Lower needle cylinder adjusting device of knitting machine

Abstract

The utility model discloses a knitting machine lower needle cylinder adjusting device which is characterized in that an adjusting block is slidably connected in a mounting groove, the bottom of the adjusting block is connected with an adjusting mechanism, the top of the adjusting block is a stable surface inclined from left to right, a limiting sliding block is arranged on the surface of the adjusting block, and a connecting block is arranged at the bottom of a needle cylinder; the bottom of the connecting block is provided with an inclined face and a limiting sliding groove which are matched with the top of the adjusting block. The inclined stable face on the surface of the top of the adjusting block is attached to the inclined face of the bottom of the adjusting block, and the limiting sliding block is embedded into the limiting sliding groove for sliding connection. The adjusting block and the adjusting mechanism are arranged, the adjusting block can be driven by the adjusting mechanism to move left and right, so that the height of the needle cylinder is adjusted, when the adjusting block moves inwards, the connecting block is pushed upwards by the adjusting block, the needle cylinder is lifted at the moment, and when the adjusting block moves outwards, the needle cylinder is lifted and lowered. And needle cylinders with different heights do not need to be disassembled and replaced, so that the yarn tension control device is simple and rapid.

Description

Technical Field

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

[0002] A knitting machine with knitting needles mounted on a circular cylinder, used to produce cylindrical weft-knitted fabrics. This is also known as a circular knitting machine. The first single-cylinder circular knitting machine with hook needles was manufactured in the late 18th century. Circular knitting machines all have a cylindrical cylinder with needle grooves uniformly cut out on its outer circumference for accommodating the knitting needles. The needles are positioned within the grooves and are driven up and down along the grooves by a drive mechanism.

[0003] Existing circular knitting machines usually fix the needle cylinder inside the device. Sometimes it is necessary to adjust the height of the needle cylinder to maintain the tension of the yarn and facilitate knitting operations. However, in the existing technology, the entire needle cylinder is usually removed and replaced with a needle cylinder of other heights. The installation process requires repositioning and calibration, and the operation process is cumbersome, time-consuming and labor-intensive, which is quite troublesome. Utility Model Content

[0004] The purpose of the utility model is to provide a lower needle cylinder adjustment device for a knitting machine to solve the problem in the above-mentioned background technology that the height position of the needle cylinder needs to be adjusted to maintain the tension of the yarn and facilitate the knitting operation. However, in the prior art, the entire needle cylinder is usually removed and replaced with a needle cylinder of another height. The installation process requires repositioning and calibration, and the operation process is cumbersome, time-consuming and labor-intensive.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a lower needle cylinder adjustment device for a knitting machine, comprising a needle cylinder, a connecting seat being provided at the bottom of the needle cylinder, mounting grooves being provided on both sides of the connecting seat, an adjusting block being slidably connected in the mounting groove, an adjusting mechanism being connected to the bottom of the adjusting block, the top of the adjusting block being a smooth surface inclined from left to right, and a limiting slider being provided on the surface of the adjusting block, a connecting block being provided at the bottom of the needle cylinder, an inclined surface and a limiting slide matching the top of the adjusting block being provided at the bottom of the connecting block, the inclined smooth surface on the top surface of the adjusting block being in contact with the inclined surface of the bottom of the adjusting block and the limiting slide being embedded in the limiting slide for sliding connection.

[0006] Preferably, the adjustment mechanism includes a screw and a limit rod, one end of the screw is connected to a drive motor, and a threaded seat is threadedly connected to the surface, the threaded seat is fixedly connected to the connecting block at the bottom of the adjustment block through a connecting rod, and the notch in the middle of the connecting block at the bottom of the adjustment block is slidably connected to the limit rod.

[0007] Preferably, dovetail grooves are provided on both sides of the mounting groove.

[0008] Preferably, dovetail connecting blocks cooperating with the dovetail groove are provided on both sides of the adjusting block and are connected to the dovetail groove in a sliding and limiting manner through the dovetail connecting blocks.

[0009] Preferably, an L-shaped support seat is provided on the top of the connecting block, and a fixing screw is provided at the vertical end of the support seat.

