Device and method for testing the pressing performance of electronic-grade glass fiber tube yarn

Abstract

The application discloses an electronic-grade glass fiber tube yarn pressing performance testing device and a testing method, and belongs to the technical field of glass fiber tube yarn testing devices. The device comprises a rack and a tube yarn to be tested. A tube yarn placing bracket is arranged above the rack. The tube yarn placing bracket is connected with a tube yarn testing moving frame. The tube yarn testing moving frame comprises a left-right moving frame and an up-down moving frame. The up-down moving frame passes through the left-right moving frame and is connected with the tube yarn placing bracket. The tube yarn placing bracket is located below the up-down moving frame. A moving guide rail matched with the left-right moving frame is arranged below the left-right moving frame. The up-down moving frame is further connected with a rotating moving mechanism at the position connected with the tube yarn placing bracket. A front-rear moving mechanism is arranged on the rack. The glass fiber tube yarn can be tested quickly and intuitively without damaging the yarn, and the pressing performance of the yarn can be evaluated according to the test structure, so that the problems in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of electronic grade glass fiber tube yarn press yarn performance testing device and testing method, belong to glass fiber tube yarn testing device technical field. BACKGROUND

[0002] Glass fiber yarn is widely used as reinforcing material in building materials, aerospace, electronics, machinery and other fields, but often appears to be broken in customer use, not only affects the quality of downstream customer products, also greatly reduces its production efficiency. Among them, the yarn layering error caused by transportation bumping yarn press phenomenon is one of the main reasons for customer to be broken, however, the traditional press performance test can only evaluate the yarn press performance by breaking rate, on the one hand, it has great destructive to yarn product, causing waste of material; On the other hand, it cannot clearly show the cause of yarn press. Therefore, how to quickly and intuitively evaluate the yarn press performance without damaging the yarn has become an urgent technical problem to be solved. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides an electronic grade glass fiber tube yarn press performance testing device and testing method, which solves the problems in the prior art.

[0004] The electronic grade glass fiber tube yarn press performance testing device provided by the present application comprises a rack and a tube yarn to be tested, a tube yarn placing bracket is arranged above the rack, the tube yarn to be tested is placed on the tube yarn placing bracket, the tube yarn placing bracket is connected with a tube yarn testing movement frame, the tube yarn testing movement frame comprises a left-right movement frame and an up-down movement frame, the up-down movement frame passes through the left-right movement frame and is connected with the tube yarn placing bracket, the tube yarn placing bracket is located below the up-down movement frame, a movement guide rail matched with the left-right movement frame is arranged below the left-right movement frame, the left-right movement frame drives the up-down movement frame to move left and right on the movement guide rail, an up-down movement mechanism is arranged on the up-down movement frame, the up-down movement mechanism is connected with the tube yarn placing bracket to realize the up-down movement of the tube yarn placing bracket, a rotary movement mechanism is further connected with the up-down movement frame at the position where the up-down movement frame is connected with the tube yarn placing bracket, a front-rear movement mechanism is arranged on the rack, and the front-rear movement mechanism drives the entire tube yarn testing movement frame to move forward and backward on the rack.

[0005] Further, a left-right movement motor is arranged on the left-right movement frame, and a gear and rack structure is connected below the left-right movement motor to drive the left-right movement frame to move left and right on the movement guide rail.

[0006] Further, the up-down movement mechanism comprises a gear transmission belt arranged on the up-down movement frame, an up-down movement motor matched with the gear transmission belt is connected to the outside of the gear transmission belt, and the up-down movement motor drives the gear transmission belt to move up and down to drive the up-down movement frame to move up and down. Further, the up-down movement mechanism comprises a gear transmission belt arranged on the up-down movement frame, an up-down movement motor matched with the gear transmission belt is connected to the outside of the gear transmission belt, and the up-down movement motor drives the gear transmission belt to move up and down to drive the up-down movement frame to move up and down.

[0007] Furthermore, the rotary motion mechanism includes a rotary motion motor, and a gearbox is connected to the outside of the rotary motion motor. The gearbox is connected to a yarn tube placement bracket.

[0008] Furthermore, the front and rear motion mechanism includes a front and rear motion motor located on one side above the frame. The front and rear motion motor is connected to a rotating shaft, which is connected to a gear and rack conveyor belt located above the frame.

[0009] Furthermore, the left and right sides of the yarn tube testing motion frame are connected to the gear and rack conveyor belt via snap-fit ​​seats, and the gear and rack conveyor belt drives the entire yarn tube testing motion frame to move back and forth.

