Positioning structure of needle cylinder of circular weft knitting machine

Abstract

The utility model belongs to the technical field of circular weft knitting machines, and discloses a positioning structure of a needle cylinder of a circular weft knitting machine, which comprises a needle cylinder main body, a cross plate arranged in the needle cylinder main body, a plurality of needle grooves arranged on the needle cylinder main body, and crochet needles arranged in the needle grooves, the side, close to the machine table, of the cross plate is connected with a positioning plate through a positioning adjusting mechanism, a plurality of positioning holes are formed in the positioning plate, and the positioning holes are arranged in an annular array mode. According to the positioning structure of the needle cylinder of the circular weft knitting machine, through the arrangement of the positioning adjusting mechanism, by means of extrusion of the extrusion assembly and the abutting effect between the conical rod and the conical hole, steering adjustment of the needle cylinder main body and limiting after steering are achieved, and therefore the use stability of the needle cylinder main body is guaranteed, and meanwhile the working efficiency of the needle cylinder main body is improved. The convenience of positioning and adjusting the needle cylinder body is improved, multiple bolts do not need to be disassembled for multiple times, and therefore the flexibility of positioning, adjusting and using of the needle cylinder body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circular knitting machines, in particular to a positioning structure for a needle cylinder of a circular knitting machine. Background Art

[0002] A circular knitting machine has a needle-supporting element called a "needle cylinder". The needle cylinder is mounted to a fixed structure (or bottom frame) of the circular knitting machine and can rotate around its own central axis. The needle cylinder also has a plurality of "needle channels" (i.e., vertical bases), which are parallel to the central axis of the needle cylinder, are present on the outer surface of the needle cylinder and extend around the entire needle cylinder. Each needle channel removably accommodates a corresponding needle of the knitting machine, so that the needle can be optionally moved in each needle channel and cooperate with a knitting head element for fabric production. Each needle channel not only accommodates a needle, but also usually a control element, such as a selector under the needle.

[0003] The needle cylinder is usually installed on the machine through bearings and shafts and fixed with bolts for alignment. After the needle cylinder is installed or replaced, initial setup and calibration are usually required to ensure the correct positioning of the needle cylinder. This includes adjusting the angle and other position parameters of the needle cylinder to ensure that they can accurately cooperate with components such as needles and yarn guides during the knitting process. The fixed connection in the form of bolts requires the bolts to be disassembled multiple times when the needle cylinder is positioned and adjusted, which affects the efficiency of the positioning and adjustment of the needle cylinder. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a positioning structure for a needle cylinder of a circular knitting machine.

[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical scheme: a positioning structure of a needle cylinder of a circular knitting machine, including a needle cylinder main body, a plurality of needle grooves are opened on the needle cylinder main body, each of the needle grooves is provided with a crochet needle, and also includes a cross plate arranged in the needle cylinder main body, the side of the cross plate close to the machine is connected to the positioning plate through a positioning adjustment mechanism, the positioning plate is provided with a plurality of positioning holes, and each of the positioning holes is arranged in a circular array.

[0006] By adopting the above technical solution, it is easy to achieve the positioning and installation of the syringe body.

[0007] Furthermore, the positioning and adjustment mechanism includes a fixed rod fixedly connected to the cross plate, the fixed rod is provided with an adjustment cavity, the adjustment cavity is provided with a conical hole at one end close to the machine, an adjustment rod is slidably connected in the adjustment cavity, a conical rod is fixedly connected to one end of the adjustment rod close to the machine, the other end of the conical rod is connected to the positioning plate through a connecting rod, the conical rod is matched with the conical hole, and an extrusion assembly for extruding the conical rod is provided in the adjustment cavity.

[0008] By adopting the above technical solution, while ensuring the stability of the syringe body in use, the convenience of positioning and adjusting the syringe body is improved, and there is no need to disassemble multiple bolts multiple times, thereby increasing the flexibility of positioning and adjusting the syringe body.

[0009] Furthermore, the surface of the tapered rod is polished.

[0010] By adopting the above technical solution, the surface roughness of the tapered rod is improved, thereby ensuring that the contact between the tapered rod and the tapered hole is more uniform and tight.

