Check ring production equipment and production method
By combining the production methods of rolling molds and cutting molds on the retaining ring production equipment, the problem of easy deformation during the integrated stamping of small-size retaining rings is solved, and efficient and high-quality retaining ring production is achieved.
Patent Information
- Application Number
- CN202411532032.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-02-18
AI Technical Summary
In the prior art, when producing small-sized retaining rings, the retaining rings are easily deformed by integrated stamping, and the yield is low.
The production method of combining rolling molds and cutting molds is adopted. First, the semi-finished retaining ring is rolled by the rolling mold, and then the cut mold is used to cut to form a gap to complete the production of the retaining ring.
It effectively solves the problem of easy deformation during the integrated stamping of small-size retaining rings, improves the yield rate, and ensures the quality and production efficiency of the retaining rings through the coordination of the guide mechanism and the high-pressure air pipe.
Smart Images
Figure CN119456882A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of stamping technology, and in particular to a retaining ring production device and a production method. Background Art
[0002] Retaining rings are often used on the ends of shafts or sleeves, and a notch is provided on the end of the retaining ring to facilitate the removal of the retaining ring. The position of the notch on the end of the retaining ring is different depending on the place of use. In the past, retaining rings were produced by integral stamping through a stamping die. There is no problem with stamping large-sized retaining rings, but for small-sized retaining rings, due to the small inner and outer diameters of the retaining rings and their relatively thin size, the retaining rings are easily deformed after integral stamping, and the yield rate is low. Summary of the invention
[0003] In order to solve the above technical problems, the present invention provides a retaining ring production equipment and production method. By coordinating the rolling mold and the cutting mold, the retaining ring production method is changed to solve the problems of easy deformation and low yield rate in the integrated stamping production process of small-sized retaining rings.
[0004] In order to solve the above technical problems, the present invention provides a technical solution: a retaining ring production equipment, including a spring coiling machine, a coiling die and a cutting die, the spring coiling machine includes a feeding mechanism and a reciprocating mechanism, and is characterized in that: The rolling die and the cutting die are arranged on the spring coiling machine, the rolling die comprises a rolling die core and a rolling guide die, a discharge channel is arranged at the axis of the rolling die core, the discharge channel is perpendicular to the spring coiling machine and is connected with the feeding mechanism on the spring coiling machine, an arc guide groove is arranged at one end of the rolling guide die, and the arc guide groove is located in front of and corresponds to the discharge channel, the upper side of the rolling die core is cut into an inclined surface, and the cutting die is located at the bottom side of the inclined surface; The cutting die comprises a cutting upper die and a cutting lower die, the cutting lower die is fixed on the spring coiling machine, the cutting upper die is arranged on the reciprocating mechanism on the spring coiling machine, and is located directly above the cutting lower die, and reciprocates up and down under the action of the reciprocating mechanism, and the upper plane of the cutting lower die and the bottom below the inclined surface are higher than the discharge channel; The cutting upper die comprises a base, a pressing plate, a mold core and a guide device, wherein the pressing plate is connected to the base through a guide mechanism, and a spring is arranged on the guide mechanism between the pressing plate and the base, so that the pressing plate is always pushed away from the base when it moves axially along the guide mechanism, and a through hole is arranged on the pressing plate, one end of the mold core is connected to the base, and the other end of the mold core extends into the through hole, and when the pressing plate moves toward the base, the other end of the mold core extends out of the through hole and penetrates the pressing plate; The cutting lower die is provided with a die hole and a countersunk hole, the die hole is matched with the die core clearance, the countersunk hole is matched with the guide mechanism, the die hole passes through the cutting lower die, and is connected with the discharge hole provided on the cutting lower die.
[0005] Furthermore, a lap plate is provided between the cutting lower die and the bottom of the inclined surface.
[0006] Furthermore, the guide mechanism includes a guide column and a limiting screw, one end of the guide column is connected to the base, the other end of the guide column passes through the pressure plate, and the threaded end of the limiting screw passes through the pressure plate and is screwed to the base.
[0007] Furthermore, a fastening nut is provided at the threaded end of the limiting screw.
