Alloy chilling cast iron valve tappet machine method

Abstract

The invention discloses an alloy chilling cast iron valve tappet manufacturing method, and relates to the technical field of valve tappet manufacturing, the alloy chilling cast iron valve tappet manufacturing method comprises a rack, a fixed mold is fixedly mounted in the rack, a movable mold is slidably connected in the rack, a feeding mechanism is jointly arranged on the opposite sides of the fixed mold and the movable mold, the feeding mechanism comprises a groove, and the groove is internally provided with a feeding mechanism; a groove is formed in the surface of the fixed die, a movable frame is slidably connected to the interior of the groove, and rotating shafts are rotatably connected to the two sides of the interior of the movable frame. According to the valve tappet cold pressing machine, feeding and discharging work can be automatically conducted while the movable die acts, the structure is simple, use of equipment such as a feeding mechanical arm is omitted, the feeding speed and the discharging speed can be effectively increased, the cold pressing work frequency is effectively increased, and therefore the production efficiency of valve tappets is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of valve tappet manufacturing technology, specifically to a method for manufacturing alloy chilled cast iron valve tappets. Background Technology

[0002] Alloy chilled cast iron valve tappets are high-performance, wear-resistant components specifically designed for engine valve mechanisms. Through innovations in materials science and manufacturing processes, alloy chilled cast iron valve tappets have become an indispensable high-performance component in engine valve mechanisms. Their excellent wear resistance, thermal fatigue resistance, and cost-effectiveness provide strong support for the efficient and reliable operation of modern engines.

[0003] In the process of cryogenic casting, alloy chilled cast iron valve tappets need to be formed using cold extrusion equipment. However, existing cold extrusion equipment often uses a loading robot for feeding valve tappets. This reduces the forming frequency of valve tappets, thus affecting the production efficiency of alloy chilled cast iron valve tappets.

[0004] Combining the above issues, we find that the existing cold extrusion equipment for alloy chilled cast iron valve tappets on the market is difficult to avoid the problems mentioned above when in use. Even if the problems can be solved, they require the use of external tools, which cannot achieve the desired effect. Therefore, we propose a method for using an alloy chilled cast iron valve tappet machine. Summary of the Invention

[0005] The purpose of this invention is to provide a method for a machine for rapidly chilling cast iron valve tappets to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an alloy chilled cast iron valve tappet machine, comprising a frame, a fixed mold fixedly installed inside the frame, a movable mold slidably connected inside the frame, and a feeding mechanism being provided on the opposite side of the fixed mold and the movable mold.

[0007] The feeding mechanism includes a groove, which is formed on the surface of the fixed mold. A movable frame is slidably connected inside the groove. Rotary shafts are rotatably connected to both sides inside the movable frame. Guide rollers are fixedly sleeved on the surface of the rotating shafts. A conveyor belt is sleeved on the surface of the two guide rollers together. A transmission component and a centering component are provided at the bottom of the moving mold. The transmission component works in conjunction with the rotating shafts. The centering component works in conjunction with the groove. A slope is formed on the side of the fixed mold surface opposite to the groove.

[0008] Preferably, a first positioning rod is fixedly connected to the bottom of the movable frame, a first spring is slidably sleeved on the surface of the first positioning rod, one end of the first spring is fixedly connected to the bottom of the movable frame, the other end of the first spring is fixedly connected to the inner wall of the groove, a connecting block is fixedly installed at one end of the first positioning rod, a connecting groove is provided inside the groove, and the connecting block is slidably connected inside the connecting groove.

[0009] Preferably, the transmission assembly includes a vertical rod slidably connected to the bottom of the moving mold, a toothed plate fixedly installed on one side of the vertical rod, one end of one of the rotating shafts passing through the moving frame, and a gear fixedly sleeved on one end of another rotating shaft. The gear cooperates with the toothed plate. A guide groove is provided on the inner wall of the groove, and a guide rod is fixedly connected to the other side of the vertical rod. One end of the guide rod is slidably connected inside the guide groove.

[0010] Preferably, the bottom of the moving mold is provided with a first sliding groove, a first slider is slidably connected inside the first sliding groove, a connecting rod is fixedly connected to the bottom of the first slider, one end of the connecting rod passes through the first sliding groove and is slidably connected to the inner cavity of the first sliding groove, a bolt is rotatably connected to one side of the connecting rod, and one end of the bolt passes through the connecting rod and is threadedly connected to the vertical rod.

