CN207295150U - The bottom line arrangement for detecting of sewing machine - Google Patents

Abstract

It the utility model is related to a kind of bottom line arrangement for detecting of sewing machine, it is installed on the base of sewing machine, and mainly by hooking component, big kettle seat, peg or spindle and optical sensor are formed, optical sensor has transmitter unit and receiving unit, and transmitter unit senses light towards the bottom line projection one for being wound in peg or spindle, so that bottom line reflection sensing light forms a reflection light for being sent to receiving unit, and then receiving unit calculates the distance of sensing light according to the injection angle of reflection light, when the distance for sensing light, which is more than, is stored in the default distance of light sensation emitter in one, receiving unit produces signal, operating personnel are enabled to replace peg or spindle at suitable time point, or peg or spindle is replaced by the automatic sewing machine that computer controls automatically.

Description

The bottom line arrangement for detecting of sewing machine

Technical field

The utility model is related to a kind of bottom line arrangement for detecting for being assembled in sewing machine, it is particularly a kind of using light reflection come Detect the bottom line arrangement for detecting whether bottom line surplus is less than default value.

Background technology

When sewing machine carries out sewing operation, the bottom of base is mainly installed on by a upper thread for being installed on eedle and one Several layers of sewing thing be combined with each other by line, wherein, since the length limited of bottom line is in the accommodating amount of peg or spindle, also, peg or spindle is accommodating Amount further depends on different sewing operations, and therefore, bottom line uses up the action of replacement as the operation of routine, however, In order to avoid bottom line exhausts and produces undesirable sewed product, or early replace bottom line very much and cause bottom line to waste and reduce sewing The frame of machine moves rate, and then how accurately to predict or detect the surplus of bottom line, and carries out at suitable time point bottom line and change the outfit work Industry, it has also become improve the principal element of sewing machine production efficiency, thereby, it is necessary to operation is reminded when bottom line is left length-specific Personnel, or produce signal order and allow machine to replace peg or spindle automatically.

It is existing a kind of on the market at present to be used for whether detecting bottom line in order to which point replaces bottom line between achieving the purpose that in due course The existing bobbin thread detection device 10 that will be exhausted, please refers to Fig.1 shown in A, and the existing bobbin thread detection device 10 has an air pressure Cylinder 11, a box body 12 and a test pin 13, the pneumatic cylinder 11 pass through a measure block 14 inside the box body 12 And the test pin 13 is connected to, and the box body 12 is internally provided with one positioned at the contact switch for measuring 14 side of block 15, wherein, the contact switch 15 is fixedly connected on an adjustment part 16 for being equipped with a slot hole 161, and the length of the adjustment part 16 Hole 161 is subject to a bolt 17 and is movably connected on the box body 12, and thereby, the contact switch 15 can pass through the adjustment part 16 Can be selectively close to or away from the pneumatic cylinder 11, as shown in the figure, the measure block 14 is in close to the contact switch 15 Surface formed an inclined plane 141.

Please refer to Fig.1 shown in B, when sewing machine stops carrying out sewing operation, the pneumatic cylinder 11 drives the measure block 14 move inside the box body 12 so that and the peg or spindle 18 that the test pin 13 is assembled in sewing machine body towards one moves, into And make it that the test pin 13 is contacted with a bottom line 19 for being wound in the peg or spindle 18, when the test pin 13 contacts at the bottom During line 19, the inclined plane 141 of the measure block 14 can press on the contact switch 15, although the contact switch 15 is by institute Inclined plane 141 is stated to press, but the contact switch 15 can be not yet changed into on-state by off-state, so that it is described existing Bobbin thread detection device 10 will not produce any signal, represent that the surplus of the bottom line 19 is also sufficient, and the subsequent pneumatic cylinder 11 returns The state of script is back to, allows the test pin 13 to be located away from the bottom line 19, sewing function is continued sewing operation.

Please refer to Fig.1 shown in C, when the bottom line 19 will exhaust, the test pin 13 is contacted with the bottom line 19, makes The contact switch 15 can be pressed on by obtaining the inclined plane 141 of the measure block 14, and allow the contact switch 15 by disconnection shape State is changed into on-state, and then the existing bobbin thread detection device 10 can produce and remind operating personnel to replace the peg or spindle 18 Signal, thereby, operating personnel can replace peg or spindle 18 before the bottom line 19 exhausts.

