A water loom for producing high-toughness integrated packaging bags

Abstract

The present invention relates to the technical field of textile equipment, and discloses a high-toughness integrated water loom for producing packaging bags, wherein the piston rod is movably connected to an eccentric disk that is transmission-connected to the output shaft of a motor through a connecting rod, the eccentric disk is movably connected to the connecting rod through a connecting column, the eccentric disk is connected to an eccentric disk for adjusting the position of the connecting column, and a pressure control valve is provided on the water outlet side of the pump body, and the pressure control valve is opened when the pressure is greater than a set value. The high-toughness integrated water loom for producing packaging bags is driven by the eccentric disk to move the plunger directly, and the action is continuous, which reduces the noise generated by the collision and increases the textile speed. Secondly, the stroke of the plunger is adjustable, and the synchronous adjustment of the water pressure and the water spraying amount can be achieved with the adjustment of the spring, simplifying the adjustment process. In addition, the compression of the spring in the return process acts on the water pressure stroke, and provides pressure together with the torque increased by the motor, so that the output pressure is more stable and the torque requirement for the motor is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of textile equipment, in particular to a water loom for producing high-toughness integrated packaging bags. Background Art

[0002] Due to the high toughness and narrow width of the packaging bag, it is suitable for weaving with a water jet loom. The structure of the water jet loom mainly includes an opening mechanism, a weft insertion mechanism, a weft beating mechanism, a warp feeding mechanism, a winding mechanism and other auxiliary mechanisms. Among them, the weft insertion mechanism includes a plunger pump, a cam structure for driving the plunger pump, a pressurizing coil spring, a limit structure and a nozzle. The rotation of the cam drives the plunger pump to return and draw in a certain amount of water. At the same time, the coil spring is compressed or extended to store energy. When the cam is disengaged from the force arm, the coil spring is released and the water in the plunger pump is pressed out at a certain pressure. When the water is ejected from the nozzle, it drives the weft to move.

[0003] Since the water is pressed out by a coil spring and the release amount of the spring is adjusted by a limiting structure, thereby controlling the injection amount and injection pressure, on the one hand, the cam structure and the force arm will continuously disengage and contact, and the collision occurring during the contact time will produce noise. On the other hand, when the cam structure and the force arm are disengaged, the movement speed of the plunger is affected by the spring, which limits the rotation speed of the cam, thereby increasing the movement cycle and limiting the textile speed.

[0004] Secondly, due to the different materials, different widths of wefts and different loom speeds, the requirements for water spray volume and water spray pressure are different, and the maximum stroke of the plunger driven by the cam structure is fixed, and the compression amount of the plunger on the coil spring is also fixed. Therefore, each adjustment requires the diameter of the plunger pump and the elastic coefficient of the spring to be adjusted at the same time, which complicates the adjustment process. Summary of the invention

[0005] In view of the shortcomings of the above-mentioned background technology, the present invention provides a technical solution for a water loom for the production of high-toughness integrated packaging bags. The eccentric disk directly drives the piston to move, and the action is continuous, which reduces the noise generated by collision and increases the weaving speed. At the same time, since the stroke of the plunger is adjustable and combined with the adjustment of the spring, the water pressure and the water spray volume can be adjusted synchronously, which solves the problems raised by the background technology.

[0006] The present invention provides the following technical solution: a water loom for producing high-toughness integrated packaging bags, comprising a weft insertion mechanism, the weft insertion structure comprising a water storage tank, a weft insertion nozzle and a plunger pump, the plunger pump sucks water stored in the water storage tank and transports it to the weft insertion nozzle, the plunger pump comprises a pump body, a water pressure chamber is provided on one side of the pump body, a plunger capable of reciprocating movement is provided in the water pressure chamber, the plunger is fixedly connected to a piston rod, the piston rod is movably connected to an eccentric disk drivingly connected to an output shaft of a motor through a connecting rod, the eccentric disk is movably connected to the connecting rod through a connecting column, the eccentric disk is connected to an adjusting disk for adjusting the position of the connecting column, a pressure control valve is provided on the water outlet side of the pump body, and the pressure control valve is opened when the pressure is greater than a set value.

[0007] Preferably, a spring is provided in the water pressure chamber, one end of the spring is connected to the plunger, and the other end of the spring is connected to an adjustment plate for adjusting the initial pressure of the spring.

