A multi-axial warp knitting machine weft laying device

Abstract

This utility model belongs to the field of warp knitting machine technology, specifically relating to a weft-laying device for a multi-axial warp knitting machine. It includes a frame, secondary beams, a weft-laying carriage, needle blocks, and a rake needle assembly. Two secondary beams are fixed to the frame at intervals. The weft-laying carriage can reciprocate along the length of the secondary beams and between the two secondary beams. It includes a yarn-separating assembly for guiding the yarn through and a yarn-pressing assembly for pressing down the yarn. This utility model utilizes the two secondary beams fixed to the frame as supports for the lateral movement of the weft-laying carriage. The weft-laying carriage does not need to slide along the frame with the secondary beams, greatly reducing the weight of the moving parts, thereby reducing the moment of inertia and increasing the weft-laying speed. Simultaneously, the small-mass weft-laying carriage can be driven by a low-power motor, thus saving energy.

Description

Technical Field

[0001] This utility model belongs to the field of warp knitting machine technology, specifically relating to a weft laying device for a multi-axial warp knitting machine. Background Technology

[0002] In the prior art, weft laying devices typically include a base frame, several sliding crossbeams mounted on the base frame, and weft laying trolleys mounted on the crossbeams. The device is equipped with two drive systems: one for driving the crossbeams to reciprocate along the base frame (X-axis), and the other for driving the weft laying trolleys to reciprocate along the crossbeams (Y-axis).

[0003] When the weft-laying carriage needs to move along the X-axis, the entire moving beam needs to be driven to slide along the base frame. This means that in each movement along the X-axis, the moving beam itself, the weft-laying carriage mounted on it, and the linear drive mechanism (such as a motor and reducer) used to drive the weft-laying carriage to move in the Y-axis direction all need to move synchronously as a whole. In this working mode, the total mass of the moving parts is too large, resulting in excessive moment of inertia and excessively long acceleration / deceleration time. The effective high-speed uniform speed running range is compressed, which directly affects the weft-laying speed. Furthermore, driving the large-mass parts requires greater motor power, resulting in energy waste. Utility Model Content

[0004] The technical problem to be solved by this utility model is that, in the prior art, the moving crossbeam itself, the weft-laying trolley mounted on it, and the linear drive mechanism such as the motor and reducer used to drive the weft-laying trolley to move in the Y-axis direction all need to move synchronously as a whole. In this working mode, the total mass of the moving parts is too large, resulting in excessive moment of inertia and excessively long acceleration / deceleration time. The effective high-speed uniform running range is compressed, which directly affects the weft-laying speed. The present invention provides a weft-laying device for a multi-axial warp knitting machine.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a weft laying device for a multi-axial warp knitting machine, comprising: frame; There are two secondary beams, which are fixed to the frame at intervals. The weft-laying trolley, which can reciprocate along the length of the secondary beam and between the two secondary beams, includes a yarn-separating assembly for guiding the yarn through and a yarn-pressing assembly for pressing down the yarn. Needle blocks, which are fixed to the frame for yarn to insert; And a rake needle assembly, used to cooperate with the needle block to confine the yarn on the needle block.

[0006] Furthermore, the frame includes two spaced-apart main beams, a strut connecting the two main beams, and a column for supporting the bottom of the main beams, with each secondary beam supported on the two main beams at both ends.

[0007] Furthermore, the rake needle assembly includes a straight needle body, a first linear reciprocating drive mechanism for driving the straight needle body to move closer to or further away from the needle block, and a second linear reciprocating drive mechanism for driving the straight needle body to reciprocate along the length direction of the needle block.

[0008] Furthermore, the first linear reciprocating drive mechanism includes a transverse base, a first rotary power source mounted on the transverse base, a first driving wheel connected to the output end of the first rotary power source, a first driven wheel, a first synchronous belt wound around the first driving wheel and the first driven wheel, and a lead screw and nut pair connected to the first driven wheel. The output end of the lead screw and nut pair is connected to the straight needle body.

