Weft selecting device for spinning

Abstract

The invention relates to a weft selecting device for spinning, and belongs to the technical field of spinning. Comprising two weft selecting shells which are connected with each other and are of a semicircular structure, a plurality of mounting grooves are formed in the inner walls of the weft selecting shells, weft lifting and moving structures are inserted into the mounting grooves, and weft pressure detecting structures are further arranged on the weft lifting and moving structures. The device has the beneficial effects that wefts are placed in the weft placing holes, when the colors of the yarns need to be changed, the wefts can be pressed downwards in the weft placing holes, the weft placing seats can be driven to be pressed on the pressure sensors during pressing, and after the pressure sensors detect a set pressure value, the wefts can be placed in the weft placing holes. When the weft is detected, the lifting air cylinder is started and drives the weft placing seat to descend, the pressure of the weft is reduced, the probability of yarn breakage is further reduced, the position of the weft can be accurately adjusted through the pressure sensor, the detection accuracy is improved, and the problems caused by adjustment through a spring in the prior art are solved.

Description

Technical Field

[0001] This invention relates to a weft selection device for textiles, belonging to the field of textile technology. Background Technology

[0002] Currently, in the textile industry, looms typically use 8-color or 12-color weft selection, with a maximum of 16-color weft selection. A 16-color weft selection system corresponds to 16 weft selection fingers. To enrich the patterns produced by looms and expand their application range, resulting in looms with diverse patterns suitable for high-end fabrics, improvements to the weft selection device are needed. One method is to increase the number of weft selection needles. However, increasing the number of needles results in significant movement and inertia of the color selection mechanism during weft changes. This drawback becomes more pronounced when adjacent shuttles are used alternately. Currently, product structures rely on electromagnetic induction to drive the weft yarn, operating by turning the power on and off. However, the electromagnetic coils are prone to damage during this process, reducing their lifespan, increasing production costs, and requiring replacement after damage, thus reducing work efficiency.

[0003] To address the aforementioned issues, corresponding solutions have emerged in the industry. For example, Chinese invention patent application CN110453346A, entitled "A Sixteen-Color Weft Selection Device," describes a weft selection needle comprising a needle head, a guide rod, an inertial impact rod, and a needle tail. These components are connected by a boss. The guide rod is hollow and contains a compression spring that applies force to the contact surface of the inertial impact rod, causing the spring to abut and engage with one end of the rod. The inner diameter of the guide rod is larger than the outer diameter of the inertial impact rod, and the length of the guide rod is greater than the length of the inertial impact rod. This invention overcomes the problem of large movement and inertia in the color selection mechanism during weft changing, thereby improving the loom's working efficiency and reducing production costs.

[0004] In the aforementioned patent, a compression spring is used to solve the problem of large movement and inertia in the color selection mechanism. However, the following problems arise during use: A compression spring is installed in the guide rod to provide a buffering effect. However, since the compression spring is inserted into the guide rod, one end of the spring is connected to the inertial impact rod, while the other end of the spring is difficult to fix to the guide rod. As a result, the spring moves around in the guide rod as the inertial impact rod moves, leading to a poor buffering effect.

[0005] Meanwhile, the spring's elasticity will weaken during long-term use, resulting in poor control of the device. In some cases, the spring may even get stuck, causing the device to lose its adjustment capability.

[0006] 3. Due to the relatively weak strength of the weft yarn, the current device uses springs for adjustment. However, springs cannot accurately detect the pressure on the weft yarn, which often leads to yarn breakage during use. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a multi-color weft selection device to solve the problems faced in the industry.

[0008] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a weft selection device for textiles, comprising two interconnected weft selection shells in a semi-circular structure, wherein a plurality of mounting grooves are provided on the inner wall of the weft selection shells, a weft lifting and moving structure is inserted into the mounting grooves, and a weft pressure detection structure is also provided on the weft lifting and moving structure, and side baffles are provided at the left and right ends of the weft selection shells.

[0009] Preferably, the weft lifting and moving structure includes a circular mounting base with an insertion boss on its arc-shaped surface. The insertion boss is inserted into the mounting groove. An inner mounting hole is provided at the center of the end of the mounting base. The end of the mounting base is also provided with a plurality of connecting through holes, which are evenly distributed on the side of the inner mounting hole.

[0010] Preferably, the side of the mounting base is also connected to a transition seat with a circular structure. The transition seat is provided with a plurality of transition threaded holes, and the transition threaded holes correspond one-to-one with the connecting through holes. The side of the transition seat is also provided with a lifting cylinder. The lifting cylinder and the transition seat are connected by screws. The cylinder shaft of the lifting cylinder passes through the side baffle and extends into the outside of the side baffle.

[0011] Preferably, the weft pressure detection structure includes a connecting bushing, which is sleeved on the cylinder shaft of the lifting cylinder. A pressure sensor is provided at the end of the connecting bushing, and a weft placement seat is provided on the pressure sensor.

[0012] Preferably, the weft placement seat includes a weft placement seat body, the upper part of which is a weft placement hole, and a side entry groove is provided on the side of the weft placement hole, the side entry groove extending from the outside of the weft placement seat body into the weft placement hole.

