A yarn support rod of a yarn frame of a texturing machine

Abstract

This invention relates to a yarn support rod for a texturing machine, comprising a rod body, a stop block, and a fixing device. The rod body is a horizontally placed cylindrical structure, with one end fixedly connected to the main body of the yarn support frame. The stop block is formed by sequentially connecting n fan-shaped columns, where n ≥ 3. The only difference between the fan-shaped columns is their length. Along the length direction of the fan-shaped columns, the projection of the stop block is a circle. One end face of all the fan-shaped columns is on the same plane, forming the end face X of the stop block. The stop block is fitted onto the rod body with a clearance fit. The end face X of the stop block faces the main body of the yarn support frame. The fixing device is used to detachably fix the stop block to the rod body. When the stop block is fixed to the rod body, one of the fan-shaped columns in the stop block is located directly above the rod body, denoted as fan-shaped column S. When the paper tube is fitted onto the rod body, one end of the paper tube is in contact with the end face of fan-shaped column S, and the inner wall of the paper tube is in contact with the rod body. The yarn support rod for a texturing machine of this invention can be adapted to paper tubes of different lengths.

Description

Technical Field

[0001] This invention belongs to the field of texturing machine technology and relates to a yarn support rod for a texturing machine. Background Technology

[0002] Texturing machines are key pieces of equipment in chemical fiber production, and the raw yarn frame is used to place and guide raw yarns of chemical fibers such as polyester and nylon. The raw yarns are usually wound on paper tubes and fitted onto the yarn support rods of the raw yarn frame.

[0003] The paper tube assembly must meet two requirements when mounted on the yarn support rod of the raw yarn frame:

[0004] (1) After the paper tube is placed on the yarn support rod of the raw yarn frame, the free end of the yarn support rod must not be exposed outside the paper tube, so that normal unwinding can be achieved. If the free end of the yarn support rod is exposed outside the paper tube, when the raw yarn is unwound to the bottom of the tube, the yarn layer on the paper tube becomes very thin, and then the exposed yarn support rod appears on the track of the raw yarn movement. Once the high-speed, high-tension raw yarn comes into contact with the yarn support rod, it will generate violent friction, and be instantly scratched, frayed or even directly broken, causing the end to break, which seriously affects production efficiency and product quality.

[0005] (2) After the paper tube is placed on the yarn support rod of the original yarn frame, the length of the paper tube extending beyond the free end of the yarn support rod should not be too long, otherwise the paper tube will be unstable and fall off the yarn support rod of the original yarn frame.

[0006] However, in actual production, due to differences in suppliers and product specifications, the paper tubes used for raw yarn have various lengths (such as 120mm, 150mm, 200mm, etc.). Existing raw yarn support rods cannot ensure that each specification of paper tube can meet the above two requirements at the same time during use.

[0007] To address the aforementioned issues, CN221369899U discloses a wire hanging arm for a texturing machine's raw wire frame. By controlling the position of the limiting part on the wire hanging arm, the distance between the limiting part and the free end of the wire hanging arm can be controlled, thereby matching different specifications of paper tubes. However, the limiting part is detachably fixed to the wire hanging arm with screws, which is not convenient to install and has low efficiency.

[0008] Publication No. CN205603759U discloses an adjustable wire hanging rod for the raw wire frame of a DTY texturing machine. The main technical solution is to add a movable adjustment component to the wire hanging rod. The movable adjustment component moves axially upward on the wire hanging rod to limit the movement, so as to accommodate paper tubes of different lengths. However, when the device is in use, if the force generated by hanging the paper tube is too large, the movable adjustment component is prone to slippage, which will cause the distance between the movable adjustment and the free end of the wire hanging rod to change, and thus become mismatched with the specifications of the paper tube being hung.

[0009] Therefore, it is of great significance to study a yarn support rod for a texturing machine to solve the above problems. Summary of the Invention

[0010] The purpose of this invention is to solve the problems existing in the prior art and to provide a yarn support rod for a texturing machine.

[0011] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0012] A yarn support rod for a texturing machine is used to provide support for the yarn cake by inserting it into the paper tube of the yarn cake. The yarn support rod of the texturing machine includes a rod body, a stop block and a fixing device.

