A guide device with adjustable weft insertion speed

Abstract

The utility model relates to a weaving machine technical field discloses a kind of guiding device of weft insertion speed adjustable, including weft insertion nozzle, the left side surface of weft insertion nozzle is provided with the weft insertion spray hole that is penetrated to right side surface, and the upper surface of weft insertion nozzle is provided with the main waterway that is connected in weft insertion spray hole, the upper surface of weft insertion nozzle is located the outside of main waterway and is fixed with main water inlet connector;The utility model is by being provided with the filter assembly of support ring, filter plate, support groove, positioning mechanism by setting in main water inlet connector, by the cooperation of positioning plate and spring, so that operator only needs to press positioning plate inward by tool when maintaining, can make its lower end shrink and separate from filter plate, so as to take out it upward, after cleaning, it can be directly placed into filter plate downward again;Multiple auxiliary waterways that are connected with weft insertion spray hole are set in the downstream of main waterway, realize flexible, reliable and economic segmented adjustment to weft insertion speed, to meet the weaving requirement of different weft yarn material, linear density and fabric width.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, specifically a guide device with adjustable weft insertion speed. Background Technology

[0002] With technological advancements, shuttleless looms, such as air-jet looms, water-jet looms, rapier looms, and rapier looms, have gradually replaced shuttle looms. Among them, water-jet looms utilize high-pressure water jets as the weft insertion medium. The jetting water generates frictional traction on the weft yarn, carrying it into the shed. Due to its excellent water jet concentration and extremely high weft insertion speed, it is particularly suitable for the mass production and high-efficiency weaving of hydrophobic fibers, and it occupies a dominant position in the production of chemical fiber filament fabrics.

[0003] The existing Chinese utility model patent document CN219470337U describes a weft insertion device for high-elastic bubble check fabric. It filters the incoming airflow through a filter mechanism. However, because the airflow enters directly from bottom to top, when the airflow stops flowing in, the impurities filtered by the filter mechanism will fall from top to bottom. The long-term retention of impurities will directly affect the accuracy of weft insertion. It requires staff to clean the inside frequently and regularly, and blockages are very likely to occur.

[0004] Chinese patent discloses a weft insertion device for all-cotton fabric (authorization announcement number CN221254831U). This patented technology is equipped with a dust discharge port. When airflow is no longer injected into it, the dust discharge valve structure of the dust discharge port will open the dust discharge port and guide the debris from top to bottom into the dust discharge port, where it will remain. When airflow is injected into it, the dust discharge valve structure is affected by the airflow and seals the dust discharge port, preventing the debris from re-entering the dust collection pipe. This structure has a debris discharge function, which greatly reduces the labor intensity of workers, eliminates the need for frequent and regular cleaning, and reduces the occurrence of blockages.

[0005] However, it has certain drawbacks: its built-in filter adopts a non-removable integrated encapsulation design, which makes it impossible to separate the filter from the device; when lint, dust and other debris carried by the high-speed airflow accumulate and clog the filter over a long period of time, due to the lack of a detachable structure, maintenance personnel must stop the machine and disassemble the entire filter shell to access the filter, and may even need to destructively remove the seals; this process not only consumes a lot of time and increases labor costs, but also the frequent disassembly and assembly can easily damage the airtightness of the equipment. Utility Model Content

[0006] The purpose of this invention is to provide a guide device with adjustable weft insertion speed to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A guide device with adjustable weft insertion speed includes a weft insertion nozzle. The left side surface of the weft insertion nozzle has a weft insertion nozzle hole that extends to the right side surface, and the upper surface of the weft insertion nozzle has a main water channel that communicates with the weft insertion nozzle hole. A main water inlet connector is fixedly connected to the upper surface of the weft insertion nozzle outside the main water channel.

[0009] A support ring is fixedly connected to the inner side of the main water inlet connector, and a filter plate is movably connected to the upper surface of the support ring.

[0010] The main water inlet connector has two symmetrical support grooves on its inner side, and a positioning mechanism is provided inside the support grooves.

