CN111286848A

CN111286848A - Yarn pressing device for water-jet loom

Info

Publication number: CN111286848A
Application number: CN202010121497.8A
Authority: CN
Inventors: 张文博; 陈群艺
Original assignee: Jiangsu Sansheng Textile Co ltd
Current assignee: Jiangsu Sansheng Textile Co ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-06-16

Abstract

The invention relates to a yarn presser for a water-jet loom, which comprises a base and a yarn presser body arranged on the base, wherein the yarn presser body comprises a rotating wheel, and the center of the rotating wheel is connected with a driving piece; the outer edge of the rotating wheel is detachably connected with a plurality of bulges, the outer edge of the rotating wheel is provided with a butting block, one end of the butting block butts against the outer edge of the rotating wheel, and the butting block is provided with an elastic piece for keeping the butting block always propped against the outer edge of the rotating wheel; one end of the abutting block, which is far away from the rotating wheel, is connected with a movable disc, the movable disc is arranged along the vertical direction, a fixed disc is arranged below the movable disc along the vertical direction, and the fixed disc is fixedly connected with the base; the movable disc moves downwards along the vertical direction to be contacted with the fixed disc when the butting block is contacted with the protrusions, and the movable disc is separated from the fixed disc when the butting block is not contacted with the protrusions. The invention has the effect of being more widely suitable for the yarn pressing work of different yarns.

Description

Yarn pressing device for water-jet loom

Technical Field

The invention relates to the technical field of looms, in particular to a yarn presser for a water-jet loom.

Background

The water jet loom drives weft yarns to pass through a shed at high speed by means of friction force between high-pressure water flow and the yarns to complete weft insertion. Water jet looms are widely used with low noise, low weaving cost, high speed, and high efficiency. The water jet loom includes one frame, and one shedding mechanism, one weft inserting mechanism, one beating-up mechanism, one let-off mechanism and one winding mechanism. The weft insertion mechanism comprises a yarn presser which is used for controlling weft yarns to enter a shed and finish flying so as to clamp the weft yarns, and the yarn presser is divided into a mechanical type yarn presser and an electronic type yarn presser. The electronic yarn pressing is controlled by an electric control program to be opened and closed, and is used for double nozzles and multi-nozzle, and the mechanical yarn pressing is mainly used for single nozzles.

The current chinese patent application with an authority bulletin number of CN110565240A discloses a be applied to hydraulic loom's yarn pressing device, including pressing the yarn ware main part and wearing to locate the inside axis body of pressing the yarn ware main part, one side of pressing the yarn ware main part is provided with the carousel, rotates on the carousel to be connected with the dwang, is provided with the support between pressing yarn ware main part and the carousel, rotates on the support to be connected with the swinging arms, and the one end of swinging arms is passed through first connecting rod and is rotated with the dwang and be connected. The dwang is circular motion along the rolling disc, drives first connecting rod and rotates to drive the swinging arms swing on the support, the swinging arms swing back and forth, and in the time, through the transmission of second connecting rod, drive the axis body and carry out up-and-down reciprocating motion.

The above prior art solutions have the following drawbacks: when the rotating rod of the yarn pressing device applied to the water jet loom does circular motion along the rotating disc, the shaft body is driven to do up-and-down reciprocating motion to perform yarn pressing action. The time required for the weft threads with different materials to pass through the warp threads is different due to the different materials of different yarns; in addition when the width of the cloth that needs to weave is different, the width of the weft that needs is also different, and the required time is also different when the weft passes warp, therefore above-mentioned presser can not be fine to the different weft time of passing warp of passing the presser adjusts the presser in order to adapt to different demands and carry out accurate presser action, and application scope is not extensive enough.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a yarn pressing device for a water jet loom, which has the advantage of being capable of being more widely applied to yarn pressing work of different yarns.