[0013] The rod is a horizontally placed cylindrical structure, with one end of the rod fixedly connected to the main body of the original wire frame;

[0014] The stop block is formed by connecting n fan-shaped ring pillars in sequence, where n≥3; the only difference between the fan-shaped ring pillars is their length; the projection of the stop block along the length direction of the fan-shaped ring pillars is a circle; one end face of all the fan-shaped ring pillars is on the same plane and forms the end face X of the stop block, and the other end face of all the fan-shaped ring pillars is not on the same plane;

[0015] The stop block is fitted onto the rod body and has a clearance fit with the rod body; the end face X of the stop block faces the original wire frame body;

[0016] The fixing device is used to detachably fix the stop block to the rod body; when the stop block is fixed to the rod body, one of the fan ring posts in the stop block is located directly above the rod body, and this fan ring post is denoted as fan ring post S;

[0017] When the paper tube of the silk cake is fitted onto the rod, one end of the paper tube is in contact with the end face of the fan ring post S, and the inner wall of the paper tube is in contact (tangential) with the rod.

[0018] The relationship between the inner radius of the paper tube, the thickness of the fan ring column (the difference between the outer radius and the inner radius of the fan ring column), the radius of the rod, and n satisfies the following formula:

[0019] 2π / n≥2arccos{[2b(abx)-x 2 ] / [2(ab)(b+x)]};

[0020] Where a is the inner radius of the paper tube, b is the radius of the rod, and x is the thickness of the fan-shaped ring column;

[0021] The derivation of the above formula is as follows:

[0022] like Figure 5 and Figure 6The diagram shows two side views of the paper tube being mounted on the rod. One view is that the inner wall of the paper tube is in contact with the two adjacent fan ring columns S. This design makes the paper tube more stable when it is hung on the rod. The other view is that the inner wall of the paper tube is not in contact with the two adjacent fan ring columns S.

[0023] When the paper tube is fitted onto the rod, the projection of the paper tube onto the plane containing the end face X is denoted as a circle, and the center of this circle is denoted as point O; the projection of the rod onto the plane containing the end face X is denoted as a circle, and the center of this circle is denoted as point M; the point of tangency between the two circles is denoted as point A, and point A is located directly above point M; the projections of the intersection of the paper tube and the curved surface containing the outer circumference of the stop block onto the plane containing the end face X are denoted as points C and B, respectively; the projections of the two straight line segments of the outer circumference of the fan-shaped column S onto the plane containing the end face X are denoted as points E and F, respectively.

[0024] In triangle OMB, OB = a, OM = ab, MB = b + x; ∠CMB = θ;

[0025] OB 2 =MO 2 +MB 2 -2*MB*MO*cos(π-θ / 2), that is, a 2 =(ab) 2 +(b+x) 2 +2(ab)(b+x)cos(θ / 2);

[0026] Therefore, θ = 2arccos{[2b(abx)-x] 2 ] / [2(ab)(b+x)]};

[0027] Furthermore, when the paper tube is fitted onto the rod, ∠EMF ≥ ∠CMB;

[0028] Therefore, 2π / n ≥ 2arccos{[2b(abx)-x]} 2 ] / [2(ab)(b+x)]}.

[0029] The specific usage process is as follows: based on the length of the paper tube, different fan ring columns are selected as fan ring columns S, thereby adjusting the distance between the fan ring column S and the end of the rod that is away from the main body of the original yarn frame, so that one end of the paper tube protrudes beyond the yarn support rod of the original yarn frame, but not too much.

[0030] As a preferred technical solution:

[0031] As described above, in the yarn support rod of the texturing machine, when all the fan ring columns are arranged from longest to shortest, the length difference between any two adjacent fan ring columns is h.

[0032] The relationship between the length of the paper tube, the length of the end of the rod furthest from the main body of the original wire frame to the fan ring column S, and n satisfies the following condition:

[0033] There exist d < e + (k-1)h < d + δ, k ≤ n;

[0034] Where e is the length of the paper tube, d is the length from the end of the rod away from the main body of the original wire frame to the fan ring column S, and δ is 1mm~5mm;

[0035] When the paper tube is placed on the rod, one end of the paper tube should be exposed to avoid the rod interfering with the unwinding of the original wire. Therefore, it is required that e + (k - 1)h > d and k ≤ n.