[0010] The method for testing the pressing performance of electronic-grade glass fiber tube yarn according to the present invention includes the following steps:

[0011] Step 1: The yarn tube to be tested includes the yarn tube base and the yarn tube column. The vertical distance from the most concave / convex point of the yarn at the yarn tube base to the normal surface of the yarn tube column is set as M.

[0012] Step 2: Unwind the yarn along the cylindrical section, unwinding a certain number of turns, and test the vertical distance between the initial and final unwinding points, setting it as n1;

[0013] Step 3: Place the yarn tube to be tested on the yarn tube placement bracket and fix it in place. After fixing, start the test; the testing device will start the test.

[0014] Step 4: Based on the transportation mode and road conditions of the yarn transport, set the speed and running time parameters of the forward and backward movement, up and down movement, left and right movement, and rotational movement in the testing device, and conduct the test according to the set parameters;

[0015] Step 5: After the test is completed, the equipment will automatically stop and the yarn tube will be removed;

[0016] Step 6: Unwind the yarn along the cylindrical section, unwinding a certain number of turns, and test the vertical distance n2 between the initial unwinding point and the final unwinding point;

[0017] Step 7: Calculate the slippage N = n1 - n2, and evaluate the yarn performance based on M and N.

[0018] Furthermore, the number of yarn unwinding loops in steps two and six is ​​the same, both being 25 loops.

[0019] Furthermore, in step four, the speed parameters of the testing device are set as follows: forward and backward movement speed: 0-30m / s; up and down movement speed: 0-30m / s; left and right movement speed: 0-30m / s; rotational movement speed: 0-80r / min; and the running time parameter is 0-24h.

[0020] Furthermore, in step seven, M<0mm indicates poor yarn forming process; after the yarn is subjected to a bump test, the larger the slippage N, the smaller the friction between the yarn and the internal supporting yarn tube.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The electronic-grade glass fiber tube yarn compression performance testing device and method described in this invention can quickly and intuitively test glass fiber tube yarn without damaging the yarn, and evaluate the yarn compression performance based on the test structure. The device can be adjusted according to the size of the yarn tube to accommodate tubes of different sizes. The testing device can simultaneously adjust parameters such as forward / backward, up / down, left / right, and rotational speeds and running time, effectively simulating the degree of vibration of the yarn tube under different modes of transportation and road conditions (land, sea, and air). This testing method is simple and quick, does not damage the yarn product, and reduces waste. Based on the test results, this testing method can analyze the causes of compression, providing guidance for improving production processes. The test can automatically stop, preventing machine idling and damage to equipment, and has significant guiding significance for yarn application and the development of optimal molding processes. It solves the problems existing in the prior art. Attached Figure Description

[0023] Figure 1 This is a front view of the device in an embodiment of the present invention;

[0024] Figure 2 This is a side view of the device in an embodiment of the present invention;

[0025] Figure 3 This is a top view of the device in an embodiment of the present invention;

[0026] Figure 4 This is a perspective view of the device in an embodiment of the present invention;

[0027] Figure 5 This is a structural diagram of the yarn tube in an embodiment of the present invention;

[0028] Figure 6 The measurement of M in the yarn tube in the test method of this embodiment of the invention. Figure 1 ;

[0029] Figure 7 The measurement of M in the yarn tube in the test method of this embodiment of the invention. Figure 2 ;

[0030] Figure 8 This is a measurement diagram of n1 in the yarn tube during the testing method of this embodiment of the invention;

[0031] Figure 9 This is a measurement diagram of n2 in the yarn tube during the testing method of this embodiment of the invention;

[0032] In the diagram: 1. Front and rear motion motor; 2. Up and down motion motor; 3. Rack and pinion; 4. Left and right motion motor; 5. Gearbox; 6. Rotary motion motor; 7. Yarn tube to be tested; 8. Yarn tube base; 9. Yarn tube column; 10. Gear and rack conveyor belt; 11. Card holder; 12. Frame; 13. Up and down motion frame; 14. Left and right motion frame; 15. Motion guide rail. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0034] Example 1:

