Fiber yarn drum weighing structure for composite material frame pultrusion equipment

Abstract

The utility model relates to a fiber yarn drum weighing structure for composite material frame pultrusion equipment. The fiber yarn drum weighing structure comprises a vertical support; the transverse bracket is mounted on the vertical bracket in a height-adjustable manner; the weighing assembly comprises a fixing plate fixed to the top of the transverse support, a carrying plate elastically installed above the fixing plate and a pressure sensor fixed to the top of the fixing plate, and the pressure sensor weighs the fiber yarn bobbins placed on the carrying plate; the unwinding assembly is fixed to the transverse support and used for unwinding the fiber yarn bobbins. According to the utility model, the weighing assembly is arranged on the transverse bracket and is used for weighing the fiber bobbins placed on the carrier plate, and after the fiber bobbins are unwound, the reading of the display connected with the pressure sensor becomes 0, and at the moment, an operator only needs to replace the fiber bobbins, so that the labor burden of the operator is reduced, and the production efficiency is improved. And moreover, the fiber spools can be replaced in the first time, and the pultrusion production efficiency of the composite material frame is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pultrusion equipment, and in particular relates to a fiber yarn drum weighing structure for composite material frame pultrusion equipment. Background Art

[0002] Fiber reinforced composites are composite materials formed by winding, molding or pultrusion of reinforcing fiber materials, such as glass fiber, carbon fiber, aramid fiber, basalt fiber, etc., with matrix materials. According to the different reinforcing materials, common fiber reinforced composites are divided into glass fiber reinforced composites (GFRP), carbon fiber reinforced composites (CFRP), aramid fiber reinforced composites (AFRP) and basalt fiber composites (CBF).

[0003] Glass fiber is a filament drawn from molten glass quickly. It can be divided into alkali, alkali-free, medium alkali and special glass fibers, such as high silica and quartz fibers, according to the raw material components. Commonly used glass fiber composite materials generally refer to resin (such as epoxy resin, phenolic resin, unsaturated polyethylene resin, etc.) based composite materials, which can be formed by hand lay-up, winding, pressing and other molding processes, or injection and pultrusion molding processes. Glass fiber reinforced composite materials can be widely used in manual machinery, chemical industry, transportation and other fields due to their light weight, corrosion resistance, insulation and other characteristics.

[0004] like Figure 1 The figure shows the process flow of the pultrusion process. The glass fiber bundle is drawn from the pultrusion yarn frame, and then introduced into the injection box for impregnation after passing through the yarn guide plate. The impregnated glass fiber bundle enters the mold for molding and curing, and continuously produces continuous fiber composite material frames of unlimited length. Finally, it is pulled to the cutting table by a traction machine and cut into different lengths according to customer needs. This process is most suitable for producing FRP profiles of various cross-sectional shapes, such as rods, tubes, solid profiles (I-shaped, slotted, square profiles) and hollow profiles (door and window profiles, blades), etc.

[0005] Before the pultrusion process is carried out, the fiber yarn bobbin needs to be placed on the pultrusion yarn rack. The pultrusion die in the front continuously pulls the glass fiber bundle, that is, the fiber yarn bobbin to unwind. When a roll of fiber yarn bobbin is unwound, the operator needs to replace the new fiber yarn bobbin in time, otherwise it will affect the normal operation of the pultrusion equipment.

[0006] In the prior art, the operator cannot accurately know when the fiber yarn bobbin is unwound, so the operator needs to frequently check the yarn rack. This increases the operator's workload, and the operator cannot replace the fiber yarn bobbin in the first place, which affects the normal movement of the pultrusion equipment and further affects the production efficiency of the composite material frame. Utility Model Content

[0007] The utility model provides a fiber yarn drum weighing structure for composite material frame pultrusion equipment, which solves the defect in the prior art that the operator cannot accurately know when the fiber yarn drum is unwound, and the operator needs to frequently go to the yarn rack to check, which increases the labor burden of the operator and affects the production efficiency of the composite material frame.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a fiber yarn drum weighing structure for composite material frame pultrusion equipment, which comprises:

[0009] Vertical support;

[0010] A horizontal bracket, wherein the horizontal bracket is mounted on the vertical bracket in an adjustable manner;

[0011] A weighing assembly, the weighing assembly comprising a fixing plate fixed to the top of the cross bracket, a carrier plate elastically mounted above the fixing plate, and a pressure sensor fixed to the top of the fixing plate, the pressure sensor weighing the fiber yarn bobbin placed on the carrier plate;

[0012] The unwinding assembly is fixed on the transverse support and is used for unwinding the fiber yarn tube.

