CN210359048U - Instant monitoring device for feeding device of thread rolling machine - Google Patents

Abstract

The utility model discloses a thread rolling machine feedway instant monitoring devices, comprises a workbench, a machine support, a controller, the thread rolling machine, the feed slide rail, the feeding slide rail, the mount, divide the material box body, short material discharge tube, long material discharge tube, short material collecting box, long material collecting box, short material discharge tube one end is connected with dividing the material box body and switches on other end slope and is connected downwards and to switch on with short material collecting box, long material discharge tube one end is connected with dividing the material box body and switches on other end slope and is connected downwards and to switch on with long material collecting box, the feed slide rail passes the feed box body and to the feed slide rail feed, divide the internal monitoring mechanism that is equipped with of material box, accuse material mechanism and feed divider. The utility model discloses a length of monitoring mechanism monitoring bolt blank, accuse material mechanism make the bolt blank in the feed slide rail through monitoring mechanism one by one, and feed mechanism carries the length behind the monitoring mechanism to length material discharge conduit and short material discharge conduit respectively, realizes accurate monitoring, improves screening efficiency and screening effect.

Description

Instant monitoring device for feeding device of thread rolling machine

Technical Field

The utility model relates to a bolt processing equipment technical field, especially a thread rolling machine feedway real-time supervision device.

Background

At present, in the bolt manufacturing process, most of bolt tapping processes are carried out by adopting thread rolling equipment, the thread rolling machine is professional bolt production equipment, the thread rolling machine is mainly supplied by a vibration disc, bolt blanks to be rolled are placed in the vibration disc, and the bolt blanks are sequentially conveyed to a thread rolling mechanism along a feeding slide way under the action of the vibration disc, so that automatic thread rolling is realized.

The bolts have the characteristics of multiple projects, multiple batches and large batch in production, and the mutual mixing phenomenon of bolt blanks with different lengths is inevitable. Despite the small number of mixing elements, it is not easy to screen out excessively long or short bolt blanks from a large number of products. The residue of the mixed parts is easy to interfere the operation of a user on an assembly line, and great hidden danger is generated on the quality of a real object of a production side.

In the prior art, the mixed parts are screened by two modes of manual screening and mechanical screening, wherein the manual screening not only consumes time and labor and has low efficiency, but also easily ignores residues, and the mechanical screening effect is generally poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem, a real-time monitoring device for a feeding device of a thread rolling machine is designed.

The technical scheme of the utility model is that the real-time monitoring device of the feeding device of the thread rolling machine comprises a workbench, a frame and a controller which are fixedly arranged on the workbench, a vibration disc fixed at the top of the frame, and the thread rolling machine positioned at one side of the workbench, wherein the output end of the vibration disc is connected with a feeding slide rail for conveying bolt blanks, the thread rolling machine is provided with a feeding slide rail connected with the feeding slide rail, the feeding slide rail and the feeding slide rail are obliquely arranged, the real-time monitoring device also comprises a fixing frame, a distributing box body, a short material discharging pipeline, a long material discharging pipeline, a short material receiving box and a long material receiving box, the fixing frame, the short material receiving box and the long material receiving box are fixedly arranged on the workbench, the distributing box body is fixedly arranged on the fixing frame, the short material discharging pipeline and the long material discharging pipeline are fixedly arranged at two sides of the distributing box body, one end of the short material discharging pipeline is connected with the distributing box body, long material discharge tube one end is connected with the feed box body and switches on the other end slope and is connected the switch on downwards with long material collecting box, the feed slide rail passes the feed of feed box body to the feed slide rail, the internal monitoring mechanism who is used for monitoring the length of bolt blank that is equipped with of feed box and the accuse material mechanism that is used for making the bolt blank in the feed slide rail process monitoring mechanism one by one, the feed box body foolproof is equipped with and carries the feed mechanism to long material discharge tube of bolt blank and bolt blank short-circuit material respectively with the monitoring mechanism cooperation, the controller is connected with vibrations dish, monitoring mechanism, accuse material mechanism and feed mechanism electricity.

