Triangle positioning mechanism on circular weft knitting machine

Abstract

The utility model discloses a triangular positioning mechanism on a circular weft knitting machine. The triangular positioning mechanism comprises a first triangular block, a second triangular block, a third triangular block, a fourth triangular block and a quick positioning connecting assembly. The quick positioning connecting assembly is arranged, namely, under meshing transmission of the worm gear and the worm, the rotating strip can rotate forwards and backwards, and transverse movement transmission of the four sets of first clamping strips and second clamping strips arranged in the connecting strip can be achieved in cooperation with meshing transmission of the first rack, the gear and the second rack. The first clamping strip and the second clamping strip can be conveniently far away from or close to each other, so that the first clamping strip and the second clamping strip can be quickly positioned and clamped with the grooves formed in the left side and the right side of the positioning block, triangular blocks to be mounted can be conveniently and quickly positioned, combined and connected, and multiple triangular blocks can be conveniently positioned, combined and connected without too many tedious steps; and the overall disassembly and assembly convenience is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field related to circular weft knitting machines, in particular to a triangular positioning mechanism on a circular weft knitting machine. Background Art

[0002] A circular weft knitting machine is used to weave cotton yarn into cotton cloth in textile processing. Most of the needle cylinders used are of the insert type. Knitting needles are installed in the needle cylinder to complete the work from yarn to fabric. The knitting needles are provided with hooks at the top, and a needle tongue is hinged below the hook. When working, after the yarn enters the hook, the needle tongue closes to guide the yarn to be knitted and prevent the yarn from falling off during the knitting process.

[0003] The circular weft knitting machine triangle, also called the mountain angle or diamond angle, is one of the components of the circular weft knitting machine knitting mechanism. When the needle cylinder of the circular weft knitting machine rotates, the knitting needles on the needle cylinder move along the triangular track of the triangle to complete the knitting work.

[0004] At present, the triangle is generally installed on the triangular mounting surface of the triangle seat, and the triangle seat is installed on the base through bolts to achieve quick installation. However, today's circular weft knitting machines generally require multiple triangles to be used in combination for knitting to achieve the knitting of various textiles. During the combination of multiple triangles, generally, a threaded fastening connection method is used for quick connection and locking, and the overall quick positioning connection efficiency is relatively low. Therefore, it is necessary to adjust the triangular positioning mechanism to improve the connection and combination efficiency of multiple triangles. Summary of the Utility Model

[0005] Therefore, to solve the above deficiencies, the utility model provides a triangular positioning mechanism on a circular weft knitting machine.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A triangular positioning mechanism on a circular weft knitting machine includes a first triangular block, a second triangular block, a third triangular block and a fourth triangular block. The second triangular block, the third triangular block and the fourth triangular block are sequentially arranged on the right side of the first triangular block, and the first triangular block, the second triangular block, the third triangular block and the fourth triangular block are connected side by side. It also includes a quick positioning connection component arranged on the front side of the first triangular block, the second triangular block, the third triangular block and the fourth triangular block. The quick positioning connection component includes a connecting strip arranged on the front side of the first triangular block, the second triangular block, the third triangular block and the fourth triangular block, a connecting shell fastened to the front side of the connecting strip, a worm gear arranged inside the connecting shell, a worm meshing with the right side of the worm gear, a clamping structure installed inside the connecting strip, positioning blocks correspondingly fixed on the front side of the first triangular block, the second triangular block, the third triangular block and the fourth triangular block and connected to the inside of the connecting strip, and brackets fastened to both outer ends of the connecting strip.

[0007] Preferably, the clamping structure includes a rotating bar rotatably connected inside the connecting bar, a connecting arm connected to the outside of the rotating bar, a first clamping bar connected to the other side of the connecting arm, first racks fastened to the upper and lower ends of the first clamping bar, a gear meshing with the outside of the first rack, a second rack meshing with the outside of the gear, a second clamping bar fastened to one side of the second rack and opposite to the first clamping bar left and right, support rods inserted into the upper and lower ends of the first clamping bar and the second clamping bar, and compression springs installed on the outside of the support rods.

