A double-beam, double-drive weft-laying device

Abstract

This utility model belongs to the field of warp knitting machine technology, specifically relating to a double-beam, double-drive weft-laying device, including a base, longitudinal beams, a weft-laying carriage, a transverse drive mechanism, and a longitudinal drive mechanism. There are two longitudinal beams, fixed at intervals on the base. The longitudinal drive mechanism includes a longitudinal moving force component, a transmission shaft, two driving pulleys, two driven pulleys, and two synchronous belts. This utility model utilizes two longitudinal beams to support the weft-laying carriage, forming a double-beam structure, thereby improving the installation accuracy of the weft-laying carriage. Simultaneously, the transverse drive mechanism realizes the transverse movement of the carriage, and the longitudinal drive mechanism realizes the longitudinal movement of the carriage, achieving a self-drive mode for the weft-laying carriage. This reduces the moment of inertia, increases the weft-laying speed, and allows one longitudinal moving force component to drive the two synchronous belts synchronously, enabling the carriage to have dual-side drive during longitudinal movement, thus improving the movement accuracy of the weft-laying carriage and consequently improving the weft-laying accuracy.

Description

Technical Field

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

[0002] Traditional weft-laying devices generally include a crossbeam, a longitudinal beam that moves back and forth along the length of the crossbeam, and a weft-laying trolley mounted on the longitudinal beam that can move back and forth along the length of the longitudinal beam. This structure is equipped with a transverse drive mechanism for driving the longitudinal beam and a longitudinal drive mechanism for driving the weft-laying trolley to achieve the transverse and longitudinal movement of the weft-laying trolley. However, when the weft-laying trolley moves laterally, the longitudinal beam needs to move laterally synchronously. Correspondingly, the motor and reducer in the transverse drive mechanism also need to move laterally synchronously, resulting in excessive moment of inertia. Therefore, a self-driven weft-laying trolley has emerged, which can achieve transverse and longitudinal movement on its own. The longitudinal beam is directly fixed on the crossbeam and does not need to move. However, existing weft-laying devices with self-driven weft-laying carriages all use a single longitudinal beam, which is fixed on a crossbeam. The weft-laying carriage moves back and forth along the length of the single longitudinal beam, forming a cantilever structure with the longitudinal beam. This structure results in low installation strength of the weft-laying carriage, which affects the movement accuracy of the weft-laying carriage and thus the weft-laying accuracy. Utility Model Content

[0003] The technical problem to be solved by this utility model is that, in order to solve the problem that the existing weft laying devices with self-driven weft laying carriages all use a single longitudinal beam, which is fixed on a crossbeam. The weft laying carriage moves back and forth along the length of the single longitudinal beam, and the longitudinal beam and the weft laying carriage form a cantilever structure. This structure results in low installation strength of the weft laying carriage, which affects the movement accuracy of the weft laying carriage and thus affects the weft laying accuracy. The present invention provides a double-beam double-drive weft laying device.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a double-beam, double-drive weft-laying device, comprising: Base; There are two longitudinal beams, which are fixed to the base at intervals. A weft-laying trolley is movably mounted on the longitudinal beam; A transverse drive mechanism is used to drive the weft-laying trolley to reciprocate between the two longitudinal beams; The longitudinal movement drive mechanism is used to drive the weft-laying trolley to reciprocate along the length of the longitudinal beam. It includes a longitudinal movement force member, a transmission shaft connected to the output end of the longitudinal movement force member, two driving pulleys mounted on the transmission shaft, two driven pulleys corresponding to the two driving pulleys, and two synchronous belts wound around the driving pulleys and driven pulleys. The two synchronous belts correspond one-to-one with the two longitudinal beams, and each synchronous belt extends along the length of its corresponding longitudinal beam. The two ends of the weft-laying trolley are respectively connected to the two synchronous belts.