[0010] Preferably, a fixing seat is fixed to the inner bottom surface wall of the syringe with a screw, and the fixing seat is installed on the surface of the support seat and is threadedly connected to the connecting groove in the middle of the fixing seat through a fixing screw rod.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] An adjusting block and an adjusting mechanism are provided, and the adjusting block can be driven to move left and right by the adjusting mechanism to adjust the height of the needle cylinder. When the adjusting block moves inward, the adjusting block pushes the connecting block upward, and the needle cylinder rises. Conversely, when the adjusting block moves outward, the needle cylinder rises and falls, thereby controlling the tension of the yarn. There is no need to disassemble and replace needle cylinders of different heights, which is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the expanded structure of the syringe and the connecting seat of the utility model;

[0015] Figure 3 This is a side view of the adjustment block of the utility model;

[0016] Figure 4 This is a front view structural diagram of the connecting block of the present invention;

[0017] Figure 5 This is a side structural diagram of the connecting block of the present invention;

[0018] Figure 6 This is an enlarged structural diagram of point A of the present invention.

[0019] In the figure: syringe 1, connecting seat 2, connecting block 11, fixing seat 12, supporting seat 111, fixing screw 112, limiting slide 113, adjusting block 21, adjusting mechanism 22, mounting groove 23, dovetail groove 24, dovetail connecting block 211, limiting slide 212, screw 221, limiting rod 222. DETAILED DESCRIPTION

[0020] In order to further explain the technical solution of the present invention, specific embodiments are described in detail below.

[0021] like Figure 1-2 As shown, in this embodiment, a lower needle cylinder adjustment device for a knitting machine includes a needle cylinder 1, a connecting seat 2 is provided at the bottom of the needle cylinder 1, and mounting grooves 23 are provided on both sides of the connecting seat 2. An adjusting block 21 is slidably connected in the mounting groove 23, and an adjusting mechanism 22 is connected to the bottom of the adjusting block 21. The top of the adjusting block 21 is a stable surface inclined from left to right, and a limiting slider 212 is provided on the surface of the adjusting block 21. A connecting block 11 is provided at the bottom of the needle cylinder 1, and an inclined surface and a limiting slide 113 are provided at the bottom of the connecting block 11 to match the top of the adjusting block 21. The inclined stable surface of the top surface of the adjusting block 21 is in contact with the inclined surface of the bottom of the adjusting block 21, and the limiting slider 212 is embedded in the limiting slide 113 for sliding connection.

[0022] The above-mentioned adjusting block 21 and adjusting mechanism 22 can drive the adjusting block 21 to move left and right through the adjusting mechanism 22, thereby realizing the height adjustment of the needle cylinder 1. When the adjusting block 21 moves inward, the adjusting block 21 pushes the connecting block 11 upward, and the needle cylinder 1 rises. Conversely, when the adjusting block 21 moves outward, the needle cylinder 1 rises and falls, thereby controlling the tension of the yarn. There is no need to disassemble and replace the needle cylinder 1 at different heights, which is simple and quick.

[0023] like Figure 2 As shown, in this embodiment, the adjustment mechanism 22 includes a screw rod 221 and a limiting rod 222. One end of the screw rod 221 is connected to a drive motor, and a threaded seat is threadedly connected to the surface. The threaded seat is fixedly connected to the connecting block at the bottom of the adjustment block 21 through a connecting rod. The notch in the middle of the connecting block at the bottom of the adjustment block 21 is slidably connected to the limiting rod 222.

[0024] The above-mentioned can drive the screw rod 221 to rotate by the driving motor on one side of the screw rod 221. When the driving motor rotates forward, the threaded seat on the surface of the screw rod 221 will move to the right, and then drive the adjusting block 21 to move inward, and the connecting block 11 drives the needle cylinder 1 to move upward for lifting adjustment. Conversely, when the driving motor is reversed, the threaded seat on the surface of the screw rod 221 will move to the left, and then drive the adjusting block 21 to move outward, and the connecting block 11 drives the needle cylinder 1 to move downward for lowering adjustment. The adjusting block 21 can drive the needle cylinder 1 to rise or fall, thereby controlling the tension of the yarn.

[0025] like Figure 3 As shown, in this embodiment, dovetail grooves 24 are provided on both sides of the mounting groove 23; dovetail connecting blocks 211 that cooperate with the dovetail groove 24 are provided on both sides of the adjustment block 21 and are connected to the dovetail groove 24 through the dovetail connecting blocks 211 for sliding limitation; the above can enable the adjustment block 21 to move stably left and right in the mounting groove 23.

