A winding stator core production line equipment

Abstract

The present invention discloses a winding stator core production line equipment, including a raw steel strip coil placement rack, a steel strip leveling machine, a strip blanking device, a strip winding machine, a press-fit welding device and a pre-finished core shaping device, and the raw steel strip coil placement rack, the steel strip leveling machine, the strip blanking device, the strip winding machine, the press-fit welding device and the pre-finished core shaping device are arranged in sequence from left to right, and a strip buffer zone is arranged between the strip blanking device and the strip winding machine; the strip winding machine includes a frame, a mounting base plate is detachably provided on the frame, a base is detachably provided on the mounting base plate, a material guide frame is provided on one end of the base, and a forming device, a side pressure wheel and a scissors device are provided on the base. The above technical scheme has reasonable structural design, simple structure, convenient use, reliable operation, low manufacturing cost, high work efficiency, easy to realize automated production, and good practicality.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment, and in particular to a winding stator core production line equipment. Background Art

[0002] With the progress and development of society, international energy problems are becoming more and more severe, steel prices are rising, and material cost control has become one of the main ways for the manufacturing industry to reduce production costs. Especially when the process technology of the two competing parties is comparable and the market share is unclear, price competition basically dominates the market share. In order to better win a larger market share, it is necessary to reduce production costs while ensuring quality.

[0003] The stator core is an important component of the motor and also an important component of the motor cost. The stator core process not only affects the performance of the motor, but also affects the production cost of the motor.

[0004] There are various processing equipments for stator cores, including equipments manufactured by straight strip splicing process, equipments manufactured by traditional process, equipments manufactured by long strip buckling winding process, equipments manufactured by short arc strip splicing process, etc. However, these existing stator core manufacturing equipments still have many disadvantages such as unreasonable structural design, complex processing technology, many processes, low working efficiency, high labor cost, difficulty in realizing automated production, etc., and poor practicality. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a winding stator core production line equipment with reasonable structural design, simple structure, easy use, reliable operation, low manufacturing cost, high working efficiency and easy to realize automated production.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a winding stator core production line equipment, including a raw steel strip roll placement rack, and also including a steel strip leveling machine, a strip punching device, a strip winding machine, a press-fit welding equipment and a pre-finished product core shaping equipment, and the raw steel strip roll placement rack, the steel strip leveling machine, the strip punching device, the strip winding machine, the press-fit welding equipment and the pre-finished product core shaping equipment are arranged in sequence from left to right, and a strip buffer zone is arranged between the strip punching device and the strip winding machine.

[0007] The present invention is further configured as follows: the strip winding machine includes a frame, a mounting base is detachably provided on the frame, a base is detachably provided on the mounting base, a material guide frame is provided at one end of the base, a forming device, a side pressure wheel disc and a scissors device are provided on the base, a feeding device is provided between the forming device and the material guide frame, and the side pressure wheel disc and the scissors device are respectively provided close to the forming device.

[0008] The present invention is further configured as follows: the molding device comprises a molding base plate, a molding cover plate, a spindle core barrel and a clamping gasket, and the molding base plate, the molding cover plate, the spindle core barrel and the clamping gasket together form a molding channel.

[0009] The present invention is further configured as follows: a lifting tray is provided at the upper end of the forming cover plate, a spiral climbing channel is provided between the forming cover plate and the lifting tray, and a scissor head of the scissor device is provided between the forming cover plate and the lifting tray.

[0010] The present invention is further configured as follows: the scissors device includes a scissors body, a scissors seat and a first cylinder, the scissors body is installed on the scissors seat, the scissors seat is detachably connected to the upper end surface of the base, the first cylinder is installed on the upper end surface of the mounting base, and the piston rod of the first cylinder is connected to the end of the scissors body away from the forming device, and the scissors head of the scissors body is driven to move by the extension and retraction of the piston rod of the first cylinder.

[0011] The present invention is further configured as follows: a first base cavity and a second base cavity are provided in the base, a first through-axis hole is provided on the mounting base plate aligned with the first base cavity, and a second through-axis hole is provided on the mounting base plate aligned with the second base cavity.

[0012] The present invention is further configured as follows: a secondary shaft is passed through the first base cavity, a secondary shaft bearing seat, a secondary shaft bearing end cover, a secondary shaft plastic gasket and a secondary shaft tapered roller bearing are sleeved on the middle part of the secondary shaft, the lower end of the secondary shaft passes through the first shaft hole, and a secondary shaft driving device is arranged on the section of the secondary shaft exposed from the first shaft hole, the upper end of the secondary shaft exposed from the first base cavity section is sleeved with a side pressure wheel disc, and the section of the secondary shaft exposed from the side pressure wheel disc is sleeved with a first nut gasket and a first fixing nut in sequence from bottom to top, and the first nut gasket is locked by the first fixing nut.

