CN113581565A

CN113581565A - Bolt threading machine

Info

Publication number: CN113581565A
Application number: CN202111144857.7A
Authority: CN
Inventors: 沙敦
Original assignee: Nantong Dunqiang Fastener Manufacturing Co Ltd
Current assignee: Nantong Dunqiang Fastener Manufacturing Co Ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2021-11-02
Anticipated expiration: 2041-09-28
Also published as: CN113581565B

Abstract

The invention discloses a bolt net penetrating machine which comprises a rack, wherein a conveying mechanism is arranged at the bottom of the rack, a plurality of protective net sleeves are arranged and placed on the conveying mechanism, an inclined opening is formed in the top end of the rack, bolts are sequentially arranged and placed at the inclined opening, an intermittent material stirring mechanism is further arranged on the side wall of the top end of the rack and used for stirring the bolts one by one, two pairs of first driving motors are symmetrically arranged on the side walls of two sides of the rack beside the conveying mechanism, the number of each pair is two, and the two first driving motors on the same side are sequentially arranged up and down. The invention relates to the technical field of hardware product packaging, and discloses a bolt threading machine which can accurately fix a bolt on a diagonal line of a protective net sleeve, fully utilizes the use space of the protective net sleeve, and can effectively protect the bolt without bumping collision with the protective net sleeve in the transportation process.

Description

Bolt threading machine

Technical Field

The invention relates to the technical field of hardware product packaging, in particular to a bolt net threading machine.

Background

The thread tops and right angles of the bolts are very susceptible to rubbing and scraping of the bolt heads and the polished rod portions during packaging or shipping. The protection methods are many, the most common method is to penetrate a plastic protection net sleeve outside the bolt, and the plastic protection net sleeve has multiple specifications, low cost, good wear resistance, good flexibility and strong protection performance on the bolt.

However, after the existing bolt is bagged and sealed by hot melting, because the inner space of the net cover after sealing is large, the bolt is randomly arranged in the net cover, and in the transportation process, the bolt can also generate the condition of bumping collision, thereby still causing abrasion and scraping to the surface and the port of the bolt.

To this end, we propose a bolt threading machine to solve the above problems.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a bolt threading machine.

In order to achieve the purpose, the invention adopts the following technical scheme:

a bolt net threading machine comprises a frame, wherein the bottom of the frame is provided with a conveying mechanism, a plurality of protective net sleeves are arranged on the conveying mechanism, the top end of the frame is provided with an inclined opening, the inclined opening is sequentially provided with bolts, the side wall of the top end of the frame is also provided with an intermittent material shifting mechanism, used for shifting the bolts one by one, two pairs of first driving motors are symmetrically arranged on the side walls of the two sides of the frame and are positioned beside the conveying mechanism, the two first driving motors are arranged in sequence from top to bottom, the driving shafts of the first driving motors penetrate through the side wall of the rack and are connected with screw rod mechanisms, the two screw rod mechanisms at the upper end are fixedly connected with bolt clamping plates, the two screw rod mechanisms at the lower end are fixedly connected with suction nozzle fixing plates, and a plurality of suction nozzles are arranged on the suction nozzle fixing plates;

still the symmetry is provided with second driving motor on the both sides lateral wall of frame, and second driving motor's drive end runs through the lateral wall of frame and is connected with screw mechanism, just the mechanism is sealed on the screw mechanism fixedly connected with, two inside walls in frame below are provided with down and seal the mechanism, on seal the mechanism and seal the mechanism cooperation down and place the bolt fastening in the diagonal department of protection screen cloth.

Preferably, it includes mounting panel, a plurality of installation piece, cutter, oblique hot melt board and goes up the hot melt board, and is a plurality of to go up sealing mechanism the installation piece sets up in pairs, and from the top down arranges in proper order, one side that oblique hot melt board is close to the mounting panel articulates there is flexible subassembly, and the installation piece on the other end of flexible subassembly and the mounting panel rotates to be connected, be provided with the U-shaped board on oblique hot melt board and the homonymy lateral wall of flexible subassembly, and be connected with the cutter through the flexible subassembly of first magnetism in the U-shaped board.

Preferably, the lower sealing mechanism comprises two lower hot melt plates connected through a second magnetic telescopic assembly, the two lower hot melt plates are arranged in parallel relatively, one of the two lower hot melt plates is fixedly provided with a magnetic block on the side wall of the lower hot melt plate, and when the two lower hot melt plates are attached to each other, the magnetic block is equally divided into two parts by the perpendicular bisector of the connecting line of the lower hot melt plates.

