CN215561064U - Front tow boat device with constant-pressure tow boat - Google Patents
Front tow boat device with constant-pressure tow boat Download PDFInfo
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- CN215561064U CN215561064U CN202121450799.6U CN202121450799U CN215561064U CN 215561064 U CN215561064 U CN 215561064U CN 202121450799 U CN202121450799 U CN 202121450799U CN 215561064 U CN215561064 U CN 215561064U
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Abstract
The utility model relates to the technical field of sewing machine equipment, in particular to a front tug device with a constant-pressure cloth tug.A cloth tension is accurately controlled through a pressure stabilizing wheel group and an air pressure wheel group, when the cloth tension is overlarge, the displacement distance of the pressure stabilizing wheel is short, otherwise, the displacement distance of the pressure stabilizing wheel is long; the greater the cloth clamping force of the air pressure wheel and the guide roller in the air pressure wheel group is, the greater the cloth dragging force of the cloth dragging wheel is, so that the tension of the cloth is enhanced, and otherwise, the tension of the cloth is reduced; therefore, the pressure stabilizing wheel set and the air pressure wheel set are connected through the adjusting device, so that the force of the air pressure wheel on the guide roller is reduced when the displacement distance of the pressure stabilizing wheel is short; the steady voltage wheel displacement is long apart from the long term, and increase pressure wheel is to the dynamics of guide roller to the realization also can guarantee tension control's precision at frequent acceleration and deceleration in-process to the tensile accurate control of cloth, and can adapt to the cloth that trades different coefficient of elasticity.
Description
Technical Field
The utility model belongs to the technical field of sewing machine equipment, and particularly relates to a front tug device with a constant-pressure cloth tug.
Background
The existing industrial sewing machine has tension control requirement when sewing elastic cloth, and the tension control to the elastic cloth is realized by using a front tug device at present. The tension control principle of the existing front tug is that tension of elastic cloth is indirectly controlled by controlling the speed difference between the rotating speed of the tug and the rotating speed of a spindle motor, and the tension control mode has the problems that tension precision is not high, tension fluctuation is large during speed fluctuation, different elastic cloths cannot be self-adapted, and the like.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
The utility model aims to solve the problems that how to improve the precision of the sewing machine for controlling the tension of cloth and the tension control precision can be ensured in the process of frequent acceleration and deceleration.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the utility model is as follows: a front mop wheel device with a constant-pressure mop wheel comprises a workbench and a machine body arranged above the workbench, wherein the machine body is provided with a sewing needle facing the workbench, one side of the machine body is provided with a rear mop wheel component through a connecting piece, and the other side of the machine body is provided with a front pressure stabilizing component; the rear mop wheel assembly comprises a mop wheel arranged at the tail end of the connecting piece and a driving device used for driving the mop wheel to rotate; the front pressure stabilizing assembly comprises a supporting shell, a pressure stabilizing wheel set and an air pressure wheel set, wherein the pressure stabilizing wheel set and the air pressure wheel set are arranged on the supporting shell; the workbench is provided with a groove corresponding to the pressure stabilizing wheel set, the groove edge of the groove is provided with a guide roller, and the air pressure wheel set is arranged corresponding to the guide roller.
Preferably, the pressure stabilizing wheel group comprises a pressure stabilizing wheel arranged corresponding to the groove and a constant pressure device used for pushing the pressure stabilizing wheel, the pressure stabilizing wheel is connected with the constant pressure device through a telescopic rod, and the air pressure wheel group comprises an air pressure wheel arranged in a manner of abutting against the guide roller and an air pressure device used for pushing the air pressure wheel; an adjusting device is arranged between the air pressure device and the telescopic rod and used for adjusting the pressure intensity in the air pressure device according to the movement of the telescopic rod.