[0013] The present invention is further configured as follows: a main shaft is passed through the second base cavity, the lower end of the main shaft is passed through the second shaft through hole, and a main shaft driving device is provided on the main shaft exposed from the second shaft through hole, and the main shaft is provided with a locking nut, a main shaft sleeve, a main shaft tapered roller bearing and a needle disk in sequence from bottom to top, the main shaft tapered roller bearing outer sleeve is provided with a main shaft bearing seat, the upper end of the main shaft bearing seat is provided with a flat cam disk, the main shaft bearing seat and the flat cam disk are fixed on the base from bottom to top by screws, a positioning pin hole is provided on the flat cam disk, the upper end of the main shaft is connected and fixed to the main shaft core cylinder by screws, the main shaft and the needle disk are connected and fixed by screws, the needle disk is provided with a driving pin, a reset spring, a needle disk locking plate and a needle disk sliding groove, the reset spring is sleeved on the driving pin, a locking plate screw is passed through the needle disk locking plate, and the driving pin is fixed in the needle disk sliding groove by the locking plate screw and the needle disk locking plate.

[0014] The present invention is further configured as follows: the clamping gasket is arranged between the molding base plate and the molding cover plate, the molding base plate, the molding cover plate and the clamping gasket are connected and fixed by screws, the molding base plate and the upper end surface of the base are connected and fixed by screws; the base and the upper end surface of the mounting base are connected and fixed by screws.

[0015] The present invention is further configured as follows: a second cylinder is provided at one end of the lifting tray, a piston rod of the second cylinder is connected to the lifting tray, and the lifting tray is driven to rise and fall by the extension and retraction of the piston rod of the second cylinder.

[0016] The present invention is further configured as follows: the rotation speeds of the main shaft and the secondary shaft are the same; drive scheme 1: the main shaft and the secondary shaft are driven by the same motor, the main shaft and the secondary shaft are driven by a gear pair, and the transmission gear ratio is 1:1; or a synchronous belt drive is used, the main shaft, the secondary shaft and the motor shaft are connected by a synchronous belt, and a tensioning device is provided; drive scheme 2: dual power source drive is used, and the main shaft and the secondary shaft are driven by motors respectively.

[0017] The advantages of the present invention are: compared with the prior art, the structure of the present invention is more reasonable:

[0018] First, place the raw steel strip coil on the raw steel strip coil placement rack, lead the strip end to the steel strip leveling machine, and the leveled steel strip enters the punch feed port of the strip punching device, and then punches. After punching, the toothed strip enters the strip buffer, and then is wound and formed by the strip winding machine. After reaching the set number of turns, it is automatically shortened. The cut spiral strip is placed in the pressure welding equipment for correction, riveting, and welding, and the initial processing of the stator core is completed. Due to the dimensional accuracy and performance requirements of the stator core, such products need to be further shaped, and the initial finished product is placed in the shaping equipment for finishing, and finally through rust prevention treatment, the process is completed, and the stator core is obtained. In addition, during the blanking process, the blanking die can be designed as a multi-strip blanking die to improve production capacity and efficiency; since the current stator core commonly uses steel strip materials with a thickness less than or equal to 1mm, the required blanking pressure is small, and the width of the formed toothed strip is not large through the winding process, which makes it possible to blank multiple strips together. After the strip buffer, multiple winding machines can be connected for simultaneous winding, which will achieve a significant increase in production efficiency and capacity. The entire winding stator core production line has a reasonable structural design, simple structure, convenient manufacturing, reliable operation, low manufacturing cost, high work efficiency, and can realize automated production, and has good practicality.

