TWI649541B - Height detection device for assembly machine and assembly machine - Google Patents

Abstract

The present invention provides a sensor that is not prone to failure even after long-term operation. And an assembling machine for an assembly machine that can accurately detect the height of a component. The height detecting device for an assembly machine includes: a base; a sliding member; a supporting member for supporting the subject; a first detecting member provided corresponding to an upper limit position of the subject; and a lower limit position corresponding to the height of the subject Corresponding second detection elements; a first sensor that detects the height of the first detection element; and a second sensor that detects the height of the second detection element. When the slider descends and comes into contact with the object, the upper limit position of the object is detected by the first sensor and the first detection element, and the lower limit position of the object is detected by the second sensor and the second detection element. .

Description

Height detection device for assembly machine and assembly machine

The present invention relates to a height detection device for an assembly machine and an assembly machine.

In an assembly machine for automatically assembling a zipper component, it is possible to detect whether the height of the component becomes a predetermined height before and / or after the assembly of the zipper component. For example, Patent Documents 1 and 2 describe a detection device that detects whether a component height is within an allowable range using a light sensor.

As shown in FIG. 8, the detection devices of Patent Documents 1 and 2 include a detection frame 311 that moves up and down by a drive mechanism (not shown). A photo sensor 313 formed in a U shape and having the first optical fiber 315 and the second optical fiber 317 facing each other is fixed to the upper portion of the detection frame 311. In addition, the detection frame 311 is provided with a slider 321 that can be urged downward by the tension spring 319 so as to be slidable in the vertical direction. The micro adjustment plate 323 fixed on the upper portion of the slider 321 has a slit-shaped light-transmitting groove 325. The light transmission groove 325 is disposed between the first optical fiber 315 and the second optical fiber 317. The height of the component 331 is detected based on whether the light from the first optical fiber 315 can pass through the light-transmitting groove 325 provided in the micro adjustment plate 323 and is received by the second optical fiber 317.

[Prior Art Literature]

[Patent Literature]

Patent Document 1: Chinese Utility Model Bulletin No. 203274771

Patent Document 2: China Utility Model Bulletin No. 203489841

However, in the detection device 300 having the above-mentioned configuration, the light sensor 313 to which the first optical fiber 315 and the second optical fiber 317 are connected is fixed to a detection frame 311 that moves up and down. Therefore, each of the optical fibers 315 and 317 also moves up and down together with the detection frame 311. If the optical fibers 315 and 317 are damaged for a long period of time, the optical fibers 315 and 317 may be damaged due to disconnection, and the component height may not be detected accurately. In particular, a stress caused by mechanical vibration and / or impact is easily applied to a connection portion between the light sensor 313 and the first optical fiber 315 and the second optical fiber 317. In addition, when the light-receiving area of the light sensor is adjusted by the light-transmitting groove 325 having a narrow slit width, since the light emitted from the optical fiber 315 is a broad light distribution, it is difficult to accurately adjust and adjust Homework requires a lot of work hours.

The present invention has been made in view of the above-mentioned matters, and an object thereof is to provide a height detection device for an assembly machine and an assembly machine that are capable of accurately detecting the height of parts even if the sensor is not prone to malfunction even after long-term operation.

The present invention is composed of the following structures.

(1) A height detecting device for an assembling machine, which is provided in an assembling machine for assembling a zipper member, and detects the height of an object to be inspected including at least a part of the zipper member, comprising: A base member; a sliding member that moves up and down relative to the base member; a support member that supports the subject to be contacted with the sliding member at the lower end of the lifting stroke of the sliding member; a first detecting member and a second detecting member The detection members are respectively extended from the sliding members, the first detection member is provided corresponding to the upper limit position of the height of the object, and the second detection member is provided corresponding to the lower limit position of the height of the object; And the first sensor and the second sensor are respectively fixed to the abutment, the first sensor detects the height of the first detection element, and the second sensor detects the height of the second detection element When the sliding member is lowered and comes into contact with the subject, the upper limit position of the subject is detected by the first sensor and the first detection element, and the second sensor and the first sensor are detected by the second sensor and the first sensor. 2 detection means for detecting the lower limit position of the object to be detected.

(2) An assembling machine including the above-mentioned height detecting device for an assembling machine.

