Slot milling machine for machining hair clipper blade

Abstract

The slot milling machine comprises a milling mechanism and a shear blade body, the milling mechanism comprises a machining table serving as a base, a driving mechanism is arranged on the outer side wall of the machining table, and a supporting mechanism facilitating movement of the shear blade body is arranged at the position, located above the driving mechanism, of the outer side wall of the machining table. The driving mechanism is arranged to drive the shear blade body limited by the adsorption mechanism to move in an arc shape, the shear blade body moves to the smoothing mechanism through the supporting mechanism, then the transmission mechanism is used for driving the smoothing mechanism to work, and a first sliding plate and a second sliding plate move relatively; the upper end face of the shear blade body can be rubbed, so that the upper surface of the shear blade body is smoother, flaws and protruding points on the upper end face are removed, the smoothness of the surface of the shear blade body is improved, the situation that palms of workers are cut in the follow-up treatment process is effectively reduced, and the time needed by follow-up grinding is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of slot milling machines, in particular to a slot milling machine used for processing hairdressing scissors blades. Background Art

[0002] Barber scissors blades, as one of the indispensable professional tools in the hairdressing industry, have undergone years of development and innovation in their design and manufacturing technology, and have gradually formed a highly specialized and refined system. In order to improve the shearing effect of the scissors blades, grooves are generally milled on the blades, which can make the scissors blades smoother when cutting and reduce jamming and friction. Especially for hairdressing work that requires frequent and fine trimming, milling grooves can significantly improve the efficiency and comfort of trimming.

[0003] In the existing barber scissors blade processing technology, although the basic processing and forming of the scissors blade body have been achieved, when the scissors blade is milled, the milling groove surface will have certain burrs and protrusions due to processing reasons, and it will not be smooth enough. When the staff collects it, it is easy to cause safety hazards to the palms of the staff. If the milling groove surface of the scissors blade is polished separately, it will not only be time-consuming and labor-intensive, but also easily affect the size accuracy and shape accuracy of the scissors blade due to excessive polishing.

[0004] For this reason, we propose a slot milling machine for processing hairdressing scissors blades. Summary of the invention

[0005] The object of the present invention is to provide a groove milling machine for processing hairdressing scissors blades to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a milling machine for processing hairdressing scissors blades, comprising a milling mechanism and a scissors blade main body, the milling mechanism comprising a processing table as a base, the outer side wall of the processing table is provided with a driving mechanism, the outer side wall of the processing table is located above the driving mechanism and is provided with a supporting mechanism for facilitating the movement of the scissors blade main body, the outer side wall of the processing table is located on one side of the driving mechanism and is provided with a smoothing mechanism for smoothing the upper end surface of the scissors blade main body, the outer side wall of the smoothing mechanism is provided with a transmission mechanism for driving the local structure of the smoothing mechanism to work, and the end of the supporting mechanism is provided with an adsorption mechanism for adsorbing the scissors blade main body.

[0007] As a preferred embodiment of the above technical solution, the upper end surface of the processing table is fixedly connected to a fixing frame, the upper end surface end of the fixing frame is fixedly connected to a second motor, the output end of the second motor is fixedly connected to a threaded screw, the upper end surface of the fixing frame is located above the threaded screw and is slidably connected to a slide, the inner bottom end of the slide is fixedly connected to a supporting frame, the middle part of the lower bottom end of the slide is fixedly connected to a threaded frame threadedly sleeved with the threaded screw, the upper end surface of the supporting frame is fixedly connected to an upper supporting frame, a side of the upper supporting frame away from the processing table is fixedly connected to a plurality of first electric push rods, and the upper top end of the first electric push rod located in the middle is fixedly connected to A second electric push rod is connected, and the upper end surface of the upper support frame is fixedly connected to a limiting frame, and a plurality of material collection racks for storing the scissor blade main body are fixedly connected to the position of the upper end surface of the limiting frame corresponding to the first electric push rod, and a material discharge trough is provided on the upper end surface of the limiting frame to facilitate the falling of the scissor blade main body. The telescopic end of the first electric push rod is fixedly connected to a moving block, and the moving block is slidably connected to the inside of the upper support frame and is located below the material discharge trough, and the telescopic end of the second electric push rod is fixedly connected to a push block, and the end of the push block is fixedly connected to a plurality of push plates for pushing the scissor blade main body, and the push plates are slidably connected to the inside of the limiting frame.

[0008] As a preferred embodiment of the above technical solution, the inner side wall of the processing table is fixedly connected to a first motor, and the output end of the first motor is fixedly connected to a milling disc cutter via a rotating shaft, the inner top end of the processing table is located at the outer wall of the milling disc cutter and is fixedly connected to a protective frame, the inner top end of the processing table is located at the end of the milling disc cutter and is fixedly connected to a limiting plate, and the end of the milling disc cutter is rotatably sleeved with the limiting plate, and the outer side wall of the processing table is provided with a conveyor for driving the scissor blade body to move.

[0009] As a preferred embodiment of the above technical solution, the supporting mechanism includes a material unloading frame fixedly connected to the outer wall of the processing table and located above the conveyor, the outer wall of the material unloading frame is fixedly connected with an extension plate, the end of the extension plate is rotatably sleeved with a limiting sleeve through a bearing, the inner sliding sleeve of the limiting sleeve is sleeved with a fixed shaft, and the adsorption mechanism is arranged at the end of the fixed shaft.

[0010] As a preferred embodiment of the above technical solution, the adsorption mechanism includes a triangular plate fixedly connected to the end of the fixed shaft, the lower bottom end of the triangular plate is symmetrically fixedly connected to the limiting shaft, the ends of the two limiting shafts are fixedly connected with V-shaped plates, both ends of the V-shaped plates are provided with pneumatic suction cups for adsorbing and limiting the scissor blade body, and the adsorption end of the pneumatic suction cup passes through the V-shaped plate, the lower bottom end of the triangular plate is fixedly connected with a top plate, the lower bottom end of the top plate is slidably sleeved with a resistance plate for squeezing the scissor blade body, and the center of the upper top of the resistance plate is fixedly connected with a limiting spring.

