CN213430203U - A leading note pipe steering device and ear-hang production facility for production of stethoscope ear-hang - Google Patents

Abstract

The utility model relates to a leading note pipe turns to device and ear string production facility for production is hung to stethoscope ear, leading note pipe turns to the device and includes the frame, a locating component for the canned spring piece position, a strutting subassembly for strutting the connecting hole of spring leaf, a subassembly turns to for stirring leading note pipe pivoted, it connects the removal frame in the frame including back-and-forth movement ground to turn to the subassembly, the first cylinder of frame back-and-forth movement is removed in the drive, rotate the pivot of connecting on removing the frame, one end and pivot fixed connection's connecting rod, fixed connection is dialling at the other end of connecting rod, the setting is on removing the frame and be used for driving pivot pivoted revolving cylinder. The structure is specially designed for ear-hang production, and after the spring piece, the sound guide tube and the earplug are assembled, the sound guide tube can rotate relative to the spring piece, so that the ear-hang is formed, the production efficiency is improved, and the labor cost is reduced.

Description

A leading note pipe steering device and ear-hang production facility for production of stethoscope ear-hang

Technical Field

The utility model relates to a leading note pipe turns to device and ear-hang production facility for production is hung to stethoscope ear.

Background

The stethoscope mainly comprises a pickup part (chest piece), a conduction part (rubber tube) and a listening part (ear hook). The chestpiece includes a stethoscope head. The rubber tube is generally Y-shaped, wherein one end is connected with the auscultation head, and the other two ends are connected with the ear-hang. The ear-hang comprises a U-shaped spring leaf, two sound guide pipes connected to metal at two ends of the spring leaf, and an earplug connected to the other end of the sound guide pipe opposite to the end connected to the spring leaf, wherein connecting holes for inserting the sound guide pipes are formed in two end portions of the spring leaf, a through groove arranged along the axial lead of the connecting holes is formed in the hole wall of the connecting holes, so that the cross section, perpendicular to the axial lead of the connecting holes, of the connecting holes is C-shaped, and a bending portion is arranged at a position, close to the other end of the sound guide pipe, so that the sound guide pipe is similar to L-shaped. The ear hook assembly sequence of the ear tube production equipment is that the spring piece is firstly positioned on the jig, then the sound guide tube is assembled on the spring piece, and then the earplugs are assembled on the sound guide tube. The ear-hang production equipment in the prior art is mainly completed manually when the sound guide tube is rotated, the production efficiency is low, and the labor cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims to provide a leading note pipe turns to device and ear-hang production facility for production is hung to stethoscope ear.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a leading note pipe that is used for stethoscope ear-hang production turns to device, leading note pipe turn to the device and are used for making the relative spring leaf of leading note pipe of connection on the spring leaf rotate, and the spring leaf has the connecting hole of pegging graft mutually with leading note pipe, and the logical groove that sets up along the axial lead of connecting hole is seted up to the pore wall of connecting hole, makes the cross-section of its axial lead of perpendicular to of connecting hole be C shape. Leading note pipe turns to device includes the frame, a locating component for the fixed spring piece position, a subassembly of strutting for strutting the connecting hole of spring piece, a subassembly that turns to for stirring leading note pipe pivoted, turn to the subassembly and connect the removal frame in the frame including back-and-forth movement ground, the first cylinder of drive removal frame back-and-forth movement, rotate the pivot of connection on removing the frame, one end and pivot fixed connection's connecting rod, fixed connection dials the piece at the other end of connecting rod, the setting is on removing the frame and is used for driving pivot pivoted revolving cylinder.

Further, the moving frame has a rear position and a front position, the link has a low position and a high position by rotation of the rotating shaft, a position of the dial in a vertical direction when the link is at the high position is higher than a position of the dial in the vertical direction when the link is at the low position,

the steering components are arranged in two groups along the left-right direction, the two groups of steering components are respectively defined as a first group of steering components and a second group of steering components,

the sound guide tube steering device has at least four working states, when the sound guide tube steering device is in a first working state, the moving frame in the first group of steering assemblies and the moving frame in the second group of steering assemblies are both in the rear position, and the connecting rods in the first group of steering assemblies and the connecting rods in the second group of steering assemblies are both in the low position; when the sound guide tube steering device is in a second working state, the moving frames of the first group of steering assemblies and the moving frames of the second group of steering assemblies are both in the front positions, and the connecting rods of the first group of steering assemblies and the connecting rods of the second group of steering assemblies are both kept in the low positions; when the sound guide tube steering device is in a third working state, the moving frames in the first group of steering assemblies and the moving frames in the second group of steering assemblies are kept at the front positions, the connecting rods in the first group of steering assemblies are at the high positions, and the connecting rods in the second group of steering assemblies are at the low positions; when the sound guide tube steering device is in the fourth working state, the moving frames in the first group of steering assemblies and the moving frames in the second group of steering assemblies are kept at the front positions, the connecting rods in the first group of steering assemblies are at the low positions, and the connecting rods in the second group of steering assemblies are at the high positions.