According to the present invention, even if the sensor is operated for a long period of time, the sensor is less prone to malfunction, and the height of the subject can be accurately detected.

11‧‧‧ pull

11a‧‧‧claw

13‧‧‧ abutment

15‧‧‧Turntable

17‧‧‧ Lifting block

19‧‧‧ Workpiece fixing unit

21‧‧‧ holding section

23‧‧‧Frame Parts

23a‧‧‧lower

23b‧‧‧upper surface

25‧‧‧ Slider

25a‧‧‧upper

25b‧‧‧Step Department

27‧‧‧touching part

27a‧‧‧ touch face

29‧‧‧ arm

31‧‧‧arm

33‧‧‧The first test piece

33a‧‧‧bottom

35‧‧‧The second test piece

35a‧‧‧ bottom

37‧‧‧Groove

39‧‧‧ stop screw

41‧‧‧ sensor support

41a‧‧‧Middle

41b‧‧‧base end

41c‧‧‧Top

43‧‧‧1st sensor

45‧‧‧ 2nd sensor

47‧‧‧light projector

49‧‧‧ Receiver

51‧‧‧detection circuit

55‧‧‧ Bolt

57‧‧‧ sliding groove

59‧‧‧ Bolt

61‧‧‧through hole

63‧‧‧tension spring

71‧‧‧ plunger

100‧‧‧ height detection device

200‧‧‧Assembly machine

300‧‧‧testing device

311‧‧‧detection rack

313‧‧‧light sensor

315‧‧‧First fiber

317‧‧‧Second Optical Fiber

319‧‧‧tension spring

321‧‧‧ slider

323‧‧‧Micro adjustment plate

325‧‧‧light trough

331‧‧‧parts

Ax‧‧‧ axis

H ₀ ‧‧‧ height

H1‧‧‧ height

H2‧‧‧ height

HS‧‧‧ Height Detection Station

LB1‧‧‧Light

LB2‧‧‧Light

PA‧‧‧ Direction

PB‧‧‧ direction

PC‧‧‧ Direction

ST‧‧‧Supporting parts

V‧‧‧ direction

FIG. 1 is a diagram for explaining an embodiment of the present invention, and is an external perspective view of an assembly machine having a height detection device.

FIG. 2 is a vertical cross-sectional view of a height detection device for an assembly machine shown in FIG. 1.

FIG. 3 is a view in the V direction of the height detection device for the assembling machine shown in FIG. 2.

FIG. 4 is a schematic configuration diagram of a first sensor and a second sensor.

Fig. 5 is a front view of a pull tab at a detected height.

6 (A) and 6 (B) are explanatory diagrams showing the steps of detecting the height of the slider by the height detection device in stages.

FIGS. 7 (A) to 7 (C) are diagrams schematically illustrating the principle of detecting the height of the slider by the first detector and the first sensor, and the second detector and the second sensor. Illustration.

FIG. 8 is a perspective view of a detection device in a conventional assembly machine.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an external perspective view of an assembly machine 200 including a height detection device 100.

The assembling machine 200 is, for example, an apparatus for assembling a slider 11 (see FIG. 5), which is one of the fastener components, to be attached to a slider body (not shown) of a slider for a slide fastener. The assembling machine 200 is not limited to a slider assembling device for assembling the slider 11, but may be a slider assembling machine for assembling a slider for a slide fastener.

The assembling machine 200 includes a base 13, a ring-shaped rotary table 15, and a lifting block 17. The turntable 15 is supported on the base in a freely rotatable manner with the axis Ax as the center. On stage 13. The elevating block 17 is arranged above the turntable 15. Driven along the axis Ax in the directions of PB and PC in the figure.

A plurality of work fixing units 19 are arranged on the upper surface of the turntable 15 at regular intervals in the circumferential direction. Each work fixing unit 19 has a pair of holding portions 21, and the pull tab 11 is held by the pair of holding portions 21. The turntable 15 is intermittently driven by a turntable drive unit (not shown) in the circumferential direction around the axis Ax as the center of the arrangement of the workpiece fixing unit 19. The work fixing unit 19 is not limited to having a pair of gripping portions 21 penetrating along the axis Ax direction and holding the zipper member, and the zipper member may be inserted therein like a groove. That is, the above-mentioned work fixing unit 19 holds the pull tab 11, and the turntable 15 conveys the held pull tab 11. These work fixing units 19 and the turntable 15 function as a support member ST that supports and transports the pull tab 11 to a desired position.