[0013] Optimally, it further comprises an inner fixing hole penetrating the transverse support and an outer fixing hole penetrating the vertical support and arranged at intervals, wherein the outer fixing hole matches the inner fixing hole.

[0014] Optimally, the weighing assembly further comprises a fixing frame fixed to the bottom of the carrier plate, a guide column fixed to the top of the fixing plate and passing through the fixing frame, and a spring sleeved on the guide column, wherein the spring is pressed between the fixing plate and the fixing frame.

[0015] Optimally, the weighing assembly also includes a stop block fixed at the bottom of the carrier plate, a carrier slot opened at the top of the carrier plate, and an anti-slip plate fixed at the top of the guide column, the diameter of the anti-slip plate is larger than the diameter of the guide column, and the fiber yarn tube is placed in the carrier slot.

[0016] Optimally, the unwinding assembly includes an adjustment plate installed at the bottom of the cross bracket in an angle-adjustable manner, an unwinding shaft rotatably installed on the adjustment plate, and an unwinding wheel sleeved on the unwinding shaft.

[0017] Optimally, the unwinding wheel includes an unwinding wheel body, a blocking wheel integrally connected to both sides of the unwinding wheel body, a blocking portion obliquely arranged on the inner side of the blocking wheel, and an anti-slip protrusion arranged on the outer side wall of the unwinding wheel body, and the diameter of the blocking wheel is larger than the diameter of the unwinding wheel body.

[0018] Optimally, the fixing frame includes a supporting plate fixed to the bottom of the carrier plate and a pressing plate fixed to the bottom of the supporting plate, and the guide column passes through the pressing plate.

[0019] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0020] The fiber yarn drum weighing structure for composite frame pultrusion equipment of the utility model is provided with a weighing assembly on a horizontal bracket to weigh the fiber yarn drum placed on a carrier plate. When the fiber yarn drum is unwound, the display number connected to the pressure sensor becomes 0, and the operator can replace the fiber yarn drum at this time, thereby reducing the labor burden of the operator, and the replacement of the fiber yarn drum can be completed in the first time, thereby improving the pultrusion production efficiency of the composite frame;

[0021] Furthermore, by providing an adjustable horizontal bracket, the distance between two adjacent horizontal brackets can be changed to meet the needs of placing fiber yarn bobbins of different heights;

[0022] Furthermore, a swinging adjustment plate is provided to avoid the fiber yarn tube below, thereby preventing interference and failure of normal unwinding. At the same time, the position of the adjustment plate is adjusted according to different unwinding progresses to avoid the glass fiber bundle from being stuck during unwinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the pultrusion process;

[0024] Figure 2 It is a schematic diagram of the positions of the pultrusion creel and the fiber yarn bobbin;

[0025] Figure 3 It is a partial structural schematic diagram of the utility model;

[0026] Figure 4 It is a partial structural schematic diagram of the utility model;

[0027] Figure 5 For this utility model Figure 4 A cross-sectional view of

[0028] Figure 6 This is a schematic diagram of the structure of the unwinding wheel of the utility model;

[0029] Figure 7 It is a cross-sectional view of the unwinding wheel of the utility model;

[0030] Figure 8 It is a schematic diagram of unwinding of the unwinding assembly of the utility model;

[0031] Description of reference numerals:

[0032] 1. Horizontal bracket; 2. Inner fixing hole; 3. Vertical bracket; 4. Outer fixing hole; 5. Adjustment plate; 6. Adjustment cylinder; 7. Unwinding shaft; 8. Unwinding wheel; 801. Unwinding wheel body; 802. Stop wheel; 803. Stop part; 804. Anti-skid protrusion; 9. Fixed plate; 10. Guide column; 11. Anti-slip plate; 12. Pressing plate; 13. Support plate; 14. Carrying plate; 15. Carrying slot; 16. Spring; 17. Pressure sensor; 18. Stop block. DETAILED DESCRIPTION

[0033] The utility model is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0034] like Figure 1 The figure shows a schematic diagram of the pultrusion process. The glass fiber bundle is drawn out from the pultrusion yarn frame, and is introduced into the glue injection box for impregnation after passing through the yarn guide plate. The impregnated glass fiber bundle enters the mold for forming and curing, and continuously produces continuous fiber composite material frames of unlimited length. Finally, it is pulled to the cutting table by a traction machine and cut into different lengths according to customer needs.