[0011] As a preferred embodiment of the above technical solution, the driving mechanism includes a lifting frame fixedly connected to the outer side wall of the processing table, the upper end surface of the lifting frame is fixedly connected to a third motor, and the two output ends of the third motor are fixedly connected to driving rods, one end of the driving rods is fixedly connected to a convex plate, and the end of the convex plate is rotatably sleeved with a first rocker arm, the outer side wall of the processing table is located obliquely above the third motor and is fixedly connected with a fixed bracket, the end of the fixed bracket is rotatably sleeved with a second rocker arm, the end of the first rocker arm is rotatably connected to the center of the outer side wall of the second rocker arm, and the other end of the second rocker arm away from the fixed bracket is rotatably sleeved on the upper end surface of the triangle plate.

[0012] The cam is a vertical cam which is provided with a plurality of guide plates, the plurality of guide plates are symmetrically slidably sleeved on the upper ends of the two guide plates, and the plurality of guide plates are symmetrically slidably sleeved on the upper ends of the two guide plates. The plurality of guide rods are fixedly connected to the first slide plate, and the outer wall of the first slide plate is fixedly connected to the lower pressure frame, and the lower pressure frame is rotatably sleeved on the end portion of the side away from the first slide plate. The inner wall of the inner frame is symmetrically provided with limit grooves slidably sleeved on the limit wheel. The outer wall of the guide plate is fixedly connected with a first limiter which passes through the inner wall of the inner frame, and the upper end of the inner frame is slidably sleeved on the second slide plate. The outer wall of the inner frame is fixedly connected with the second limiter. The inner top of the inner frame is located at the interval between the two guide frames, and a collection frame for collecting the scissor blade bodies is placed.

[0013] As a preferred embodiment of the above technical solution, the outer side wall of the inner frame is symmetrically fixedly connected with a second bearing frame, the inner sides of the two second bearing frames are fixedly connected with an optical axis, the outer side wall of the second slide plate is fixedly connected with a clamping arm, and the clamping arm is slidably sleeved on the outer side wall of the optical axis, the upper top end of the second slide plate is symmetrically fixedly connected with a rotating shaft frame, and the inner sides of the two rotating shaft frames are rotatably sleeved with a blanking plate for pushing the scissor blade main body, and the center of the side of the blanking plate away from the second slide plate is also fixedly connected with a rotating shaft frame, the upper top end of the second slide plate is fixedly connected with a third electric push rod, and the telescopic end of the third electric push rod is fixedly connected with a sleeve rotatably sleeved inside the rotating shaft frame on the outer side wall of the blanking plate, and the upper end surface of the first slide plate and the lower end surface of the second slide plate are both fixedly connected with an extrusion plate that rubs against the surface of the scissor blade main body.

[0014] The transmission mechanism comprises a first bearing frame symmetrically fixedly connected to the outer wall of the inner frame, and a reciprocating screw rod is rotatably sleeved inside the two first bearing frames through bearings, and the outer wall of the reciprocating screw rod is threadedly sleeved with a reciprocating sleeve slidably connected to the inner frame. The outer wall of the inner frame is located above the reciprocating screw rod and is symmetrically rotatably sleeved with four sprockets through bearings, and the outer walls of the four sprockets are sleeved with a chain. The upper end of the reciprocating sleeve and the ends of the first limiter and the second limiter are all fixedly connected to the chain. The outer wall of the inner frame is located at the end of the first bearing frame and is fixedly connected to a gear frame, and the inner side wall of the gear frame is rotatably sleeved with a second gear on the side close to the reciprocating screw rod, and the inner side wall of the gear frame is rotatably sleeved with a first gear that meshes with the second gear for transmission, and the outer wall of the gear frame is coaxially fixedly connected to a synchronous wheel with the first gear, and the end of the other driving rod away from the convex plate is fixedly connected to the synchronous wheel, and the outer walls of the two synchronous wheels are sleeved with a synchronous belt for transmission.

[0015] As a preferred embodiment of the above technical solution, the outer wall of the gear frame is coaxially fixedly connected with the first gear, and the first gear is rotatably sleeved with the reciprocating screw, the outer wall of the reciprocating screw is provided with a spline groove, and the reciprocating screw is slidably sleeved with a second gear meshing with the first gear at the position of the spline groove, the outer wall of the inner frame is located above the reciprocating screw and is fixedly connected with a fourth electric push rod, and the telescopic end of the fourth electric push rod is fixedly connected with a limit sleeve plate rotatably sleeved on the outer wall of the second gear.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention is provided with a driving mechanism to drive the adsorption mechanism to perform arc movement, and the adsorption mechanism can play a certain adsorption effect on the scissors blade main body, so that it is limited, and then the adsorption mechanism performs arc movement and moves to the smoothing mechanism through the supporting mechanism, and then the transmission mechanism is used to drive the smoothing mechanism to work, wherein the first slide plate and the second slide plate move relative to each other, and can rub the upper end surface of the scissors blade main body to make its upper surface smoother, remove defects and protrusions on the upper end surface, improve the smoothness of the surface of the scissors blade main body, effectively reduce the situation of cutting the palm of the staff in the subsequent processing process, and reduce the time required for subsequent polishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the overall structure of a slot milling machine for processing hairdressing scissors blades; Figure 2 The figure is a schematic diagram of the overall side structure of a slot milling machine for processing hairdressing scissors blades; Figure 3 It is a schematic diagram of the structure of the milling mechanism of the present invention; Figure 4It is a schematic diagram of the split structure of the local milling mechanism of the present invention; Figure 5 This is a schematic diagram of the split structure of the fixed frame and the slide table of the present invention; Figure 6 This is a schematic diagram of the blanking structure of the scissors blade of the present invention; Figure 7 It is a schematic diagram of the structure of the driving mechanism and the smoothing mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of the driving mechanism of the present invention; Fig. 9 It is a schematic diagram of the structure of the adsorption mechanism of the present invention; Fig.10 This is a schematic diagram of the internal frame structure of the present invention; Fig.11 This is a schematic diagram of the back structure of the inner frame of the present invention; Fig.12 This is a schematic diagram of the split structure of the first slide plate and the inner frame of the present invention; Fig.13 It is a schematic diagram of the structure of the second slide plate of the present invention; Fig.14 It is a schematic diagram of the internal frame structure of the present invention.