[0011] Preferably, a support rod is fixedly connected to the bottom of the connecting rod, a support groove is provided at the top of the vertical rod, and one end of the support rod passes through the support groove and is slidably connected to the inner cavity of the support groove.

[0012] Preferably, the alignment component includes a support plate, which is slidably connected to the bottom of the moving mold. A sleeve is fixedly connected to one side of the bottom of the support plate. A second spring is fixedly connected inside the sleeve. A rod is fixedly connected to one end of the second spring. One end of the rod passes through the sleeve and is slidably connected to the inner cavity of the sleeve. A trapezoidal block is fixedly connected to one end of the rod. The trapezoidal block is used in conjunction with a groove.

[0013] Preferably, a limiting block is fixedly installed on the inner wall of the sleeve, and a limiting groove is formed on the surface of the sleeve rod, with the inner cavity of the limiting groove slidingly connected to the surface of the limiting block.

[0014] Preferably, the bottom of the moving mold is provided with a second slide groove, and two second sliders are fixedly installed on the other side of the top of the support plate. Both second sliders are slidably connected inside the second slide groove. A third spring is fixedly connected inside the second slide groove, and one end of the third spring is fixedly connected to one side of one of the second sliders.

[0015] Preferably, a second positioning rod is fixedly connected inside the second groove, one end of the second positioning rod passes through the third spring and the second slider, and the surface of the second positioning rod is slidably connected to the inner cavity of the third spring and the second slider.

[0016] A method for using an alloy chilled cast iron valve tappet includes the following steps:

[0017] S1. Raw material preparation: Cut the casting into blanks of appropriate size, and subject the blanks to spheroidizing annealing to eliminate internal stress and improve machinability;

[0018] S2, Feeding: Place multiple processed blanks sequentially onto the conveyor belt;

[0019] S3. Conveying: The moving mold moves upward, and through the cooperation of the guide rod and the guide groove, the vertical rod moves to a position flush with the gear. When the moving mold moves upward, the toothed plate contacts the gear. The vertical rod drives the toothed plate to move, and the toothed plate drives the gear to rotate. This causes the gear to drive the guide roller to rotate, so that the conveyor belt can carry the blank and move the blank onto the moving mold.

[0020] S4. Mold Closure: The moving mold moves and closes with the fixed mold. When the moving mold moves downward, the vertical rod and gear are misaligned under the guidance of the guide rod and guide groove to avoid contact between the gear plate and the gear. At the same time, the trapezoidal block contacts the blank and pushes the blank to the center position on the surface of the fixed mold. While the moving mold and the fixed mold are closing, the trapezoidal block enters the interior of the groove under the pressure of the inner wall of the groove to avoid affecting the mold closing operation of the moving mold and the fixed mold.

[0021] S5. Discharge: After the billet is cold extruded and formed, the moving mold returns to its original position. At this time, the vertical rod is once again aligned with the gear. As the moving mold returns to its original position, the next billet moves to the surface of the fixed mold. When the mold closes again, the trapezoidal block pushes the billet again and pushes the previously formed valve tappet towards the ramp through the billet. The formed valve tappet is then discharged from the ramp.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. By setting up a feeding mechanism, the present invention can automatically perform feeding and unloading operations while the moving mold is moving during the cold extrusion of valve tappets. This not only simplifies the structure and eliminates the need for equipment such as feeding robotic arms, but also effectively increases the feeding and unloading speed, thereby increasing the frequency of cold extrusion operations and thus effectively improving the production efficiency of valve tappets.

[0024] 2. When the moving mold moves upward, the present invention can rotate the shaft through the transmission component so that the conveyor belt can transport the blank to the fixed mold. When the mold is closed, the blank is moved to the center position on the fixed mold by the alignment component so as to perform the forming work of the valve tappet and at the same time perform the unloading work of the previous valve tappet. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic cross-sectional view of the present invention;

[0027] Figure 3 This is a schematic diagram of the fixed mold structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the groove structure of the present invention;

[0029] Figure 5 For the present invention Figure 4 A magnified structural diagram of part A;

[0030] Figure 6 This is a schematic diagram of the guide groove structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the vertical rod structure of the present invention;

[0032] Figure 8 This is a schematic diagram of the alignment component structure of the present invention.