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0021] Figure 2 It is a structural schematic diagram of a strip winding machine according to an embodiment of the present invention;

[0022] Figure 3 It is a partial cross-sectional schematic diagram of a strip winding machine according to an embodiment of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of a forming cover plate of a strip winding machine according to an embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of a lifting tray of a strip winding machine according to an embodiment of the present invention;

[0025] Figure 6 It is a structural schematic diagram of a planar cam disc of a strip winding machine according to an embodiment of the present invention;

[0026] Figure 7 It is a schematic diagram of the tape stacking of the tape winding machine according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In the description of this embodiment, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore, cannot be understood as limiting the present invention. In addition, if the terms "first", "second", and "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] See also Figures 1 to 7 The present invention discloses a winding stator core production line equipment, including a raw steel strip coil placement rack 100, and also includes a steel strip leveling machine 200, a strip punching device 300, a strip winding machine 400, a press-fit welding device 500 and a pre-finished product core shaping device 600, and the raw steel strip coil placement rack 100, the steel strip leveling machine 200, the strip punching device 300, the strip winding machine 400, the press-fit welding equipment 500 and the pre-finished product core shaping equipment 600 are arranged from left to right in sequence, and a strip buffer zone 700 is arranged between the strip punching device 300 and the strip winding machine 400.

[0029] Preferably, the strip buffer 700 is a deep pit structure, and after being punched by the strip punching device, the two toothed strips enter the strip buffer to prepare for strip winding. The main purpose is to solve the problem of asynchronous operation between the strip punching device and the strip winding machine.

[0030] The strip winding machine 400 includes a frame 1, on which a mounting base 2 is detachably provided, on which a base 3 is detachably provided, a material guide frame 4 is provided at one end of the base 3, on which a forming device 5, a side pressure wheel disc 6 and a scissors device 7 are provided, a feeding device 8 is provided between the forming device 5 and the material guide frame 4, and the side pressure wheel disc 6 and the scissors device 7 are respectively provided close to the forming device 5.

[0031] Preferably, the frame 1 and the mounting base plate 2 are connected and fixed by existing bolts; the mounting base plate 2 and the base 3 are connected and fixed by existing bolts.

[0032] In order to make the structural arrangement of the present invention more reasonable, it is preferred that the molding device 5 described in this embodiment includes a molding base plate 51, a molding cover plate 52, a main shaft core barrel 53 and a clamping gasket 54, and the molding base plate 51, the molding cover plate 52, the main shaft core barrel 53 and the clamping gasket 54 together constitute a molding channel 55.

[0033] A lifting tray 9 is disposed at the upper end of the forming cover plate 52 , a spiral climbing channel 91 is disposed between the forming cover plate 52 and the lifting tray 9 , and a scissor head of the scissor device 7 is disposed between the forming cover plate 52 and the lifting tray 9 .

[0034] The scissors device 7 includes a scissors body 71, a scissors seat 72 and a first cylinder 73. The scissors body 71 is installed on the scissors seat 72. The scissors seat 72 is detachably connected to the upper end surface of the base 3. The first cylinder 73 is installed on the upper end surface of the mounting base 2, and the piston rod of the first cylinder 73 is connected to the end of the scissors body 71 away from the molding device. The scissors head of the scissors body 71 is driven to move by the extension and retraction of the piston rod of the first cylinder 73.

[0035] The base 3 is provided with a first base cavity 31 and a second base cavity 32 , the mounting base plate 2 is provided with a first through-axis hole 21 aligned with the first base cavity 31 , and the mounting base plate 2 is provided with a second through-axis hole 22 aligned with the second base cavity 32 .

[0036] A secondary shaft 10 is passed through the first base cavity 31, and a secondary shaft bearing seat 11, a secondary shaft bearing end cover 12, a secondary shaft plastic gasket 13 and a secondary shaft tapered roller bearing 14 are sleeved in the middle of the secondary shaft 10. The lower end of the secondary shaft 10 passes through the first shaft hole 21, and a secondary shaft driving device is provided in the first shaft hole section exposed at the lower end of the secondary shaft 10. The side pressure wheel disc 6 is sleeved on the upper end of the secondary shaft 10 exposed at the first base cavity section, and the first nut gasket 15 and the first fixing nut 16 are sequentially sleeved on the side pressure wheel disc section exposed at the upper end of the secondary shaft 10 from bottom to top, and the first nut gasket 15 is locked by the first fixing nut 16. Preferably, the side pressure wheel disc 6 is fixed on the shoulder of the secondary shaft 10 by means of a first nut gasket 15 and a first fixing nut 16; the secondary shaft 10, the secondary shaft tapered roller bearing 14 and the secondary shaft bearing seat 11 are connected as an integral structure and fixed by means of a secondary shaft bearing end cover 12; the secondary shaft 10 is driven to rotate by an external force, the secondary shaft bearing seat 11 is positioned by means of the positioning hole, and is fixed to the base 3 with screws.