[0018] In the figure: 1, milling mechanism; 11, processing table; 111, first motor; 112, milling disc cutter; 113, protection frame; 114, limit plate; 12, fixed frame; 13, second motor; 131, threaded screw; 14, slide; 141, threaded frame; 15, support frame; 151, first electric push rod; 152, second electric push rod; 153, material collection frame; 154, moving block; 155, limit frame; 156, material chute; 157, push block; 15 8. Push plate; 16. Conveyor; 17. Upper support frame; 2. Scissor blade body; 3. Driving mechanism; 31. Third motor; 32. Driving rod; 33. Conveyor plate; 331. First rocker arm; 332. Second rocker arm; 333. Fixed bracket; 34. Synchronous wheel; 35. Lifting frame; 36. Synchronous belt; 4. Support mechanism; 41. Unloading frame; 42. Extension plate; 43. Limiting sleeve; 44. Fixed shaft; 5. Smoothing mechanism; 51. Inner frame; 52. Limiting slot; 53, first slide plate; 531, guide frame; 532, guide rod; 533, guide plate; 534, lower pressure frame; 535, limit wheel; 536, first limiter; 54, second slide plate; 541, second limiter; 542, second bearing frame; 543, optical axis; 544, clamping arm; 545, rotating shaft frame; 546, third electric push rod; 547, blanking plate; 548, sleeve frame; 55, extrusion plate; 56, collection frame; 6, transmission mechanism; 6 1. First bearing frame; 62. Reciprocating screw rod; 621. Spline groove; 63. Reciprocating sleeve; 64. Sprocket; 65. Chain; 66. Gear frame; 661. First gear; 662. Second gear; 67. Fourth electric push rod; 671. Limit sleeve plate; 68. First gear disc; 69. Second gear disc; 7. Adsorption mechanism; 71. Triangular plate; 72. Limit shaft; 73. V-shaped plate; 74. Pneumatic suction cup; 75. Top plate; 76. Back plate; 77. Limit spring. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1 - Figure 4The present invention provides a technical solution: a milling machine for processing hairdressing scissors blades, comprising a milling mechanism 1 and a scissors blade body 2, the milling mechanism 1 comprising a processing table 11 as a base, the outer side wall of the processing table 11 is provided with a driving mechanism 3, the outer side wall of the processing table 11 is located above the driving mechanism 3 and is provided with a supporting mechanism 4 for facilitating the movement of the scissors blade body 2, the outer side wall of the processing table 11 is located at one side of the driving mechanism 3 and is provided with a smoothing mechanism 5 for smoothing the upper end surface of the scissors blade body 2, the outer side wall of the smoothing mechanism 5 is provided with a transmission mechanism 6 for driving the local structure of the smoothing mechanism 5 to work, and the end of the supporting mechanism 4 is provided with an adsorption mechanism 7 for adsorbing the scissors blade body 2.

[0021] By adopting the above technical scheme, the outer wall of the processing table 11, adjacent to the side of the driving mechanism 3, is also carefully configured with a smoothing mechanism 5. After milling is completed, the upper end surface of the scissor blade body 2 is finely smoothed to eliminate possible burrs or unevenness, so that the final product is smoother and meets high quality requirements, and reduces the time required for subsequent polishing. The transmission mechanism 6 can drive the local structure of the smoothing mechanism 5 to work as needed, which saves energy and improves processing efficiency. In addition, the end of the support mechanism 4 is also cleverly designed with an adsorption mechanism 7, which can firmly adsorb the scissor blade body 2 and thus move it.

[0022] See also Figure 1 - Figure 6The upper end surface of the processing table 11 is fixedly connected with a fixing frame 12, the upper end surface end of the fixing frame 12 is fixedly connected with a second motor 13, the output end of the second motor 13 is fixedly connected with a threaded screw 131, the upper end surface of the fixing frame 12 is located above the threaded screw 131 and is slidably connected with a slide 14, the inner bottom end of the slide 14 is fixedly connected with a support frame 15, the middle part of the lower bottom end of the slide 14 is fixedly connected with a threaded frame 141 threadedly sleeved with the threaded screw 131, the upper end surface of the support frame 15 is fixedly connected with an upper support frame 17, a side of the upper support frame 17 away from the processing table 11 is fixedly connected with a plurality of first electric push rods 151, and the upper top end of the first electric push rod 151 located in the middle is fixedly connected with a second electric push rod 152, The upper end surface of the upper support frame 17 is fixedly connected to a limiting frame 155, and a plurality of material collection frames 153 for storing the scissor blade main body 2 are fixedly connected to the upper end surface of the limiting frame 155 at the position corresponding to the first electric push rod 151. A material discharge chute 156 is provided on the upper end surface of the limiting frame 155 to facilitate the falling of the scissor blade main body 2. The telescopic end of the first electric push rod 151 is fixedly connected to a moving block 154, and the moving block 154 is slidably connected to the inside of the upper support frame 17 and is located below the material discharge chute 156. The telescopic end of the second electric push rod 152 is fixedly connected to a push block 157, and a plurality of push plates 158 for pushing the scissor blade main body 2 are fixedly connected to the end of the push block 157, and the push plate 158 is slidably connected to the inside of the limiting frame 155.

[0023] By adopting the above technical solution, the fixed frame 12 and its auxiliary mechanism fixedly connected to the upper end surface of the processing table 11 provide strong support for the efficient and orderly processing of the scissor blade body 2. The combination of the second motor 13 and the threaded screw 131 realizes the stable translation of the slide 14 on the fixed frame 12 through precise motor drive, which not only simplifies the complexity of the traditional mechanical adjustment process, but also greatly improves the flexibility and accuracy of the processing process. At the same time, the support frame 15 fixed on the slide 14 and the upper support frame 17 at its upper end provide a stable platform for the temporary storage and transmission of the scissor blade body 2. It effectively prevents shaking and misalignment during the processing. The first electric push rod 151 realizes the precise selection and movement of the scissor blade body 2 in the material collection rack 153 through the sliding of the moving block 154 in the upper support frame 17, and the design of the material discharge chute 156 cleverly solves the transition problem of the scissor blade body 2 from the material collection rack 153 to the processing area, which not only avoids the tedious manual operation, but also reduces the risk of material damage. The second electric push rod 152 slides in the limit frame 155 through the push block 157 and the push plate 158 thereon, further realizing the precise movement and positioning of the scissor blade body 2.