[0008] Preferably, the adjusting disk is a ring with an adjusting groove, the adjusting disk is movably connected to the eccentric disk, the eccentric disk is provided with a radial slide groove, the connecting column passes through the adjusting groove and the slide groove, and the eccentric disk and the adjusting disk are provided with a locking structure.

[0009] Preferably, the locking structure consists of an adjusting gear and a tooth groove arranged on the side wall of the eccentric disk.

[0010] Preferably, the plunger is movably connected to a piston rod, and a stopper is provided at the end of the piston rod to prevent the plunger from sliding out.

[0011] Preferably, the piston rod is formed by an outer rod and an inner rod which are sleeved together, a locking pin is provided between the outer rod and the inner rod, and the side wall of the water pressure chamber is provided with an adjustment block which can move axially, and the locking pin releases the connection between the outer rod and the inner rod when it moves to the position of the adjustment block.

[0012] Preferably, the pressure control valve comprises a valve housing connected to the pump body, a movable plug is provided in the valve housing, the movable plug is connected to a positioning plate via a control spring, and the position of the positioning plate can be adjusted.

[0013] The present invention has the following beneficial effects:

[0014] 1. The high-toughness integrated packaging bag production water loom uses an eccentric disk to directly drive the plunger to move, and the action is continuous. On the one hand, it reduces the noise caused by collision, and on the other hand, the eccentric disk can rotate faster and increase the spinning speed.

[0015] 2. The high-toughness integrated packaging bag production water loom has an adjustable plunger stroke. With the adjustment of the spring, the water pressure and the amount of water spray can be adjusted synchronously, simplifying the adjustment process. At the same time, the compression of the spring during the return process acts on the water pressure stroke, and together with the increased torque of the motor, it provides pressure. On the one hand, it makes the output pressure more stable, and on the other hand, it reduces the torque requirement for the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the weft insertion mechanism in the present invention;

[0017] Figure 2 It is a structural schematic diagram of the plunger pump in the present invention;

[0018] Figure 3 It is a structural schematic diagram of the eccentric disk in the present invention;

[0019] Figure 4 A partial cross-sectional view of the water pressure chamber of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the piston rod in the present invention;

[0021] Figure 6 It is a schematic diagram of the structure of the pressure control valve in the present invention.

[0022] In the figure: 1. water storage tank; 2. weft insertion nozzle; 3. plunger pump; 31. pump body; 32. water outlet; 33. water inlet; 34. water pressure chamber; 35. piston rod; 36. connecting rod; 37. eccentric disk; 38. adjusting disk; 39. adjusting gear; 310. adjusting plate; 311. spring; 312. plunger; 313. pressure control valve; 3131. valve housing; 3132. moving plug; 3133. control spring; 3134. positioning plate; 314. connecting column; 315. adjusting slot; 351. outer rod; 352. inner rod; 353. locking pin; 316. slide slot; 317. adjusting block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1 and Figure 2A water loom for producing high-toughness integrated packaging bags includes a weft insertion mechanism, the weft insertion structure includes a water storage tank 1, a weft insertion nozzle 2 and a plunger pump 3, the water storage tank 1, the weft insertion nozzle 2 and the plunger pump 3 are fixed to the frame of the water loom (not shown in the figure), the plunger pump 3 sucks the water stored in the water storage tank 1 and transports it to the weft insertion nozzle 2, the weft insertion nozzle 2 uses the sprayed water to insert the weft yarn, the plunger pump 3 includes a pump body 31, one end of the pump body 31 is connected to the water storage tank 1 through a water inlet 33, and the other end is provided with a water outlet 32, the water outlet 32 ​​is connected to the weft insertion nozzle 2, a water pressure chamber 34 is provided on one side of the pump body 31, a plunger 312 that can move back and forth is provided in the water pressure chamber 34, and the plunger 312 is fixedly connected to a piston rod 35, the piston rod 35 is movably connected to an eccentric disk 37 drivingly connected to the motor output shaft through a connecting rod 36, the eccentric disk 37 is movably connected to the connecting rod 36 through a connecting column 314, the eccentric disk 37 is connected to an adjusting disk 38 for adjusting the position of the connecting column 314, and the reciprocating stroke of the plunger 312 is adjusted by adjusting the distance between the connecting column 314 and the axis, a pressure control valve 313 is provided between the pump body 31 and the water outlet 32, the pressure control valve 313 is opened when the pressure is greater than a set value, as the eccentric disk 37 drives the plunger 312 to move, the water pressure in the pump body 31 gradually increases, the pressure control valve 313 is opened when the water pressure reaches the set value, to ensure that the water pressure meets the requirements during injection.