[0008] Preferably, there are four positioning blocks in total, and grooves are formed on both sides inside the four positioning blocks.

[0009] Preferably, the clamping structure is arranged between adjacent positioning blocks, and adjacent clamping structures are correspondingly connected.

[0010] Preferably, connecting arms are rotatably connected to both the left and right sides of the rotating bar, and the outer ends of the two connecting arms are respectively rotatably connected to the middle parts of the first clamping bar and the second clamping bar.

[0011] Preferably, four groups of the first clamping bar and the second clamping bar are installed along the inside of the connecting bar, and circular convex parts are integrally fixed in the middle of adjacent first clamping bars and second clamping bars.

[0012] Preferably, the support rods are symmetrically inserted horizontally along the upper and lower ends of the first clamping bar or the second clamping bar, and one ends of the support rods far from the first clamping bar or the second clamping bar are fixedly connected to the inside of the connecting bar.

[0013] The beneficial effects of the present utility model:

[0014] Advantage 1: By setting a quick positioning connection component in the present utility model, that is, under the meshing transmission of the worm gear and the worm, the rotating bar can rotate forward and backward, and with the meshing transmission of the first rack, the gear and the second rack, the transverse movement transmission of the four groups of first clamping bars and second clamping bars arranged inside the connecting bar can be realized. In this way, the first clamping bar and the second clamping bar can be conveniently moved away from or close to each other, so as to quickly position and clamp and connect with the grooves formed on both sides of the positioning block, enabling the triangular blocks to be installed to achieve convenient and quick positioning and combined connection, thereby achieving the advantage of convenient positioning and combined connection of multiple triangular blocks, without too many cumbersome steps, and greatly improving the overall disassembly and assembly convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a front view structural diagram of the quick positioning connection component of the present utility model;

[0017] Figure 3 is a front view internal structural diagram of the connection shell of the present utility model;

[0018] Figure 4 This is a front view structural schematic diagram of the clamping structure of the present utility model.

[0019] Among them: the first triangular block - 1, the second triangular block - 2, the third triangular block - 3, the fourth triangular block - 4, the quick positioning connection assembly - 5, the connecting bar - 51, the connecting shell - 52, the worm gear - 53, the worm - 54, the clamping structure - 55, the rotating bar - 551, the connecting arm - 552, the first clamping bar - 553, the first rack - 554, the gear - 555, the second rack - 556, the second clamping bar - 557, the support rod - 558, the compression spring - 559, the positioning block - 56, the bracket - 57. Specific embodiments

[0020] In order to further explain the technical solution of the present utility model, the following will be elaborated in detail through specific embodiments.

[0021] Please refer to Figure 1 , the present utility model provides a triangular positioning mechanism on a circular weft knitting machine, including a first triangular block 1, a second triangular block 2, a third triangular block 3 and a fourth triangular block 4. The second triangular block 2, the third triangular block 3 and the fourth triangular block 4 are sequentially arranged on the right side of the first triangular block 1, and the first triangular block 1, the second triangular block 2, the third triangular block 3 and the fourth triangular block 4 are connected side by side. It also includes a quick positioning connection assembly 5 provided on the front side of the first triangular block 1, the second triangular block 2, the third triangular block 3 and the fourth triangular block 4.

[0022] Among them, the first triangular block 1, the second triangular block 2, the third triangular block 3 and the fourth triangular block 4 are respectively a yarn bending triangle, a needle pushing triangle, a needle containing triangle and a closing triangle, so as to realize the quick composition and knitting use of the triangles of this circular weft knitting machine.