[0026] like Figure 3-4As shown, in this embodiment, the top of the adjustment block 21 is a stable surface that tilts from left to right, and a limit slider 212 is provided on the surface of the adjustment block 21. The bottom of the connecting block 11 is provided with an inclined surface and a limit slot 113 that match the top of the adjustment block 21. The inclined stable surface on the top surface of the adjustment block 21 is in contact with the inclined surface on the bottom surface of the adjustment block 21, and the limit slider 212 is inserted into the limit slot 113 for sliding connection. This prevents the connecting block 11 and the adjustment block 21 from falling off, and ensures that when the adjustment block 21 moves left or right, it can stably drive the connecting block 11 to rise or fall.

[0027] like Figure 5 As shown, in this embodiment, an "L"-shaped support seat 111 is provided on the top of the connecting block 11, and a fixing screw 112 is provided at the vertical end of the support seat 111; a fixing seat 12 is fixed to the inner bottom surface wall of the syringe 1 with screws, and the fixing seat 12 is installed on the surface of the support seat 111 and is threadedly connected to the connecting groove in the middle of the fixing seat 12 through the fixing screw 112; the above-mentioned fixing seat 12 is fixed to the inner bottom surface wall of the syringe 1, and then supported by the "L"-shaped support seat 111, and then threadedly connected to the fixing seat 12 through the fixing screw 112, which plays a connecting role and is convenient for installation and disassembly.

[0028] Working principle: When the height of the needle cylinder 1 needs to be adjusted, the needle cylinder 1 is raised: the driving motor on one side of the screw rod 221 drives the screw rod 221 to rotate. When the driving motor rotates forward, the threaded seat on the surface of the screw rod 221 will move to the right, and then the adjusting block 21 will move inward, and the connecting block 11 drives the needle cylinder 1 to move upward for raising and adjusting; the needle cylinder 1 is lowered: the driving motor is reversed, and the threaded seat on the surface of the screw rod 221 will move to the left, and then the adjusting block 21 will move outward, and the connecting block 11 drives the needle cylinder 1 to move downward for lowering and adjusting, thereby controlling the tension of the yarn. There is no need to disassemble and replace the needle cylinder 1 at different heights, which is simple and quick.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A knitting machine lower needle cylinder adjustment device, comprising a needle cylinder (1), characterized in that: The bottom of the syringe (1) is provided with a connecting seat (2), and mounting grooves (23) are provided on both sides of the connecting seat (2). An adjusting block (21) is slidably connected in the mounting groove (23). The bottom of the adjusting block (21) is connected to an adjusting mechanism (22). The top of the adjusting block (21) is a stable surface inclined from left to right, and a limiting slider (212) is provided on the surface of the adjusting block (21). The bottom of the syringe (1) is provided with a connecting block (11), and the bottom of the connecting block (11) is provided with an inclined surface and a limiting slide groove (113) that match the top of the adjusting block (21). The inclined stable surface of the top surface of the adjusting block (21) is in contact with the inclined surface of the bottom of the adjusting block (21), and the limiting slider (212) is embedded in the limiting slide groove (113) for sliding connection.

2. A knitting machine lower needle cylinder adjustment device according to claim 1, characterized in that: The adjusting mechanism (22) comprises a screw rod (221) and a limiting rod (222). One end of the screw rod (221) is connected to a driving motor, and a threaded seat is threadedly connected to the surface of the screw rod. The threaded seat is fixedly connected to the connecting block at the bottom of the adjusting block (21) through a connecting rod. The notch in the middle of the connecting block at the bottom of the adjusting block (21) is slidably connected to the limiting rod (222).

3. The lower needle cylinder adjustment device for a knitting machine according to claim 1, characterized in that: Dovetail grooves (24) are provided on both sides of the installation groove (23).

4. The lower needle cylinder adjustment device for a knitting machine according to claim 3, characterized in that: Dovetail connection blocks (211) that match the dovetail groove (24) are provided on both sides of the adjustment block (21) and are connected to the dovetail groove (24) through the dovetail connection blocks (211) in a sliding and limiting manner.

5. The lower needle cylinder adjustment device for a knitting machine according to claim 4, characterized in that: An "L"-shaped support seat (111) is provided on the top of the connecting block (11), and a fixing screw (112) is provided at the vertical end of the support seat (111).

6. The lower needle cylinder adjusting device for a knitting machine according to claim 1, characterized in that: A fixing seat (12) is screwed to the inner bottom surface wall of the syringe (1), and the fixing seat (12) is installed on the surface of the support seat (111) and is threadedly connected to the connecting groove in the middle of the fixing seat (12) through the fixing screw (112).

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