A plurality of work stations for performing various operations such as detection and processing on the grip tab 11 are arranged on a part of the circumferential position of the turntable 15 of the above-mentioned structure where the work fixing unit 19 stops. In the example shown in the figure, a height detection station HS that detects the height of the grip 11 is disposed at a circumferential position of one of the plurality of workpiece fixing units 19. A height detection device 100 that detects the height of the pull-tab 11 is disposed on the detection station HS.

FIG. 2 is a side view of the main part showing the structure of the height detection device 100 at the height detection station, and FIG. 3 is a view in the V direction of the height detection device shown in FIG. 2.

As shown in FIGS. 1 to 3, a frame member is fixed to the side of the lifting block 17. twenty three. A slider (sliding member) 25 is supported on the frame member 23 so as to be vertically movable. A contact portion 27 that is in contact with the pull tab 11 when the slider 25 is lowered is integrally formed below the slider 25. A pair of arms 29 and 31 are provided on the side of the contact portion 27 in parallel to the radially outer side of the turntable 15. The pair of arms 29 and 31 are arranged side by side with a predetermined interval from each other in the horizontal direction, and the first detection member 33 and the first二 测 件 35。 Two detection pieces 35.

The first detection member 33 and the second detection member 35 are rod-shaped members, and are rectangular parallelepiped elongated plates in the illustrated example. The first detecting element 33 is fixed to one arm 29 so that the longitudinal direction is vertical, and the second detecting element 35 is fixed to the other arm 31 so that the longitudinal direction is vertical. In addition, the first detection piece 33 and the second detection piece 35 are finely fixed in the vertical direction by the stopper screws 39 in a state of being inserted into the grooves 37 formed in the front ends of the arms 29 and 31.

On the other hand, a sensor support member 41 is erected on the base 13. The sensor support member 41 has a substantially S-shaped cross section, and has a flat surface in which the intermediate portion 41 a extends in the vertical direction, and the base end portion 41 b and the distal end portion 41 c are curved in the horizontal direction. The base end portion 41 b is fixed to the base table 13, and the front end portion 41 c is fixed to the first sensor 43 and the second sensor 45.

The first sensor 43 and the second sensor 45 are miniature light sensors that are light-transmitting sensors. An example of the configuration is shown in FIG. 4. The light-transmitting sensor shown in the figure has the light projector 47 and the light receiver 49 aligned in the optical axis, and the light from the light projector 47 is detected by the light receiver 49 through a built-in detection circuit 51. In the example shown, it is a slot-type sensor element, but the light projector 47 and the light receiver 49 may be separated. Other types of sensor elements.

As shown in FIG. 3, the first sensor 43 is inserted into the first detection element 33 as a light shielding member in a light detection area between the light projector 47 and the light receiver 49. Similarly, the second sensor 45 is inserted into the second detection element 35 as a light shielding member in a light detection area between the light projector 47 and the light receiver 49.

The first sensor 43 detects the height of the first detection element 33, and the second sensor 45 detects the height of the second detection element 35. Here, the “height” is described in this specification as the height from the base 13, but the reference object of the height is not limited to the base 13 and may be a height relative to other components.

The first detection member 33 is provided so that the height H1 of the lower end 33 a from the base 13 corresponds to the lower limit position of the height of the pull tab 11. The second detection element 35 is provided so that the height H2 (H1 <H2) of the lower end 35a from the base 13 corresponds to the upper limit position of the height of the pull tab 11. In addition, the pull-tab 11 is held at a predetermined height at a front stage (not shown). Therefore, if the pull-tab 11 is a good product, the height of the top of the pull-tab 11 will become a predetermined height. The predetermined height as used herein refers to the height between the upper limit position and the lower limit position.

The first sensor 43 has a function of detecting whether or not the height of the pull-tab 11 supported by the work fixing unit 19 is positioned higher than a predetermined lower limit position. The second sensor 45 has a function of detecting whether the height of the pull-tab 11 is lower than a predetermined upper limit position.

Here, the structures of the frame member 23 and the slider 25 will be described in more detail.

The frame member 23 is fixed to the lifting block 17 by a bolt 55. In frame parts On 23, a rectangular sliding groove 57 is formed along the vertical direction (see FIG. 2). A slider 25 is slidably supported in the sliding groove 57 in the vertical direction.