[0033] In the diagram: 1. Frame; 101. Fixed mold; 102. Moving mold; 2. Feeding mechanism; 21. Groove; 2101. First spring; 2102. First positioning rod; 2103. Connecting block; 2104. Connecting groove; 22. Moving frame; 2201. Rotating shaft; 2202. Guide roller; 2203. Conveyor belt; 23. Transmission assembly; 2301. Vertical rod; 2302. Toothed plate; 2303. Gear; 2304. Guide groove; 2305. Guide rod; 2306. First... 1. Slide groove; 2307. First slider; 2308. Connecting rod; 2309. Bolt; 2310. Support rod; 2311. Support groove; 24. Alignment assembly; 2401. Support plate; 2402. Sleeve; 2403. Second spring; 2404. Sleeve rod; 2405. Trapezoidal block; 2406. Limiting block; 2407. Limiting groove; 2408. Second slide groove; 2409. Second slider; 2410. Second positioning rod; 2411. Third spring; 25. Inclined ramp. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figures 1-8 The present invention provides a technical solution: an alloy chilled cast iron valve tappet machine, including a frame 1, a fixed mold 101 fixedly installed inside the frame 1, a movable mold 102 slidably connected inside the frame 1, and a feeding mechanism 2 is provided on the opposite side of the fixed mold 101 and the movable mold 102.

[0036] The feeding mechanism 2 includes a groove 21, which is formed on the surface of the fixed mold 101. A movable frame 22 is slidably connected inside the groove 21. A rotating shaft 2201 is rotatably connected to both sides inside the movable frame 22. A guide roller 2202 is fixedly sleeved on the surface of the rotating shaft 2201. A conveyor belt 2203 is sleeved on the surface of the two guide rollers 2202. A transmission component 23 and a straightening component 24 are provided at the bottom of the moving mold 102. The transmission component 23 is used in conjunction with the rotating shaft 2201, and the straightening component 24 is used in conjunction with the groove 21. A slope 25 is formed on the side of the fixed mold 101 opposite to the groove 21.

[0037] By placing the blank on the conveyor belt 2203, when the moving mold 102 moves upward, the transmission assembly 23 drives the rotating shaft 2201 to rotate. The rotating shaft 2201 drives the guide roller 2202 to rotate, and the guide roller 2202 drives the conveyor belt 2203 to move, so that the blank is moved to the surface of the fixed mold 101 via the conveyor belt 2203. Then the moving mold 102 and the fixed mold 101 close. When the moving mold 102 moves downward, the transmission assembly 23 no longer drives the rotating shaft 2201, and at the same time, the alignment assembly 24 and the blank... The mold contacts the fixed mold 101 to move the blank to the center position on the surface of the fixed mold 101, and then the mold closing operation is completed to complete the forming of the valve tappet. Then the moving mold 102 separates from the fixed mold 101, and when the moving mold 102 moves upward, the next blank is loaded. When the moving mold 102 and the fixed mold 101 close again, the alignment component 24 aligns the next blank, and the next blank pushes the formed valve tappet towards the ramp 25 so that the formed valve tappet is discharged from the ramp 25 to complete the unloading operation.

[0038] As a further limitation of the feeding mechanism 2 of the present invention, a first positioning rod 2102 is fixedly connected to the bottom of the movable frame 22, and a first spring 2101 is slidably sleeved on the surface of the first positioning rod 2102. One end of the first spring 2101 is fixedly connected to the bottom of the movable frame 22, and the other end of the first spring 2101 is fixedly connected to the inner wall of the groove 21. A connecting block 2103 is fixedly installed on one end of the first positioning rod 2102, and a connecting groove 2104 is opened inside the groove 21. The connecting block 2103 is slidably connected to the connecting groove 2104. Inside; when the moving mold 102 and the fixed mold 101 are closed, the moving frame 22 is completely inserted into the interior of the groove 21 under the pressure of the moving mold 102, so as to avoid the moving frame 22 affecting the mold closing operation of the moving mold 102 and the fixed mold 101. After the moving mold 102 and the fixed mold 101 are separated, the position of the first spring 2101 is stabilized by the first positioning rod 2102, so that the moving frame 22 is reset by the first spring 2101. The moving frame 22 is prevented from moving too much by the connecting block 2103 and the connecting groove 2104, so as to ensure normal material feeding operation.