Preferably, the feeding slide rail is composed of a first angle steel and a second angle steel which are symmetrically distributed, the sections of the first angle steel and the second angle steel are inverted L-shaped, and the gap between the upper parts of the first angle steel and the second angle steel is larger than the diameter of the rod part of the bolt blank and smaller than the diameter of the head part of the bolt blank.

Preferably, the material control mechanism comprises a first electromagnet, a second electromagnet and a third electromagnet, the feeding slide rail is provided with a first material control station, a second material control station and a third material control station along the conveying direction of the feeding slide rail, and the first electromagnet, the second electromagnet and the third electromagnet are respectively arranged on the first material control station, the second material control station and the third material control station at the upper end of the feeding slide rail.

Preferably, the monitoring mechanism comprises a short material micro switch, a first hinging seat, a first thin steel wire, a long material micro switch, a second hinging seat, a second thin steel wire and a proximity switch, the short material micro switch, the first hinging seat and the proximity switch are arranged on the side wall of the first angle steel facing the second angle steel, the first hinging seat is hinged with the first thin steel wire for monitoring the rod position of the bolt blank, the other end of the first thin steel wire is attached to a reed of the short material micro switch and then extends to a third control station, the long material micro switch and the second hinging seat are arranged on the second angle steel and are respectively arranged opposite to the short material micro switch and the first hinging seat, the second hinging seat is hinged with the second thin steel wire for monitoring the rod position of the bolt blank, the other end of the second thin steel wire is attached to a reed of the long material micro switch and then extends to the third control station, the proximity switch is positioned between the second material control station and the third material control station.

Preferably, feed mechanism includes mount pad, branch material electro-magnet, backup pad, connecting rod, spring fixed plate, extension spring, lever, striker plate and pushes away the material cylinder, mount pad, backup pad and spring fixed plate fixed mounting are in proper order at minute material box body up end, divide the material electro-magnet to install on the mount pad, divide the material electro-magnet output to install the connecting rod, the lever middle section articulates in the backup pad through the articulated shaft, lever one end stretches into in dividing the material box body with the articulated other end of connecting rod, the extension spring both ends are connected with spring fixed plate and lever respectively, leave the passageway that allows the bolt blank to pass through between short material discharge line and long material discharge line, divide material box body bottom to install and be used for pushing away the material cylinder to the passageway with bolt blank short material and the long material top.

Preferably, the first electromagnet, the second electromagnet, the third electromagnet and the material distributing electromagnet are all push-pull electromagnets.

Preferably, a full material sensor and an empty material sensor are arranged on the feeding slide rail along the conveying direction of the feeding slide rail in sequence, and the full material sensor and the empty material sensor are electrically connected with the controller.

The utility model has the advantages that:

1. the bolt blanks can be controlled to pass through the monitoring mechanism one by one through the material control mechanism, so that the monitoring and screening of the bolt blanks by the monitoring mechanism and the material distribution mechanism are facilitated;

2. the bolt blank before being sent into the thread rolling machine can be monitored in real time through the monitoring mechanism, when the proximity switch monitors that the bolt blank exists at the third material control station, if the bolt blank is not in contact with the first thin steel wire, the movable contact and the fixed contact of the short material micro-switch are not communicated, and the bolt blank is judged to be a mixed short material; if the bolt blank is in contact with the second thin steel wire, the second thin steel wire is stressed to push a movable contact of the long material microswitch to be communicated with a fixed contact, the bolt blank is judged to be a mixed long material, and accurate monitoring is realized;

3. in screening long material discharge tube and short material discharge tube respectively with long short material through feed mechanism, the final mixed long short material gets into in long material collecting box and the short material collecting box respectively, improves screening efficiency and screening effect.

