Workpiece ejection mechanism for spinning machine
By designing the workpiece ejection mechanism of the spinning press, the rotation of the cylinder and the side elevation part that extends the arc, the problem of difficult demolding of large spinning parts is solved, and rapid unloading and stable product lifting is achieved. .
Patent Information
- Application Number
- CN202411217104.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-02-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In spinning machines, large spinning parts with larger axial size have a large contact area with the mold, which leads to difficulty in demolding.
A workpiece ejection mechanism for a spinning press is designed, including a cylinder fixing part, a lifting member, a restricting rod and a lifting drive member. The lifting cylinder moves axially in the fixed portion of the cylinder and rotates, pushes the top plate and the side lifting portion to extend to both sides in an arc trajectory, contacts and tightens the inner wall of the spinning product, thereby supporting the spinning product.
Quick cut is achieved, preventing the spinning product from sliding off the top plate, and the processing personnel or robots can easily clamp and remove the edges of the spinning product.
Smart Images

Figure CN119500847A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of spinning machines, in particular to a workpiece ejection mechanism for a spinning machine. Background Art
[0002] Spinning machine is a mechanical device used for metal plastic forming. It gradually deforms metal materials through rotation and pressure to obtain the desired shape and size. The working principle of the spinning machine is similar to the ancient pottery making technology. It gradually deforms metal materials from point to line and from line to surface through rotation and pressure. This process is not only suitable for common metals such as aluminum, iron, stainless steel, but also for precious metals such as titanium, copper, and silver. It has a wide range of applications, such as auto parts, lamps, kitchen utensils, military products, etc.
[0003] During the operation of the spinning machine, the workpiece rotates on the mold controlled by the main shaft, and the spinning wheel cooperates with the mold to realize the spinning of the workpiece. After the workpiece is formed, it is wrapped on the mold. For large spun parts with large axial dimensions, the contact area with the mold is large, and it is difficult to demold from the mold. Summary of the invention
[0004] The object of the present invention is to provide a workpiece ejection mechanism for a spinning machine to solve the problems raised in the background technology.
[0005] To achieve the above object, the present invention provides the following technical solutions: A workpiece ejection mechanism for a spinning machine comprises a cylinder fixing part, a lifting component, a limiting rod and a lifting driving component, one end of the cylinder fixing part is fixedly connected to the center of the end face of the spinning mold body away from the spinning product, and the cylinder fixing part has a groove part on the end face facing the spinning product; the lifting component comprises a lifting column, a top plate, a lower limiting plate and a side lifting part, the lifting column is located inside the cylinder fixing part, one end of the lifting column penetrates the spinning mold body and extends to the inside of the groove part, the top plate and the lower limiting plate are relatively arranged at the ends of the lifting column extending into the groove part, and an installation gap is left between the top plate and the lower limiting plate, so that The lifting driving component is arranged on the outer wall of the cylinder fixing part and is used to drive the lifting column to move axially along the cylinder fixing part and rotate while moving; one end of the limiting rod passes through the spinning mold body and is connected to the top plate and the other end is connected to the lifting driving component, and the limiting rod can move axially along the cylinder fixing part with the lifting column; the side lifting part is arranged on the end surface of the top plate facing the lower limiting plate and the side lifting part is connected to the end of the lifting column, and the lifting column in a rotating state can act on the side lifting part and make the two ends of the side lifting part on the same diameter extend to both sides in an arc trajectory.
[0006] On the basis of the above technical solution, the present invention also provides the following optional technical solution: In an optional scheme: the side lifting part includes two rotating extension parts, which are symmetrically arranged on both sides of the lifting column, and the rotating extension part includes a side lifting shaft and an arc-shaped rod component, the side lifting shaft is rotatably arranged on the end surface of the top plate and the side lifting shaft is located at a position close to the edge of the end surface of the top plate, and a side lifting gear is arranged on the side lifting shaft, and the side lifting gear is meshed with a driving gear arranged on the lifting column; one end of the arc-shaped rod component is fixedly connected to the side lifting shaft and the other end extends away from the other side of the lifting column.
