Electronic water pump on water-jet loom

Abstract

The utility model discloses an electronic water pump on a water-jet loom, which comprises a servo motor (1), a gear reducer and a water pump body (9), the gear reducer is connected with an eccentric cam (4), the eccentric cam (4) is connected with a plunger connecting rod (7) through a connecting rod (5), the plunger connecting rod (7) is connected with a plunger (8) connected with the water pump body (9), and the servo motor (1) works to drive the plunger (8) to reciprocate; the electronic water pump is simple in structure and convenient to install and adjust, the water spraying speed, the water amount and the water pressure can be adjusted in real time by controlling the plunger to reciprocate left and right, the requirement for water pressure and water amount for spraying different yarn fabrics can be met, the working efficiency of weft insertion is improved, and the diversity and stability of woven weft yarn are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water jet looms, in particular to an electronic water pump on a water jet loom. Background Art

[0002] The water jet loom is a new type of loom that uses water jets to complete weft insertion. It uses the water jet from the nozzle to guide the weft from one end of the shed to the other. The weft insertion mechanism is an important part of the water jet loom, and the water pump is an important power device in the weft insertion mechanism. The water pump used in the traditional water jet loom needs to be equipped with different springs and drive cams according to the different weft yarns of the woven fabric. The amount of water for each weft insertion is adjusted by adjusting the "water amount adjustment bolt". When changing the yarn type, the matching spring, plunger and cam need to be replaced at the same time. The operation is inconvenient and the work efficiency is low. In addition, the water spray speed, water volume and water pressure cannot be controlled in real time according to the actual working conditions.

[0003] The existing improved technology Chinese invention patent, whose application publication number is CN104846513A, is a water jet loom using an electronic weft insertion water pump. The water jet servo motor drives the eccentric wheel to rotate through the gear reducer, and then drives the second swing rod to swing back and forth through the connecting rod. The second swing rod drives the first swing rod to swing back and forth, and the plunger guide rod is connected by the connecting rod, thereby driving the plunger to move linearly left and right, achieving the purpose of not having to replace the spring, plunger and cam; but its structure is complicated, and it is inconvenient to install and adjust. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an electronic water pump for a water jet loom. The electronic water pump has a simple structure and is easy to install and adjust. By controlling the left and right reciprocating motion of the plunger, it can realize real-time adjustment of the water spraying speed, water volume, and water pressure. It can meet the requirements of multiple sprays of water pressure and water volume of different yarn fabrics, improve the work efficiency of weft insertion, and also improve the diversity and stability of textile weft yarns.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An electronic water pump on a water jet loom comprises a servo motor, a gear reduction box and a water pump body. The gear reduction box is connected to an eccentric cam, the eccentric cam is connected to a plunger connecting rod through a connecting rod, and the plunger connecting rod is connected to a plunger connected to the water pump body, and the plunger is driven to reciprocate when the servo motor is working.

[0007] Preferably, the gear reduction box includes a small gear connected to the output shaft of the servo motor and a large gear meshing with the small gear, and the large gear is connected to the eccentric cam.

[0008] Preferably, a shaft sleeve is provided outside the eccentric cam, and the shaft sleeve is connected to the connecting rod.

[0009] Preferably, the connecting rod comprises a rod body connected to the shaft sleeve and a U-shaped connecting portion connected to the rod body, and the plunger connecting rod is placed inside the U-shaped connecting portion and connected to the plunger connecting rod through a rotating shaft.

[0010] Preferably, the plunger connecting rod is sleeved with a linear bearing and can slide relative to the linear bearing to limit the moving direction of the plunger connecting rod and prevent the plunger from being damaged.

[0011] Preferably, the water pump body contains a one-way valve, which enables water to enter and spray out in a single direction through the reciprocating motion of the plunger and controls the amount of water by controlling the size of the cam offset.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. This electronic water pump can realize real-time adjustment of water spraying speed, water volume and water pressure by controlling the left and right reciprocating motion of the plunger, and can meet the requirements of water pressure and water volume of multiple sprays of different yarn fabrics, thus improving the diversity and stability of textile weft yarns;

[0014] 2. This electronic water pump does not need to replace the spring, plunger and cam, which improves the efficiency of weft insertion;

[0015] 3. This electronic water pump has a simple structure and is easy to install and adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the electronic water pump on the water jet loom.