[0039] The specific implementation of this embodiment is as follows: The blank is placed on the conveyor belt 2203. When the moving mold 102 moves upward, the transmission assembly 23 drives the rotating shaft 2201 to rotate. The rotating shaft 2201 drives the guide roller 2202 to rotate, and the guide roller 2202 drives the conveyor belt 2203 to move, thus moving the blank to the surface of the fixed mold 101. Then, the moving mold 102 and the fixed mold 101 close. When the moving mold 102 moves downward, the transmission assembly 23 no longer drives the rotating shaft 2201. Simultaneously, the alignment assembly 24 contacts the blank to move it to the center position on the surface of the fixed mold 101. The mold closing process is then completed, completing the forming of the valve tappet. Subsequently, the moving mold 102 separates from the fixed mold 101, and when the moving mold 102 moves upward, the next... During the blank loading process, when the moving mold 102 and the fixed mold 101 close again, the straightening component 24 straightens the next blank, and the next blank pushes the formed valve tappet towards the ramp 25 so that the formed valve tappet is discharged from the ramp 25 to complete the unloading process. When the moving mold 102 and the fixed mold 101 close, the pressure of the moving mold 102 causes the moving frame 22 to fully enter the interior of the groove 21 to avoid the moving frame 22 affecting the mold closing process of the moving mold 102 and the fixed mold 101. After the moving mold 102 and the fixed mold 101 separate, the position of the first spring 2101 is stabilized by the first positioning rod 2102 so that the moving frame 22 is reset by the first spring 2101. The connecting block 2103 and the connecting groove 2104 prevent the moving frame 22 from moving too much to ensure normal loading.

[0040] Example 2: Please refer to Figures 1-8The present invention provides a technical solution: an alloy chilled cast iron valve tappet machine, which makes corresponding improvements to the technical problems mentioned in the background art.

[0041] As a further definition of the feeding mechanism 2 of the present invention, the transmission assembly 23 includes a vertical rod 2301, which is slidably connected to the bottom of the moving mold 102. A toothed plate 2302 is fixedly installed on one side of the vertical rod 2301. One end of a rotating shaft 2201 passes through the moving frame 22, and a gear 2303 is fixedly sleeved on one end of the rotating shaft 2201. The gear 2303 cooperates with the toothed plate 2302. A guide groove 2304 is provided on the inner wall of the groove 21. A guide rod 2305 is fixedly connected to the other side of the vertical rod 2301, and one end of the guide rod 2305 is slidably connected inside the guide groove 2304. When the moving mold 102 moves upward, the guide groove 2304 and the guide rod 2305 guide the toothed plate 2302 to be flush with the gear 2303. As the moving mold 102 moves, the moving mold 102 drives the toothed plate 2302 to move through the vertical rod 2301, so that the toothed plate 2302 contacts the gear 2303, thereby causing the gear 2303 to rotate through the toothed plate 2302, so that the gear 2303 drives the rotating shaft 2201 to rotate, the rotating shaft 2201 drives the guide roller 2202 to rotate, and the guide roller 2202 drives the conveyor belt 2203 to move, so that the blank is conveyed to the surface of the fixed mold 101 through the conveyor belt 2203.

[0042] The bottom of the moving mold 102 is provided with a first slide groove 2306. A first slider 2307 is slidably connected inside the first slide groove 2306. A connecting rod 2308 is fixedly connected to the bottom of the first slider 2307. One end of the connecting rod 2308 passes through the first slide groove 2306 and is slidably connected to the inner cavity of the first slide groove 2306. A bolt 2309 is rotatably connected to one side of the connecting rod 2308. One end of the bolt 2309 passes through the connecting rod 2308 and is threadedly connected to the vertical rod 2301. The first slider 2307 is slidably connected inside the first slide groove 2306, and the connecting rod 2308 is connected to the vertical rod 2301 by the bolt 2309, so that the vertical rod 2301 can be laterally displaced, thereby facilitating the vertical rod 2301 to follow the displacement of the guide rod 2305.

[0043] A support rod 2310 is fixedly connected to the bottom of the connecting rod 2308, and a support groove 2311 is provided at the top of the vertical rod 2301. One end of the support rod 2310 passes through the support groove 2311 and is slidably connected to the inner cavity of the support groove 2311. The support rod 2310 and the support groove 2311 can effectively stabilize the position of the vertical rod 2301 and prevent the vertical rod 2301 from tilting or shifting, which would affect normal use.