The above object of the present invention is achieved by the following technical solutions:

a yarn presser for a water-jet loom comprises a base and a yarn presser body arranged on the base, wherein the yarn presser body comprises a rotating wheel, and the center of the rotating wheel is connected with a driving piece for driving the rotating wheel to rotate around the center of the rotating wheel; the outer edge of the rotating wheel is detachably connected with a plurality of bulges, the outer edge of the rotating wheel is provided with a butting block, one end of the butting block butts against the outer edge of the rotating wheel, and the butting block is provided with an elastic piece for keeping the butting block always butted against the outer edge of the rotating wheel; one end, far away from the rotating wheel, of the abutting block is connected with a movable disc, the movable disc is arranged in the vertical direction, a fixed disc is arranged below the movable disc in the vertical direction, and the fixed disc is fixedly connected with the base; the movable plate moves downwards along the vertical direction to contact with the fixed plate when the butt joint block contacts with the protrusion, and the movable plate is separated from the fixed plate when the butt joint block does not contact with the protrusion.

Through adopting above-mentioned technical scheme, the arch of rotating wheel outer edge department can be dismantled, can adjust bellied position according to the weft of different materials and the cloth of different width. If a bulge is added on the rotating wheel when cloth with a certain width is woven, when the cloth with the original half width is woven, two bulges can be added on the rotating wheel, and the two bulges are positioned on a straight line where the diameter of the rotating wheel is positioned, so that when the rotating wheel rotates for one circle, the movable disk and the fixed disk can be contacted with each other twice, namely, twice yarn pressing actions are carried out, and the use universality of the yarn pressing device can be improved by increasing or decreasing the number of the bulges.

The present invention in a preferred example may be further configured to: a plurality of threaded holes are uniformly formed in the outer edge of the rotating wheel and are arranged along the diameter direction of the rotating wheel; each the arch all includes threaded rod and protruding piece, threaded rod and screw hole screw-thread fit.

Through adopting above-mentioned technical scheme, the threaded rod passes through threaded connection's mode and connects in the screwed hole, and threaded connection's mode had both guaranteed the stability of connecting, convenient to detach again.

The present invention in a preferred example may be further configured to: the rotating wheel is marked with scales, and a threaded hole is formed in the rotating wheel at certain intervals.

Through adopting above-mentioned technical scheme, it has the scale to make things convenient for the staff to observe and the installation arch more to rotate to take turns to, has guaranteed the accurate nature of protruding installation.

The present invention in a preferred example may be further configured to: one end, far away from the rotating wheel, of the abutting block is fixedly connected with a connecting rod along the horizontal direction, a first sleeve rod is fixedly connected to the base and is located on one side, far away from the rotating wheel, of the abutting block, the first sleeve rod is provided with a first hole along the horizontal direction, and one end, far away from the abutting block, of the connecting rod penetrates through the first hole and is connected with the movable disc; the elastic piece comprises a first spring, the first spring is sleeved on the connecting rod, the first spring is located between the abutting block and the first sleeve rod, and the first spring is in a natural state when the abutting block is not in contact with the protrusion.

Through adopting above-mentioned technical scheme, the elastic component is first spring, and the first spring is in natural state when the butt joint piece is not contacting with the arch, and after butt joint piece and protruding contact, first spring is compressed, and first spring has the elasticity of recovering original shape after being compressed, and the butt joint piece can be promoted to offseting with the lateral wall that rotates the wheel under the effect of the elasticity of first spring this moment.

The present invention in a preferred example may be further configured to: a fixed block is fixedly arranged on the base, the fixed block is positioned on one side of the connecting rod, which is far away from the abutting block, a movable rod is hinged on the fixed block, the hinged point of the movable rod and the fixed block is positioned in the length direction of the movable rod, and a sliding groove which penetrates through the movable rod is formed in the movable rod along the length direction of the movable rod; one end of the connecting rod, which is far away from the abutting block, is fixedly connected with a first sliding rod, the first sliding rod is arranged in a sliding groove in a sliding manner, a second sliding rod is arranged in the sliding groove in a sliding manner, and the second sliding rod is fixedly connected with a vertical rod; the fixed disc is provided with a through hole in a penetrating manner along the vertical direction, and one end of the vertical rod, which is far away from the second sliding rod, penetrates through the through hole to be fixedly connected with the movable disc.