[0017] Figure 2 This is the front view of the electronic water pump on this water jet loom.

[0018] Figure 3 This is a structural schematic diagram of the eccentric cam, connecting rod and plunger connecting rod in the electronic water pump on the water jet loom.

[0019] In the attached figure: 1-servo motor, 2-small gear, 3-large gear, 4-eccentric cam, 41-sleeve, 5-connecting rod, 51-rod body, 52-U-shaped connecting part, 6-linear bearing, 7-plunger connecting rod, 8-plunger, 9-water pump body. DETAILED DESCRIPTION

[0020] Embodiment 1: A preferred embodiment of the utility model provides an electronic water pump for a water jet loom, comprising a servo motor 1, a gear reduction box and a water pump body 9, wherein the gear reduction box is connected to an eccentric cam 4, the eccentric cam 4 is connected to a plunger connecting rod 7 through a connecting rod 5, and the plunger connecting rod 7 is connected to a plunger 8 connected to the water pump body 9, and the plunger 8 is driven to reciprocate under the operation of the servo motor 1. The servo motor is used to adjust the water volume and water pressure in real time to meet the water volume and water pressure requirements of different fabric weft yarns during operation, without the need to replace springs, plungers and cams, thereby improving the efficiency of weft insertion.

[0021] The gear reduction box includes a small gear 2 connected to the output shaft of the servo motor 1 and a large gear 3 meshing with the small gear 2 , and the large gear 3 is connected to the eccentric cam 4 ; the eccentric cam 4 is provided with a shaft sleeve 41 outside, and the shaft sleeve 41 is connected to the connecting rod 5 .

[0022] The water pump body 9 contains a one-way valve, which enables water to enter and spray out in one direction through the reciprocating motion of the plunger 8 and controls the amount of water by controlling the size of the cam offset.

[0023] Embodiment 2: A preferred embodiment of the utility model provides an electronic water pump for a water jet loom, which differs from the above-mentioned embodiment only in that: the connecting rod 5 includes a rod body 51 connected to the shaft sleeve 41 and a U-shaped connecting part 52 connected to the rod body 51, and the plunger connecting rod 7 is placed inside the U-shaped connecting part 52 and connected to the plunger connecting rod 7 through a rotating shaft.

[0024] Embodiment 3: A preferred embodiment of the utility model provides an electronic water pump for a water jet loom, which differs from the above embodiments only in that a linear bearing 6 is sleeved on the plunger connecting rod 7 and can slide relative to the linear bearing 6 to limit the moving direction of the plunger connecting rod 7 and prevent the plunger 8 from being damaged.

Claims

1. An electronic water pump for a water jet loom, comprising a servo motor (1), a gear reduction box and a water pump body (9), characterized in that: The gear reduction box is connected to the eccentric cam (4), the eccentric cam (4) is connected to the plunger connecting rod (7) through the connecting rod (5), and the plunger connecting rod (7) is connected to the plunger (8) connected to the pump body (9), and the plunger (8) is driven to reciprocate when the servo motor (1) is working; The gear reduction box comprises a small gear (2) connected to the output shaft of the servo motor (1) and a large gear (3) meshing with the small gear (2), and the large gear (3) is connected to the eccentric cam (4); The eccentric cam (4) is provided with a shaft sleeve (41) outside, the shaft sleeve (41) is connected to the connecting rod (5), the connecting rod (5) comprises a rod body (51) connected to the shaft sleeve (41) and a U-shaped connecting portion (52) connected to the rod body (51), and the plunger connecting rod (7) is disposed inside the U-shaped connecting portion (52) and connected to the plunger connecting rod (7) via a rotating shaft.

2. The electronic water pump for a water jet loom according to claim 1, characterized in that: The plunger connecting rod (7) is sleeved with a linear bearing (6) and can slide relative to the linear bearing (6) to limit the moving direction of the plunger connecting rod (7) and prevent the plunger (8) from being damaged.

3. The electronic water pump for a water jet loom according to claim 2, characterized in that: The water pump body (9) contains a one-way valve, which enables water to enter and spray out in a single direction through the reciprocating motion of the plunger (8) and controls the amount of water by controlling the size of the cam offset.

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