However, because the detection mode of the existing bobbin thread detection device 10 must directly contact the bottom line 19, into And cause the overlong time needed for detection process, and cause that the time that sewing machine stops sewing operation can be elongated, it is opposite to improve Production efficiency.

Utility model content

The main purpose of the utility model is that using reflective optical sensor towards peg or spindle throw light, and work as bottom line When reflecting light back into optical sensor, optical sensor can differentiate whether distance is more than memory according to the light angle reflected Pre-determined distance, when the light distance reflected is more than pre-determined distance, optical sensor can produce signal so that operating personnel can To learn that bottom line will exhaust at once, and then peg or spindle, or energy can be replaced in reasonable time point before bottom line exhausts Producing signal allows the automatic sewing machine controlled for computer to replace peg or spindle automatically.

To realize object defined above, the utility model provides a kind of bottom line arrangement for detecting of sewing machine, for being assembled in a sewing Machine body, it is characterised in that including：

One big kettle seat, is fixed on the sewing machine body, and opens up to form one first kettle block hole with a first direction, and The second direction that the big kettle seat is also different from the first direction with a direction opens up and to form one and lead to positioned at the first kettle seat Second kettle block hole of hole side；

One hooking component, has a projection passage for connecting the first kettle block hole and the second kettle block hole at the same time, and It is connected to a lower axle for being arranged on the sewing machine body so that the hooking component can be in the big kettle seat by the lower axle Portion is rotated；

One peg or spindle, is assembled in the hooking component, and has a mandrel that a bottom line can be allowed to wind；And

One optical sensor, has a transmitter unit and a receiving unit, and the transmitter unit is projected towards the mandrel One is formed through the first kettle block hole and the sensing light for projecting passage so that the bottom line reflection sensing light shape Into one through the second kettle block hole and the reflection light for projecting passage, and the receiving unit receives the reflection light, And can be according to the distance that light is sensed described in the injection angle calculation of the reflection light.

The hooking component has the shuttle of a bobbin case for housing the peg or spindle and an assembling bobbin case, the bobbin case Equipped with a bobbin case through hole, and the shuttle is equipped with a shuttle through hole that the projection passage is collectively forming with the bobbin case through hole.

The first direction intersects at the lower axle with second direction.

Mandrel projection the utility model has the advantage of transmitter unit towards the peg or spindle of optical sensor senses light so that Sensing light is when being projected to bottom line, and bottom line can reflect sensing light and be projected to the reflection light of receiving unit to be formed, in this way, working as When receiving unit receives reflection light, receiving unit can judge that the distance of sensing light is according to the injection angle of reflection light It is no to be more than pre-determined distance, and then in the case where the distance of sensing light is more than pre-determined distance, receiving unit will produce signal, Allow operating personnel to learn that bottom line exhausts soon at once, and then peg or spindle can be replaced in due course before bottom line exhausts.

Brief description of the drawings

Figure 1A is the schematic diagram of existing bobbin thread detection device；

Figure 1B contacts at bottom line for test pin and represents that bottom line also has the schematic diagram of surplus；

Fig. 1 C contact at the schematic diagram that bottom line represents that bottom line will exhaust for test pin；

Fig. 2 is that the bottom line arrangement for detecting of sewing machine of the present invention is assembled in the schematic diagram of base；

Fig. 3 is that the bottom line arrangement for detecting of sewing machine of the present invention is assembled in the exploded view of base；

Fig. 4 is the schematic diagram of the big kettle seat of the present invention；

Fig. 5 is the schematic diagram of hooking component of the present invention；

Fig. 6 is the schematic diagram that sensing light distance is less than pre-determined distance；

Fig. 7 is the schematic diagram that sensing light distance is more than pre-determined distance.

