Machine head assembly for weaving machine and double-needle-cylinder knitting machine

Abstract

The machine head assembly is arranged at the top of a needle cylinder, the machine head assembly comprises an upper cover and an outer shell, the upper cover is arranged at the top of the outer shell, the outer shell wraps at least part of the structure of an air cylinder, the upper cover is arranged to be of an inverted cap-shaped structure, and the outer shell is arranged to be of a cylinder structure. The interior of the upper cover is of a hollow structure, and the lower portion of the upper cover abuts against the top of the shell. The upper cover can cover the top of the upper needle cylinder from top to bottom to prevent pollutants from falling into the needle cylinder, meanwhile, the shell wrapping the outer axial side of the upper needle cylinder is combined to play a role in wrapping and protecting the air cylinder, an external air cylinder in the prior art is adjusted into an internal air cylinder, lasting and stable work of the air cylinder is guaranteed, and a machine head part is more attractive and simpler. Meanwhile, the shell plays a role in supporting and fixing the upper cover, and the upper cover is prevented from being separated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technology field of hosiery machine, specifically, relate to a head assembly for loom and double needle cylinder knitting machine. BACKGROUND

[0002] The double needle cylinder circular knitting machine for knitting hosiery or tubular articles generally comprises two coaxially arranged needle cylinders, the upper needle cylinder is connected with the bottom end of the lower needle cylinder through a transmission shaft at a position close to the top end, and the transmission shaft drives the coaxial rotation of the upper needle cylinder and the lower needle cylinder.

[0003] The patent with the publication number CN110512344B in the prior art discloses a double needle cylinder knitting machine fixing device, in order to ensure the flatness of the fabric produced by the double needle cylinder knitting machine, a pulling device is arranged in the upper needle cylinder, a fixed sleeve is arranged on the outer portion of the upper needle cylinder close to the upper end, a tensioning device is arranged in the lower needle cylinder, and the pulling device moves downward to press the fabric tightly on the tensioning device. Different parts of the fabric are alternately pressed tightly on the tensioning bowl of the tensioning device by the pulling device, so that the fabric is prevented from accumulating in the needle cylinder and the flatness is ensured. The driving device for driving the pulling device to move up and down is arranged at a position close to the upper portion on the outer side of the upper needle cylinder. However, the driving cylinder for driving the pulling device to move up and down in the prior art is exposed, which affects the appearance of the hosiery head, and pollutants such as lint may adhere to the cylinder, affecting the long-term stable operation of the cylinder. SUMMARY

[0004] Therefore, the utility model aims at providing a head assembly and a double needle cylinder knitting machine to solve the problem that the cylinder driving device on the head assembly in the prior art is exposed, affecting the appearance and being easy to damage the cylinder.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A head assembly for a loom is arranged at the top of a needle cylinder, and the head assembly comprises an upper cover and a shell, wherein the upper cover is arranged at the top of the shell, the shell wraps at least part of the structure of the cylinder, the upper cover is arranged in a hat-shaped structure with a reverse buckle, the inside of the upper cover is arranged as a hollow structure, and the lower part of the upper cover abuts against the top of the shell.

[0007] Further, the shell is arranged in a structure with a thick bottom and a thin upper portion, the inside of the shell is also arranged as a hollow structure, a boss is arranged at the top of the shell, and the lower part of the upper cover is mounted on the boss.

[0008] Further, the shell comprises a base, a transition part and a boss, the base is arranged at the lowermost part, the transition part is arranged at the upper part of the base, the outer diameter of the transition part is smaller than that of the base, and the connecting part of the transition part and the base forms a step structure.

[0009] Further, the side wall of the transition part is provided with an opening, and the cylinder mounting plate outside the cylinder extends to the outside of the transition part through the opening, so that the cylinder is located inside the transition part.

[0010] Further, the boss is located at the upper part of the transition part, and the outer diameter of the boss is smaller than the outer diameter of the base but larger than the outer diameter of the transition part.