[0035] like Figures 1-5 As shown, the electronic-grade glass fiber tube yarn pressing performance testing device of the present invention includes a frame 12 and a tube yarn 7 to be tested. A tube yarn placement bracket is provided above the frame 12, and the tube yarn 7 to be tested is placed on the tube yarn placement bracket. The tube yarn placement bracket is connected to a tube yarn testing motion frame, which includes a left and right motion frame 14 and an up and down motion frame 13. The up and down motion frame 13 passes through the left and right motion frame 14 and is connected to the tube yarn placement bracket. The tube yarn placement bracket is located below the up and down motion frame 13. A motion guide rail 15 is provided below the left and right motion frame 14 to cooperate with it. The left and right motion frame 14 drives the up and down motion frame 13 to move left and right on the motion guide rail 15. The up and down motion frame 13 is provided with an up and down motion mechanism, which is connected to the tube yarn placement bracket to realize its up and down movement. A rotation motion mechanism is also connected to the up and down motion frame 13 at the position where it connects to the tube yarn placement bracket. A front and back motion mechanism is provided on the frame 12, which drives the entire tube yarn testing motion frame to move back and forth on the frame 12.

[0036] The left and right motion frame 4 is equipped with a left and right motion motor 4, and a gear and rack structure is connected below the left and right motion motor 4 to drive the left and right motion frame 14 to move left and right on the motion guide rail 15.

[0037] The up-and-down motion mechanism includes a rack 3 located on the up-and-down motion frame 13. An up-and-down motion motor 2 is connected to the outside of the rack 3 and works with it. The up-and-down motion motor 2 drives the rack 3 to move up and down, thereby driving the up-and-down motion frame 13 to move up and down.

[0038] The rotary motion mechanism includes a rotary motion motor 6, and a gearbox 5 is connected to the outside of the rotary motion motor 6. The gearbox 5 is connected to the yarn tube placement bracket.

[0039] The front and rear motion mechanism includes a front and rear motion motor 1, which is located on one side above the frame 12. The front and rear motion motor 1 is connected to a rotating shaft, which is connected to a gear and rack conveyor belt 10, which is located above the frame 12.

[0040] The left and right sides of the yarn tube testing motion frame are connected to the gear and rack conveyor belt 10 via the bracket 11. The gear and rack conveyor belt 10 drives the entire yarn tube testing motion frame to move back and forth.

[0041] The working principle of this embodiment is as follows: The testing device is used to test the yarn compression performance of the yarn tube. During the test, the yarn tube is placed into the testing device and fixed. Based on the traffic mode and road conditions of the yarn transportation, the parameters of the testing device are set as follows: forward / backward (0-30m / s), up / down (0-30m / s), left / right (0-30m / s), and rotational (0-80r / min) speeds, as well as the running time (0-24h). After the test, the equipment automatically stops and removes the yarn tube. The yarn compression performance of the yarn tube is evaluated based on the test results. This testing device allows for a quick and intuitive evaluation of the yarn compression performance without damaging the yarn, which has significant guiding significance for yarn application and the development of optimal forming processes.

[0042] Example 2:

[0043] The method for testing the pressing performance of electronic-grade glass fiber tube yarn according to the present invention includes the following steps:

[0044] Step 1: The test tube 7 includes a tube base 8 and a tube column part 9. The vertical distance from the most concave / convex point of the yarn at the tube base 8 to the normal surface of the tube column part 9 is set as M.

[0045] Step 2: Unwind the yarn along the cylindrical section, unwinding a certain number of turns, and test the vertical distance between the initial and final unwinding points, setting it as n1;

[0046] Step 3: Place the yarn tube 7 to be tested on the yarn tube placement bracket and fix it in place. After fixing, start the test; the testing device starts the test.

[0047] Step 4: Based on the transportation mode and road conditions of the yarn transport, set the speed and running time parameters of the forward and backward movement, up and down movement, left and right movement, and rotational movement in the testing device, and conduct the test according to the set parameters;

[0048] Step 5: After the test is completed, the equipment will automatically stop and the yarn tube will be removed;

[0049] Step 6: Unwind the yarn along the cylindrical section, unwinding a certain number of turns, and test the vertical distance n2 between the initial unwinding point and the final unwinding point;

[0050] Step 7: Calculate the slippage N = n1 - n2, and evaluate the yarn performance based on M and N.

[0051] The number of yarn loops unwinding in steps two and six is ​​the same, 25 loops each.

[0052] In step four, the speed parameters of the testing device are set as follows: forward and backward movement speed: 0-30m / s; up and down movement speed: 0-30m / s; left and right movement speed: 0-30m / s; rotational movement speed: 0-80r / min; and the running time parameter is 0-24h.