[0037] A main shaft 17 is passed through the second base cavity 32, and the lower end of the main shaft 17 is arranged through the second shaft hole 22, and a main shaft driving device is arranged on the main shaft 17 exposed from the second shaft hole. The main shaft 17 is provided with a locking nut 18, a main shaft sleeve 19, a main shaft tapered roller bearing 20 and a needle plate 23 in sequence from bottom to top. The main shaft tapered roller bearing 20 is provided with a main shaft bearing seat 24 on the outer sleeve, and a flat cam plate 25 is provided on the upper end of the main shaft bearing seat 24. The main shaft bearing seat 24 and the flat cam plate 25 are fixed on the base 3 from bottom to top by screws. The planar cam disk 25 is provided with a positioning pin hole, the upper end of the main shaft 17 is fixed to the main shaft core tube 53 by screws, the main shaft 17 is fixed to the needle disk 23 by screws, the needle disk 23 is provided with a driving pin 26, a reset spring 27, a needle disk locking plate 28 and a needle disk slide groove 231, the reset spring 27 is sleeved on the driving pin 26, the needle disk locking plate 28 is penetrated by a locking plate screw, the driving pin 26 is fixed in the needle disk slide groove 231 by the locking plate screw and the needle disk locking plate 28, the whole part is connected as a whole, and the main shaft 17 is driven to rotate by external force. Preferably, a positioning pin hole is provided on the planar cam disc 25 to accurately locate the climbing position of the driving pin 26; the anti-wrinkling clamping plate is composed of a molding base plate 51 and a molding cover plate 52, and a clamping gasket 54 is sandwiched between the molding base plate 51 and the molding cover plate 52. The gap between the two clamping plates, that is, the gap between the molding base plate 51 and the molding cover plate 52, can be adjusted according to the thickness of the clamping gasket 54.

[0038] The clamping gasket 54 is arranged between the molding base plate 51 and the molding cover plate 52. The molding base plate 51, the molding cover plate 52 and the clamping gasket 54 are connected and fixed by screws. The molding base plate 51 and the upper end surface of the base 3 are connected and fixed by screws; the base 3 and the upper end surface of the mounting base plate 2 are connected and fixed by screws.

[0039] A second cylinder 29 is provided at one end of the lifting tray 9 , and a piston rod of the second cylinder 29 is connected to the lifting tray 9 , and the lifting tray 9 is lifted and lowered by the extension and retraction of the piston rod of the second cylinder 29 .

[0040] The main shaft 17 and the secondary shaft 10 have the same rotation speed. Preferably, the power source of this embodiment is a servo motor, which can be driven in three ways:

[0041] (1) Single power source drive: The servo motor drives the main shaft 17, and the main shaft 17 and the secondary shaft 10 are meshed with the existing gear pair. The transmission gear ratio is 1, and the transmission gear can be a spur gear, a helical gear or a bevel gear;

[0042] (2) Use double-sided synchronous belt drive: the motor shaft, the main shaft 17 and the secondary shaft 10 are connected by a synchronous belt, and a tensioning device is provided;

[0043] (3) Dual power drive: dual power sources are used to drive the main shaft 17 and the secondary shaft 10 respectively, that is, the main shaft drive device at the lower end of the main shaft 17 is a motor, and the secondary shaft drive device at the lower end of the secondary shaft 10 is a motor.

[0044] Regardless of the driving method used above, the main shaft 17 and the secondary shaft 10 must have the same rotation speed.

[0045] In addition, the steel strip roll placement rack of the present embodiment includes an axial fixing frame, a guide wheel, a load-bearing device and a rolling shaft, etc. A rolling bearing is arranged between the load-bearing device and the rolling shaft, and the load-bearing device can adjust its own outer diameter and can rotate freely; when the steel strip leveling machine is working, the steel strip placement rack ensures that the steel strip enters the leveling machine smoothly and orderly.

[0046] Steel strip leveling machine: including a leveling device, a through-beam sensor and a steel strip feeding channel, etc. The through-beam sensor controls the leveling feeding process of the steel strip leveling device, including controlling the leveling feeding timing and feeding speed; the leveling device leveling the deformed steel strip pulled out from the raw steel strip coil placement rack;

[0047] Strip blanking device: including high-speed punching machine, steel strip feeder and blanking die. The steel strip feeder controls the blanking feeding speed. The high-speed punching machine drives the blanking die to blank the strip. By replacing the blanking die, the steel strip can be blanked into strips with different tooth shapes.

