Limiting mechanism for screw thread rolling plate

Abstract

The invention relates to the technical field of thread rolling plates, and discloses a limiting mechanism for a screw thread rolling plate, which comprises a screw storage bin, a supporting side plate fixedly connected with one side of the screw storage bin, a thread rolling fixed plate connected with the top of the screw storage bin through a bolt in a reinforcing manner, and a thread rolling movable plate arranged on the opposite surface of the thread rolling fixed plate; the screw assembling bin is arranged above the screw storage bin, the outer portion of the screw assembling bin is rotationally connected with a rotating disc, and a rotating tooth block is fixedly arranged on the outer ring of the bottom of the rotating disc; the rotating motor is fixedly arranged on the outer wall of the screw assembling bin, and the output end of the rotating motor is connected with a rotating tooth disc connected with the rotating tooth block in an engaged mode. The head of the unthreaded nail is supported by erecting the moving plate and triggering the bottom inserting opening, the height of the longitudinal adjusting supporting block is adjusted, the descending height of the unthreaded nail can be adjusted, free threading can be achieved, therefore, the different descending positions of the unthreaded nail can be adjusted according to needs, and more diversified thread rolling is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of thread rolling plates, in particular to a limiting mechanism for a screw thread rolling plate. Background Art

[0002] Special tools for processing taps and bolts, thread rolling plates, and two square templates used on the thread rolling machine are divided into two pieces, one long and one short, with teeth on them. They are used to extrude screw nails into threads. One set of thread rolling plate templates is fixed and placed, and the other set of thread rolling plate templates moves laterally along the fixed template, so that the nails are placed between the two sets of templates, so that the nails are extruded into a specific thread shape. The thread rolling plate must have extremely high hardness, wear resistance, sufficient strength, certain impact force, and strong fatigue resistance.

[0003] For the existing thread rolling plate, when feeding the light pin, the top of the light pin is generally made to fall on the upper part of the thread rolling plate, and the light pin is moved between two sets of thread rolling plate templates. The limit height of the light pin cannot be adjusted, and there are certain thread rolling limitations in actual production. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a limiting mechanism for a screw thread rolling plate, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solutions:

[0006] It includes: a screw storage bin, a supporting side plate fixedly connected to one side of the screw storage bin, a thread rolling fixed plate reinforced and connected to the top of the screw storage bin by bolts, and a thread rolling movable plate arranged on the opposite side of the thread rolling fixed plate;

[0007] Also includes:

[0008] The screw assembly bin is arranged above the screw storage bin, and a rotating disk is rotatably connected to the outside of the screw assembly bin, and a rotating gear block is fixedly arranged on the bottom outer ring of the rotating disk;

[0009] The rotating motor is fixed on the outer wall of the screw assembly bin, and the output end of the rotating motor is connected to a rotating toothed disc meshing with the rotating toothed block;

[0010] The screw rod connecting horizontal plate is fixedly arranged on the outer wall of the bottom port of the screw assembly bin, the other end of the screw rod connecting horizontal plate is connected with a displacement screw rod, the bottom of the screw rod connecting horizontal plate is fixedly connected with a reinforcement connecting column, the interior of the reinforcement connecting column is provided with a column opening, the column opening hole is rotatably connected with a column screw, the column opening hole is slidably connected with a longitudinal adjustment support block, and the longitudinal adjustment support block is meshed and connected with the column screw rod;

[0011] The synchronous moving block is arranged on one side of the reinforced connecting column, and a synchronous extension plate is fixedly arranged on the end surface of the synchronous moving block close to the reinforced connecting column, and the longitudinal adjustment support block extends to the other side through the column opening and is slidably connected to the outside of the synchronous extension plate;

[0012] The screw rod erection plate is fixedly arranged at the front end of the longitudinal adjustment support block, and a erection movable plate which can be moved laterally is arranged on the surface of the screw rod erection plate;

[0013] The spacing adjustment mechanism is arranged in the screw rod erection plate and is connected with the erection movable plate.

[0014] Furthermore, a movable screw rod is installed on the top of the screw storage bin through a column, one end of the movable screw rod is connected to a screw rod driving motor, and an outer engaging sleeve of the movable screw rod is provided with a screw rod movable sleeve.

[0015] Furthermore, the side wall of the screw rod movable sleeve is plug-connected with the thread rolling movable plate through an insert block, a slide groove is provided at the top of the screw storage bin and on one side of the thread rolling movable plate, a support block is slidably connected in the slide groove, and a connecting screw rod is crossed on the surface of the support block.

