CN214736576U

CN214736576U - Rubber band machine

Info

Publication number: CN214736576U
Application number: CN202120918851.XU
Authority: CN
Inventors: 董克兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-11-16
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a rubber band machine relates to and makes up equipment technical field, and its technical scheme main points are: the automatic feeding device comprises a mounting frame, a feeding mechanism, an adjusting mechanism, a detecting mechanism and a controller, wherein the feeding mechanism, the adjusting mechanism, the detecting mechanism and the controller are arranged on the mounting frame at intervals; the feeding mechanism can convey the elastic band to the adjusting mechanism; the adjusting mechanism can adjust the tension of the elastic band; the detection mechanism can detect the tension of the elastic band; the controller is electrically connected with the feeding mechanism, the adjusting mechanism and the detecting mechanism, and the controller can control the feeding mechanism and the adjusting mechanism to work. The feeding mechanism feeds the elastic band to the adjusting mechanism, the sewing speed of the sewing position is fixed, the controller controls the feeding speed of the adjusting mechanism to the elastic band, the tension of the elastic band is controlled, when the tension of the elastic band changes, the controller adjusts the feeding speed of the adjusting mechanism accordingly, the process of manually adjusting the tension of the elastic band is avoided, and the elastic band feeding mechanism is suitable for processing of ordinary processing personnel.

Description

Rubber band machine

Technical Field

The utility model relates to a make up equipment technical field, in particular to rubber band machine.

Background

The rubber band is used as a common material in clothing products, has extensibility and automatic resetting performance, and is widely applied, for example, to cuffs of coats, underpants or underwear of women.

In the production of elastic rings, bundled or coiled elastic bands are generally used as raw materials, and are cut in sections and sewn into rings, and in the processing process, the elastic bands serving as the raw materials need to be automatically fed by a feeding device.

The elastic rings used in different clothes are different, for example, the elastic rings of each part in the underwear are different in required tightness, so that when the elastic rings are sewn, the tension of the elastic rings needs to be controlled manually, the finished elastic rings are difficult to unify, and the sewing quality is influenced; and the mode has higher requirements on the processing experience of processing personnel, is not convenient for the processing personnel to use and is not suitable for large-scale production.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an elastic sewing machine, it has the tensile advantage in elastic band area that can effective control.

The above technical purpose of the present invention can be achieved by the following technical solutions: an elastic sewing machine comprises a mounting frame, a feeding mechanism, an adjusting mechanism, a detecting mechanism and a controller, wherein the feeding mechanism, the adjusting mechanism, the detecting mechanism and the controller are arranged on the mounting frame at intervals;

the feeding mechanism can convey the elastic band to the adjusting mechanism;

the adjusting mechanism can adjust the tension of the elastic band;

the detection mechanism can detect the tension of the elastic band;

the controller is electrically connected with the feeding mechanism, the adjusting mechanism and the detecting mechanism, and can control the feeding mechanism and the adjusting mechanism to work.

Through the technical scheme, the free end in rubber band area passes feed mechanism, adjustment mechanism, detection mechanism, make the free end in rubber band area supply with to sewing department, feed mechanism then feeds the rubber band area to adjustment mechanism direction, under the fixed condition of sewing speed of sewing department, controller control adjustment mechanism is to the feed speed in rubber band area, the realization is to the purpose of rubber band area tension control, detection mechanism then guarantees tensile stability, when rubber band area tension changes, the controller adjusts adjustment mechanism's feed speed thereupon, the process of manual regulation rubber band area tension has been avoided, be applicable to ordinary processing personnel's processing.

Preferably, the feeding mechanism comprises a feeding motor and a feeding rotating wheel, the feeding motor is fixed to the mounting frame, the feeding motor is electrically connected with the controller, the feeding rotating wheel is connected with an output shaft of the feeding motor, and the feeding motor can drive the feeding rotating wheel to rotate.

Through the technical scheme, the free end of the rubber band belt is wound on the feeding rotating wheel, and the controller controls the feeding motor to work, so that the feeding motor drives the feeding rotating wheel to rotate, and feeding of the rubber band belt is achieved.

