Shaping method and shaping disc device for preformed product with metal-macromolecular structure

Abstract

The invention discloses a shaping method and a shaping disc device for a preformed product with a metal-macromolecular structure, and the shaping method comprises the following steps: designing a shaping disc device, enabling the shaping disc device to be in a retracted state, supporting the shaping disc device through a bracket, moving a cylinder body of the product downwards, and fixing the cylinder body on the shaping disc device; the outer periphery of the shaping disc device in the retracted state is sleeved with the through hole in the end face of one end of the barrel, then the shaping disc device is controlled to be in the stretching-out state, and then the barrel continues to move downwards, so that the shaping disc device in the stretching-out state abuts against the inner bottom of the end face of the barrel at the other end of the barrel. Then an external pressure head is controlled to downwards press the outer top of the cylinder end face at the other end of the cylinder, so that the external pressure head is matched with the shaping disc device to extrude and shape the cylinder end face at the other end of the cylinder; and after completion, the shaping disc device is controlled to be in a retracting state again, the shaping disc device is taken out of the barrel, then the barrel is reversed, and the barrel end face at one end of the barrel is subjected to extrusion shaping according to the steps.

Description

Technical Field

[0001] The invention relates to a shaping method and a shaping tool, in particular to a shaping method and a shaping disk device for a metal-polymer structure preformed product. Background Art

[0002] like Figure 1 As shown, a metal-polymer structure preformed product is in the shape of a cylinder, comprising a cylinder 1, an upper end surface through hole 2 arranged on the upper end surface 111 of the cylinder, and a lower end surface through hole 3 arranged on the lower end surface 112 of the cylinder, wherein the upper end surface through hole 2 and the lower end surface through hole 3 are both connected to the cylinder inner cavity 4. The diameter of the upper end surface through hole 2 and the diameter of the lower end surface through hole 3 are both set to D1, and the inner diameter of the cylinder inner cavity 4 is set to D2, then D1<D2.

[0003] In the process requirements, before the metal-polymer structure preformed product is sent to the vulcanizer for vulcanization, it is necessary to ensure that the end face thickness A of the upper end face 111 of the cylinder and the lower end face 112 of the cylinder are within a certain design range, such as A±0.5mm; however, after the metal-polymer structure preformed product is wound, the end face thickness A of the upper end face 111 of the cylinder and the lower end face 112 of the cylinder will be thicker than the required design range. For example, after winding, the end face thickness A of the upper end face 111 of the cylinder and the lower end face 112 of the cylinder can reach A+(3 to 4)mm, which exceeds the required design range of 2.5 to 4.5mm. Therefore, in order to ensure that the end face thickness A meets the design requirements, the end face thickness A of the metal-polymer structure preformed product must be finalized by a certain device, and then the metal-polymer structure preformed product is sent to the vulcanizer for vulcanization after finalization.

[0004] In the prior art, a shaping plate is placed inside the cylinder, and the shaping plate cooperates with an external pressure head to extrude and shape the end face of the cylinder, so that the end face thickness A meets the design requirements. However, the diameter of the shaping plate needs to be similar to the inner diameter D2 of the inner cavity 4 of the cylinder, so that the inner bottom of the end face of the cylinder can be supported and the external pressure head can cooperate to extrude and shape the end face of the cylinder. Therefore, the diameter of the shaping plate will also be greater than the diameter D1 of the end face through hole. In order to place the shaping plate inside the cylinder, it needs to pass through the end face through hole. Therefore, if Figure 2 As shown in the figure, when placing the shaping plate 5, the shaping plate 5 needs to be tilted, put into the inner cavity 4 of the cylinder through the end face through hole, and then support the inner bottom of the end face of the cylinder. When the work is completed, the shaping plate 5 needs to be taken out from the inner cavity 4 of the cylinder through the end face through hole. However, such frequent placement and removal will cause the corners of the shaping plate 5 to scratch the cylinder, reducing the product quality of the cylinder. In addition, frequent placement and removal will complicate the processing steps and increase the labor intensity of the operators.

[0005] After searching, no patent documents identical or similar to the present application have been found.

[0006] In summary, how to design a shaping method and a shaping disk device so that it can be conveniently and quickly placed inside the cylinder and cooperate with the external pressure head to extrude and shape the end face of the cylinder, and will not scratch the cylinder during the placement and removal process, thereby improving the product quality of the cylinder and simplifying the operation, and reducing the labor intensity of the operators is a technical problem that needs to be solved urgently. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a shaping method and a shaping disk device with a telescopic structure in view of the defects existing in the prior art. The shaping disk device can be conveniently and quickly placed inside a cylinder and cooperate with an external pressure head to extrude and shape the end surface of the cylinder. During the placement and removal process, the cylinder will not be scratched, thereby improving the product quality of the cylinder and simplifying the operation, thereby reducing the labor intensity of the operating workers.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is: a shaping method for a metal-polymer structure preformed product, the metal-polymer structure preformed product comprises a cylinder, an upper end surface through hole arranged on the upper end surface of the cylinder, and a lower end surface through hole arranged on the lower end surface of the cylinder, the diameter of the upper end surface through hole and the diameter of the lower end surface through hole are both set to D1, the inner diameter of the inner cavity of the cylinder is set to D2, then D1<D2, the shaping method is to design a retractable shaping disk device, when shaping, first put the shaping disk device in a retracted state, support the shaping disk device through a bracket, and then move the cylinder of the metal-polymer structure preformed product downward, The end surface through hole at one end of the cylinder is sleeved to the outer peripheral position of the shaping disk device in the retracted state, and then the shaping disk device is controlled to be in the extended state, and then the cylinder continues to move downward, so that the shaping disk device in the extended state presses against the inner bottom of the cylinder end surface at the other end of the cylinder, and then the external pressure head is controlled to press down the outer top of the cylinder end surface at the other end of the cylinder, so as to cooperate with the shaping disk device to extrude and shape the cylinder end surface at the other end of the cylinder; after completion, the shaping disk device is controlled to be in the retracted state again, taken out of the cylinder, and then the cylinder is turned over, and the cylinder end surface at one end of the cylinder is extruded and shaped according to the above steps.

