A braiding machine using a pneumatic propulsion device

Abstract

The present invention relates to the technical field of three-dimensional textile product forming, and provides a braiding machine using a pneumatic propulsion device. The braiding platform comprises: a braiding platform, which is rectangular in shape as a whole, a plurality of limit units with the same structure are arranged inside the bottom plate of the braiding platform, and a plurality of groups of propulsion units are arranged at the edge of the bottom plate of the braiding platform; wherein the plurality of limit units are arranged along the horizontal and vertical linear arrays of the bottom plate, and the plurality of propulsion units are arranged along the peripheral edge of the bottom plate; four internal fixing blocks are arranged in each limit unit, and a pressing plate is arranged on the top of each internal fixing block, and the gaps between adjacent pressing plates form a first direction channel along the horizontal direction, and the gaps between adjacent pressing plates form a second direction channel along the longitudinal direction; a group of propulsion units is arranged corresponding to each first direction channel and the second direction channel. The beneficial effect is that the device can improve the overall braiding accuracy and braiding efficiency, realize the adjustment of different braiding processes, and give the braiding machine more flexibility.

Description

Technical Field

[0001] The invention relates to the technical field of three-dimensional textile product forming, and in particular to a knitting machine using a pneumatic propulsion device. Background Art

[0002] Three-dimensional weaving technology can realize the one-piece molding of three-dimensional fabrics with different cross-sectional shapes. The products produced have excellent structural integrity and can be used as reinforcements for lightweight and high-strength composite materials.

[0003] However, due to the limited development of 3D braiding machines, there are some problems: ① Currently, most 3D braiding machines are manual or semi-automatic, resulting in very low production efficiency of 3D braiding machines; ② The preparation process of the currently used braiding equipment is relatively fixed and has poor flexibility.

[0004] In addition, Chinese patent CN202010453367.4 discloses a braiding machine using an asymmetric cam push device, including a braiding machine, a transmission shaft, a rotating shaft, an asymmetric cam, a cam push rod, a yarn carrier, a hook connector, a hook, a connecting plate, a bottom plate, and a support rod. The braiding machine uses a newly designed asymmetric cam, and the asymmetric cam is fixed on the rotating shafts around in a certain phase sequence. The gear linkage between the rotating shaft and the transmission shaft allows the cam to rotate in a certain direction. The cam pushes the cam push rod through direct contact, and then the cam push rod directly contacts to push the yarn carrier to move in a directional and orderly manner, thereby realizing continuous automatic braiding of the braiding machine. By changing the cam arrangement and cam size, the preparation of molded bodies of fabrics with different three-dimensional braided structures is realized. The device has poor precision driven by the cam, and the yarn cannot be well limited during the braiding process, resulting in poor quality and low efficiency of the braided finished product.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a braiding machine using a pneumatic propulsion device to solve the technical problems existing in the prior art.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a braiding machine using a pneumatic propulsion device, comprising: a braiding platform, the braiding platform is rectangular as a whole, a plurality of limit units with the same structure are arranged inside the bottom plate of the braiding platform, and a plurality of groups of propulsion units are arranged on the edge of the bottom plate of the braiding platform; wherein, a plurality of the limit units are arranged along the horizontal and vertical linear arrays of the bottom plate, and a plurality of the propulsion units are arranged along the peripheral edge of the bottom plate; four internal fixed blocks are arranged in each of the limit units, a spacer block is arranged between adjacent internal fixed blocks, and a yarn carrier is arranged between adjacent spacer blocks; the tops of the internal fixed blocks, the spacer blocks and the yarn carrier are arranged flush; a pressure plate is arranged on the top of each of the internal fixed blocks, the gaps between the adjacent pressure plates form a first direction channel along the horizontal direction, the gaps between the adjacent pressure plates form a second direction channel along the longitudinal direction, and the adjacent pressure plates are used to limit the upward movement of the yarn carrier and the deviation of the yarn from the first direction channel or the second direction channel; a group of the propulsion units is arranged corresponding to each first direction channel and the second direction channel.

[0008] In an optional embodiment, the propulsion unit is a pneumatic propulsion device, which includes a pneumatic push rod running along a limiting sleeve, and a front baffle and a rear baffle are arranged inside the main cylinder of the pneumatic propulsion device, and the front baffle is adjusted to a plurality of fixed positions along the main cylinder; a front locator and a rear locator are also arranged outside the main cylinder of the pneumatic propulsion device.