[0009] Furthermore, the second linear reciprocating drive mechanism includes a second rotary power source, a second driving wheel connected to the output end of the second rotary power source, a second driven wheel, and a second synchronous belt wound around the second driving wheel and the second driven wheel, the second synchronous belt being fixed to the transverse shift seat.

[0010] Furthermore, the straight needle body includes a rake needle and a rake needle seat for mounting the rake needle. A guide shaft is fixed on the transverse seat, and the rake needle seat has a guide hole for the guide shaft to pass through. A linear bearing is installed between the outer peripheral wall of the guide shaft and the wall of the guide hole.

[0011] Furthermore, it also includes a third linear reciprocating drive mechanism for driving the weft-laying trolley to reciprocate along the length of the sub-beam. The mechanism includes a third rotary power source fixed at one end of the sub-beam, a third driving wheel connected to the output end of the third rotary power source, a third driven wheel rotatably mounted at the other end of the sub-beam, and a third synchronous belt wound around the third driving wheel and the third driven wheel.

[0012] Furthermore, a slide rail is installed at the bottom of the sub-beam, and a slider that cooperates with the slide rail is installed on the weft-laying trolley.

[0013] Furthermore, the weft-laying trolley also includes a base installed between two secondary beams for mounting the yarn-splitting assembly and the yarn-pressing assembly, a fourth linear reciprocating drive mechanism for driving the yarn-splitting assembly to reciprocate between the two secondary beams, and a fifth linear reciprocating drive mechanism for driving the yarn-pressing assembly to rise and fall.

[0014] Furthermore, the yarn separating assembly includes at least one yarn separating plate, and the yarn pressing assembly includes two yarn pressing plates, the length of which covers the travel of the yarn separating plate.

[0015] The beneficial effects of this utility model are: This utility model uses two secondary beams fixed on the frame as supports for the weft laying carriage to move laterally. The weft laying carriage does not need to slide on the frame with the secondary beams, which greatly reduces the weight of the moving parts, thereby reducing the moment of inertia and increasing the weft laying speed. At the same time, the small-mass weft laying carriage can be driven by a small-power motor, thereby saving energy.

[0016] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the structure of this utility model after removing one of the secondary beams; Figure 4 This is a three-dimensional schematic diagram of the rake needle assembly in this utility model; Figure 5 This is a side view of the rake needle assembly in this utility model; Figure 6 This is a three-dimensional schematic diagram of the weft-laying trolley from a first-person perspective in this utility model; Figure 7 This is a three-dimensional schematic diagram of the weft-laying trolley from a second perspective in this utility model; In the picture: 1. Frame; 101. Main beam; 102. Support rod; 103. Column; 2. Secondary beam; 3. Weft-laying trolley; 301. Yarn separating assembly; 302. Yarn pressing assembly; 303. Base; 304. Fourth linear reciprocating drive mechanism; 3041. Fourth rotary power source; 3042. Lateral screw and nut pair; 305. Fifth linear reciprocating drive mechanism; 3051. Fifth rotary power source; 3052. Longitudinal screw and nut pair; 3053. Driving pulley; 3054. Intermediate pulley; 3055. Driven pulley; 3056. Main and intermediate belts; 3057. Intermediate and driven belts; 4. Needle block; 5. Rake needle assembly; 501. Rake needle holder; 502. First linear reciprocating drive mechanism; 5021. Transverse shifter; 5022. First rotary power source; 5023. First driving wheel; 5024. First driven wheel; 5025. First synchronous belt; 5026. Lead screw and nut pair; 5027. Guide shaft; 5028. Linear bearing; 503. Second linear reciprocating drive mechanism; 5031. Second rotary power source; 5032. Second driving wheel; 5033. Second driven wheel; 504. Base plate; 6. Third linear reciprocating drive mechanism; 601. Third rotary power source; 602. Third driving wheel; 603. Third driven wheel; 604. Third synchronous belt; 7. Slide rail; 8. Slider; Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components, orientations, and references (e.g., up, down, left, right, etc.) relevant to the present invention and are intended only to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0020] like Figures 1-7 As shown, a weft-laying device for a multi-axial warp knitting machine includes: Rack 1; There are two secondary beams 2, which are fixed at intervals on the frame 1. The weft-laying trolley 3, which can reciprocate along the length of the secondary beam 2 and reciprocate between the two secondary beams 2, includes a yarn-separating assembly 301 for guiding the yarn through and a yarn-pressing assembly 302 for pressing down the yarn. Needle block 4, which is fixed on the frame 1 for yarn to insert, has two sets and is located at both ends of the secondary beam 2 along its length. And a rake needle assembly 5, which is used to cooperate with the needle block 4 to confine the yarn on the needle block 4. The rake needle assembly 5 also has two sets, which are located at both ends of the secondary beam 2 along its length.