[0048] Strip winding machine: Wind one or more straight toothed strips after punching into spiral strips, and stack them on the lifting tray. When the spiral strip reaches the set number of turns, it will be automatically cut off;

[0049] Press-fit welding equipment: When the spiral strip reaches the set number of turns, it is automatically cut off, the spiral strip is removed, and the wound spiral strip is corrected, riveted and welded;

[0050] The equipment for shaping the primary finished product core includes a stripping plate, a stripping push rod, an upper die, a lower die, a shaping fixed column and a hydraulic press. First, the initially formed stator core is put on the shaping fixed column, and the hydraulic press is started to press the stator core into the lower die. The core is extruded and deformed, and the tooth notches are shaped to be neat. After the upper die is detached, the stripping push rod pushes the stripping plate to remove the stator core.

[0051] The strip forming process of this embodiment: the straight strip material formed by punching enters the feed slot through the guide frame, and the straight strip material enters the forming groove at a position tangent to the side pressure wheel disc and the forming groove. When the strip material continues to enter the upper surface of the forming bottom plate, the motor drives the main shaft and the secondary shaft to rotate. Since the needle disk and the main shaft are connected as a whole by screws, the needle disk also rotates with the main shaft, and the lower end of the driving pin contacts the upper surface of the flat cam disk; the driving pin is fixed in the needle disk by the needle disk locking plate, so the driving pin is in the needle disk. The belt is driven by a force that causes the belt to rotate together under the driving force. When it reaches the climbing surface position of the flat cam disc, the reset spring begins to be compressed, and the driving pin rises and fits into the toothed belt material groove, driving the straight strip material into the forming groove. The forming groove is composed of a forming base plate, a forming cover plate, a main shaft core barrel and a clamping gasket. The main shaft core barrel and the side pressure wheel plate fix the belt material on the left and right. At the same time, the friction force between the side pressure wheel plate and the main shaft core barrel continues to drive the belt material to advance the forming. The forming base plate and the forming cover plate clamp the belt material to prevent the belt material from becoming unstable and wrinkling. The strip is formed under the multiple effects of the pulling force of the driving pin, the friction between the side pressure wheel and the main shaft core barrel, and the forming groove; after forming, the driving pin continues to rotate in a circle. When the driving pin reaches the descending surface of the flat cam disc, the reset spring will push the driving pin back into the needle disc slide groove, and the strip continues to climb along the spiral groove and finally coils on the lifting tray. When the set number of circles is reached, the first cylinder pushes the scissors device to cut it off, and the second cylinder lifts the lifting tray to unload the spiral strip, and the strip forming process is completed.

[0052] In actual application, the raw steel strip coil is first placed on the raw steel strip coil placement rack, and the strip end is led to the steel strip leveling machine. The flattened steel strip enters the punch feed port of the strip punching device, and then punches. After punching, the toothed strip enters the strip buffer, and then is wound and formed by the strip winding machine. After reaching the set number of turns, it is automatically cut off. The cut spiral strip is placed in the pressure welding equipment for correction, riveting, and welding, and the preliminary processing of the stator core is completed. Due to the dimensional accuracy and performance requirements of the stator core, such products need to be further shaped, and the initial finished product is placed in the shaping equipment for finishing, and finally through rust prevention treatment, the process is completed, and the stator core is obtained. In addition, during the blanking process, the blanking die can be designed as a multi-strip blanking die to improve production capacity and efficiency; since the current stator core commonly uses steel strip materials with a thickness less than or equal to 1mm, the required blanking pressure is small, and the width of the formed toothed strip is not large through the winding process, which makes it possible to blank multiple strips together. After the strip buffer, multiple winding machines can be connected for simultaneous winding, which will achieve a significant increase in production efficiency and capacity. The entire winding stator core production line has a reasonable structural design, simple structure, convenient manufacturing, reliable operation, low manufacturing cost, high work efficiency, and can realize automated production, and has good practicality.