[0024] See also Figure 1 - Figure 4The inner wall of the processing table 11 is fixedly connected to a first motor 111, and the output end of the first motor 111 is fixedly connected to a milling disc cutter 112 through a rotating shaft. The inner top end of the processing table 11 is located at the outer wall of the milling disc cutter 112 and is fixedly connected to a protective frame 113. The inner top end of the processing table 11 is located at the end of the milling disc cutter 112 and is fixedly connected to a limiting plate 114, and the end of the milling disc cutter 112 is rotatably sleeved with the limiting plate 114. The outer wall of the processing table 11 is provided with a conveyor 16 that drives the scissor blade body 2 to move.

[0025] By adopting the above technical solution, the first motor 111 drives the milling disc cutter 112 to rotate at high speed through its powerful output torque, thereby realizing efficient and precise milling of the scissor blade body 2. The protective frame 113 fixed on the top of the processing table 11 provides necessary safety protection for the milling process, which can not only effectively prevent the debris generated during the milling process from splashing and protect the safety of the operator, but also reduce the impact of noise and vibration on the surrounding environment, thereby improving the overall working environment quality. The setting of the limit plate 114 ensures the axial positioning of the milling disc cutter 112 during high-speed rotation, thereby preventing axial movement caused by vibration or wear.

[0026] See also Figure 1 - Figure 7 The support mechanism 4 includes a material unloading frame 41 fixedly connected to the outer wall of the processing table 11 and located above the conveyor 16. The outer wall of the material unloading frame 41 is fixedly connected with an extension plate 42. The end of the extension plate 42 is rotatably sleeved with a limiting sleeve 43 through a bearing. The inner sliding sleeve of the limiting sleeve 43 is sleeved with a fixed shaft 44. The adsorption mechanism 7 is arranged at the end of the fixed shaft 44.

[0027] By adopting the above technical scheme, the ingenious structure of the support mechanism 4 provides an important guarantee for the precise positioning and stable transportation of the scissor blade body 2, especially the unloading frame 41 fixedly connected to the outer wall of the processing table 11 and located above the conveyor 16. It not only serves as a transition platform for the scissor blade body 2 from the conveyor 16 to the processing area, but also ensures the stability and accuracy of the scissor blade body 2 during the transportation process through its reasonable position and size design. The extension plate 42 fixedly connected to the outer wall of the unloading frame 41 and the limiting sleeve 43 rotatably sleeved on the end of the extension plate 42 through a bearing together constitute a flexible adjustment mechanism, allowing the fixed shaft 44 to slide and rotate within a certain range inside the limiting sleeve 43, thereby realizing the adjustment of the adsorption mechanism 7 in three-dimensional space.

[0028] See also Figure 7 - Fig. 9The adsorption mechanism 7 includes a triangular plate 71 fixedly connected to the end of the fixed shaft 44, the lower bottom end of the triangular plate 71 is symmetrically fixedly connected to the limiting shaft 72, the ends of the two limiting shafts 72 are fixedly connected to V-shaped plates 73, both ends of the V-shaped plate 73 are provided with pneumatic suction cups 74 for adsorbing and limiting the scissor blade body 2, and the adsorption end of the pneumatic suction cup 74 passes through the V-shaped plate 73, the lower bottom end of the triangular plate 71 is fixedly connected to a top plate 75, the lower bottom end of the top plate 75 is slidably sleeved with a push plate 76 for squeezing the scissor blade body 2, and a limiting spring 77 is fixedly connected at the center of the upper top of the push plate 76.

[0029] By adopting the above technical scheme, the structure of the adsorption mechanism 7 further enhances the stability and accuracy of the scissor blade body 2 during the processing, especially the triangular plate 71 fixedly connected to the end of the fixed shaft 44, its stable triangular structure not only provides a strong supporting force, but also ensures the stability of the entire adsorption mechanism 7, the design of the V-shaped plate 73 not only adapts to the shape characteristics of the scissor blade body 2, but also realizes the precise adsorption and limiting of the scissor blade body 2 through the pneumatic suction cups 74 at both ends, the adsorption end of the pneumatic suction cup 74 passes through the V-shaped plate 73, can firmly adsorb the scissor blade body 2, to prevent it from displacement or falling off during the processing, thereby ensuring the accuracy and stability of the processing, the abutment plate 76 is connected to the top plate 75 through the limit spring 77 at its upper top, can be adaptively adjusted according to the thickness and shape of the scissor blade body 2, to achieve uniform extrusion and fixation of the scissor blade body 2.

[0030] See also Figure 7 and Figure 8 The driving mechanism 3 includes a lifting frame 35 fixedly connected to the outer wall of the processing table 11, and the upper end surface of the lifting frame 35 is fixedly connected to the third motor 31. The two output ends of the third motor 31 are fixedly connected to the driving rods 32, and the end of one of the driving rods 32 is fixedly connected to the convex plate 33, and the end of the convex plate 33 is rotatably sleeved with the first rocker arm 331. The outer wall of the processing table 11 is located obliquely above the third motor 31 and is fixedly connected with a fixed bracket 333. The end of the fixed bracket 333 is rotatably sleeved with the second rocker arm 332. The end of the first rocker arm 331 is rotatably connected to the center of the outer wall of the second rocker arm 332, and the other end of the second rocker arm 332 away from the fixed bracket 333 is rotatably sleeved on the upper end surface of the triangular plate 71.

[0031] By adopting the above technical scheme, the lifting frame 35 is fixedly connected to the outer wall of the processing table 11, which not only provides a stable installation platform for the third motor 31, but also ensures that the driving rod 32 and the transmission mechanism 6 connected thereto can work smoothly and efficiently through its reasonable position and height design. The other end of the first rocker arm 331 is connected to the second rocker arm 332 rotatably sleeved on the end of the fixed bracket 333, forming a lever-type transmission system, which can convert the rotational power of the third motor 31 into the swinging power of the first rocker arm 331 and the second rocker arm 332, thereby realizing the precise driving of the triangular plate 71 and the adsorption mechanism 7 thereon. The other end of the second rocker arm 332 away from the fixed bracket 333 is rotatably sleeved on the upper end surface of the triangular plate 71, ensuring the stable movement of the adsorption mechanism 7 during the processing process, and the accuracy of the processing position of the scissors blade body 2 is achieved by adjusting the length and angle of the second rocker arm 332.