Drawings

FIG. 1 is a schematic overall view of an instant monitoring device for a feeding device of a thread rolling machine according to the present invention;

FIG. 2 is a side view of the instant monitoring device of the feeding device of the thread rolling machine of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic structural view of the monitoring mechanism and the material distributing mechanism of the present invention;

in the figure, 1, a workbench; 2. a frame; 3. a controller; 4. a vibration plate; 5. a thread rolling machine; 6. a bolt blank; 7. a feeding slide rail; 71. a first angle steel; 72. a second angle steel; 8. a feeding slide rail; 9. a fixed mount; 10. a material distributing box body; 11. a short material discharge conduit; 12. a long material discharge conduit; 13. a short material receiving box; 14. a long material collecting box; 15. a first electromagnet; 16. a second electromagnet; 17. a third electromagnet; 18. a first material control station; 19. a second material control station; 20. a third control station; 21. a short material microswitch; 22. a first hinge mount; 23. a first thin steel wire; 24. a long material microswitch; 25. a second hinge mount; 26. a second thin steel wire; 27. a proximity switch; 28. a mounting seat; 29. a material distributing electromagnet; 30. a support plate; 31. a connecting rod; 32. a spring fixing plate; 33. a tension spring; 34. a lever; 35. a striker plate; 36. a material pushing cylinder; 37. a channel; 38. a full material sensor; 39. empty material sensor.

Detailed Description

The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1-4, a feeding device real-time monitoring device of thread rolling machine comprises a workbench 1, a frame 2 and a controller 3 which are fixedly arranged on the workbench 1, a vibration disc 4 fixed on the top of the frame 2 and a thread rolling machine 5 positioned on one side of the workbench 1, a feeding slide rail 7 for conveying bolt blanks 6 is connected with the output end of the vibration disc 4, a feeding slide rail 8 connected with the feeding slide rail 7 is arranged on the thread rolling machine 5, the feeding slide rail 7 and the feeding slide rail 8 are obliquely arranged, the bolt blanks 6 output by the vibration disc 4 can enter the feeding slide rail 8 by self weight on the oblique feeding slide rail 7 and enter the thread rolling machine 5 by self weight on the feeding slide rail 8, and the controller 3 is a programmable logic controller provided with a monitoring program therein.

In order to realize the function of monitoring and screening the bolt blanks 6 in real time, the device further comprises a fixing frame 9, a distribution box body 10, a short material discharge pipeline 11, a long material discharge pipeline 12, a short material collection box 13 and a long material collection box 14, the fixing frame 9, the short material collection box 13 and the long material collection box 14 are fixedly arranged on the workbench 1, the distribution box body 10 is fixedly arranged on the fixing frame 9, the short material discharge pipeline 11 and the long material discharge pipeline 12 are fixedly arranged on two sides of the distribution box body 10, one end of the short material discharge pipeline 11 is connected and conducted with the distribution box body 10, the other end of the short material discharge pipeline is obliquely downwards connected and conducted with the short material collection box 13, one end of the long material discharge pipeline 12 is connected and conducted with the distribution box body 10, the other end of the long material discharge pipeline is obliquely downwards connected and conducted with the long material collection box 14, the feeding slide rail 7 passes through the distribution box body 10 to feed the feeding slide rail 8, a monitoring mechanism for monitoring the length The distributing box body 10 is provided with a distributing mechanism which is matched with the monitoring mechanism to convey the long material of the bolt blank 6 and the short material of the bolt blank 6 to the long material discharging pipeline 12 and the short material discharging pipeline 11 respectively, and the controller 3 is electrically connected with the vibration disc 4, the monitoring mechanism, the material control mechanism and the distributing mechanism.

In order to smoothly convey the bolt blank 6 on the feeding slide rail 7, the feeding slide rail 7 is composed of a first angle steel 71 and a second angle steel 72 which are symmetrically distributed, the sections of the first angle steel 71 and the second angle steel 72 are in an inverted L shape, and the gap between the upper parts of the first angle steel 71 and the second angle steel 72 is larger than the rod part diameter of the bolt blank 6 and smaller than the head part diameter of the bolt blank 6, so that the head part of the bolt blank 6 can be slidably clamped at the gap between the upper parts of the first angle steel 71 and the second angle steel 72.

