Determinant three-dimensional knitting machine

Abstract

The utility model discloses a determinant three-dimensional braiding machine which comprises a control device, a rack, a driving device, a yarn carrier pushing device and a plurality of slivers, each sliver is provided with a plurality of moving grooves used for installing free yarn carriers, and the control device is in communication connection with the driving device. The driving device is connected with the yarn carrier pushing device, a working groove is formed in the machine frame, the yarn carrier pushing device is installed on the outer wall of the working groove, and the yarn carrier pushing device is used for pushing the slivers or the free yarn carriers to move. The device is characterized in that a plurality of sliding grooves which are evenly distributed are formed in the groove bottom of the working groove, rolling pieces are arranged in the sliding grooves, moving grooves are formed in the bottoms of the strips, and the moving grooves are matched with the rolling pieces so that the strips can slide on the rolling pieces; and shutdown renovation of the machine is avoided, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of three-dimensional weaving, and in particular relates to a determinant three-dimensional weaving machine. Background Art

[0002] Three-dimensional braiding technology is considered one of the most advanced composite material manufacturing technologies in the world. In recent years, it has been widely used in aviation, aerospace, automobiles, ships and other fields. However, there are significant deficiencies in the design of the yarn carriers on traditional 3D braiding machines. Most yarn carriers are placed directly on the chassis, which is designed with tracks for the yarn carriers to move. During movement, the yarn carriers rub against the chassis, affecting the machine's operating efficiency. In addition, due to problems with manufacturing precision or process level, the yarn carriers often collide and become misaligned during vertical and horizontal movement, causing jams and damage to the machine. In addition, the operation process is noisy and vibrates loudly, which increases the labor intensity and risk level of workers. On the one hand, it increases the production intensity and risk level of workers, and on the other hand, it requires production to be suspended for inspection and maintenance, which results in time-consuming and labor-intensive work and reduces production efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a determinant three-dimensional braiding machine to solve the problems of low working efficiency and high labor intensity of workers in existing determinant three-dimensional braiding machines.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solution:

[0005] A matrix three-dimensional braiding machine includes a control device, a frame, a drive device, a yarn carrier pushing device and a plurality of strips, each of the strips has a plurality of motion grooves for installing free yarn carriers, the control device is communicatively connected to the drive device, the drive device is connected to the yarn carrier pushing device, the frame has a working groove, the yarn carrier pushing device is installed on the outer wall of the working groove, the yarn carrier pushing device is used to push the strips or free yarn carriers to move, a plurality of evenly distributed sliding grooves are provided on the bottom of the working groove, a rolling element is provided in each of the sliding grooves, and a motion groove is provided at the bottom of each strip, the motion groove matches the rolling element, so that the strips can slide on the rolling element.

[0006] Preferably, the rolling element is a ball or a roller.

[0007] Preferably, the number of the sliding slots is the same as the sum of the number of the movement slots of each of the strips.

[0008] Preferably, each of the strips includes a bottom plate and two side plates, the two side plates are respectively connected to the two ends of the bottom plate, the movement groove is opened on the bottom end of the bottom plate, and the upper end of the bottom plate is connected to a plurality of evenly distributed connection frames, and movement grooves are formed between two adjacent connection frames, and between the connection frame close to the side plate and the side plate.

[0009] Preferably, the longitudinal cross-sectional shape of the moving groove is the same as the longitudinal cross-sectional shape of the free yarn carrier, both of which are convex shapes.

[0010] Preferably, each of the connecting frames is connected to at least one first roller, and the axial direction of each of the first rollers is arranged perpendicular to the length direction of the strips.

[0011] Preferably, at least one second roller is connected between the two adjacent connecting frames corresponding to the bottom plate, and at least one second roller is also connected between the connecting frame and the side plate, and the axial direction of each second roller is arranged parallel to the length direction of the strip.

[0012] Preferably, a first hook is provided at the upper end of each connecting frame.

[0013] Preferably, the yarn carrier pushing device includes a motion push rod and a motion push rod switch, one end of the motion push rod is connected to the driving device, and the other end of the motion push rod is passed into the working groove to push the strip or free yarn carrier to move.