A spring mounting bolt 59 is provided in each of the lower portion 23a of the frame member 23 and the upper portion 25a of the slider 25 extending from the slide groove 57. The frame member 23 is formed with a through hole 61 penetrating in the vertical direction, and a tension spring 63 suspended on a pair of spring mounting bolts 59 is housed in the through hole 61. The tension spring 63 biases the slider 25 downward with respect to the frame member 23. Accordingly, the slider 25 is supported by the frame member 23 in a state where the slider 25 is always urged downward.

The slider 25 has a stepped portion 25 b formed under the spring mounting bolt 59. The stepped portion 25 b is in contact with the upper surface 23 b of the frame member 23 to prevent the slider 25 from falling out of the frame member 23. 1 to 3 show a state in which the tension spring 63 is extended and the stepped portion 25b is lifted from the upper surface 23b.

In addition, the contact portion 27 (see FIG. 3) of the slider 25 is configured to abut the top of the pull-tab 11 (shown by a broken line in FIG. 3) supported on the workpiece fixing unit 19 and the contact surface 27 a which is the lower surface thereof. That is, the pull-tab 11 is supported by the workpiece fixing unit 19 so as to abut the slider 25 at the lower end of the lift stroke of the slider 25.

FIG. 5 is a front view of the pull tab 11 as an example.

The pull tab 11 is not limited to the shape illustrated in the figure, and a pair of claw portions 11 a are formed at one end in the longitudinal direction. The pair of claw portions 11 a is formed into a ring shape by being pressed and riveted from above in the figure, and a decorative ring or the like (not shown) is attached to the ring-shaped claw portion 11 a. Therefore, in the assembly machine 200, it is necessary to detect in advance whether the pull-tab 11 is supported by the workpiece fixing unit 19 (refer to FIG. 1) or to detect the height of the pull-tab 11. So in Figure 1 In the illustrated assembly machine 200 of the present configuration, the height of the pull tab 11 supported by the work fixing unit 19 is detected by the height detection device 100 of the height detection station HS.

The assembling machine 200 including the above-mentioned height detection device 100 controls the operation of each section in an integrated manner based on instructions from a control unit (not shown).

Next, a height detection procedure of the height detection device 100 for the assembling machine 200 will be described.

First, the lifting block 17 shown in FIG. 1 is continuously driven by a plunger 71 arranged at the center of the turntable 15. In addition, the turntable 15 is intermittently driven in the circumferential direction in synchronization with the lifting operation of the lifting block 17. In other words, the turntable 15 stops the work fixing unit 19 at a position opposite to the height detection device 100, and in this state, the lifting block 17 is lowered and raised. Then, the turntable 15 is intermittently driven again at the arrangement pitch of the work fixing unit 19. By repeating this operation, at the opposite position of the height detection device 100, the workpiece fixing unit 19 is sequentially stopped, thereby continuously detecting the height of the pull tab 11 held by the holding portion 21.

Next, the height detection procedure of one pull-tab 11 is demonstrated.

6 (A) and 6 (B) are explanatory diagrams showing the steps of detecting the height of the pull-tab 11 by the height detection device 100 in stages.

First, as shown in FIG. 6 (A), a pull-tab 11 (shown by a broken line in the figure) supported by the workpiece fixing unit 19 (see FIG. 1) is disposed at a position opposite to the height detection device 100. The slider 25 at this time is supported at the lowermost position in the vertical movable range with respect to the frame member 23.

When the frame member 23 passes the lifting block 17 (refer to FIG. 2) from this state, When descending by the lifting operation, as shown in FIG. 6 (B), the contact portion 27 of the slider 25 abuts on the top of the pull-tab 11 supported by the work fixing unit 19. The first and second detectors 33 and 35 that move up and down integrally with the slider 25 are inserted into the light detection areas of the first sensor 43 and the second sensor 45.

Then, when the frame member 23 is lowered further, the frame member 23 and the slider 25 are relatively moved in a state where the contact portion 27 of the slider 25 abuts on the pull tab 11 and stops. The frame member 23 is lowered to the lowest position within the vertical movable range of the lifting block 17 while extending the tension spring 63.