Preferably, air pressure device includes the atmospheric pressure cavity and promotes the atmospheric pressure pole of atmospheric pressure wheel, the atmospheric pressure cavity is provided with gas outlet and air inlet, the air inlet is connected with the air pump, the gas outlet with be provided with the spout between the air inlet, adjusting device including adjust the pole with set up in adjust the regulating plate of pole one end, the regulating plate set up in the atmospheric pressure cavity, and can seal the cover the gas outlet the air inlet with the spout, it keeps away from to adjust the pole the one end of regulating plate link up the spout with the middle section fixed connection of telescopic link.
Preferably, the middle section of telescopic link is provided with a plurality of and follows a plurality of fixed slot that telescopic link length direction arranged, the regulation pole is kept away from the one end of regulating plate be provided with fixed slot matched with fixed arch.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:
according to the front tug boat device with the constant-pressure cloth tug boat, a proper pressure value is set through the pressure stabilizing wheel set, cloth of the pressure stabilizing wheel is pushed to the direction of the groove in the workbench according to the set pressure value, when the tension of the cloth is too large, the displacement distance of the pressure stabilizing wheel is short, and otherwise, the displacement distance of the pressure stabilizing wheel is long; the greater the cloth clamping force of the air pressure wheel and the guide roller in the air pressure wheel group is, the greater the cloth dragging force of the cloth dragging wheel is, so that the tension of the cloth is enhanced, and otherwise, the tension of the cloth is reduced; therefore, the pressure stabilizing wheel set and the air pressure wheel set are connected through the adjusting device, so that the force of the air pressure wheel on the guide roller is reduced when the displacement distance of the pressure stabilizing wheel is short; the steady voltage wheel displacement is long apart from the long term, and increase pressure wheel is to the dynamics of guide roller to the realization also can guarantee tension control's precision at frequent acceleration and deceleration in-process to the tensile accurate control of cloth, and can adapt to the cloth that trades different coefficient of elasticity.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic structural diagram of a pre-regulator assembly according to the present invention;
FIG. 3 is a schematic diagram of a pneumatic chamber according to the present invention.
The reference numerals in the schematic drawings illustrate:
100. a work table; 110. a groove; 120. a guide roller; 200. a body; 210. a sewing needle; 220. a connecting member; 230. a rear mop wheel assembly; 231. a mop wheel; 300. a front voltage stabilizing component; 310. a support housing; 320. a pressure stabilizing wheel set; 321. a pressure stabilizing wheel; 322. a constant pressure device; 323. a telescopic rod; 324. fixing grooves; 330. an air pressure wheel set; 331. a pneumatic wheel; 332. an air pressure device; 301. an air pressure chamber; 302. a pneumatic rod; 303. an air outlet; 304. An air inlet; 305. a chute; 306. an air pump; 340. an adjustment device; 341. adjusting a rod; 342. an adjusting plate; 343. and fixing the protrusion.
Detailed Description
In order to facilitate an understanding of the utility model, the utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the utility model are shown, but which may be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of providing a more thorough disclosure of the utility model.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
Referring to fig. 1 to fig. 3, the present embodiment provides a technical solution: a front tow boat device with constant-pressure tow boat comprises a workbench 100 and a body 200 arranged above the workbench 100, wherein the body 200 is provided with a sewing needle 210 facing the workbench 100, one side of the body 200 is provided with a rear tow boat assembly 230 through a connecting piece 220, and the other side is provided with a front pressure stabilizing assembly 300; the rear mop wheel assembly 230 comprises a mop wheel 231 arranged at the tail end of the connecting piece 220 and a driving device for driving the mop wheel 231 to rotate; the front voltage stabilizing assembly 300 comprises a supporting shell 310, and a voltage stabilizing wheel set 320 and an air pressure wheel set 330 which are arranged on the supporting shell 310; the workbench 100 is provided with a groove 110 corresponding to the pressure stabilizing wheel set 320, a guide roller 120 is arranged at the groove edge of the groove 110, and the air pressure wheel set 330 is arranged corresponding to the guide roller 120.