Preferably, the adjusting mechanism comprises an adjusting drive source, an adjusting roller and a pressing assembly, the adjusting drive source is fixed with the mounting frame, the adjusting roller is connected with the output end of the adjusting drive source, the adjusting drive source can drive the adjusting roller to rotate, the pressing assembly is arranged on the mounting frame, and the pressing assembly can be close to and far away from the adjusting roller; the elastic band is located between the pressing assembly and the adjusting roller.

Through above-mentioned technical scheme, the elastic band passes and compresses tightly between subassembly and the dancer roll for compress tightly the subassembly and be close to the dancer roll, the elastic band just is held with the dancer roll centre gripping by compressing tightly the subassembly, adjusts the output drive dancer roll of driving source and rotates the back, alright realize feeding in the elastic band, the rotational speed and the rotation direction alright adjustment elastic band's of adjustment dancer roll feed speed and tension.

Preferably, the compressing assembly comprises a compressing roller, a connecting piece and a first tension spring, the compressing roller is rotatably connected with the connecting piece, the outer wall of the compressing roller can be attached to the outer wall of the adjusting roller, the connecting piece is hinged to the mounting frame, one end of the first tension spring is connected with the mounting frame, the other end of the first tension spring is connected with the connecting piece, the first tension spring can apply pre-tightening force close to the adjusting roller to the connecting piece, and the compressing roller compresses the elastic band to the outer wall of the adjusting roller.

Through the technical scheme, under normal conditions, the tension spring I applies pretightening force to the connecting piece in the direction of the pressing roller, so that the elastic band is clamped by the pressing roller and the adjusting roller; when the elastic band is arranged between the adjusting roller and the pressing roller, the pressing roller can be lifted away from the adjusting roller, and the elastic band can be easily arranged between the pressing roller and the adjusting roller.

Preferably, the connecting piece comprises a first connecting rod, a middle shaft and a second connecting rod, the middle shaft is rotatably connected with the mounting frame, the end parts of the first connecting rod and the second connecting rod are connected with the middle shaft, the compression roller is connected with the first connecting rod, and the second connecting rod is connected with one end of the first tension spring; the compressing assembly further comprises a handle, the handle is hinged to the mounting rack, a cam is connected to the handle, the cam is located between the second connecting rod and the adjusting driving source, the outer ring of the cam can be attached to the outer wall of the second connecting rod, the cam is provided with a yielding surface, the yielding surface is parallel to the outer wall of the second connecting rod, and the compressing roller is attached to the outer wall of the adjusting roller.

Through the technical scheme, the second connecting rod and the first connecting rod can drive the compression roller to be close to or far away from the adjusting roller in the process of rotating around the middle shaft; the handle drives the cam to rotate, so that the outer ring of the cam slides along the outer ring of the second connecting rod, after the abdicating surface is far away from the second connecting rod, the first connecting rod, the second connecting rod and the compression roller are all in a state of being far away from the adjusting roller, and at the moment, the compression roller is far away from the adjusting roller; after the abdicating surface is parallel to the second connecting rod, the pressing roller presses the elastic band on the adjusting roller, namely the position of the pressing roller can be controlled through the handle.

Preferably, one side of the mounting frame, which is close to the second connecting rod, is provided with a first micro switch, the first micro switch is electrically connected with the controller, and the second connecting rod can be close to and far away from the first micro switch, so that the first micro switch is turned on or turned off.

Through the technical scheme, after the first handle control connecting rod is far away from the adjusting roller, the outer wall of the second connecting rod extrudes the first microswitch, the first microswitch is enabled to be opened, after the first microswitch is controlled to obtain a signal for opening the first microswitch, the pressing roller is far away from the adjusting roller, and the adjusting roller does not work at the moment.