[0035] like Figure 2 As shown, it is a positional relationship diagram of a fiber yarn bobbin and a yarn rack. The yarn rack includes a horizontal bracket 1 and a vertical bracket 3. The horizontal bracket 1 and the vertical bracket 3 are cross-fixed to form a yarn rack with multiple accommodating cavities. The fiber yarn bobbin to be unwound is placed in the accommodating cavity.

[0036] like Figure 3 As shown, the horizontal bracket 1 and the vertical bracket 3 are arranged crosswise, and the horizontal bracket 1 and the vertical bracket 3 are perpendicular to each other. The horizontal bracket 1 is provided with an internal fixing hole 2, and the vertical bracket 3 is provided with multiple groups of external fixing holes 4 at intervals, and the internal fixing holes 2 are matched with the external fixing holes 4. During actual installation, the fastening bolts are passed through the external fixing holes 4 and the internal fixing holes 2 in sequence, and the other side is fixed with a fastening nut. By providing multiple groups of external fixing holes 4 on the vertical bracket 3, the position of the horizontal bracket 1 can be adjusted, thereby changing the distance between two adjacent horizontal brackets 1 to meet the placement of fiber yarn tubes of different heights.

[0037] like Figure 4 , 5 As shown, it is a schematic diagram of the structure of the weighing assembly, which is fixed on the horizontal bracket 1 and is used to weigh the fiber yarn tube, so that the staff can judge the remaining amount of the glass fiber bundle on the fiber yarn tube, so as to replace the fiber yarn tube in time (the glass fiber bundle is wound into a tube shape to form a fiber yarn tube).

[0038] The weighing assembly includes a fixed plate 9, a guide column 10, an anti-slip plate 11, a pressure plate 12, a support plate 13, a carrier plate 14, a carrier slot 15, a spring 16, a pressure sensor 17 and a stop block 18. The fixed plate 9 is fixed to the cross bracket 1 by screw fastening, and the pressure sensor 17 is fixed to the top of the fixed plate 9 for weighing the fiber yarn tube to be unwound. The pressure sensor 17 is electrically connected to an external display, and the pressure sensor 17 can sense the pressure of the fiber yarn tube and display the pressure value through the display, which is convenient for the staff to observe and replace the fiber yarn tube in time.

[0039] There are at least two guide posts 10 fixed on the top of the fixed plate 9. The guide posts 10 are symmetrically distributed on both sides of the pressure sensor 17 to guide the movement of the carrier plate 14. During the unwinding process of the glass fiber harness, the carrier plate 14 is prevented from tilting left and right, which affects the unwinding of the glass fiber harness.

[0040] The pressing plate 12 is sleeved on the guide column 10 and can move up and down along the guide column 10. The support plate 13 is fixed on both sides of the pressing plate 12 and extends toward the side away from the guide column 10 (the pressing plate 12 and the support plate 13 form a "[" structure with the opening facing upward). The spring 16 is sleeved on the guide column 10, and the two sides of the spring 16 are respectively pressed between the fixed plate 9 and the pressing plate 12. The spring 16 is used to reset the carrier plate 14. The stop block 18 is fixed to the bottom of the carrier plate 14 and cooperates with the pressure sensor 17 below to complete the weighing of the fiber yarn tube.

[0041] When the fiber yarn tube is placed on the carrier plate 14, under the action of gravity, the fiber yarn tube will press the carrier plate 14 downward until the stop block 18 at the bottom of the carrier plate 14 presses on the pressure sensor 17 below. At this time, the pressure sensor 17 can sense the pressure of the fiber yarn tube and display the pressure value on the display to facilitate observation by the staff (at the same time, the spring 16 is compressed); as the fiber yarn tube is gradually unwound, the weight of the fiber yarn tube gradually decreases. After the fiber yarn tube is unwound, due to the lack of external force on the carrier plate 14, the carrier plate 14 is lifted up under the action of the spring 16. At this time, the stop block 18 is separated from the pressure sensor 17, and the pressure value on the display becomes 0. The staff can replace the new fiber yarn tube in time.