[0011] Further, the outer diameter of the boss is arranged to be the same as or larger than the outer diameter of the lower part of the upper cover.

[0012] Further, the head assembly further comprises a support, which is arranged at the lowermost part of the shell, and the support is located at the lower part of the shell and wraps the upper part of the upper needle cylinder and the upper part of the transmission assembly.

[0013] Compared with the prior art, the head assembly has the following advantages:

[0014] The upper cover can cover the top of the upper needle cylinder from top to bottom to prevent contaminants from falling into the needle cylinder, and the shell wrapped outside the upper needle cylinder also has a wrapping protection effect on the cylinder, so that the external cylinder in the prior art is adjusted to an internal cylinder, the durable and stable work of the cylinder is ensured, and the head part is more beautiful and simple. At the same time, the setting of the shell supports and fixes the upper cover to prevent the upper cover from being separated.

[0015] The utility model also provides a double needle cylinder knitting machine, including support frame, needle cylinder and fixed device in needle cylinder, the needle cylinder includes upper needle cylinder and lower needle cylinder, the position of upper needle cylinder close to top end and the bottom of lower needle cylinder are connected through transmission assembly, still include above described head assembly, head assembly is located in the upper part of the upper needle cylinder.

[0016] Further, a yarn feeding assembly is arranged on the side surface of the upper needle cylinder and / or the lower needle cylinder to supply yarn for knitting.

[0017] Further, the fixed device comprises a pulling assembly and a tensioning device, wherein the pulling assembly is arranged inside the upper needle cylinder, the top end of the pulling assembly extends out of the top of the upper needle cylinder, and the head assembly is arranged at the top of the upper needle cylinder to cover the top of the upper needle cylinder and the top of the pulling assembly. The double needle cylinder knitting machine has the same advantages as the above-mentioned head assembly relative to the prior art, and details are not repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the prior art double needle cylinder hosiery machine;

[0019] Figure 2 For Figure 1 Local enlarged view of A part in the middle;

[0020] Figure 3 The head assembly and the line feeding assembly are shown in the schematic view of the embodiment of the utility model;

[0021] Figure 4 The head assembly is shown in another view of the schematic view of the embodiment of the utility model.

[0022] Explanation of reference signs:

[0023] Upper cover 1, shell 2, base 21, transition part 22, boss 23, support 24, base 3, upper needle cylinder 4, line feeding assembly 5, lower needle cylinder 6, fixed cylinder 7, pulling assembly 8, air cylinder 81, air cylinder mounting plate 82, 9-upper needle cylinder mounting plate, 10-lower needle cylinder mounting plate Specific implementation

[0024] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in combination with the drawings. In addition, the directions or position relationships mentioned in the embodiments, such as “front”, “back”, “up”, “down”, “left”, “right”, “top end” and “bottom end”, refer to the directions or position relationships shown in the drawings. The term “on” refers to the support of the elements or indirect support.

[0025] It should be noted that in the description of the present application, the terms “mounting”, “connection” and “connection” should be understood broadly unless otherwise specified and limited. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected. It can be mechanically connected, or it can be electrically connected or can communicate with each other. It can be directly connected, or it can be indirectly connected through an intermediate medium. It can be the communication or interaction relationship between two elements inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] As Figures 1-4 shown, the present embodiment provides a double needle cylinder loom, which comprises a supporting frame, a needle cylinder and a fixing device located inside the needle cylinder. The supporting frame comprises a base 3 for supporting on the ground, an upper needle cylinder mounting plate 9 and a lower needle cylinder mounting plate 10 located at the upper part of the base 3. The needle cylinder comprises an upper needle cylinder 4 and a lower needle cylinder 6. The position close to the top end of the upper needle cylinder 4 and the bottom end of the lower needle cylinder 6 are connected through a transmission assembly. The transmission assembly drives the upper needle cylinder 4 and the lower needle cylinder 6 to rotate coaxially. A line feeding assembly 5 is arranged on the side of the upper needle cylinder 4 and / or the lower needle cylinder 6, which is used to supply yarn for knitting.