[0007] In an optional scheme: two extended guide grooves are provided on the end surface of the top plate facing the lower limiting plate and the two extended guide grooves correspond to two arc-shaped rod components respectively, the arc-shaped rod component includes an arc-shaped rod body and a rod body sleeve, one end of the arc-shaped rod body is fixedly connected to the side lifting shaft and the other end extends to the side of the top plate away from the side lifting shaft; the rod body sleeve is sleeved on the arc-shaped rod body and an adjusting column is fixedly connected to the outer wall of the rod body sleeve close to the side lifting shaft, one end of the adjusting column extends to the inside of the extended guide groove and an adjusting roller body is sleeved on the adjusting column for rotationally cooperating therewith, and the outer wall of the adjusting roller body is in rolling contact with the inner wall of the extended guide groove.
[0008] In an optional solution: the end of the rod body sleeve away from the side lifting shaft is also provided with and universally movably connected to the end of the rod body sleeve.
[0009] In an optional scheme: the lifting column is a hollow structure and the outer wall of the cylinder fixing part is provided with an avoidance guide opening along its axial direction, the lifting driving component includes a lifting plug shaft, a lifting screw rod part and a lifting motor, the lifting plug shaft is arranged inside the cylinder fixing part and one end is rotatably connected to the end wall of the cylinder, the lifting plug shaft is inserted into the inside of the lifting column and slidably cooperates with it, the output end of the lifting motor is connected with the end of the lifting plug shaft, the lifting screw rod part is rotatably arranged on the outer wall of the cylinder fixing part and the axis of the lifting screw rod part is parallel to the axis of the cylinder fixing part, the end of the lifting screw rod part is also connected to the end of the lifting plug shaft through a lifting gear pair, the lifting screw rod part is provided with a spiral seat which slides with the outer wall of the cylinder fixing part, the outer wall of the lifting column is provided with a connecting rotating sleeve which rotatably cooperates with it, and one end of the spiral seat is connected to the connecting rotating sleeve through the avoidance guide opening, and the spiral seat is also fixedly connected to the end of the limiting rod.
[0010] In an optional solution: at least one inner connecting axial groove is provided on the inner wall of the lifting column, and an outer connecting axial protrusion is provided on the outer wall of the lifting plug shaft, and the outer connecting axial protrusion is slidably matched with the inner part of the inner connecting axial groove.
[0011] In an optional solution: a pressure sensing sheet is provided on the end surface of the lower limiting plate away from the top plate, and the pressure sensing sheet is electrically connected to the lifting motor.
[0012] Compared with the prior art, the present invention has the following beneficial effects: When the middle top plate in the present invention pushes the spun product away from the main body of the spinning mold, the self-rotating lifting column also acts on the side lifting parts and makes the two ends of the side lifting parts extend to both sides in an arc trajectory. The two ends of the side lifting parts extending to both sides of the main body of the spinning mold respectively contact and press against the inner wall of the spun product, so that the spun product is lifted in a manner of maintaining the original position and preventing the spun product from sliding off the top plate. It is convenient for processing personnel or manipulators to clamp the edge of the spun product and take away the spun product, thereby realizing rapid material unloading. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic structural diagram of an ejection mechanism lifting a spun product in one embodiment of the present invention.
[0014] Figure 2 It is a schematic diagram of the installation structure of the ejection mechanism in one embodiment of the present invention.
[0015] Figure 3 The figure is a schematic diagram of the structure of a lifting component in one embodiment of the present invention.
[0016] Figure 4 It is a schematic diagram of the structure of the side lifting part in one embodiment of the present invention.
[0017] Figure 5 It is a schematic diagram of the structure of a lifting driving component in one embodiment of the present invention.
[0018] Figure 6 It is a schematic diagram of the internal structure of the cylinder fixing part in one embodiment of the present invention.