[0016] Furthermore, an opening is provided on the surface of the supporting side plate to allow the displacement screw to be embedded, and a motor is provided at one end of the displacement screw.

[0017] Furthermore, a limiting transverse opening is provided on the surface of the screw assembly bin, a longitudinal limiting plate is slidably connected in the groove of the limiting transverse opening, and the front end of the longitudinal limiting plate passes through the limiting transverse opening and probes into the inner side of the tube of the screw assembly bin.

[0018] Furthermore, a rotating opening portion is provided on the surface of the rotating disk, and a sliding rod which slides along the groove of the rotating opening portion is fixed on the outer wall of the longitudinal limiting plate.

[0019] Furthermore, an electric push rod is fixedly connected to the surface of the screw assembly bin, a shielding plate is connected to the output end of the electric push rod, a rectangular hole is opened on the surface of the screw assembly bin to allow the shielding plate to pass horizontally, and a feed hole is opened on the top of the screw storage bin.

[0020] Furthermore, the spacing adjustment mechanism includes a horizontal hole of the movable plate, a spring part, a horizontal hole push block and a pushing screw part. The horizontal hole of the movable plate is opened on the surface of the screw mounting plate. The horizontal hole push block is slidably connected in the groove of the horizontal hole of the movable plate. One end of the horizontal hole push block is connected to the spring part, and the other end of the horizontal hole push block is connected to the pushing screw part.

[0021] Furthermore, the front end of the pushing screw part is rotatably connected to the connection of the horizontal hole push block, and the other side of the pushing screw part extends outward through the horizontal hole of the movable plate to set a handle. The end of the spring part away from the horizontal hole push block is connected to the mounting movable plate, and the top of the mounting movable plate is flush with the top of the screw mounting plate.

[0022] Furthermore, a trigger rod is fixedly provided on the side wall of the movable plate, a positioning socket portion is provided on the surface of the supporting side plate, a positioning rod portion is inserted into the interior of the positioning socket portion, a socket is provided on the top of the positioning rod portion, a trigger cross plate is inserted into the socket, a trigger bottom socket adapted to the socket is provided at the bottom of the trigger cross plate, and the trigger cross plate and the trigger rod are located on the same straight line.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present application sets a screw assembly bin above the gap between the thread rolling fixed plate and the thread rolling movable plate, so that the light nail can be assembled in the screw assembly bin, and the light nails of different thicknesses and sizes can be limited by the engagement of the rotating toothed disk and the rotating tooth block. At the same time, before the light nail falls between the thread rolling fixed plate and the thread rolling movable plate, the head of the light nail is supported by setting up the movable plate and triggering the bottom socket, and the height of the longitudinal adjustment support block can be adjusted to freely adjust the lowering height of the light nail, so that the different lowering positions of the light nail can be adjusted according to needs to achieve more diversified thread rolling.

[0025] The present application can adjust the spacing between the erection movable plate and the screw erection plate through the spacing adjustment mechanism, so that the heads of optical nails of different thicknesses and sizes can be erected, and at the same time, the trigger rod fixedly connected to the side wall of the erection movable plate moves synchronously with the erection movable plate, and at the end point, the surface of the trigger rod touches the trigger cross plate, and the spring part is compressed under the obstruction of the trigger cross plate, thereby increasing the spacing between the erection movable plate and the screw erection plate, so that the screws after thread rolling naturally fall off into the feed hole, thereby realizing automatic discharge of the screws, reducing manual participation, improving automation, and improving the thread rolling efficiency of optical nails, and adopting a mechanical structure design to reduce electrical equipment and reduce production and use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a side view of the present invention;

[0028] Figure 3 This is an enlarged view of the thread rolling movable plate of the present invention;

[0029] Figure 4 This is an enlarged view of the screw assembly bin of the present invention;

[0030] Figure 5 A top view of the rotating disk of the present invention;

[0031] Figure 6 It is a top view of the thread rolling movable plate of the present invention;

[0032] Figure 7 This is an enlarged view of the screw rod mounting plate of the present invention;

[0033] Figure 8 This is an enlarged view of the positioning socket portion of the present invention;

[0034] Fig. 9 This is an enlarged view of the reinforced connection column of the present invention.