[0023] Please refer to Figures 2-3 , the quick positioning connection assembly 5 in this embodiment includes a connecting bar 51 horizontally arranged on the front side of the first triangular block 1, the second triangular block 2, the third triangular block 3 and the fourth triangular block 4. Four rectangular grooves are sequentially opened in the middle of the connecting bar 51 from left to right. The connecting shell 52 is correspondingly and firmly connected to the front side of the connecting bar 51. The worm gear 53 is rotatably connected to the middle end inside the connecting shell 52. The worm 54 is correspondingly meshed with the right side of the worm gear 53 and vertically rotatably connected to the right side of the connecting shell 52. In this way, the quick formation of meshing transmission and self - locking state is realized. The clamping structure 55 that can realize multiple - point quick positioning and clamping cooperation is installed in multiple groups inside the connecting bar 51. The positioning block 56 is correspondingly and fixedly connected to the front side of the first triangular block 1, the second triangular block 2, the third triangular block 3 and the fourth triangular block 4 and is connected to the inside of the connecting bar 51. The brackets 57 in an L - shaped frame shape are symmetrically and firmly connected to the left and right sides of the connecting bar 51 to facilitate the realization of efficient connection and support cooperation with the two - side brackets 57.

[0024] Among them, there are four positioning blocks 56 in total. Grooves are provided on both sides inside the four positioning blocks 56, ensuring that the four positioning blocks 56 can cooperate efficiently to achieve the positioning and combined connection of the first triangular block 1, the second triangular block 2, the third triangular block 3, and the fourth triangular block 4.

[0025] Please refer to Figure 4 , the clamping structure 55 in this embodiment includes a rotating bar 551 rotatably connected to the middle end inside the connecting bar 51 and connected to the middle of the worm gear 53. Connecting arms 552 symmetrically arranged on both sides of the outer end of the rotating bar 551 for push-pull transmission cooperation, a first clamping bar 553 installed on the side of the connecting arm 552 away from the rotating bar 551, a first rack 554 transversely and tightly connected to the upper and lower ends of the first clamping bar 553, a gear 555 meshing with the outer side of the first rack 554 and rotatably connected to the inside of the connecting bar 51, and a second rack 556 meshing with the outer side of the gear 555 and parallel to the upper and lower sides of the first rack 554. Thus, a stable meshing transmission state can be formed among the first rack 554, the gear 555, and the second rack 556. A second clamping bar 557 tightly connected to one side of the second rack 556 and opposite to the first clamping bar 553 left and right. Thus, to achieve the rapid formation of the positioning and clamping state, a support bar 558 transversely inserted into the upper and lower ends of the first clamping bar 553 and the second clamping bar 557 to achieve support and movement guiding cooperation, and a compression spring 559 correspondingly arranged on the outer side of the support bar 558 to provide elastic rebound support cooperation.

[0026] Specifically, the clamping structure 55 is arranged between adjacent positioning blocks 56, and adjacent clamping structures 55 are correspondingly connected, ensuring that the clamping structure 55 can quickly and synchronously position, clamp, and fasten the four positioning blocks 56 along the inside of the connecting bar 51; connecting arms 552 are rotatably connected to both the left and right sides of the rotating bar 551, and the outer ends of the two connecting arms 552 are respectively rotatably connected to the middle parts of the first clamping bar 553 and the second clamping bar 557, ensuring that the connecting arms 552 can correspondingly achieve convenient push-pull transmission of connecting one side to the first clamping bar 553 or the second clamping bar 557; four groups of the first clamping bar 553 and the second clamping bar 557 are installed along the inside of the connecting bar 51, and circular convex parts are integrally fixed in the middle of adjacent first clamping bars 553 and second clamping bars 557, ensuring that the first clamping bar 553 and the second clamping bar 557 are accurately and firmly clamped and connected to the grooves opened on both sides inside the positioning blocks 56; the support bars 558 are symmetrically transversely inserted into the upper and lower ends of the first clamping bar 553 or the second clamping bar 557, and one end of the support bar 558 away from the first clamping bar 553 or the second clamping bar 557 is fixedly connected to the inside of the connecting bar 51, ensuring that each support bar 558 can achieve efficient support and movement guiding cooperation with the corresponding first clamping bar 553 or second clamping bar 557.