[0013] Preferably, the two sides of the side entry groove are provided with rounded corners.

[0014] Preferably, the weft-selective housing has multiple side-fixing threaded holes at both ends along its length.

[0015] Preferably, the side of the side baffle is provided with a plurality of side protrusions, the side protrusions are provided with side fixing through holes, and the center of the side baffle is provided with a wire outlet through hole.

[0016] Compared with the prior art, the advantages of this invention are: when in use, the weft yarn is placed in the weft yarn placement hole. When the yarn color needs to be changed, the weft yarn will be pressed down in the weft yarn placement hole. When it is pressed down, it will drive the weft yarn placement seat to press against the pressure sensor. After the pressure sensor detects the set pressure value, it will activate the lifting cylinder and drive the weft yarn placement seat down, thereby reducing the pressure on the weft yarn and thus reducing the probability of yarn breakage. In this patent, the pressure sensor can accurately adjust the position of the weft yarn, improving the accuracy of detection and solving the problems caused by the use of springs for adjustment in the prior art. Attached Figure Description

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

[0018] Figure 1 This is the front view of the device.

[0019] Figure 2 This is an isometric view of the device.

[0020] Figure 3 This is a schematic diagram of the internal structure of this device.

[0021] Figure 4 This is a schematic diagram of the installation of the weft selection shell and side baffle.

[0022] Figure 5 This is a schematic diagram of the structure of the weft-selective shell.

[0023] Figure 6 This is a schematic diagram of the latitude line rising and falling movement structure.

[0024] Figure 7 This is a structural diagram of the mounting base.

[0025] Figure 8 This is a schematic diagram of the installation of the transition seat, lifting cylinder, and weft pressure detection structure.

[0026] Figure 9 This is a schematic diagram of the weft pressure detection structure.

[0027] Figure 10 This is a schematic diagram of the structure of the weft placement seat.

[0028] Figure 11 This is a schematic diagram of the installation of this device.

[0029] In the diagram: 1. Weft selection housing; 101. Mounting groove; 102. Side fixing threaded hole; 2. Weft lifting and moving structure; 201. Mounting seat; 202. Insertion boss; 203. Mounting inner hole; 204. Connecting through hole; 3. Weft pressure detection structure; 301. Connecting bushing; 302. Pressure sensor; 4. Transition seat; 401. Transition threaded hole; 402. Lifting cylinder; 5. Weft placement seat; 501. Weft placement seat body; 502. Weft placement hole; 503. Side entry groove; 504. Rounded corner; 6. Side baffle; 601. Side boss; 602. Side fixing through hole; 603. Outlet through hole. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments: like Figures 1 to 11 The weft selection device for textiles shown includes two interconnected weft selection housings 1 in a semi-circular structure. The inner wall of the weft selection housing 1 is provided with a plurality of mounting grooves 101. This patent provides a plurality of mounting grooves 101 so as to adjust the front and rear positions of the weft lifting and moving structure 2 to accommodate the installation of lifting cylinders of different sizes.

[0031] like Figure 6 and Figure 7 As shown, a weft lifting and moving structure 2 is inserted into the mounting groove 101, and a weft pressure detection structure 3 is also provided on the weft lifting and moving structure 2. Side baffles 6 are provided at the left and right ends of the weft selection housing 1.

[0032] This patent provides a weft lifting and moving structure 2, which includes a circular mounting base 201. An insertion boss 202 is provided on the arc-shaped surface of the mounting base 201. The insertion boss 202 is inserted into the mounting groove 101, and the mounting base 201 can fix the object more stably by means of the insertion boss 202.

[0033] In this patent, an inner mounting hole 203 is provided at the center of the end of the mounting base 201. The inner mounting hole 203 facilitates the placement of connecting wires. A plurality of connecting through holes 204 are also provided at the end of the mounting base 201, and the connecting through holes 204 are evenly distributed on the side of the inner mounting hole 203.

[0034] like Figure 8 As shown, the side of the mounting base 201 is also connected to a transition seat 4 with a circular structure. The transition seat 4 is provided with a plurality of transition threaded holes 401. The transition threaded holes 401 correspond one-to-one with the connecting through holes 204. The mounting base 201 and the transition seat 4 are fixed together by screws.

[0035] Furthermore, in order to prevent the weft yarn from being compressed during the production process, a lifting cylinder 402 is also provided on the side of the transition seat 4. The lifting cylinder 402 and the transition seat 4 are connected by screws. The cylinder shaft of the lifting cylinder 402 passes through the side baffle 103 and extends into the outside of the side baffle 103.

[0036] like Figure 9 As shown, the weft pressure detection structure 3 includes a connecting bushing 301, which is sleeved on the cylinder shaft of the lifting cylinder 403. A pressure sensor 302 is provided at the end of the connecting bushing 301, and a weft placement seat 5 is provided on the pressure sensor 302.

[0037] like Figure 10 As shown, the weft placement seat 5 includes a weft placement seat body 501. The upper part of the weft placement seat body 501 is provided with a weft placement hole 502. The side of the weft placement hole 502 is provided with a side entry groove 503. The side entry groove 503 extends from the outside of the weft placement seat body 501 into the weft placement hole 502.