Preferably, first flexible subassembly of magnetism includes first electro-magnet, first guide arm, first compression spring and the metal lantern ring, first electro-magnet is fixed to be set up on the lateral wall of oblique hot melt board, first guide arm is fixed to be set up on the lateral wall of U-shaped board, and the metal lantern ring cover is established on first guide arm, and the outside cover of first guide arm is equipped with first compression spring, and the both ends of first compression spring offset the setting with the lateral wall of the metal lantern ring and first electro-magnet respectively.

Preferably, the second magnetic telescopic assembly comprises a second electromagnet, a second guide rod, a second compression spring and a metal plate, the second electromagnet is fixedly arranged on the side wall of the rack, the second guide rod penetrates through the side wall of the second electromagnet, the two ends of the second guide rod are fixedly connected with the metal plate and the side wall of the lower hot melt plate respectively, and the second compression spring is sleeved on the outer side of the second guide rod.

Preferably, conveying mechanism includes delivery support, servo motor, belt, conveying roller and conveyer belt, the last rotation of delivery support is connected with two conveying rollers, and two conveying rollers pass through the conveyer belt transmission, the fixed servo motor that is provided with in the frame, servo motor's drive shaft and one of them conveying roller pass through belt transmission.

Preferably, the intermittent type kickoff constructs including motor frame, third driving motor, pivot and driving lever, the pivot is rotated and is connected on the lateral wall of frame, the outside circumference array of pivot distributes has a plurality of driving levers, the fixed setting of third driving motor is on the lateral wall of motor frame, and the drive shaft of third driving motor run through the lateral wall of motor frame and with the tip fixed connection of pivot.

Preferably, the screw rod mechanism comprises a screw rod, a screw rod sleeve, a third guide rod and a guide sleeve, the screw rod is in threaded connection with the screw rod sleeve, the screw rod is driven by a first driving motor or a second driving motor, and the third guide rod is in sliding connection with the guide sleeve.

Preferably, the telescopic component comprises a sleeve, a telescopic rod, a third compression spring and a hinge joint, the telescopic rod is inserted into the sleeve, the third compression spring is sleeved outside the telescopic rod, and the hinge joint is fixedly arranged at one end of the sleeve and one end of the telescopic rod.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the upper sealing mechanism and the lower sealing mechanism are arranged, the bolt faces one side when being installed in the protective net sleeve through the lower sealing mechanism, and the joint extrusion action of the inclined hot melting plate and the upper hot melting plate in the upper sealing mechanism is utilized, so that the bolt can deflect to the other side of the protective net sleeve, the whole bolt is positioned on the diagonal line of the protective net sleeve, the space of the protective net sleeve is fully utilized, and the bolt cannot be rubbed and scraped in the protective net sleeve in the transportation process after sealing, so that the bolt is effectively protected;

2. according to the invention, the suction nozzles are symmetrically arranged on the two sides of the rack and are communicated with the draught fan, so that the opening at the upper end of the protective net sleeve can be always ensured to be always opened, the bolt can be prevented from accurately and effectively falling into the protective net sleeve, and on the other hand, when the inclined hot melting plate and the upper hot melting plate are contacted with the protective net sleeve, the inclined hot melting plate and the upper hot melting plate can be effectively attached, and the protective net sleeve can not be staggered when being sealed;

3. according to the invention, the inclined opening is formed in the rack, so that workers can conveniently feed the bolts, the bolts can slide downwards due to self gravity after being fed, manual moving is avoided, the conveying efficiency of the bolts is improved, and meanwhile, the intermittent material shifting mechanism is matched with the inclined opening, so that the bolts can be stably and accurately fed into the bolt clamping plate one by one.

Drawings

Fig. 1 is a schematic view of an assembly structure of a bolt threading machine according to the present invention;

FIG. 2 is a schematic side view of a bolt threading machine according to the present invention;

FIG. 3 is a partial structural diagram of a frame of a bolt threading machine according to the present invention;

FIG. 4 is a schematic structural diagram of an upper sealing mechanism of a bolt threading machine according to the present invention;

fig. 5 is a schematic structural diagram of a telescopic assembly of a bolt threading machine according to the present invention;

fig. 6 is a schematic structural diagram of an intermittent material shifting mechanism of a bolt threading machine according to the present invention.