[0035] In the figure: 1. Screw storage bin; 2. Support side plate; 3. Thread rolling fixed plate; 4. Thread rolling movable plate; 5. Moving screw rod; 6. Screw rod driving motor; 7. Screw rod moving sleeve; 8. Support bracket; 9. Connecting screw rod; 10. Displacement screw rod; 11. Screw rod connecting cross plate; 12. Screw assembly bin; 13. Rotating disk; 14. Rotating gear block; 15. Rotating motor; 16. Rotating gear disk; 17. Electric push rod; 18. Shielding plate; 19. Limiting horizontal opening hole; 20. Longitudinal limiting plate; 21. Rotating Opening portion; 22. Feed hole; 23. Synchronous sliding groove; 24. Synchronous moving block; 25. Reinforced connecting column; 26. Column opening; 27. Longitudinal adjustment support block; 28. Column screw; 29. ​​Screw mounting plate; 30. Mounting moving plate; 31. Moving plate transverse hole; 32. Spring portion; 33. Transverse hole push block; 34. Push screw portion; 35. Trigger rod; 36. Positioning socket portion; 37. Positioning plug portion; 38. Trigger transverse plate; 39. Trigger bottom socket; 391. Synchronous extension plate. DETAILED DESCRIPTION

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-9 The screw storage bin 1 includes: a screw storage bin 1, a supporting side plate 2 fixedly connected to one side of the screw storage bin 1, a thread rolling fixed plate 3 connected to the top of the screw storage bin 1 by bolts, and a thread rolling movable plate 4 arranged on the opposite side of the thread rolling fixed plate 3; the screw storage bin 1 and the supporting side plate 2 are in an L-shaped structure, a cavity is arranged in the screw storage bin 1, the cavity is used to collect the screws that have been threaded, and a feeding hole 22 is opened at the top of the screw storage bin 1, the threaded screws can fall into the screw storage bin 1 along the feeding hole 22, the side wall of the screw storage bin 1 is provided with an opening for convenient discharge, and the position of the feeding hole 22 is located on one side of the gap between the thread rolling fixed plate 3 and the thread rolling movable plate 4, the light nail is placed between the thread rolling fixed plate 3 and the thread rolling movable plate 4 for displacement and thread rolling, and finally the light nail is formed into a screw by thread rolling, and then falls into the feeding hole 22 on one side and enters the cavity of the screw storage bin 1. The thread rolling fixing plate 3 is fixed by bolts, and a movable screw rod 5 is installed on the top of the screw storage bin 1 through a column, one end of the movable screw rod 5 is connected to a screw rod driving motor 6, and an outer engaging sleeve of the movable screw rod 5 is provided with a screw rod moving sleeve 7. The side wall of the screw moving sleeve 7 is plugged into and connected with the thread rolling movable plate 4 through an insert block, and a slide groove is opened at the top of the screw storage bin 1 and on one side of the thread rolling movable plate 4, and a support bracket 8 is slidably connected in the slide groove, and a connecting screw 9 is crossed on the surface of the support bracket 8, and a socket is set on the back of the thread rolling movable plate 4, and the insert block of the side wall of the screw moving sleeve 7 is inserted into the insert hole, and the position of the insert block is limited by the limit screw at the top, so that the screw moving sleeve 7 and the thread rolling movable plate 4 can be combined. In this way, when the screw driving motor 6 drives the movable screw 5 to rotate, the screw moving sleeve 7 will move radially along the movable screw 5, and at the same time, it will drive the thread rolling movable plate 4 to move horizontally, and the support bracket 8 at the bottom of the thread rolling movable plate 4 can be plugged into the connecting screw 9, and the end of the connecting screw 9 is reinforced by a nut to make the support bracket 8 combined with the thread rolling movable plate 4, and the thread rolling movable plate 4 is limited by the support bracket 8 to improve the stability of the horizontal movement of the thread rolling movable plate 4 and improve the thread rolling stability.