[0027] The working principle is as follows:

[0028] When the quick positioning and installation of the triangular block are to be carried out, the worm 54 provided inside the quick positioning connection assembly 5 can be rotated to drive the worm gear 53 meshed on the left side of the middle part of the worm 54. In this way, the whole worm gear 53 can rotate clockwise, and correspondingly drive the rotating bar 551 connected to the rear side of the middle part. With the rotation of the rotating bar 551, the connecting arms 552 rotatably connected to the left and right sides of the rotating bar 551 will pull the corresponding first clamping strip 553 and the second clamping strip 557 on the outside, so that the first clamping strip 553 and the second clamping strip 557 move horizontally along the support rod 558 inserted transversely at the upper and lower ends. At the same time, when the first clamping strip 553 and the second clamping strip 557 move relatively, they will drive the first rack 554 or the second rack 556 transversely and firmly connected to the upper and lower sides, so that the first rack 554 or the second rack 556 cooperates with the externally meshed gear 555 to realize the transmission of another set of clamping structures 55. In this way, the four pairs of first clamping strips 553 and second clamping strips 557 provided inside the connecting strip 51 can move horizontally. In this way, the first clamping strip 553 and the second clamping strip 557 can be opened, and the positioning blocks 56 fixedly provided in the middle of the front sides of the first triangular block 1, the second triangular block 2, the third triangular block 3 and the fourth triangular block 4 can be correspondingly inserted into the four rectangular grooves opened in the middle of the connecting strip 51 to carry out the pre-positioning and plugging activities;

[0029] After the first triangular block 1, the second triangular block 2, the third triangular block 3 and the fourth triangular block 4 complete the positioning and plugging in cooperation with the positioning blocks 56 provided in the middle of the front sides, the whole worm 54 can be rotated reversely to make the worm gear 53 rotate counterclockwise. In this way, the rotating bar 551 provided in the middle end of the connecting strip 51 can rotate counterclockwise synchronously, and cooperate with the meshing transmission of the first rack 554, the gear 555 and the second rack 556 to make the four groups of first clamping strips 553 and second clamping strips 557 move horizontally closer. In this way, the four groups of first clamping strips 553 and second clamping strips 557 can be correspondingly moved into the grooves opened on the left and right sides of the positioning block 56, and cooperate with the circular convex parts integrally fixed in the middle of the first clamping strip 553 and the second clamping strip 557 to improve the clamping and fastening effect, so that the positioning connection firmness of the first triangular block 1, the second triangular block 2, the third triangular block 3 and the fourth triangular block 4 is enhanced. In this way, the four triangular blocks of the first triangular block 1, the second triangular block 2, the third triangular block 3 and the fourth triangular block 4 can achieve convenient positioning and combined connection without too many cumbersome steps, greatly improving the overall disassembly and assembly convenience;

[0030] At the same time, when the first clamping strip 553 and the second clamping strip 557 move horizontally, the compression spring 559 provided outside the support rod 558 will be correspondingly squeezed, so that when the subsequent compression spring 559 rebounds, it can provide a moving elastic pressing effect to assist in enhancing the positioning clamping and fastening effect.

[0031] The utility model provides a triangular positioning mechanism on a circular weft knitting machine. By setting a quick positioning connection component 5, that is, under the meshing transmission of a worm gear 53 and a worm 54, a rotating bar 551 can rotate forward and backward, and in cooperation with the meshing transmission of a first rack 554, a gear 555 and a second rack 556, the transverse movement transmission of four groups of first clamping bars 553 and second clamping bars 557 arranged inside a connecting bar 51 can be realized. Thus, the first clamping bar 553 and the second clamping bar 557 can be conveniently moved away from or close to each other, so as to quickly position and clamp with the grooves opened on the left and right sides of a positioning block 56, enabling the triangular block to be installed to achieve convenient and quick positioning and combined connection, thereby achieving convenient positioning and combined connection of multiple triangular blocks, without too many cumbersome steps, and greatly improving the overall disassembly and assembly convenience.