[0014] By adopting the above-mentioned design scheme, the beneficial effect of the utility model is: by opening a plurality of evenly distributed sliding grooves on the bottom of the working groove, a rolling element is arranged in the sliding groove, and the yarn carrier is installed on the strip, the bottom of the strip has a motion groove matching the rolling element, so that the strip can slide on the rolling element, reducing the friction of the strip during the sliding process, so that the strip will not get stuck or damage the machine during the sliding process, avoiding the machine's shutdown and maintenance, and effectively improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a matrix three-dimensional braiding machine of the present invention;

[0016] Figure 2 For this utility model Figure 1 Enlarged view of area A in the middle;

[0017] Figure 3 This is a schematic structural diagram of the strips of the matrix three-dimensional braiding machine of the present invention;

[0018] Figure 4 A schematic diagram of a bearing according to the present invention;

[0019] In the figure,

[0020] 1. Control device; 2. Frame; 3. Rolling element; 4. Motion push rod; 5. Free yarn carrier; 6. Sliver; 7. Driving device; 8. Yarn carrier pushing device; 9. First hook; 10. Roller; 11. Second hook; 12. Motion groove; 13. Motion slot; 14. Buckle; 15. Fixed yarn carrier; 16. Yarn carrier; 17. Motion push rod switch. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0022] like Figure 1-Figure 4 As shown, a matrix three-dimensional braiding machine includes a control device 1, a frame 2, a driving device 7, a yarn carrier pushing device 8, a frame 2 and a plurality of strips 6, and also includes a yarn carrier 16, which includes a self-owned yarn carrier 5 and a stationary yarn carrier 15.

[0023] Each sliver 6 has a motion groove 13 for installing a free yarn carrier 5, the control device 1 is communicated with the drive device 7, the drive device 7 is connected to the yarn carrier pushing device 8, the frame 2 has a working groove, the yarn carrier pushing device 8 is installed on the outer wall of the working groove, and the yarn carrier pushing device 8 is used to push the sliver 6 or the free yarn carrier 5 to move; the control device 1 is used to send instructions to the drive device 7 according to the yarn movement trajectory according to the weaving requirements of the fabric, and manipulate the motion push rod 7 in the yarn carrier pushing device 8 through the drive device 7 to push the sliver 6 or the free yarn carrier 5 to move, thereby completing the movement of the yarn carrier.

[0024] The bottom of the working groove is provided with a plurality of evenly distributed sliding grooves, each of which is provided with a rolling element 3. The bottom of each strip 6 is provided with a motion groove 12, which matches the rolling element 3, allowing the strip 6 to slide on the rolling element 3.

[0025] In this embodiment, the driving device 7 can be in the form of, but not limited to, a pneumatic device, a hydraulic device, etc., and the rolling element can be in the form of, but not limited to, a ball or a roller.

[0026] In this embodiment, each strip 6 includes a bottom plate and two side plates, and the two side plates are respectively connected to the two ends of the bottom plate. The movement groove 12 is opened on the bottom end of the bottom plate. The upper end of the bottom plate is connected to a plurality of evenly distributed connecting frames. Movement grooves are formed between two adjacent connecting frames, and between the connecting frame close to the side plate and the side plate. The longitudinal cross-sectional shape of the movement groove is the same as the longitudinal cross-sectional shape of the free yarn carrier 5, both of which are convex. The movement groove is used to install the free yarn carrier 5, and the number of sliding grooves is the same as the sum of the number of movement grooves of each strip 6.

[0027] In this embodiment, the three-dimensional braiding machine further includes rollers 10, which include first and second rollers. Each connecting frame is connected to at least one first roller, and the axial direction of each first roller is perpendicular to the length direction of the strip 6. At least one second roller is connected between the bottom plate and the two adjacent connecting frames, and at least one second roller is also connected between the connecting frame and the side plate. The axial direction of each second roller is parallel to the length direction of the strip 6. By arranging the rollers 10 on the connecting frame and the bottom plate, the friction between the free yarn carrier 5 and the strip 6 is reduced when the free yarn carrier 5 moves along the width direction of the strip 6.

[0028] In this embodiment, three rollers are connected to the connection frame and the bottom plate. Each roller includes a cylinder and a fixing rod. Each fixing rod is provided with a buckle 14. Each roller is connected to the connection frame or the bottom plate through the buckle 14.

[0029] A first hook 9 is provided at the upper end of each connecting frame, which can be used as a fixed yarn carrier 15 for three-dimensional five-directional, three-dimensional six-directional or other multi-directional three-dimensional fabrics. The upper end of each free yarn carrier 5 is connected with a second hook 11. The cross-section of the free yarn carrier 5 is circular, and the diameter and height of the free yarn carrier 5 correspond one-to-one with the diameter and height of the moving groove 13. The free yarn carrier 5 is embedded in the moving groove 13. The material of the free yarn carrier 5 can be single but not limited to metal or plastic.