[0011] As a further improvement of this utility model, the diameter of the filter plate is the same as the inner diameter of the main water inlet connector.

[0012] As a further improvement of this utility model: the positioning mechanism includes two positioning rods, one in front and one behind, and a positioning plate is movably sleeved on the outside of the two positioning rods. A spring is fixed to one side of the positioning plate near the inside of the support groove.

[0013] As a further embodiment of this utility model: the end of the positioning rod away from the positioning plate is fixedly connected to the inner side surface of the support groove, the lower end of the positioning plate is movably attached to the upper surface of the filter plate, and one end of the spring is fixedly connected to the inner side surface of the support groove.

[0014] As a further embodiment of this utility model: the outer surface of the weft insertion nozzle is uniformly provided with a plurality of auxiliary water channels communicating with the weft insertion nozzle holes, and the outer surface of the weft insertion nozzle is fixedly connected to an auxiliary connector outside the auxiliary water channels. The auxiliary connector is internally threaded with a sealing column, and a sealing block is fixedly connected to one end of the sealing column outside the auxiliary connector.

[0015] As a further improvement of this utility model: the auxiliary waterway is located to the right of the main waterway, and the diameter of the sealing block is larger than the outer diameter of the auxiliary joint.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model features a filter assembly consisting of a support ring, filter plate, support groove, and positioning mechanism inside the main water inlet connector. Utilizing the inclined structure at the lower end of the positioning plate in conjunction with a spring, operators can easily remove the filter plate by pressing it inwards with a tool during maintenance. After cleaning, the filter plate can be directly inserted downwards, and its downward pressure forces the positioning plate to retract and move into place. Once the filter plate is in position, the positioning plate automatically resets and stays in place under the action of the spring. This achieves rapid disassembly and assembly of the filter plate, greatly simplifying the maintenance process and ensuring the continuous operating efficiency of the equipment.

[0018] 2. This utility model sets up multiple auxiliary waterways downstream of the main waterway, each connected to the weft insertion nozzle. Each auxiliary waterway is connected to an auxiliary joint with internal threads and a sealing post that is threaded into it. This allows operators to decide whether to connect the auxiliary water source before production by disassembling or installing the sealing post on a specific auxiliary joint according to process requirements. This allows for precise configuration of the intensity and distribution of the auxiliary acceleration water flow in the weft insertion channel, enabling flexible, reliable, and economical segmented adjustment of the weft insertion speed to meet the weaving requirements of different weft yarn materials, linear densities, and fabric widths. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a guide device with adjustable weft insertion speed;

[0020] Figure 2 This is a schematic diagram from the right side of a guide device with adjustable weft insertion speed.

[0021] Figure 3 A cross-sectional view of a guide device with adjustable weft insertion speed;

[0022] Figure 4 A schematic diagram from above of a guide device with adjustable weft insertion speed;

[0023] Figure 5 for Figure 3 Enlarged view of A in the middle;

[0024] Figure 6 for Figure 4 Enlarged view of B in the middle;

[0025] Figure 7 This is a schematic diagram of the positioning mechanism in a guide device with adjustable weft insertion speed.

[0026] In the diagram: 1. Weft insertion nozzle; 2. Weft insertion nozzle orifice; 3. Main water channel; 4. Main water inlet connector; 5. Support ring; 6. Filter plate; 7. Support groove; 8. Positioning mechanism; 9. Positioning rod; 10. Positioning plate; 11. Spring; 12. Auxiliary water channel; 13. Auxiliary connector; 14. Sealing column; 15. Sealing block. Detailed Implementation

[0027] Please see Figure 1 and Figure 3 In this embodiment of the utility model, a guide device with adjustable weft insertion speed includes a weft insertion nozzle 1; the material of the weft insertion nozzle 1 is hard alloy or engineering ceramic plastic.