Further, when the link is in the low position, it extends in the vertical direction, and when the link is in the high position, it extends in the horizontal direction.

Furthermore, the bottom of the rack is fixedly connected with a sliding rail arranged along the front-back direction, the bottom of the moving frame is in sliding connection with the sliding rail, and the rotary cylinder and the rotating shaft are connected to the upper portion of the moving frame.

Furthermore, the shifting piece is rod-shaped, one end of the shifting piece is fixedly connected with the other end of the connecting rod, the central axis of the shifting piece and the central axis of the rotating shaft are arranged along the front-back direction, and the connecting rod is perpendicular to the shifting piece and the rotating shaft.

Furthermore, the positioning assembly comprises a pressing block which is arranged on the rack in a vertically moving mode and used for fixing the spring piece, and a second air cylinder which drives the pressing block to vertically move, wherein the pressing block is provided with a downward pressing position for pressing the spring piece and a rising position for disengaging from the spring piece; when the sound guide tube steering device is in the first working state, the pressing block is in the rising position, and when the sound guide tube steering device is in the second working state, the third working state and the fourth working state, the pressing block is in the pressing position.

Furthermore, a connecting frame is fixedly connected to the pressing block, the expanding assembly comprises a plug-in unit arranged on the connecting frame in a left-right moving mode and a third air cylinder driving the plug-in unit to move left and right, a plug is arranged at one end of the plug-in unit, and the plug-in unit 7 is provided with an expanding position enabling the plug to be inserted into the through groove and a releasing position enabling the plug 71 to exit from the through groove; when the sound guide tube steering device is in the first working state, the plug-in is in the release position, and when the sound guide tube steering device is in the second working state, the third working state and the fourth working state, the plug-in is in the opening position.

Furthermore, the two groups of the strutting assemblies are symmetrically arranged at the left side and the right side of the positioning assembly and synchronously act.

Further, the frame includes the bottom plate, the roof, two backup pads, the backup pad is the L shape of invering, the relative both ends of backup pad are its bottom and front end respectively, the left and right sides at the bottom plate is connected respectively to the bottom of two backup pads, the front end of two backup pads is connected respectively in the roof left and right sides, turn to the subassembly setting between two backup pads and move the frame and connect on the bottom plate with moving back-and-forth movement, locating component with prop the subassembly setting and connect on the roof in the place ahead of roof and locating component.

The utility model also provides another kind of technical scheme: the utility model provides an ear-hang production facility, includes the carousel of rotatory setting, sets up a plurality of tools at the edge of carousel, and the ear-tube production facility still includes foretell leading note pipe and turns to the device for the leading note pipe relative spring leaf that makes the connection on the spring leaf rotates.

Because of the application of the above technical scheme, the utility model discloses compare prior art and have following advantage:

this a leading note pipe turns to device and ear-hang production facility for production of stethoscope ear-hang, its structure is specially designed to the ear-hang production, after spring leaf, leading note pipe and earplug assembly accomplish, can realize making the rotation of the relative spring leaf of leading note pipe, makes the shaping of ear-hang, has improved production efficiency, reduces the human cost. This a leading note pipe turns to device and ear-hang production facility for production of stethoscope ear-hang need not axle platform, modularization, changes and controls compatibly with automatic operation equipment.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic perspective view of a sound guide tube turning device for ear-hang production of a stethoscope according to an embodiment of the present invention;

FIG. 2 is a perspective view of another perspective of the sound guide tube turning device in the embodiment of FIG. 1;

FIG. 3 is a schematic front view of the sound guide tube turning device in the embodiment of FIG. 1;

FIG. 4 is a schematic view of the cross-sectional structure C-C of FIG. 3;

fig. 5 is a schematic top view of an ear hook production device according to an embodiment of the present invention.