[0009] In an optional embodiment, the four internal fixed blocks are a first fixed block, a second fixed block, a third fixed block and a fourth fixed block; wherein, the first fixed block is laterally arranged toward the second fixed block and the third fixed block is laterally arranged toward the fourth fixed block, and the first fixed block is vertically arranged toward the third fixed block and the second fixed block is vertically arranged toward the fourth fixed block.

[0010] In an optional embodiment, the limiting units are arranged in m groups along the transverse direction of the bottom plate, and the limiting units are arranged in n groups along the longitudinal direction of the bottom plate.

[0011] In an optional embodiment, m groups of the propulsion units are arranged along the transverse direction of the bottom plate, and n groups of the propulsion units are arranged along the longitudinal direction of the bottom plate.

[0012] In an optional embodiment, each of the pneumatic propulsion devices arranged laterally is limited on the base plate by a group of edge fixing blocks, one of the edge fixing blocks corresponds to the first fixing block in the lateral direction toward the second fixing block, and the other side fixing block corresponds to the third fixing block in the lateral direction toward the fourth fixing block.

[0013] In an optional embodiment, each of the vertically arranged pneumatic propulsion devices is limited on the base plate by a group of edge fixing blocks, one of the edge fixing blocks corresponds to the vertical direction of the first fixing block toward the third fixing block, and the other side fixing block corresponds to the vertical direction of the second fixing block toward the fourth fixing block.

[0014] In an optional embodiment, the edge fixing blocks fixed along the edge of the bottom plate are adjacent to the spacer blocks at the edge of the limiting unit; and each of the pneumatic propulsion devices is adjacent to the yarn carrier at the edge of the limiting unit.

[0015] In an optional embodiment, when each group of the propulsion units is in operation, the pneumatic push rod in one of the pneumatic propulsion devices extends, and the pneumatic push rod in another pneumatic propulsion device retracts, driving the yarn in the yarn carrier to weave along the first direction channel direction or the second direction channel direction.

[0016] In an optional embodiment, the pneumatic propulsion device is also equipped with an air compressor and an electromagnetic steering air valve; the weaving platform is also equipped with a controller and a control panel.

[0017] The beneficial effects of the present invention are:

[0018] (1) The braiding machine using the pneumatic propulsion device controls the forward position and the backward position of the pneumatic push rod through the front baffle and the rear baffle, and monitors the position of the pneumatic push rod through the front positioner and the rear positioner. It is particularly important to point out that the movement distance of the pneumatic push rod can be changed by adjusting the position of the front baffle of the pneumatic propulsion device, so as to achieve adjustment of different braiding processes and provide more flexibility.

[0019] (2) The pneumatic propulsion device of the braiding machine using the pneumatic propulsion device is limited by the edge fixing block, and the cylinder push rod is limited by the limiting sleeve, so the operation precision is high; at the same time, the adjacent pressing plates limit the yarn carrier and the yarn passing through the first direction channel and the second direction channel, and the internal fixing block limits the spacing block and the yarn carrier, so that the spacing block and the yarn carrier can move accurately along the internal positioning block in the direction of the first direction channel and the second direction channel, thereby improving the overall braiding precision and braiding efficiency. In addition, a linear slide rail can be set on the bottom plate along the first direction channel and the second direction channel, so that the yarn carrier and the linear slide rail can slide and engage with each other. While ensuring the smooth operation of the yarn carrier, the yarn carrier can be limited again to further improve the braiding precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic structural diagram of a braiding machine using a pneumatic propulsion device provided in one embodiment of the present invention.

[0022] Figure 2 1. Three views of an internal fixing block, a yarn carrier and a pressure plate provided in one embodiment of the present invention.

[0023] Figure 3 It is a schematic diagram of the structure of a pneumatic propulsion device provided in one embodiment of the present invention.

[0024] Figure 4 A control schematic diagram of a knitting machine with a pneumatic propulsion device provided in one embodiment of the present invention.

