Yarn creel for placing yarn roll
By designing a yarn rack structure that connects the yarn end to end and uses fixed fixtures and connecting components to stabilize the yarn roll, the problems of yarn crossing and knotting and manual inspection are solved, achieving stable yarn output from the yarn roll and improving production efficiency.
Patent Information
- Application Number
- CN202423202039.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The existing yarn rack is prone to yarn tangling and knotting during the yarn roll rotation process, and manual inspection is required to prevent the yarn roll from clogging, which increases the burden on the staff.
Design a yarn frame structure that allows the yarn rolls to be joined end to end in advance, and stabilizes the yarn rolls with fixing fixtures and connecting components to prevent the yarn from crossing or knotting during rotation, thus reducing manual intervention.
This achieves stable yarn output, reduces the risk of yarn roll blockage, lowers the frequency of manual inspections, and improves production stability and efficiency.
Smart Images
Figure CN223573889U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of composite material production, especially relates to a creel for placing yarn roll. BACKGROUND
[0002] Composite material pultrusion is an advanced composite material forming process, mainly used for producing products of reinforcing materials such as glass fiber and carbon fiber. In the process of composite material pultrusion production, the arrangement of yarn plays a crucial role. Each yarn roll is pulled out through a respective yarn hole, introduced into a mold, mixed with resin, and then pulled out by a traction machine. The arrangement of yarn mainly depends on the arrangement of the creel. If the arrangement is unreasonable, it may cause yarn blockage and further problems in the subsequent process. Yarn can be divided into two types according to the extraction position: outer extraction yarn roll and inner extraction yarn roll. For outer extraction yarn roll, the commonly used creel is a horizontal hanging structure. The working mode is to place the yarn roll on a horizontal circular rod and pull the yarn of the yarn roll out along the tangent direction of the circular rod. In order to control the tension of the yarn roll, the horizontal circular rod often uses a tension cylinder core to control the speed of the yarn roll and the tension of the yarn.
[0003] However, this method has the following disadvantages:
[0004] First, it cannot connect the yarn in advance. During production, the entire yarn roll is constantly rotating. Therefore, connecting the yarn in advance may cause the new yarn to also rotate with the yarn roll, forming a dead knot or crossing with the yarn being pulled out.
[0005] Second, it is necessary to increase the frequency of inspection or use alarm devices to reduce the risk of abnormality in the subsequent process due to the failure to timely replace the yarn. INVENTION CONTENTS
[0006] To solve the above technical problems, the utility model provides a creel for placing a yarn roll, which can connect the yarn roll in advance. One spare yarn roll is used to achieve the purpose of connecting the yarn in advance, without relying on the timely discovery of the staff, thereby reducing the burden on the staff.
[0007] Specifically, the utility model discloses a creel for placing a yarn roll, which comprises:
[0008] a yarn roll, the yarn head and the yarn tail of the yarn on the yarn roll are exposed;
[0009] a frame body, the frame body has a plurality of fixing tools for placing the yarn roll, a yarn rod for limiting the downward displacement of the yarn roll, and a yarn passing plate allowing the yarn to pass through, the fixing tools are connected to the frame body through a connecting assembly, the yarn rod is connected to the frame body and is arranged above each group of fixing tools, and the yarn passing plate is connected to the frame body and is arranged on one side of the yarn rod; wherein,
[0010] The fixed toolings are arranged on the layers of the frame body in sequence, two adjacent fixed toolings form a group, and the yarns of the yarn rolls above the two fixed toolings are connected end to end and are led out through the yarn rods and the threading plates.
[0011] Further, the fixed tooling comprises a supporting bottom plate, a placing bottom plate and a column, the supporting bottom plate is arranged below the placing bottom plate, the column is arranged above the placing bottom plate, and the diameter of the column is smaller than the diameter of the winding drum of the yarn roll.
[0012] Further, two adjacent fixed toolings in front and back form a group.
[0013] Further, the yarn roll and the layer are arranged in an inclined manner, and the Z-directional projection of the gravity center of the yarn roll is within the Z-directional projection range of the supporting bottom plate.
[0014] Further, the connecting assembly comprises a supporting vertical plate, one end of the supporting vertical plate is connected with the supporting bottom plate, and the other end is connected with the frame body.
[0015] Further, the connecting assembly comprises a side vertical plate and a connecting bottom plate, the side vertical plate is arranged on the two sides of the frame body, the connecting bottom plate is arranged below the supporting bottom plate, and the side vertical plate is rotatably connected with the connecting bottom plate through a right-angle plate and a fastening bolt.