In the figure: 1. a frame; 2. a conveying mechanism; 201. a delivery stent; 202. a servo motor; 203. a belt; 204. a conveying roller; 205. a conveyor belt; 3. a protective mesh sleeve; 4. an intermittent material shifting mechanism; 401. a motor frame; 402. a third drive motor; 403. a rotating shaft; 404. a deflector rod; 5. a first drive motor; 6. a screw rod; 7. a screw rod sleeve; 8. a bolt clamp plate; 9. a second drive motor; 10. an inclined opening; 11. a third guide bar; 12. a guide sleeve; 13. mounting a plate; 14. mounting blocks; 15. a lower hot melt plate; 16. a second electromagnet; 17. a second guide bar; 18. a second compression spring; 19. a suction nozzle fixing plate; 20. a suction nozzle; 21. a cutter; 22. an inclined hot melting plate; 23. an upper hot melt plate; 24. a magnetic block; 25. a telescoping assembly; 2501. a sleeve; 2502. a telescopic rod; 2503. a third compression spring; 2504. a hinge joint; 26. a U-shaped plate; 27. a metal plate; 28. a first electromagnet; 29. a first guide bar; 30. a first compression spring; 31. a metal collar.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-6, a bolt net threading machine comprises a frame 1, a conveying mechanism 2 is arranged at the bottom of the frame 1, a plurality of protective net sleeves 3 are arranged and placed on the conveying mechanism 2, an inclined opening 10 is formed at the top end of the frame 1, bolts are sequentially arranged and placed at the inclined opening 10, an intermittent material stirring mechanism 4 is further arranged on the side wall of the top end of the frame 1 and used for stirring the bolts one by one, it is to be noted that through the arrangement of the inclined opening 10, the bolts can slide downwards to the intermittent material stirring mechanism 4 by utilizing the self gravity to be convenient to stir, two pairs of first driving motors 5 are symmetrically arranged on the side walls of the two sides of the frame 1 beside the conveying mechanism 2, the number of each pair is two, the two first driving motors 5 on the same side are sequentially arranged from top to bottom, the driving shafts of the first driving motors 5 penetrate through the side wall of the frame 1 and are connected with a screw rod mechanism, the two screw rod mechanisms positioned at the upper end are fixedly connected with a bolt clamping plate 8, the two screw rod mechanisms positioned at the lower end are fixedly connected with a suction nozzle fixing plate 19, a plurality of suction nozzles 20 are arranged on the suction nozzle fixing plate 19, the suction nozzles 20 are communicated with an induced draft fan through hoses, equal suction force at two sides can be continuously provided, a sleeve opening of the protection net sleeve 3 is opened, the accuracy of entering and sealing of bolts is ensured, and in addition, the size of the opening of the protection net sleeve 3 which is sucked can be ensured by adjusting the distance between the suction nozzles 20 and matching with the power of the induced draft fan;

still the symmetry is provided with second driving motor 9 on the both sides lateral wall of frame 1, and the drive end of second driving motor 9 runs through the lateral wall of frame 1 and is connected with screw mechanism, and the screw mechanism fixedly connected with seals the mechanism, and two inside walls in frame 1 below are provided with down and seal the mechanism, seal the mechanism on and seal the mechanism cooperation effect with down and place the bolt fastening in the diagonal department of protection screen cloth 3.

Referring to fig. 2-4, specifically, the upper sealing mechanism includes a mounting plate 13, a plurality of mounting blocks 14, a cutter 21, an inclined hot melt plate 22 and an upper hot melt plate 23, the mounting blocks 14 are arranged in pairs and are sequentially arranged from top to bottom, one side of the inclined hot melt plate 22 close to the mounting plate 13 is hinged to a telescopic assembly 25, the other end of the telescopic assembly 25 is rotatably connected with the mounting block 14 on the mounting plate 13, a U-shaped plate 26 is arranged on the side wall of the inclined hot melt plate 22 and the side wall of the telescopic assembly 25, and the cutter 21 is connected to the U-shaped plate 26 through a first magnetic telescopic assembly.

It should be noted that the inclined thermal melting plate 22 is inclined in a direction that the inclined thermal melting plate is opened toward one end of the protection net 3, and the mounting plate 13 is provided with the mounting blocks 14 having a plurality of heights according to the specification of the bolt, so that the inclined thermal melting plate 22 and the upper thermal melting plate 23 can be mounted according to the specification of the bolt.