[0027] The fixing device comprises a pulling assembly 8 and a tensioning device, wherein the pulling assembly 8 is arranged inside the upper needle cylinder 4, and the top end of the pulling assembly 8 extends out of the top of the upper needle cylinder 4. A fixing cylinder 7 is arranged on the outer side of the top of the upper needle cylinder 4 in the circumferential direction, and the pulling assembly 8 is located inside the fixing cylinder 7. A pneumatic cylinder 81 is arranged on the outer side of the fixing cylinder 7 in the circumferential direction, and the pneumatic cylinder 81 is used to drive the pulling assembly 8 to move up and down. However, the pneumatic cylinder is exposed to the outside of the fixing cylinder 7, and the top of the pulling assembly 8 is also exposed to the outside, so that fiber lint and pollutants in the air are easy to adhere to the pneumatic cylinder or enter the inside of the upper needle cylinder 4 through the top of the pulling assembly 8 to affect the stable operation of the loom. Therefore, in order to solve the technical problem, the embodiment provides a head assembly, which is arranged on the top of the upper needle cylinder 4 to cover the top of the upper needle cylinder 4 and the top of the pulling assembly 8, so as to prevent the pollutants from falling into the inside of the upper needle cylinder.

[0028] Specifically, the head assembly comprises an upper cover 1 and a shell 2, wherein the upper cover 1 is arranged on the top of the shell 2, the shell 2 replaces the original fixing cylinder 7 and is arranged on the outer side of the original fixing cylinder 7 in the axial direction, so as to wrap at least part of the structure of the pneumatic cylinder, and the top of the upper needle cylinder forms a substantially sealed structure. The upper cover 1 of the head assembly is arranged in a structure of a hat with a reversed cap, the inside of the upper cover 1 is arranged as a hollow structure, and the lower part of the upper cover 1 abuts against the top of the shell 2.

[0029] The shell 2 is arranged in a structure of a columnar abacus with a thick bottom and a thin top, and the inside of the shell 2 is also arranged as a hollow structure. A boss 23 is arranged on the top of the shell 2, and the lower part of the upper cover 1 is mounted on the boss 23. The boss plays a supporting and fixing role for the upper cover, and also plays a guiding and limiting role for the mounting of the upper cover.

[0030] Further, the shell 2 comprises a base 21, a transition part 22 and the boss 23. The base 21 is arranged at the lowermost part, the transition part 22 is arranged on the upper part of the base 21, and the outer diameter of the transition part 22 is smaller than that of the base 21. The connecting part of the transition part 22 and the base 21 forms a stepped structure, so that the shell 2 is formed in a structure of a thin top and a thick bottom, and the inside of the shell 2 is convenient for accommodating the internal parts.

[0031] Further, the side wall of the transition part 22 is provided with an opening, and a pneumatic cylinder mounting plate 82 on the outer side of the pneumatic cylinder 81 extends out of the transition part 22 through the opening, so that the pneumatic cylinder 81 is located inside the transition part 22 and plays a protection role for the pneumatic cylinder. Meanwhile, the pneumatic cylinder mounting plate is exposed to the outside, which is convenient for the maintenance and replacement of the pneumatic cylinder.

[0032] The boss 23 is located at the upper part of the transition part 22, the outer diameter of the boss 23 is smaller than the outer diameter of the base 21 but larger than the outer diameter of the transition part 22, so that the boss 23 forms a flange extending outward in the circumferential direction, facilitating the accommodation of the lower edge of the upper cover 1. Preferably, the outer diameter of the boss 23 can be set to be the same as or larger than the outer diameter of the lower part of the upper cover 1, so as to effectively support the upper cover 1.

[0033] The head assembly described in the embodiment further comprises a support 24, which is arranged at the lowermost part of the shell 2, and the support 24 is located at the lower part of the base 21, and the support 24 wraps the upper part of the outside of the needle cylinder and the upper part of the outside of the transmission assembly, so that the top of the loom is relatively flat and beautiful.