[0032] See also Figure 7 - Fig.12 The smoothing mechanism 5 includes an inner frame 51 fixedly connected to the outer wall of the processing table 11, and the inner bottom end of the inner frame 51 is symmetrically fixedly connected with a guide frame 531, and the upper tops of the two guide frames 531 are slidably sleeved with guide plates 533, and the upper tops of the guide plates 533 are symmetrically slidably sleeved with a plurality of guide rods 532, and the upper tops of the plurality of guide rods 532 are fixedly connected with a first slide plate 53, and the outer wall of the first slide plate 53 is fixedly connected with a lower pressing frame 534, and the lower pressing frame 534 is away from the side end of the first slide plate 53. The inner frame 51 is rotatably sleeved with a limit wheel 535, and the inner wall of the inner frame 51 is symmetrically provided with a limit groove 52 which is slidably sleeved with the limit wheel 535. The outer wall of the guide plate 533 is fixedly connected with a first limiter 536 that passes through the inner wall of the inner frame 51. The upper top of the inner frame 51 is slidably sleeved with a second slide plate 54, and the outer wall of the inner frame 51 is fixedly connected with a second limiter 541. The inner top of the inner frame 51 is located at the interval between the two guide frames 531, and a collection frame 56 for collecting the scissor blade main body 2 is placed.

[0033] By adopting the above technical solution, the addition of the smoothing mechanism 5 adds extra stability and smoothness to the processing process of the scissor blade body 2, further improving the processing quality and efficiency. The inner frame 51 fixedly connected to the outer wall of the processing table 11, as the main structure of the smoothing mechanism 5, provides a stable support platform for other components. The guide frame 531 at the bottom end of the inner frame 51 and the guide plate 533 and guide rod 532 at the top end thereof ensure that the first slide plate 53 and the lower pressure frame 534 thereon can move smoothly and accurately. The limiting wheel 535 on one side of the lower pressure frame 534 slides with the limiting groove 52 on the inner wall of the inner frame 51. The first slide 53 is connected to the guide plate 533, which not only limits the movement trajectory of the first slide 53, but also reduces the friction resistance through its rolling contact, making the movement smoother. The first limiter 536 on the outer wall of the guide plate 533 and the second limiter 541 on the outer wall of the inner frame 51 together constitute a precise control of the movement range of the first slide 53 and the second slide 54, ensuring the stability and safety of the processing process. The sliding sleeve design of the second slide 54 further enhances the flexibility and adaptability of the smoothing mechanism 5, which can move up and down according to the processing requirements and work together with the first slide 53 to achieve all-round support and protection for the scissors blade body 2 during the processing.

[0034] See also Fig.10 - Fig.14 The outer wall of the inner frame 51 is symmetrically fixedly connected with a second bearing frame 542, and the optical axis 543 is fixedly connected inside the two second bearing frames 542. The outer wall of the second slide plate 54 is fixedly connected with a clamping arm 544, and the clamping arm 544 is slidably sleeved on the outer wall of the optical axis 543. The upper top of the second slide plate 54 is symmetrically fixedly connected with a rotating shaft frame 545, and the two rotating shaft frames 545 are rotatably sleeved inside with a blanking plate 547 for pushing the scissor blade body 2. The center of the side of the blanking plate 547 away from the second slide plate 54 is also fixedly connected with the rotating shaft frame 545. The upper top of the second slide plate 54 is fixedly connected with a third electric push rod 546, and the telescopic end of the third electric push rod 546 is fixedly connected with a sleeve 548 that is rotatably sleeved inside the rotating shaft frame 545 on the outer wall of the blanking plate 547. The upper end surface of the first slide plate 53 and the lower end surface of the second slide plate 54 are both fixedly connected with an extrusion plate 55 that rubs against the surface of the scissor blade body 2.

[0035] The above technical solution is adopted, and the sliding sleeve design of the optical axis 543 and the clamping arm 544 not only ensures that the second slide plate 54 and the components thereon can move smoothly and accurately along the optical axis 543, but also reduces the resistance during the movement through its low friction characteristics, thereby improving the processing efficiency. The design of the clamping arm 544 not only enhances the structural stability of the second slide plate 54, but also realizes the precise control of the moving trajectory of the second slide plate 54 through its sliding sleeve connection on the optical axis 543. The blanking plate 547 is connected to the second slide plate 54 and the sleeve through the rotating shaft frame 545. The rotating sleeve of the frame 548 constitutes a flexible pushing mechanism. The telescopic end of the third electric push rod 546 is connected to the blanking plate 547 through the sleeve 548, and the blanking plate 547 can be accurately adjusted in angle and position according to processing requirements. The upper and lower end faces of the first slide 53 and the second slide 54 are fixedly connected to the extrusion plate 55. They are in friction contact with the surface of the scissor blade body 2, which not only ensures the stability and accuracy during the processing, but also slightly polishes and cleans the scissor blade body 2 through its friction force, further improving the processing quality.

[0036] See also Figure 7 - Fig.10 The transmission mechanism 6 includes a first bearing frame 61 symmetrically fixedly connected to the outer wall of the inner frame 51, and the interiors of the two first bearing frames 61 are sleeved with a reciprocating screw rod 62 through a bearing rotation sleeve, and the outer wall of the reciprocating screw rod 62 is sleeved with a reciprocating sleeve 63 that is slidably connected to the inner frame 51 through a thread, and the outer wall of the inner frame 51 is located above the reciprocating screw rod 62 and sleeved with four sprocket wheels 64 symmetrically rotatably through a bearing, and the outer walls of the four sprocket wheels 64 are sleeved with a chain 65, and the upper end of the reciprocating sleeve 63 and the ends of the first limiter 536 and the second limiter 541 are fixed to the chain 65 The outer wall of the inner frame 51 is fixedly connected with a gear rack 66 at the end of the first bearing frame 61, and the inner wall of the gear rack 66 is rotatably sleeved with a second gear 662 on one side close to the reciprocating screw rod 62, and the inner wall of the gear rack 66 is rotatably sleeved with a first gear 661 that meshes with the second gear 662 for transmission, and the outer wall of the gear rack 66 is coaxially fixedly connected with a synchronous wheel 34 with the first gear 661, and the end of the other driving rod 32 away from the convex plate 33 is fixedly connected with the synchronous wheel 34, and the outer walls of the two synchronous wheels 34 are sleeved with a synchronous belt 36 for transmission.