[0019] Notes on figure marks: spinning mold body 100, groove part 110, spinning product 200, cylinder fixing part 300, avoidance guide port 310, lifting component 400, lifting column 410, internal connection axial groove 411, driving gear 412, lift plate 420, extension guide groove 421, lower limiting plate 430, side lifting part 440, side lifting shaft 441, side lifting gear 442, arc rod component 443, arc rod body 444, rod body sleeve 445, adjustment plug column 446, adjustment roller body 447, limiting rod 500, lifting drive component 600, lifting plug shaft 610, external connection axial protrusion 611, lifting screw rod part 620, screw seat 630, lifting motor 640, lifting gear pair 650, connecting rotating sleeve 660. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments; in the drawings or descriptions, similar or identical parts use the same reference numerals, and in practical applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.
[0021] In one embodiment, Figure 1-Figure 3 As shown, a workpiece ejection mechanism for a spinning machine includes a barrel fixing portion 300, a lifting component 400, a limiting rod 500 and a lifting driving component 600, wherein one end of the barrel fixing portion 300 is fixedly connected to the center of the end surface of the spinning mold body 100 away from the spinning product 200, and the barrel fixing portion 300 has a groove portion 110 on the end surface facing the spinning product 200; the lifting component 400 includes a lifting column 410, a top plate 420, a lower limiting plate 430 and a side lifting portion 440, the lifting column 410 is located inside the barrel fixing portion 300, one end of the lifting column 410 penetrates the spinning mold body 100 and extends to the inside of the groove portion 110, the top plate 420 and the lower limiting plate 430 are relatively arranged at the end of the lifting column 410 extending into the groove portion 110, and the top plate 420 and the lower limiting plate 430 are relatively arranged at the end of the lifting column 410 extending into the groove portion 110, and the top plate 420 and the lower limiting plate 430 An installation gap is left between the two, and the lifting driving component 600 is arranged on the outer wall of the cylinder fixing part 300 and is used to drive the lifting column 410 to move axially along the cylinder fixing part 300 and rotate while moving; one end of the limiting rod 500 passes through the spinning mold body 100 and is connected to the top plate 420 and the other end is connected to the lifting driving component 600, and the limiting rod 500 can move axially along the cylinder fixing part 300 with the lifting column 410; the side lifting part 440 is arranged on the end surface of the top plate 420 facing the lower limiting plate 430 and the side lifting part 440 is connected to the end of the lifting column 410, and the lifting column 410 in a rotating state can act on the side lifting part 440 and make the two ends of the side lifting part 440 on the same diameter extend to both sides in an arc trajectory.
[0022] In the actual application process of the embodiment of the present invention, in the initial state, the top plate 420, the lower limiting plate 430 and the side lifting part 440 are all located inside the groove part 110, and the end surface of the top plate 420 away from the lower limiting plate 430 is on the same plane as the end surface of the spinning mold body 100, and the spinning product 200 is pressed and formed under the operation of the spinning machine and the spinning product 200 is stuck on the spinning mold body 100; the lifting driving component 600 starts to work, and the lifting driving component 600 acts on the lifting column 410 and the limiting rod 500, and the lifting column 410 moves axially along the cylinder fixing part 300 and rotates, and the axially moving lifting column 410 pushes the top plate 420 to rotate. 0 and the side lifting part 440 push out the groove part 110, and the top plate 420 also pushes the spun product 200 away from the spinning mold body 100; and the rotating lifting column 410 also acts on the side lifting part 440 and makes the two ends of the side lifting part 440 extend to both sides in an arc trajectory, and the two ends of the side lifting part 440 extending to both sides of the spinning mold body 100 respectively contact and press against the inner wall of the spun product 200, so that the spun product 200 is lifted in a way of maintaining the original position and preventing the spun product 200 from sliding off the top plate 420, so that the processing personnel or the robot can easily clamp the edge of the spun product 200 and take away the spun product 200, so as to realize fast material unloading.