[0021] In this embodiment, two secondary beams 2 fixed on the frame 1 are used as supports for the weft laying carriage 3 to move laterally. The weft laying carriage 3 does not need to slide on the frame 1 with the secondary beams 2, which greatly reduces the weight of the moving parts, thereby reducing the moment of inertia and increasing the weft laying speed. At the same time, the low-mass weft laying carriage 3 can use a low-power motor, thereby saving energy consumption.

[0022] In some examples, the frame 1 includes two spaced main beams 101, a strut 102 connecting the two main beams 101, and a column 103 for supporting the main beams 101. There are multiple struts 102 and columns 103, which are spaced apart along the length of the main beams 101. The struts 102 and columns 103 are staggered to avoid interference. The two ends of each guide beam are respectively mounted on the two main beams 101. The needle block 4 is fixed on the strut 102 and extends along the length of the main beams 101.

[0023] In some examples, the rake needle assembly 5 includes a straight needle body, a first linear reciprocating drive mechanism 502 for driving the straight needle body closer to or away from the needle block 4, and a second linear reciprocating drive mechanism 503 for driving the straight needle body to reciprocate along the length direction of the needle block 4.

[0024] In some examples, the first linear reciprocating drive mechanism 502 includes a transverse base 5021, a first rotary power source 5022 mounted on the transverse base 5021, a first driving wheel 5023 connected to the output end of the first rotary power source 5022, a first driven wheel 5024, a first synchronous belt 5025 wound around the first driving wheel 5023 and the first driven wheel 5024, and a screw nut pair 5026 connected to the first driven wheel 5024. The output end of the screw nut pair 5026 is connected to the straight needle body. The first rotary power source 5022 can be a motor. The transverse base 5021 is mounted on the main beam 101 through a base plate 504. When the first rotary power source 5022 is started, the first driving wheel 5023 rotates, which drives the first driven wheel 5024 to rotate through the first synchronous belt 5025. The screw nut pair 5026 is started synchronously, driving the straight needle body to perform linear reciprocating motion to move closer to or away from the needle block 4.

[0025] In some examples, the second linear reciprocating drive mechanism 503 includes a second rotary power source 5031, a second driving wheel 5032 connected to the output end of the second rotary power source 5031, a second driven wheel 5033, and a second synchronous belt wound around the second driving wheel 5032 and the second driven wheel 5033. The second synchronous belt is fixed to the transverse shift seat 5021. The second rotary power source 5031 can be a motor. When the second rotary power source 5031 is started, the second driving wheel 5032 rotates, driving the second synchronous belt and the second driven wheel 5033 to rotate synchronously, driving the transverse shift seat 5021 and the straight needle body on it to perform linear reciprocating motion along the length direction of the needle block 4. Furthermore, a guide rail is fixed on the base plate 504, and a sliding block that cooperates with the guide rail is installed on the transverse sliding seat 5021. The cooperation between the guide rail and the sliding block can provide guidance for the movement of the transverse sliding seat 5021.

[0026] In some examples, the straight needle body includes a rake needle and a rake needle seat 501 for mounting the rake needle. A guide shaft 5027 is fixed on the transverse seat 5021. The rake needle seat 501 has a guide hole for the guide shaft 5027 to pass through. A linear bearing 5028 is installed between the outer peripheral wall of the guide shaft 5027 and the hole wall of the guide hole. The number of guide shafts 5027 can be, but is not limited to, one or two. In this embodiment, there are four guide shafts 5027, which are arranged in a rectangular shape. A limiting plate for limiting the stroke of the rake needle seat 501 is fixed at the end of the guide shaft 5027 away from the first rotating power source 5022.

