A kind of automatic processing and production equipment of self-tapping screws and production process

Abstract

The present invention relates to the technical field of self-tapping screw production equipment, and specifically to a self-tapping screw automatic processing production equipment and production process, comprising an automatic slitting system, a real-time feeding system, a molding system, a driving system and a cooling system; the automatic slitting system, the real-time feeding system, the molding system and the cooling system are all driven by the driving system to perform collaborative movements, and respectively complete the screw blank production, screw blank transmission, screw molding and screw cooling work; the molding system comprises a station switching mechanism and a thread rolling mechanism, the station switching mechanism receives the screw blanks transmitted by the real-time feeding system one by one, and then switches the station to the thread rolling mechanism to process them into finished screw products, so that the processing efficiency and yield rate of the self-tapping screws are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of screw manufacturing equipment, and in particular to automatic processing and production equipment and a production process for self-tapping screws. Background Art

[0002] In the process of processing screw parts, the raw materials need to be cut into equal lengths, and then the end of the screw blanks needs to be formed, threaded, cooled and cleaned step by step. Generally, each step of screw processing is run independently, and some even need to be transferred and processed manually. The production process is cumbersome, the equipment occupies a large area, and also affects the processing efficiency.

[0003] The Chinese invention patent with patent number CN202210018693.1 discloses a screw processing production line and production process, which includes a frame, the frame is provided with a reeling assembly and a cutting assembly, a fixed table is provided between the reeling assembly and the cutting assembly, the fixed table is provided with a number of straightening assemblies, the straightening assembly includes a support frame, a first hydraulic cylinder, a pressure block, two connecting rods and two clamping blocks, the support frame is fixedly connected to the fixed table, the first hydraulic cylinder is fixedly connected to the support frame, the pressure block is fixedly connected to the output end of the first hydraulic cylinder, the two connecting rods are respectively hinged on both sides of the pressure block, the end of the connecting rod facing away from the pressure block is hinged to the clamping block, the fixed table is provided with a limit groove matching the clamping block, the lower end of the clamping block is located in the limit groove, and the clamping blocks are slidably connected to the limit groove.

[0004] The screw processing production line disclosed in the patent is a production line formed by connecting the equipment of various screw processing links in series, which cannot achieve the problems of saving energy consumption, space, etc. Summary of the invention

[0005] In view of the above problems, the present invention provides an automatic processing and production equipment and production process for self-tapping screws. By setting up a drive system, the automatic cutting system, real-time feeding system, forming system and cooling system are synchronously driven to achieve the coordinated cutting, feeding, forming and cooling of the screws. There is no need to integrate multiple independent devices on the production line, which ensures the degree of automation of screw production while making the equipment simple and improving efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A self-tapping screw automatic processing and production equipment, comprising:

[0008] Automatic slitting system, real-time feeding system, forming system, driving system and cooling system;

[0009] The automatic cutting system, real-time feeding system, forming system and cooling system are all driven by the driving system to perform cooperative movements, respectively completing the screw blank production, screw blank transmission, screw forming and screw cooling work;

[0010] The forming system includes a station switching mechanism, a base and a thread rolling mechanism. The station switching mechanism receives the screw blanks transmitted by the real-time feeding system one by one, and then switches the station to the thread rolling mechanism to process them into finished screw products.

[0011] As an improvement, the driving system includes a power mechanism and a linkage mechanism;

[0012] The power mechanism directly drives the station switching mechanism and the thread rolling mechanism to perform screw processing;

[0013] The linkage mechanism transmits the power of the power mechanism to the automatic cutting system, the real-time feeding system and the cooling system to assist in the screw processing and production.

[0014] As an improvement, the automatic slitting system includes a raw material carrying mechanism, a straightening and feeding mechanism, and a fixed-length cutting mechanism. The raw material carrying mechanism accommodates a steel wire coil for producing screw blanks, and the straightening and feeding mechanism straightens one end of the steel wire coil and feeds it into the fixed-length cutting mechanism.

[0015] The fixed-length cutting mechanism includes a cutter and a slideway. The linkage mechanism transmits the power of the power mechanism to the cutter for linear reciprocating motion, so that the wire coil passing through the cutter is cut into a plurality of screw blanks, and the screw blanks are discharged by sliding through the corresponding slideway.