[0042] The support plate 13 is used to fix and support the carrier plate 14 on the one hand, and on the other hand, to support the carrier plate 14 away from the guide column 10 to ensure a certain distance between the guide column 10 and the carrier plate 14 and to ensure that there is space for the carrier plate 14 to descend.

[0043] The anti-slip plate 11 is fixed on the top of the guide column 10 , and the diameter of the anti-slip plate 11 is larger than the diameter of the guide column 10 , so as to prevent the pressing plate 12 from slipping off the top of the guide column 10 during the resetting of the carrier plate 14 .

[0044] The loading groove 15 is opened on the top of the carrier plate 14, and the fiber yarn bobbin to be unwound is placed on the loading groove 15. The loading groove 15 limits the fiber yarn bobbin to prevent the fiber yarn bobbin from tilting or falling during unwinding, thereby affecting the unwinding of the glass fiber bundle.

[0045] like Figure 3 The figure shows a schematic diagram of the structure of the unwinding assembly, which is used to unwind the fiber yarn tube on the weighing assembly, and includes an adjusting plate 5, an adjusting cylinder 6, an unwinding shaft 7 and an unwinding wheel 8. One side of the adjusting plate 5 is rotatably connected to the bottom of the cross bracket 1 through a pin, the cylinder body of the adjusting cylinder 6 is rotatably connected to the bottom of the cross bracket 1 through a pin, and the piston rod of the adjusting cylinder 6 is rotatably connected to the side of the adjusting plate 5 away from the cross bracket 1 through a pin, so when the adjusting cylinder 6 pushes the piston rod to make a linear motion, it will drive the adjusting plate 5 to swing at the bottom of the cross bracket 1 (i.e., change the angle between the adjusting plate 5 and the cross bracket 1).

[0046] When facing fiber yarn tubes of different heights, the position of the adjusting plate 5 is adjusted to avoid the fiber yarn tube below to avoid interference and failure of normal unwinding. At the same time, the position of the adjusting plate 5 is adjusted according to different unwinding progress to avoid the glass fiber bundle from being stuck during unwinding.

[0047] The unwinding shaft 7 is rotatably mounted on the adjusting plate 5 through a bearing, and the unwinding wheel 8 is sleeved on the unwinding shaft 7. During actual unwinding, the glass fiber bundle on the fiber yarn drum bypasses the unwinding wheel 8 and finally enters the glue injection box through the yarn guide plate. The unwinding wheel 8 is used to change the unwinding path of the glass fiber bundle to prevent the glass fiber bundle from being directly drawn out of the fiber yarn drum and extending to the yarn guide plate, thereby preventing the glass fiber bundle from being torn during unwinding.

[0048] like Figure 8 As shown, during actual unwinding, the glass fiber bundle is unwound from the inside to the outside, that is, the unwinding component starts to extract the glass fiber bundle from the center of the fiber yarn drum, and unwinds it layer by layer from the inside to the outside, which is more stable during unwinding and avoids the fiber yarn drum from rotating and affecting the unwinding.

[0049] like Figure 6 , 7 , which is a schematic diagram of the structure of the unwinding wheel 8, the unwinding wheel 8 comprises an unwinding wheel body 801, a blocking wheel 802, a blocking portion 803 and an anti-slip protrusion 804. The unwinding wheel body 801 is sleeved on the unwinding shaft 7, and rotates synchronously with the rotation of the unwinding shaft 7, the blocking wheel 802 is integrally connected to both sides of the unwinding wheel body 801, and the diameter of the blocking wheel 802 is greater than the diameter of the unwinding wheel body 801.

[0050] When the glass fiber harness is unwinding, the glass fiber harness on the unwinding wheel body 801 is resisted and limited by the resisting wheel 802 to prevent the glass fiber harness from being separated from the unwinding wheel body 801 .