[0044] The specific implementation of this embodiment is as follows: When the moving mold 102 moves upward, it is guided by the guide groove 2304 and the guide rod 2305, and slides inside the first slide groove 2306 by the first slider 2307, so that the vertical rod 2301 and the connecting rod 2308 slide at the bottom of the moving mold 102. The position of the vertical rod 2301 is stabilized by the support rod 2310 and the support groove 2311 to prevent the vertical rod 2301 from tilting or shifting, so that the toothed plate 2302 is flush with the gear 2303. As the moving mold 102 moves, the moving mold 102 drives the toothed plate 2302 to move through the vertical rod 2301, so that the toothed plate 2302 is flush with the gear 2303. When gear 2303 contacts, it rotates through gear plate 2302, causing gear 2303 to drive shaft 2201 to rotate. Shaft 2201 drives guide roller 2202 to rotate, and guide roller 2202 drives conveyor belt 2203 to move, so that the blank is conveyed to the surface of fixed mold 101 through conveyor belt 2203. When moving mold 102 moves downward, under the guidance of guide groove 2304 and guide rod 2305, vertical rod 2301 is displaced laterally, so that gear plate 2302 moves to one side and separates from gear 2303, thereby avoiding contact between gear plate 2302 and gear 2303 that would cause shaft 2201 to rotate.

[0045] Example 3: Please refer to Figures 1-8 The present invention provides a technical solution: an alloy chilled cast iron valve tappet machine, which makes corresponding improvements to the technical problems mentioned in the background art.

[0046] As a further definition of the feeding mechanism 2 of the present invention, the alignment component 24 includes a support plate 2401, which is slidably connected to the bottom of the moving mold 102. A sleeve 2402 is fixedly connected to one side of the bottom of the support plate 2401. A second spring 2403 is fixedly connected inside the sleeve 2402. A sleeve rod 2404 is fixedly connected to one end of the second spring 2403. One end of the sleeve rod 2404 passes through the sleeve 2402 and is slidably connected to the inner cavity of the sleeve 2402. A trapezoidal block 2405 is fixedly connected to one end of the sleeve rod 2404. The trapezoidal block 2405 cooperates with the groove 21. 2. When moving downwards, the moving mold 102 drives the trapezoidal block 2405 to move simultaneously through the support plate 2401, sleeve 2402 and sleeve rod 2404, so that the trapezoidal block 2405 pushes the blank. After the trapezoidal block 2405 pushes the blank to the center position, the trapezoidal block 2405 is laterally displaced by the squeezing of the inner wall of the groove 21, so that the trapezoidal block 2405 completely enters the interior of the groove 21. At the same time, the sleeve rod 2404 slides into the interior of the sleeve 2402 to avoid the sleeve 2402, sleeve rod 2404 and trapezoidal block 2405 affecting the mold closing operation of the moving mold 102 and the fixed mold 101.

[0047] A limiting block 2406 is fixedly installed on the inner wall of the sleeve 2402, and a limiting groove 2407 is formed on the surface of the sleeve rod 2404. The inner cavity of the limiting groove 2407 is slidably connected to the surface of the limiting block 2406. By slidingly connecting the inner cavity of the limiting groove 2407 to the surface of the limiting block 2406, the position of the sleeve rod 2404 can be effectively stabilized, and the separation of the sleeve rod 2404 from the sleeve 2402 can be avoided, thus affecting the position of the trapezoidal block 2405.

[0048] The bottom of the moving mold 102 has a second slide groove 2408. Two second sliders 2409 are fixedly installed on the other side of the top of the support plate 2401. Both second sliders 2409 are slidably connected inside the second slide groove 2408. A third spring 2411 is fixedly connected inside the second slide groove 2408, with one end of the third spring 2411 fixedly connected to one side of one of the second sliders 2409. A second positioning rod 2410 is fixedly connected inside the second slide groove 2408, with one end of the second positioning rod 2410 passing through the third spring 2411 and the second slider 2409. The surface of the second positioning rod 2410 is flush with the surface of the third spring 2411. 1. The inner cavity of the second slider 2409 is slidably connected; under the pressure of the groove 21, the second slider 2409 slides inside the second slide groove 2408, so that the trapezoidal block 2405 can be laterally displaced, so that the trapezoidal block 2405 completely enters the interior of the groove 21. When the trapezoidal block 2405 separates from the groove 21, the position of the third spring 2411 is stabilized by the second positioning rod 2410, so that the third spring 2411 drives the second slider 2409 to reset, so that the second slider 2409 drives the sleeve 2402, the sleeve rod 2404 and the trapezoidal block 2405 to reset through the support plate 2401, so as to perform the next pushing operation.