[0011] Furthermore, the extrusion assembly is an extrusion spring, one end of the extrusion spring is connected to the bottom wall of the adjustment cavity, and the other end of the extrusion spring is connected to the adjustment rod through a rotating assembly.

[0012] By adopting the above technical solution, after the positioning and adjustment of the syringe body is completed, the tapered rod and the tapered hole will be abutted against each other under the elastic action of the extrusion spring.

[0013] Furthermore, the rotating assembly includes a rotating hole opened on the end surface of the adjusting rod, a circular plate is rotatably connected in the rotating hole, and the other end of the extrusion spring is connected to the circular plate.

[0014] By adopting the above technical solution, the extrusion spring will not be deformed during the process of rotating and adjusting the syringe body.

[0015] Furthermore, a buffer assembly is provided in the regulating chamber for buffering the syringe body when it is reset. The buffer assembly includes a buffer tube fixedly connected to the bottom wall of the regulating chamber, a buffer rod is slidably connected to the buffer tube, one end of the buffer rod is connected to a circular plate, and the other end of the buffer rod is fixedly connected to a buffer plate. The buffer tube is filled with damping fluid.

[0016] By adopting the above technical solution, vibration of the syringe body caused by excessive elastic force of the extrusion spring is avoided, thereby improving the safety of adjusting the syringe body.

[0017] Furthermore, the buffer plate is provided with five buffer holes, and the damping fluid passes through the five buffer holes.

[0018] By adopting the above technical solution, a damping buffer mechanism is formed.

[0019] Furthermore, the extrusion spring is sleeved on the side wall of the buffer tube.

[0020] By adopting the above technical solution, interference with the compression of the extrusion spring is avoided.

[0021] In summary, the utility model has the following beneficial effects:

[0022] The positioning structure of the needle cylinder of the circular knitting machine in the present application realizes the steering adjustment of the needle cylinder body and the limiting of the position after steering by setting the positioning adjustment mechanism and utilizing the extrusion of the extrusion assembly and the counteraction between the tapered rod and the tapered hole, thereby ensuring the stability of the needle cylinder body in use and improving the convenience of positioning and adjusting the needle cylinder body, without the need to disassemble multiple bolts multiple times, thereby increasing the flexibility of the positioning and adjustment of the needle cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0024] Figure 2 It is a schematic cross-sectional structure diagram of an embodiment of the utility model;

[0025] Figure 3 It is a schematic diagram of the internal structure of the positioning adjustment mechanism of an embodiment of the utility model;

[0026] Figure 4 yes Figure 3 A magnified schematic diagram of center A.

[0027] In the figure: 101, syringe body; 102, needle groove; 103, hook needle; 2, cross plate; 3, positioning plate; 4, positioning hole; 501, adjustment cavity; 502, tapered hole; 503, adjustment rod; 504, tapered rod; 505, connecting rod; 506, fixing rod; 6, extrusion spring; 701, rotating hole; 702, round plate; 801, buffer tube; 802, buffer plate; 803, buffer rod; 804, buffer hole. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0029] Example 1

[0030] See also Figure 1-Figure 4 , a positioning structure of a needle cylinder of a circular knitting machine shown in the figure, comprising a needle cylinder body 101, a plurality of needle grooves 102 are provided on the needle cylinder body 101, a hook needle 103 is provided in each needle groove 102, and a cross plate 2 is arranged in the needle cylinder body 101, a side of the cross plate 2 close to the machine is connected to a positioning plate 3 through a positioning adjustment mechanism, a plurality of positioning holes 4 are provided on the positioning plate 3, and each positioning hole 4 is arranged in a ring array;

[0031] It should be noted here that the positioning plate 3 and the positioning hole 4 are provided to facilitate the positioning and installation of the syringe body 101 .