[0037] By adopting the above technical solution, the first bearing frame 61 is fixedly connected to the outer wall of the inner frame 51, providing a stable installation foundation for the reciprocating screw 62. The reciprocating screw 62 is rotatably sleeved inside the two first bearing frames 61 through the bearing. The thread of the outer wall thereof is sleeved with the thread of the reciprocating sleeve 63, realizing the function of converting the rotary motion into the reciprocating linear motion, which not only improves the efficiency and stability of the power transmission, but also enables the reciprocating sleeve 63 to move smoothly and accurately along the inner frame 51, thereby driving the chain 65, the first limiter 536, the second limiter 541 and other components connected thereto. For synchronous movement, the four sprockets 64 are respectively rotated and sleeved on the outer wall of the inner frame 51, and are connected by the chain 65 to form a closed transmission chain, which not only realizes the smooth transmission of power, but also ensures the stability and durability of long-term use through its high load-bearing capacity and wear resistance. The transmission connection between the second gear 662 and the reciprocating screw 62, and the coaxial fixed connection between the first gear 661 and the synchronous wheel 34, enable the rotational power of the drive mechanism 3 to be accurately transmitted to the reciprocating screw 62 and the chain 65 through multi-stage transmission, thereby realizing precise control of the entire processing process.

[0038] See also Figure 7 - Fig.10 The outer wall of the gear rack 66 is coaxially fixedly connected with the first toothed disc 68 and the second gear 662, and the first toothed disc 68 is rotatably sleeved with the reciprocating screw 62. A spline groove 621 is provided on the outer wall of the reciprocating screw 62. The reciprocating screw 62 is slidably sleeved with a second toothed disc 69 meshing with the first toothed disc 68 at the position of the spline groove 621. The outer wall of the inner frame 51 is located above the reciprocating screw 62 and is fixedly connected with a fourth electric push rod 67. The telescopic end of the fourth electric push rod 67 is fixedly connected with a limiting sleeve plate 671 rotatably sleeved on the outer wall of the second toothed disc 69.

[0039] By adopting the above technical scheme, the coaxial fixed connection design of the first toothed disc 68 and the second gear 662 not only ensures the synchronous rotation between them, but also realizes the conversion of gear transmission into a more sophisticated disc tooth transmission through their meshing transmission relationship. The second toothed disc 69 can not only slide smoothly along the reciprocating screw 62 in the spline groove 621, but also realize the precise adjustment of the rotation speed of the reciprocating screw 62 through the meshing relationship between its number of teeth and the first toothed disc 68. It not only improves the flexibility and controllability of the transmission, but also meets the precise control requirements under different processing needs through its strong adaptability and wide adjustment range. The fourth electric push rod 67 can drive the limit sleeve 671 and the second toothed disc 69 thereon to slide in the spline groove 621 through its precise telescopic movement, thereby realizing real-time adjustment of the rotation speed of the reciprocating screw 62.

[0040] For the milling groove processing of the end face of the scissor blade body 2: the scissor blade body 2 is placed inside the material collection rack 153. When milling grooves are required, the telescopic end of the second electric push rod 152 will drive the push block 157 and the push plate 158 to move linearly. At this time, the push plate 158 will squeeze the scissor blade body 2. Since only one scissor blade body 2 is allowed to be discharged alone between the outlet end of the material collection rack 153 and the upper end face of the limit rack 155, when the push plate 158 applies force to the scissor blade body 2, the scissor blade body 2 will fall into the moving block 154 below through the unloading chute 156. At this time, the telescopic end of the first electric push rod 151 drives the moving block 154 to move, so that the scissor blade body 2 can be sent to the bottom of the milling disc 112, and then the first The motor 111 drives the milling disc cutter 112 to rotate, and the milling disc cutter 112 will contact the upper end surface of the scissor blade body 2, so that the surface is milled by the rotation of the milling disc cutter 112. Since the contact surface between the milling disc cutter 112 and the scissor blade body 2 is too small, it is necessary to drive the threaded screw 131 to rotate through the output end of the second motor 13 during the processing, and the threaded screw 131 cooperates with the threaded frame 141 to realize the linear motion of the slide 14 on the upper end surface of the fixed frame 12. At this time, when one of the scissor blade bodies 2 is processed, the threaded screw 131 can be used to cooperate with the threaded frame 141 to drive the processed scissor blade body 2 to move, and the other group of scissor blade bodies 2 can be milled. For the processed scissor blade body 2: since the threaded screw 131 drives the threaded frame 141 to perform linear motion, when the processed scissor blade body 2 moves to the bottom of the adsorption mechanism 7, the output end of the third motor 31 drives the driving rod 32 and the convex plate 33 to rotate, and the end of the convex plate 33 is rotationally sleeved with the first rocker arm 331, so it can drive the first rocker arm 331 and the second rocker arm 332 to perform arc-shaped irregular motion, and the end of the second rocker arm 332 is rotationally sleeved with the adsorption mechanism 7. Therefore, after the adsorption mechanism 7 adsorbs the scissor blade body 2, it will perform arc-shaped motion under the drive of the second rocker arm 332 and the rotation guidance of the fixed shaft 44 and the limiting sleeve 43. At this time, the adsorption mechanism 7 will rotate ninety degrees and adsorb the scissor blade body 2. The attached scissor blade body 2 is located inside the blanking frame 41. At this time, the scissor blade body 2 is released from adsorption, and the scissor blade body 2 will fall onto the conveyor 16 through the blanking frame 41. Since the other end of the conveyor 16 is located above the first slide plate 53, the scissor blade body 2 will move to the upper end surface of the first slide plate 53. At this time, since the remaining scissor blade bodies 2 are undergoing milling processing, the scissor blade body 2 located on the first slide plate 53 can be processed first. At this time, the output end of the third motor 31 drives the drive rod 32 connected to the synchronous wheel 34 to rotate, and drives the first gear 661 and the second gear 662 to mesh and rotate through the synchronous belt 36, and the second gear 662 is engaged and rotated by the first toothed disc 68 and the second toothed disc 69. The reciprocating screw rod 62 is engaged to drive the reciprocating screw rod 62 to rotate, and the reciprocating sleeve 63 cooperates with the reciprocating screw rod 62 to realize linear motion, and the top of the reciprocating sleeve 63 is fixedly connected to the chain 65. Therefore, when the reciprocating sleeve 63 performs linear motion, it can drive the chain 65 to move and synchronously drive the meshing sprocket 64 to rotate. At this time, the first limiter 536 and the second limiter 541 will be synchronously driven to move, and the first slide plate 53 and the second slide plate 54 connected thereto will be driven to move. Since the first slide plate 53 cooperates with the limiting wheel 535 and the limiting groove 52, its height will be reduced as the first slide plate 53 moves, and the scissor blade body 2 at the top of the extruding plate 55 at the upper end surface of the first slide plate 53 will also move. After the first slide plate 53 and the second slide plate 54 are interlaced, the extrusion plate 55 on the lower end surface of the second slide plate 54 will contact the upper end surface of the scissor blade body 2, and with the interlaced movement of the first slide plate 53 and the second slide plate 54, friction is achieved, making the upper surface smoother, removing the defects and protrusions on the upper end surface, and improving the smoothness of the surface of the scissor blade body 2. Since the reciprocating sleeve 63 will realize reciprocation after moving to the end of the reciprocating screw rod 62, the first slide plate 53 and the second slide plate 54 will no longer be interlaced, and at this time, the telescopic end of the third electric push rod 546 can drive the sleeve frame 548 to adjust the position of the blanking plate 547. At this time, the blanking plate 547 makes an arc movement and is ninety degrees with the second slide plate 54. When the second slide plate 54 moves, the blanking plate 547The scissor blade body 2 is blocked. With the relative movement between the second slide plate 54 and the first slide plate 53, the scissor blade body 2 will fall from the first slide plate 53 under the blocking of the blanking plate 547 and enter the interior of the collection frame 56 to complete the collection.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A milling machine for processing a barber scissors blade, comprising a milling mechanism (1) and a scissors blade body (2), characterized in that: The milling mechanism (1) comprises a processing table (11) as a base, the outer side wall of the processing table (11) is provided with a driving mechanism (3), the outer side wall of the processing table (11) is located above the driving mechanism (3) and is provided with a supporting mechanism (4) for facilitating the movement of the scissor blade body (2), the outer side wall of the processing table (11) is located on one side of the driving mechanism (3) and is provided with a smoothing mechanism (5) for smoothing the upper end surface of the scissor blade body (2), the outer side wall of the smoothing mechanism (5) is provided with a transmission mechanism (6) for driving the local structure of the smoothing mechanism (5) to work, and the end of the supporting mechanism (4) is provided with an adsorption mechanism (7) for adsorbing the scissor blade body (2).