[0028] The left side surface of the weft insertion nozzle 1 has a weft insertion nozzle 2 that extends through to the right side surface;

[0029] The upper surface of the weft insertion nozzle 1 is provided with a main water channel 3 that connects to the weft insertion nozzle 2; the main water channel 3 is an inclined channel that is preferably oriented at an angle of 30° to 60° with the weft insertion nozzle 2, which is used to assist the water flow to be sprayed into the weft insertion nozzle 2 at the best angle, forming a rotating traction force field with a forward and downward component, which propels the weft yarn forward.

[0030] The upper surface of the weft-guiding nozzle 1 is fixed to the main water inlet connector 4 on the outside of the main water channel 3; the outside of the main water inlet connector 4 can be fitted with a flexible hose, one end of which is connected to a high-pressure water source device.

[0031] exist Figure 3 and Figure 5 In the middle section: a support ring 5 is fixedly connected to the inner side of the main water inlet connector 4, and a filter plate 6 is movably connected to the upper surface of the support ring 5. The diameter of the filter plate 6 is the same as the inner diameter of the main water inlet connector 4. The filter plate 6 is preferably a sintered metal mesh or a stainless steel filter mesh, which is used to intercept solid particles and other impurities in the water.

[0032] exist Figure 3 , Figures 5-7 In the middle: two support grooves 7 are symmetrically opened on the inner side of the main water inlet connector 4; both support grooves 7 are rectangular blind grooves and are arranged opposite each other;

[0033] The support groove 7 is provided with a positioning mechanism 8, which includes two positioning rods 9 at the front and rear. The two positioning rods 9 are movably sleeved with a positioning plate 10. The end of the positioning rod 9 away from the positioning plate 10 is fixed to the inner side surface of the support groove 7. The surface of the positioning plate 10 has two smooth through holes, which are clearance fit with the positioning rods 9.

[0034] The lower end of the positioning plate 10 is movably attached to the upper surface of the filter plate 6. A spring 11 is fixed to the side surface of the positioning plate 10 near the inside of the support groove 7. One end of the spring 11 is fixed to the inside side surface of the support groove 7. The positioning rod 9 does not protrude from the inner wall of the main water inlet connector 4. The positioning plate 10 is used to limit the filter plate 6 and prevent it from swaying up and down in the main water inlet connector 4. The positioning plate 10 is an inclined plate, and its lower end is inclined towards the outside of the support groove 7. When the spring 11 is in the normal state, the upper end of the positioning plate 10 is located inside the support groove 7, and the lower end of the positioning plate 10 is located outside the support groove 7, that is, it invades the inner hole space of the main water inlet connector 4.

[0035] exist Figure 1 and Figure 3 In the middle: Multiple auxiliary water channels 12 are evenly opened on the outer surface of the weft insertion nozzle 1, which are connected to the weft insertion nozzle 2. The auxiliary water channels 12 are located to the right of the main water channel 3. The auxiliary water channels 12 are inclined channels that are preferably oriented at an angle of 30° to 60° with the weft insertion nozzle 2.

[0036] An auxiliary connector 13 is fixedly attached to the outer surface of the weft insertion nozzle 1 on the outside of the auxiliary water channel 12. The auxiliary connector 13 can be connected to the auxiliary water source equipment through a hose. The water pressure provided by the auxiliary water source equipment is not higher than that of the main water source equipment to avoid excessive auxiliary water pressure, which could easily impact, interfere with, or even interrupt the main water flow, causing turbulence and leading to weft insertion failure. The auxiliary water source equipment is controlled by an independent and controllable solenoid valve, and its spraying sequence is synchronized with and adjustable with the loom spindle signal.

[0037] The inner wall of the auxiliary connector 13 is provided with internal threads;

[0038] The auxiliary connector 13 has a sealing post 14 connected to its internal thread. The sealing post 14 can be removed by rotating it counterclockwise. The fewer auxiliary connectors 13 that are blocked, the greater the increase in weft insertion speed. The more auxiliary connectors 13 that are blocked, the smaller the increase in weft insertion speed.

[0039] A sealing block 15 is fixed to one end of the sealing column 14 located outside the auxiliary joint 13. The diameter of the sealing block 15 is larger than the outer diameter of the auxiliary joint 13. The sealing block 15 facilitates the operator to rotate the sealing column 14.