[0032] See also Figure 3 and Figure 4 The positioning adjustment mechanism shown in the figure includes a fixed rod 506 fixedly connected to the cross plate 2, the fixed rod 506 is provided with an adjustment cavity 501, the end of the adjustment cavity 501 close to the machine is provided with a tapered hole 502, an adjustment rod 503 is slidably connected in the adjustment cavity 501, the end of the adjustment rod 503 close to the machine is fixedly connected with a tapered rod 504, the other end of the tapered rod 504 is connected to the positioning plate 3 through a connecting rod 505, the tapered rod 504 is matched with the tapered hole 502, and an extrusion component for extruding the tapered rod 504 is provided in the adjustment cavity 501;

[0033] It should be noted here that: through the setting of the positioning adjustment mechanism, the extrusion of the extrusion assembly and the offset between the tapered rod 504 and the tapered hole 502 are utilized to realize the steering adjustment of the syringe body 101 and the limiting after steering, thereby ensuring the stability of the use of the syringe body 101 while improving the convenience of positioning adjustment of the syringe body 101, without the need to disassemble multiple bolts multiple times, thereby increasing the flexibility of the positioning adjustment of the syringe body 101.

[0034] It is worth noting that: as a prior art, the specific structure and working principle of the circular knitting machine needle cylinder have been mastered by people in this field, and no further details will be given here.

[0035] See also Figure 3 and Figure 4 , the surface of the tapered rod 504 shown in the figure is polished;

[0036] It should be noted here that: by polishing the surface of the tapered rod 504, the surface roughness of the tapered rod 504 is improved, thereby ensuring that the contact between the tapered rod 504 and the tapered hole 502 is more uniform and tight.

[0037] See also Figure 3 and Figure 4, the extrusion assembly shown in the figure is an extrusion spring 6, one end of the extrusion spring 6 is connected to the bottom wall of the adjustment chamber 501, and the other end of the extrusion spring 6 is connected to the adjustment rod 503 through a rotating assembly;

[0038] It should be noted here that: through the arrangement of the squeezing assembly, after the positioning and adjustment of the syringe body 101 is completed, under the elastic action of the squeezing spring 6, the tapered rod 504 and the tapered hole 502 will be abutted against each other.

[0039] See also Figure 3 and Figure 4 The rotating assembly shown in the figure includes a rotating hole 701 provided on the end surface of the adjusting rod 503, a circular plate 702 is rotatably connected in the rotating hole 701, and the other end of the extrusion spring 6 is connected to the circular plate 702;

[0040] It should be noted here that: by setting the rotating assembly, the compression spring 6 will not be deformed during the rotation adjustment of the syringe body 101.

[0041] Working principle: When installing and positioning the syringe body 101, first align the positioning hole 4 on the positioning plate 3 with the mounting hole on the machine platform, and then use bolts to fix the positioning plate 3 on the machine platform, thereby achieving the positioning installation of the syringe body 101;

[0042] After the needle cylinder body 101 is positioned and installed, when the installation angle of the needle cylinder body 101 needs to be adjusted, the needle cylinder body 101 is pressed to move it closer to the machine. During the movement of the needle cylinder body 101 closer to the machine, the tapered rod 504 will no longer abut against the tapered hole 502. At this time, the needle cylinder body 101 can be rotated and adjusted to cooperate with the knitting needles, yarn guides and other components.

[0043] After the positioning and adjustment of the syringe body 101 is completed, under the elastic action of the extrusion spring 6, the tapered rod 504 and the tapered hole 502 will be abutted against each other, so that under the tight action of the tapered rod 504 and the tapered hole 502, the adjusted syringe body 101 is limited. By adjusting the steering of the syringe body 101 and limiting the steering after the steering, the convenience of positioning and adjusting the syringe body 101 is improved while ensuring the stability of the syringe body 101. There is no need to disassemble multiple bolts multiple times, thereby increasing the flexibility of the positioning and adjustment of the syringe body 101.

[0044] Example 2

[0045] See also Figure 3 and Figure 4, this embodiment further explains Example 1, a buffer assembly for buffering the syringe body 101 when it is reset is provided in the regulating chamber 501 shown in the figure, the buffer assembly includes a buffer tube 801 fixedly connected to the bottom wall of the regulating chamber 501, a buffer rod 803 is slidably connected to the buffer tube 801, one end of the buffer rod 803 is connected to the circular plate 702, the other end of the buffer rod 803 is fixedly connected to the buffer plate 802, and the buffer tube 801 is filled with damping fluid;

[0046] It should be noted here that: through the setting of the buffer assembly, when the syringe body 101 is pressed and adjusted, the buffer plate 802 will be driven to slide in the buffer tube 801, and after the adjustment of the syringe body 101 is completed, the buffer plate 802 will slide in the buffer tube 801 under the elastic action of the extrusion spring 6, thereby forming a damping buffer mechanism in the process of the damping fluid passing through the buffer hole 804, thereby buffering the resetting of the syringe body 101, avoiding the vibration of the syringe body 101 caused by the excessive elastic force of the extrusion spring 6, thereby improving the safety of the adjustment of the syringe body 101.