[0053] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A winding stator core production line equipment, comprising a raw steel strip coil placement rack (100), characterized in that: It also includes a steel strip leveler (200), a strip blanking device (300), a strip winding machine (400), a press-fit welding device (500) and a pre-finished product iron core shaping device (600), and the raw steel strip coil placement rack (100), the steel strip leveler (200), the strip blanking device (300), the strip winding machine (400), the press-fit welding device (500) and the pre-finished product iron core shaping device (600) are arranged in sequence from left to right, and a strip buffer zone (700) is arranged between the strip blanking device (300) and the strip winding machine (400); The strip winding machine (400) comprises a frame (1), a mounting base plate (2) is detachably provided on the frame (1), a base (3) is detachably provided on the mounting base plate (2), a material guide frame (4) is provided at one end of the base (3), a forming device (5), a side pressure wheel disc (6) and a scissor device (7) are provided on the base (3), a feeding device (8) is provided between the forming device (5) and the material guide frame (4), and the side pressure wheel disc (6) and the scissor device (7) are respectively provided close to the forming device (5); The molding device (5) comprises a molding base plate (51), a molding cover plate (52), a main shaft core barrel (53) and a clamping gasket (54), and the molding base plate (51), the molding cover plate (52), the main shaft core barrel (53) and the clamping gasket (54) together form a molding channel (55); A lifting tray (9) is arranged at the upper end of the forming cover plate (52), a spiral climbing channel (91) is arranged between the forming cover plate (52) and the lifting tray (9), and a scissor head of the scissor device (7) is arranged between the forming cover plate (52) and the lifting tray (9); The base (3) is provided with a first base cavity (31) and a second base cavity (32); the mounting base plate (2) is provided with a first shaft-penetrating hole (21) aligned with the first base cavity (31); and the mounting base plate (2) is provided with a second shaft-penetrating hole (22) aligned with the second base cavity (32); A main shaft (17) is inserted into the second base cavity (32), the lower end of the main shaft (17) is inserted through the second shaft hole (22), and a main shaft driving device is arranged in the section of the main shaft (17) exposed from the second shaft hole. The main shaft (17) is provided with a locking nut (18), a main shaft sleeve (19), a main shaft tapered roller bearing (20) and a needle plate (23) in sequence from bottom to top. The main shaft tapered roller bearing (20) is provided with a main shaft bearing seat (24) on the outer sleeve, and a flat cam plate (25) is provided on the upper end of the main shaft bearing seat (24). The main shaft bearing seat (24) and the flat cam plate (25) are screwed from the bottom to the top. The needle plate (23) is fixed on the base (3), the plane cam plate (25) is provided with a positioning pin hole, the upper end of the main shaft (17) is connected and fixed to the main shaft core tube (53) by screws, the main shaft (17) is connected and fixed to the needle plate (23) by screws, the needle plate (23) is provided with a driving pin (26), a return spring (27), a needle plate locking plate (28) and a needle plate sliding groove (231), the return spring (27) is sleeved on the driving pin (26), the needle plate locking plate (28) is penetrated with a locking plate screw, and the driving pin (26) is fixed in the needle plate sliding groove (231) by the locking plate screw and the needle plate locking plate (28); A second cylinder (29) is provided at one end of the lifting tray (9); a piston rod of the second cylinder (29) is connected to the lifting tray (9); and the lifting tray (9) is driven to rise and fall by the extension and retraction of the piston rod of the second cylinder (29).

2. The winding stator core production line equipment according to claim 1, characterized in that: The scissor device (7) comprises a scissor body (71), a scissor seat (72) and a first cylinder (73); the scissor body (71) is mounted on the scissor seat (72); the scissor seat (72) is detachably connected to the upper end surface of the base (3); the first cylinder (73) is mounted on the upper end surface of the mounting base (2); the piston rod of the first cylinder (73) is connected to the end of the scissor body (71) away from the molding device; the scissor head of the scissor body (71) is driven to move by the extension and retraction of the piston rod of the first cylinder (73).

3. The winding stator core production line equipment according to claim 2 is characterized in that: A secondary shaft (10) is inserted into the first base cavity (31), and a secondary shaft bearing seat (11), a secondary shaft bearing end cover (12), a secondary shaft plastic gasket (13) and a secondary shaft tapered roller bearing (14) are sleeved in the middle of the secondary shaft (10); the lower end of the secondary shaft (10) passes through the first shaft hole (21), and the section of the secondary shaft (10) exposed from the first shaft hole is provided with a secondary shaft driving device; the section of the secondary shaft (10) exposed from the first base cavity is sleeved with a side pressure wheel disc (6), and the section of the secondary shaft (10) exposed from the side pressure wheel disc is sleeved with a first nut gasket (15) and a first fixing nut (16) in sequence from bottom to top, and the first nut gasket (15) is locked by the first fixing nut (16).

4. The winding stator core production line equipment according to claim 3 is characterized in that: The clamping gasket (54) is arranged between the molding base plate (51) and the molding cover plate (52); the molding base plate (51), the molding cover plate (52) and the clamping gasket (54) are connected and fixed by screws; the molding base plate (51) and the upper end surface of the base (3) are connected and fixed by screws; and the base (3) and the upper end surface of the mounting base plate (2) are connected and fixed by screws.

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