[0023] In one embodiment, Figure 1-Figure 4 As shown, the side lifting part 440 includes two rotating extension parts, which are symmetrically arranged on both sides of the lifting column 410, and the rotating extension parts include a side lifting shaft 441 and an arc rod component 443. The side lifting shaft 441 is rotatably arranged on the end surface of the top plate 420 and the side lifting shaft 441 is located at a position close to the edge of the end surface of the top plate 420. A side lifting gear 442 is arranged on the side lifting shaft 441, and the side lifting gear 442 is meshed with the active gear 412 arranged on the lifting column 410; one end of the arc rod component 443 is fixedly connected to the side lifting shaft 441 and the other end extends to the other side away from the lifting column 410; in the actual application process of the embodiment of the present invention, the self-rotating lifting column 410 is driven by the active The meshing of the gear 412 and the side lift gear 442 drives the arc rod component 443 to rotate; when the top plate 420 moves toward the end of the groove portion 110, the arc rod component 443 gradually rotates toward one side of the side lift shaft 441, and the end of the arc rod component 443 away from the side lift shaft 441 extends to the outside of the top plate 420 and gradually rests on the inner wall of the spun product 200; when the top plate 420 moves toward the inside of the groove portion 110, the arc rod component 443 rotates toward the side away from the side lift shaft 441, and the arc rod component 443 gradually shrinks to the bottom of the top plate 420, so that the top plate 420 and the side lift portion 440 can be received in the groove portion 110, so as not to affect the pressing work of the spinning mold body 100 on the spun product 200.
[0024] In one embodiment, Figure 1-Figure 4 As shown, two extended guide grooves 421 are provided on the end surface of the top plate 420 facing the lower limiting plate 430, and the two extended guide grooves 421 correspond to two arc-shaped rod components 443 respectively. The arc-shaped rod component 443 includes an arc-shaped rod body 444 and a rod body sleeve 445. One end of the arc-shaped rod body 444 is fixedly connected to the side lifting shaft 441 and the other end extends to the side of the top plate 420 away from the side lifting shaft 441; the rod body sleeve 445 is sleeved on the arc-shaped rod body 444 and an adjusting plug 446 is fixedly connected to the outer wall of the rod body sleeve 445 close to the side lifting shaft 441. One end of the adjusting plug 446 extends to the inside of the extended guide groove 421 and the adjusting plug 446 is fixedly connected to the side lifting shaft 441. An adjusting roller body 447 is sleeved on the plug post 446 and rotatably cooperates with the plug post 446, and the outer wall of the adjusting roller body 447 is in rolling contact with the inner wall of the extended guide groove 421; in the actual application process of the embodiment of the present invention, when the end of the arc rod body 444 away from the side lifting shaft 441 rotates toward the side where the side lifting shaft 441 is located, under the guidance of the extended guide groove 421, the adjusting plug post 446 and the adjusting roller body 447 push the rod body sleeve 445 to move along the arc of the arc rod body 444, so that the end of the rod body sleeve 445 away from the side lifting shaft 441 can extend outward and contact with the inner wall of the spun product 200; thereby, the range of action of the arc rod component 443 can be effectively increased.
[0025] In one embodiment, Figure 1-Figure 4 As shown, the end of the rod sleeve 445 away from the side lifting shaft 441 is also provided with 448, and 448 is universally movably connected to the end of the rod sleeve 445; in actual application of the embodiment of the present invention, the end of the rod sleeve 445 contacts and abuts against the inside of the spun product 200 through 448, and 448 is in rolling contact with the inner wall of the spun product 200, thereby reducing friction when the spun product 200 is lifted and avoiding scratching the inner wall of the spun product 200.