[0025] Wherein, the accompanying drawings are marked as follows:

[0026] 1-pneumatic propulsion device, 2-side fixing block, 3-spacer block, 4-inner fixing block, 41-first fixing block, 42-second fixing block, 43-third fixing block, 44-fourth fixing block;

[0027] 5-yarn carrier, 6-pressing plate, 7-pneumatic push rod, 8-limiting sleeve, 9-front positioner, 10-rear positioner, 11-front baffle, 12-rear baffle, 13-first direction channel, 14-second direction channel. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly located on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on the present technical solution. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0030] Please see attached Figure 1-4 The purpose of this embodiment is to provide a braiding machine using a pneumatic propulsion device, including: a braiding platform, the braiding platform is rectangular as a whole, a plurality of limit units with the same structure are arranged inside the bottom plate of the braiding platform, and a plurality of groups of propulsion units are arranged on the edge of the bottom plate of the braiding platform; wherein, the plurality of limit units are arranged along the horizontal and vertical linear arrays of the bottom plate, and the plurality of propulsion units are arranged along the peripheral side edge of the bottom plate.

[0031] Specifically, four internal fixed blocks are arranged in each limiting unit, a spacer block 3 is arranged between adjacent internal fixed blocks, and a yarn carrier 5 is arranged between adjacent spacer blocks 3; the tops of the internal fixed blocks, the spacer blocks 3 and the yarn carrier 5 are arranged flush; a pressing plate 6 is arranged on the top of each internal fixed block, the gaps between adjacent pressing plates 6 form a first direction channel 13 along the horizontal direction, and the gaps between adjacent pressing plates 6 form a second direction channel 14 along the longitudinal direction, the gaps allow the yarn carrier 5 to carry the yarn through, and the adjacent pressing plates 6 are used to limit the upward movement of the yarn carrier 5 and the yarn deviates from the first direction channel 13 or the second direction channel 14. A group of propulsion units are arranged corresponding to each first direction channel 13 and the second direction channel 14.

[0032] In an optional embodiment, a linear slide rail can be set on the bottom plate along the first direction channel 13 and the second direction channel 14, so that the yarn carrier 5, the spacer block 3 and the linear slide rail can be slidably engaged with each other. While ensuring the smooth operation of the yarn carrier 5, the yarn carrier 5 can be further limited, thereby further improving the weaving accuracy, thereby solving the problem of no limitation or inaccurate limitation of the yarn carrier in the prior art.

[0033] In this embodiment, there are m groups of limit units arranged along the horizontal direction of the bottom plate, and n groups of limit units arranged along the vertical direction of the bottom plate. There are m groups of propulsion units arranged along the horizontal direction of the bottom plate, and n groups of propulsion units arranged along the vertical direction of the bottom plate. It should be pointed out that the four internal fixed blocks are the first fixed block 41, the second fixed block 42, the third fixed block 43 and the fourth fixed block 44; wherein the first fixed block 41 is arranged horizontally toward the second fixed block 42, and the third fixed block 43 is arranged toward the fourth fixed block 44, and the first fixed block 41 is arranged vertically toward the third fixed block 43, and the second fixed block 42 is arranged toward the fourth fixed block 44.

[0034] Furthermore, the propulsion unit is a pneumatic propulsion device 1, which includes a pneumatic push rod 7 running along a limiting sleeve 8, the cross section of the head end of the pneumatic push rod 7 is square or circular, and the outer periphery is a limiting sleeve 8. When the pneumatic push rod 7 is in the retreat position, the head end edge of the pneumatic push rod 7 is just aligned with the edge of the weaving platform. A front baffle 11 and a rear baffle 12 are arranged inside the main cylinder of the pneumatic propulsion device 1, and a front positioner 9 and a rear positioner 10 are also arranged outside the main cylinder of the pneumatic propulsion device 1. The outer sides of the two positioners are wrapped with an electromagnetic shielding layer. The front positioner 9 is fixed at the lower end of the front baffle 11, and the position can be adjusted forward and backward; the rear positioner 10 is fixed at the lower end of the rear baffle 12, and the spacing between the front and rear baffles is an integer multiple of the sum of the widths of the spacing block 3 and the yarn carrier 5. The forward position and the backward position of the pneumatic push rod 7 are controlled by the front baffle 11 and the rear baffle 12, and the position of the pneumatic push rod 7 is monitored by the front positioner 9 and the rear positioner 10, and the position of the front baffle 11 is changed. The front baffle 11 is moved to multiple gears for fixing (the requirements of different weaving processes), which meets the adjustment of different weaving processes and provides more flexibility. The existing cylinder has a fixed stroke. If it is positioned in the middle of the stroke during pneumatic drive, it cannot be accurately reached, and weaving requires repetitive movement. Each stroke (for example, movement to the middle position) is also difficult to control, which has obvious defects. The method of adjusting the position of the baffle 11 in this embodiment effectively solves the defects of the prior art.