Preferably, the detection mechanism includes detection element one, detection element one includes dead lever, round pin axle and gravity inductor, the one end of dead lever with the mounting bracket is articulated, the other end of dead lever with round pin hub connection, round pin axle supplies the rubber band to convolute, the gravity inductor set up in the dead lever is close to one side of round pin axle, just the gravity inductor with the controller electricity is connected.

Through above-mentioned technical scheme, the rubber band is seen off the back from the dancer rools direction, walks around the round pin axle earlier, later supplies with sewing department again, and when the epaxial rubber band of round pin had tension, can exert following effect to the round pin axle for gravity sensor detects, and the tension in rubber band area is big more, and then the gravity of applying to the round pin axle is big more, and different gravity numerical values correspond different tension numerical values, thereby realize the tensile detection of rubber band area.

Preferably, the detection mechanism further comprises a second detection assembly, the second detection assembly comprises a connecting shaft, a detection rod and a second microswitch, the connecting shaft is rotatably connected with the mounting frame, one end of the detection rod is connected with the connecting shaft, and the other end of the detection rod is provided with a abdicating hole for the rubber band to pass through; the mounting bracket is provided with a fixing plate, a second microswitch is arranged on the fixing plate and electrically connected with the controller, one side of the connecting shaft, which is close to the second microswitch, is provided with a trigger rod, and the trigger rod can be close to and far away from the second microswitch.

According to the technical scheme, after the elastic band passes through the abdicating hole of the detection rod, the elastic band passes through the space between the pressing assembly and the adjusting roller, namely the elastic band fed by the adjusting mechanism by the feeding mechanism passes through the abdicating hole, when the tension between the feeding mechanism and the adjusting mechanism is large, the elastic band can lift the detection rod upwards to enable the connecting shaft and the trigger rod to rotate synchronously, when the trigger rod rotates to the limit position, the trigger rod opens the micro switch II, and after the controller receives a signal of opening the micro switch II, the controller starts to control the feeding mechanism to accelerate the feeding speed, so that the tension of the elastic band between the feeding mechanism and the adjusting mechanism is reduced; when the tension of the elastic band is small, the detection rod sinks downwards, and the feeding mechanism starts normal feeding.

Preferably, the detection mechanism further comprises a third detection assembly, the third detection assembly comprises a rotating shaft, a gravity rod and a third microswitch, the rotating shaft is rotatably connected with the mounting frame, one end of the gravity rod is connected with the rotating shaft, the other end of the gravity rod is provided with a contact part which is in contact with the upper surface of the rubber band, and the contact part is positioned between the adjusting roller and the pin shaft; the third microswitch is fixed on the fixing plate and electrically connected with the controller, an extension rod is arranged on the rotating shaft, and the free end of the extension rod can be close to and far away from the third microswitch.

Through the technical scheme, the contact site on the gravity pole is placed in rubber band area top, when the rubber band area tension of regulating roller and round pin axle section is great, can upwards lift the gravity pole, the tension in rubber band area reduces, and when can not supporting the gravity pole, the gravity pole then can be to sinking under self action of gravity, after the gravity pole is to sinking, the gravity pole then drives pivot and extension rod rotation, three contacts of pivoted extension rod and micro-gap switch, and open micro-gap switch three, after the signal that micro-gap switch three opened is received to the controller, it is less to represent rubber band area tension between regulating roller and the round pin axle, thereby control regulating roller reduces the rotational speed, make the tension in rubber band area increase to predetermined numerical value.

Preferably, a shaping rod is arranged on the mounting frame, the shaping rod is located between the feeding mechanism and the adjusting mechanism, and a guide hole for the elastic band to pass through is formed in the shaping rod.

Through above-mentioned technical scheme, the rubber band all passes through the guiding hole at the supply process, can effectively avoid the planarization of rubber band area at the supply process, avoids the rubber band area to curl.