Wherein the reference numerals are as follows:

1. a frame; 11. a slide rail; 12. a base plate; 13. a top plate; 14. a support plate;

2. a steering assembly; 21. a movable frame; 22. a first cylinder; 23. a rotating shaft; 24. a connecting rod; 25. pulling a piece; 26. a rotating cylinder;

3. a positioning assembly; 31. briquetting; 32. a second cylinder; 33. a connecting frame;

4. a distraction assembly; 41. a plug-in; 42. a plug; 43. a third cylinder;

100. a sound guide tube steering device; 200. a turntable; 300. a jig; 400. a spring plate feeding device; 500. a sound guide tube assembling device; 600. an earplug assembly device; 700. a blanking device;

A. a spring plate; B. a sound guide tube.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the moving direction of the moving frame is defined as the front-back direction in the present embodiment, wherein the moving direction of the moving frame toward the sound guide tube is the front direction, and vice versa, the left-right direction and the up-down direction are two directions perpendicular to the front-back direction, and in addition, the terms indicating the direction or the position relationship in the present embodiment are only for convenience of description of the present invention and simplifying the description, but not for indicating or suggesting that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as a limitation to the present invention. The terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example one

In the production of the ear hook of the stethoscope, the sound guide tube steering device is used for enabling the sound guide tube connected to the spring piece to rotate relative to the spring piece, the spring piece is provided with a connecting hole connected with the sound guide tube in an inserted mode, a through groove arranged along the axial lead of the connecting hole is formed in the hole wall of the connecting hole, and the section, perpendicular to the axial lead, of the connecting hole is C-shaped. The structure of the ear hook is the prior art, so the drawings of the sound guide tube and the spring piece are not given in the embodiment. For convenience of description, the term "semi-finished earhook" is defined herein, and specifically refers to a product in which the sound guide tube, the leaf spring, and the earplug are assembled, but the end of the sound guide tube connected with the earplug is still disposed downward. And the term "position to be turned" is defined, and specifically refers to the position of the semi-finished product of the ear hook when the sound guide tube in the semi-finished product of the ear hook is turned by using the device.

Referring to fig. 1 to 4, the sound guide tube turning device in this embodiment includes a frame 1, a positioning assembly 3 for fixing the position of a spring plate, a spreading assembly 4 for spreading the connecting hole of the spring plate, and a turning assembly 2 for shifting the sound guide tube to rotate.

The steering assembly 2 comprises a moving frame 21 connected to the frame 1 in a back-and-forth moving manner, a first air cylinder 22 for driving the moving frame 21 to move back and forth, a rotating shaft 23 rotatably connected to the moving frame 21, a connecting rod 24 with one end fixedly connected to the rotating shaft 23, a shifting piece 25 fixedly connected to the other end of the connecting rod 24, and a rotary air cylinder 26 arranged on the moving frame 21 and used for driving the rotating shaft 23 to rotate. Specifically, the bottom of the frame 1 is fixedly connected with a slide rail 11 arranged along the front-back direction, the bottom of the moving frame 21 is slidably connected with the slide rail 11, the rotary cylinder 26 and the rotating shaft 23 are connected to the upper portion of the moving frame 21, the dial 25 is rod-shaped, one end of the dial is fixedly connected with the other end of the connecting rod 24, the central axis of the dial 25 and the central axis of the rotating shaft 23 are both arranged along the front-back direction, and the connecting rod 24 is arranged perpendicular to the dial 25 and the rotating shaft 23.

The steering assemblies 2 in the embodiment are two in number and are arranged in the left and right directions, and the two steering assemblies 2 are respectively used for shifting the two sound guide tubes. The two sets of steering assemblies 2 are defined as a first set of steering assemblies and a second set of steering assemblies, respectively.

Each of the moving frames 21 has a rear position and a front position. Each link 24 has a low position and a high position by rotation of the rotary shaft 23 connected thereto, and when the link 24 is in the high position, the position of the dial 25 connected thereto in the vertical direction is higher than the position of the dial 25 in the vertical direction when the link is in the low position.