[0035] Each pneumatic propulsion device 1 arranged transversely is limited on the bottom plate by a group of edge fixing blocks 2, one of which corresponds to the horizontal direction of the first fixing block 41 toward the second fixing block 42, and the other side fixing block 2 corresponds to the horizontal direction of the third fixing block 43 toward the fourth fixing block 44. Each pneumatic propulsion device 1 arranged vertically is limited on the bottom plate by a group of edge fixing blocks 2, one of which corresponds to the vertical direction of the first fixing block 41 toward the third fixing block 43, and the other side fixing block 2 corresponds to the vertical direction of the second fixing block 42 toward the fourth fixing block 44. Moreover, the edge fixing blocks 2 fixed along the edge of the bottom plate are adjacent to the spacer blocks 3 at the edge of the limiting unit, and the heights of the edge fixing blocks 2, the spacer blocks 3, the internal fixing blocks 4, and the yarn carriers 5 are consistent. Each pneumatic propulsion device 1 is adjacent to the yarn carrier 5 at the edge of the limiting unit.

[0036] In addition, the pneumatic propulsion device 1 is also equipped with an air compressor and an electromagnetic steering valve; the weaving platform is also equipped with a controller and a control panel, and the electromagnetic steering valve is connected to the air compressor and controlled by the controller. The air intake channel of a pair of pneumatic propulsion devices 1 in each row or column is connected to the same electromagnetic steering valve, and the electromagnetic steering valve controls the air intake of the air intake channel at one end to realize the advancement of the pneumatic push rod 7, and the air intake channel at the other end is deflated to realize the retreat of the pneumatic push rod 7; the conversion of air intake and deflation is realized by the electromagnetic steering valve; during operation, the pneumatic propulsion devices 1 in the same row or column of the weaving platform are pushed one by one from the same end. Two positioners and electromagnetic steering valves are respectively connected to the controller, and the monitoring results of the positioners are fed back to the control panel through the controller; if the signal fed back to the control panel by the two positioners shows that the pneumatic push rod 7 has not reached the specified position, the row or column is pushed again by switching the corresponding electromagnetic steering valve. If it cannot be in place within 5 times, an alarm error is issued. The braiding machine realizes independent movement of each row and column of the braiding platform through the control panel, and has the characteristics of automatic operation; by changing the position of the front baffle of the pneumatic propeller, it can realize flexible changes of different braiding processes such as 1×1 and 2×2 to meet the production requirements of different products.

[0037] During operation, each group of propulsion units operates, the pneumatic push rod 7 in one pneumatic propulsion device 1 extends, and the pneumatic push rod 7 in another pneumatic propulsion device 1 retracts, driving the yarn in the yarn carrier 5 to weave along the first direction channel 13 or the second direction channel 14.

[0038] The pneumatic propulsion device 1 of the braiding machine using the pneumatic propulsion device is limited by the edge fixing block 2, and the cylinder push rod 7 is limited by the limiting sleeve 8, so the operation precision is high; at the same time, the adjacent pressing plates 6 limit the yarn passing through the first direction channel 13 and the second direction channel 14, and the internal fixing block limits the spacer block 3 and the yarn carrier 5, so that the spacer block 3 and the yarn carrier 5 can move accurately along the internal positioning block in the direction of the first direction channel 13 and the second direction channel 14, thereby improving the overall braiding precision and braiding efficiency.