[0040] The screw assembly bin 12 is arranged above the screw storage bin 1, and the screw assembly bin 12 is rotatably connected to the outside with a rotating disk 13, and the bottom of the outer ring of the bottom of the rotating disk 13 is fixed with a rotating tooth block 14 distributed in an annular manner; the rotating motor 15 is fixedly arranged on the outer wall of the screw assembly bin 12, and the output end of the rotating motor 15 is connected with a rotating tooth disk 16 meshing with the rotating tooth block 14; the surface of the rotating disk 13 is provided with a rotating opening portion 21, and the outer wall of the longitudinal limit plate 20 is fixed with a sliding rod sliding in the groove of the rotating opening portion 21, and the surface of the screw assembly bin 12 is provided with a limited horizontal opening 19, and the groove of the limited horizontal opening 19 is slidably connected with a longitudinal limit plate 20, and the front end of the longitudinal limit plate 20 passes through the limited horizontal opening 19 and probes into the screw assembly bin 1 2, one end of the longitudinal limit plate 20 extends into the screw assembly bin 12, so that one end of the longitudinal limit plate 20 can limit the head of the optical nail, so that the optical nails are arranged at a longitudinal spacing and are flush in the longitudinal direction. With the driving of the rotating motor 15, the rotating toothed disc 16 drives the meshing rotating tooth block 14 to rotate. Since the inner side of the rotating disc 13 is embedded in the screw assembly bin 12, the rotating disc 13 can rotate. With the rotation of the rotating disc 13, the rotating opening portion 21 on the surface of the rotating disc 13 is displaced, so that the sliding of the slide rod causes the longitudinal limit plate 20 to move radially in the limiting transverse opening 19, so that the clamping radius of the four groups of longitudinal limit plates 20 can be adjusted, so as to be suitable for optical nail heads with different radius sizes.

[0041] An electric push rod 17 is fixedly connected to the outer wall of the screw assembly bin 12 below the rotating gear block 14, and a baffle plate 18 is connected to the output end of the electric push rod 17. A rectangular hole is provided on the surface of the screw assembly bin 12 to allow the baffle plate 18 to pass horizontally. The baffle plate 18 is driven by the electric push rod 17 to move horizontally in the rectangular hole, and the bottom of the optical pin can be supported by the baffle plate 18. When the baffle plate 18 is separated from the rectangular hole, the lowest optical pin in the rectangular hole can fall. The screw rod connecting cross plate 11 is fixedly arranged on the outer wall of the bottom port of the screw assembly bin 12, and the other end of the screw rod connecting cross plate 11 is connected with the displacement screw rod 10, and the surface of the supporting side plate 2 is provided with an opening allowing the displacement screw rod 10 to be embedded, and a motor is arranged at one end of the displacement screw rod 10, and the screw rod connecting cross plate 11 is meshedly connected with the connection between the displacement screw rod 10, and the screw rod connecting cross plate 11 can be driven by the motor to move laterally along the displacement screw rod 10, so that the screw rod connecting cross plate 11 can drive the entire screw assembly bin 12 to move laterally. The bottom of the screw-connected cross plate 11 is fixedly connected with a reinforcement connection column 25, and a column opening 26 is provided inside the reinforcement connection column 25, and a column screw 28 is rotatably connected in the column opening 26, and a longitudinal adjustment bracket 27 is slidably connected in the column opening 26, and the longitudinal adjustment bracket 27 is meshed and connected with the column screw 28; the synchronous moving block 24 is arranged on one side of the reinforcement connection column 25, and the synchronous moving block 24 is fixed with a synchronous extension plate 391 on the end face close to the reinforcement connection column 25, and the longitudinal adjustment bracket 27 extends to the other side through the column opening 26 and is slidably connected to the outside of the synchronous extension plate 391; the screw mounting plate 29 is fixed at the front end of the longitudinal adjustment bracket 27, and a synchronous sliding groove 23 is provided on the surface of the supporting side plate 2, so that a part of the synchronous moving block 24 is embedded in the synchronous sliding groove 23 and can slide in the synchronous sliding groove 23, due to the connection of the reinforcement connection column 25, the parts connected to the reinforcement connection column 25 are The parts can be moved laterally at the same time, and a mounting movable plate 30 is set on one side of the screw mounting plate 29, and the top of the mounting movable plate 30 is flush with the top of the screw mounting plate 29. The mounting movable plate 30 and the top of the screw mounting plate 29 are used to mount the head of the optical nail, so that the rod of the optical nail is placed between the mounting movable plate 30 and the screw mounting plate 29 and extends downward. The height of the mounting movable plate 30 and the screw mounting plate 29 can be adjusted numerically according to actual use. By setting up the movable plate 30 and the screw setting plate 29 for the head of the light nail, the rod of the light nail is placed between the thread rolling movable plate 4 and the thread rolling fixed plate 3 and moved to perform thread rolling. By operating the turning handle of the column screw 28, the longitudinal adjustment bracket 27 is moved longitudinally in the groove of the column opening 26 under the meshing connection between the longitudinal adjustment bracket 27 and the column screw 28, so that the setting height of the screw setting plate 29 and the setting movable plate 30 for the light nail head can be adjusted.