In a preferred embodiment, the pressure stabilizing wheel set 320 includes a pressure stabilizing wheel 321 disposed corresponding to the groove 110 and a constant pressure device 322 for pushing the pressure stabilizing wheel 321, the pressure stabilizing wheel 321 is connected to the constant pressure device 322 through an expansion link 323, and the air pressure wheel set 330 includes an air pressure wheel 331 disposed to be pressed against the guide roller 120 and an air pressure device 332 for pushing the air pressure wheel 331; an adjusting device 340 is arranged between the air pressure device 332 and the telescopic rod 323, and the adjusting device 340 is used for adjusting the pressure inside the air pressure device 332 according to the movement of the telescopic rod 323.
In the using process, the cloth enters from the front pressure stabilizing assembly 300, passes through the sewing needle 210, and is dragged out by the rear mop wheel assembly 230, the mop wheel 231 in the rear mop wheel assembly 230 drags the cloth according to a set speed, and the air pressure wheel group 330 and the guide roller 120 press the cloth. Therefore, the cloth is leveled by the mop wheel 231 and the air pressure wheel set 330, the greater the cloth clamping force of the air pressure wheel 331 and the guide roller 120 in the air pressure wheel set 330 is, the greater the cloth dragging force of the mop wheel 231 is, so that the tension of the cloth is enhanced, otherwise, the tension of the cloth is reduced; the pressure stabilizing wheel 321 presses the fabric according to a set pressure, and the larger the fabric tension is, the smaller the distance that the pressure stabilizing wheel 321 pushes the fabric is. Therefore, the adjusting device 340 is connected with the pressure stabilizing wheel set 320 and the air pressure wheel set 330, so that the force of the air pressure wheel 331 on the guide roller 120 is reduced when the displacement distance of the pressure stabilizing wheel 321 is short; when the displacement distance of the pressure stabilizing wheel 321 is long, the force of the air pressure wheel 331 on the guide roller 120 is increased, so that the tension of the cloth is controlled in a proper range, and the tension control of the cloth with different elastic coefficients can be realized.
In a preferred scheme, air pressure device 332 includes atmospheric pressure chamber 301 and promotes atmospheric pressure pole 302 of atmospheric pressure wheel 331, atmospheric pressure chamber 301 is provided with gas outlet 303 and air inlet 304, air inlet 304 is connected with air pump 306, gas outlet 303 with be provided with spout 305 between the air inlet 304, adjusting device 340 including adjust the pole 341 with set up in adjust the regulating plate 342 of pole 341 one end, regulating plate 342 set up in atmospheric pressure chamber 301, and can seal the cover gas outlet 303 air inlet 304 with spout 305, adjust pole 341 keeps away from the one end of regulating plate 342 link up spout 305 with the middle section fixed connection of telescopic link 323.
When the operation, when the tension of cloth reduces, the steady pressure wheel 321 drives telescopic link 323 downstream, simultaneously the regulation pole 341 drives regulating plate 342 with telescopic link 323 moves down in step, makes sealed cover in the regulating plate 342 of air inlet 304 is followed air inlet 304 separation, thereby air inlet 304 with air pump 306 switches on, makes air pump 306 is right the atmospheric pressure cavity 301 aerifys, atmospheric pressure increase in the atmospheric pressure cavity 301, thereby makes the thrust increase of atmospheric pressure pole 302 to increase the dynamics of atmospheric pressure wheel 331 to guide roller 120, make the tension increase of cloth.
When the tension of cloth increases, the pressure stabilizing wheel 321 drives the telescopic link 323 moves upwards, and simultaneously the adjusting rod 341 drives the adjusting plate 342 and the telescopic link 323 move upwards synchronously, so that the adjusting plate 342 of the gas outlet 303 is covered in a sealing manner, the gas outlet 303 is separated, gas in the air pressure chamber 301 overflows, the air pressure in the air pressure chamber 301 is reduced, and therefore the thrust of the air pressure rod 302 is reduced, the force of the air pressure wheel 331 on the guide roller 120 is reduced, and the tension of the cloth is reduced.
In a preferable scheme, a plurality of fixing grooves 324 are arranged in the middle section of the telescopic rod 323 along the length direction of the telescopic rod 323, and a fixing protrusion 343 matched with the fixing grooves 324 is arranged at one end of the adjusting rod 341 away from the adjusting plate 342.