[0036] When the paper tube is placed on the rod, one end of the paper tube must not be exposed, but it cannot be exposed too much. Otherwise, the paper tube will be unstable and fall off the yarn support rod of the original yarn frame. Therefore, it is required that e+(k-1)h<d+δ;k≤n.

[0037] As described above, the yarn support rod of the texturing machine also includes a hemisphere; the diameter of the hemisphere is equal to the diameter of the rod; the plane of the hemisphere is fixedly connected to the end of the rod away from the main body of the yarn support rod, and the center of the hemisphere is on the central axis of the rod; the hemisphere facilitates the introduction of the paper tube and avoids bumps;

[0038] When a hemisphere exists, the relationship between the length of the paper tube, the length of the end of the rod away from the main body of the original wire frame to the fan ring column S, the radius of the hemisphere, and n satisfies the following condition:

[0039] There exists d+r<e+(k-1)h<d+r+δ, k≤n;

[0040] Where e is the length of the paper tube, d is the length from the end of the rod away from the main body of the original wire frame to the fan ring column S, r is the radius of the hemisphere, and δ is 1mm~5mm.

[0041] When a hemisphere is present, the specific process is as follows: based on the length of the paper tube, different fan ring columns are selected as fan ring columns S, thereby adjusting the distance from the fan ring column S to the far end of the hemisphere, so that one end of the paper tube protrudes beyond the yarn support rod of the original yarn frame, but not too much.

[0042] As described above, in the yarn support rod of a texturing machine, all fan-shaped columns are arranged in a clockwise or counterclockwise direction from the longest to the shortest according to their respective lengths, along a view from the end of the rod away from the main body of the yarn support rod to the main body of the yarn support rod.

[0043] As described above, the yarn support rod of the texturing machine has a fixing device including a fixing block and a fixing rod; the fixing block is fixed to the rod body, and the fixing rod is fixed to the fixing block; the fixing rod is located directly above the rod body, and the length direction of the fixing rod is the same as that of the rod body;

[0044] The end face X of the stop block is provided with n blind holes, and the n blind holes are located on the n sector ring pillars respectively;

[0045] The fixing device secures the stop block to the rod body through the cooperation of the fixing rod and the blind hole.

[0046] Based on the length of the paper tube, select a suitable fan ring post as fan ring post S, and then fix the stop block on the rod body by cooperating with the blind hole of the fan ring post S through the fixing rod.

[0047] As described above, the yarn support rod of the texturing machine has a hollow cylindrical structure for the fixing block, which is fitted onto the rod body and has an interference fit with the rod body.

[0048] The texturing machine's yarn support rod, as described above, further includes a mounting base.

[0049] One end of the rod is fixedly connected to the main body of the original wire frame via a mounting base.

[0050] Beneficial effects:

[0051] Depending on the length of the paper tube, the stop block in the yarn support rod of the texturing machine of the present invention can be selected as a different fan ring column as the fan ring column S, thereby adjusting the distance between the fan ring column S and the end of the rod away from the main body of the yarn support rod, so that one end of the paper tube is exposed outside the yarn support rod of the yarn support rod, but not too much. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the yarn support rod of the texturing machine according to the present invention (the stop block is not shown in the figure).

[0053] Figures 2-4 This is a schematic diagram of the stop block in the yarn support rod of the texturing machine of the present invention from different perspectives;

[0054] Figures 5-6 This is a side view diagram showing two scenarios where the paper tube is fitted onto the rod.