[0016] As an improvement, the real-time feeding system includes a material storage channel and a material dividing mechanism. The material storage channel is connected to the automatic cutting system for caching screw blanks. The linkage mechanism transmits the power of the power mechanism to the material dividing mechanism for linear reciprocating motion, so that the screw blanks in the material storage channel are evenly divided one by one.

[0017] As an improvement, the material dispensing mechanism includes a containing bin and a stopper;

[0018] The accommodating bin reciprocates up and down, and when the accommodating bin is at the lower limit position, its tail portion faces the material storage channel, and the head portion of the accommodating bin is blocked by the stopper;

[0019] When the accommodating bin is at the upper limit position, the tail of the accommodating bin blocks the material storage channel, and at the same time, a distance is opened between the head of the accommodating bin and the stop plate, so that a screw blank in the accommodating bin slides out.

[0020] As an improvement, the station switching mechanism includes a plurality of molding components and a one-way rotating component evenly distributed along the circumference;

[0021] The station switching mechanism reciprocates up and down once, and the one-way rotating component rotates around the center of the circle by a certain angle, so that the molding component switches to a station position;

[0022] When the station switching mechanism moves to the lowest position, it cooperates with the base and the thread rolling mechanism to process threads on the outer wall of the screw blank and to form the screw tail head.

[0023] As an improvement, the molding assembly includes a clamping member and an elastic connecting member, the elastic connecting member connects the clamping member and the one-way rotating assembly, and the clamping member is provided with a mold cavity for molding the tail of the screw.

[0024] As an improvement, the thread rolling mechanism includes two tooth plates moving in opposite directions and a power transmission group driving the tooth plates to move. After the station switching mechanism moves downward until the screw blank enters the base, the power transmission group starts to act on the tooth plates to move and complete the thread rolling work.

[0025] The forming system further comprises a deburring mechanism, which is also driven by the power transmission group and is used to remove burrs from the surface of the formed screw. The movement of the deburring mechanism lags behind the movement of the tooth plate.

[0026] As an improvement, the deburring mechanism includes at least one gear condition, a kit and a deburring cylinder;

[0027] The gear condition is arranged in the base and can slide horizontally. The gear condition is clamped in the groove of the power transmission group through a toggle structure, and the up and down reciprocating motion of the power transmission group is converted into the horizontal reciprocating motion of the gear condition;

[0028] The kit is fixed relative to the base, and the inner wall of the kit is provided with threads;

[0029] The inner and outer walls of the deburring cylinder are both provided with threads, and the lower part of the outer wall of the deburring cylinder is provided with meshing spur teeth. The deburring cylinder is arranged in the kit in a coordinated manner. The gear conditions drive the deburring cylinder to rotate axially by meshing the meshing spur teeth. When the deburring cylinder rotates axially, it is able to move up and down relative to the kit through threaded engagement.

[0030] As an improvement, the cooling system includes a pumping body and a conduit;

[0031] The pumping body is driven by the linkage mechanism to pump outwards, and cooling liquid or cooling gas is allowed to be stored in the pumping body;

[0032] One end of the conduit is connected to the pumping body, and the other end thereof is directly opposite to the thread rolling mechanism. The conduit guides the coolant or the cooling gas to cool the screw.

[0033] A production process based on automatic processing and production equipment for self-tapping screws, comprising the following steps:

[0034] Step 1: Cutting: the automatic cutting system cuts the whole steel wire raw material into fixed lengths to form a number of screw blanks;

[0035] Step 2: Output one by one. After the cut screw blanks are transported to the real-time feeding system, the screw blanks are output one by one by the up and down reciprocating motion of the material distribution mechanism, and are transported to the forming system, and are grabbed by the station switching mechanism;

[0036] Step 3: Forming process: the station switching mechanism grabs the screw blank and transfers it to the position opposite to the thread rolling mechanism, and the driving system drives the station switching mechanism to move downward. The screw blank becomes a finished screw under the joint action of the thread rolling mechanism and the forming component; and

[0037] Step 4: Cooling treatment: After the screws are formed, they are cooled by spraying coolant or cooling gas through a cooling system; Step 5: Nail tip processing: After the screws are formed and cooled, they can enter the nail tip processing to obtain the final product of the self-tapping screws;

[0038] Wherein, when the forming system performs forming processing on the screw blank, the thread rolling mechanism first completes the thread processing of the screw, and then the forming component completes the pier head forming of the tail of the screw;

[0039] The cooling system is arranged at the molding system, and while cooling the screws, it also cools the components of the molding system.