At this time, the slider 25 is maintained in a state where the contact portion 27 is in contact with the top of the slider 11, and the height of the slider 11 is detected by the first sensor 43 and the second sensor 45 in this state.

FIGS. 7 (A) to 7 (C) are schematic views showing the height detection of the pull tab 11 based on the first detection element 33 and the first sensor 43, and the second detection element 35 and the second sensor 45. An illustration of the principle.

As described above, the first detection member 33 is provided corresponding to the upper limit position of the height of the pull-tab 11. In more detail, when the contact surface 27a of the slider 25 is in contact with the top of the pull-tab 11, the height of the contact surface 27a is determined. Based on the height of the contact surface 27a, the height of the lower end 33a of the first detection element 33 is determined. The height of the lower end 33a of the first detection element 33 is adjusted in advance so that the height H ₀ of the top of the pull-tab 11 shown in FIG. 3 is the upper limit position of the allowable height. That is, the lower end 33a of the first detection element 33 is set to a height that becomes a light-shielding start end, and at this light-shielding start end, light LB1 from the light projector 47 of the first sensor 43 toward the light receiver 49 is blocked. That is, the higher the upper limit position where the first detection member 33 at a height H ₀ at the top of the pull tab 11 than the predetermined light LB1 transmission, the height H ₀ at the top tab 11 is lower than a predetermined upper limit position where Cover the light LB1.

The second detection element 35 is provided corresponding to the lower limit position of the height of the pull-tab 11. More specifically, the height of the lower end 35a of the second detection member 35 is adjusted in advance so that the height H ₀ of the top of the pull-tab 11 is the lower limit position of the allowable height. That is, the lower end 35a of the second detection element 35 is set to a height that becomes the light-blocking start end, and at the light-blocking start end, light LB2 from the light projector 47 of the second sensor 45 toward the light receiver 49 is blocked. That is, when the second detecting member 35 light LB2 transmission at a height H ₀ at the top of the pull tab 11 is higher than a predetermined lower limit position, the height H ₀ at the top tab 11 is lower than a predetermined lower limit position where Cover the light LB2.

Therefore, when the height H ₀ of the top of the pull tab 11 is between a predetermined upper limit position and a lower limit position, as shown in FIG. 7 (A), the light LB1 of the first sensor 43 is in a light-shielded state. The light LB2 of the two sensors 45 is transmitted.

In addition, when the height H ₀ of the top of the pull-tab 11 is higher than a predetermined upper limit position, as shown in FIG. 7 (B), the light LB1 of the first sensor 43 and the light LB2 of the second sensor 45 Both are in a transmissive state.

In addition, when the height H ₀ of the top of the pull-tab 11 is lower than a predetermined lower limit position, as shown in FIG. 7 (C), the light LB1 of the first sensor 43 and the light LB2 of the second sensor 45 Both are in a light-shielded state.

Thus, according to the height detection device 100 of this configuration, the first detection element 33 and the first sensor 43 and the second detection element 35 and the second sensor 45 can be used. The vertical relationship with the predetermined upper limit position and the vertical relationship with the predetermined lower limit position are individually detected for the height of the pull tab 11. As a result, compared with the case where the height relationship with the upper limit position and the lower limit position is detected by one sensor, more accurate height detection can be achieved.

For example, consider a situation in which a slit hole corresponding to a predetermined upper limit position and a lower limit position is provided in the light shielding plate, the light shielding plate is displaced in the vertical direction according to the height of the pull-tab 11, and whether the projected light passes through the slit hole Transmission for height detection. In this case, for example, even if the position of the shading plate is adjusted with high accuracy so that the predetermined upper limit position can be accurately detected, it is difficult to detect the lower limit position with high accuracy at the same time in practice. This is because the light passing through the slit hole is not necessarily ideal parallel light and has a wide intensity distribution. Furthermore, unevenness in light receiving sensitivity may occur due to the installation state of the sensor. Setting the detection range becomes complicated, and it takes a lot of time to adjust it.

That is, according to the height detection device 100 of this configuration, by using different sensors to detect the relationship with the predetermined upper limit position and the lower limit position for the height of the pull-tab 11, the adjustment of each sensor becomes simple. Moreover, the height of the pull-tab 11 can be detected more accurately than in the case of detection by one sensor.