[0008] Furthermore, one end of the mold core extends into the fixing hole on the base and is fastened by the mold core fixing bolt; the mold hole is removably embedded in the mounting hole on the cutting lower mold through the mounting block and is fastened by the mold hole fixing bolt, and the upper plane of the mounting block is higher than the upper plane of the cutting lower mold.
[0009] Furthermore, the discharge hole is arranged obliquely on the cutting lower die, and a waste slide is arranged in the discharge hole.
[0010] Furthermore, the cutting lower die is provided with a high-pressure air pipe extending from the die hole toward the inclined surface, and a retaining ring slide is provided on one side of the top of the inclined surface.
[0011] Furthermore, the cutting lower die is provided with a cleaning air pipe connected with the die hole.
[0012] In order to solve the above technical problem, another technical solution provided by the present invention is: according to the production method of the above production equipment, the steps are: The semi-finished retaining ring is rolled by using a spring coiling machine and a rolling die: under the action of the feeding mechanism, the wire moves from the discharge channel to the rolling guide die 2, the end of the wire is pressed against the arc guide groove 4, and under the action of the arc guide groove, it is bent and moved toward the cutting lower die 8 and the inclined surface 5 and rolled into a semi-finished retaining ring; The retaining ring body is cut by the cutting die: the cutting upper die 7 moves downward under the action of the reciprocating mechanism, the pressing plate 72 presses the semi-finished retaining ring onto the mounting block 84, the base, the guide column and the limit screw continue to move downward, the spring is compressed, until the semi-finished retaining ring is cut and the notch C is cut out under the action of the mold core 73 and the mold hole 81, the waste is discharged from the discharge hole 83 and the waste slide, the retaining ring is made, the base is reset upward, the pressing plate is reset under the action of the spring, the sensor detects that the base is reset, the high-pressure air pipe discharges high-pressure gas, blows the retaining ring into the retaining ring slide and slides it into the storage box.
[0013] Furthermore, after the high-pressure gas is discharged from the high-pressure gas pipe, the cleaning gas pipe discharges the high-pressure gas to clean the inside of the mold hole with high-pressure gas.
[0014] The beneficial effects of the present invention are: 1. The present application adds a rolling die and a cutting die to the spring coiling machine, thereby changing the production method of the retaining ring from one-piece stamping to first rolling the retaining ring body into shape and then cutting it through a cutting die to form a notch, thereby completing the production of the retaining ring, thereby solving the problem that small-sized retaining rings are easily deformed when produced by the existing one-piece stamping production method.
[0015] 2. In the present application, when the wire moves from the discharge channel to the rolling guide die, it moves toward the lower die and the inclined surface under the guidance of the arc guide groove and is rolled into a retaining ring body. The upper die moves downward so that the pressure plate presses the retaining ring body on the lower die, and then the upper die continues to move downward. Under the action of the die core and the die hole, the retaining ring body is cut to complete the production of the retaining ring. The spring keeps the pressure plate pressed on the retaining ring body to prevent the retaining ring body from moving during cutting, thereby ensuring the quality of the retaining ring.
[0016] 3. In the present application, the guide column and the limit screw form a guiding mechanism, and the distance between the pressure plate and the base can be adjusted by the limit screw so that the end of the mold core is in the through hole to protect the mold core. The spring is sleeved on the guide column, and the guide column and the limit screw together play a guiding role in the reciprocating movement of the pressure plate, and the guide column is always in a state of extending out of the pressure plate and extending into the countersunk hole, guiding the up and down movement of the upper mold; the shape of the through hole on the pressure plate is matched with the shape of the mold core to guide and limit the mold core, stabilize the mold core, and ensure the cutting quality; the threaded end of the limit screw is provided with a fastening nut, which plays a double nut reinforcement role and solves the problem of single nut easy loosening during use.
[0017] 4. In the present application, the lap plate is provided to connect the cutting lower die and the inclined surface, so that the bent wire can pass through the inclined surface under the guidance of the lap plate, forming a slight up and down misalignment to avoid interference with the discharge channel.
[0018] 5. In the present application, the mold core is detachably connected to the base through the mold core fixing bolts, and the mold hole is detachably connected to the cutting lower mold through the mold hole fixing bolts, which is convenient for replacing different mold cores according to retaining rings of different sizes and has a wide range of adaptability.