Drawings

FIG. 1 is a schematic external structural view of an embodiment;

FIG. 2 is a partial schematic structural view of the rubber band mounted in the embodiment;

FIG. 3 is a schematic external structural view of the embodiment, mainly used for showing the adjusting mechanism;

FIG. 4 is a schematic side view of the structure of FIG. 3;

FIG. 5 is a schematic structural view of a pressing assembly in an embodiment;

FIG. 6 is a schematic diagram of the back side of FIG. 3, mainly illustrating the structure of the first detecting element;

FIG. 7 is a schematic side view of the structure of FIG. 6;

FIG. 8 is a schematic structural diagram of a second and a third inspection assemblies in an embodiment;

FIG. 9 is another schematic view of the embodiment after installation of the elastic band.

Reference numerals: 100. a mounting frame; 110. a first microswitch; 120. a fixing plate; 130. a shaping rod; 131. a guide hole; 140. a second tensioning roller; 150. a third tensioning roller;

200. a feeding mechanism; 210. a feeding motor; 220. a feeding runner;

300. an adjustment mechanism; 310. adjusting the driving source; 320. a regulating roller; 321. a rubber layer; 330. a compression assembly; 331. a pressure roller; 332. a connecting member; 3321. a first connecting rod; 3322. an intermediate shaft; 3323. a second connecting rod; 333. a first tension spring; 334. a handle; 3341. a cam; 3342. a abdication surface;

400. a detection mechanism; 410. detecting a first component; 411. fixing the rod; 412. a pin shaft; 4121. a first tensioning roller; 4122. a limiting block; 413. a gravity sensor; 420. a second detection component; 421. a connecting shaft; 4211. a trigger lever; 422. a detection lever; 4221. a hole of abdication; 423. a second microswitch; 430. a third detection component; 431. a rotating shaft; 4311. an extension pole; 4312. a tension spring II; 432. a gravity bar; 4321. a contact portion; 433. a microswitch III;

500. a controller;

600. an elastic band.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

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

An elastic sewing machine, as shown in fig. 1 to 9, comprises a mounting frame 100, a feeding mechanism 200, an adjusting mechanism 300, a detecting mechanism 400 and a controller 500, wherein the feeding mechanism 200, the adjusting mechanism 300, the detecting mechanism 400 and the controller 500 are arranged on the mounting frame 100 at intervals;

the feeding mechanism 200 can convey the elastic band 600 to the adjusting mechanism 300;

the adjusting mechanism 300 can adjust the tension of the elastic band 600;

the detection mechanism 400 can detect the tension of the elastic band 600;

the controller 500 is electrically connected with the feeding mechanism 200, the adjusting mechanism 300 and the detecting mechanism 400, and the controller 500 can control the feeding mechanism 200 and the adjusting mechanism 300 to work.

The mounting block 100 may be an integral body, or may be directly mounted on the sewing machine according to actual requirements, so that the mounting block 100 is omitted.

Preferably, the feeding mechanism 200 includes a feeding motor 210 and a feeding rotating wheel 220, the feeding motor 210 is fixed to the mounting frame 100, the feeding motor 210 is electrically connected to the controller 500, the feeding rotating wheel 220 is connected to an output shaft of the feeding motor 210, and the feeding motor 210 can drive the feeding rotating wheel 220 to rotate.

The adjusting mechanism 300 includes an adjusting driving source 310, an adjusting roller 320 and a pressing assembly 330, the adjusting driving source 310 is fixed to the mounting frame 100, and the adjusting driving source 310 is preferably a motor, and may also be other common driving members with a rotating function, such as a rotary electromagnet, an internal combustion engine, etc. in the prior art. The adjusting roller 320 is connected with the output end of the adjusting driving source 310, the adjusting driving source 310 can drive the adjusting roller 320 to rotate, the pressing assembly 330 is arranged on the mounting frame 100, and the pressing assembly 330 can be close to and far away from the adjusting roller 320; the elastic band 600 can be threaded between the hold-down assembly 330 and the dancer roll 320. Preferably, the outer wall of the adjustment roller 320 is provided with a rubber layer 321 for increasing friction force, and the adjustment roller 320 itself may be integrally molded directly by a material having a large friction force.