Description of reference numerals：The existing bobbin thread detection devices of 10-；11- pneumatic cylinders；12- box bodys；13- test pins；14- is measured Block；141- inclined planes；15- contact switches；16- adjustment parts；161- slot holes；17- bolts；18- peg or spindles；19- bottom lines；20- bottoms Line arrangement for detecting；The big kettle holder assemblies of 21-；The big kettle seats of 211-；211a- kettle seat openings；211b- installation spaces；211c- the first kettle seats Through hole；211d- the second kettle block holes；212- kettle covers；22- hooking components；221- shuttles；221a- shuttle through holes；222- bobbin cases； 222a- bobbin case through holes；223- shuttle actuators；224- projects passage；23- peg or spindles；231- mandrels；24- optical sensors；241- is sent out Penetrate unit；242- receiving units；243- input units；30- sewing machine bodies；31- bases；32- lower axles；40- bottom lines；D1- One direction；D2- second directions；L1- senses light；L2- reflection lights.

Embodiment

The utility model is further described with reference to specific embodiments and the drawings, the advantages of the utility model and feature Will be with description and it is apparent.

Referring to shown in Fig. 2, the bottom line arrangement for detecting 20 of the utility model sewing machine is used with unification sewing machine body 30, The sewing machine body 30 has a base 31 and a lower axle 32 that can be rotated inside base 31, refers to Fig. 3 institutes Show, the bottom line arrangement for detecting 20 is mainly by a big kettle holder assembly 21, a hooking component 22, a peg or spindle 23 and an optical sensor 24 are formed, and big kettle holder assembly 21 has a big kettle seat 211 for being fixedly connected on base 31, and big kettle seat 211 has an opening side It is recessed to the kettle seat opening 211a and one parallel to lower axle 32 by kettle seat opening 211a and forms one inside big kettle seat 211 Installation space 211b, wherein, kettle seat opening 211a assembles a kettle cover 212, and kettle cover 212 covers the partial zones of kettle seat opening 211a Domain.

Refer to shown in Fig. 4, the first direction D1 that the installation space 211b of big kettle seat 211 intersects at lower axle 32 along one is opened If forming one first kettle block hole 211c, and open up with a second direction D2 for intersecting at lower axle 32 to form one second kettle seat and lead to again Hole 211d, wherein, both first direction D1 and second direction D2 intersect and not parallel, wherein, big kettle seat 211 has the first kettle seat Through hole 211c and the second kettle block hole 211d only facilitate purposes of discussion, can also lead to the first kettle block hole 211c and the second kettle seat The borehole enlargement of hole 211d so that the first kettle block hole 211c is interconnected with the second kettle block hole 211d, and allows big kettle seat 211 Form single kettle block hole.

Referring to again shown in Fig. 3, hooking component 22 is located at the installation space 211b of big kettle seat 211, and mainly by a shuttle 221st, a bobbin case 222 and a shuttle actuator 223 are formed, and shuttle 221 is connected with each other with bobbin case 222, and shuttle actuator 223 are assembled in lower axle 32 so that shuttle actuator 223 can drive shuttle 22 to be carried out inside installation space 211b by lower axle 32 Rotate, wherein, bobbin case 222 is subject to the support of kettle cover 212 without changing the position relationship between big kettle seat 211, in this reality Apply in example, hooking component 22 is a kind of shuttle component of half revolution, however, hooking component 22 is set to the only convenient explanation of shuttle component It is used, that is, hooking component 22 can be set to a kind of rotating shuttle assembly of full circle swinging.

Refer to shown in Fig. 5, the shuttle 221 of hooking component 22 is in corresponding to first, second kettle block hole 211c, 211d's Subrange opens up to form a shuttle through hole 221a, and the bobbin case 222 of hooking component 22 opens up and to form one and be communicated in shuttle through hole The bobbin case through hole 222a of 221a, wherein, when pendulum contracting 221 is by putting contracting actuator 223 to turn to a certain position, shuttle through hole Both 221a and bobbin case through hole 222a are interconnected and form projection passage 224, also, project channel 224 and be located at hooking component 22 close to one end of base 31, and is communicated in the first kettle block hole 211c and the second kettle block hole 211d at the same time.

Referring to again shown in Fig. 3, peg or spindle 23 is located inside bobbin case 222, and is assembled in the shuttle 221 of hooking component 22, its In, peg or spindle 23 has a mandrel 231, in addition, optical sensor 24 has a transmitter unit 241 and a receiving unit 242, and can Be fixedly connected on according to use demand sewing machine body 30 base 31 or one be installed on 31 work top of base (figure not Show) lower section.