[0026] In one embodiment, Figure 2-6As shown, the lifting column 410 is a hollow structure and the outer wall of the cylinder fixing part 300 is provided with an avoidance guide opening 310 along its axial direction. The lifting driving component 600 includes a lifting plug shaft 610, a lifting screw rod part 620 and a lifting motor 640. The lifting plug shaft 610 is arranged inside the cylinder fixing part 300 and one end is rotatably connected to the end wall thereof. The lifting plug shaft 610 is inserted into the lifting column 410 and slidably cooperates with the lifting column 410. The output end of the lifting motor 640 is connected to the lifting column 410. The end of the plug-in shaft 610 is connected, the lifting screw rod part 620 is rotatably arranged on the outer wall of the cylinder fixing part 300, and the axis of the lifting screw rod part 620 is parallel to the axis of the cylinder fixing part 300. The end of the lifting screw rod part 620 is also connected to the end of the lifting plug-in shaft 610 through a lifting gear pair 650. The lifting screw rod part 620 is provided with a spiral seat 630 that slides with the outer wall of the cylinder fixing part 300, and the outer wall of the lifting column 410 is provided with a spiral seat 630 that rotates with it. The matching connecting rotating sleeve 660 and one end of the spiral seat 630 pass through the avoidance guide opening 310 to be connected with the connecting rotating sleeve 660, and the spiral seat 630 is also fixedly connected to the end of the limiting rod 500; in the actual application process of the embodiment of the present invention, the lifting motor 640 works and drives the lifting plug shaft 610 to rotate, and the lifting plug shaft 610 drives the lifting column 410 to rotate and makes the two ends of the side lifting part 440 on the same diameter extend to both sides in an arc trajectory; the lifting plug shaft 610 also drives the lifting screw rod part 620 to rotate through the lifting gear pair 650, and the rotating lifting screw rod part 620 drives the spiral seat 630 to move along the axis direction of the cylinder fixing part 300, and then the spiral seat 630 drives the lifting column 410 to move along the axis direction of the cylinder fixing part 300 through the connecting rotating sleeve 660, so that the top plate 420 and the side lifting part 440 extend out of the groove part 110 and lift the spun product 200, or shrink to the inside of the groove part 110.
[0027] In one embodiment, Figure 2-Figure 6 As shown, at least one internal connecting axial groove 411 is arranged on the inner wall of the lifting column 410, and an external connecting axial protrusion 611 is arranged on the outer wall of the lifting plug shaft 610, and the external connecting axial protrusion 611 is slidably matched with the inner part of the internal connecting axial groove 411; with the cooperation of the external connecting axial protrusion 611 and the internal connecting axial groove 411, the lifting column 410 can move axially relative to the lifting plug shaft 610, and at the same time, the lifting plug shaft 610 can also drive the lifting column 410 to rotate when it rotates.
[0028] In one embodiment, Figure 2 and Figure 5 As shown, a pressure sensing sheet is provided on the end surface of the lower limiting plate 430 away from the top plate 420 and the pressure sensing sheet is electrically connected to the lifting motor 640; when the pressure sensing sheet senses pressure, it can transmit a signal to the lifting motor 640, and the lifting motor 640 starts to switch its working state.
[0029] The above embodiment provides a workpiece ejection mechanism for a spinning machine, wherein, in an initial state, the top plate 420, the lower limiting plate 430 and the side lifting portion 440 are all located inside the groove portion 110 and the end surface of the top plate 420 away from the lower limiting plate 430 is in the same plane as the end surface of the spinning mold body 100, and the spinning product 200 is pressed and formed under the operation of the spinning machine and the spinning product 200 is stuck on the spinning mold body 100; the lifting drive component 600 starts to work, and the lifting drive component 600 acts on the lifting column 410 and the limiting rod 500, and the lifting column 410 moves axially along the cylinder fixing portion 300 and rotates, and the axially moving lifting column 410 will The top plate 420 and the side lifting part 440 push out the groove part 110, and the top plate 420 also pushes the spun product 200 away from the spinning mold body 100; and the self-rotating lifting column 410 also acts on the side lifting part 440 and makes the two ends of the side lifting part 440 extend to both sides in an arc trajectory, and the two ends of the side lifting part 440 extending to both sides of the spinning mold body 100 respectively contact and press against the inner wall of the spun product 200, so that the spun product 200 is lifted in a way of maintaining the original position and preventing the spun product 200 from sliding off the top plate 420, so that the processing personnel or the robot can easily clamp the edge of the spun product 200 and take away the spun product 200, so as to realize fast material unloading.
[0030] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.