[0030] The yarn carrier pushing device 8 includes a motion push rod 4 and a motion push rod switch 17. One end of the motion push rod 4 is connected to the driving device 7 through a pipe, and the other end of the motion push rod 4 is passed into the working groove to push the strip 6 or the free yarn carrier to move. The motion push rod switch 17 is installed on the pipe. Its function is to control the movement of the motion push rod 4 through the motion push rod switch 17. The motion push rod switch 17 can be used as but not limited to a valve or switch.

[0031] In this embodiment, each motion push rod switch 4 is mounted on the outer wall of the working tank. The motion push rod switch 17 is selected according to the driving device 7 used. If a pneumatic device is used as the driving device 7, a conventional air intake valve is used as the motion push rod switch 17. If a hydraulic device is used as the driving device 7, a conventional hydraulic valve is used as the motion push rod switch 17. Each motion push rod 4 of the knitting machine is connected to a motion push rod switch 17 for individually controlling the movement of each motion push rod 4.

[0032] The working principle of this matrix three-dimensional braiding machine is as follows: through the instructions issued by the control device 1, the driving device 7 is controlled to operate the yarn carrier pushing device 8, and the yarn carrier pushing device 8 pushes the motion push rod 7 to move according to the command of the control device 1, and the motion push rod 7 pushes the yarn carrier 16 or the strip 6 to move, and the operation is repeated to complete the weaving of the three-dimensional preform.

[0033] To sum up, by opening a plurality of evenly distributed sliding grooves on the bottom of the working groove, setting a rolling element 3 in the sliding groove, and installing the yarn carrier 16 on the strip 6, the bottom of the strip 6 has a motion groove 12 that matches the rolling element 3, so that the strip 6 can slide on the rolling element 3, reducing the friction of the strip 6 during the sliding process, so that the strip 6 will not get stuck or damage the machine during the sliding process, avoiding the machine's shutdown and maintenance, and effectively improving production efficiency.

[0034] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A matrix three-dimensional braiding machine, comprising a control device, a frame, a drive device, a yarn carrier pusher, and a plurality of strips, each of the strips having a plurality of motion slots for mounting free yarn carriers, the control device being communicatively connected to the drive device, the drive device being connected to the yarn carrier pusher, the frame having a working slot, the yarn carrier pusher being mounted on an outer wall of the working slot, the yarn carrier pusher being used to push the strips or free yarn carriers to move, characterized in that: A plurality of evenly distributed sliding grooves are provided on the bottom of the working groove, and a rolling element is provided in each sliding groove. A motion groove is provided at the bottom of each strip, and the motion groove matches the rolling element so that the strip can slide on the rolling element.

2. The matrix three-dimensional braiding machine according to claim 1, characterized in that: The rolling element is a ball or a roller.

3. A matrix three-dimensional braiding machine according to claim 1 or 2, characterized in that: The number of the sliding slots is the same as the sum of the number of the movement slots of each of the strips.

4. The matrix three-dimensional braiding machine according to claim 1, characterized in that: Each of the strips includes a bottom plate and two side plates, and the two side plates are connected to the two ends of the bottom plate respectively. The movement groove is opened on the bottom end of the bottom plate, and the upper end of the bottom plate is connected to a plurality of evenly distributed connection frames. Movement grooves are formed between two adjacent connection frames, and between the connection frame close to the side plate and the side plate.

5. The matrix three-dimensional braiding machine according to claim 4, characterized in that: The longitudinal section shape of the movement groove is the same as that of the free yarn carrier, both of which are convex.

6. A matrix three-dimensional braiding machine according to claim 4 or 5, characterized in that: Each of the connecting frames is connected to at least one first roller, and the axial direction of each of the first rollers is perpendicular to the length direction of the strips.

7. The matrix three-dimensional braiding machine according to claim 4, characterized in that: At least one second roller is connected between the bottom plate and the two adjacent connecting frames, and at least one second roller is also connected between the connecting frame and the side plate. The axial direction of each second roller is arranged parallel to the length direction of the strip.

8. The matrix three-dimensional braiding machine according to claim 4, characterized in that: The upper end of each connecting frame is provided with a first hook.

9. The matrix three-dimensional braiding machine according to claim 1, characterized in that: The yarn carrier pushing device includes a motion push rod and a motion push rod switch, one end of the motion push rod is connected to the driving device, and the other end of the motion push rod is passed into the working groove to push the strip or free yarn carrier to move.

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