Further, the pressing assembly 330 includes a pressing roller 331, a connecting member 332 and a first tension spring 333, the pressing roller 331 is rotatably connected to the connecting member 332, an outer wall of the pressing roller 331 can abut against an outer wall of the adjusting roller 320, the connecting member 332 is hinged to the mounting frame 100, one end of the first tension spring 333 is connected to the mounting frame 100, the other end of the first tension spring 333 is connected to the connecting member 332, and the first tension spring 333 can apply a pre-tightening force to the connecting member 332 so as to approach the adjusting roller 320, so that the pressing roller 331 presses the elastic band 600 against the outer wall of the adjusting roller 320.

Further, the connecting member 332 includes a first connecting rod 3321, a middle shaft 3322 and a second connecting rod 3323, the middle shaft 3322 is rotatably connected to the mounting frame 100, the end portions of the first connecting rod 3321 and the second connecting rod 3323 are both connected to the middle shaft 3322, the pressing roller 331 is connected to the first connecting rod 3321, and the second connecting rod 3323 is clamped or welded to one end of the first tension spring 333; the pressing assembly 330 further includes a handle 334 hinged to the mounting frame 100, a cam 3341 is inserted into the handle 334, the cam 3341 is located between the second connecting rod 3323 and the adjustment driving source 310, an outer ring of the cam 3341 can abut against an outer wall of the second connecting rod 3323, the cam 3341 has a relief surface 3342, and after the relief surface 3342 is parallel to the outer wall of the second connecting rod 3323, the pressing roller 331 abuts against an outer wall of the adjustment roller 320.

The first micro switch 110 is disposed on one side of the mounting frame 100 close to the second connecting rod 3323, the first micro switch 110 is electrically connected to the controller 500, and the second connecting rod 3323 can be close to and far from the first micro switch 110 and turn on or off the first micro switch 110.

Preferably, the detection mechanism 400 includes a first detection component 410, the first detection component 410 includes a fixing rod 411, a pin 412 and a gravity sensor 413, one end of the fixing rod 411 is hinged to the mounting frame 100, the other end of the fixing rod 411 is connected to the pin 412, the pin 412 is used for winding the elastic band 600, the gravity sensor 413 is disposed on one side of the fixing rod 411 close to the pin 412, and the gravity sensor 413 is electrically connected to the controller 500. Further, a first tensioning roller 4121 is rotatably arranged on the pin shaft 412, two limit blocks 4122 are connected to the first tensioning roller 4121 in a sliding manner, and the elastic band 600 passes through the two limit blocks 4122; the mounting frame 100 is further rotatably provided with a second tensioning roller 140 and a third tensioning roller 150, and the second tensioning roller 140 and the third tensioning roller 150 are parallel to the first tensioning roller 4121 and are used for winding the elastic band 600.

Further, the detection mechanism 400 further comprises a second detection assembly 420, the second detection assembly 420 comprises a connecting shaft 421, a detection rod 422 and a second microswitch 423, the connecting shaft 421 is rotatably connected with the mounting frame 100, one end of the detection rod 422 is connected with the connecting shaft 421, and the other end of the detection rod 422 is provided with a abdicating hole 4221 for the elastic band 600 to pass through; the mounting frame 100 is provided with a fixing plate 120, the second micro switch 423 is arranged on the fixing plate 120, the second micro switch 423 is electrically connected with the controller 500, one side of the connecting shaft 421, which is close to the second micro switch 423, is provided with a trigger rod 4211, and the trigger rod 4211 can be close to and far away from the second micro switch 423 and can open or close the second micro switch 423.