[0040] The beneficial effects of the present invention are:

[0041] (1) The present invention sets a driving system to synchronously drive the automatic slitting system, real-time feeding system, forming system and cooling system to achieve the coordinated work of slitting, feeding, forming and cooling of screws. There is no need to integrate multiple independent devices in the production line, which ensures the automation degree of screw production while making the equipment simple and improving efficiency.

[0042] (2) The present invention completes the screw thread processing and the screw tail forming at the same workstation, thereby avoiding the positioning and accuracy problems caused by the secondary transfer of the screw and the abnormal feeding problem, so that the screw processing and production effect is stable and reliable.

[0043] In summary, the present invention has the advantages of high automation, improved efficiency, stable operation, etc., and is particularly suitable for the technical field of screw processing and forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention;

[0045] Figure 2 It is a schematic diagram of the overall axonometric structure of the present invention;

[0046] Figure 3 It is a schematic top view of the present invention as a whole;

[0047] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention;

[0048] Figure 5 It is a schematic diagram of the cutting mechanism and real-time feeding system of the present invention;

[0049] Figure 6 This is a schematic diagram of the linkage mechanism of the present invention driving the cutter and the accommodating bin to move;

[0050] Figure 7 It is a structural schematic diagram of the molding system of the present invention;

[0051] Figure 8 It is an enlarged view of point A in Figure 7;

[0052] Fig. 9 is a schematic cross-sectional view of a molding assembly of the present invention;

[0053] Fig.10 is a three-dimensional schematic diagram of a molding assembly of the present invention;

[0054] Fig.11 It is a three-dimensional schematic diagram of the thread rolling mechanism and the deburring mechanism of the present invention;

[0055] Fig.12 It is a cross-sectional schematic diagram of the deburring mechanism of the present invention;

[0056] Fig.13 It is a schematic diagram of the process flow of the present invention. DETAILED DESCRIPTION

[0057] 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.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0060] Embodiment 1:

[0061] like Figures 1 to 4 As shown, a self-tapping screw automatic processing and production equipment comprises:

[0062] Automatic slitting system 1, real-time feeding system 2, forming system 3, driving system 4 and cooling system 5;

[0063] The automatic cutting system 1, the real-time feeding system 2, the forming system 3 and the cooling system 5 are all driven by the driving system 4 to perform cooperative movements, and respectively complete the screw blank production, screw blank transmission, screw forming and screw cooling work;

[0064] The forming system 3 includes a station switching mechanism 31, a base 32 and a thread rolling mechanism 33. The station switching mechanism 31 receives the screw blanks transmitted from the real-time feeding system 2 one by one, and then switches the station to the thread rolling mechanism 33 to process them into finished screw products.

[0065] It should be noted that the present invention uses a driving system 4 to drive the remaining systems to achieve synchronous and cooperative movement of each system, avoiding the inability to synchronize in real time due to different driving forces, resulting in stagnation in screw production or waiting of the mechanism, and affecting production efficiency.

[0066] like Figures 1 to 3 As shown, further, the driving system 4 includes a power mechanism 41 and a linkage mechanism 42;

[0067] The power mechanism 41 directly drives the station switching mechanism 31 and the thread rolling mechanism 33 to perform screw processing;

[0068] The linkage mechanism 42 transmits the power of the power mechanism 41 to the automatic cutting system 1, the real-time feeding system 2 and the cooling system 5 to assist in the screw processing and production.

[0069] It should be noted that there are many types of power mechanism 41, and it is only necessary to realize the reciprocating operation of the driving mechanism, such as a piston cylinder, a crank cam mechanism, etc. The present invention adopts a crank cam mechanism to realize screw production, but is not limited to using only this crank cam mechanism.