In order to control the bolt blanks 6 to pass through the detection mechanism one by one, the material control mechanism comprises a first electromagnet 15, a second electromagnet 16 and a third electromagnet 17, a first material control station 18, a second material control station 19 and a third material control station 20 are arranged on the feeding slide rail 7 along the conveying direction of the feeding slide rail, and the first electromagnet 15, the second electromagnet 16 and the third electromagnet 17 are respectively arranged on the first material control station 18, the second material control station 19 and the third material control station 20 at the upper end of the feeding slide rail 7. After the second electromagnet 16 clamps one bolt blank 6, the first electromagnet 15 limits the bolt blank 6 on the feeding slide rail 7 to continue moving to the second material control station 19, so that the second electromagnet 16 releases the clamped bolt blank 6, and the third electromagnet 17 clamps the bolt blank 6 to the third material control station 20, so that the monitoring mechanism detects the bolt blanks 6 one by one at the third material control station 20.

In order to distinguish long and short materials and facilitate the screening of the material distribution mechanism, the monitoring mechanism comprises a short material micro switch 21, a first hinged seat 22, a first thin steel wire 23, a long material micro switch 24, a second hinged seat 25, a second thin steel wire 26 and a proximity switch 27, the short material micro switch 21, the first hinged seat 22 and the proximity switch 27 are installed on the side wall of a first angle steel 71 facing a second angle steel 72, the first hinged seat 22 is hinged with the first thin steel wire 23 for monitoring the rod position of the bolt blank 6, the other end of the first thin steel wire 23 is jointed with the reed of the short material micro switch 21 and then extends to a third control station 20, the long material micro switch 24 and the second hinged seat 25 are installed on the second angle steel 72 and are respectively arranged opposite to the short material micro switch 21 and the first hinged seat 22, the second hinged seat 25 is hinged with the second thin steel wire 26 for monitoring the rod position of the bolt blank 6, the other end of the second thin steel wire 26 is jointed with the reed of the long material micro switch 24 and then extends to the third control station 20, the proximity switch 27 is located between the second control station 19 and the third control station 20. When the proximity switch 27 detects that a bolt blank 6 exists at the third material control station 20, if the bolt blank 6 is not in contact with the first thin steel wire 23, the first thin steel wire 23 does not push a reed of the short material micro switch 21, and the movable contact and the fixed contact of the short material micro switch 21 are not connected, the bolt blank 6 is detected to be a mixed short material; if the bolt blank 6 contacts with the second thin steel wire 26, the second thin steel wire 26 is changed by the thrust inclination angle of the bolt blank 6, and further pushes the reed of the long material microswitch 24, so that the movable contact of the long material microswitch 24 is communicated with the fixed contact, the bolt blank 6 is inevitably contacted with the first thin steel wire 23 when contacting with the second thin steel wire 26, and the movable contact of the short material microswitch 21 is communicated with the fixed contact in the same way, and the bolt blank 6 is detected to be a mixed long material; if the bolt blank 6 is in contact with the first thin steel wire 23 and is not in contact with the second thin steel wire 26, the bolt blank is detected to be a qualified blank, and accurate monitoring is realized.