Further, the detection mechanism 400 further comprises a third detection assembly 430, the third detection assembly 430 comprises a rotating shaft 431, a gravity rod 432 and a third microswitch 433, the rotating shaft 431 is rotatably connected with the mounting frame 100, one end of the gravity rod 432 is connected with the rotating shaft 431, the other end of the gravity rod 432 is provided with a contact part 4321 which is in contact with the upper surface of the elastic band 600, and the contact part 4321 is positioned between the adjusting roller 320 and the pin shaft 412; the third microswitch 433 is fixed on the fixing plate 120, the third microswitch 433 is electrically connected with the controller 500, an extension rod 4311 is arranged on the rotating shaft 431, and the free end of the extension rod 4311 can be close to and far away from the third microswitch 433 and can open or close the third microswitch 433. Preferably, in order to ensure that the gravity rod 432 can normally sink, a second tension spring 4312 may be disposed on the rotation shaft 431, one end of the second tension spring 4312 is connected to the rotation shaft 431, and the other end of the second tension spring 4312 is connected to the fixed plate 120, so long as the gravity rod 432 can freely droop when not under the tension of the elastic band 600.

It should be noted that the first detecting element 410, the second detecting element 420, and the third detecting element 430 may be used together or partially in combination.

The mounting bracket 100 is provided with a shaping rod 130, the shaping rod 130 is positioned between the feeding mechanism 200 and the adjusting mechanism 300, and the shaping rod 130 is provided with a guide hole 131 for the elastic band 600 to pass through. Further, the shaping rod 130 may be provided in plurality at intervals.

The working principle of the elastic sewing machine is as follows:

the free end of the elastic band 600 bypasses the feeding rotating wheel 220, passes through the shaping rod 130, the detection rod 422, the pressing roller 331 and the adjusting roller 320, bypasses the gravity rod 432, the second tensioning roller 140, the first tensioning roller 4121 and the third tensioning roller 150, and finally feeds the sewing equipment.

When the elastic band 600 needs to be arranged between the pressing roller 331 and the adjusting roller 320, the handle 334 is swung, the handle 334 drives the cam 3341 to rotate, the outer ring of the cam 3341 slides along the outer ring of the second connecting rod 3323, after the abdicating surface 3342 is far away from the second connecting rod 3323, the first connecting rod 3321, the second connecting rod 3323 and the pressing roller 331 are all in a state of being far away from the adjusting roller 320, the second connecting rod 3323 is in contact with the first microswitch 110, the first microswitch 110 is switched on, the pressing roller 331 is far away from the adjusting roller 320, the elastic band 600 can be easily arranged between the pressing roller 331 and the adjusting roller 320, and the adjusting driving source 310 cannot work; after the elastic band 600 is installed, the handle 334 is reset, so that the receding surface 3342 on the cam 3341 is parallel to the second connecting rod 3323, the second connecting rod 3323 is pulled towards the adjusting roller 320 by the first tension spring 333, the pressing roller 331 presses the elastic band 600 on the rubber layer 321 outside the adjusting roller 320, meanwhile, the second connecting rod 3323 is separated from the first micro switch 110, so that the first micro switch 110 is closed, and the adjusting driving source 310 can work.

After the sewing equipment begins to sew the elastic band 600, the controller 500 controls the feeding motor 210 and the adjusting driving source 310 to work, so that the feeding rotating wheel 220 rotates and feeds the elastic band 600 to the adjusting roller 320; meanwhile, the adjusting roller 320 rotates, the rubber band 600 is clamped by the pressing roller 331 and the adjusting roller 320, the rotating adjusting roller 320 can drive the rubber band 600 to feed, the free end of the rubber band 600 is processed on the sewing equipment, the feeding speed of the adjusting roller 320 is lower than the processing speed of the sewing equipment, the rubber band 600 between the pressing roller 331 and the sewing equipment can generate tension, the tension can act on the gravity rod 432 and the tension roller 4121, the gravity rod 432 is lifted upwards, the tension roller 4121 and the pin shaft 412 sink downwards, the sunk pin shaft 412 is detected by the gravity sensor 413, and an electric signal is transmitted to the controller 500;

when the tension is small, the gravity rod 432 sinks, the gravity rod 432 drives the rotating shaft 431 and the extension rod 4311 to rotate, the rotating extension rod 4311 is in contact with the microswitch III 433, the microswitch III 433 is turned on, and the controller 500 represents that the tension is small after receiving a signal of turning on the microswitch III 433; in addition, when the tension is changed, the acting force of the tension on the tension roller 4121 is also changed, and after the gravity sensor 413 detects the change of the value, the controller 500 controls the adjustment driving source 310 to adjust the feeding speed of the adjustment roller 320, so that the tension is restored to the predetermined value. That is, the first detecting component 410 and the second detecting component 420 detect the tension of the elastic band 600 between the pressing roller 331 and the sewing device together, and after any one detecting component detects that the tension is changed, the controller 500 can adjust and adjust the rotating speed and the rotating direction of the driving source 310, so as to ensure that the tension is in a preset range.