Referring to fig. 2-3, specifically, the lower sealing mechanism includes two lower hot melt plates 15 connected by a second magnetic telescopic assembly, the two lower hot melt plates 15 are arranged in parallel, a magnetic block 24 is fixedly arranged on a side wall of one lower hot melt plate 15, and when the two lower hot melt plates 15 are attached to each other, a perpendicular bisector of a connecting line of the two lower hot melt plates 15 equally divides the magnetic block 24 into two parts.

Referring to fig. 2 to 4, specifically, the second magnetic telescopic assembly includes a second electromagnet 16, a second guide rod 17, a second compression spring 18 and a metal plate 27, the second electromagnet 16 is fixedly disposed on a side wall of the rack 1, the second guide rod 17 penetrates through the side wall of the second electromagnet 16, two ends of the second guide rod 17 are respectively fixedly connected to the metal plate 27 and a side wall of the lower hot melt plate 15, and the second compression spring 18 is sleeved on an outer side of the second guide rod 17.

It should be noted that the transverse partition plate is arranged on the frame 1, and the partition plate is flush with the conveying mechanism 2, the second electromagnet 16 is fixedly installed on the partition plate, and a gap between the bottoms of the two lower hot melt plates 15 and the partition plate is 1-2mm, so that the partition plate is prevented from being cut and rubbed by the lower hot melt plates 15 during heat sealing.

Referring to fig. 2 to 4, specifically, the first magnetic telescopic assembly includes a first electromagnet 28, a first guide rod 29, a first compression spring 30 and a metal collar 31, the first electromagnet 28 is fixedly disposed on a side wall of the inclined thermal melting plate 22, the first guide rod 29 is fixedly disposed on a side wall of the U-shaped plate 26, the metal collar 31 is sleeved on the first guide rod 29, the first compression spring 30 is sleeved on an outer side of the first guide rod 29, and two ends of the first compression spring 30 respectively abut against the metal collar 31 and the side wall of the first electromagnet 28.

It should be noted that the cutting knife 21 is fixedly connected to the upper end side wall of the metal sleeve 31, and the gap between the cutting knife 21 and the inclined hot melt plate 22 is 1mm, so that the cutting knife 21 can be ensured to effectively cut the redundant part of the protective net 3.

Referring to fig. 1-2, specifically, the conveying mechanism 2 includes a conveying support 201, a servo motor 202, a belt 203, conveying rollers 204 and a conveying belt 205, the conveying support 201 is rotatably connected with two conveying rollers 204, the two conveying rollers 204 are driven by the conveying belt 205, the frame 1 is fixedly provided with the servo motor 202, a driving shaft of the servo motor 202 is driven by one of the conveying rollers 204 through the belt 203, and is controlled by one servo motor 202, and opening and closing can be adjusted and controlled according to the time of the sealing action.

Referring to fig. 1-2 and fig. 6, specifically, the intermittent material shifting mechanism 4 includes a motor frame 401, a third driving motor 402, a rotating shaft 403 and a shifting lever 404, the rotating shaft 403 is rotatably connected to the side wall of the frame 1, a plurality of shifting levers 404 are circumferentially distributed on the outer side of the rotating shaft 403 in an array manner, the third driving motor 402 is fixedly arranged on the side wall of the motor frame 401, a driving shaft of the third driving motor 402 penetrates through the side wall of the motor frame 401 and is fixedly connected with the end portion of the rotating shaft 403, and bolts can be fed into the bolt clamping plates 8 one by matching of the third driving motor 402 and the shifting lever 404, so as to prepare for subsequent bolt sealing into the protective mesh 3.

Referring to fig. 1-2, specifically, the screw mechanism includes a screw 6, a screw sleeve 7, a third guide rod 11 and a guide sleeve 12, the screw 6 is in threaded connection with the screw sleeve 7, the screw 6 is driven by a first driving motor 5 or a second driving motor 9, the third guide rod 11 is in sliding connection with the guide sleeve 12, and the screw 6 and the screw sleeve 7 move in a matching manner, so that stable and smooth movement can be ensured.

Referring to fig. 5, specifically, the telescopic assembly 25 includes a sleeve 2501, a telescopic rod 2502, a third compression spring 2503 and a hinge 2504, the telescopic rod 2502 is inserted into the sleeve 2501, the outer side of the telescopic rod 2502 is sleeved with the third compression spring 2503, the hinge 2504 is fixedly disposed at one end of the sleeve 2501 and one end of the telescopic rod 2502, and the hinge 2504 at the end of the telescopic rod 2502 is rotatably connected to the corresponding mounting block 14 or the inclined thermal melting plate 22 through the cooperation of the sleeve 2501 and the telescopic rod 2502 in the telescopic assembly, so that the inclined thermal melting plate 22 can rotate while the bolt is pushed to fall to one side, and finally the inclined thermal melting plate 22 is attached to the side wall of the upper thermal melting plate 23, thereby ensuring the smooth performance of the thermal sealing process above the protective mesh cover 3.