Through adopting above-mentioned technical scheme, when butt piece and protruding contact, first slide bar can drive the movable rod and rotate, second slide bar in the sliding tray can drive vertical pole motion, because the one end that second slide bar was kept away from to vertical pole passes the perforation, consequently vertical pole can certainly remove along vertical direction, realize promptly when butt piece and protruding contact, vertical pole drives movable disk and contacts with the fixed disk, when butt piece not with protruding contact, the butt piece can keep with the outer offset of following of rotating wheel under the effect of first spring, first slide bar can drive the movable rod this moment, the movable rod can drive vertical pole upward movement, make movable disk keep away from the fixed disk.

The present invention in a preferred example may be further configured to: the first sliding rod and the second sliding rod are arranged in the sliding groove in a penetrating mode, and limiting blocks are arranged on the first sliding rod and the second sliding rod; one end of the first sliding rod in the length direction is fixedly connected with the connecting rod, and one end of the first sliding rod, which is far away from the connecting rod, penetrates through the sliding groove and is fixedly connected with the corresponding limiting block; one end of the second sliding rod in the length direction is fixedly connected with the vertical rod, and one end of the second sliding rod, far away from the vertical rod, penetrates through the sliding groove and is fixedly connected with the corresponding limiting block.

Through adopting above-mentioned technical scheme, can prevent after the stopper sets up that first slide bar and second slide bar break away from the sliding tray when sliding in the sliding tray.

The present invention in a preferred example may be further configured to: a stabilizing block is arranged below the fixed disc, the stabilizing block is fixedly connected with the vertical rod and is positioned above the second sliding rod, and a second spring is arranged between the stabilizing block and the fixed disc; the two ends of the second spring are respectively fixedly connected with the fixed disc and the stabilizing block, and the second spring is in a natural state when the abutting block is not in contact with the protrusions.

Through adopting above-mentioned technical scheme, the second spring is in compression state after movable dish and fixed disk contact, and the second spring has resilient elasticity this moment, thereby can help the movable disk to reset and make the movable disk keep away from the fixed disk.

The present invention in a preferred example may be further configured to: the second spring is sleeved on the vertical rod.

Through adopting above-mentioned technical scheme, the second spring cover is established and can be made the activity of second spring more stable on vertical pole.

The present invention in a preferred example may be further configured to: the diameter of the through hole is equal to that of the vertical rod, and the inner wall of the through hole and the outer side wall of the vertical rod are both smooth.

Through adopting above-mentioned technical scheme, the diameter of fenestrate diameter equals can more accurate assurance vertical pole can only follow vertical direction motion with the diameter of vertical pole, stability and accuracy when can guaranteeing to press the yarn.

The present invention in a preferred example may be further configured to: the driving piece comprises a motor and a gear box connected with a motor shaft of the motor, and an output shaft of the gear box is fixedly connected with the center of the rotating wheel.

Through adopting above-mentioned technical scheme, the motor and the gear box can be better the assurance rotate the balance when taking turns the rotation stable.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the arrangement of the rotating wheel, the plurality of bulges, the abutting blocks, the elastic piece, the movable disc and the fixed disc ensures that the bulges can be detached, the yarn can be pressed according to different requirements, and the application range of the yarn pressing device is improved;

2. through the arrangement of the first spring, the abutting block is always kept in contact with the outer edge of the rotating wheel.

Drawings

Fig. 1 is a schematic view showing the overall structure of a yarn presser for a water jet loom according to the present embodiment;

fig. 2 is a rear view of the yarn presser for the water jet loom shown in the present embodiment;

fig. 3 is an exploded view of the rotating wheel shown in the present embodiment.

In the figure, 1, a base; 11. a first loop bar; 13. a fixed block; 14. a movable rod; 141. a sliding groove; 142. a first slide bar; 143. a second slide bar; 144. a limiting block; 15. a vertical rod; 16. fixing the disc; 17. a movable disk; 18. a stabilizing block; 19. a second spring; 2. a presser body; 21. a rotating wheel; 211. a threaded hole; 212. a protrusion; 213. a threaded rod; 214. a protruding block; 22. a motor; 23. a gear case; 24. a butting block; 25. a connecting rod; 251. a first spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the yarn presser for the water jet loom disclosed by the invention comprises a base 1 and a yarn presser body 2 arranged on the base 1, wherein the yarn presser body 2 comprises a rotating wheel 21, and a driving piece for driving the rotating wheel 21 to rotate around the center of the rotating wheel 21 is connected to the center of the rotating wheel 21. The driving member comprises a motor 22 and a gear box 23 connected with the motor shaft of the motor 22, and the output shaft of the gear box 23 is fixedly connected with the center of the rotating wheel 21.