The sound guide tube steering device has at least four working states. When the sound guide tube steering device is in the first working state, the moving frame 21 in the first group of steering assemblies and the moving frame 21 in the second group of steering assemblies are both in the rear position, so that the semi-finished ear-hang products are not prevented from moving to the position to be steered; the links 24 in the first set of steering assemblies and the links 24 in the second set of steering assemblies are in the low position. When the sound guide tube steering device is in the second working state, the moving frame 21 in the first group of steering assemblies and the moving frame 21 in the second group of steering assemblies are both in the front positions, and the connecting rods 24 in the first group of steering assemblies and the connecting rods 24 in the second group of steering assemblies are both kept in the low positions. When the sound guide tube steering device is in the third working state, the moving frame 21 in the first group of steering assemblies and the moving frame 21 in the second group of steering assemblies are both kept at the front positions, the connecting rods 24 in the first group of steering assemblies are at the high positions, and the connecting rods 24 in the second group of steering assemblies are at the low positions; when the sound guide tube steering device is in the fourth working state, the moving frame 21 in the first group of steering assemblies and the moving frame 21 in the second group of steering assemblies are kept at the front positions, the connecting rods 24 in the first group of steering assemblies are at the low positions, and the connecting rods 24 in the second group of steering assemblies are at the high positions. The third working state and the fourth working state of the sound guide tube steering device illustrate that the two steering components 2 respectively steer the two sound guide tubes in the ear-hang semi-finished product, but not simultaneously.

In a more preferred embodiment, the link 24 extends in a vertical direction when in the low position and extends in a horizontal direction when the link 24 is in the high position.

The positioning component 3 in the embodiment comprises a pressing block 31 which is arranged on the frame 1 in a vertically moving mode and used for fixing the spring piece, and a second air cylinder 32 which drives the pressing block 31 to vertically move, wherein the pressing block 31 is provided with a pressing position for pressing the spring piece and a lifting position for disengaging from the spring piece; when the sound guide tube steering device is in the first working state, the pressing block 31 is in the rising position, so that the pressing block 31 does not prevent the ear-hung semi-finished product from moving to the position to be steered; when the sound guide tube steering device is in the second working state, the third working state and the fourth working state, the pressing block 31 is in the pressing position, so that the spring piece is prevented from displacing in the process of steering the sound guide tube.

A connecting frame 33 is fixedly connected to the pressing block 31 for connecting the expansion assembly 4, which will be described in detail later. Because the C-shaped connecting hole clamps the sound guide pipe connected with the C-shaped connecting hole, in order to make the sound guide pipe more smoothly turn, the connecting hole needs to be opened through the opening component before the turning component 2 pulls the sound guide pipe to rotate.

The expanding assembly 4 in this embodiment includes an insert 41 provided on the connecting frame 33 so as to move left and right, and a third cylinder 43 for driving the insert 41 to move left and right, wherein one end of the insert 41 has a plug 42, and the insert 41 has an expanding position for inserting the plug 42 into the through-groove and a releasing position for withdrawing the plug 42 from the through-groove. The plug 42 has an inclined surface (visible in fig. 1 and 3), and the plug 42 is inserted into the through groove, and as the plug 42 is inserted, the through groove is expanded under the action of the inclined surface, so that the connecting hole is expanded. When the sound guide tube steering device is in the first working state, the plug-in 41 is in the release position, and when the sound guide tube steering device is in the second working state, the third working state, and the fourth working state, the plug-in 41 is in the expansion position. It should be noted here that, in the process of switching the sound guide tube steering apparatus from the first operating state to the second operating state, the positioning assembly 3 operates prior to the expanding assembly 4, that is, after the pressing block 31 moves to the pressing position first, the insert 41 moves to the expanding position again, and the steering assembly 2 can operate during the process of operating the positioning assembly 3 and the expanding assembly 4, and in order to ensure the operating efficiency, it is sufficient that the time when the moving member 21 moves to the front position is not later than the time when the insert 41 moves to the expanding position.

The number of the expanding components 4 in the embodiment is two, the two expanding components 4 are symmetrically arranged on the left side and the right side of the positioning component 3, and the two expanding components 4 synchronously move.

The rack 1 in this embodiment includes a bottom plate 12, a top plate 13, and two supporting plates 14, the supporting plates 14 are in an inverted L shape, the two opposite ends of the supporting plates 14 are the bottom end and the front end thereof, the bottom ends of the two supporting plates 14 are connected to the left and right sides of the bottom plate 12, the front ends of the two supporting plates 14 are connected to the left and right sides of the top plate 13, a steering assembly 2 is disposed between the two supporting plates 14 and a moving frame 21 is connected to the bottom plate 12 in a back-and-forth moving manner, and a positioning assembly 3 and a spreading assembly 4 are disposed in front of the top plate 13 and the positioning assembly 3 is.