[0038] In this patent, rounded corners 504 are provided on both sides of the side entry groove 503, which facilitates the placement and removal of the weft yarn.

[0039] To facilitate connection, multiple side fixing threaded holes 102 are further provided at both ends of the weft selection housing 1 along its length.

[0040] like Figure 4 As shown, the side baffle 6 is provided with a plurality of side protrusions 601 on its side, and the side protrusions 601 are provided with side fixing through holes 602. The center of the side baffle 6 is provided with a wire outlet through hole 603. By providing the side baffle 6, the side baffle 6 and the weft selection housing 1 can be connected together to form a whole, thereby improving the stability of the device.

[0041] In use, select the appropriate lifting cylinder 402 according to actual needs, and connect the lifting cylinder 402 and the transition seat 4 together. In this patent, the transition seat 4 can be replaced according to different lifting cylinders 402. After the lifting cylinder 402 and the transition seat 4 are connected together, connect and fix the mounting seat 201 to the transition seat 4, so that the mounting seat 201, the transition seat 4 and the lifting cylinder 402 form a whole.

[0042] Place the mounting base 201 into the weft selection housing 1, so that the insertion boss 202 on the mounting base 201 is inserted into the mounting groove 101. The insertion boss 202 can effectively prevent the mounting base 201 from sliding in the weft selection housing 1. Pass the cylinder shaft of the lifting cylinder 402 through the side baffle 6 and extend it to the outside of the side baffle 6.

[0043] The connecting bushing 301 is fixed to the cylinder shaft of the lifting cylinder 402, the pressure sensor 302 is installed on the top of the connecting bushing 301, and the weft placement seat 5 is fixed to the pressure sensor 302, thus forming a complete weft selection device.

[0044] In use, the weft yarn is placed into the weft yarn placement hole. When the yarn color needs to be changed, the weft yarn will be pressed down in the weft yarn placement hole. When it is pressed down, it will cause the weft yarn placement seat to press against the pressure sensor. After the pressure sensor detects the set pressure value, it will activate the lifting cylinder and drive the weft yarn placement seat down, thereby reducing the pressure on the weft yarn and thus reducing the probability of yarn breakage. In this patent, the pressure sensor can accurately adjust the position of the weft yarn, improving the accuracy of detection and solving the problems caused by the use of springs for adjustment in the prior art.

[0045] It should be emphasized that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A weft selection device for textiles, characterized in that: It includes two interconnected weft selection shells (1) with a semi-circular structure. Multiple mounting grooves (101) are provided on the inner wall of the weft selection shell (1). A weft lifting and moving structure (2) is inserted into the mounting groove (101). A weft pressure detection structure (3) is also provided on the weft selection shell (2). Side baffles (6) are provided at the left and right ends of the weft selection shell (1).

2. The weft selection device for textiles according to claim 1, characterized in that: The latitude lifting and moving structure (2) includes a circular mounting base (201). An insertion boss (202) is provided on the arc-shaped surface of the mounting base (201). The insertion boss (202) is inserted into the mounting groove (101). An mounting inner hole (203) is provided at the center of the end of the mounting base (201). A plurality of connecting through holes (204) are also provided at the end of the mounting base (201). The connecting through holes (204) are evenly distributed on the side of the mounting inner hole (203).

3. The weft selection device for textiles according to claim 2, characterized in that: The mounting base (201) is also connected to a transition seat (4) with a circular structure on its side. The transition seat (4) is provided with a plurality of transition threaded holes (401). The transition threaded holes (401) and the connecting through holes (204) correspond one-to-one. The transition seat (4) is also provided with a lifting cylinder (402) on its side. The lifting cylinder (402) and the transition seat (4) are connected by screws. The cylinder shaft of the lifting cylinder (402) passes through the side baffle (103) and extends into the outside of the side baffle (103).

4. The weft selection device for textiles according to claim 3, characterized in that: The weft pressure detection structure (3) includes a connecting bushing (301), which is sleeved on the cylinder shaft of the lifting cylinder (403). A pressure sensor (302) is provided at the end of the connecting bushing (301), and a weft placement seat (5) is provided on the pressure sensor (302).

5. The weft selection device for textiles according to claim 4, characterized in that: The weft placement seat (5) includes a weft placement seat body (501), and a weft placement hole (502) is provided on the upper part of the weft placement seat body (501). A side entry groove (503) is provided on the side of the weft placement hole (502), and the side entry groove (503) extends from the outside of the weft placement seat body (501) into the weft placement hole (502).

6. The weft selection device for textiles according to claim 5, characterized in that: The two sides of the side entry groove (503) are respectively provided with rounded corners (504).

7. The weft selection device for textiles according to claim 1, characterized in that: The weft-selective housing (1) has multiple side-fixing threaded holes (102) at both ends along its length.

8. The weft selection device for textiles according to claim 7, characterized in that: The side of the side baffle (6) is provided with a plurality of side protrusions (601), the side protrusions (601) are provided with side fixing through holes (602), and the center of the side baffle (6) is provided with a wire outlet through hole (603).

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