[0039] Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A braiding machine using a pneumatic propulsion device, comprising: A weaving platform, wherein the weaving platform is rectangular in shape as a whole, a plurality of limiting units of the same structure are arranged inside the bottom plate of the weaving platform, and a plurality of groups of propulsion units are arranged at the edge of the bottom plate of the weaving platform; wherein the plurality of limiting units are arranged along the horizontal and vertical linear arrays of the bottom plate, and the plurality of propulsion units are arranged along the peripheral side edge of the bottom plate; The invention is characterized in that four internal fixing blocks are arranged in each of the limiting units, a spacer block (3) is arranged between adjacent internal fixing blocks, and a yarn carrier (5) is arranged between adjacent spacer blocks (3); the tops of the internal fixing blocks, the spacer blocks (3) and the yarn carrier (5) are arranged flush with each other; A pressing plate (6) is arranged on the top of each internal fixing block, the gaps between adjacent pressing plates (6) form a first direction channel (13) in the transverse direction, the gaps between adjacent pressing plates (6) form a second direction channel (14) in the longitudinal direction, and the adjacent pressing plates (6) are used to limit the upward movement of the yarn carrier (5) and the deviation of the yarn from the first direction channel (13) or the second direction channel (14); A group of the propulsion units is provided corresponding to each of the first direction channels (13) and the second direction channels (14); The propulsion unit is a pneumatic propulsion device (1), the pneumatic propulsion device (1) comprising a pneumatic push rod (7) running along a limiting sleeve (8), a front baffle (11) and a rear baffle (12) being arranged inside a main cylinder of the pneumatic propulsion device (1), the front baffle (11) being adjustable to a plurality of fixed positions along the main cylinder; a front positioner (9) and a rear positioner (10) are also arranged outside the main cylinder of the pneumatic propulsion device (1); The four internal fixing blocks are a first fixing block (41), a second fixing block (42), a third fixing block (43) and a fourth fixing block (44); wherein the first fixing block (41) is arranged transversely toward the second fixing block (42), and the third fixing block (43) is arranged toward the fourth fixing block (44); and the first fixing block (41) is arranged vertically toward the third fixing block (43), and the second fixing block (42) is arranged vertically toward the fourth fixing block (44).

2. The braiding machine using a pneumatic propulsion device as claimed in claim 1, characterized in that: The limiting units are arranged in m groups along the transverse direction of the bottom plate, and the limiting units are arranged in n groups along the longitudinal direction of the bottom plate.

3. The braiding machine using a pneumatic propulsion device as claimed in claim 2, characterized in that: M groups of the propulsion units are arranged along the transverse direction of the bottom plate, and n groups of the propulsion units are arranged along the longitudinal direction of the bottom plate.

4. The braiding machine using a pneumatic propulsion device as claimed in claim 1, characterized in that: Each of the pneumatic propulsion devices (1) disposed transversely is limited on the bottom plate by a group of side fixing blocks (2), wherein one of the side fixing blocks (2) corresponds to the side direction of the first fixing block (41) toward the second fixing block (42), and the other side fixing block (2) corresponds to the side direction of the third fixing block (43) toward the fourth fixing block (44).

5. The braiding machine using a pneumatic propulsion device as claimed in claim 2, characterized in that: Each of the vertically arranged pneumatic propulsion devices (1) is limited on the bottom plate by a group of edge fixing blocks (2), wherein one of the edge fixing blocks (2) corresponds to the vertical direction of the first fixing block (41) toward the third fixing block (43), and the other of the edge fixing blocks (2) corresponds to the vertical direction of the second fixing block (42) toward the fourth fixing block (44).

6. The braiding machine using a pneumatic propulsion device as claimed in claim 4, characterized in that: The edge fixing blocks (2) fixed along the edge of the bottom plate are adjacent to the spacer blocks (3) at the edge of the limiting unit; and each of the pneumatic propulsion devices (1) is adjacent to the yarn carrier (5) at the edge of the limiting unit.

7. The braiding machine using a pneumatic propulsion device as claimed in claim 3, characterized in that: When each group of the propulsion units is in operation, the pneumatic push rod (7) in one of the pneumatic propulsion devices (1) is extended, and the pneumatic push rod (7) in the other pneumatic propulsion device (1) is retracted, driving the yarn in the yarn carrier (5) to be woven along the first direction channel (13) or the second direction channel (14).

8. The braiding machine using a pneumatic propulsion device as claimed in claim 3, characterized in that: The pneumatic propulsion device (1) is also equipped with an air compressor and an electromagnetic steering air valve; the weaving platform is also equipped with a controller and a control panel.

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