Claims
1. A workpiece ejection mechanism for a spinning machine, comprising a cylinder fixing portion, an ejection component, a limiting rod and an ejection driving component, characterized in that: One end of the barrel fixing part is fixedly connected to the center of the end surface of the spinning mold body away from the spinning product, and the barrel fixing part has a groove on the end surface facing the spinning product; The lifting component includes a lifting column, a top plate, a lower limiting plate and a side lifting part; The lifting cylinder is located inside the cylinder fixing part, one end of the lifting cylinder penetrates the spinning mold body and extends to the inside of the groove part, the top plate and the lower limiting plate are relatively arranged at the end of the lifting cylinder extending into the groove part, and an installation gap is left between the top plate and the lower limiting plate, and the lifting driving component is arranged on the outer wall of the cylinder fixing part and the lifting driving component is used to drive the lifting cylinder to move axially along the cylinder fixing part and rotate while moving; One end of the limiting rod penetrates the spinning mold body and is connected to the top plate, and the other end is connected to the jacking drive component, and the limiting rod can move axially along the cylinder fixing part along with the jacking column; The side lifting part is arranged on the end surface of the top plate facing the lower limiting plate and is connected to the end of the lifting column. The lifting column in a rotating state can act on the side lifting part and make the two ends of the side lifting part on the same diameter extend to both sides in an arc trajectory.
2. The workpiece ejection mechanism for a spinning machine according to claim 1, characterized in that: The side jacking portion includes two rotation extensions; Two rotating extension parts are symmetrically arranged on both sides of the lifting column, and the rotating extension parts include a side lifting shaft and an arc rod part; The side lifting shaft is rotatably arranged on the end surface of the top plate and is located at a position of the end surface of the top plate close to the edge. A side lifting gear is arranged on the side lifting shaft, and the side lifting gear is meshed with a driving gear arranged on the lifting column. One end of the arc-shaped rod component is fixedly connected to the side lifting shaft and the other end extends away from the other side of the lifting column.
3. The workpiece ejection mechanism for a spinning machine according to claim 2, characterized in that: Two extended guide grooves are arranged on the end surface of the top plate facing the lower limiting plate, and the two extended guide grooves correspond to the two arc-shaped rod parts respectively; The arc-shaped rod component comprises an arc-shaped rod body and a rod body sleeve, wherein one end of the arc-shaped rod body is fixedly connected to the side lifting shaft and the other end extends to a side of the top plate away from the side lifting shaft; The rod body sleeve is sleeved on the arc rod body and an adjustment column is fixedly connected to the outer wall of the rod body sleeve close to the side lifting shaft, one end of the adjustment column extends to the inside of the extended guide groove and an adjustment roller body is sleeved on the adjustment column to rotate with it, and the outer wall of the adjustment roller body is in rolling contact with the inner wall of the extended guide groove.
4. The workpiece ejection mechanism for a spinning machine according to claim 3, characterized in that: The end of the rod body sleeve away from the side lifting shaft is also provided with and universally movably connected with the end of the rod body sleeve.
5. The workpiece ejection mechanism for a spinning machine according to claim 1, characterized in that: The jacking column is a hollow structure and the outer wall of the cylinder fixing part is provided with an avoidance guide opening along the axial direction thereof. The jacking driving component comprises a jacking plug shaft, a jacking screw rod part and a jacking motor; The jacking plug shaft is arranged inside the fixed part of the cylinder and one end is rotatably connected to the end wall thereof, the jacking plug shaft is inserted into the inside of the jacking column and slidably cooperates with it, the output end of the jacking motor is connected to the end of the jacking plug shaft, the jacking screw rod part is rotatably arranged on the outer wall of the fixed part of the cylinder and the axis of the jacking screw rod part is parallel to the axis of the fixed part of the cylinder; The end of the lifting screw rod is also connected to the end of the lifting plug shaft through a lifting gear pair. The lifting screw rod is provided with a spiral seat that slides with the outer wall of the cylinder fixing part. The outer wall of the lifting column is provided with a connecting rotating sleeve that rotates with it, and one end of the spiral seat is connected to the connecting rotating sleeve through the avoidance guide port. The spiral seat is also fixedly connected to the end of the limiting rod.
6. The workpiece ejection mechanism for a spinning machine according to claim 5, characterized in that: At least one inner connection axial groove is arranged on the inner wall of the lifting column, and an outer connection axial protrusion is arranged on the outer wall of the lifting plug shaft, and the outer connection axial protrusion is slidably matched with the inner connection axial groove.
7. The workpiece ejection mechanism for a spinning machine according to claim 5, characterized in that: A pressure sensing sheet is arranged on the end surface of the lower limiting plate away from the top plate, and the pressure sensing sheet is electrically connected to the lifting motor.