[0049] The specific implementation of this embodiment is as follows: When the moving mold 102 moves downward, the moving mold 102 drives the trapezoidal block 2405 to move simultaneously through the support plate 2401, sleeve 2402, and sleeve rod 2404, so that the trapezoidal block 2405 pushes the blank. After the trapezoidal block 2405 pushes the blank to the center position, the second slider 2409 slides inside the second slide groove 2408 due to the squeezing of the inner wall of the groove 21, so that the trapezoidal block 2405 can be laterally displaced, so that the trapezoidal block 2405 completely enters the interior of the groove 21. At the same time, the sleeve rod 2404 slides into the sleeve 2402 to avoid the sleeve 2402, sleeve rod 2404, and trapezoidal block 2405 affecting each other. During the mold closing operation of the moving mold 102 and the fixed mold 101, when the moving mold 102 resets upwards, the moving mold 102 drives the trapezoidal block 2405 to reset simultaneously. The position of the third spring 2411 is stabilized by the second positioning rod 2410, so that the third spring 2411 drives the second slider 2409 to reset. This causes the second slider 2409 to drive the sleeve 2402, the sleeve rod 2404 and the trapezoidal block 2405 to reset laterally via the support plate 2401. The sleeve rod 2404 is driven to reset longitudinally via the second spring 2403. The sleeve rod 2404 is prevented from separating from the sleeve 2402 by the limiting block 2406 and the limiting groove 2407, so that the trapezoidal block 2405 is reset longitudinally for the next push operation.

[0050] A method for using an alloy chilled cast iron valve tappet includes the following steps:

[0051] S1. Raw material preparation: Cut the casting into blanks of appropriate size, and subject the blanks to spheroidizing annealing to eliminate internal stress and improve machinability;

[0052] S2, Feeding: Place multiple processed blanks sequentially onto conveyor belt 2203;

[0053] S3. Conveying: The moving mold 102 moves upward. Through the cooperation of the guide rod 2305 and the guide groove 2304, the vertical rod 2301 moves to a position flush with the gear 2303. When the moving mold 102 moves upward, the toothed plate 2302 contacts the gear 2303. The vertical rod 2301 drives the toothed plate 2302 to move, and the toothed plate 2302 drives the gear 2303 to rotate. This causes the gear 2303 to drive the guide roller 2202 to rotate, so that the conveyor belt 2203 can play the role of conveying the blank and moving the blank onto the moving mold 102.

[0054] S4. Mold Closure: The moving mold 102 moves to close with the fixed mold 101. When the moving mold 102 moves downward, under the guidance of the guide rod 2305 and the guide groove 2304, the vertical rod 2301 and the gear 2303 are misaligned to avoid contact between the toothed plate 2302 and the gear 2303. At the same time, the trapezoidal block 2405 contacts the blank and pushes the blank to the center position on the surface of the fixed mold 101. While the moving mold 102 and the fixed mold 101 are closing, under the pressure of the inner wall of the groove 21, the trapezoidal block 2405 enters the interior of the groove 21 to avoid affecting the mold closing operation of the moving mold 102 and the fixed mold 101.

[0055] S5. Discharge: After the billet is cold extruded and formed, the moving mold 102 returns to its original position. At this time, the vertical rod 2301 is once again aligned with the gear 2303. As the moving mold 102 returns to its original position, the next billet moves to the surface of the fixed mold 101. When the mold closes again, the trapezoidal block 2405 pushes the billet again and pushes the previously formed valve tappet towards the ramp 25 through the billet. The formed valve tappet is discharged from the ramp 25.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An alloy chilled cast iron valve tappet machine, comprising a frame (1), characterized in that: A fixed mold (101) is fixedly installed inside the frame (1), and a moving mold (102) is slidably connected inside the frame (1). A feeding mechanism (2) is provided on the opposite side of the fixed mold (101) and the moving mold (102). The feeding mechanism (2) includes a groove (21), which is formed on the surface of the fixed mold (101). A movable frame (22) is slidably connected inside the groove (21). A rotating shaft (2201) is rotatably connected to both sides inside the movable frame (22). A guide roller (2202) is fixedly sleeved on the surface of the rotating shaft (2201). A conveyor belt (2203) is sleeved on the surface of the two guide rollers (2202). A transmission component (23) and a straightening component (24) are provided at the bottom of the moving mold (102). The transmission component (23) is used in conjunction with the rotating shaft (2201). The straightening component (24) is used in conjunction with the groove (21). A ramp (25) is formed on the side of the fixed mold (101) opposite to the groove (21).