[0005] Furthermore, the weft-laying trolley includes a frame connected to the output end of the longitudinal movement drive mechanism, a yarn-separating plate installed in the frame and connected to the output end of the transverse movement drive mechanism, a yarn-pressing plate disposed in the frame, and a lifting drive mechanism for driving the yarn-pressing plate to rise and fall.

[0006] Furthermore, the lateral movement drive mechanism includes a lateral movement force member mounted on the frame and a lateral movement screw and nut assembly connected to the output end of the lateral movement force member, the output end of which is connected to the yarn separating plate.

[0007] Furthermore, the lifting drive mechanism includes a lifting power component mounted on the frame and a lifting screw and nut assembly connected to the output end of the lifting power component, the output end of which is connected to the yarn pressing plate.

[0008] Furthermore, there are two lifting drive mechanisms and two pressing plates, with each lifting drive mechanism corresponding to one pressing plate and each lifting drive mechanism driving the pressing plate to rise and fall.

[0009] Furthermore, each lifting drive mechanism has at least two lifting screw nut pairs, and each lifting drive mechanism also includes a drive wheel connected to the output end of the lifting power component, an intermediate wheel connected to one of the lifting screw nut pairs, a driven wheel connected to the other lifting screw nut pair, a main belt wound around the drive wheel and the intermediate wheel, and a secondary belt wound around the intermediate wheel and the driven wheel.

[0010] Furthermore, the frame includes a top plate and side plates fixed to both ends of the top plate along its transverse direction. The top plate has a transverse groove for the yarn separating plate to move laterally, and both ends of the top plate protrude to form connecting portions for connecting with a timing belt.

[0011] Furthermore, a slide rail is installed at the bottom of each longitudinal beam, and a slider is installed on the weft laying trolley to cooperate with the slide rail.

[0012] Furthermore, the base includes two spaced-apart crossbeams and a strut connecting the two crossbeams, with both ends of each longitudinal beam supported on the crossbeams by supports.

[0013] Furthermore, it also includes a needle block fixed to the support rod and a straight needle assembly slidably mounted on the crossbeam to cooperate with the needle block.

[0014] The beneficial effects of this utility model are as follows: This utility model uses two longitudinal beams to support the weft-laying trolley, forming a double-beam structure, thereby improving the installation accuracy of the weft-laying trolley. At the same time, the lateral movement of the trolley is realized by using a transverse drive mechanism, and the longitudinal movement of the trolley is realized by using a longitudinal drive mechanism, realizing the self-drive mode of the weft-laying trolley, reducing the moment of inertia, increasing the weft-laying speed, and one longitudinal moving force component can drive two synchronous belts to move synchronously, so that the trolley has dual-side drive during longitudinal movement, forming a dual-drive mode, thereby improving the movement accuracy of the weft-laying trolley, and thus improving the weft-laying accuracy.

[0015] 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

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a schematic diagram of the structure of this utility model after the longitudinal beams have been removed; Figure 4 yes Figure 3 A magnified view of part A in the middle; Figure 5 This is a three-dimensional schematic diagram of the weft-laying trolley in this utility model; Figure 6 This is the front view of the weft-laying trolley in this utility model; Figure 7 This is a top view of the weft-laying trolley in this utility model; Figure 8 This is a schematic diagram of the structure of this utility model after the frame has been removed; In the picture: 1. Base; 101. Crossbeam; 102. Support rod; 2. Longitudinal beams; 3. Weft-laying carriage; 301. Frame; 3011. Top plate; 3012. Side plate; 3013. Transverse transfer groove; 3014. Connecting part; 302. Yarn separating plate; 303. Yarn pressing plate; 304. Lifting drive mechanism; 3041. Lifting power component; 3042. Lifting screw and nut pair; 3043. Drive wheel; 3044. Intermediate wheel; 3045. Main and intermediate belts; 3046. Driven belt; 3047. Driven wheel; 4. Lateral movement drive mechanism; 401. Lateral movement force component; 402. Lateral movement screw and nut pair; 5. Longitudinal drive mechanism; 501. Longitudinal force component; 502. Drive shaft; 503. Drive pulley; 504. Driven pulley; 505. Synchronous belt; 506. Slide rail; 507. Slider; 6. Support; 7. Needle block; 8. Straight needle assembly. Detailed Implementation

[0018] 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.