[0055] Figure 7 This is a schematic diagram of the yarn support rod of the texturing machine according to the present invention;

[0056] Figure 8 A schematic diagram showing the yarn cake hanging on the yarn support rod of the original yarn frame of a texturing machine according to the present invention;

[0057] Among them, 1-rod body, 2-stop block, 3-fixing device, 4-hemispherical body, 5-mounting base, 6-silk disc. Detailed Implementation

[0058] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims. Specific Implementation Method 1

[0060] A yarn support rod for a texturing machine is used to insert into the paper tube of the yarn cake to provide support for the yarn cake; the yarn support rod of the texturing machine includes a rod body, a stop block, a fixing device and a mounting base;

[0061] The rod is a horizontally placed cylindrical structure, and one end of the rod is fixedly connected to the original wire frame body through a mounting base;

[0062] The stop block is formed by connecting n fan-shaped ring pillars in sequence, where n≥3; the only difference between the fan-shaped ring pillars is their length; along the length direction of the fan-shaped ring pillars, the projection of the stop block is a circle; one end face of all the fan-shaped ring pillars is on the same plane and forms the end face X of the stop block;

[0063] The stop block is fitted onto the rod body and has a clearance fit with the rod body; the end face X of the stop block faces the original wire frame body;

[0064] From the perspective of the end of the rod away from the main body of the original wire frame to the main body of the original wire frame, all the fan ring columns are arranged in a clockwise or counterclockwise direction according to their respective lengths from longest to shortest.

[0065] The fixing device includes a fixing block and a fixing rod; the fixing block is a hollow cylindrical structure, and the fixing block is fitted onto the rod body with an interference fit; the fixing rod is fixed on the fixing block, and the fixing rod is located directly above the rod body, and the length direction of the fixing rod is the same as that of the rod body; the end face X of the stop block is provided with n blind holes, and the n blind holes are respectively located on n fan-shaped columns; the fixing device fixes the stop block to the rod body through the cooperation of the fixing rod and the blind holes;

[0066] When the stop block is fixed to the rod, one of the fan-shaped ring posts in the stop block is located directly above the rod. This fan-shaped ring post is denoted as fan-shaped ring post S.

[0067] When the paper tube is fitted onto the rod, one end of the paper tube is in contact with the end face of the fan ring post S, and the inner wall of the paper tube is in contact (tangential) with the rod.

[0068] The relationship between the inner radius of the paper tube, the thickness of the fan ring column (the difference between the outer radius and the inner radius of the fan ring column), the radius of the rod, and n satisfies the following formula:

[0069] 2π / n≥2arccos{[2b(abx)-x 2 ] / [2(ab)(b+x)]};

[0070] Where a is the inner radius of the paper tube, b is the radius of the rod, and x is the thickness of the fan-shaped ring column;

[0071] When all the fan ring columns are arranged in descending order of length, the length difference between any two adjacent fan ring columns is h; the relationship between the paper tube length, the length of the end of the rod away from the main body of the original wire frame to the fan ring column S, and n satisfies the following conditions:

[0072] There exist d < e + (k-1)h < d + δ, k ≤ n;

[0073] Where e is the length of the paper tube, d is the length from the end of the rod away from the main body of the original wire frame to the fan ring column S, and δ is 1mm~5mm. Specific Implementation Method Two

[0075] A yarn support rod for a texturing machine is used to insert into the paper tube of the yarn cake 6 to provide support for the yarn cake; such as Figure 1 , 7 As shown in Figure 8, the yarn support rod of the texturing machine includes a rod body 1, a stop block 2, a hemisphere 4, a fixing device 3, and a mounting base 5;

[0076] The rod 1 is a horizontally placed cylindrical structure. One end of the rod 1 is fixedly connected to the main body of the original wire frame through the mounting base 5. The diameter of the hemisphere 4 is equal to the diameter of the rod 1. The plane of the hemisphere 4 is fixedly connected to the end of the rod 1 away from the main body of the original wire frame. The center of the hemisphere 4 is on the central axis of the rod 1.

[0077] Block 2 is formed by connecting n fan-shaped ring pillars in sequence, where n≥3 ( Figure 7 In the middle, n=3); the only difference between the fan ring pillars is their length; along the length direction of the fan ring pillar, the projection of the stop block 2 is a ring; one end face of all the fan ring pillars is on the same plane and forms the end face X of the stop block 2;

[0078] The stop block 2 is fitted onto the rod body 1 and has a clearance fit with the rod body 1; the end face X of the stop block 2 faces the original wire frame body;

[0079] From the perspective of the end of rod 1 away from the main body of the original wire frame to the main body of the original wire frame, all fan ring columns are arranged in a clockwise or counterclockwise direction according to their respective lengths from longest to shortest.