A pre-preparation stage: when the bolts need to be bagged and protected, firstly, the bolts are sequentially placed at the inclined opening 10 on the rack 1, the bolts can slide downwards under the action of gravity, the third driving motor 402 is started, the lowermost bolt is pushed onto the bolt clamping plate 8 by the pushing rod 404, meanwhile, the protective net sleeves 3 are sequentially placed on the conveying belt 205 below, when one of the protective net sleeves enters the partition plate on the rack 1, the bolt is positioned right above the bolt, the induced draft fan is started, and the suction nozzles 20 on the two sides continuously suck the side walls of the sleeve openings of the protective net sleeves 3, so that the protective net sleeves 3 are ensured to be in an open state;

and (3) sealing the bottom: at the moment, the first driving motor 5 at the uppermost end is started, the bolt clamping plate 8 is opened in a translation mode under the action of the screw rod 6 and the screw rod sleeve 7, the bolt falls to the partition plate on the partition plate and is provided with a cushion pad, the end part of the bolt cannot be damaged, meanwhile, under the attraction action of the magnetic block 24, the lower end part of the bolt is attracted to one side of the protective net sleeve 3, meanwhile, the second electromagnet 16 is started, under the action of magnetic force, the metal plate 27 drives the second guide rod 17 to move, the two lower hot melting plates 15 are close to each other, and therefore the lower end of the protective net sleeve 3 can be sealed;

an upper seal cutting stage: the second driving motor 9 is started, so that the inclined hot melt plate 22 and the upper hot melt plate 23 are gradually close to each other, the bolt head can be extruded to deflect to one side under the action of the inclined surface of the inclined hot melt plate 22, at the moment, one side of the inclined hot melt plate 22 is attached to the upper hot melt plate 23, along with the reduction of the distance, simultaneously, due to the action of the telescopic assembly 25, the inclined hot melt plate 22 can gradually rotate and be attached to the side wall of the upper hot melt plate 23, so that the sealing effect of the upper end of the protective net sleeve 3 is completed, at the moment, the first electromagnet 28 at the position of the inclined hot melt plate 23 is started, so that the metal sleeve ring 31 is attracted to move to one side of the inclined hot melt plate 23, so that the redundant part of the protective net sleeve 3 with the heat-sealed upper end can be cut off, the bolt is limited on the diagonal line of the protective net sleeve 3, compared with the traditional bagging process, the utilization space of the protective net sleeve 3 is improved, and further, in the transportation process, the protective net sleeve 3 is stably located in the protective net sleeve 3, the phenomenon of rubbing and scraping can not occur, the redundant protective net sleeve 3 after being cut can be subsequently recycled, and the resource waste is avoided.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A bolt threading machine comprises a rack (1) and is characterized in that a conveying mechanism (2) is arranged at the bottom of the rack (1), a plurality of protective net sleeves (3) are arranged and placed on the conveying mechanism (2), an inclined opening (10) is formed in the top end of the rack (1), bolts are arranged and placed at the inclined opening (10) in sequence, an intermittent material stirring mechanism (4) is further arranged on the side wall of the top end of the rack (1) and used for stirring the bolts one by one, two pairs of first driving motors (5) are symmetrically arranged on the side walls of the two sides of the rack (1) beside the conveying mechanism (2), each pair of first driving motors is two, the two first driving motors (5) on the same side are sequentially arranged from top to bottom, the driving shafts of the first driving motors (5) penetrate through the side wall of the rack (1) and are connected with a screw rod mechanism, the two screw rod mechanisms positioned at the upper end are fixedly connected with a bolt clamping plate (8), the two screw rod mechanisms positioned at the lower end are fixedly connected with a suction nozzle fixing plate (19), and a plurality of suction nozzles (20) are arranged on the suction nozzle fixing plate (19);

still the symmetry is provided with second driving motor (9) on the both sides lateral wall of frame (1), and the drive end of second driving motor (9) runs through the lateral wall of frame (1) and is connected with screw rod mechanism, just seal the mechanism on the screw rod mechanism fixedly connected with, two inside walls in frame (1) below are provided with down and seal the mechanism, on seal the mechanism and seal the mechanism cooperation down and place the bolt fastening in the diagonal department of protection net cover (3).