[0042] The spacing adjustment mechanism is arranged in the screw erection plate 29 and connected to the erection movable plate 30. The spacing adjustment mechanism comprises a movable plate transverse hole 31, a spring portion 32, a transverse hole push block 33 and a push screw portion 34. The movable plate transverse hole 31 is provided on the surface of the screw erection plate 29. The transverse hole push block 33 is slidably connected in the groove of the movable plate transverse hole 31. One end of the transverse hole push block 33 is connected to the spring portion 32, and the other end of the transverse hole push block 33 is connected to the push screw portion 34. The front end of the push screw portion 34 is rotatably connected to the connection of the horizontal hole push block 33, and the other side of the push screw portion 34 extends outward through the horizontal hole 31 of the moving plate to set a handle, and the end of the spring portion 32 away from the horizontal hole push block 33 is connected to the erection moving plate 30, a part of the erection moving plate 30 extends into the horizontal hole 31 of the moving plate, and a bending portion is extended to the other side from the horizontal hole 31 of the moving plate, so that the erection moving plate 30 can stably move laterally in the groove of the horizontal hole 31 of the moving plate, and as the horizontal hole 31 of the moving plate rotates The handle is driven to make the horizontal hole push block 33 slide horizontally in the groove of the horizontal hole 31 of the moving plate, and the spring part 32 is respectively connected to the erection moving plate 30 and the horizontal hole push block 33, so the erection moving plate 30 can be pushed by the horizontal hole push block 33 and the spring part 32 to adjust the distance between the erection moving plate 30 and the horizontal plate of the screw erection plate 29, so that the erection moving plate 30 and the screw erection plate 29 can be erected with light nail heads of different radii. The side wall of the erection moving plate 30 is fixed with a trigger rod 35 to support A positioning socket portion 36 is provided on the surface of the side plate 2, a positioning rod portion 37 is inserted inside the positioning socket portion 36, a socket is provided on the top of the positioning rod portion 37, a trigger cross plate 38 is inserted at the socket, a trigger bottom socket 39 adapted to the socket is provided at the bottom of the trigger cross plate 38, the trigger cross plate 38 and the trigger rod 35 are located on the same straight line, the movable plate 30 and the screw mounting plate 29 are mounted to mount the light nail, and the light nail rotates and rolls the thread with the driving movement of the thread rolling fixed plate 3 and the thread rolling movable plate 4, and after the thread rolling is completed After that, the thread rolling fixed plate 3 and the thread rolling movable plate 4 are separated from the screws, and the erecting movable plate 30 and the screw erecting plate 29 continue to erect the screws and move, and finally the trigger rod 35 is against the front of the trigger cross plate 38, so that the trigger rod 35 cannot continue to move, and the screw erecting plate 29 continues to move a small part, so that the spacing between the erecting movable plate 30 and the screw erecting plate 29 is increased, so that the erected screws fall off naturally and fall into the feed hole 22 below, and are stored in the cavity of the screw storage bin 1. The positioning plug part 37 can be inserted into the positioning socket part 36 at different positions according to the actual use position, and the trigger bottom socket 39 can also be used to insert the socket at the top of the positioning plug part 37 for more subtle position adjustment.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A limiting mechanism for a screw thread rolling plate, include: A screw storage bin (1), a supporting side plate (2) fixedly connected to one side of the screw storage bin (1), a thread rolling fixed plate (3) reinforced and connected to the top of the screw storage bin (1) by bolts, and a thread rolling movable plate (4) arranged on the opposite side of the thread rolling fixed plate (3); It is characterized by further comprising: The screw assembly bin (12) is arranged above the screw storage bin (1), the outside of the screw assembly bin (12) is rotatably connected to a rotating disk (13), and a rotating gear block (14) is fixedly arranged on the bottom outer ring of the rotating disk (13); A rotating motor (15) is fixedly mounted on the outer wall of the screw assembly chamber (12), and an output end of the rotating motor (15) is connected to a rotating toothed disc (16) meshingly connected to the rotating toothed block (14); A screw rod connecting transverse plate (11) is fixedly arranged on the outer wall of the bottom port of the screw assembly bin (12); the other end of the screw rod connecting transverse plate (11) is connected to a displacement screw rod (10); the bottom of the screw rod connecting transverse plate (11) is fixedly connected to a reinforcement connecting column (25); a column opening (26) is provided inside the reinforcement connecting column (25); a column screw rod (28) is rotatably connected inside the column opening (26); a longitudinal adjustment support block (27) is slidably connected inside the column opening (26); and the longitudinal adjustment support block (27) is meshedly connected with the column screw rod (28); A synchronous moving block (24) is arranged on one side of the reinforcement connection column (25); a synchronous extension plate (391) is fixedly arranged on the end surface of the synchronous moving block (24) close to the reinforcement connection column (25); a longitudinal adjustment support block (27) extends to the other side through the column opening (26) and is slidably connected to the outside of the synchronous extension plate (391); A screw rod mounting plate (29) is fixedly mounted on the front end of the longitudinal adjustment bracket (27), and a mounting movable plate (30) which can be moved laterally is arranged on the surface of the screw rod mounting plate (29); The spacing adjustment mechanism is arranged in the screw rod erection plate (29) and is connected to the erection movable plate (30).