[0080] The fixing device 3 includes a fixing block and a fixing rod; the fixing block is a hollow cylindrical structure, and the fixing block is fitted onto the rod body 1 and has an interference fit with the rod body 1; the fixing rod is fixed on the fixing block, and the fixing rod is located directly above the rod body 1, and the length direction of the fixing rod is the same as that of the rod body 1; the end face X of the stop block 2 is provided with n blind holes, and the n blind holes are respectively located on the n fan-shaped columns; the fixing device 3 fixes the stop block 2 to the rod body 1 through the cooperation of the fixing rod and the blind holes;

[0081] When the stop block 2 is fixed on the rod body 1, one of the fan ring columns in the stop block 2 is located directly above the rod body 1. This fan ring column is denoted as fan ring column S.

[0082] When the paper tube is fitted onto the rod 1, one end of the paper tube is in contact with the end face of the fan ring post S, and the inner wall of the paper tube is in contact (tangential) with the rod 1.

[0083] The relationship between the inner radius of the paper tube, the thickness of the fan ring column (the difference between the outer radius and the inner radius of the fan ring column), the radius of rod 1, and n satisfies the following formula:

[0084] 2π / n≥2arccos{[2b(abx)-x 2 ] / [2(ab)(b+x)]};

[0085] Where a is the inner radius of the paper tube, b is the radius of rod 1, and x is the thickness of the fan ring column;

[0086] When all the fan ring columns are arranged in descending order of length, the length difference between any two adjacent fan ring columns is h; the relationship between the paper tube length, the length of the end of rod 1 away from the original wire frame body to the fan ring column S, the radius of hemisphere 4, and n satisfies the following conditions:

[0087] There exists d+r<e+(k-1)h<d+r+δ, k≤n;

[0088] Where e is the length of the paper tube, d is the length from the end of the rod 1 away from the main body of the original wire frame to the fan ring column S, r is the radius of the hemisphere 4, and δ is 1mm~5mm.

[0089] According to specific implementation method two, the present invention will be specifically described through embodiments as follows:

[0090] When faced with three types of paper tubes (Type A: paper tube length 140mm, inner radius 60mm; Type B: paper tube length 160mm, inner radius 70mm; Type C: paper tube length 180mm, inner radius 80mm), the dimensions of the yarn support rod of the texturing machine of the present invention are as follows:

[0091] The length from the end of the rod furthest from the main body of the original wire frame to the fan ring column S is 165mm; the radius of the rod is 12mm; (e.g., ...) Figures 2-4 As shown, n=3, the only difference between the fan ring columns is their length, which is 20mm, 40mm, and 60mm respectively; h is 20mm; the thickness of the fan ring column (the difference between the outer radius and the inner radius of the fan ring column) is 7mm.

[0092] The relationship between the inner radius of the three types of paper tubes, the thickness of the sector ring column, the radius of the rod, and n satisfies the following formula:

[0093] 2π / n≥2arccos{[2b(abx)-x 2 ] / [2(ab)(b+x)]};

[0094] Where a is the inner radius of the paper tube, b is the radius of the rod, and x is the thickness of the fan-shaped ring column;

[0095] That is, when the three types of paper tubes are respectively fitted onto the rod, one end of the paper tube is in contact with the end face of the fan ring post S, and the inner wall of the paper tube is in contact with the rod.

[0096] The relationship between the lengths of the three types of paper tubes, the length from the end of the rod furthest from the main body of the original wire frame to the fan ring column S, the radius of the hemisphere, and n satisfies the following condition:

[0097] There exists d+r<e+(k-1)h<d+r+δ, k≤n;

[0098] Where e is the length of the paper tube, d is the length from the end of the rod away from the main body of the original wire frame to the fan ring column S, r is the radius of the hemisphere, and δ is 5mm.