[0009] Preferably, the shaping disk device comprises a chassis and a rotating shaft, one end of the rotating shaft is rotatably connected to the center position of the chassis, and a trajectory stroke control disk is also arranged on the other end of the rotating shaft, and the trajectory stroke control disk can be driven to rotate together with the rotation of the rotating shaft; a plurality of guide grooves are arranged on the chassis, each of which is arranged along the radial direction of the chassis, and a plurality of guide grooves are sequentially distributed on the chassis along the circumference of the chassis; the shaping disk device also comprises a plurality of fan ring shaping blocks 1 and fan ring shaping blocks 2, the arc length of the fan ring shaping block 1 is greater than the arc length of the fan ring shaping block 2, and when the shaping disk device is in an extended state, the plurality of fan ring shaping blocks 1 and fan ring shaping blocks 2 are enclosed along the circumference of the chassis to form a circular ring; each fan ring shaping block is slidably connected to a guide groove; a rod body is arranged on the top of each fan ring shaping block, and a plurality of trajectory stroke grooves are arranged on the trajectory stroke control disk, and the rod body on the top of each fan ring shaping block passes through a trajectory stroke groove and is slidably connected with the trajectory stroke groove; When it is necessary to control the shaping disk device to be in a retracted state, the rotating shaft is rotated to drive the trajectory stroke control disk to rotate, and the rod body at the top of the fan ring shaping block cooperates with the trajectory stroke groove on the trajectory stroke control disk, which can drive multiple fan ring shaping blocks to move along the guide groove toward the side close to the rotating shaft, so that the shaping disk device is in a retracted state; When it is necessary to control the shaping disk device to be in an extended state, just rotate the rotating shaft in the reverse direction to drive the trajectory stroke control disk to rotate in the reverse direction. Through the cooperation of the rod body at the top of the fan ring shaping block and the trajectory stroke groove on the trajectory stroke control disk, multiple fan ring shaping blocks can be driven to move along the guide groove toward the side away from the rotating shaft, so that the shaping disk device is in an extended state.

[0010] Preferably, the specific steps of the shaping method are: firstly, the bottom plate of the shaping disk device is supported by a bracket, and then the rotating shaft is rotated so that the shaping disk device is in a retracted state; then the cylinder is moved downward, and the end surface through hole at one end of the cylinder is sleeved to the outer peripheral position of the shaping disk device, at this time, the shaping disk device enters the cylinder inner cavity of the cylinder, and the rotating shaft of the shaping disk device is exposed to the cylinder, and then the rotating shaft is rotated in the opposite direction so that the shaping disk device is in an extended state, so that a plurality of fan ring shaping blocks are extended to enclose to form a circular ring; and then The cylinder is then moved downward so that the top surfaces of the multiple sector-ring shaping blocks that form a circular ring are pressed against the inner bottom of the cylinder end surface at the other end of the cylinder, and then the external pressure head is controlled to press down the outer top of the cylinder end surface at the other end of the cylinder, thereby cooperating with the shaping disk device to extrude and shape the cylinder end surface at the other end of the cylinder; after completion, the shaping disk device is controlled to be in a retracted state again, taken out of the cylinder, and then the cylinder is turned over, and the cylinder end surface at one end of the cylinder is extruded and shaped according to the above steps.

[0011] Preferably, the fan ring shaping block 1 and the fan ring shaping block 2 both include a fan ring block and a connecting block arranged on one side of the side plate, the rod body is arranged on the top of the connecting block, the arc length of the fan ring block of the fan ring shaping block 1 is greater than the arc length of the fan ring block of the fan ring shaping block 2; the multiple fan ring shaping blocks 1 and the fan ring shaping blocks 2 are alternately distributed along the circumference of the chassis, and when the shaping disk device is in an extended state, the fan ring blocks of the multiple fan ring shaping blocks 1 and the fan ring blocks of the fan ring shaping block 2 are enclosed along the circumference of the chassis to form a The track stroke groove comprises a plurality of track stroke grooves 1 and a plurality of track stroke grooves 2, the plurality of track stroke grooves 1 and the plurality of track stroke grooves 2 are alternately distributed in sequence along the circumference of the track stroke control disk, the track stroke groove 1 is slidably connected with the rod body of the fan ring shaping block 1, and the track stroke groove 2 is slidably connected with the rod body of the fan ring shaping block 2; the track stroke groove 1 comprises an avoidance stroke groove 1 and a control stroke groove 1, and the track stroke groove 2 comprises an avoidance stroke groove 2 and a control stroke groove 2; When the rotating shaft is rotated, the trajectory stroke control disk rotates accordingly. At this time, the rod body of the fan ring shaping block is equivalent to the rod body of the fan ring shaping block. The rod body of the fan ring shaping block 1 moves from the avoidance stroke groove 1 of the trajectory stroke groove 1 to the control stroke groove 1, and the rod body of the fan ring shaping block 2 moves from the control stroke groove 2 of the trajectory stroke groove 2 to the avoidance stroke groove 2, so that the shaping disk device is in a retracted state through the cooperation between the rod body and the trajectory stroke groove on the trajectory stroke control disk; When the rotating shaft is rotated in the opposite direction, the trajectory stroke control disk rotates in the opposite direction accordingly. At this time, the rod body of the fan ring shaping block one, which is equivalent to the rod body of the fan ring shaping block, moves from the control stroke groove one of the trajectory stroke groove one toward the avoidance stroke groove one, and the rod body of the fan ring shaping block two moves from the avoidance stroke groove two of the trajectory stroke groove two toward the control stroke groove two, so that the shaping disk device is in an extended state through the cooperation between the rod body and the trajectory stroke groove on the trajectory stroke control disk.

[0012] Preferably, when the rotating shaft is rotated, the rod body of the fan ring shaping block 1 moves in the avoidance stroke groove 1 of the track stroke groove 1, and the rod body of the fan ring shaping block 2 moves in the control stroke groove 2 of the track stroke groove 2; the rod body of the fan ring shaping block 1 does not contact the avoidance stroke groove 1 to generate a force, while the rod body of the fan ring shaping block 2 contacts the control stroke groove 2 to generate a force 1, so that the multiple fan ring shaping blocks 1 are fixed, and the multiple fan ring shaping blocks 2 are driven by the force 1 to move along the guide groove toward the side close to the rotating shaft, and the multiple fan ring shaping blocks 2 with shorter arc lengths are retracted first; Then continue to rotate the shaft, so that the rod body of the fan ring shaping block one moves in the control stroke groove one of the track stroke groove one, and the rod body of the fan ring shaping block two moves in the avoidance stroke groove two of the track stroke groove two; the rod body of the fan ring shaping block one contacts with the control stroke groove one to generate force two, while the rod body of the fan ring shaping block two does not contact with the avoidance stroke groove two to generate force, thereby fixing multiple fan ring shaping blocks two in place, and driven by the force two, multiple fan ring shaping blocks one will move along the guide groove toward the side close to the shaft, and then retract multiple fan ring shaping blocks one with longer arc lengths, so that the shaping disk device is in a retracted state.