[0016] Further, the included angle between the straight line where the generatrix of the winding drum is located and the straight line where the outer edge of the winding drum and the yarn rod or the threading plate are connected is less than or equal to 30°, and the included angle between the supporting bottom plate and the bottom surface of the frame body is less than or equal to 45°.
[0017] Further, two adjacent fixed toolings on the left and right form a group.
[0018] Further, the yarn roll and the layer are arranged in a horizontal manner.
[0019] Further, the included angle between the straight line where the generatrix of the winding drum is located and the straight line where the outer edge of the winding drum and the yarn rod are connected is less than or equal to 30°.
[0020] The beneficial effects of the present application are as follows:
[0021] The arrangement of the yarn roll and the yarn frame can connect the yarns end to end in advance, and one spare is used, and the staff need not to patrol the yarn, and the arrangement of the fixed tooling improves the stability of the yarn roll, thereby improving the stability of the yarn roll when the yarn is led out. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced.
[0023] Figure 1 is a schematic view of a creel for placing a yarn package;
[0024] Figure 2 is a schematic view of a tilted arrangement of yarn packages;
[0025] Figure 3 is a partial enlarged view of a connecting assembly of the creel and a fixing tool for placing a yarn package;
[0026] Figure 4 is a schematic view of another embodiment of the connecting assembly;
[0027] Figure 5 is a partial enlarged view of another embodiment of the connecting assembly;
[0028] Figure 6 is a schematic view of the connection of yarns on a tilted yarn package;
[0029] Figure 7 is a sectional view of the fixing tool and the yarn package;
[0030] Figure 8 is a schematic view of a horizontal arrangement of yarn packages;
[0031] Figure 9 is a schematic view of the connection of yarns on a horizontal yarn package;
[0032] Figure 10 is a prior art structure.
[0033] In the drawings, the reference signs are as follows: yarn package 1, bobbin 11, creel body 2, partition layer 21, placement layer 22, fixing tool 3, support base plate 31, placement base plate 32, stand column 33, anti-shaking sleeve 34, avoiding hole 35, yarn rod 4, yarn passing plate 5, yarn passing hole 51, connecting assembly 6, support vertical plate 61, side vertical plate 62, connecting base plate 63, right-angle plate 64, included angle α, included angle β. DETAILED DESCRIPTION
[0034] The utility model will be described in further detail below with reference to the drawings.
[0035] As shown in Figures 1-10 The utility model discloses a creel for placing a yarn package, which comprises:
[0036] The yarn head and the yarn tail of the yarn on the yarn package 1 are exposed;
[0037] The frame 2 has several fixing fixtures 3 for placing the yarn roll 1, a yarn rod 4 to restrict the downward displacement of the yarn, and a yarn threading plate 5 to allow the yarn to pass through. The fixing fixtures 3 are connected to the frame 2 via connecting components 6. The yarn rod 4 is connected to the frame 2 and is located above each set of fixing fixtures 3. The yarn threading plate 5 is connected to the frame 2 and is located on one side of the yarn rod 4.
[0038] The fixed fixtures 3 are arranged sequentially on the partition 21 of the frame 2. Two adjacent fixed fixtures 3 form a group, and the yarn of the yarn roll 1 above them is connected end to end and led out through the yarn rod 4 and the yarn threading plate 5 to enter the next process.
[0039] This invention allows for the pre-connection of yarn rolls, providing a backup of one roll for use, thus achieving the goal of pre-connecting yarn without relying on timely detection by staff, thereby reducing the workload of staff.
[0040] To prevent interference between yarns connected end-to-end during transport, such as Figure 7 As shown, the yarn tail is drawn out from the lower inner layer of yarn roll 1 and connected to the yarn head of the next yarn roll 1.
[0041] There are various ways to set up the fixed fixture 3. Existing technology usually uses a column 33 to place the yarn roll 1, such as... Figure 10 As shown, the yarn hangs down under the influence of gravity. When the yarn is at the bottom of yarn roll 1, it may be pulled into the bottom of yarn roll 1 by external equipment. Figure 10 (Circled position) As the external equipment pulls further, the yarn may become entangled with the column 33, causing it to jam. To avoid this situation, the fixing fixture 3 can adopt the following structure, including a supporting base plate 31, a placement base plate 32, and a column 33. The supporting base plate 31 is located below the placement base plate 32, and the column 33 is located above the placement base plate 32. The diameter of the column 33 is smaller than the diameter of the yarn roll 1's drum 11. In this embodiment, the column 33 can be connected to the supporting base plate 31 by welding, threaded connection, or riveting. The fixing fixture 3 has a simple structure, is stable and reliable, and improves the stability of the yarn roll 1.