[0032] The foregoing is only a preferred example of the present utility model and is not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A triangular positioning mechanism on a circular knitting machine, comprising a first triangular block (1), a second triangular block (2), a third triangular block (3) and a fourth triangular block (4), wherein the second triangular block (2), the third triangular block (3) and the fourth triangular block (4) are sequentially arranged on the right side of the first triangular block (1), and the first triangular block (1), the second triangular block (2), the third triangular block (3) and the fourth triangular block (4) are connected at their sides; Features: The invention also comprises a quick positioning connection assembly (5) arranged on the front sides of the first triangular block (1), the second triangular block (2), the third triangular block (3) and the fourth triangular block (4), the quick positioning connection assembly (5) comprising a connecting bar (51) arranged on the front sides of the first triangular block (1), the second triangular block (2), the third triangular block (3) and the fourth triangular block (4), a connecting shell (52) fastened to the front side of the connecting bar (51), a worm wheel (53) arranged inside the connecting shell (52), a worm (54) meshed with the right side of the worm wheel (53), a clamping structure (55) installed inside the connecting bar (51), positioning blocks (56) fixedly arranged on the front sides of the first triangular block (1), the second triangular block (2), the third triangular block (3) and the fourth triangular block (4) and connected to the inside of the connecting bar (51), and brackets (57) fastened to both sides of the outer ends of the connecting bar (51).

2. According to claim 1, a triangular positioning mechanism on a circular knitting machine is characterized in that: The clamping structure (55) comprises a rotating bar (551) rotatably connected to the inside of the connecting bar (51), a connecting arm (552) connected to the outside of the rotating bar (551), a first clamping bar (553) connected to the other side of the connecting arm (552), a first rack (554) fastened to the upper and lower ends of the first clamping bar (553), a gear (555) meshed with the outside of the first rack (554), a second rack (556) meshed with the outside of the gear (555), a second clamping bar (557) fastened to one side of the second rack (556) and opposite to the first clamping bar (553) on the left and right, a support rod (558) plugged into the upper and lower ends of the first clamping bar (553) and the second clamping bar (557), and a compression spring (559) installed on the outside of the support rod (558).

3. According to claim 1, a triangular positioning mechanism on a circular knitting machine is characterized in that: The positioning block (56) is integrally provided at four locations, and grooves are provided on both sides of the interior of the positioning block (56) at the four locations.

4. According to claim 2, a triangular positioning mechanism on a circular knitting machine is characterized in that: The clamping structures (55) are arranged between adjacent positioning blocks (56), and adjacent clamping structures (55) are connected correspondingly.

5. According to claim 2, a triangular positioning mechanism on a circular knitting machine is characterized in that: The left and right sides of the rotating bar (551) are both rotatably connected to connecting arms (552), and the outer ends of the connecting arms (552) on both sides are rotatably connected to the middle parts of the first clamping bar (553) and the second clamping bar (557), respectively.

6. The triangular positioning mechanism on a circular knitting machine according to claim 2, characterized in that: Four groups of the first clamping strips (553) and the second clamping strips (557) are installed along the interior of the connecting strip (51), and a round convex portion is integrally fixed at the middle of adjacent first clamping strips (553) and second clamping strips (557).

7. The triangular positioning mechanism on a circular knitting machine according to claim 2, characterized in that: The support rod (558) is symmetrically inserted laterally along the upper and lower ends of the first clamping strip (553) or the second clamping strip (557), and one end of the support rod (558) away from the first clamping strip (553) or the second clamping strip (557) is fixedly connected to the inside of the connecting strip (51).

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