2. A limiting mechanism for a screw thread rolling plate according to claim 1, It is characterized in that A movable screw rod (5) is installed on the top of the screw storage bin (1) via a column, one end of the movable screw rod (5) is connected to a screw rod driving motor (6), and an outer engagement sleeve of the movable screw rod (5) is provided with a screw rod movable sleeve (7).

3. A limiting mechanism for a screw thread rolling plate according to claim 1, It is characterized in that The side wall of the screw rod movable sleeve (7) is plug-connected with the thread rolling movable plate (4) through an insert block, a slide groove is provided at the top of the screw storage bin (1) and located on one side of the thread rolling movable plate (4), a support bracket (8) is slidably connected in the slide groove, and a connecting screw (9) is transversely passed through the surface of the support bracket (8).

4. A limiting mechanism for a screw thread rolling plate according to claim 1, It is characterized in that An opening is provided on the surface of the supporting side plate (2) to allow the displacement screw rod (10) to be embedded, and a motor is provided at one end of the displacement screw rod (10).

5. The limiting mechanism for a screw thread rolling plate according to claim 1, It is characterized in that A limit transverse opening (19) is provided on the surface of the screw assembly bin (12), a longitudinal limit plate (20) is slidably connected in a groove of the limit transverse opening (19), and a front end of the longitudinal limit plate (20) passes through the limit transverse opening (19) and penetrates into the inner side of the tube of the screw assembly bin (12).

6. A limiting mechanism for a screw thread rolling plate according to claim 1, It is characterized in that A rotating opening portion (21) is provided on the surface of the rotating disk (13), and a sliding rod which slides along the groove of the rotating opening portion (21) is fixedly provided on the outer wall of the longitudinal limiting plate (20).

7. A limiting mechanism for a screw thread rolling plate according to claim 1, It is characterized in that An electric push rod (17) is fixedly connected to the surface of the screw assembly bin (12), an output end of the electric push rod (17) is connected to a shielding plate (18), a rectangular hole is provided on the surface of the screw assembly bin (12) to allow the shielding plate (18) to pass through horizontally, and a feed hole (22) is provided on the top of the screw storage bin (1).

8. The limiting mechanism for a screw thread rolling plate according to claim 1, It is characterized in that The spacing adjustment mechanism comprises a movable plate transverse hole (31), a spring portion (32), a transverse hole push block (33) and a pushing screw portion (34); the movable plate transverse hole (31) is arranged on the surface of the screw mounting plate (29); a transverse hole push block (33) is slidably connected in a groove of the movable plate transverse hole (31); one end of the transverse hole push block (33) is connected to the spring portion (32); and the other end of the transverse hole push block (33) is connected to the pushing screw portion (34).

9. A limiting mechanism for a screw thread rolling plate according to claim 8, It is characterized in that The front end of the push screw part (34) is rotatably connected to the connection point of the horizontal hole push block (33), and the other side of the push screw part (34) passes through the horizontal hole (31) of the movable plate to extend outward to provide a rotating handle, and one end of the spring part (32) away from the horizontal hole push block (33) is connected to the erection movable plate (30), and the top of the erection movable plate (30) is flush with the top of the screw erection plate (29).

10. A limiting mechanism for a screw thread rolling plate according to claim 9, It is characterized in that A trigger rod (35) is fixedly arranged on the side wall of the erecting movable plate (30), a positioning socket portion (36) is provided on the surface of the supporting side plate (2), a positioning rod portion (37) is inserted into the positioning socket portion (36), a socket is arranged on the top of the positioning rod portion (37), a trigger cross plate (38) is inserted into the socket, a trigger bottom socket (39) adapted to the socket is provided on the bottom of the trigger cross plate (38), and the trigger cross plate (38) and the trigger rod (35) are located on the same straight line.

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