[0013] Preferably, when the rotating shaft rotates in the reverse direction, the rod body of the fan ring shaping block 1 moves in the control stroke groove 1 of the track stroke groove 1, and the rod body of the fan ring shaping block 2 moves in the avoidance stroke groove 2 of the track stroke groove 2; the rod body of the fan ring shaping block 1 contacts with the control stroke groove 1 to generate a force 3, while the rod body of the fan ring shaping block 2 does not contact with the avoidance stroke groove 2 to generate a force, so that the multiple fan ring shaping blocks 2 are fixed, and the multiple fan ring shaping blocks 1 are driven by the force 3 to move along the guide groove toward the side away from the rotating shaft, and the multiple fan ring shaping blocks 1 with longer arc lengths are extended first; Then continue to rotate the shaft in the opposite direction, so that the rod body of the fan ring shaping block one moves in the avoidance travel groove one of the track travel groove one, and the rod body of the fan ring shaping block two moves in the control travel groove two of the track travel groove two; the rod body of the fan ring shaping block one does not contact the avoidance travel groove one to generate a force, while the rod body of the fan ring shaping block two contacts the control travel groove two to generate a force four, thereby making multiple fan ring shaping blocks one fixed, and driven by the force four, multiple fan ring shaping blocks two will move along the guide groove toward the side away from the shaft, and then retract multiple fan ring shaping blocks two with shorter arc lengths, so that the shaping disk device is in an extended state.

[0014] Preferably, a plurality of conical blocks are also provided on the trajectory stroke control disk, and the external pressure head includes a ring body, and a conical surface is provided on the inner side surface of the ring body. When the external pressure head is pressed downward, the conical surface of the ring body cooperates with the conical surfaces of the conical blocks, thereby ensuring that the central axis of the ring body and the central axis of the cylinder coincide with each other.

[0015] The present invention also discloses a shaping disk device, comprising a chassis and a rotating shaft, one end of the rotating shaft is rotatably connected to the center position of the chassis, and a trajectory stroke control disk is also arranged on the other end of the rotating shaft, and the trajectory stroke control disk can be driven to rotate together with the rotation of the rotating shaft; a plurality of guide grooves are arranged on the chassis, each guide groove is arranged along the radial direction of the chassis, and a plurality of guide grooves are sequentially distributed on the chassis along the circumference of the chassis; the shaping disk device also includes a plurality of fan ring shaping blocks 1 and fan ring shaping blocks 2, the arc length of the fan ring shaping block 1 is greater than the arc length of the fan ring shaping block 2; each fan ring shaping block is slidably connected to a guide groove; a rod body is arranged on the top of each fan ring shaping block, and a plurality of trajectory stroke grooves are arranged on the trajectory stroke control disk, and the rod body on the top of each fan ring shaping block passes through a trajectory stroke groove and is slidably connected to the trajectory stroke groove in cooperation; thereby, the rod body cooperates with the trajectory stroke groove, so that a plurality of fan ring shaping blocks can move back and forth along the guide groove in succession.

[0016] Preferably, the fan ring shaping block 1 and the fan ring shaping block 2 both include a fan ring block and a connecting block arranged on one side of the side plate, the rod body is arranged on the top of the connecting block, and a slider is arranged at the bottom of the fan ring block, which is slidably connected with the guide groove through the slider, so that the fan ring shaping block is slidably connected with the guide groove, and the arc length of the fan ring block of the fan ring shaping block 1 is greater than the arc length of the fan ring block of the fan ring shaping block 2; the multiple fan ring shaping blocks 1 and the fan ring shaping blocks 2 are alternately distributed in sequence along the circumference of the chassis, when When the shaping disk device is in an extended state, the fan ring blocks of the multiple fan ring shaping blocks one and the fan ring blocks of the fan ring shaping block two are surrounded along the circumference of the chassis to form a circular ring shape; the track travel groove includes multiple track travel grooves one and multiple track travel grooves two, and the multiple track travel grooves one and the multiple track travel grooves two are alternately distributed in sequence along the circumference of the track travel control disk, and the track travel groove one is slidably connected with the rod body of the fan ring shaping block one, and the track travel groove two is slidably connected with the rod body of the fan ring shaping block two.

[0017] Preferably, the trajectory stroke groove 1 includes an avoidance stroke groove 1 and a control stroke groove 1, the avoidance stroke groove 1 and the control stroke groove 1 are connected and distributed in a V-shape, and the trajectory stroke groove 2 includes an avoidance stroke groove 2 and a control stroke groove 2, the avoidance stroke groove 2 and the control stroke groove 2 are connected and distributed in a V-shape.