Referring to fig. 1 and 3, a plurality of threaded holes 211 are uniformly formed in the outer edge of the rotating wheel 21, specifically, the rotating wheel 21 is marked with 0 °, 90 °, 180 ° and 360 °, one threaded hole 211 is formed every 10 ° from 0 °, and the threaded holes 211 are formed along the diameter direction of the rotating wheel 21. Two protrusions 212 are detachably connected to the outer edge of the rotating wheel 21, specifically, each protrusion 212 includes a threaded rod 213 and a protruding block 214, and the threaded rod 213 is in threaded engagement with the threaded hole 211. The outer edge of the rotating wheel 21 is provided with a butting block 24, one end of the butting block 24 butts against the outer edge of the rotating wheel 21, and the butting block 24 is provided with an elastic piece for keeping the butting block 24 always butts against the outer edge of the rotating wheel 21.

Referring to fig. 1, one end of the rotation wheel 21 far away from the abutting block 24 is fixedly connected with a connecting rod 25 along the horizontal direction, the base 1 is fixedly connected with a first sleeve rod 11, the first sleeve rod 11 is located on one side of the abutting block 24 far away from the rotation wheel 21, the first sleeve rod 11 is provided with a first hole (not shown in the figure) along the horizontal direction, and one end of the connecting rod 25 far away from the abutting block 24 passes through the first hole. The diameter of the first hole is equal to the diameter of the connecting rod 25, and the inner wall of the first hole and the outer side wall of the connecting rod 25 are smooth. The elastic member is a first spring 251, the first spring 251 is sleeved on the connecting rod 25, the first spring 251 is located between the abutting block 24 and the first sleeve rod 11, two ends of the first spring 251 are respectively fixed with the abutting block 24 and the first sleeve rod 11, and the first spring 251 is in a natural state when the abutting block 24 is not in contact with the protrusion 212.

Referring to fig. 1, a fixed block 13 is fixedly arranged on a base 1, the fixed block 13 is located on one side of a connecting rod 25 far away from a butting block 24, a movable rod 14 is hinged to the fixed block 13, a hinged point of the movable rod 14 and the fixed block 13 is located in the length direction of the movable rod 14, and a sliding groove 141 penetrating through the movable rod 14 is formed in the movable rod 14 along the length direction of the movable rod 14. One end of the connecting rod 25 far away from the abutting block 24 is fixedly connected with a first sliding rod 142, the first sliding rod 142 is slidably arranged in the sliding groove 141, a second sliding rod 143 is slidably arranged in the sliding groove 141, and the second sliding rod 143 is fixedly connected with the vertical rod 15.

Referring to fig. 1, the first sliding rod 142 and the second sliding rod 143 are both inserted into the sliding groove 141, and the first sliding rod 142 and the second sliding rod 143 are both provided with a stopper 144. One end of the first sliding rod 142 in the length direction is fixedly connected with the connecting rod 25, and one end of the first sliding rod 142, which is far away from the connecting rod 25, penetrates through the sliding groove 141 and is fixedly connected with the corresponding limiting block 144; one end of the second sliding rod 143 in the length direction is fixedly connected with the vertical rod 15, and one end of the second sliding rod 143 away from the vertical rod 15 penetrates through the sliding groove 141 and is fixedly connected with the corresponding limiting block 144.

Referring to fig. 1, a fixed disk 16 is fixedly connected to the base 1 and arranged in the vertical direction, the fixed disk 16 is located on one side of the vertical rod 15, a through hole (not shown in the figure) is formed in the fixed disk 16 in a penetrating manner in the vertical direction, one end, far away from the second sliding rod 143, of the vertical rod 15 penetrates through the through hole and is fixedly connected with a movable disk 17, and the movable disk 17 is arranged in the vertical direction. The diameter of the perforation is equal to the diameter of the vertical rod 15, and the inner wall of the perforation and the outer side wall of the vertical rod 15 are both smooth.