2. A slot milling machine for processing hairdressing scissors blades according to claim 1, characterized in that: The upper end surface of the processing table (11) is fixedly connected to a fixing frame (12), the upper end surface of the fixing frame (12) is fixedly connected to a second motor (13), the output end of the second motor (13) is fixedly connected to a threaded screw (131), the upper end surface of the fixing frame (12) is located above the threaded screw (131) and is slidably connected to a slide table (14), the inner bottom end of the slide table (14) is fixedly connected to a support frame (15), the middle part of the lower bottom end of the slide table (14) is fixedly connected to a threaded frame (141) threadedly sleeved with the threaded screw (131), the upper end surface of the support frame (15) is fixedly connected to an upper support frame (17), a side of the upper support frame (17) away from the processing table (11) is fixedly connected to a plurality of first electric push rods (151), and the upper top end of the first electric push rod (151) located in the middle is fixedly connected to a second electric push rod (152), The upper end surface of the upper support frame (17) is fixedly connected to a limiting frame (155); a plurality of material collecting frames (153) for storing the scissor blade bodies (2) are fixedly connected to the upper end surface of the limiting frame (155) at a position corresponding to the first electric push rod (151); a material discharge trough (156) for facilitating the falling of the scissor blade bodies (2) is provided on the upper end surface of the limiting frame (155); a moving block (154) is fixedly connected to the telescopic end of the first electric push rod (151); the moving block (154) is slidably connected to the interior of the upper support frame (17) and is located below the material discharge trough (156); a push block (157) is fixedly connected to the telescopic end of the second electric push rod (152); a plurality of push plates (158) for pushing the scissor blade bodies (2) are fixedly connected to the ends of the push blocks (157); the push plates (158) are slidably connected to the interior of the limiting frame (155).

3. A slot milling machine for processing hairdressing scissors blades according to claim 2, characterized in that: A first motor (111) is fixedly connected to the inner side wall of the processing table (11); an output end of the first motor (111) is fixedly connected to a milling disc cutter (112) via a rotating shaft; an inner top end of the processing table (11) is located at the outer wall of the milling disc cutter (112) and is fixedly connected to a protective frame (113); an inner top end of the processing table (11) is located at the end of the milling disc cutter (112) and is fixedly connected to a limiting plate (114); the end of the milling disc cutter (112) is rotatably sleeved with the limiting plate (114); and a conveyor (16) for driving the scissor blade body (2) to move is provided on the outer side wall of the processing table (11).

4. A slot milling machine for processing hairdressing scissors blades according to claim 1, characterized in that: The support mechanism (4) comprises a material unloading frame (41) fixedly connected to the outer wall of the processing table (11) and located above the conveyor (16); the outer wall of the material unloading frame (41) is fixedly connected to an extension plate (42); the end of the extension plate (42) is rotatably sleeved on a limit sleeve (43) via a bearing; the interior of the limit sleeve (43) is slidably sleeved with a fixed shaft (44); and the adsorption mechanism (7) is arranged at the end of the fixed shaft (44).