[0019] like Figures 1-8 As shown, a double-beam, double-drive weft-laying device includes: Base 1; There are two longitudinal beams 2, which are fixed at intervals on the base 1. The weft-laying trolley 3 is movably mounted on the longitudinal beam 2; The transverse drive mechanism 4 is used to drive the weft-laying trolley 3 to reciprocate between the two longitudinal beams 2; The longitudinal movement drive mechanism 5 is used to drive the weft-laying trolley 3 to reciprocate along the length of the longitudinal beam 2. It includes a longitudinal movement force member 501, a transmission shaft 502 connected to the output end of the longitudinal movement force member 501, two driving pulleys 503 mounted on the transmission shaft 502, two driven pulleys 504 corresponding to the two driving pulleys 503, and two synchronous belts 505 wound around the driving pulleys 503 and the driven pulleys 504. The two synchronous belts 505 correspond one-to-one with the two longitudinal beams 2, and each synchronous belt 505 extends along the length of the longitudinal beam 2 corresponding to it. The two ends of the weft-laying trolley 3 are respectively connected to the two synchronous belts 505.

[0020] The longitudinal movement drive can be a motor. When the motor starts, it drives the transmission shaft 502 to rotate. The two drive pulleys 503 on the transmission shaft 502 rotate synchronously and drive the two synchronous belts 505 to move synchronously through the two driven pulleys 504, thereby driving the weft laying trolley 3 to move back and forth along the length of the longitudinal beam 2.

[0021] In this embodiment, two longitudinal beams 2 are used to support the weft-laying carriage 3, forming a double-beam structure, thereby improving the installation accuracy of the weft-laying carriage 3. At the same time, the lateral movement of the carriage is realized by the transverse drive mechanism 4, and the longitudinal movement of the carriage is realized by the longitudinal drive mechanism 5, realizing the self-drive mode of the weft-laying carriage 3, reducing the moment of inertia, increasing the weft-laying speed, and one longitudinal moving force component 501 can drive two synchronous belts 505 to move synchronously, so that the carriage has dual-side drive during longitudinal movement, forming a dual-drive mode, thereby improving the movement accuracy of the weft-laying carriage 3, and thus improving the weft-laying accuracy.

[0022] In some examples, the weft-laying trolley 3 includes a frame 301 connected to the output end of the longitudinal drive mechanism 5, a yarn-separating plate 302 installed in the frame 301 and connected to the output end of the transverse drive mechanism 4, a yarn-pressing plate 303 disposed in the frame 301, and a lifting drive mechanism 304 for driving the yarn-pressing plate 303 to rise and fall. The transverse extension length of the yarn-pressing plate 303 is greater than the transverse extension length of the yarn-separating plate 302 and covers the transverse movement stroke of the yarn-separating plate 302. The yarn separating plate 302 can reciprocate between the two longitudinal beams 2 and along the length of the longitudinal beams 2 under the drive of the transverse drive mechanism 4 and the longitudinal drive mechanism 5. The yarn separating plate 302 has multiple yarn separating holes. The pressing plate 303 can reciprocate and move up and down along the length of the longitudinal beam 2 under the drive of the longitudinal drive mechanism 5 and the lifting drive mechanism 304.

[0023] In some examples, the lateral movement drive mechanism 4 includes a lateral movement force member 401 mounted on the frame 301 and a lateral movement screw and nut assembly 402 connected to the output end of the lateral movement force member 401. The output end of the lateral movement screw and nut assembly 402 is connected to the yarn separating plate 302. The lateral movement force member 401 can be a motor. When the motor is started, the lateral movement screw rotates synchronously, and the nut seat drives the yarn separating plate 302 to reciprocate between the two longitudinal beams 2.