Referring to fig. 1, a stabilizing block 18 is disposed below the fixed tray 16, and the stabilizing block 18 is fixedly connected to the vertical rod 15 and located above the second sliding rod 143. A second spring 19 is arranged between the stabilizing block 18 and the fixed disc 16, the second spring 19 is sleeved on the vertical rod 15, two ends of the second spring 19 are fixedly connected with the fixed disc 16 and the stabilizing block 18 respectively, and the second spring 19 is in a natural state when the abutting block 24 is not in contact with the protrusion 212.

Referring to fig. 1 and 2, the distance from the second sliding rod 143 to the end of the sliding groove 141 away from the link 25 is greater than the distance between the movable disk 17 and the fixed disk 16, ensuring that the abutment blocks 24 can be contacted between the movable disk 17 and the fixed disk 16 when they are contacted with the protrusions 212 as the motor 22 rotates. When the abutting pieces 24 are not in contact with the projections 212, the movable tray 17 is kept separated from the fixed tray 16. Along with the rotation of the motor 22, when the abutting block 24 contacts with the protrusion 212, the first spring 251 is compressed, the connecting rod 25 moves towards one end close to the movable rod 14, the first sliding rod 142 pushes the movable rod 14 to rotate under the action of the force in the horizontal direction, the movable rod 14 drives the second sliding rod 143 to move, because the second sliding rod 143 is fixedly connected with the vertical rod 15, the vertical rod 15 penetrates through the through hole of the fixed disk 16, the vertical rod 15 can move downwards in the vertical direction under the driving of the second movable rod 14, the movable disk 17 is driven to move downwards in the vertical direction to contact with the fixed disk 16, and the size of the protrusion 212 can ensure that the movable disk 17 contacts with the fixed disk 16.

The implementation principle of the above embodiment is as follows:

in the initial state, when the abutting pieces 24 are not in contact with the projections 212, the movable tray 17 is kept separated from the fixed tray 16.

When the yarn pressing work is needed, the protrusions 212 can be connected into the threaded holes 211 and the motor 22 can be started according to the requirements of cloth with different widths and yarns made of different materials. With the rotation of the rotating wheel 21, the protrusion 212 contacts with the abutting block 24, and the second movable rod 14 moves downward in the vertical direction, so as to drive the movable disc 17 to move downward in the vertical direction to contact with the fixed disc 16 for yarn pressing action. Then, the first spring 251 keeps the abutment block 24 in abutment with the outer edge of the rotating wheel 21 by its own elastic force, and the movable disk 17 is separated from the fixed disk 16.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A yarn pressing device for a water jet loom is characterized in that: the yarn pressing device comprises a base (1) and a yarn pressing device body (2) arranged on the base (1), wherein the yarn pressing device body (2) comprises a rotating wheel (21), and the center of the rotating wheel (21) is connected with a driving piece for driving the rotating wheel (21) to rotate around the center of the rotating wheel; the outer edge of the rotating wheel (21) is detachably connected with a plurality of bulges (212), the outer edge of the rotating wheel (21) is provided with a butting block (24), one end of the butting block (24) butts against the outer edge of the rotating wheel (21), and the butting block (24) is provided with an elastic piece which is used for enabling the butting block (24) to always keep butting against the outer edge of the rotating wheel (21); one end, far away from the rotating wheel (21), of the abutting block (24) is connected with a movable disc (17), the movable disc (17) is arranged along the vertical direction, a fixed disc (16) is arranged below the movable disc (17) along the vertical direction, and the fixed disc (16) is fixedly connected with the base (1); the movable disk (17) moves downwards along the vertical direction to contact with the fixed disk (16) when the abutting block (24) contacts with the protrusion (212), and the movable disk (17) is separated from the fixed disk (16) when the abutting block (24) does not contact with the protrusion (212).