In the height detection device 100 of this configuration, the first sensor 43 and the second sensor 45 are supported by a sensor support member 41 fixed to the base 13. Therefore, the sensor does not move due to the driving of the turntable 15 and the lifting block 17. Therefore, there is no hidden danger of disconnection of the cable connected to the sensor, and it is possible to prevent the occurrence of failure and malfunction of the sensor beforehand. In addition, by using light-transmitting sensing Device. The durability is improved compared to a contact sensor, and stable height detection can be achieved even during long-term operation.

Furthermore, according to the assembly machine 200 of the height detection device 100 having the above-mentioned structure, the pull tab 11 outside the predetermined height range can be reliably removed in the middle of production, thereby preventing the incorporation of defective products and efficiently manufacturing high-quality zipper components. . In addition, the sensor is not prone to failure, and the setting and adjustment of the sensor is easy to perform, the running cost is reduced, and detection and setting errors are not easy to occur.

As such, the present invention is not limited to the above-mentioned embodiments. The mutual combination of the structures of the embodiments, changes and applications made by those skilled in the art based on the description of the description and known technologies are also expected by the present invention. Included in the sphere of protection.

For example, the first sensor and the second sensor have been described as light-transmissive sensors, but light-reflective sensors, laser sensors, ultrasonic sensors, and magnetic sensors can also be used. Non-contact sensors such as sensors, electrostatic capacitance sensors, and contact sensors such as micro switches.

In addition, the above-mentioned configuration is a configuration in which the first sensor and the second sensor are arranged side by side in the horizontal direction, but the sensors may be arranged at intervals in the vertical direction, and each of the sensors may be arranged at a distance from each other. A structure in which the first detection element and the second detection element are arranged in a manner of shading according to the upper and lower limits. In this manner, the arrangement position of the sensor can be appropriately changed.

As described above, this specification discloses the following matters.

(1) A height detection device for an assembly machine, which is provided for assembling a zipper member The assembled assembly machine detects the height of the object including at least a part of the zipper member, and includes: a base; a sliding member for lifting and lowering the base; and a support member for The object to be abutted with the sliding member is supported at the lower end of the lifting stroke of the sliding member; the first detecting member and the second detecting member are respectively extended from the sliding member, and the upper limit position of the height of the first detecting member and the object is provided. Correspondingly, the second detection element is provided corresponding to the lower limit position of the height of the object to be detected; and the first sensor and the second sensor are respectively fixed to the base, and the first sensor detects the first detection Height of the object, the second sensor detects the height of the second detection element, and when the sliding member is lowered to abut the object, the upper limit position of the object is detected by the first sensor and the first detection element, The lower limit position of the object is detected by the second sensor and the second detecting element.

According to the height detecting device for this assembly machine, when the sliding member comes into contact with the object, the first sensor detects whether the object exceeds the upper limit position, and the second sensor detects whether the object exceeds the lower limit position. . As described above, since the relationship between the detected object and the upper limit position and the lower limit position is detected by different sensors, adjustment of each sensor is simplified, and detection with higher accuracy can be achieved. In addition, since each sensor is fixed on the base and does not move up and down, damage to the sensor and the cable connected to the sensor can be prevented in advance. This makes it possible to stably detect the height of the subject based on each sensor over a long period of time.

(2) In the height detection device for an assembly machine described in (1), the first sensor and the second sensor are light-transmissive sensors, and the first detection element and the second detection element are inserted into the light A light-shielding member of a light detection area of a transmission sensor.

According to the height detection device for this assembly machine, since the first sensor and the second sensor are light-transmissive sensors, it is possible to perform high-speed height detection without abrasion without contact.

(3) In the height detection device for an assembly machine according to (1) or (2), the sliding member is urged downwardly on the frame member via an elastic member, and the frame member is fixed to a lifting block that is driven by lifting. .

According to the height detection device for this assembly machine, even when the lifting stroke of the lifting block exceeds the height at which the sliding member contacts the object, the difference in stroke is absorbed by the relative movement of the sliding member and the lifting block. Thereby, it is not necessary to adjust the stroke of the raising and lowering operation according to the size of the subject, and it is possible to shorten the time for changing the production line.

(4) In the height detection device for an assembly machine described in (1) or (2), the first detection element and the second detection element are rod-shaped members in which a long axis is arranged in a vertical direction, and the first detection element The height of the lower front end corresponds to the upper limit position, and the height of the lower front end of the second detection element corresponds to the lower limit position.