In order to screen out the long and short materials detected by the monitoring mechanism, the material distributing mechanism comprises a mounting seat 28, a material distributing electromagnet 29, a supporting plate 30, a connecting rod 31 and a spring fixing plate 32, the device comprises a tension spring 33, a lever 34, a striker plate 35 and a pushing cylinder 36, wherein a mounting seat 28, a supporting plate 30 and a spring fixing plate 32 are sequentially and fixedly mounted on the upper end surface of the distribution box body 10, a distribution electromagnet 29 is mounted on the mounting seat 28, the output end of the distribution electromagnet 29 is provided with a connecting rod 31, the middle section of the lever 34 is hinged on the supporting plate 30 through a hinge shaft, one end of the lever 34 is hinged with the connecting rod 31, the other end of the lever 34 extends into the distribution box body 10, two ends of the tension spring 33 are respectively connected with the spring fixing plate 32 and the lever 34, a channel 37 allowing the bolt blank 6 to pass through is reserved between the short material discharge pipeline 11 and the long material discharge pipeline 12, and the pushing cylinder 36 used for pushing the short. If the monitoring mechanism detects that the bolt blank 6 is a long material, the material distribution electromagnet 29 drives the connecting rod 31 to move, the connecting rod 31 drives the lever 34 to rotate, the lower end of the material baffle plate 35 is inclined towards the short material discharge pipeline 11, thereby a passage from the channel 37 to the long material discharging pipeline 12 is opened, then the telescopic end of the pushing cylinder 36 extends out to push the long material of the bolt blank 6 at the third material control station 20 to the upper part of the channel 37, the telescopic end of the pushing cylinder 36 is contacted with the tail end of the long material rod part of the bolt blank 6 to push the bolt blank to the channel 37 along the axial direction thereof, the material distributing electromagnet 29 is matched with the pushing cylinder 36, after the long material of the bolt blank 6 enters the channel 37, the material-dividing electromagnet 29 drives the lever 34 and the material baffle plate 35 to move through the connecting rod 31, the lower end of the material baffle plate 35 inclines towards the long material discharge pipeline 12, thereby pushing the long bolt blank 6 to the long material discharge pipeline 12, and the long bolt blank 6 falls to the long material collecting box 14 in the inclined long material discharge pipeline 12 under the self-weight; similarly, if the monitoring mechanism detects that the bolt blank 6 is a short material, the material distributing electromagnet 29 drives the connecting rod 31 to move before the material pushing cylinder 36 pushes the bolt blank 6, so that the lower end of the material blocking plate 35 is firstly inclined towards the long material discharging pipeline 12, and material distribution is facilitated.

The first electromagnet 15, the second electromagnet 16, the third electromagnet 17 and the distributing electromagnet 29 are all push-pull electromagnets.

In order to facilitate monitoring of the number of the bolt blanks 6 between the first material control station 18 and the vibration disc 4 in the feeding slide rail 7, a full material sensor 38 and an empty material sensor 39 are sequentially arranged on the feeding slide rail 7 along the conveying direction of the feeding slide rail, the full material sensor 38 and the empty material sensor 39 are one or a combination of two of an infrared sensor, an ultrasonic sensor and a photoelectric sensor, the full material sensor 38 and the empty material sensor 39 are electrically connected with the controller 3, the full material sensor 38 and the empty material sensor 39 are used for monitoring the number of the bolt blanks 6, when the full material sensor 38 monitors the materials, the vibration disc 4 reduces conveying power or stops, and when the empty material sensor 39 monitors the materials, the vibration disc 4 increases the conveying power so that the conveying amount of the vibration disc 4 is matched with the processing amount of the thread rolling machine 5.

The working principle of the embodiment is as follows: the vibration disc 4 and the thread rolling machine 5 are both in the prior art, and the working principle thereof is not described again; starting a monitoring program through the controller 3, conveying the bolt blanks 6 to the feeding slide rail 7 by the vibration disc 4, clamping one bolt blank 6 by extending the telescopic end after the second electromagnet 16 is electrified, then clamping the bolt blank 6 at the upstream of the first material control station 18 by extending the telescopic end after the first electromagnet 15 is electrified, limiting the bolt blanks 6 on the feeding slide rail 7 to continue moving to the second material control station 19, then releasing the clamped bolt blanks 6 by powering off the second electromagnet 16, and clamping the bolt blanks 6 at the third material control station 20 by extending the telescopic end of the third electromagnet 17 so as to enable the monitoring mechanism to detect the bolt blanks 6 one by one at the third material control station 20;

when the proximity switch 27 detects that the bolt blank 6 exists at the third material control station 20 and the movable contact and the fixed contact of the short material microswitch 21 are not connected, a program in the controller 3 judges that the bolt blank 6 is a mixed short material; if the movable contact of the long material microswitch 24 is communicated with the fixed contact and the movable contact of the short material microswitch 21 is communicated with the fixed contact, the program in the controller 3 judges that the bolt blank 6 is a mixed long material; if the movable contact of the long-material microswitch 24 is not communicated with the fixed contact and the movable contact of the short-material microswitch 21 is communicated with the fixed contact, a program in the controller 3 judges that the bolt blank 6 is a qualified blank;