[0027] In some examples, a third linear reciprocating drive mechanism 6 is also included to drive the weft-laying trolley 3 to reciprocate along the length of the sub-beam 2. The mechanism includes a third rotary drive source fixed to one end of the sub-beam 2, a third drive wheel 602 connected to the output end of the third rotary drive source, a third driven wheel 603 rotatably mounted on the other end of the sub-beam 2, and a third synchronous belt 604 wound around the third drive wheel 602 and the third driven wheel 603. The third rotary drive source 601 can be a motor. When the third rotary drive source 601 is started, the third drive wheel 602 rotates, driving the third synchronous belt 604 and the third driven wheel 603 to rotate synchronously, thereby driving the weft-laying trolley 3 to reciprocate along the length of the sub-beam 2.

[0028] In some examples, a slide rail 7 is installed at the bottom of the sub-beam 2, and a slider 8 that cooperates with the slide rail 7 is installed on the weft laying trolley 3. The cooperation between the slide rail 7 and the slider 8 can provide guidance for the movement of the weft laying trolley 3.

[0029] In some examples, the weft-laying trolley 3 also includes a base 303 fixed between two secondary beams 2 for mounting the yarn-separating assembly 301 and the yarn-pressing assembly 302, a fourth linear reciprocating drive mechanism 304 for driving the yarn-separating assembly 301 to reciprocate between the two secondary beams 2, and a fifth linear reciprocating drive mechanism 305 for driving the yarn-pressing assembly 302 to rise and fall. The base 303 can drive the yarn-separating assembly 301 and the yarn-pressing assembly 302 inside it to reciprocate in the opposite direction along the length of the secondary beams 2. The fourth linear reciprocating drive mechanism 304 includes a fourth rotary power source 3041 and a transverse lead screw nut pair 3042 connected to the output end of the fourth rotary power source 3041. The output end of the transverse lead screw nut pair 3042 is connected to the yarn splitting assembly 301 to drive the yarn splitting assembly 301 to reciprocate along the length direction of the main beam 101. The fourth rotary power source 3041 can be a motor. The fifth linear reciprocating drive mechanism 305 includes a fifth rotary power source 3051 and a longitudinal lead screw nut pair 3052 connected to the output end of the fifth rotary power source 3051. The output end of the longitudinal lead screw nut pair 3052 is connected to the yarn pressing plate. The longitudinal rotary power component can be a servo motor. Preferably, each fifth linear reciprocating drive mechanism 305 has at least two longitudinal lead screw nut pairs 3052, and each fifth linear reciprocating drive mechanism 305 also includes a driving pulley 3053 connected to the output end of the fifth rotary power source 3051, an intermediate pulley 3054 connected to one of the longitudinal lead screw nut pairs 3052, a driven pulley 3055 connected to the other longitudinal lead screw nut pair 3052, a main and intermediate belt 3056 wound around the driving pulley 3053 and the intermediate pulley 3054, and a middle and driven belt 3057 wound around the intermediate pulley and the driven pulley. The two longitudinal lead screw nut pairs 3052 in each fifth linear reciprocating drive mechanism 305 are located at both ends of the same pressure plate, which can prevent the pressure plate from tilting when it is raised and lowered.

[0030] In some examples, the yarn separating assembly 301 includes at least one yarn separating plate, and the yarn pressing assembly 302 includes two yarn pressing plates. The yarn separating plate can move laterally, while the yarn pressing plate can only move longitudinally. Therefore, in order to press the yarn towards the needle block 4 within the lateral movement stroke of the yarn separating plate, the length of the yarn pressing plate covers the movement stroke of the yarn separating plate.

[0031] The above description, based on the preferred embodiments of this utility model, provides inspiration. Those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification but must be determined according to the claims.