[0018] The beneficial effects of the present invention are as follows: the present invention can conveniently and quickly place the shaping disk device inside the cylinder to cooperate with the external pressure head to extrude and shape the end face of the cylinder by designing a retractable shaping disk device. During the placement and removal process, the cylinder will not be scratched, the product quality of the cylinder is improved, the operation is simple, and the labor intensity of the operator is reduced. By designing the specific structure of the shaping disk device, the retractable function of the shaping disk device is realized, thereby ensuring the smooth extrusion and shaping of the end face of the cylinder. By refining the design of the trajectory stroke groove, the coordinated movement between the trajectory stroke groove and the control stroke groove and the rod body is utilized, thereby ingeniously realizing the retractable function of the shaping disk device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the circumferential cross-sectional structure of a metal-polymer structure preformed product; Figure 2 It is a schematic diagram of the principle structure of extruding and shaping the end surface of the cylinder of a metal-polymer structure preformed product in the prior art; Figure 3 The schematic diagram of the principle structure of the embodiment of the present invention when the end surface of the cylinder of the metal-polymer structure preformed product is extruded and formed. Figure 1 ; Figure 4 The schematic diagram of the principle structure of the embodiment of the present invention when the end surface of the cylinder of the metal-polymer structure preformed product is extruded and formed. Figure 2 ; Figure 5 The schematic diagram of the principle structure of the embodiment of the present invention when the end surface of the cylinder of the metal-polymer structure preformed product is extruded and formed. Figure 3 ; Figure 6 The schematic diagram of the principle structure of the embodiment of the present invention when the end surface of the cylinder of the metal-polymer structure preformed product is extruded and formed. Figure 4 ; Figure 7 This is a schematic diagram of the three-dimensional structure of the shaping disk device in an embodiment of the present invention; Figure 8 This is a schematic diagram of the axial cross-sectional structure of the shaping disk device in the embodiment of the present invention; Fig. 9 The three-dimensional structural diagram of the shaping disk device in the embodiment of the present invention after the trajectory travel control disk is removed; Fig.10 This is a schematic diagram of the three-dimensional structure of the chassis in an embodiment of the present invention; Fig.11 This is a schematic diagram of the three-dimensional structure of the trajectory travel control disk in an embodiment of the present invention; Fig.12 for Figure 7The enlarged structural diagram of the middle A part; Fig.13 The operating principle of the shaping method in this embodiment is shown in FIG. Figure 1 ; Fig.14 The operating principle of the shaping method in this embodiment is shown in FIG. Figure 2 ; Fig.15 The operating principle of the shaping method in this embodiment is shown in FIG. Figure 3 ; Fig.16 for Fig.15 A schematic diagram of the enlarged structure of the middle B part; Fig.17 This is a schematic diagram of the three-dimensional structure of a fan ring shaping block 1 in an embodiment of the present invention; Fig.18 The top view of the structure of the shaping disk device in the embodiment of the present invention when it is retracted Figure 1 ; Fig.19 The top view of the structure of the shaping disk device in the embodiment of the present invention when it is retracted Figure 2 ; In the figure: 1. Cylinder, 111. Cylinder upper end surface, 112. Cylinder lower end surface, 2. Upper end surface through hole, 3. Lower end surface through hole, 4. Cylinder inner cavity, 5. Forming plate, 6. Forming plate device, 611. Chassis, 612. Rotating shaft, 613. Track stroke control plate, 614. Fan ring forming block 1, 615. Fan ring forming block 2, 7. External pressure head, 711. Ring body, 712. Conical surface, 71 3. Flange, 8. Guide groove, 9. Rod body, 10. Track stroke groove, 101. Track stroke groove one, 1011. Avoidance stroke groove one, 1012. Control stroke groove one, 102. Track stroke groove two, 1021. Avoidance stroke groove two, 1022. Control stroke groove two, 11. Bracket, 12. Fan ring block, 13. Connecting block, 14. Slider, 15. Conical block, 16. Upper limit block. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Example: Figures 3 to 6As shown, the applicant has designed a retractable shaping disk device 6, when it is in the retracted state, the diameter D of the shaping disk device 6 is ≤ the diameter D1 of the end face through hole, so that it can pass through the end face through hole into the interior of the cylinder; when the shaping disk device 6 is in the extended state, the diameter D of the shaping disk device 6 is equal to the inner diameter D2 of the inner cavity 4 of the cylinder, so that it can support the inner bottom of the end face of the cylinder to extrude and shape the end face of the cylinder; the shaping method is to first put the shaping disk device 6 in the retracted state, support the shaping disk device 6 by a bracket (not shown in the figure), which is supported on the ground in this embodiment, and then move the cylinder 1 of the product to be processed downward, from one end of the cylinder The end face through hole (in the figure, it is inserted from the lower end face through hole 3) is inserted into the outer peripheral position of the shaping disk device 6. At this time, the shaping disk device 6 enters the cylinder inner cavity 4 of the cylinder 1, and then the shaping disk device 6 is controlled to be in an extended state, so that its diameter D matches the inner diameter D2 of the cylinder inner cavity 4, and then the cylinder 1 continues to move downward, so that the shaping disk device 6 in the extended state supports the inner bottom of the cylinder end face at the other end of the cylinder (in the figure, it supports the inner bottom of the upper end face 111 of the cylinder), and then the external pressure head 7 is controlled to press down the outer top of the cylinder end face at the other end of the cylinder, so as to cooperate with the shaping disk device 6 to extrude and shape the cylinder end face at the other end of the cylinder. After completion, the shaping disk device 6 is controlled to be in a retracted state, taken out of the cylinder 1, and then the cylinder 1 is reversed, and the cylinder end face at one end of the cylinder 1 is extruded and shaped according to the above steps. This embodiment is designed with a retractable shaping disk device, which can be conveniently and quickly placed inside the cylinder and cooperate with the external pressure head to extrude and shape the end surface of the cylinder. During the placement and removal process, the cylinder will not be scratched, thereby improving the product quality of the cylinder and simplifying the operation, reducing the labor intensity of the operator.

[0022] like Figure 7 and Figure 8 As shown, the shaping disk device 6 includes a chassis 611 and a rotating shaft 612. One end of the rotating shaft 612 is rotatably connected to the center of the chassis 611 through a bearing. A trajectory travel control disk 613 is also provided on the other end of the rotating shaft 612. When the rotating shaft 612 rotates, the trajectory travel control disk 613 can be driven to rotate together. Figures 9 to 11As shown, a plurality of guide grooves 8 are provided on the chassis 611, each guide groove 8 is provided along the radial direction of the chassis 611, and a plurality of guide grooves 8 are sequentially distributed on the chassis 611 along the circumference of the chassis 611. In the present embodiment, a total of six guide grooves 8 are provided. The shaping disk device 6 also includes a plurality of fan ring shaping blocks 1 614 and fan ring shaping blocks 2 615, the arc length of the fan ring shaping block 1 614 is greater than the arc length of the fan ring shaping block 2 615, and when the shaping disk device 6 is in an extended state, the plurality of fan ring shaping blocks 1 614 and fan ring shaping blocks 2 615 are enclosed along the circumference of the chassis 611 to form a circular ring shape. In the present embodiment, a total of three fan ring shaping blocks 1 614 and three fan ring shaping blocks 2 615 are provided. Each fan ring shaping block is slidably connected to a guide groove 8. As shown Fig. 9 , Fig.11 and Fig.12 As shown, a rod body 9 is provided at the top of each fan ring shaping block, and a plurality of trajectory stroke grooves 10 are provided on the trajectory stroke control disk 613. The rod body 9 at the top of each fan ring shaping block passes through a trajectory stroke groove 10 and is slidably connected with the trajectory stroke groove 10, so that the rod body 9 cooperates with the trajectory stroke groove 10, so that the plurality of fan ring shaping blocks can move back and forth along the guide groove 8. This embodiment realizes the telescopic function of the shaping disk device by designing the specific structure of the shaping disk device, thereby ensuring the smooth extrusion shaping of the end face of the cylinder. An upper limit block 16 is also provided on one end of the rod body 9 passing through the trajectory stroke groove 10.