[0034] The upper surface of the support 24 forms a platform, the base 21 is located on the platform, and the outer diameter of the base 21 is smaller than the width or the outer diameter of the support 24, and the outer contour of the support 24 is matched with the internal parts. Thus, a step is formed between the upper surface of the support 24 and the base 21.

[0035] As a part of the embodiment of the utility model, the shell 2 and the support 24 are integrally formed.

[0036] Further, the top of the thread feeding assembly 5 is connected and fixed with the side surface of the support 24, which supports and fixes the thread feeding assembly 5.

[0037] Although the utility model discloses as above, the utility model is not limited to this. Any person skilled in the art, without departing from the spirit and scope of the utility model, can make various changes and modifications, therefore the protection scope of the utility model should be the range limited by the claims.

Claims

1. A head assembly for a loom, provided at the top of a needle cylinder, characterized in that, The head assembly comprises a top cover (1) and a shell (2), wherein the top cover (1) is arranged on the top of the shell (2), the shell (2) wraps at least part of the structure of the cylinder (81), the top cover (1) is arranged as a reversed cap structure, the inside of the top cover (1) is arranged as a hollow structure, and the lower part of the top cover (1) abuts against the top of the shell (2).

2. The nose assembly of claim 1, wherein, The shell (2) is arranged as a structure with a thick bottom and a thin upper part, and the inside of the shell (2) is also arranged as a hollow structure, a boss (23) is arranged on the top of the shell (2), and the lower part of the top cover (1) is mounted on the boss (23).

3. The nose assembly of claim 1, wherein, The shell (2) comprises a base (21), a transition part (22) and a boss (23), the base (21) is arranged at the lowermost part, the transition part (22) is arranged on the upper part of the base (21), and the outer diameter of the transition part (22) is smaller than that of the base (21), and the connecting part of the transition part (22) and the base (21) forms a stepped structure.

4. The nose assembly of claim 3, wherein, An opening is arranged on the side wall of the transition part (22), and a cylinder mounting plate (82) outside the cylinder (81) extends to the outside of the transition part (22) through the opening, so that the cylinder (81) is located inside the transition part (22).

5. The nose assembly of claim 3, wherein, The boss (23) is located on the upper part of the transition part (22), and the outer diameter of the boss (23) is smaller than that of the base (21) but larger than that of the transition part (22).

6. The nose assembly of claim 3, wherein, The outer diameter of the boss (23) is arranged to be the same as or larger than that of the lower part of the top cover (1).

7. The handpiece assembly of claim 1, wherein, The head assembly further comprises a support (24), which is arranged at the lowermost part of the shell (2), and the support (24) is located on the lower part of the shell (2), and the support (24) wraps the upper part outside of the upper needle cylinder and the upper part outside of the transmission assembly.

8. A double needle cylinder knitting machine characterized in that, The head assembly comprises a support frame, a needle cylinder and a fixing device located inside the needle cylinder, the needle cylinder comprises an upper needle cylinder (4) and a lower needle cylinder (6), the upper needle cylinder (4) is connected to the bottom end of the lower needle cylinder (6) through a transmission assembly near the top end, and the head assembly of any one of claims 1 to 7 is located on the upper part of the upper needle cylinder (4).

9. Double needle cylinder knitting machine according to claim 8, characterized in that, A yarn feeding assembly (5) is arranged on the side of the upper needle cylinder (4) and / or the lower needle cylinder (6) for supplying knitting yarn.

10. The double needle cylinder knitting machine according to claim 8, characterized in that, The fixing device comprises a pulling assembly (8) and a tensioning device, wherein the pulling assembly (8) is arranged inside the upper needle cylinder (4), the top end of the pulling assembly (8) extends out of the top of the upper needle cylinder (4), and the head assembly is arranged on the top of the upper needle cylinder (4) to cover the top of the upper needle cylinder (4) and the top of the pulling assembly (8).

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