[0019] 6. In the present application, the discharge hole is arranged obliquely on the cutting lower die, so that the cut waste can be directly discharged through the discharge hole and the waste slideway in a direction, with a simple structure and easy use.
[0020] 7. In the present application, the high-pressure air pipe is directed from the die hole toward the inclined surface. After the pressing plate is reset, the finished retaining ring is placed on the mounting block. High-pressure gas is sprayed out through the high-pressure air pipe to blow the retaining ring along the inclined surface into the retaining ring slideway, and the retaining ring is collected and stored through the retaining ring slideway.
[0021] 8. In this application, the cleaning air pipe is connected to the die hole. After the retaining ring is blown off by the high-pressure air pipe, the cleaning pipe discharges the high-pressure gas to clean the die hole to prevent waste from clogging the die hole.
[0022] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only eight of the drawings of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0024] Figure 1 This is a schematic diagram of the structure of this application.
[0025] Figure 2 It is a schematic diagram of the structure of the cutting upper die.
[0026] Figure 3 This is the assembly diagram of the cutting upper die.
[0027] Figure 4 It is a schematic diagram of the structure of the cutting lower die.
[0028] Figure 5 This is the assembly diagram of the cutting lower die.
[0029] Figure 6 It is a schematic diagram of the structure when the wire passes through the arc guide groove.
[0030] Figure 7 This is a schematic diagram of the structure used in this application.
[0031] Figure 8 It is a structural diagram of the retaining ring.
[0032] In the figure, 1-rolling mold core, 2-rolling guide mold, 3-discharging channel, 4-arc guide groove, 5-inclined surface, 6-lap plate, 7-cutting upper mold, 8-cutting lower mold, 9-high pressure air pipe, 10-retaining ring slide, 11-cleaning air pipe, 12-opening, 13-waste slide; 71-base, 72-pressing plate, 73-mold core, 74-spring, 75-through hole, 76-guide column, 77-limiting screw, 78-fastening nut, 79-mold core fixing bolt; 81-die hole, 82-sink hole, 83-discharge hole, 84-mounting block, 85-mounting hole, 86-die hole fixing bolt; A-wire, B-retaining ring, C-notch, D-spring coiling machine, E-feeding mechanism, F-reciprocating mechanism. DETAILED DESCRIPTION
[0033] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.
[0034] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders. In addition, the method embodiments may include additional steps or omit the steps shown. The scope of the present invention is not limited in this respect.
[0035] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information. Embodiment 1
[0036] like Figure 1-8 As shown, a retaining ring production equipment includes a spring coiling machine D, a coiling die and a cutting die. The spring coiling machine D includes a feeding mechanism E and a reciprocating mechanism F, and is characterized in that: The rolling die and the cutting die are arranged on the spring coiling machine D. The rolling die includes a rolling die core 1 and a rolling guide die 2. A discharge channel 3 is arranged at the axis of the rolling die core 1. The discharge channel 3 is perpendicular to the spring coiling machine D and is connected to the feeding mechanism E on the spring coiling machine D. An arc guide groove 4 is arranged at one end of the rolling guide die 2. The arc guide groove 4 is located in front of and corresponds to the discharge channel 3. The wire A removed from the discharge channel 3 is convenient to bend and move toward the cutting lower die 8 and the inclined surface 5 under the guidance of the arc guide groove 4 and be rolled into a semi-finished retaining ring; the upper side of the rolling die core 1 is cut into an inclined surface 5, and the cutting die is located at the bottom side of the inclined surface 5, so that the ... The semi-finished retaining ring is offset from the discharge channel 3 up and down to prevent obstruction and interference; the cutting mold includes a cutting upper mold 7 and a cutting lower mold 8, the cutting lower mold 8 is fixed on the spring coiling machine D, and the cutting upper mold 7 is arranged on the reciprocating mechanism F on the spring coiling machine D, and is located directly above the cutting lower mold 8, and reciprocates up and down under the action of the reciprocating mechanism F; through the cooperation between the rolling mold and the cutting mold, the semi-finished retaining ring is first rolled into shape and then cut through the cutting mold to form a notch C, completing the production of the retaining ring B, and the step-by-step production solves the problem that the small-sized retaining ring B is easily deformed when produced by the existing stamping one-piece molding production method.