2. The yarn presser for a water jet loom according to claim 1, characterized in that: a plurality of threaded holes (211) are uniformly formed in the outer edge of the rotating wheel (21), and the threaded holes (211) are formed in the diameter direction of the rotating wheel (21); each protrusion (212) comprises a threaded rod (213) and a protruding block (214), and the threaded rod (213) is in threaded fit with the threaded hole (211).

3. The yarn presser for a water jet loom according to claim 2, characterized in that: the rotary wheel (21) is marked with scales, and a threaded hole (211) is formed in the rotary wheel (21) at certain intervals.

4. The yarn presser for a water jet loom according to claim 1, characterized in that: one end, far away from the rotating wheel (21), of the abutting block (24) is fixedly connected with a connecting rod (25) along the horizontal direction, a first loop bar (11) is fixedly connected to the base (1), the first loop bar (11) is located on one side, far away from the rotating wheel (21), of the abutting block (24), a first hole is formed in the first loop bar (11) along the horizontal direction, and one end, far away from the abutting block (24), of the connecting rod (25) penetrates through the first hole to be connected with the movable disc (17); the elastic piece comprises a first spring (251), the first spring (251) is sleeved on the connecting rod (25), the first spring (251) is located between the abutting block (24) and the first sleeve rod (11), and the abutting block (24) is in a natural state when not in contact with the protrusion (212).

5. The yarn presser for a water jet loom according to claim 4, wherein: a fixed block (13) is fixedly arranged on the base (1), the fixed block (13) is positioned on one side, away from the abutting block (24), of the connecting rod (25), a movable rod (14) is hinged to the fixed block (13), a hinged point of the movable rod (14) and the fixed block (13) is positioned in the length direction of the movable rod (14), and a sliding groove (141) penetrating through the movable rod (14) is formed in the movable rod (14) along the length direction of the movable rod (14); one end, far away from the abutting block (24), of the connecting rod (25) is fixedly connected with a first sliding rod (142), the first sliding rod (142) is arranged in a sliding groove (141) in a sliding mode, a second sliding rod (143) is arranged in the sliding groove (141) in a sliding mode, and the second sliding rod (143) is fixedly connected with a vertical rod (15); the fixed disc (16) penetrates through a through hole in the vertical direction, and one end, far away from the second sliding rod (143), of the vertical rod (15) penetrates through the through hole to be fixedly connected with the movable disc (17).

6. The yarn presser for a water jet loom according to claim 5, characterized in that: the first sliding rod (142) and the second sliding rod (143) are arranged in the sliding groove (141) in a penetrating mode, and the first sliding rod (142) and the second sliding rod (143) are provided with limiting blocks (144); one end of the first sliding rod (142) in the length direction is fixedly connected with the connecting rod (25), and one end of the first sliding rod (142) far away from the connecting rod (25) penetrates through the sliding groove (141) to be fixedly connected with the corresponding limiting block (144); one end of the second sliding rod (143) in the length direction is fixedly connected with the vertical rod (15), and one end, far away from the vertical rod (15), of the second sliding rod (143) penetrates through the sliding groove (141) to be fixedly connected with the corresponding limiting block (144).

7. The yarn presser for a water jet loom according to claim 5, characterized in that: a stabilizing block (18) is arranged below the fixed disc (16), the stabilizing block (18) is fixedly connected with the vertical rod (15) and is positioned above the second sliding rod (143), and a second spring (19) is arranged between the stabilizing block (18) and the fixed disc (16); the two ends of the second spring (19) are respectively fixedly connected with the fixed disc (16) and the stabilizing block (18), and the second spring (19) is in a natural state when the abutting block (24) is not in contact with the protrusion (212).

8. The yarn presser for a water jet loom according to claim 7, characterized in that: the second spring (19) is sleeved on the vertical rod (15).

9. The yarn presser for a water jet loom according to claim 7, characterized in that: the diameter of the through hole is equal to that of the vertical rod (15), and the inner wall of the through hole and the outer side wall of the vertical rod (15) are smooth.

10. The yarn presser for a water jet loom according to claim 1, characterized in that: the driving piece comprises a motor (22) and a gear box (23) connected with a motor shaft of the motor (22), and an output shaft of the gear box (23) is fixedly connected with the center of the rotating wheel (21).