[0025] In this embodiment, a spring 311 is provided in the water pressure chamber 34. One end of the spring 311 is connected to the plunger 312, and the other end is connected to an adjustment plate 310 for adjusting the initial pressure of the spring 311. The adjustment plate 310 is threadedly connected to the water pressure chamber 34, and its initial position is adjusted by rotation, thereby adjusting the initial pressure of the spring 311. The piston rod 35 passes through the adjustment plate 310 without contacting the adjustment plate 310. Energy is stored by the return stroke of the plunger 312 and released when water is pressed, so that the force is evenly distributed, thereby reducing the torque requirement for the output motor.

[0026] See also Figure 2 and Figure 3 In this embodiment, the adjusting disk 38 is a ring with an adjusting groove 315. The adjusting disk 38 is movably connected to the eccentric disk 37. The eccentric disk 37 and the adjusting disk 38 are connected to the same rotating shaft. A radial sliding groove 316 is provided on the eccentric disk 37. The connecting column 314 passes through the adjusting groove 315 and the sliding groove 316. The side wall of the connecting column 314 is tangent to the side walls of the adjusting groove 315 and the sliding groove 316 to prevent the connecting column 314 from shaking. The two ends of the connecting column 314 are clamped with nuts to clamp the eccentric disk 37 and the adjusting disk 38. When the adjusting disk 38 rotates relative to the eccentric disk 37, the connecting column 314 is driven to radially move the eccentric disk 37 and the adjusting disk 38. A locking structure is provided. After locking, the eccentric disk 37 and the adjusting disk 38 can be prevented from rotating relative to each other.

[0027] The locking structure consists of an adjusting gear 39 and a tooth groove arranged on the side wall of the eccentric disk 37. The adjusting gear 39 rotates to drive the eccentric disk 37 and the adjusting disk 38 to rotate relative to each other. The eccentric disk 37 may be provided with corresponding scale lines. The angle of the reverse relative movement of the scale lines can reflect the stroke size of one rotation. After adjusting to the target angle, the adjusting gear 39 is locked so that the adjusting gear 39 cannot rotate. The adjusting gear 39 is connected to the adjusting disk 38 through a connecting block. The facing end faces of the adjusting disk 38 and the adjusting gear 39 are provided with a slot, and the rotation of the adjusting gear 39 can be limited when the two are pressed tightly. The adjusting gear 39 can also be a screw tangent to the eccentric disk 37, and the locking is achieved by utilizing the self-locking property of the screw.

[0028] See also Figure 4 In this embodiment, the plunger 312 is movably connected to the piston rod 35, and a block is provided at the end of the piston rod 35 to prevent the plunger 312 from sliding out. When the eccentric disk 37 is driven, when it moves to the middle of the stroke, the speed is faster and the plunger 312 slides. When it approaches the dead point, the speed is slower and the plunger 312 resets, achieving a buffering effect and making the injection pressure more stable.

[0029] See also Figure 4 and Figure 5 In this embodiment, the piston rod 35 is formed by an outer rod 351 and an inner rod 352 which are sleeved with each other. A locking pin 353 is provided between the outer rod 351 and the inner rod 352. An adjustment block 317 which can move axially is provided on the side wall of the water pressure chamber 34. A connecting groove is provided on the side wall of the water pressure chamber 34. The adjusting block 317 can slide along the connecting groove and move to the target position and tighten the nut to clamp the water pressure chamber 34 in position. When the locking pin 353 moves to the position of the adjusting block 317, the connection between the outer rod 351 and the inner rod 352 is released. A magnet is provided on the inner side of the adjusting block 317 to generate suction on the locking pin 353. The inner rod 352 is sleeved into the outer rod 351. The outer rod 351 and the plunger 31 2 connection, the locking pin 353 is arranged on the side wall of the outer rod 351, and the elastic structure allows the locking pin 353 to be inserted into the outer rod 351, so that the two can move axially synchronously. When the locking pin 353 moves to the position of the adjustment block 317, the suction pulls out the locking pin 353, and the outer rod 351 and the inner rod 352 are separated. The adjustment block 317 corresponds to the dead point of the return stroke. Since the lateral component speed at the initial position of the stroke is slow, the outer rod 351 and the plunger 312 move under the action of the spring 311 at this time to ensure the water output and water output speed at the initial stage of the water spray. As the lateral component speed increases, the inner rod 352 catches up with and is inserted into the outer rod 351, and the locking pin 353 is stuck in the inner rod 352, so that the two can move synchronously.