Example two

Referring to fig. 5, the ear hook production apparatus in this embodiment includes a turntable 200 rotatably disposed, and a plurality of jigs 300 fixedly connected to an edge of the turntable 200. The turntable 200 is circular, the plurality of jigs 300 are sequentially and fixedly connected to the edge of the turntable 200, the number of the jigs 300 is set according to the number of stations arranged around the turntable 200, the distance between the jigs 300 is set according to the distance between the stations, and when one jig 300 rotates to a certain station along with the turntable 200, the jig 300 in front of the jig 300 adjacent to the certain station is just rotating to the next station of the station. The ear-hang production equipment in this embodiment further includes a spring piece feeding device 400, a sound guide tube assembling device 500, an earplug assembling device 600, a sound guide tube turning device 100, and a blanking device 700, which are correspondingly disposed at each station around the turntable 200 in sequence.

The spring plate loading device 400 is used for connecting the spring plate A to the jig 300.

The sound guide tube assembling apparatus 500 is used to connect the sound guide tube B to the spring plate a. Specifically, two sound tubes B are assembled to both ends of the spring piece a at the same time. One end part of the sound guide tube B connected with the spring piece A is a first end part of the sound guide tube B.

The earplug assembly device 600 is used to connect an earplug (not shown in the drawings) to a second end of the sound tube B opposite to its first end.

The sound guide tube B has a bent portion, so that the end of the second end portion faces downward when the sound guide tube assembly device 500 is used for assembling the sound guide tube B, in order to facilitate the assembly of the earplug. After the assembly of the earplugs is completed, it is necessary to rotate the sound guiding tube B by the sound guiding tube steering device 100 so that the second ends of the two sound guiding tubes B attached to the spring piece a are opposed, i.e., the two earplugs are opposed. The structure of the ear hook is assembled. The sound guide tube turning device 100 in the present embodiment may adopt the structure in the first embodiment.

The unloading device 700 is used for taking out and collecting the assembled ear hook from the jig 300.

The specific structures of the spring plate loading device 400, the sound guide tube assembling device 500, the earplug assembling device 600, and the unloading device 700 in this embodiment are not limited, and the structures in the prior art may be adopted, so that the corresponding functions can be realized.

The sound guide tube steering device for the ear-hang production of the stethoscope and the ear-hang production equipment in the embodiment have the advantages that the structure of the sound guide tube steering device is specially designed for the ear-hang production, and after the spring piece, the sound guide tube and the earplug are assembled, the sound guide tube can rotate relative to the spring piece, so that the ear-hang is formed, the production efficiency is improved, and the labor cost is reduced. This a leading note pipe turns to device and ear-hang production facility for production of stethoscope ear-hang need not axle platform, modularization, changes and controls compatibly with automatic operation equipment.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. The utility model provides a leading note pipe turns to device for production is hung to stethoscope ear, leading note pipe turns to device and is used for making the leading note pipe of connecting on the spring leaf rotate relative to the spring leaf, the spring leaf have with leading note pipe connecting hole of pegging graft mutually, the pore wall of connecting hole sets up the logical groove that sets up along the axial lead of connecting hole, makes the cross-section of its axial lead of perpendicular to of connecting hole is C shape, its characterized in that: the sound guide tube turning device comprises a rack (1), a positioning assembly (3) for fixing the position of a spring piece, a spreading assembly (4) for spreading a connecting hole of the spring piece, and a turning assembly (2) for shifting a sound guide tube to rotate, wherein the turning assembly (2) comprises a moving frame (21) which is connected to the rack (1) in a back-and-forth movement mode, a first air cylinder (22) for driving the moving frame (21) to move back and forth, a rotating shaft (23) which is connected to the moving frame (21) in a rotating mode, a connecting rod (24) with one end fixedly connected with the rotating shaft (23), a shifting piece (25) fixedly connected to the other end of the connecting rod (24), and a rotating air cylinder (26) which is arranged on the moving frame (21) and is used for driving.

2. The sound guide tube steering device according to claim 1, wherein: the moving frame (21) has a rear position and a front position, the link (24) has a low position and a high position by rotation of the rotary shaft (23), the position of the paddle (25) in the vertical direction when the link (24) is at the high position is higher than the position of the paddle (25) in the vertical direction when the link is at the low position,

the two steering assemblies (2) are arranged along the left-right direction, the two steering assemblies (2) are respectively defined as a first steering assembly and a second steering assembly,