After the tension between the feeding rotating wheel 220 and the adjusting roller 320 is increased, the part of the elastic band 600 can lift the detection rod 422 upwards, so that the detection rod 422 drives the connecting shaft 421 and the trigger rod 4211 to rotate synchronously, when the trigger rod 4211 rotates to the limit position, the trigger rod 4211 turns on the second micro switch 423, and after the controller 500 receives a signal that the second micro switch 423 is turned on, the controller starts to control the feeding motor 210 to increase the rotating speed, so that the feeding speed is ensured, the tension of the elastic band 600 between the feeding rotating wheel 220 and the adjusting roller 320 is reduced, when the tension is small, the detection rod 422 sinks downwards, and the feeding mechanism 200 starts to feed normally.

Under the fixed condition of sewing speed at sewing department, controller 500 control adjustment mechanism 300 is to the feed speed of rubber band 600, realizes the purpose to the control of rubber band 600 tension, and detection mechanism 400 then guarantees tensile stability, and when the rubber band 600 tension changes, controller 500 adjusts adjustment mechanism 300's feed speed thereupon, has avoided the tensile process of manual regulation rubber band 600, and the ordinary processing personnel's of being convenient for processing is applicable to large-scale production.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims

1. An elastic sewing machine, which is characterized in that: the device comprises an installation frame (100), a feeding mechanism (200), an adjusting mechanism (300), a detection mechanism (400) and a controller (500), wherein the feeding mechanism (200), the adjusting mechanism (300), the detection mechanism (400) and the controller (500) are arranged on the installation frame (100) at intervals;

the feeding mechanism (200) can convey the elastic band (600) to the adjusting mechanism (300);

the adjusting mechanism (300) can adjust the tension of the elastic band (600);

the detection mechanism (400) can detect the tension of the elastic band (600);

the controller (500) is electrically connected with the feeding mechanism (200), the adjusting mechanism (300) and the detecting mechanism (400), and the controller (500) can control the feeding mechanism (200) and the adjusting mechanism (300) to work.

2. An elastic sewing machine according to claim 1, characterised in that: feeding mechanism (200) include material loading motor (210) and material loading runner (220), material loading motor (210) with mounting bracket (100) are fixed, material loading motor (210) with controller (500) electricity is connected, material loading runner (220) with the output shaft of material loading motor (210), material loading motor (210) can drive material loading runner (220) rotate.

3. An elastic sewing machine according to any one of claims 1-2, characterized in that: the adjusting mechanism (300) comprises an adjusting driving source (310), an adjusting roller (320) and a pressing assembly (330), the adjusting driving source (310) is fixed with the mounting frame (100), the adjusting roller (320) is connected with the output end of the adjusting driving source (310), the adjusting driving source (310) can drive the adjusting roller (320) to rotate, the pressing assembly (330) is arranged on the mounting frame (100), and the pressing assembly (330) can be close to and far away from the adjusting roller (320); an elastic band (600) is located between the hold-down assembly (330) and the dancer roll (320).

4. An elastic sewing machine according to claim 3, characterised in that: the pressing assembly (330) comprises a pressing roller (331), a connecting piece (332) and a first tension spring (333), the pressing roller (331) is rotatably connected with the connecting piece (332), the outer wall of the pressing roller (331) can be attached to the outer wall of the adjusting roller (320), the connecting piece (332) is hinged to the mounting frame (100), one end of the first tension spring (333) is connected with the mounting frame (100), the other end of the first tension spring (333) is connected with the connecting piece (332), the first tension spring (333) can apply pre-tightening force close to the adjusting roller (320) to the connecting piece (332), and the pressing roller (331) presses the elastic band (600) to the outer wall of the adjusting roller (320).