[0023] like Figures 13 to 16As shown, when working, first support the chassis 611 of the shaping disk device 6 through the bracket 11, and then rotate the shaft 612, and drive the trajectory stroke control disk 613 to rotate through the shaft 612, and the trajectory stroke groove 10 on the trajectory stroke control disk 613 contacts the rod body 9 at the top of the fan ring shaping block, so that multiple fan ring shaping blocks can be moved along the guide groove 8 toward the direction close to the shaft 612, so that the multiple fan ring shaping blocks are closed together; then move the cylinder 1 of the product to be processed downward, and put it from the end face through hole at one end of the cylinder 1 to the outer peripheral position of the shaping disk device 6. At this time, the shaping disk device 6 enters the cylinder inner cavity 4 of the cylinder 1, and the shaft 612 of the shaping disk device 6 is exposed outside the cylinder 1, and then reverse. By rotating the rotating shaft 612, the trajectory stroke control disk 613 is driven to rotate through the rotating shaft 612, and the trajectory stroke groove 10 on the trajectory stroke control disk 613 contacts the rod body 9 on the top of the fan ring shaping block, so that multiple fan ring shaping blocks can be moved along the guide groove 8 in the direction away from the rotating shaft 612, so that the multiple fan ring shaping blocks are extended to form a circular ring shape; then the cylinder 1 is continued to move downward, so that the top surface of the multiple fan ring shaping blocks that form a circular ring is against the inner bottom of the cylinder end face at the other end of the cylinder 1, and then the external pressure head 7 is controlled to press down the outer top of the cylinder end face at the other end of the cylinder 1, so as to cooperate with the shaping disk device 6 to extrude and shape the cylinder end face at the other end of the cylinder 1.

[0024] like Fig. 9 and Fig.17 As shown, the fan ring shaping block 1 614 and the fan ring shaping block 2 615 both include a fan ring block 12 and a connecting block 13 arranged on one side of the side plate 12, the rod body 9 is arranged on the top of the connecting block 13, and a slider 14 is arranged at the bottom of the fan ring block 12, which is slidably connected with the guide groove 8 through the slider 14, so that the fan ring shaping block is slidably connected with the guide groove 8. The arc length of the fan ring block 12 of the fan ring shaping block 1 614 is greater than the arc length of the fan ring block 12 of the fan ring shaping block 2 615. When the top surfaces of the multiple fan ring shaping blocks are against the inner bottom of the cylinder end surface at the other end of the cylinder 1, the top surface of the fan ring block 12 of the fan ring shaping block is used to support the inner bottom of the cylinder end surface at the other end of the cylinder 1. As shown Figure 7 As shown, the multiple fan ring shaping blocks 1 614 and the fan ring shaping blocks 2 615 are alternately distributed in sequence along the circumference of the chassis 611. When the shaping disk device 6 is in an extended state, the fan ring blocks 12 of the multiple fan ring shaping blocks 1 614 and the fan ring blocks 12 of the fan ring shaping blocks 2 615 are surrounded along the circumference of the chassis 611 to form a circular ring shape.

[0025] like Fig.11As shown, the track travel groove 10 includes a plurality of track travel grooves 101 and a plurality of track travel grooves 102, and the plurality of track travel grooves 101 and the plurality of track travel grooves 102 are alternately distributed in sequence along the circumference of the track travel control disk 613, and the track travel groove 101 is slidably connected with the rod body 9 of the fan ring shaping block 1 614, and the track travel groove 2 102 is slidably connected with the rod body 9 of the fan ring shaping block 2 615. The track travel groove 101 includes an air avoidance travel groove 1011 and a control travel groove 1012, and the air avoidance travel groove 1011 and the control travel groove 1012 are connected and distributed in a V-shape, and the track travel groove 2 102 includes an air avoidance travel groove 1021 and a control travel groove 1022, and the air avoidance travel groove 1021 and the control travel groove 2 1022 are connected and distributed in a V-shape. As shown Figure 7 and Fig.11 As shown, when the shaping disk device 6 is in the extended state, the rod body 9 of the fan ring shaping block 1 614 is located in the avoidance stroke groove 1 1011 of the track stroke groove 101, and the rod body 9 of the fan ring shaping block 2 615 is located in the control stroke groove 2 1022 of the track stroke groove 2 102. When the rotating shaft 612 is rotated, the track stroke control disk 613 rotates accordingly. At this time, for the rod body of the fan ring shaping block, the rod body 9 of the fan ring shaping block 1 614 moves from the avoidance stroke groove 1 1011 of the track stroke groove 101 toward the control stroke groove 1 1012 of the track stroke groove 101, and the rod body 9 of the fan ring shaping block 2 615 moves from the control stroke groove 2 1022 of the track stroke groove 2 102 toward the avoidance stroke groove 2 1021. During the movement, the rod body does not contact the avoidance stroke groove when moving in the avoidance stroke groove, so that they are relatively No force will be generated between them. Only when moving in the control stroke groove, the rod body contacts the control stroke groove to generate a force, that is, when just starting to rotate, the rod body 9 of the fan ring shaping block 1 614 moves in the avoidance stroke groove 1 1011 of the track stroke groove 101, and the rod body 9 of the fan ring shaping block 2 615 moves in the control stroke groove 2 1022 of the track stroke groove 2 102; since the rod body 9 of the fan ring shaping block 1 614 does not contact the avoidance stroke groove 1011 to generate a force, and the rod body 9 of the fan ring shaping block 2 615 contacts the control stroke groove 2 1022 to generate a force one, therefore, multiple fan ring shaping blocks 1 614 are fixed, and multiple fan ring shaping blocks 2 615, driven by the force one, will move along the guide groove 8 toward the side close to the rotating shaft 612, and first retract multiple fan ring shaping blocks 2 615 with shorter arc lengths (such as Fig.18As shown); then continue to rotate the rotating shaft 612, so that the rod body 9 of the fan ring shaping block 1 614 moves in the control stroke groove 1012 of the track stroke groove 101, and the rod body 9 of the fan ring shaping block 2 615 moves in the avoidance stroke groove 2 1021 of the track stroke groove 2 102; because the rod body 9 of the fan ring shaping block 1 614 contacts with the control stroke groove 1012 to generate a force 2, and the rod body 9 of the fan ring shaping block 2 615 does not contact with the avoidance stroke groove 2 1021 to generate a force, therefore, multiple fan ring shaping blocks 2 61 are fixed, and multiple fan ring shaping blocks 1 614 are driven by the said force 2, and will move along the guide groove 8 toward the side close to the rotating shaft 612, and then retract multiple fan ring shaping blocks 1 614 with longer arc lengths (as shown in FIG. Fig.19 As shown), the shaping disk device 6 is in a retracted state.