[0070] like Figure 5 As shown, further, the automatic slitting system 1 includes a raw material carrying mechanism 11, a straightening and feeding mechanism 12, and a fixed-length cutting mechanism 13. The raw material carrying mechanism 11 accommodates a steel wire coil 14 for producing screw blanks, and the straightening and feeding mechanism 12 straightens one end of the steel wire coil 14 and feeds it into the fixed-length cutting mechanism 13;

[0071] The fixed-length cutting mechanism 13 includes a cutter 131 and a slide 132. The linkage mechanism 42 transmits the power of the power mechanism 41 to the cutter 131 for linear reciprocating motion, so that the wire roll 14 passing through the cutter 131 is cut into multiple screw blanks, and the screw blanks are discharged by sliding through the corresponding slide 132.

[0072] It should be noted that the cutter 131 can adopt the cutting mechanism as shown in the present invention, or a follow-up cutting mechanism, the purpose of which is to be able to cut the steel wire into screw blanks at equal intervals, and the slide 132 can automatically slide the screw blanks out by its gravity, so that the cutting is efficient.

[0073] Furthermore, the real-time feeding system 2 includes a material storage channel 21 and a material dividing mechanism 22. The material storage channel 21 is connected to the automatic cutting system 1 for caching screw blanks. The linkage mechanism 42 transmits the power of the power mechanism 41 to the material dividing mechanism 22 for linear reciprocating motion, so that the screw blanks in the material storage channel 21 are evenly divided one by one.

[0074] Furthermore, the material distribution mechanism 22 includes a containing bin 221 and a stopper 222;

[0075] The accommodating bin 221 reciprocates up and down. When the accommodating bin 221 is at the lower limit position, its tail portion faces the material storage channel 21, and the head portion of the accommodating bin 221 is blocked by the stopper 222.

[0076] When the accommodating bin 221 is at the upper limit position, the tail of the accommodating bin 221 blocks the material storage channel 21 , and at the same time, a distance is opened between the head of the accommodating bin 221 and the stopper 222 , so that a screw blank in the accommodating bin 221 slides out.

[0077] It should be noted that the material dividing mechanism 22 is used to output the screw blanks in the storage channel 21 one by one. Specifically, the material dividing mechanism 22 includes a accommodating bin 221 and a stop plate 222 which can be realized through the above-mentioned reciprocating motion. However, in some uncertain situations, multiple screw blanks may slide out at one time. A group of elastic pressing mechanisms can be arranged on the storage channel 21 to press the second screw blank so that the previous screw blank can be output alone. The elastic pressing mechanism can use conventional technical means, which will not be elaborated here.

[0078] like Figure 6 As shown, the accommodating bin 221 and the cutter 131 are connected as a whole through the steel member 15 and are restricted in a slot that can move up and down. The cam component 421 is rigidly connected to the rotating shaft of the linkage mechanism 42. The steel member 15 for connecting the accommodating bin 221 and the cutter 131 contacts with the cam component 421 through its own weight and can slide relatively. During the rotational movement of the linkage mechanism 42, the cam component 421 can drive the accommodating bin 221 and the cutter 131 to reciprocate up and down.

[0079] like Figures 7 and 8 As shown, further, the station switching mechanism 31 includes a plurality of molding components 311 and a one-way rotating component 312 evenly distributed along the circumference;

[0080] The station switching mechanism 31 reciprocates up and down once, and the one-way rotating component 312 rotates around the center of the circle by a certain angle, so that the molding component 311 switches to a station position;

[0081] When the station switching mechanism 31 moves to the lowest position, it cooperates with the base 32 and the thread rolling mechanism 33 to process threads on the outer wall of the screw blank and to form the screw tail head.

[0082] It should be noted that the molding component 311 includes a mold cavity for molding the tail end of the screw, which achieves the molding effect by rigidly extruding the tail end of the screw blank so that the tail end of the screw blank undergoes plastic deformation; the one-way rotating component 312 of the present invention adopts a one-way ratchet structure in conjunction with the shifting of a lever to achieve station rotation switching, and other similar mechanisms may also be used. These one-way rotating mechanisms are all conventional technical means and will not be elaborated here.

[0083] like Figures 9 to 10 As shown, further, the molding component 311 includes a clamping member 3111 and an elastic connecting member 3112, the elastic connecting member 3112 connects the clamping member 3111 and the one-way rotating component 312, and the clamping member 3111 is provided with a mold cavity 3113 for molding the tail of the screw.