[0037] The cutting upper mold 7 includes a base 71, a pressure plate 72, a mold core 73 and a guide device. The pressure plate 72 is connected to the base 71 through a guide mechanism. A spring 74 is provided on the guide mechanism between the pressure plate 72 and the base 71, so that the pressure plate 72 is always pushed away from the base 71 when it moves axially along the guide mechanism. A through hole 75 is provided on the pressure plate 72. One end of the mold core 73 is connected to the base 71, and the other end of the mold core 73 extends into the through hole 75. When the pressure plate 72 moves toward the base 71, the other end of the mold core 73 extends out of the through hole 75 and penetrates the pressure plate 72; the distance between the pressure plate 72 and the base 71 can be adjusted by the limit screw 77 so that the mold The end of the core 73 is in the through hole 75 to protect the mold core 73. The spring 74 is sleeved on the guide column 76. The guide column 76 and the limit screw 77 together play a guiding role in the reciprocating movement of the pressure plate 72, and the guide column 76 is always in a state of extending out of the pressure plate 72 and extending into the countersunk hole 82, guiding the up and down movement of the upper mold; the shape of the through hole 75 on the pressure plate 72 matches the shape of the mold core 73, guiding and limiting the mold core 73, stabilizing the mold core 73 and ensuring the cutting quality; the threaded end of the limit screw 77 is provided with a fastening nut 78, which plays a double nut reinforcement role and solves the problem of single nut easy loosening during use.
[0038] A die hole 81 and a countersunk hole 82 are provided on the cutting lower die 7. The die hole 81 is clearance-matched with the die core 73, so that the die core 73 can be inserted into the die hole 81 for cutting and punching the notch C. The countersunk hole 82 is matched with the guide mechanism, so that the guide column 76 and the limit screw 77 can be inserted into the countersunk hole 82 for guiding. The die hole 81 passes through the cutting lower die 7 and is connected with the discharge hole 83 provided on the cutting lower die 7. The discharge hole 83 is inclined on the cutting lower die 7, and a waste slide 13 is provided in the discharge hole 83; the cut waste can be directly discharged and stored through the discharge hole 83 in a directional manner, and the structure is simple and easy to use.
[0039] The guide mechanism includes a guide column 76 and a limit screw 77 . One end of the guide column 76 is connected to the base 71 , and the other end of the guide column 76 passes through the pressure plate 72 . The threaded end of the limit screw 77 passes through the pressure plate 72 and is screwed to the base 71 . Embodiment 2
[0040] like Figure 1-3 As shown, this embodiment is obtained by adding technical features such as a fastening nut 78 and a lap plate 6 on the basis of the first embodiment. The remaining technical features are the same as those of the first embodiment, and the similarities are not repeated here. Among them, the difference between this embodiment and the first embodiment is that a fastening nut 78 is provided at the threaded end of the limiting screw 77; and a lap plate 6 is provided between the cutting lower mold 7 and the bottom of the inclined surface 5.
[0041] In this embodiment, a fastening nut 78 is provided at the threaded end of the limiting screw 77, which plays a double nut reinforcement role and solves the problem that the single nut is easy to loosen during use; the lap plate 6 is set to connect the cutting lower mold 7 and the inclined surface 5, so that the bent wire A passes through the inclined surface 5 under the guidance of the lap plate 6, forming a slight up and down misalignment, thereby avoiding interference with the discharge channel 3. Embodiment 3
[0042] like Figure 2-6 As shown, this embodiment is obtained by adding technical features such as a mold core 73 fixing bolt and a mounting block 84 on the basis of the second embodiment. The remaining technical features are the same as those of the second embodiment, and the similarities are not repeated here. The difference between this embodiment and the second embodiment is that one end of the mold core 73 extends into the fixing hole on the base 71 and is fastened by the mold core fixing bolt 79; the mold hole 81 is detachably embedded in the mounting hole 85 on the cutting lower mold 7 through the mounting block 84, and is fastened by the mold hole fixing bolt 86, and the upper plane of the mounting block 84 is higher than the upper plane of the cutting lower mold 7.