[0024] In some examples, the lifting drive mechanism 304 includes a lifting power component 3041 mounted on the frame 301 and a lifting screw nut assembly 3042 connected to the output end of the lifting power component 3041. The output end of the lifting screw nut assembly 3042 is connected to the yarn pressing plate 303. The lifting power component 3041 can be a motor. When the motor is started, the lifting screw rotates synchronously, and the nut seat drives the yarn pressing plate 303 to perform lifting and lowering movements.

[0025] In some examples, there are two lifting drive mechanisms 304 and two pressing plates 303. The two pressing plates 303 are symmetrically distributed on both sides of the yarn separating plate 302. The two lifting drive mechanisms 304 correspond one-to-one with the two pressing plates 303, and each lifting drive mechanism 304 drives its corresponding pressing plate 303 to rise and fall. The two pressing plates 303 can achieve synchronous or asynchronous lifting and falling.

[0026] In some examples, the number of lifting screw nut pairs 3042 in each lifting drive mechanism 304 is at least two. In this embodiment, there are two, which are respectively connected to both ends of the pressure plate 303. Each lifting drive mechanism 304 also includes a drive wheel 3043 connected to the output end of the lifting power component 3041, an intermediate wheel 3044 connected to one of the lifting screw nut pairs 3042, a driven wheel 3047 connected to the other lifting screw nut pair 3042, a main belt 3045 wound around the drive wheel 3043 and the intermediate wheel 3044, and a secondary belt 3046 wound around the intermediate wheel 3044 and the driven wheel 3047. The lifting power unit 3041 is activated, which drives the drive wheel 3043 to rotate. The drive wheel 3043 drives the intermediate wheel 3044 to rotate via the main belt 3045. The intermediate wheel 3044 drives one of the lifting screw nut pairs 3042 connected to it to rotate. At the same time, the intermediate wheel 3044 drives the other lifting screw nut pair 3042 to move via the intermediate belt 3046. The two lifting screw nut pairs 3042 move synchronously to drive the yarn pressing plate 303 to rise and fall, thereby preventing the yarn pressing plate 303 from tilting.

[0027] In some examples, the frame 301 includes a top plate 3011 and side plates 3012 fixed to both ends of the top plate 3011 along its transverse direction. The top plate 3011 has a transverse groove 3013 for the yarn separating plate 302 to move laterally, and both ends of the top plate 3011 have protruding connecting portions 3014 for connecting with the timing belt 505. The side plates 3012 are for mounting the transverse moving force member 401 and the longitudinal moving force member 501.

[0028] In some examples, a slide rail 506 is installed at the bottom of each longitudinal beam 2, and a slider 507 is installed on the top plate 3011 of the weft laying trolley 3 to cooperate with the slide rail 506. The slide rail 506 and the slider 507 cooperate to provide guidance for the movement of the weft laying trolley 3.

[0029] In some examples, the base 1 includes two spaced-apart crossbeams 101 and a strut 102 connecting the two crossbeams 101. There are several struts 102, which are distributed at intervals along the transverse direction. Both ends of each longitudinal beam 2 are supported on the crossbeam 101 by a support 6, and the longitudinal moving force member 501 is installed on the support 6.

[0030] In some examples, the assembly also includes a needle block 7 fixed to the support rod 102 and a straight needle assembly 8 slidably mounted on the crossbeam 101 to cooperate with the needle block 7. There are two needle blocks 7 and two straight needle assemblies 8, and they correspond one-to-one. Each needle block 7 extends along the length of the crossbeam 101. The straight needle assembly 8 includes a straight needle body, a first drive mechanism that drives the straight needle body to move closer to or away from its corresponding needle block 7, and a second drive mechanism that drives the straight needle body to reciprocate along the length of the crossbeam 101.