[0053] In step seven, M<0mm indicates poor yarn forming process; after the yarn is subjected to a bump test, the larger the slippage N, the smaller the friction between the yarn and the internal supporting yarn tube.

[0054] The vertical distance M from the concave / convex point of the yarn to the normal surface is evaluated. M > 0 indicates that the bottom of the product is convex and the yarn is well wound. M < 0 indicates that the bottom of the product is concave and the yarn is poorly wound, which can easily lead to the yarn being pulled into the inner layer during later winding, causing yarn misalignment and poor yarn pressing performance. Then, the slippage N after the bump test is compared. The larger the N, the more misalignment occurs due to the low friction between the yarns after the bump test, resulting in poor yarn pressing performance.

[0055] The working principle of this embodiment is as follows: During testing, the test process data is shown in the table below:

[0056]

[0057] N = n1 - n2

[0058] Example 1: Sample 1: G75 product, M distance is 3mm>0, indicating that the bottom of the yarn product is raised, the initial winding of the twisted yarn is good, and the yarn will not be squeezed in due to the bottom depression in the later stage of winding, avoiding yarn pressing phenomenon during customer use due to yarn misalignment. The slippage N is 1mm, indicating that the yarn product did not misalign after testing, also avoiding yarn pressing phenomenon during customer use.

[0059] Example 2: Sample 2: G45 product, M distance is -2mm < 0, indicating that the bottom of the yarn product is concave, the initial winding of the twisted yarn is poor, and in the later stage of winding, the concave bottom causes the yarn to be pulled in, resulting in yarn pressing due to yarn misalignment. The slippage N is 4mm, indicating that after the bump test, the yarn misalignment occurred due to low friction, further leading to yarn pressing during customer use. Therefore, the concave bottom phenomenon of the product can be improved by adjusting the yarn forming method, and further improving the cross angle and winding tension in the yarn forming process can improve the friction between glass fiber yarns and between glass fiber and yarn tube.

[0060] Example 3: Sample 3: G37 product, M distance is 2mm>0, indicating that the bottom of the yarn product is raised, the initial winding is good, and the yarn will not be squeezed in due to bottom depression in the later stage of winding, avoiding yarn pressing phenomenon during customer use due to yarn misalignment. The slippage N is 3mm, indicating that the yarn product misaligned due to low friction after the bump test, resulting in yarn pressing phenomenon during customer use. Therefore, the friction between glass fiber yarns and between glass fiber and yarn tube can be improved by improving the cross angle and winding tension in the yarn forming process.

[0061] At the same time, the grade of glass fiber yarn can be rated according to the values ​​of M and N, based on the glass fiber yarn compression rating table below, so as to meet the needs of different customers according to the yarn grade.

[0062] Glass fiber yarn compression rating table

[0063]

[0064] The test results are consistent with the customer's usage, indicating that the test method is effective and provides guidance for improving the quality of glass fiber.