[0042] The height of the upright 33 should be less than the height of the drum 11, and should be controlled within the range of 1 / 2 to 2 / 3 of the height of the drum 11. When the height of the upright 33 exceeds the height of the drum 11, it is easy to interfere with the yarn roll 1. When the height of the upright 33 is less than 1 / 2, the yarn roll 1 is easy to detach from the upright 33 after leaning forward.
[0043] Because the column 33 and the roll 11 are fitted with a clearance, in order to reduce the swaying of the yarn roll 1 on the column 33, such as Figure 7As shown, a shock-absorbing sleeve 34 is provided between the yarn roll 1 and the column 33, and a clearance hole 35 is provided on the placement base plate 32 to accommodate the yarn that is squeezed out under force. The setting of the shock-absorbing sleeve 34 and the clearance hole 35 reduces the gap between the yarn roll 1 and the placement base plate 32.
[0044] The base plate 32 is preferably made of a flexible material, which can further reduce gaps and prevent vibration.
[0045] In some embodiments of this utility model, two adjacent fixing fixtures 3 form a group, and the yarn roll 1 and the partition layer 21 are arranged at an angle. In order to improve the stability of the yarn roll 1 when unloading yarn, the Z-direction projection of the center of gravity of the yarn roll 1 is within the Z-direction projection range of the supporting base plate 31. In this way, the yarn roll 1 will be more stable when rotating and will not cause shaking that would cause the fixing fixture 3 to tilt or sway.
[0046] If the fixing fixture 3 shakes during the movement of the yarn roll 1, a connecting component 6 is provided at the bottom of the fixing fixture 3 to improve its stability. Figure 3 As shown, the connecting component 6 includes a support plate 61. One end of the support plate 61 is connected to the support base plate 31, and the other end is fixedly connected to the frame 2. The support plate 61 fixes the fixing fixture 3 to the partition 21 of the frame 2, improving the stability of the fixing fixture 3. When installing the support plate 61, it should be installed as far back as possible to maximize the area of the right triangle formed by the support plate 61, the support base plate 31, and the partition 21. When the yarn roll 1 is brand new, the weight of the yarn roll is greater than the weight of the fixture, and the center of gravity is dominated by the yarn roll 1. When the yarn roll is almost used up, the weight of the yarn roll is less than the weight of the fixture, and the center of gravity is dominated by the fixture. Therefore, the most stable situation is when the projection of the center of gravity of the yarn roll 1 and the fixing fixture 3 as a whole is kept within the range of the front end of the support plate 61 and the support base plate 31.
[0047] In addition, such as Figure 5 As shown, the connecting component 6 can also have the following structure, including a side plate 62 and a connecting base plate 63. The side plate 62 is located on both sides of the partition 21 of the frame 2, and the connecting base plate 63 is located below the supporting base plate 31. The side plate 62 is rotatably connected to the connecting base plate 63 by a right-angle plate 64 and a fastening bolt (not shown). When it is necessary to adjust the angle of the yarn roll, loosen the fastening bolt and then rotate the fixing fixture 3 to adjust the angle of the yarn roll 1.
[0048] In some implementations, such as Figure 2In order to improve the smoothness of the yarn and reduce the swing range of the yarn roll 1, the angle a between the straight line where the generatrix of the roll 11 is located and the straight line where the outer edge of the roll 11 and the yarn rod 4 or the yarn passing plate 5 are connected is less than or equal to 30 degrees, and in addition, the angle β between the supporting bottom plate 31 and the bottom surface of the frame body 2 is less than or equal to 45 degrees, and the yarn passing hole 51 for the yarn to pass through is further arranged on the yarn passing plate 5, and after the yarn is led out on the yarn roll 1, the yarn passes through the yarn rod 4 above or / and the yarn passing hole 51 on the yarn passing plate 5 and is connected with external equipment. In the embodiment, the setting angle of the yarn roll 1 can be adjusted according to actual conditions within the set range.
[0049] In the process of the yarn roll 1 being led out, in order to avoid interference between the yarn and other structures, the projections of the supporting bottom plates 31 in the Z direction have no intersection, and the Z direction projections of the yarn roll 1 on the supporting bottom plates 31 also have no intersection with the Z direction projections of the front and rear supporting bottom plates 31.