[0099] Specifically, when the paper tube is type A, k is 3; when the paper tube is type B, k is 2; and when the paper tube is type C, k is 1.

[0100] When the three types of paper tubes are respectively fitted onto the rod, one end of the paper tube can be attached to the end face of different fan ring columns S, and ensure that one end of the paper tube protrudes beyond the original yarn support rod, without protruding too much.

Claims

1. A yarn support rod for a texturing machine, used to insert into a paper tube of the yarn cake to provide support for the yarn cake, characterized in that, The yarn support rod of the texturing machine includes the rod body, the stop block and the fixing device; The rod is a horizontally placed cylindrical structure, with one end of the rod fixedly connected to the main body of the original wire frame; The stop block is formed by connecting n fan-shaped ring pillars in sequence, where n≥3; the only difference between the fan-shaped ring pillars is their length; along the length direction of the fan-shaped ring pillars, the projection of the stop block is a circle; one end face of all the fan-shaped ring pillars is on the same plane and forms the end face X of the stop block; The stop block is fitted onto the rod body and has a clearance fit with the rod body; the end face X of the stop block faces the original wire frame body; The fixing device is used to detachably fix the stop block to the rod body; when the stop block is fixed to the rod body, one of the fan ring posts in the stop block is located directly above the rod body, and this fan ring post is denoted as fan ring post S; When the paper tube is fitted onto the rod, one end of the paper tube is in contact with the end face of the fan ring post S, and the inner wall of the paper tube is in contact with the rod. The relationship between the inner radius of the paper tube, the thickness of the fan ring column, the radius of the rod, and n satisfies the following formula: 2π / n≥2arccos{[2b(a-b-x)-x 2 ] / [2(a-b)(b+x)]}; Where a is the inner radius of the paper tube, b is the radius of the rod, and x is the thickness of the fan-shaped ring column; When all the sector ring pillars are arranged in descending order of length, the length difference between any two adjacent sector ring pillars is h; The relationship between the length of the paper tube, the length of the end of the rod furthest from the main body of the original wire frame to the fan ring column S, and n satisfies the following condition: There exist d < e + (k-1)h < d + δ, k ≤ n; Where e is the length of the paper tube, d is the length from the end of the rod away from the main body of the original wire frame to the fan ring column S, and δ is 1mm~5mm; Alternatively, the yarn support rod of the original yarn frame may also include a hemisphere; the diameter of the hemisphere is equal to the diameter of the rod; the plane of the hemisphere is fixedly connected to the end of the rod away from the main body of the original yarn frame, and the center of the hemisphere is on the central axis of the rod; When a hemisphere exists, the relationship between the length of the paper tube, the length of the end of the rod away from the main body of the original wire frame to the fan ring column S, the radius of the hemisphere, and n satisfies the following condition: There exists d+r<e+(k-1)h<d+r+δ, k≤n; Where e is the length of the paper tube, d is the length from the end of the rod away from the main body of the original wire frame to the fan ring column S, r is the radius of the hemisphere, and δ is 1mm~5mm.

2. The yarn support rod of the texturing machine according to claim 1, characterized in that, From the perspective of the end of the rod away from the main body of the original wire frame, all the fan ring columns are arranged in a clockwise or counterclockwise direction according to their respective lengths from longest to shortest.

3. The yarn support rod of the texturing machine according to claim 1, characterized in that, The fixing device includes a fixing block and a fixing rod; the fixing block is fixed to the rod body, and the fixing rod is fixed to the fixing block; the fixing rod is located directly above the rod body, and the length direction of the fixing rod is the same as that of the rod body; The end face X of the stop block is provided with n blind holes, and the n blind holes are located on the n sector ring pillars respectively; The fixing device secures the stop block to the rod body through the cooperation of the fixing rod and the blind hole.

4. The yarn support rod of the texturing machine according to claim 3, characterized in that, The fixing block is a hollow cylindrical structure, which is fitted onto the rod and has an interference fit with the rod.

5. The yarn support rod of the texturing machine according to claim 1, characterized in that, The yarn support rod of the texturing machine also includes a mounting base; One end of the rod is fixedly connected to the main body of the original wire frame via a mounting base.

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