claim 1, characterized in that: A positioning device is also arranged on the side of the transfer seat. When the transfer seat rotates in place, the positioning device sends a signal to the independent motor to stop the rotation of the transfer seat.

6. The upper head rotating device according to claim 5, characterized in that: The positioning device includes a pin slot and a positioning pin. There are two pin slots, and the positioning pin is arranged on the side of the transfer seat and rotates together with the transfer seat.

7. The upper head rotation device according to claim 6, characterized in that: A signal receiver is arranged at the bottom of the pin slot.

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