Refer to shown in Fig. 6, the mandrel 231 of peg or spindle 23 winds a bottom line 40, and operating personnel are formed at light by one and pass The input of input unit 243 one on 24 surface of sensor is stored in the pre-determined distance in optical sensor 24, next, optical sensor 24 No matter transmitter unit 241 is when shuttle 221 is rotated by pendulum contracting actuator 223 or hooking component 22 shuts down, all It can be projected towards mandrel 231 and form one through the first kettle block hole 211c and sensing light L1 for projecting passage 224 so that bottom line 40 reflections sense light L1 and form one through the second kettle block hole 211d with projecting the reflection light L2 of passage 224, and reflect Light L2 is projeced into the receiving unit 242 of optical sensor 24, when receiving unit 242 receives reflection light L2, receiving unit 242 The angle calculation transmitter unit 241 in receiving unit 242 can be injected according to reflection light L2 to the distance of pip, and then can be obtained Know that the distance of sensing light L1 is less than default distance so that receiving unit 242 will not send any message, cause to continue Sewing operation.

As shown in the figure, the pre-determined distance of operating personnel's input is 58 centimetres, and reflection light L2 is injected in receiving unit 242 Angle be 21.14 degree, and then it is 54 centimetres that the receiving unit 242 of optical sensor 24, which calculates the distance of sensing light L1, by In 58 centimetres of 54 centimetres of distances for being more than sensing light L1 of pre-determined distance, and then receiving unit 242 would not produce any reaction.

Refer to shown in Fig. 7, when bottom line 40 gradually exhausts, reflection light L2 is injected in the angle meeting of receiving unit 242 Be gradually reduced, so when optical sensor 24 receiving unit 242 according to reflection light L2 inject in receiving unit 242 angle and When the distance of the sensing light L1 calculated is more than default distance, receiving unit 242 will produce signal so that operating personnel can To learn that bottom line 40 will exhaust at once, and then peg or spindle 23 can be replaced in due course before bottom line 40 exhausts.

As shown in the figure, bottom line 40 will exhaust, reflection light L2 is caused to inject the angle in receiving unit 242 by 21.14 Degree changes into 19.64 degree, and then it is 59 centimetres that the receiving unit 242 of optical sensor 24, which calculates the distance of sensing light L1, by It is less than 59 centimetres of the distances of sensing light L1 in 58 centimetres of pre-determined distance, and then receiving unit 242 produces signal, allows operating personnel Peg or spindle 23 can be replaced as early as possible.

It is described above to be merely exemplary for the utility model, and nonrestrictive, those of ordinary skill in the art Understand, in the case where not departing from the spirit and scope that claim is limited, can many modifications may be made, change or it is equivalent, but Fall within the scope of protection of the utility model.

Claims (3)

1. A kind of 1. bottom line arrangement for detecting of sewing machine, for being assembled in a sewing machine body, it is characterised in that including：

   One big kettle seat, is fixed on the sewing machine body, and opens up to form one first kettle block hole with a first direction, and described The second direction that big kettle seat is also different from the first direction with a direction opens up and to form one and be located at the first kettle block hole one Second kettle block hole of side；

   One hooking component, has one to connect the projection passage of the first kettle block hole and the second kettle block hole at the same time, and connects In one be arranged on the sewing machine body lower axle so that the hooking component by the lower axle can inside the big kettle seat into Row rotates；

   One peg or spindle, is assembled in the hooking component, and has a mandrel that a bottom line can be allowed to wind；And

   One optical sensor, has a transmitter unit and a receiving unit, and the transmitter unit projects to be formed towards the mandrel One passes through the sensing light of the first kettle block hole and projection passage so that the bottom line reflection sensing light formation one Through the reflection light of the second kettle block hole and projection passage, and the receiving unit receives the reflection light, and energy Enough distances according to sensing light described in the injection angle calculation of the reflection light.
2. 2. the bottom line arrangement for detecting of sewing machine according to claim 1, it is characterised in that：The hooking component has one to hold The bobbin case of the peg or spindle and the shuttle of an assembling bobbin case are put, the bobbin case is equipped with a bobbin case through hole, and the shuttle is set There is a shuttle through hole that the projection passage is collectively forming with the bobbin case through hole.
3. 3. the bottom line arrangement for detecting of sewing machine according to claim 1, it is characterised in that：The first direction and second party To intersecting at the lower axle.