[0084] It should be noted that the clamping member 3111 is configured as an elastic clamping pair. At the feeding point of the screw blank and the discharging point of the finished screw product, the clamping member 3111 contacts the rigid fixing parts and bounces open, allowing the screw blank and the finished screw product to enter and exit smoothly; the function of the elastic connecting member 3112 is to make the screw blank reach the base 32 of the forming area in advance. At this time, the power mechanism 41 drives the thread rolling mechanism 33 to perform thread processing on the screw blank, and then the elastic connecting member 3112 is compressed to the limit to rigid contact, and the mold cavity in the forming component 311 acts on the tail end of the screw blank to form the tail end.

[0085] It should also be noted that the clamping member 3111 can use magnetic suction to absorb the screw blank or a clip with friction to clamp the screw blank. Since the outer wall of the screw blank is cylindrical, the contact part between the clamping member 3111 and the screw blank is set to an arc shape whose inner wall matches the outer wall of the screw blank. After the screw blank is clamped, it can rotate relatively in the clamping member 3111, which is conducive to the thread rolling work.

[0086] like Figure 8 , 11 As shown, further, the thread rolling mechanism 33 includes two tooth plates 331 moving in opposite directions and a power transmission group 332 driving the tooth plates 331 to move. After the station switching mechanism 31 moves downward until the screw blank enters the base 32, the power transmission group 332 starts to act on the tooth plates 331 to complete the thread rolling work;

[0087] The forming system 3 further includes a deburring mechanism 34 , which is also driven by the power transmission group 332 to remove burrs from the surface of the formed screw. The movement of the deburring mechanism 34 lags behind the movement of the tooth plate 331 .

[0088] It should be noted that the screws are formed through thread rolling and extrusion at the ends, and burrs are easily generated after the metal is stretched, which can easily affect the use and make it difficult to screw into objects. The deburring mechanism can remove burrs at the same time as the screws are formed, which can completely eliminate the adverse effects and there will be no problem of increased defective rate due to omissions in subsequent burr removal.

[0089] In addition, the tooth plate 331 is provided with an air avoidance area. After the tooth plate 331 moves horizontally to process the threads on the surface of the screw, the screw can be in the air avoidance area of ​​the tooth plate 331, and the space can be left for the deburring mechanism 34 to remove burrs from the screw; the outside of the power transmission group 332 is provided with a guide member 333 with a vertical sliding groove, and the guide member 333 can constrain the vertical up and down movement of the power transmission group 332, and the guide member 333 is used to withstand the lateral reaction force transmitted from the power transmission group 332 during the thread rolling process.

[0090] like Fig.12As shown, further, the deburring mechanism 34 includes at least one gear condition 341, a set 342 and a deburring cylinder 343;

[0091] The gear condition 341 is disposed in the base 32 and can slide horizontally. The gear condition 341 is clamped in the groove of the power transmission group 332 through a toggle structure, and the up and down reciprocating motion of the power transmission group 332 is converted into the horizontal reciprocating motion of the gear condition 341.

[0092] The sleeve 342 is fixed relative to the base 32, and the inner wall of the sleeve 342 is provided with threads;

[0093] The inner and outer walls of the deburring cylinder 343 are both provided with threads, and the lower part of the outer wall of the deburring cylinder 343 is provided with meshing spur teeth 3431. The deburring cylinder 343 is arranged in the kit 342. The gear condition 341 drives the deburring cylinder 343 to rotate axially by meshing with the meshing spur teeth 3431. When the deburring cylinder 343 rotates axially, it is lifted and lowered relative to the kit 342 through threaded engagement.

[0094] It should be noted that the inner wall thread of the deburring cylinder 343 matches the processed screw thread, and through the threading work, the outer surface of the screw is free of burrs, making it smooth and smooth to use; in addition, the top of the deburring cylinder 343 is provided with a flat step for abutting against the formed screw shoulder, which is more conducive to the shaping of the screw shape, and a cylindrical cutting knife structure can also be set around the outer circle of the flat step to remove the burrs on the outer edge of the screw shoulder.