[0026] When it is necessary to put the shaping disk device 6 in the extended state, contrary to the above principle, it is sufficient to rotate the shaft 612 in the opposite direction. When the shaft is rotated in the opposite direction, the trajectory stroke control disk rotates in the opposite direction. At this time, the rod body 9 of the fan ring shaping block 1 614 moves from the control stroke groove 1 1012 of the trajectory stroke groove 101 toward the avoidance stroke groove 1 1011, and the rod body 9 of the fan ring shaping block 2 615 moves from the avoidance stroke groove 2 1021 of the trajectory stroke groove 2 102 toward the control stroke groove 1011. When the groove 1022 moves, that is, when the reverse rotation just starts, the rod body 9 of the fan ring shaping block 1 614 moves in the control stroke groove 1012 of the track stroke groove 101, and the rod body 9 of the fan ring shaping block 2 615 moves in the avoidance stroke groove 2 1021 of the track stroke groove 2 102; because the rod body 9 of the fan ring shaping block 1 614 contacts with the control stroke groove 1012 to generate force three, and the rod body 9 of the fan ring shaping block 2 615 does not contact with the avoidance stroke groove 2 1021 to generate force, therefore, multiple The fan ring shaping block 2 615 is fixed, and the plurality of fan ring shaping blocks 1 614, driven by the force 3, will move along the guide groove 8 toward the side away from the rotating shaft 612, and first extend the plurality of fan ring shaping blocks 1 614 with longer arc lengths; then continue to rotate the rotating shaft 612 in the opposite direction, so that the rod body 9 of the fan ring shaping block 1 614 moves in the air avoidance control stroke groove 1 1012 of the track stroke groove 101, and the rod body 9 of the fan ring shaping block 2 615 moves in the control stroke groove 2 1022 of the track stroke groove 2 102 ; Since the rod body 9 of the fan ring shaping block 1 614 does not contact the air avoidance stroke groove 1 1012 to generate a force, and the rod body 9 of the fan ring shaping block 2 615 contacts the control stroke groove 2 1022 to generate a force four, therefore, multiple fan ring shaping blocks 1 614 are fixed, and multiple fan ring shaping blocks 2 615, driven by the force four, will move along the guide groove 8 toward the side away from the rotating shaft 612, and then retract multiple fan ring shaping blocks 2 615 with shorter arc lengths, so that the shaping disk device 6 is in an extended state.

[0027] This embodiment cleverly realizes the telescopic function of the shaping disk device by refining the design of the trajectory travel groove and utilizing the coordinated movement between the trajectory travel groove and the control travel groove and the rod body.

[0028] like Fig.11 and Fig.16 As shown, a plurality of conical blocks 15 are also arranged on the trajectory stroke control disk 613, and the plurality of conical blocks 15 are distributed along the circumference of the trajectory stroke control disk 613. In this embodiment, a total of three conical blocks 15 are arranged. The external pressure head 7 includes a ring body 711, and a conical surface 712 is arranged on the inner side surface of the ring body 711. When the external pressure head 7 is pressed down, the conical surface 712 of the ring body 711 cooperates with the conical surface of each conical block 15 to achieve fine adjustment of the center position of the external pressure head 7, thereby ensuring that the central axis of the ring body 711 coincides with the central axis of the cylinder 1 of the product to be processed, thereby improving the processing quality of the product. A flange 713 is also arranged on the outer side surface of the ring body 711. When the external pressure head 7 is pressed down, the bottom surface of the flange 713 contacts the outer top of the cylinder end surface, thereby using the flange 713 to cooperate with a plurality of fan ring shaping blocks to extrude and shape the cylinder end surface. The vertical spacing between the flange 713 and the bottom surface of the ring body 711 is set to H. When the external pressure head 7 is pressed downward, the bottom surface of the ring body 711 is in contact with the top surface of the fan ring forming block for limitation. Therefore, the vertical spacing H is actually the end face thickness A of the product after extrusion forming. Therefore, by adjusting the vertical spacing H, this embodiment can be applicable to the extrusion forming of products of various models and specifications, thereby improving the versatility of this embodiment.

[0029] In summary, the present invention can conveniently and quickly place the shaping disk device inside the cylinder to cooperate with the external pressure head to extrude and shape the end face of the cylinder by designing a retractable shaping disk device. During the placement and removal process, the cylinder will not be scratched, thereby improving the product quality of the cylinder and simplifying the operation, and reducing the labor intensity of the operator. By designing the specific structure of the shaping disk device, the retractable function of the shaping disk device is realized, thereby ensuring the smooth extrusion and shaping of the end face of the cylinder. By refining the design of the trajectory stroke groove, the coordinated movement between the trajectory stroke groove and the control stroke groove and the rod body is utilized, thereby cleverly realizing the retractable function of the shaping disk device.