2. The bolt threading sleeve machine according to claim 1, characterized in that, it includes mounting panel (13), a plurality of installation piece (14), cutter (21), oblique hot melt plate (22) and last hot melt plate (23) to go up sealing mechanism, a plurality of installation piece (14) set up in pairs, and from the top down arranges in proper order, one side that oblique hot melt plate (22) is close to mounting panel (13) articulates there is flexible subassembly (25), and the other end of flexible subassembly (25) rotates with mounting panel (14) on mounting panel (13) to be connected, be provided with U-shaped board (26) on the homonymy lateral wall of oblique hot melt plate (22) and flexible subassembly (25), and be connected with cutter (21) through first magnetism flexible subassembly in U-shaped board (26).

3. The bolt threading sleeve machine according to claim 1, characterized in that the lower sealing mechanism comprises two lower hot melt plates (15) connected through a second magnetic telescopic assembly, the two lower hot melt plates (15) are arranged in parallel relatively, one of the two lower hot melt plates (15) is fixedly provided with a magnetic block (24) on the side wall, and when the two lower hot melt plates (15) are attached to each other, the magnetic block (24) is equally divided into two parts by a perpendicular bisector of the connecting line of the two lower hot melt plates (15).

4. The bolt threading machine according to claim 2, characterized in that the first magnetic telescopic assembly comprises a first electromagnet (28), a first guide rod (29), a first compression spring (30) and a metal lantern ring (31), the first electromagnet (28) is fixedly arranged on the side wall of the inclined hot melting plate (22), the first guide rod (29) is fixedly arranged on the side wall of the U-shaped plate (26), the metal lantern ring (31) is sleeved on the first guide rod (29), the first compression spring (30) is sleeved on the outer side of the first guide rod (29), and two ends of the first compression spring (30) are respectively abutted to the side walls of the metal lantern ring (31) and the first electromagnet (28).

5. The bolt threading machine according to claim 3, characterized in that the second magnetic telescopic assembly comprises a second electromagnet (16), a second guide rod (17), a second compression spring (18) and a metal plate (27), the second electromagnet (16) is fixedly arranged on the side wall of the rack (1), the second guide rod (17) penetrates through the side wall of the second electromagnet (16), two ends of the second guide rod are respectively fixedly connected with the metal plate (27) and the side wall of the lower hot melt plate (15), and the second compression spring (18) is sleeved on the outer side of the second guide rod (17).

6. The bolt threading machine according to claim 1, characterized in that the conveying mechanism (2) comprises a conveying support (201), a servo motor (202), a belt (203), conveying rollers (204) and a conveying belt (205), two conveying rollers (204) are rotatably connected to the conveying support (201), the two conveying rollers (204) are driven by the conveying belt (205), the servo motor (202) is fixedly arranged on the rack (1), and a driving shaft of the servo motor (202) is driven by one of the conveying rollers (204) through the belt (203).

7. The bolt threading machine according to claim 1, characterized in that the intermittent material-poking mechanism (4) comprises a motor frame (401), a third driving motor (402), a rotating shaft (403) and poking rods (404), wherein the rotating shaft (403) is rotatably connected to the side wall of the frame (1), a plurality of poking rods (404) are circumferentially distributed on the outer side of the rotating shaft (403) in an array manner, the third driving motor (402) is fixedly arranged on the side wall of the motor frame (401), and a driving shaft of the third driving motor (402) penetrates through the side wall of the motor frame (401) and is fixedly connected with the end part of the rotating shaft (403).

8. The bolt threading machine according to claim 1, characterized in that the screw mechanism comprises a screw (6), a screw sleeve (7), a third guide rod (11) and a guide sleeve (12), the screw (6) is in threaded connection with the screw sleeve (7), the screw (6) is driven by a first driving motor (5) or a second driving motor (9), and the third guide rod (11) is in sliding connection with the guide sleeve (12).

9. A bolt threading machine according to claim 2, characterized in that the telescopic assembly (25) comprises a sleeve (2501), a telescopic rod (2502), a third compression spring (2503) and a hinge joint (2504), the telescopic rod (2502) is inserted into the sleeve (2501), the outer side of the telescopic rod (2502) is sleeved with the third compression spring (2503), and one end of the sleeve (2501) and one end of the telescopic rod (2502) are fixedly provided with the hinge joint (2504).