the sound guide tube steering device has at least four working states, when the sound guide tube steering device is in a first working state, the moving frame (21) in the first group of steering assemblies and the moving frame (21) in the second group of steering assemblies are both in a rear position, and the connecting rod (24) in the first group of steering assemblies and the connecting rod (24) in the second group of steering assemblies are both in a low position; when the sound guide tube steering device is in a second working state, the moving frame (21) of the first group of steering assemblies and the moving frame (21) of the second group of steering assemblies are in front positions, and the connecting rods (24) of the first group of steering assemblies and the connecting rods (24) of the second group of steering assemblies are kept in low positions; when the sound guide tube steering device is in a third working state, the moving frame (21) in the first group of steering assemblies and the moving frame (21) in the second group of steering assemblies are kept at front positions, the connecting rods (24) in the first group of steering assemblies are at high positions, and the connecting rods (24) in the second group of steering assemblies are at low positions; when the sound guide tube steering device is in a fourth working state, the moving frame (21) in the first group of steering assemblies and the moving frame (21) in the second group of steering assemblies are kept at the front positions, the connecting rods (24) in the first group of steering assemblies are at the low positions, and the connecting rods (24) in the second group of steering assemblies are at the high positions.

3. The sound guide tube steering device according to claim 2, wherein: when the link (24) is in the low position it extends in a vertical direction and when the link (24) is in the high position it extends in a horizontal direction.

4. The sound guide tube steering device according to claim 1, wherein: the bottom fixedly connected with of frame (1) along slide rail (11) that the fore-and-aft direction set up the bottom of removal frame (21) with slide rail (11) looks sliding connection, revolving cylinder (26) with pivot (23) are connected the upper portion of removal frame (21).

5. The sound guide tube steering device according to claim 1, wherein: the poking piece (25) is rod-shaped, one end of the poking piece is fixedly connected with the other end of the connecting rod (24), the central axis of the poking piece (25) and the central axis of the rotating shaft (23) are arranged along the front-back direction, and the connecting rod (24) is perpendicular to the poking piece (25) and the rotating shaft (23).

6. The sound guide tube steering device according to claim 2, wherein: the positioning assembly (3) comprises a pressing block (31) which is arranged on the rack (1) in a vertically moving mode and used for fixing the spring piece, and a second air cylinder (32) which drives the pressing block (31) to vertically move, wherein the pressing block (31) has a pressing position pressing the spring piece and a rising position separated from the spring piece; when the sound guide tube steering device is in a first working state, the pressing block (31) is in a rising position, and when the sound guide tube steering device is in a second working state, a third working state and a fourth working state, the pressing block (31) is in a pressing position.

7. The sound guide tube steering device according to claim 6, wherein: the pressing block (31) is fixedly connected with a connecting frame (33), the opening assembly (4) comprises a plug-in unit (41) which is arranged on the connecting frame (33) in a left-right moving mode and a third air cylinder (43) which drives the plug-in unit (41) to move left and right, one end of the plug-in unit (41) is provided with a plug (42), and the plug-in unit (41) is provided with an opening position which enables the plug (42) to be inserted into the through groove and a releasing position which enables the plug (42) to exit the through groove; when the sound guide tube steering device is in a first working state, the plug-in piece (41) is in a release position, and when the sound guide tube steering device is in a second working state, a third working state and a fourth working state, the plug-in piece (41) is in a spreading position.

8. The sound guide tube steering device according to claim 7, wherein: the opening assemblies (4) are two groups, the opening assemblies (4) are symmetrically arranged on the left side and the right side of the positioning assembly (3), and the opening assemblies (4) act synchronously.

9. The sound guide tube steering device according to claim 1, wherein: the rack (1) comprises a bottom plate (12), a top plate (13) and two supporting plates (14), wherein the supporting plates (14) are in an inverted L shape, the two opposite ends of each supporting plate (14) are respectively the bottom end and the front end of each supporting plate, the bottom ends of the two supporting plates (14) are respectively connected to the left side and the right side of the bottom plate (12), the front ends of the two supporting plates (14) are respectively connected to the left side and the right side of the top plate (13), a steering assembly (2) is arranged between the two supporting plates (14) and a moving frame (21) is connected to the bottom plate (12) in a front-back and-forth movement mode, and a positioning assembly (3) and a spreading assembly (4) are arranged in front of the top plate (13) and the positioning assembly (3) is connected to the top plate (13).

10. An ear-hang production device is characterized in that: the sound guide tube steering device (100) comprises a rotary disc (200) which is arranged in a rotating mode, a plurality of jigs (300) which are arranged on the edge of the rotary disc (200), and the sound guide tube steering device (100) which is used for enabling a sound guide tube connected to a spring piece to rotate relative to the spring piece and is disclosed by any one of claims 1-9.

Images