According to the height detection device for this assembling machine, since the upper limit position and the lower limit position are set by the heights of the lower ends of the first and second detection elements, the height adjustment becomes easy. In addition, compared with the case where slit holes are provided, The processing steps thus make the production of the test piece simple. The rod-shaped members of the first detection member and the second detection member are not limited to an elongated plate, but may be circular columnar pieces, and the cross-sectional shape of the rod-shaped member may be a circular cross section or a non-circular cross section.

(5) In the height detection device for an assembly machine according to (1) or (2), the first sensor and the second sensor are arranged at the same height as each other.

According to the height detection device for this assembly machine, since the first sensor and the second sensor are at the same height, the height position can be adjusted only by the first detection element and the second detection element. As a result, when the production line is changed, for example, it is possible to easily replace the first detection element and the second detection element mounted on the sliding member, and to adjust the height of the first detection element and the second detection element using an appropriate jig. .

(6) An assembly machine including the height detection device for an assembly machine according to (1) or (2).

According to this assembly machine, since the relationship with the upper limit position and the lower limit position of the object is detected by different sensors, it is possible to achieve high-precision detection by simply adjusting each sensor. In addition, since each sensor is fixed to the base and does not move up and down, it is possible to prevent damage to the cables and the like connected between the sensor and the sensor in advance. This makes it possible to stably detect the height of the subject based on each sensor over a long period of time.

(7) In the assembly machine described in (6), the support member has a rotary table that supports a plurality of test objects at different positions along the circumferential direction, and the assembly machine further includes intermittently rotating the rotary table at the arrangement pitch of the test objects. Driven turntable drive.

According to this assembly machine, it is possible to continuously perform a plurality of test objects without human labor. Height detection. The size of the subject and the position of the subject can be detected by detecting the height of the subject.

Claims (7)

A height detecting device (100) for an assembling machine is provided in an assembling machine (200) for assembling a zipper component, and detects the height of an object (11) including at least a part of the zipper component, including : Abutment (13); a sliding member (25) for raising and lowering with respect to the abutment (13); a support member (ST) for communicating with the lower end of the lowering stroke of the sliding member (25) The to-be-detected body (11) abutted by the sliding member (25) is supported; the first detecting member (33) and the second detecting member (35) are respectively extended from the sliding member (25), and the The first detection element (33) is provided corresponding to the upper limit position of the height of the object (11), and the second detection element (35) is corresponding to the lower limit position of the height of the object (11). And a first sensor (43) and a second sensor (45), which are respectively fixed to the base (13), and the first sensor (43) detects the first detection element (33), the second sensor (45) detects the height of the second detecting element (35), and when the sliding member (25) descends, it comes into contact with the object (11) , Through the first sensing (43) and the first detection element (33) to detect the upper limit position of the subject (11), and pass the second sensor (45) and the second detection element (35) ) To detect the lower limit position of the subject (11). The height detection device (100) for an assembly machine according to item 1 of the scope of patent application, wherein the first sensor (43) and the second sensor (45) are light-transmissive sensors The first detection element (33) and the second detection element (35) are light shielding members inserted into a light detection region of the light transmission sensor. The height detection device (100) for an assembly machine according to item 1 or 2 of the scope of patent application, wherein the sliding member (25) is supported by the frame member (13) via a resilient member (63) in a downward force. 23), the frame member (23) is fixed to a lifting block (17) driven by lifting. The height detection device (100) for an assembly machine according to item 1 or 2 of the scope of patent application, wherein the first detection piece (33) and the second detection piece (35) are respectively long axes The height of the lower front end of the first detection element (33) is equal to the upper limit position, and the height of the lower front end of the second detection element (35) is equal to the lower limit position. quite. The height detection device (100) for an assembly machine according to item 1 or 2 of the scope of patent application, wherein the first sensor (43) and the second sensor (45) are arranged at each other Same height. An assembling machine (200) includes a height detecting device (100) for an assembling machine according to item 1 or 2 of the scope of patent application. The assembling machine (200) according to item 6 of the scope of patent application, wherein the support member (ST) has a turntable (15) that supports a plurality of the objects (11) at different positions along the circumferential direction. The assembling machine (200) further includes a turntable driving unit that intermittently drives the turntable (15) at an arrangement pitch of the subject (11).