Claims

1. A weft laying device for a multi-axial warp knitting machine, characterized in that: include: Rack (1); There are two secondary beams (2), and the two secondary beams (2) are fixed to the frame (1) at intervals; The weft-laying trolley (3) can reciprocate along the length of the sub-beam (2) and between the two sub-beams (2), including a yarn-separating assembly (301) for guiding the yarn through and a yarn-pressing assembly (302) for pressing down the yarn. Needle block (4), which is fixed on the frame (1) for the yarn to be inserted; and a rake needle assembly (5) for use with a needle block (4) to confine the yarn on the needle block (4).

2. A multi-axial warp knitting machine laying device according to claim 1, characterized in that: The frame (1) includes two main beams (101) spaced apart, a strut (102) connecting the two main beams (101) and a column (103) for supporting the main beams (101). The two ends of each secondary beam (2) are respectively mounted on the two main beams (101).

3. A multi-axial warp knitting machine laying device according to claim 1, characterized in that: The rake needle assembly (5) includes a straight needle body, a first linear reciprocating drive mechanism (502) for driving the straight needle body to move closer to or further away from the needle block (4), and a second linear reciprocating drive mechanism (503) for driving the straight needle body to reciprocate along the length direction of the needle block (4).

4. A multi-axial warp knitting machine laying device according to claim 3, characterized in that: The first linear reciprocating drive mechanism (502) includes a transverse base (5021), a first rotary power source (5022) mounted on the transverse base (5021), a first driving wheel (5023) connected to the output end of the first rotary power source (5022), a first driven wheel (5024), a first synchronous belt (5025) wound around the first driving wheel (5023) and the first driven wheel (5024), and a lead screw and nut pair (5026) connected to the first driven wheel (5024). The output end of the lead screw and nut pair (5026) is connected to the straight needle body.

5. A multi-axial warp knitting machine laying device according to claim 4, characterized in that: The second linear reciprocating drive mechanism (503) includes a second rotary power source (5031), a second driving wheel (5032) connected to the output end of the second rotary power source (5031), a second driven wheel (5033), and a second synchronous belt wound around the second driving wheel (5032) and the second driven wheel (5033). The second synchronous belt is fixed to the transverse shift seat (5021).

6. A multi-axial warp knitting machine laying device according to claim 4, characterized in that: The straight needle body includes a rake needle and a rake needle seat (501) for mounting the rake needle. A guide shaft (5027) is fixed on the transverse seat (5021). The rake needle seat (501) has a guide hole for the guide shaft (5027) to pass through. A linear bearing (5028) is installed between the outer peripheral wall of the guide shaft (5027) and the hole wall of the guide hole.

7. A multi-axial warp knitting machine laying device according to claim 1, characterized in that It also includes a third linear reciprocating drive mechanism (6) for driving the weft-laying trolley (3) to reciprocate along the length of the sub-beam (2), which includes a third rotary power source (601) installed at one end of the sub-beam (2), a third driving wheel (602) connected to the output end of the third rotary power source (601), a third driven wheel (603) rotatably installed at the other end of the sub-beam (2), and a third synchronous belt (604) wound around the third driving wheel (602) and the third driven wheel (603).

8. A multi-axial warp knitting machine laying device according to claim 7, characterized in that: The bottom of the sub-beam (2) is equipped with a slide rail (7), and the weft laying trolley (3) is equipped with a slider (8) that cooperates with the slide rail (7).

9. A multi-axial warp knitting machine laying device according to claim 1, characterized in that: The weft-laying trolley (3) also includes a base (303) disposed between two secondary beams (2) for mounting the yarn splitting assembly (301) and the yarn pressing assembly (302), a fourth linear reciprocating drive mechanism (304) for driving the yarn splitting assembly (301) to reciprocate between the two secondary beams (2), and a fifth linear reciprocating drive mechanism (305) for driving the yarn pressing assembly (302) to rise and fall.

10. A multi-axial warp knitting machine laying device according to claim 9, characterized in that: The yarn separating assembly (301) includes at least one yarn separating plate, and the yarn pressing assembly (302) includes two yarn pressing plates, the length of which covers the travel of the yarn separating plate.

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