[0030] The "multiple" mentioned in the embodiments refers to the number of "two or more". The above embodiments are only used to illustrate the present invention, not to limit the present invention. Those skilled in the relevant technical field can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the protection scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims

1. A shaping method for a metal-polymer structure preformed product, the metal-polymer structure preformed product comprising a cylinder, an upper end surface through hole arranged on the upper end surface of the cylinder, and a lower end surface through hole arranged on the lower end surface of the cylinder, the diameter of the upper end surface through hole and the diameter of the lower end surface through hole are both set to D1, the inner diameter of the inner cavity of the cylinder is set to D2, then D1<D2, characterized in that: The shaping method is to design a retractable shaping disk device. During shaping, the shaping disk device is first placed in a retracted state, and the shaping disk device is supported by a bracket, and then the cylinder of the metal-polymer structure preformed product is moved downward, and the end face through hole at one end of the cylinder is sleeved to the outer peripheral position of the shaping disk device in the retracted state, and then the shaping disk device is controlled to be in an extended state, and then the cylinder is continued to move downward, so that the shaping disk device in the extended state is against the inner bottom of the cylinder end face at the other end of the cylinder, and then the external pressure head is controlled to press down the outer top of the cylinder end face at the other end of the cylinder, so as to cooperate with the shaping disk device to extrude and shape the cylinder end face at the other end of the cylinder; after completion, the shaping disk device is controlled to be in a retracted state again, and it is taken out of the cylinder, and then the cylinder is reversed, and the cylinder end face at one end of the cylinder is extruded and shaped according to the above steps.

2. The shaping method according to claim 1, characterized in that: The shaping disk device comprises a chassis and a rotating shaft, one end of the rotating shaft is rotatably connected to the center position of the chassis, and a trajectory stroke control disk is also arranged on the other end of the rotating shaft, and the trajectory stroke control disk can be driven to rotate together with the rotation of the rotating shaft; a plurality of guide grooves are arranged on the chassis, each of which is arranged along the radial direction of the chassis, and a plurality of guide grooves are sequentially distributed on the chassis along the circumference of the chassis; the shaping disk device also comprises a plurality of fan ring shaping blocks 1 and fan ring shaping blocks 2, the arc length of the fan ring shaping block 1 is greater than the arc length of the fan ring shaping block 2, and when the shaping disk device is in an extended state, the plurality of fan ring shaping blocks 1 and fan ring shaping blocks 2 are enclosed along the circumference of the chassis to form a circular ring; each fan ring shaping block is slidably connected to a guide groove; a rod body is arranged on the top of each fan ring shaping block, and a plurality of trajectory stroke grooves are arranged on the trajectory stroke control disk, and the rod body on the top of each fan ring shaping block passes through a trajectory stroke groove and is slidably connected with the trajectory stroke groove; When it is necessary to control the shaping disk device to be in a retracted state, the rotating shaft is rotated to drive the trajectory stroke control disk to rotate, and the rod body at the top of the fan ring shaping block cooperates with the trajectory stroke groove on the trajectory stroke control disk, which can drive multiple fan ring shaping blocks to move along the guide groove toward the side close to the rotating shaft, so that the shaping disk device is in a retracted state; When it is necessary to control the shaping disk device to be in an extended state, just rotate the rotating shaft in the reverse direction to drive the trajectory stroke control disk to rotate in the reverse direction. Through the cooperation of the rod body at the top of the fan ring shaping block and the trajectory stroke groove on the trajectory stroke control disk, multiple fan ring shaping blocks can be driven to move along the guide groove toward the side away from the rotating shaft, so that the shaping disk device is in an extended state.

3. The shaping method according to claim 2, characterized in that: The specific steps of the shaping method are as follows: firstly, the bottom plate of the shaping disk device is supported by a bracket, and then the rotating shaft is rotated to make the shaping disk device in a retracted state; then, the cylinder is moved downward, and the end surface through hole at one end of the cylinder is sleeved to the outer peripheral position of the shaping disk device, at which time, the shaping disk device enters the cylinder inner cavity of the cylinder, and the rotating shaft of the shaping disk device is exposed outside the cylinder, and then the rotating shaft is rotated in the opposite direction to make the shaping disk device in an extended state, so that a plurality of fan ring shaping blocks are extended to enclose and form a circular ring ... The cylinder moves downward so that the top surfaces of the multiple sector-ring shaping blocks that form a circular ring are pressed against the inner bottom of the cylinder end surface at the other end of the cylinder, and then the external pressure head is controlled to press down the outer top of the cylinder end surface at the other end of the cylinder, thereby cooperating with the shaping disk device to extrude and shape the cylinder end surface at the other end of the cylinder; after completion, the shaping disk device is controlled to be in a retracted state again, taken out of the cylinder, and then the cylinder is turned over, and the cylinder end surface at one end of the cylinder is extruded and shaped according to the above steps.

4. The shaping method according to claim 3, characterized in that: The fan ring shaping block 1 and the fan ring shaping block 2 both include a fan ring block and a connecting block arranged on one side of the side plate, the rod body is arranged on the top of the connecting block, the arc length of the fan ring block of the fan ring shaping block 1 is greater than the arc length of the fan ring block of the fan ring shaping block 2; the multiple fan ring shaping blocks 1 and the fan ring shaping blocks 2 are alternately distributed along the circumference of the chassis, and when the shaping disk device is in an extended state, the fan ring blocks of the multiple fan ring shaping blocks 1 and the fan ring blocks of the fan ring shaping block 2 are enclosed along the circumference of the chassis to form a circle The track stroke groove comprises a plurality of track stroke grooves 1 and a plurality of track stroke grooves 2, and the plurality of track stroke grooves 1 and the plurality of track stroke grooves 2 are alternately distributed in sequence along the circumference of the track stroke control disk, the track stroke groove 1 is slidably connected with the rod body of the fan ring shaping block 1, and the track stroke groove 2 is slidably connected with the rod body of the fan ring shaping block 2; the track stroke groove 1 comprises an avoidance stroke groove 1 and a control stroke groove 1, and the track stroke groove 2 comprises an avoidance stroke groove 2 and a control stroke groove 2; When the rotating shaft is rotated, the trajectory stroke control disk rotates accordingly. At this time, the rod body of the fan ring shaping block is equivalent to the rod body of the fan ring shaping block. The rod body of the fan ring shaping block 1 moves from the avoidance stroke groove 1 of the trajectory stroke groove 1 to the control stroke groove 1, and the rod body of the fan ring shaping block 2 moves from the control stroke groove 2 of the trajectory stroke groove 2 to the avoidance stroke groove 2, so that the shaping disk device is in a retracted state through the cooperation between the rod body and the trajectory stroke groove on the trajectory stroke control disk; When the rotating shaft is rotated in the opposite direction, the trajectory stroke control disk rotates in the opposite direction accordingly. At this time, the rod body of the fan ring shaping block one, which is equivalent to the rod body of the fan ring shaping block, moves from the control stroke groove one of the trajectory stroke groove one toward the avoidance stroke groove one, and the rod body of the fan ring shaping block two moves from the avoidance stroke groove two of the trajectory stroke groove two toward the control stroke groove two, so that the shaping disk device is in an extended state through the cooperation between the rod body and the trajectory stroke groove on the trajectory stroke control disk.