[0040] The working principle of this utility model is as follows: First, the weft yarn is pre-threaded into the weft insertion nozzle 2; before production, according to the required weft insertion speed, the sealing post 14 on the corresponding auxiliary connector 13 is turned counterclockwise and removed, and the auxiliary connector 13 is connected to the auxiliary water source equipment through a hose. The unconnected auxiliary connector 13 remains sealed by the sealing post 14; during weft insertion, the high-pressure water from the main water source enters through the main water inlet connector 4, is filtered by the filter plate 6, and is sprayed into the weft insertion nozzle 2 through the main water channel 3, forming the main jet that pulls the weft yarn. At the same time, the auxiliary water channel 12, which is activated, sprays out auxiliary water, which together pulls the weft yarn to fly, thus starting the process. The more auxiliary water channels 12 there are, the faster the weft insertion speed. When maintenance is required, use a tool to press the positioning plate 10 inward to compress the spring 11 and retract it into the support groove 7. Keep pressing so that the lower end of the positioning plate 10 is completely separated from the filter plate 6, and then the filter plate 6 can be taken out upward for cleaning. When reinstalling, press the filter plate 6 downward directly, so that its edge contacts the inclined lower end face of the positioning plate 10 and forces the positioning plate 10 to retract into the support groove 7. After the filter plate 6 is completely attached to the upper surface of the support ring 5, the positioning plate 10 is reset under the rebound action of the spring 11, and its lower end face reattaches to the upper surface of the filter plate 6 to complete the limiting.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A guide device with adjustable weft insertion speed, comprising a weft insertion nozzle (1), characterized in that, The left side surface of the weft-guiding nozzle (1) is provided with a weft-guiding nozzle (2) that extends through to the right side surface, and the upper surface of the weft-guiding nozzle (1) is provided with a main waterway (3) that connects to the weft-guiding nozzle (2). The upper surface of the weft-guiding nozzle (1) is fixedly connected to a main water inlet connector (4) on the outside of the main waterway (3). A support ring (5) is fixedly connected to the inner side of the main water inlet connector (4), and a filter plate (6) is movably connected to the upper surface of the support ring (5). The main water inlet connector (4) has two symmetrical support grooves (7) on its inner side, and a positioning mechanism (8) is provided inside the support grooves (7).

2. The guide device with adjustable weft insertion speed according to claim 1, characterized in that, The diameter of the filter plate (6) is the same as the inner diameter of the main water inlet connector (4).

3. The guide device with adjustable weft insertion speed according to claim 1, characterized in that, The positioning mechanism (8) includes two positioning rods (9) at the front and back. The two positioning rods (9) are movably sleeved with a positioning plate (10) on their exterior. A spring (11) is fixed to one side surface of the positioning plate (10) near the inside of the support groove (7).

4. The guide device with adjustable weft insertion speed according to claim 3, characterized in that, The end of the positioning rod (9) away from the positioning plate (10) is fixed to the inner side surface of the support groove (7), the lower end of the positioning plate (10) is movably attached to the upper surface of the filter plate (6), and one end of the spring (11) is fixed to the inner side surface of the support groove (7).

5. The guide device with adjustable weft insertion speed according to claim 1, characterized in that, The outer surface of the weft-introducing nozzle (1) is uniformly provided with a plurality of auxiliary water channels (12) connected to the weft-introducing nozzle (2), and an auxiliary connector (13) is fixedly connected to the outer surface of the weft-introducing nozzle (1) outside the auxiliary water channel (12). A sealing column (14) is threadedly connected to the inside of the auxiliary connector (13), and a sealing block (15) is fixedly connected to one end of the sealing column (14) outside the auxiliary connector (13).

6. The guide device with adjustable weft insertion speed according to claim 5, characterized in that, The auxiliary waterway (12) is located to the right of the main waterway (3), and the diameter of the sealing block (15) is larger than the outer diameter of the auxiliary connector (13).

Images