[0047] See also Figure 3 and Figure 4 , the buffer plate 802 shown in the figure is provided with five buffer holes 804, and the damping fluid passes through the five buffer holes 804;

[0048] It should be noted here that: by providing the five buffer holes 804 , the damping fluid in the buffer tube 801 can only pass through the five buffer holes 804 , thereby forming a damping buffer mechanism.

[0049] See also Figure 3 and Figure 4 , the extrusion spring 6 shown in the figure is sleeved on the side wall of the buffer tube 801;

[0050] It should be noted here that by sleeve-arranging the extrusion spring 6 on the side wall of the buffer tube 801 , interference with the compression of the extrusion spring 6 is avoided.

[0051] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A positioning structure for a needle cylinder of a circular knitting machine, comprising: A syringe body (101), wherein a plurality of needle grooves (102) are provided on the syringe body (101), and a hook needle (103) is provided in each of the needle grooves (102); Its characteristics include: A cross plate (2) is arranged in the syringe body (101), and a side of the cross plate (2) close to the machine is connected to a positioning plate (3) through a positioning adjustment mechanism. A plurality of positioning holes (4) are opened on the positioning plate (3), and each of the positioning holes (4) is arranged in a ring array.

2. The positioning structure of a circular knitting machine needle cylinder according to claim 1, characterized in that: The positioning adjustment mechanism comprises a fixing rod (506) fixedly connected to the cross plate (2), the fixing rod (506) being provided with an adjustment cavity (501), the end of the adjustment cavity (501) close to the machine being provided with a conical hole (502), an adjustment rod (503) being slidably connected in the adjustment cavity (501), the end of the adjustment rod (503) close to the machine being fixedly connected with a conical rod (504), the other end of the conical rod (504) being connected to the positioning plate (3) via a connecting rod (505), the conical rod (504) being matched with the conical hole (502), and an extrusion assembly for extruding the conical rod (504) in the adjustment cavity (501).

3. The positioning structure of a circular knitting machine needle cylinder according to claim 2, characterized in that: The surface of the tapered rod (504) is polished.

4. The positioning structure of a circular knitting machine needle cylinder according to claim 2, characterized in that: The extrusion assembly is an extrusion spring (6), one end of the extrusion spring (6) is connected to the bottom wall of the adjustment chamber (501), and the other end of the extrusion spring (6) is connected to the adjustment rod (503) via a rotating assembly.

5. The positioning structure of a circular knitting machine needle cylinder according to claim 4, characterized in that: The rotating assembly comprises a rotating hole (701) formed on the end surface of the adjusting rod (503), a circular plate (702) is rotatably connected in the rotating hole (701), and the other end of the extrusion spring (6) is connected to the circular plate (702).

6. The positioning structure of a circular knitting machine needle cylinder according to claim 4, characterized in that: A buffer assembly for buffering when the syringe body (101) is reset is provided in the regulating chamber (501), and the buffer assembly comprises a buffer tube (801) fixedly connected to the bottom wall of the regulating chamber (501), a buffer rod (803) is slidably connected to the buffer tube (801), one end of the buffer rod (803) is connected to the circular plate (702), and the other end of the buffer rod (803) is fixedly connected to the buffer plate (802), and the buffer tube (801) is filled with damping fluid.

7. The positioning structure of a circular knitting machine needle cylinder according to claim 6, characterized in that: The buffer plate (802) is provided with five buffer holes (804), and the damping fluid passes through the five buffer holes (804).

8. The positioning structure of a circular knitting machine needle cylinder according to claim 6, characterized in that: The extrusion spring (6) is sleeved on the side wall of the buffer tube (801).

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