5. A slot milling machine for processing hairdressing scissors blades according to claim 4, characterized in that: The adsorption mechanism (7) comprises a triangular plate (71) fixedly connected to the end of a fixed shaft (44); the lower bottom end of the triangular plate (71) is symmetrically fixedly connected to a limit shaft (72); the ends of two limit shafts (72) are fixedly connected to V-shaped plates (73); both ends of the V-shaped plates (73) are provided with pneumatic suction cups (74) for adsorbing and limiting the scissor blade body (2); and the adsorption ends of the pneumatic suction cups (74) penetrate the V-shaped plates (73); the lower bottom end of the triangular plate (71) is fixedly connected to a top plate (75); the lower bottom end of the top plate (75) is slidably sleeved with a stop plate (76) for pressing the scissor blade body (2); and the center of the upper top of the stop plate (76) is fixedly connected to a limit spring (77).

6. A slot milling machine for processing hairdressing scissors blades according to claim 5, characterized in that: The driving mechanism (3) comprises a lifting frame (35) fixedly connected to the outer wall of the processing table (11), the upper end surface of the lifting frame (35) being fixedly connected to a third motor (31), both output ends of the third motor (31) being fixedly connected to driving rods (32), one end of the driving rod (32) being fixedly connected to a convex plate (33), the end of the convex plate (33) being rotatably sleeved with a first rocker arm (331), the outer wall of the processing table (11) being located obliquely above the third motor (31) being fixedly connected to a fixing bracket (333), the end of the fixing bracket (333) being rotatably sleeved with a second rocker arm (332), the end of the first rocker arm (331) being rotatably connected to the center of the outer wall of the second rocker arm (332), the other end of the second rocker arm (332) being away from the fixing bracket (333) being rotatably sleeved on the upper end surface of the triangular plate (71).

7. A slot milling machine for processing hairdressing scissors blades according to claim 6, characterized in that: The smoothing mechanism (5) comprises an inner frame (51) fixedly connected to the outer side wall of the processing table (11); the inner bottom end of the inner frame (51) is symmetrically fixedly connected to a guide frame (531); the upper top ends of the two guide frames (531) are slidably sleeved with guide plates (533); the upper top ends of the guide plates (533) are symmetrically slidably sleeved with a plurality of guide rods (532); the upper top ends of the plurality of guide rods (532) are fixedly connected to a first slide plate (53); the outer side wall of the first slide plate (53) is fixedly connected to a lower pressing frame (534); the lower pressing frame (534) is spaced apart from the first slide plate (53). The side end portion is rotatably sleeved with a limit wheel (535), the inner side wall of the inner frame (51) is symmetrically provided with a limit groove (52) slidably sleeved with the limit wheel (535), the outer side wall of the guide plate (533) is fixedly connected with a first limiter (536) penetrating the inner side wall of the inner frame (51), the upper top of the inner frame (51) is slidably sleeved with a second slide plate (54), the outer side wall of the inner frame (51) is fixedly connected with a second limiter (541), and the inner top of the inner frame (51) is located at the interval between the two guide frames (531) and a collection frame (56) for collecting the scissor blade bodies (2) is placed.

8. A slot milling machine for processing hairdressing scissors blades according to claim 7, characterized in that: The outer wall of the inner frame (51) is symmetrically fixedly connected to a second bearing frame (542), the interiors of the two second bearing frames (542) are fixedly connected to an optical axis (543), the outer wall of the second slide plate (54) is fixedly connected to a clamping arm (544), the clamping arm (544) is slidably sleeved on the outer wall of the optical axis (543), the upper top of the second slide plate (54) is symmetrically fixedly connected to a rotating shaft frame (545), and the interiors of the two rotating shaft frames (545) are rotatably sleeved with a blanking plate (547) for pushing the scissor blade body (2). ), the center of one side of the blanking plate (547) away from the second slide plate (54) is also fixedly connected to a rotating shaft frame (545), the upper top of the second slide plate (54) is fixedly connected to a third electric push rod (546), the telescopic end of the third electric push rod (546) is fixedly connected to a sleeve frame (548) rotatably sleeved inside the rotating shaft frame (545) on the outer wall of the blanking plate (547), and the upper end surface of the first slide plate (53) and the lower end surface of the second slide plate (54) are both fixedly connected to an extrusion plate (55) that rubs against the surface of the scissor blade body (2).

9. A slot milling machine for processing hairdressing scissors blades according to claim 8, characterized in that: The transmission mechanism (6) comprises a first bearing frame (61) symmetrically fixedly connected to the outer wall of the inner frame (51); a reciprocating screw rod (62) is rotatably sleeved inside the two first bearing frames (61) via bearings; a reciprocating sleeve (63) slidably connected to the inner frame (51) is threadedly sleeved on the outer wall of the reciprocating screw rod (62); four sprocket wheels (64) are symmetrically rotatably sleeved on the outer wall of the inner frame (51) above the reciprocating screw rod (62); a chain (65) is sleeved on the outer wall of the four sprocket wheels (64); an upper end of the reciprocating sleeve (63) and ends of the first stopper (536) and the second stopper (541) are fixed to the chain (65). The outer wall of the inner frame (51) is fixedly connected to a gear frame (66) at the end of the first bearing frame (61), the inner wall of the gear frame (66) is rotatably sleeved with a second gear (662) on a side close to the reciprocating screw rod (62), the inner wall of the gear frame (66) is rotatably sleeved with a first gear (661) meshing with the second gear (662) for transmission, the outer wall of the gear frame (66) is coaxially fixedly connected to a synchronous wheel (34) with the first gear (661), the other end of the drive rod (32) away from the convex plate (33) is fixedly connected to the synchronous wheel (34), and the outer walls of the two synchronous wheels (34) are sleeved with a synchronous belt (36) for transmission.

10. A slot milling machine for processing hairdressing scissors blades according to claim 9, characterized in that: The outer wall of the gear rack (66) is coaxially fixedly connected to a first toothed disc (68) with the second gear (662), and the first toothed disc (68) is rotatably sleeved with the reciprocating screw (62). A spline groove (621) is provided on the outer wall of the reciprocating screw (62), and a second toothed disc (69) meshing with the first toothed disc (68) is slidably sleeved on the reciprocating screw (62) at the position of the spline groove (621). The outer wall of the inner frame (51) is located above the reciprocating screw (62) and is fixedly connected to a fourth electric push rod (67). The telescopic end of the fourth electric push rod (67) is fixedly connected to a limit sleeve plate (671) rotatably sleeved on the outer wall of the second toothed disc (69).

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