[0095] Furthermore, the cooling system 5 includes a pumping body 51 and a conduit 52;

[0096] The pumping body 51 is driven by the linkage mechanism 42 to pump outwards, and the pumping body 51 allows the storage of cooling liquid or cooling gas;

[0097] One end of the conduit 52 is connected to the pumping body 51 , and the other end thereof is directly opposite to the thread rolling mechanism 33 . The conduit 52 guides the coolant or the cooling gas to cool the screw.

[0098] Embodiment 2:

[0099] like Fig.13 As shown, a production process of a self-tapping screw automatic processing production equipment includes the following steps:

[0100] Step 1: Cutting: the automatic cutting system 1 cuts the whole steel wire raw material into fixed lengths to form a number of screw blanks;

[0101] Step 2: Output one by one. After the cut screw blanks are transported to the real-time feeding system 2, the screw blanks are output one by one by the up and down reciprocating motion of the material distribution mechanism 22 and transported to the forming system 3, and are grabbed by the station switching mechanism 31;

[0102] Step 3: Forming process: the station switching mechanism 31 grabs the screw blank and transfers it to the position opposite to the thread rolling mechanism 33; the driving system 4 drives the station switching mechanism 31 to move downward; the screw blank becomes a finished screw under the joint action of the thread rolling mechanism 33 and the forming assembly 311; and

[0103] Step 4: Cooling treatment: After the screw is formed, the cooling system 5 sprays cooling liquid or cooling gas to cool it down;

[0104] Step 5: nail tip processing: after forming and cooling, the screw can enter the nail tip processing to obtain the final product of the self-tapping screw;

[0105] When the forming system 3 forms the screw blank, the thread rolling mechanism 33 first completes the thread processing of the screw, and then the forming component 311 completes the head forming of the screw tail;

[0106] The cooling system 5 is arranged at the molding system 3 , and cools the components of the molding system 3 while cooling the screws.

[0107] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-tapping screw automatic processing and production equipment, characterized in that: include: Automatic slitting system (1), real-time feeding system (2), forming system (3), driving system (4) and cooling system (5); The automatic slitting system (1), the real-time feeding system (2), the forming system (3) and the cooling system (5) are all driven by the driving system (4) to perform cooperative movements, and respectively complete the screw blank production, screw blank transmission, screw forming and screw cooling tasks; The forming system (3) comprises a station switching mechanism (31), a base (32) and a thread rolling mechanism (33); the station switching mechanism (31) receives the screw blanks transmitted by the real-time feeding system (2) one by one, and then switches the station to the thread rolling mechanism (33) to process them into finished screw products; The driving system (4) comprises a power mechanism (41) and a linkage mechanism (42); The power mechanism (41) directly drives the workstation switching mechanism (31) and the thread rolling mechanism (33) to perform screw processing; The linkage mechanism (42) transmits the power of the power mechanism (41) to the automatic slitting system (1), the real-time feeding system (2) and the cooling system (5) to assist in screw processing and production; The automatic slitting system (1) comprises a material carrying mechanism (11), a straightening and feeding mechanism (12), and a fixed-length cutting mechanism (13); the material carrying mechanism (11) accommodates a steel wire coil (14) for producing a screw blank; the straightening and feeding mechanism (12) straightens one end of the steel wire coil (14) and feeds the straightened and fed end into the fixed-length cutting mechanism (13); The fixed-length cutting mechanism (13) comprises a cutter (131) and a slideway (132); the linkage mechanism (42) transmits power from the power mechanism (41) to the cutter (131) to perform linear reciprocating motion, so that the wire coil (14) passing through the cutter (131) is cut into a plurality of screw blanks, and the screw blanks are discharged by sliding through the corresponding slideway (132); The real-time feeding system (2) comprises a material storage channel (21) and a material distribution mechanism (22); the material storage channel (21) is connected to the automatic cutting system (1) for caching screw blanks; the linkage mechanism (42) transmits the power of the power mechanism (41) to the material distribution mechanism (22) for linear reciprocating motion, so that the screw blanks in the material storage channel (21) are evenly distributed one by one; The workstation switching mechanism (31) comprises a plurality of molding components (311) and a one-way rotating component (312) evenly distributed along the circumference; The workstation switching mechanism (31) reciprocates up and down once, and the one-way rotating component (312) completes a certain angle rotation around the center of the circle, so that the molding component (311) switches to a workstation position; When the workstation switching mechanism (31) moves to the lowest position, it cooperates with the base (32) and the thread rolling mechanism (33) to process threads on the outer wall of the screw blank and to form a screw tail head; The thread rolling mechanism (33) comprises two tooth plates (331) moving in opposite directions and a power transmission group (332) driving the tooth plates (331) to move. After the workstation switching mechanism (31) moves downward until the screw blank enters the base (32), the power transmission group (332) starts to act on the tooth plates (331) to move, thereby completing the thread rolling work.