[0043] In this embodiment, the mold core 73 is detachably connected to the base 71 via the mold core fixing bolts 79, and the mold hole 81 is detachably connected to the cutting lower mold 7 via the mold hole fixing bolts 86, so that different mold cores 73 can be replaced according to different sizes of retaining rings B, and the adaptability is wide. Embodiment 4
[0044] like Figure 2-6 As shown, this embodiment is obtained by adding technical features such as a high-pressure air pipe 9, a retaining ring slide 10 and a cleaning air pipe 11 on the basis of the third embodiment. The remaining technical features are the same as those of the third embodiment, and the similarities are not repeated here. Among them, the difference between this embodiment and the third embodiment is that a high-pressure air pipe 9 is provided at the cutting lower die 8, extending from the die hole 81 toward the inclined surface 5, and a retaining ring slide 10 is provided on the top side of the inclined surface 5.
[0045] The cutting lower die 8 is provided with a cleaning air pipe 11 which is connected with the die hole 81 .
[0046] In this embodiment, the high-pressure air pipe 9 is directed from the mold hole 81 toward the inclined surface 5. After the pressure plate 72 is reset, the manufactured retaining ring B is placed on the mounting block 84. High-pressure gas is ejected through the high-pressure air pipe 9 to blow the retaining ring B into the retaining ring slide 10 along the inclined surface 5, and the retaining ring B is collected and stored through the retaining ring slide 10. At the same time, one side of the retaining ring slide 10 has an opening 12, and the opening 12 is located between the rolling guide die 2, the rolling die core 1 and the spring winding machine D, so that the retaining ring B can fall into the retaining ring slide 10 through the opening 12.
[0047] Among them, the cleaning air pipe 11 is connected with the mold hole 81. After the high-pressure air pipe 9 blows off the retaining ring B, the cleaning pipe 11 discharges high-pressure gas to clean the mold hole 81. Since the high-pressure air pipe 9 is perpendicular to the mold hole 81, the discharge hole 83 and the waste slide 13 can also be cleaned under the action of the high-pressure gas to prevent waste from clogging.
[0048] The use process of the technical solution formed by the above embodiments is another technical solution disclosed in the present application, which is: a method for producing a retaining ring, using a spring coiling machine D and a coiling die to coil a semi-finished retaining ring: under the action of a feeding mechanism E, the wire A moves from a discharge channel 3 to a coiling guide die 2, and the end of the wire A presses on the arc guide groove 4, and under the action of the arc guide groove 4, it bends and moves toward the cutting lower die 8 and the inclined surface 5 and is coiled into a semi-finished retaining ring; The retaining ring body is cut by the cutting mold: the cutting upper mold 7 moves downward under the action of the reciprocating mechanism F, the pressing plate 72 presses the semi-finished retaining ring on the mounting block 84, the base 71, the guide column 76 and the limit screw 77 continue to move downward, and the spring 74 is compressed until the semi-finished retaining ring is cut and the notch C is cut out under the action of the mold core 73 and the mold hole 81, and the waste is discharged from the discharge hole 83 and the waste slide 13, completing the production of the retaining ring B, the base 71 resets upward, and the pressing plate 72 resets under the action of the spring 74. After the sensor detects that the base 71 is reset, the high-pressure air pipe 9 discharges high-pressure gas, blows the retaining ring B into the retaining ring slide 10 and slides it into the storage box.
[0049] After the high-pressure gas is discharged from the high-pressure gas pipe 9 , the cleaning gas pipe 11 discharges the high-pressure gas to clean the inside of the mold hole 81 with high-pressure gas.