[0030] See also Figure 6In the present embodiment, the pressure control valve 313 includes a valve housing 3131 connected to the pump body 31, and a movable plug 3132 is provided in the valve housing 3131. The movable plug 3132 is connected to a positioning plate 3134 through a control spring 3133. The position of the positioning plate 3134 can be adjusted. The positioning plate 3134 is threadedly connected to the valve housing 3131. The position of the positioning plate 3134 is adjusted by rotation, and the pressure of the control spring 3133 is adjusted. The water outlet 32 ​​is provided on one side of the valve housing 3131. As the movable plug 3132 moves, when the water pressure reaches a set value, the water outlet 32 ​​is connected to the valve housing 3131.

[0031] Working principle and workflow of the present invention:

[0032] Before use, the eccentric disk 37 and the adjusting disk 38 are made to rotate relative to each other by adjusting the gear 39, thereby adjusting the position of the connecting column 314 from the axis, adjusting the stroke of one rotation, and then rotating the adjusting plate 310 to adjust the initial pressure of the spring 311, and finally rotating the positioning plate 3134 to adjust the water outlet pressure. During operation, the eccentric disk 37 rotates to drive the plunger 312 to move back and forth. During the return stroke, the spring 311 is further compressed. During the water pressure stroke, the spring 311 and the plunger 312 work together to achieve the target water outlet pressure, and the pressure control valve 313 is opened, and water flows out from the weft insertion nozzle 2, driving the weft thread to move.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water loom for producing high-toughness integrated packaging bags, comprising a weft insertion mechanism, wherein the weft insertion structure comprises a water storage tank (1), a weft insertion nozzle (2) and a plunger pump (3), wherein the plunger pump (3) sucks water stored in the water storage tank (1) and transports the water to the weft insertion nozzle (2), characterized in that: The plunger pump (3) comprises a pump body (31), one side of the pump body (31) is provided with a water pressure chamber (34), a reciprocating plunger (312) is provided in the water pressure chamber (34), the plunger (312) is fixedly connected to a piston rod (35), the piston rod (35) is movably connected to an eccentric disk (37) which is transmission-connected to the output shaft of a motor through a connecting rod (36), the eccentric disk (37) is movably connected to the connecting rod (36) through a connecting column (314), the eccentric disk (37) is connected to an adjusting disk (38) for adjusting the position of the connecting column (314), a pressure control valve (313) is provided on the water outlet side of the pump body (31), the pressure control valve (313) is opened when the pressure is greater than a set value, and a reciprocating plunger (312) is provided in the water pressure chamber (34). A spring (311), one end of the spring (311) is connected to a plunger (312), and the other end is connected to an adjustment plate (310) for adjusting the initial pressure of the spring (311); the plunger (312) is movably connected to a piston rod (35); a stopper for blocking the plunger (312) from sliding out is provided at the end of the piston rod (35); the piston rod (35) is formed by an outer rod (351) and an inner rod (352) being sleeved together; a locking pin (353) is provided between the outer rod (351) and the inner rod (352); a side wall of the water pressure chamber (34) is provided with an adjustment block (317) capable of axial movement; when the locking pin (353) moves to the position of the adjustment block (317), the connection between the outer rod (351) and the inner rod (352) is released.

2. The water loom for producing high-toughness integrated packaging bags according to claim 1, characterized in that: The adjusting disk (38) is a circular ring with an adjusting groove (315). The adjusting disk (38) is movably connected to the eccentric disk (37). The eccentric disk (37) is provided with a radial sliding groove (316). The connecting column (314) passes through the adjusting groove (315) and the sliding groove (316). The eccentric disk (37) and the adjusting disk (38) are provided with a locking structure.

3. The water loom for producing high-toughness integrated packaging bags according to claim 2, characterized in that: The locking structure is composed of an adjusting gear (39) and a tooth groove arranged on the side wall of the eccentric disk (37).

4. The water loom for producing high-toughness integrated packaging bags according to claim 1, characterized in that: The pressure control valve (313) comprises a valve housing (3131) connected to the pump body (31), a movable plug (3132) is provided in the valve housing (3131), and the movable plug (3132) is connected to a positioning plate (3134) via a control spring (3133), and the position of the positioning plate (3134) can be adjusted.

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