The above-mentioned embodiments only express a certain implementation mode of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which are within the protection scope of the present invention; therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (4)
1. The utility model provides a preceding tow boat device with constant voltage mop wheel which characterized in that: the device comprises a workbench (100) and a machine body (200) arranged above the workbench (100), wherein the machine body (200) is provided with a sewing needle (210) facing the workbench (100), one side of the machine body (200) is provided with a rear mop wheel assembly (230) through a connecting piece (220), and the other side is provided with a front pressure stabilizing assembly (300); the rear mop wheel assembly (230) comprises a mop wheel (231) arranged at the tail end of the connecting piece (220) and a driving device for driving the mop wheel (231) to rotate; the front pressure stabilizing assembly (300) comprises a supporting shell (310), and a pressure stabilizing wheel set (320) and an air pressure wheel set (330) which are arranged on the supporting shell (310); the working table (100) is provided with a groove (110) corresponding to the pressure stabilizing wheel set (320), the groove edge of the groove (110) is provided with a guide roller (120), and the air pressure wheel set (330) is arranged corresponding to the guide roller (120).
2. The front tug boat assembly of claim 1, wherein: the pressure stabilizing wheel set (320) comprises a pressure stabilizing wheel (321) arranged corresponding to the groove (110) and a constant pressure device (322) used for pushing the pressure stabilizing wheel (321), the pressure stabilizing wheel (321) is connected with the constant pressure device (322) through an expansion rod (323), and the air pressure wheel set (330) comprises an air pressure wheel (331) arranged in a manner of being pressed against the guide roller (120) and an air pressure device (332) used for pushing the air pressure wheel (331); an adjusting device (340) is arranged between the air pressure device (332) and the telescopic rod (323), and the adjusting device (340) is used for adjusting the pressure in the air pressure device (332) according to the movement of the telescopic rod (323).
3. The front tug boat assembly of claim 2, wherein: air pressure equipment (332) includes atmospheric pressure chamber (301) and promotes atmospheric pressure pole (302) of atmospheric pressure wheel (331), atmospheric pressure chamber (301) is provided with gas outlet (303) and air inlet (304), air inlet (304) are connected with air pump (306), gas outlet (303) with be provided with spout (305) between air inlet (304), adjusting device (340) including adjust pole (341) with set up in adjust board (342) of pole (341) one end, adjust board (342) set up in atmospheric pressure chamber (301), and can seal and cover gas outlet (303), air inlet (304) with spout (305), it keeps away from to adjust pole (341) the one end of adjust board (342) link up spout (305) with the middle section fixed connection of telescopic link (323).
4. A front tug boat assembly with constant pressure tug boat of claim 3, wherein: the middle section of telescopic link (323) is provided with a plurality of along a plurality of fixed slot (324) that telescopic link (323) length direction was arranged, the one end that adjusting lever (341) kept away from regulating plate (342) be provided with fixed protruding (343) of fixed slot (324) matched with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121450799.6U CN215561064U (en) | 2021-06-28 | 2021-06-28 | Front tow boat device with constant-pressure tow boat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121450799.6U CN215561064U (en) | 2021-06-28 | 2021-06-28 | Front tow boat device with constant-pressure tow boat |
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| Publication Number | Publication Date |
|---|---|
| CN215561064U true CN215561064U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121450799.6U Active CN215561064U (en) | 2021-06-28 | 2021-06-28 | Front tow boat device with constant-pressure tow boat |
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| CN (1) | CN215561064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506084A (en) * | 2022-10-29 | 2022-12-23 | 上海瑞仓电子科技有限公司 | Control system and method for reducing damage of sewing machine needle |
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2021
- 2021-06-28 CN CN202121450799.6U patent/CN215561064U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506084A (en) * | 2022-10-29 | 2022-12-23 | 上海瑞仓电子科技有限公司 | Control system and method for reducing damage of sewing machine needle |
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