[0065] The electronic-grade glass fiber tube yarn compression performance testing device and method of the present invention, described above in conjunction with the accompanying drawings, can quickly and intuitively test glass fiber tube yarn without damaging the yarn, and evaluate the yarn compression performance based on the test structure. The device can be adjusted according to the size of the yarn tube to accommodate tubes of different sizes. The testing device can simultaneously adjust parameters such as forward / backward, up / down, left / right, and rotational speeds and running time, effectively simulating the degree of vibration of the yarn tube under different modes of transportation and road conditions (land, sea, and air). This testing method is simple and quick, does not damage the yarn product, and reduces waste. Based on the test results, this testing method can analyze the causes of yarn compression, providing guidance for improving production processes. The test can automatically stop, preventing machine idling and damage to equipment, and has significant guiding significance for yarn application and the development of optimal molding processes. It solves the problems existing in the prior art. However, the present invention is not limited to the described embodiments. Changes, modifications, substitutions, and variations made to the embodiments without departing from the principles and spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. A method for testing the pressing performance of electronic-grade glass fiber tube yarn, applied to a device for testing the pressing performance of electronic-grade glass fiber tube yarn, characterized in that, The device includes a frame (12) and a yarn tube (7) to be tested. A yarn tube placement bracket is provided above the frame (12). The yarn tube (7) to be tested is placed on the yarn tube placement bracket. The yarn tube placement bracket is connected to a yarn testing motion frame. The yarn testing motion frame includes a left and right motion frame (14) and an up and down motion frame (13). The up and down motion frame (13) passes through the left and right motion frame (14) and connects to the yarn tube placement bracket. The yarn tube placement bracket is located below the up and down motion frame (13). The left and right motion frame (14) is provided with a corresponding device below it. The moving guide rail (15) is matched with the left and right moving frame (14), which drives the upper and lower moving frame (13) to move left and right on the moving guide rail (15). The upper and lower moving frame (13) is provided with an upper and lower moving mechanism. The upper and lower moving mechanism is connected to the yarn tube placement bracket to realize its upper and lower movement. The upper and lower moving frame (13) is also connected to a rotating moving mechanism at the position of connecting the yarn tube placement bracket. The frame (12) is provided with a front and back moving mechanism. The front and back moving mechanism drives the entire yarn tube testing moving frame to move back and forth on the frame (12). The method includes the following steps: Step 1: The test tube (7) includes the tube base (8) and the tube column part (9). The vertical distance from the most concave / convex point of the yarn at the tube base (8) to the normal surface of the tube column part (9) is set as M. Step 2: Unwind the yarn along the cylindrical section, unwinding a certain number of turns, and test the vertical distance between the initial and final unwinding points, setting it as n1; Step 3: Place the yarn tube to be tested on the yarn tube placement bracket and fix it in place. After fixing, start the test; the testing device will start the test. Step 4: Based on the transportation mode and road conditions of the yarn transport, set the speed and running time parameters of the forward and backward movement, up and down movement, left and right movement, and rotational movement in the testing device, and conduct the test according to the set parameters; Step 5: After the test is completed, the equipment will automatically stop and the yarn tube will be removed; Step 6: Unwind the yarn along the cylindrical section, unwinding a certain number of turns, and test the vertical distance n2 between the initial unwinding point and the final unwinding point; Step 7: Calculate the slip N = n1 - n2, and evaluate the yarn performance based on M and N; the number of yarn unwinding loops in Step 2 and Step 6 is the same; The vertical distance M from the concave / convex point of the yarn to the normal surface is evaluated. M > 0 indicates that the bottom of the product is convex and the yarn is well wound and formed. M < 0 indicates that the bottom of the product is concave and the forming is poor. It is easy to cause the yarn to be trapped into the inner layer during later winding, causing yarn misalignment and poor yarn pressing performance. Then compare the slippage N after the bump test. The larger N is, the more misalignment occurs after bumping due to the small friction between the yarns, and the poor yarn pressing performance.

2. The method for testing the pressing performance of electronic-grade glass fiber tube yarn according to claim 1, characterized in that: The left and right motion frame (4) is equipped with a left and right motion motor (4), and a gear and rack structure is connected below the left and right motion motor (4) to drive the left and right motion frame (14) to move left and right on the motion guide rail (15).

3. The method for testing the pressing performance of electronic-grade glass fiber tube yarn according to claim 1, characterized in that: The up-and-down movement mechanism includes a rack (3) located on the up-and-down movement frame (13). The outside of the rack (3) is connected to an up-and-down movement motor (2) that cooperates with it. The up-and-down movement motor (2) drives the gear to rotate, causing the rack (3) to move up and down, thereby causing the up-and-down movement frame (13) to move up and down.

4. The method for testing the pressing performance of electronic-grade glass fiber tube yarn according to claim 1, characterized in that: The rotary motion mechanism includes a rotary motion motor (6), and a gearbox (5) is connected to the outside of the rotary motion motor (6). The gearbox (5) is connected to a yarn tube placement bracket.

5. The method for testing the pressing performance of electronic-grade glass fiber tube yarn according to claim 1, characterized in that: The aforementioned front and rear motion mechanism includes a front and rear motion motor (1), which is located on one side above the frame (12). The front and rear motion motor (1) is connected to a rotating shaft, which is connected to a gear and rack conveyor belt (10), which is located above the frame (12).

6. The method for testing the pressing performance of electronic-grade glass fiber tube yarn according to claim 5, characterized in that: The left and right sides of the yarn tube testing motion frame are connected to the gear and rack conveyor belt (10) by the snap-fit ​​seats. The gear and rack conveyor belt (10) drives the entire yarn tube testing motion frame to move back and forth.

7. The method for testing the pressing performance of electronic-grade glass fiber tube yarn according to claim 1, characterized in that, In step four, the speed parameters of the testing device are set as follows: forward and backward movement speed: 0-30 m / s; up and down movement speed: 0-30 m / s; left and right movement speed: 0-30 m / s; rotational movement speed: 0-80 r / min; and the running time parameter is 0-24 h.

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