2. The automatic processing and production equipment for self-tapping screws according to claim 1 is characterized in that: The material distribution mechanism (22) comprises a containing bin (221) and a stopper (222); The accommodating bin (221) reciprocates up and down, and when the accommodating bin (221) is at the lower limit position, its rear end faces the material storage channel (21), and the head of the accommodating bin (221) is blocked by the stopper (222); When the accommodating bin (221) is at the upper limit position, the tail of the accommodating bin (221) blocks the material storage channel (21), and at the same time, a distance is created between the head of the accommodating bin (221) and the stopper (222), so that a screw blank in the accommodating bin (221) slides out.

3. The automatic processing and production equipment for self-tapping screws according to claim 1 is characterized in that: The molding component (311) comprises a clamping member (3111) and an elastic connecting member (3112), wherein the elastic connecting member (3112) connects the clamping member (3111) and the one-way rotating component (312), and the clamping member (3111) is provided with a mold cavity (3113) for molding the tail of the screw.

4. The automatic processing and production equipment for self-tapping screws according to claim 1 is characterized in that: The forming system (3) further comprises a deburring mechanism (34), which is also driven by the power transmission group (332) to remove burrs from the surface of the formed screw, and the movement of the deburring mechanism (34) lags behind the movement of the tooth plate (331).

5. The automatic processing and production equipment for self-tapping screws according to claim 4 is characterized in that: The deburring mechanism (34) comprises at least one gear member (341), a kit (342) and a deburring cylinder (343); The gear condition (341) is arranged in the base (32) and can slide horizontally, the gear condition (341) is clamped in the groove of the power transmission group (332) through a toggle structure, and the up and down reciprocating motion of the power transmission group (332) is converted into the horizontal reciprocating motion of the gear condition (341); The sleeve (342) is fixed relative to the base (32), and the inner wall of the sleeve (342) is provided with threads; The inner and outer walls of the deburring cylinder (343) are both provided with threads, and the lower part of the outer wall of the deburring cylinder (343) is provided with meshing spur teeth (3431). The deburring cylinder (343) is arranged in the kit (342) in a coordinated manner. The gear condition (341) drives the deburring cylinder (343) to rotate axially by meshing with the meshing spur teeth (3431). When the deburring cylinder (343) rotates axially, it is able to move up and down relative to the kit (342) through threaded engagement.

6. A production process for the automatic processing and production equipment for self-tapping screws according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: Cutting: the automatic cutting system (1) cuts the whole steel wire raw material into fixed lengths to form a number of screw blanks; Step 2: Outputting the cut screw blanks one by one, after which they are transported to the real-time feeding system (2), the up-and-down reciprocating motion of the material distribution mechanism (22) outputs the screw blanks one by one, and transports them to the forming system (3), where they are grabbed by the station switching mechanism (31); Step three, forming processing, the station switching mechanism (31) grabs the screw blank and transfers it to a position facing the thread rolling mechanism (33), the driving system (4) drives the station switching mechanism (31) to move downward, and the screw blank becomes a finished screw under the joint action of the thread rolling mechanism (33) and the forming component (311); and Step 4: Cooling treatment: After the screw has been formed, the cooling system (5) sprays cooling liquid or cooling gas to cool the screw; Step 5: nail tip processing: after forming and cooling, the screw can enter the nail tip processing to obtain the final product of the self-tapping screw; Wherein, when the forming system (3) performs forming processing on the screw blank, the thread rolling mechanism (33) first completes the thread processing of the screw, and then the forming component (311) completes the forming of the head at the tail of the screw; The cooling system (5) is arranged at the molding system (3), and while cooling the screws, it also cools the components of the molding system (3).

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