[0051] The stopper 803 is tiltedly arranged on the inner side of the stopper wheel 802, and the stopper 803 is arranged to meet the requirements of unwinding glass fiber bundles with different diameters. The anti-slip protrusion 804 is integrally arranged on the outer wall of the unwinding wheel body 801. When unwinding the glass fiber bundle, the pultrusion die in front continuously pulls the glass fiber bundle, and the glass fiber bundle drives the unwinding wheel 8 to rotate, and then the glass fiber bundle is pulled out from the center of the fiber yarn tube for unwinding.

[0052] The anti-skid protrusions 804 can increase the contact area with the glass fiber harness and improve the friction force, thereby preventing the glass fiber harness from slipping with the unwinding wheel 8 during unwinding, causing the glass fiber harness to slip off from both sides of the unwinding wheel 8.

[0053] Place the fiber yarn drum vertically on the carrier plate 14, and then draw the glass fiber bundle from the center of the fiber yarn drum. It is more stable when unwinding, and the fiber yarn drum will not rotate. After the fiber yarn drum is unwound, the carrier plate 14 is pushed back to its original position under the action of the spring 16, and the operator can replace the new fiber yarn drum in time.

[0054] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A fiber yarn drum weighing structure for composite frame pultrusion equipment, characterized in that: It includes: Vertical support (3); A transverse support (1), wherein the transverse support (1) is mounted on the vertical support (3) in a height-adjustable manner; A weighing assembly, the weighing assembly comprising a fixing plate (9) fixed to the top of the cross support (1), a carrier plate (14) elastically mounted above the fixing plate (9), and a pressure sensor (17) fixed to the top of the fixing plate (9), the pressure sensor (17) weighing a fiber yarn bobbin placed on the carrier plate (14); An unwinding assembly is fixed on the transverse support (1) and is used for unwinding a fiber yarn bobbin.

2. A fiber yarn drum weighing structure for composite frame pultrusion equipment according to claim 1, characterized in that: It also comprises an inner fixing hole (2) penetrating the horizontal bracket (1) and outer fixing holes (4) penetrating the vertical bracket (3) and arranged at intervals, wherein the outer fixing holes (4) match the inner fixing holes (2).

3. The fiber yarn drum weighing structure for composite frame pultrusion equipment according to claim 1 is characterized in that: The weighing assembly also includes a fixing frame fixed to the bottom of the carrier plate (14), a guide column (10) fixed to the top of the fixing plate (9) and passing through the fixing frame, and a spring (16) sleeved on the guide column (10), wherein the spring (16) is pressed between the fixing plate (9) and the fixing frame.

4. A fiber yarn drum weighing structure for composite material frame pultrusion equipment according to claim 3, characterized in that: The weighing assembly also includes a stopper (18) fixed at the bottom of the carrier plate (14), a carrier groove (15) opened at the top of the carrier plate (14), and an anti-slip plate (11) fixed at the top of the guide column (10), wherein the diameter of the anti-slip plate (11) is greater than the diameter of the guide column (10), and the fiber yarn tube is placed in the carrier groove (15).

5. The fiber yarn drum weighing structure for composite frame pultrusion equipment according to claim 1 is characterized in that: The unwinding assembly comprises an adjustment plate (5) mounted at the bottom of a horizontal bracket (1) in an angle-adjustable manner, an unwinding shaft (7) rotatably mounted on the adjustment plate (5), and an unwinding wheel (8) sleeved on the unwinding shaft (7).

6. A fiber yarn drum weighing structure for composite material frame pultrusion equipment according to claim 5, characterized in that: The unwinding wheel (8) comprises an unwinding wheel body (801), a blocking wheel (802) integrally connected to both sides of the unwinding wheel body (801), a blocking portion (803) obliquely arranged on the inner side of the blocking wheel (802), and an anti-slip protrusion (804) arranged on the outer side wall of the unwinding wheel body (801), and the diameter of the blocking wheel (802) is larger than the diameter of the unwinding wheel body (801).

7. The fiber yarn drum weighing structure for composite material frame pultrusion equipment according to claim 3 is characterized by: The fixing frame comprises a support plate (13) fixed to the bottom of a carrier plate (14) and a pressing plate (12) fixed to the bottom of the support plate (13), and the guide column (10) passes through the pressing plate (12).

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