[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 double-beam, double-drive weft-laying device, characterized in that: include: Base (1); There are two longitudinal beams (2), and the two longitudinal beams (2) are fixed to the base (1) at intervals; The weft-laying trolley (3) is movably mounted on the longitudinal beam (2); A transverse drive mechanism (4) is used to drive the weft-laying trolley (3) to reciprocate between the two longitudinal beams (2); The longitudinal movement drive mechanism (5) is used to drive the weft laying trolley (3) to reciprocate along the length direction of the longitudinal beam (2). It includes a longitudinal movement force member (501), a transmission shaft (502) connected to the output end of the longitudinal movement force member (501), two active pulleys (503) mounted on the transmission shaft (502), two driven pulleys (504) corresponding to the two active pulleys (503), and two synchronous belts (505) wound around the active pulleys (503) and driven pulleys (504). The two synchronous belts (505) correspond one-to-one with the two longitudinal beams (2), and each synchronous belt (505) extends along the length direction of the longitudinal beam (2) corresponding to it. The two ends of the weft laying trolley (3) are respectively connected to the two synchronous belts (505).

2. The double-beam, double-drive weft-laying device according to claim 1, characterized in that: The weft-laying trolley (3) includes a frame (301) connected to the output end of the longitudinal drive mechanism (5), a yarn-separating plate (302) installed in the frame (301) and connected to the output end of the transverse drive mechanism (4), a yarn-pressing plate (303) disposed in the frame (301), and a lifting drive mechanism (304) for driving the yarn-pressing plate (303) to rise and fall.

3. The double-beam, double-drive weft-laying device according to claim 2, characterized in that: The lateral drive mechanism (4) includes a lateral force member (401) mounted on the frame (301) and a lateral screw nut pair (402) connected to the output end of the lateral force member (401). The output end of the lateral screw nut pair (402) is connected to the yarn separating plate (302).

4. The double-beam, double-drive weft-laying device according to claim 2, characterized in that: The lifting drive mechanism (304) includes a lifting power component (3041) mounted on the frame (301) and a lifting screw nut pair (3042) connected to the output end of the lifting power component (3041). The output end of the lifting screw nut pair (3042) is connected to the yarn pressing plate (303).

5. The double-beam, double-drive weft-laying device according to claim 4, characterized in that: There are two lifting drive mechanisms (304) and two pressing plates (303). The two lifting drive mechanisms (304) correspond one-to-one with the two pressing plates (303), and each lifting drive mechanism (304) drives the pressing plate (303) corresponding to it to rise and fall.

6. A double-beam, double-drive weft-laying device according to claim 5, characterized in that: Each lifting drive mechanism (304) has at least two lifting screw nut pairs (3042), and each lifting drive mechanism (304) also includes a drive wheel (3043) connected to the output end of the lifting power component (3041), an intermediate wheel (3044) connected to one of the lifting screw nut pairs (3042), a driven wheel (3047) connected to the other lifting screw nut pair (3042), a main belt (3045) wound around the drive wheel (3043) and the intermediate wheel (3044), and a secondary belt (3046) wound around the intermediate wheel (3044) and the driven wheel (3047).

7. A double-beam, double-drive weft-laying device according to claim 2, characterized in that: The frame (301) includes a top plate (3011) and side plates (3012) fixed to both ends of the top plate (3011) along its transverse direction. The top plate (3011) has a transverse groove (3013) for the yarn separating plate (302) to move laterally, and both ends of the top plate (3011) have protruding connecting portions (3014) for connecting with the timing belt (505).

8. The double-beam, double-drive weft-laying device according to claim 1, characterized in that: Each longitudinal beam (2) is equipped with a slide rail (506) at its bottom, and the weft laying trolley (3) is equipped with a slider (507) for cooperating with the slide rail (506).

9. A double-beam, double-drive weft-laying device according to claim 1, characterized in that: The base (1) includes two spaced-apart crossbeams (101) and a strut (102) connecting the two crossbeams (101). Both ends of each longitudinal beam (2) are supported on the crossbeams (101) by supports (6).

10. A double-beam, double-drive weft-laying device according to claim 9, characterized in that: It also includes a needle block (7) fixed on the support rod (102) and a straight needle assembly (8) slidably mounted on the crossbeam (101) to cooperate with the needle block (7).

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