[0050] In some embodiments of the utility model, the difference from the above-mentioned embodiments is that, as shown in Figure 8 、 9 The left and right adjacent two fixing tools 3 are a group, and at this time, the yarn roll 1 is horizontally arranged on the partition layer 21. At this time, the supporting assembly is not needed, and the fixing tool 3 is fixed on the partition layer 21.
[0051] In order to improve the smoothness of the yarn and reduce the swing range of the yarn roll 1, the angle a between the straight line where the generatrix of the roll 11 is located and the straight line where the outer edge of the roll 11 and the yarn rod 4 are connected is less than or equal to 30 degrees, and then the yarn is sequentially passed through the yarn rod 4 and the yarn passing plate 5.
[0052] In some embodiments, if it is needed to increase the tension of the yarn, the tensioning mechanism can be connected to the outside of the frame body 2 to realize the adjustment of the tension of the yarn.
[0053] In addition, in order to improve the capacity of the yarn roll on the frame body 2, the placing layer 22 is arranged at the bottom of the frame body 2 to improve the accommodation effect of the yarn roll.
[0054] It should be noted that only one yarn can pass through each yarn passing hole 51, and in order to avoid interference with other yarns, the yarn close to the inside of the frame body 2 needs to avoid the previous yarn when passing through the yarn passing hole 51.
[0055] For ordinary skilled persons in the art, without departing from the creative concept of the utility model, a plurality of deformations and improvements can be made, which all belong to the protection range of the utility model.
Claims
1. A yarn rack for holding yarn rolls, characterized in that, include: Yarn roll (1), wherein the yarn ends and yarn tails on the yarn roll (1) are exposed; A frame (2) having several fixing fixtures (3) for placing yarn rolls (1), yarn rods (4) for restricting downward displacement of the yarn, and yarn threading plates (5) for allowing the yarn to pass through. The fixing fixtures (3) are connected to the frame (2) via connecting components (6). The yarn rods (4) are connected to the frame (2) and are located above each set of fixing fixtures (3). The yarn threading plates (5) are connected to the frame (2) and are located on one side of the yarn rods (4). The fixing fixtures (3) are arranged sequentially on the partition (21) of the frame (2). Two adjacent fixing fixtures (3) form a group, and the yarn of the yarn roll (1) above them is connected end to end and led out through the yarn rod (4) and the yarn threading plate (5).
2. The yarn rack for placing yarn rolls according to claim 1, characterized in that, The fixed fixture (3) includes a supporting base plate (31), a placement base plate (32) and a column (33). The supporting base plate (31) is located below the placement base plate (32), and the column (33) is located above the placement base plate (32). The diameter of the column (33) is smaller than the diameter of the roll (11) of the yarn roll (1).
3. The yarn rack for placing yarn rolls according to claim 2, characterized in that, Two adjacent fixed fixtures (3) form a group.
4. The yarn rack for placing yarn rolls according to claim 3, characterized in that, The yarn roll (1) and the partition layer (21) are arranged at an angle, and the Z-direction projection of the center of gravity of the yarn roll (1) is within the Z-direction projection range of the supporting base plate (31).
5. The yarn rack for placing yarn rolls according to claim 4, characterized in that, The connecting component (6) includes a support plate (61), one end of which is connected to the support base plate (31) and the other end is connected to the frame (2).
6. The yarn rack for placing yarn rolls according to claim 4, characterized in that, The connecting assembly (6) includes a side plate (62) and a connecting base plate (63). The side plate (62) is located on both sides of the frame (2), and the connecting base plate (63) is located below the supporting base plate (31). The side plate (62) is rotatably connected to the connecting base plate (63) by a right-angle plate (64) and fastening bolts.
7. The yarn rack for holding yarn rolls according to claim 5 or 6, characterized in that, The angle α between the line containing the generatrix of the drum (11) and the line connecting the outer edge of the drum (11) and the yarn rod (4) or the yarn threading plate (5) is less than or equal to 30°; the angle β between the support base plate (31) and the bottom surface of the frame (2) is less than or equal to 45°.
8. The yarn rack for placing yarn rolls according to claim 2, characterized in that, The two adjacent fixed fixtures (3) form a group.
9. The yarn rack for holding yarn rolls according to claim 8, characterized in that, The yarn roll (1) and the partition layer (21) are arranged horizontally.
10. The yarn rack for holding yarn rolls according to claim 9, characterized in that, The angle α between the straight line containing the generatrix of the drum (11) and the straight line connecting the outer edge of the drum (11) and the yarn rod (4) is less than or equal to 30°.