the controller 3 controls the monitoring mechanism to work according to the detection result, if the bolt blank 6 is detected to be a long material, the material-separating electromagnet 29 drives the connecting rod 31 to move, the connecting rod 31 drives the lever 34 to rotate, so that the lower end of the material baffle plate 35 inclines towards the short material discharge pipeline 11, thereby a passage from the channel 37 to the long material discharging pipeline 12 is opened, then the telescopic end of the pushing cylinder 36 extends out to push the long material of the bolt blank 6 at the third material control station 20 to the upper part of the channel 37, the telescopic end of the pushing cylinder 36 is contacted with the tail end of the long material rod part of the bolt blank 6 to push the bolt blank to the channel 37 along the axial direction thereof, the material distributing electromagnet 29 is matched with the pushing cylinder 36, after the long material of the bolt blank 6 enters the channel 37, the material-dividing electromagnet 29 drives the lever 34 and the material baffle plate 35 to move through the connecting rod 31, the lower end of the material baffle plate 35 inclines towards the long material discharge pipeline 12, thereby pushing the long bolt blank 6 to the long material discharge pipeline 12, and the long bolt blank 6 falls to the long material collecting box 14 in the inclined long material discharge pipeline 12 under the self-weight; similarly, if the monitoring mechanism detects that the bolt blank 6 is a short material, the material distributing electromagnet 29 drives the connecting rod 31 to move before the material pushing cylinder 36 pushes the bolt blank 6, so that the lower end of the material baffle plate 35 is firstly inclined towards the long material discharging pipeline 12, so that material distribution is facilitated, and the subsequent principle is the same as the above and is not described again; if the measuring mechanism detects that the bolt blank 6 is qualified, the third electromagnet 17 is powered off to release the bolt blank 6, so that the bolt blank 6 enters the feeding slide rail 8.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims (7)

1. A real-time monitoring device for a feeding device of a thread rolling machine comprises a workbench (1), a rack (2) and a controller (3) which are fixedly arranged on the workbench (1), a vibration disc (4) fixed at the top of the rack (2), and a thread rolling machine (5) positioned on one side of the workbench (1), wherein the output end of the vibration disc (4) is connected with a feeding slide rail (7) used for conveying bolt blanks (6), the thread rolling machine (5) is provided with a feeding slide rail (8) connected with the feeding slide rail (7), the feeding slide rail (7) and the feeding slide rail (8) are obliquely arranged, and the real-time monitoring device is characterized by further comprising a fixing frame (9), a distribution box body (10), a short material discharge pipeline (11), a long material discharge pipeline (12), a short material receiving box (13) and a long material receiving box (14), wherein the fixing frame (9), the short material receiving box (13) and the long material receiving box (14) are fixedly arranged on the workbench (1), the material distribution box is characterized in that the material distribution box body (10) is fixedly mounted on a fixing frame (9), the short material discharge pipeline (11) and the long material discharge pipeline (12) are fixedly mounted on two sides of the material distribution box body (10), one end of the short material discharge pipeline (11) is connected with the material distribution box body (10) and communicated with the other end of the short material discharge pipeline in an inclined mode downwards and communicated with the short material receiving box (13), one end of the long material discharge pipeline (12) is connected with the material distribution box body (10) and communicated with the other end of the long material discharge pipeline in an inclined mode downwards and connected with the long material receiving box (14), the feeding slide rail (7) penetrates through the material distribution box body (10) to feed the feeding slide rail (8), a monitoring mechanism used for monitoring the length of the bolt blanks (6) and a material control mechanism used for enabling the bolt blanks (6) in the feeding slide rail (7) to pass through the monitoring mechanism one by one, and the long material and the short material of the bolt blanks ( Discharge conduit (12) and short material discharge conduit (11), controller (3) are connected with vibrations dish (4), monitoring mechanism, accuse material mechanism and feed mechanism electricity.