5. The shaping method according to claim 4, characterized in that: When the rotating shaft is rotated, the rod body of the fan ring shaping block 1 moves in the avoidance stroke groove 1 of the track stroke groove 1, and the rod body of the fan ring shaping block 2 moves in the control stroke groove 2 of the track stroke groove 2; the rod body of the fan ring shaping block 1 does not contact the avoidance stroke groove 1 to generate a force, while the rod body of the fan ring shaping block 2 contacts the control stroke groove 2 to generate a force 1, so that the multiple fan ring shaping blocks 1 are fixed, and the multiple fan ring shaping blocks 2 are driven by the force 1 to move along the guide groove toward the side close to the rotating shaft, and the multiple fan ring shaping blocks 2 with shorter arc lengths are retracted first; Then continue to rotate the shaft, so that the rod body of the fan ring shaping block one moves in the control stroke groove one of the track stroke groove one, and the rod body of the fan ring shaping block two moves in the avoidance stroke groove two of the track stroke groove two; the rod body of the fan ring shaping block one contacts with the control stroke groove one to generate force two, while the rod body of the fan ring shaping block two does not contact with the avoidance stroke groove two to generate force, thereby fixing multiple fan ring shaping blocks two in place, and driven by the force two, multiple fan ring shaping blocks one will move along the guide groove toward the side close to the shaft, and then retract multiple fan ring shaping blocks one with longer arc lengths, so that the shaping disk device is in a retracted state.

6. The shaping method according to claim 4, characterized in that: When the shaft is rotated in the reverse direction, the rod body of the fan ring shaping block 1 moves in the control stroke groove 1 of the track stroke groove 1, and the rod body of the fan ring shaping block 2 moves in the avoidance stroke groove 2 of the track stroke groove 2; the rod body of the fan ring shaping block 1 contacts with the control stroke groove 1 to generate a force 3, while the rod body of the fan ring shaping block 2 does not contact with the avoidance stroke groove 2 to generate a force, thereby making the multiple fan ring shaping blocks 2 fixed and motionless, and the multiple fan ring shaping blocks 1 driven by the force 3 will move along the guide groove toward the side away from the shaft, and first extend the multiple fan ring shaping blocks 1 with longer arc lengths; Then continue to rotate the shaft in the opposite direction, so that the rod body of the fan ring shaping block one moves in the avoidance travel groove one of the track travel groove one, and the rod body of the fan ring shaping block two moves in the control travel groove two of the track travel groove two; the rod body of the fan ring shaping block one does not contact the avoidance travel groove one to generate a force, while the rod body of the fan ring shaping block two contacts the control travel groove two to generate a force four, thereby making multiple fan ring shaping blocks one fixed, and driven by the force four, multiple fan ring shaping blocks two will move along the guide groove toward the side away from the shaft, and then retract multiple fan ring shaping blocks two with shorter arc lengths, so that the shaping disk device is in an extended state.

7. The shaping method according to any one of claims 2 to 6, characterized in that: A plurality of conical blocks are also arranged on the trajectory stroke control disk, and the external pressure head includes a ring body, and a conical surface is arranged on the inner side surface of the ring body. When the external pressure head is pressed down, the conical surface of the ring body cooperates with the conical surfaces of the conical blocks, thereby ensuring that the central axis of the ring body coincides with the central axis of the cylinder.

8. A shaping disk device, characterized in that: It includes a chassis and a rotating shaft, one end of the rotating shaft is rotatably connected to the center position of the chassis, and a trajectory stroke control disk is also arranged on the other end of the rotating shaft, and the trajectory stroke control disk can be driven to rotate together with the rotation of the rotating shaft; a plurality of guide grooves are arranged on the chassis, each of which is arranged along the radial direction of the chassis and a plurality of guide grooves are sequentially distributed on the chassis along the circumference of the chassis; the shaping disk device also includes a plurality of fan ring shaping blocks 1 and fan ring shaping blocks 2, the arc length of the fan ring shaping block 1 is greater than the arc length of the fan ring shaping block 2; each fan ring shaping block is slidably connected to a guide groove; a rod body is arranged on the top of each fan ring shaping block, and a plurality of trajectory stroke grooves are arranged on the trajectory stroke control disk, and the rod body on the top of each fan ring shaping block passes through a trajectory stroke groove and is slidably connected with the trajectory stroke groove; thereby, the rod body cooperates with the trajectory stroke groove, so that a plurality of fan ring shaping blocks can move back and forth along the guide groove in succession.

9. The shaping disk device according to claim 8, characterized in that: The fan ring shaping block 1 and the fan ring shaping block 2 both include a fan ring block and a connecting block arranged on one side of the side plate, the rod body is arranged on the top of the connecting block, and a slider is arranged at the bottom of the fan ring block, which is slidably connected with the guide groove through the slider, so that the fan ring shaping block is slidably connected with the guide groove, and the arc length of the fan ring block of the fan ring shaping block 1 is greater than the arc length of the fan ring block of the fan ring shaping block 2; the multiple fan ring shaping blocks 1 and the fan ring shaping blocks 2 are alternately distributed in sequence along the circumference of the chassis, and when the shaping When the disk device is in an extended state, the fan ring blocks of the multiple fan ring shaping blocks one and the fan ring blocks of the fan ring shaping block two are surrounded along the circumference of the chassis to form a circular ring shape; the track travel groove includes multiple track travel grooves one and multiple track travel grooves two, and the multiple track travel grooves one and the multiple track travel grooves two are alternately distributed in sequence along the circumference of the track travel control disk, and the track travel groove one is slidably connected with the rod body of the fan ring shaping block one, and the track travel groove two is slidably connected with the rod body of the fan ring shaping block two.

10. The shaping disk device according to claim 9, characterized in that: The trajectory stroke groove 1 includes an avoidance stroke groove 1 and a control stroke groove 1, the avoidance stroke groove 1 and the control stroke groove 1 are connected and distributed in a V-shape, and the trajectory stroke groove 2 includes an avoidance stroke groove 2 and a control stroke groove 2, the avoidance stroke groove 2 and the control stroke groove 2 are connected and distributed in a V-shape.

Images