[0050] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims
1. A retaining ring production equipment, comprising a spring coiling machine, a coiling die and a cutting die, wherein the spring coiling machine comprises a feeding mechanism and a reciprocating mechanism, and is characterized in that: The rolling die and the cutting die are arranged on the spring coiling machine, the rolling die comprises a rolling die core and a rolling guide die, a discharge channel is arranged at the axis of the rolling die core, the discharge channel is perpendicular to the spring coiling machine and is connected with the feeding mechanism on the spring coiling machine, an arc guide groove is arranged at one end of the rolling guide die, and the arc guide groove is located in front of and corresponds to the discharge channel, the upper side of the rolling die core is cut into an inclined surface, and the cutting die is located at the bottom side of the inclined surface; The cutting die comprises a cutting upper die and a cutting lower die, the cutting lower die is fixed on the spring coiling machine, the cutting upper die is arranged on the reciprocating mechanism on the spring coiling machine, and is located directly above the cutting lower die, and reciprocates up and down under the action of the reciprocating mechanism, and the upper plane of the cutting lower die and the bottom below the inclined surface are higher than the discharge channel; The cutting upper die comprises a base, a pressing plate, a mold core and a guide device, wherein the pressing plate is connected to the base through a guide mechanism, and a spring is arranged on the guide mechanism between the pressing plate and the base, so that the pressing plate is always pushed away from the base when it moves axially along the guide mechanism, and a through hole is arranged on the pressing plate, one end of the mold core is connected to the base, and the other end of the mold core extends into the through hole, and when the pressing plate moves toward the base, the other end of the mold core extends out of the through hole and penetrates the pressing plate; The cutting lower die is provided with a die hole and a countersunk hole, the die hole is matched with the die core clearance, the countersunk hole is matched with the guide mechanism, the die hole passes through the cutting lower die, and is connected with the discharge hole provided on the cutting lower die.
2. The retaining ring production equipment according to claim 1 is characterized in that: A lap plate is arranged between the cutting lower die and the bottom of the inclined surface.
3. The retaining ring production equipment according to claim 1 is characterized in that: The guide mechanism comprises a guide column and a limiting screw, one end of the guide column is connected to the base, the other end of the guide column passes through the pressing plate, and the threaded end of the limiting screw passes through the pressing plate and is screwed to the base.
4. The retaining ring production equipment according to claim 3 is characterized in that: The threaded end of the limiting screw is provided with a fastening nut.
5. The retaining ring production equipment according to claim 1 is characterized in that: One end of the mold core extends into the fixing hole on the base and is fastened by the mold core fixing bolt; the mold hole is detachably embedded in the mounting hole on the cutting lower mold through the mounting block and is fastened by the mold hole fixing bolt, and the upper plane of the mounting block is higher than the upper plane of the cutting lower mold.
6. The retaining ring production equipment according to claim 1 is characterized in that: The discharge hole is arranged obliquely on the cutting lower die, and a waste slideway is arranged in the discharge hole.
7. The retaining ring production equipment according to claim 1 is characterized in that: The cutting lower die is provided with a high-pressure air pipe extending from the die hole toward the inclined surface, and a retaining ring slideway is provided on one side of the top of the inclined surface.
8. The retaining ring production equipment according to claim 1 is characterized in that: The cutting lower die is provided with a cleaning air pipe which is communicated with the die hole.
9. The method for producing a production device according to any one of claims 1 to 8, comprising the steps of: The semi-finished retaining ring is rolled by using a spring coiling machine and a rolling die: under the action of the feeding mechanism, the wire moves from the discharge channel to the rolling guide die 2, the end of the wire is pressed against the arc guide groove 4, and under the action of the arc guide groove, it is bent and moved toward the cutting lower die 8 and the inclined surface 5 and rolled into a semi-finished retaining ring; The retaining ring body is cut by the cutting die: the cutting upper die 7 moves downward under the action of the reciprocating mechanism, the pressing plate 72 presses the semi-finished retaining ring onto the mounting block 84, the base, the guide column and the limit screw continue to move downward, the spring is compressed, until the semi-finished retaining ring is cut and the notch C is cut out under the action of the mold core 73 and the mold hole 81, the waste is discharged from the discharge hole 83 and the waste slide, the retaining ring is made, the base is reset upward, the pressing plate is reset under the action of the spring, the sensor detects that the base is reset, the high-pressure air pipe discharges high-pressure gas, blows the retaining ring into the retaining ring slide and slides it into the storage box.
10. A method for producing a retaining ring according to claim 1, characterized in that: After the high-pressure gas is discharged from the high-pressure gas pipe, the high-pressure gas is discharged from the cleaning gas pipe to clean the inside of the mold hole with high-pressure gas.