2. The real-time monitoring device of the feeding device of the thread rolling machine according to claim 1, characterized in that the feeding slide rail (7) is composed of a first angle steel (71) and a second angle steel (72) which are symmetrically distributed, the cross sections of the first angle steel (71) and the second angle steel (72) are inverted L-shaped, and the gap between the upper parts of the first angle steel (71) and the second angle steel (72) is larger than the diameter of the rod part of the bolt blank (6) and smaller than the diameter of the head part of the bolt blank (6).

3. The real-time monitoring device for the feeding device of the thread rolling machine according to claim 2, wherein the material control mechanism comprises a first electromagnet (15), a second electromagnet (16) and a third electromagnet (17), the feeding slide rail (7) is provided with a first material control station (18), a second material control station (19) and a third material control station (20) along the conveying direction of the feeding slide rail, and the first electromagnet (15), the second electromagnet (16) and the third electromagnet (17) are respectively installed on the first material control station (18), the second material control station (19) and the third material control station (20) at the upper end of the feeding slide rail (7).

4. The device for monitoring the feeding device of the thread rolling machine according to claim 3, wherein the monitoring mechanism comprises a short material micro switch (21), a first hinged seat (22), a first thin steel wire (23), a long material micro switch (24), a second hinged seat (25), a second thin steel wire (26) and a proximity switch (27), the short material micro switch (21), the first hinged seat (22) and the proximity switch (27) are installed on the side wall of a first angle steel (71) facing to a second angle steel (72), the first thin steel wire (23) used for monitoring the rod position of the bolt blank (6) is hinged on the first hinged seat (22), the other end of the first thin steel wire (23) is attached to a reed of the short material micro switch (21) and then extends to a third material control station (20), and the long material micro switch (24) and the second hinged seat (25) are installed on the second angle steel (72) and respectively connected with the short material micro switch (21) and the first seat (22) The second thin steel wires (26) used for monitoring the rod position of the bolt blank (6) are hinged to the second hinge seats (25), the other ends of the second thin steel wires (26) are attached to the reed of the long material microswitch (24) and then extend to the third material control station (20), and the proximity switches (27) are located between the second material control station (19) and the third material control station (20).

5. The real-time monitoring device of the feeding device of the thread rolling machine according to claim 4, characterized in that the material distributing mechanism comprises a mounting seat (28), a material distributing electromagnet (29), a supporting plate (30), a connecting rod (31), a spring fixing plate (32), a tension spring (33), a lever (34), a material blocking plate (35) and a material pushing cylinder (36), wherein the mounting seat (28), the supporting plate (30) and the spring fixing plate (32) are sequentially and fixedly mounted on the upper end surface of the material distributing box body (10), the material distributing electromagnet (29) is mounted on the mounting seat (28), the connecting rod (31) is mounted at the output end of the material distributing electromagnet (29), the middle section of the lever (34) is hinged on the supporting plate (30) through a hinge shaft, one end of the lever (34) is hinged with the other end of the connecting rod (31) and extends into the material distributing box body (10), and two ends of the tension spring (33) are, a passage (37) allowing bolt blanks (6) to pass through is reserved between the short material discharge pipeline (11) and the long material discharge pipeline (12), and a material pushing cylinder (36) used for pushing the short materials and the long materials of the bolt blanks (6) to the passage (37) is installed at the bottom of the material distribution box body (10).

6. The real-time monitoring device for the feeding device of the thread rolling machine according to claim 5, wherein the first electromagnet (15), the second electromagnet (16), the third electromagnet (17) and the distributing electromagnet (29) are all push-pull type electromagnets.

7. The real-time monitoring device of the feeding device of the thread rolling machine according to claim 1, wherein a full material sensor (38) and an empty material sensor (39) are sequentially arranged on the feeding slide rail (7) along the conveying direction of the feeding slide rail, and the full material sensor (38) and the empty material sensor (39) are electrically connected with the controller (3).

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