5. An elastic sewing machine according to claim 4, characterised in that: the connecting piece (332) comprises a first connecting rod (3321), a middle shaft (3322) and a second connecting rod (3323), the middle shaft (3322) is rotatably connected with the mounting frame (100), the end parts of the first connecting rod (3321) and the second connecting rod (3323) are connected with the middle shaft (3322), the pressing roller (331) is connected with the first connecting rod (3321), and the second connecting rod (3323) is connected with one end of the first tension spring (333); compress tightly subassembly (330) still includes handle (334), handle (334) with mounting bracket (100) are articulated, be connected with cam (3341) on handle (334), cam (3341) are located two (3323) of connecting rod with adjust between the driving source (310), just the outer lane of cam (3341) can with the outer wall of two (3323) of connecting rod is pasted, cam (3341) have the face of stepping down (3342), the face of stepping down (3342) with the outer wall parallel back of two (3323) of connecting rod, compression roller (331) with the outer wall of adjusting roller (320) is pasted.

6. An elastic sewing machine according to claim 5, characterised in that: one side, close to the second connecting rod (3323), of the mounting frame (100) is provided with a first micro switch (110), the first micro switch (110) is electrically connected with the controller (500), and the second connecting rod (3323) can be close to and far away from the first micro switch (110) to enable the first micro switch (110) to be turned on or turned off.

7. An elastic sewing machine according to claim 3, characterised in that: detection mechanism (400) is including detection element (410), detection element (410) is including dead lever (411), round pin axle (412) and gravity inductor (413), the one end of dead lever (411) with mounting bracket (100) are articulated, the other end of dead lever (411) with round pin axle (412) are connected, round pin axle (412) supply rubber band (600) to coil, gravity inductor (413) set up in dead lever (411) are close to one side of round pin axle (412), just gravity inductor (413) with controller (500) electricity is connected.

8. An elastic sewing machine according to claim 7, characterised in that: the detection mechanism (400) further comprises a second detection assembly (420), the second detection assembly (420) comprises a connecting shaft (421), a detection rod (422) and a second microswitch (423), the connecting shaft (421) is rotatably connected with the mounting frame (100), one end of the detection rod (422) is connected with the connecting shaft (421), and the other end of the detection rod (422) is provided with a yielding hole (4221) for the rubber band (600) to pass through; be provided with fixed plate (120) on mounting bracket (100), micro-gap switch two (423) set up in on fixed plate (120), just micro-gap switch two (423) with controller (500) electricity is connected, connecting axle (421) are close to one side of micro-gap switch two (423) is provided with trigger lever (4211), trigger lever (4211) can be close to and keep away from micro-gap switch two (423).

9. An elastic sewing machine according to claim 8, characterised in that: the detection mechanism (400) further comprises a third detection assembly (430), the third detection assembly (430) comprises a rotating shaft (431), a gravity rod (432) and a third microswitch (433), the rotating shaft (431) is rotatably connected with the mounting frame (100), one end of the gravity rod (432) is connected with the rotating shaft (431), the other end of the gravity rod (432) is provided with a contact part (4321) which is in contact with the upper surface of an elastic band (600), and the contact part (4321) is located between the adjusting roller (320) and the pin shaft (412); the third microswitch (433) is fixed on the fixing plate (120), the third microswitch (433) is electrically connected with the controller (500), an extension rod (4311) is arranged on the rotating shaft (431), and the free end of the extension rod (4311) can be close to and far away from the third microswitch (433).

10. An elastic sewing machine according to claim 1, characterised in that: the mounting rack (100) is provided with a shaping rod (130), the shaping rod (130) is located between the feeding mechanism (200) and the adjusting mechanism (300), and the shaping rod (130) is provided with a guide hole (131) for an elastic band (600) to pass through.