2. The alloy chilled cast iron valve tappet machine according to claim 1, characterized in that: The bottom of the movable frame (22) is fixedly connected to a first positioning rod (2102). A first spring (2101) is slidably sleeved on the surface of the first positioning rod (2102). One end of the first spring (2101) is fixedly connected to the bottom of the movable frame (22), and the other end of the first spring (2101) is fixedly connected to the inner wall of the groove (21). A connecting block (2103) is fixedly installed on one end of the first positioning rod (2102). A connecting groove (2104) is opened inside the groove (21), and the connecting block (2103) is slidably connected inside the connecting groove (2104).

3. The alloy chilled cast iron valve tappet machine according to claim 1, characterized in that: The transmission assembly (23) includes a vertical rod (2301) which is slidably connected to the bottom of the moving mold (102). A toothed plate (2302) is fixedly installed on one side of the vertical rod (2301). One end of one of the rotating shafts (2201) passes through the moving frame (22). A gear (2303) is fixedly sleeved on one end of one of the rotating shafts (2201). The gear (2303) cooperates with the toothed plate (2302). A guide groove (2304) is provided on the inner wall of the groove (21). A guide rod (2305) is fixedly connected to the other side of the vertical rod (2301). One end of the guide rod (2305) is slidably connected inside the guide groove (2304).

4. The alloy chilled cast iron valve tappet machine according to claim 3, characterized in that: The bottom of the moving mold (102) is provided with a first sliding groove (2306). A first slider (2307) is slidably connected inside the first sliding groove (2306). A connecting rod (2308) is fixedly connected to the bottom of the first slider (2307). One end of the connecting rod (2308) passes through the first sliding groove (2306) and is slidably connected to the inner cavity of the first sliding groove (2306). A bolt (2309) is rotatably connected to one side of the connecting rod (2308). One end of the bolt (2309) passes through the connecting rod (2308) and is threadedly connected to the vertical rod (2301).

5. The alloy chilled cast iron valve tappet machine according to claim 4, characterized in that: The bottom of the connecting rod (2308) is fixedly connected to a support rod (2310), and the top of the vertical rod (2301) is provided with a support groove (2311). One end of the support rod (2310) passes through the support groove (2311) and is slidably connected to the inner cavity of the support groove (2311).

6. The alloy chilled cast iron valve tappet machine according to claim 1, characterized in that: The alignment component (24) includes a support plate (2401), which is slidably connected to the bottom of the moving mold (102). A sleeve (2402) is fixedly connected to one side of the bottom of the support plate (2401). A second spring (2403) is fixedly connected inside the sleeve (2402). A sleeve rod (2404) is fixedly connected to one end of the second spring (2403). One end of the sleeve rod (2404) passes through the sleeve (2402) and is slidably connected to the inner cavity of the sleeve (2402). A trapezoidal block (2405) is fixedly connected to one end of the sleeve rod (2404). The trapezoidal block (2405) is used in conjunction with the groove (21).

7. The alloy chilled cast iron valve tappet machine according to claim 6, characterized in that: A limiting block (2406) is fixedly installed on the inner wall of the sleeve (2402), and a limiting groove (2407) is formed on the surface of the sleeve rod (2404). The inner cavity of the limiting groove (2407) is slidably connected to the surface of the limiting block (2406).

8. The alloy chilled cast iron valve tappet machine according to claim 6, characterized in that: The bottom of the moving mold (102) is provided with a second slide groove (2408). Two second sliders (2409) are fixedly installed on the other side of the top of the support plate (2401). The two second sliders (2409) are slidably connected inside the second slide groove (2408). A third spring (2411) is fixedly connected inside the second slide groove (2408). One end of the third spring (2411) is fixedly connected to one side of one of the second sliders (2409).

9. The alloy chilled cast iron valve tappet machine according to claim 8, characterized in that: The second positioning rod (2410) is fixedly connected inside the second slide groove (2408). One end of the second positioning rod (2410) passes through the third spring (2411) and the second slider (2409). The surface of the second positioning rod (2410) is slidably connected to the inner cavity of the third spring (2411) and the second slider (2409).

10. The method of using an alloy chilled cast iron valve tappet machine according to any one of claims 1-9, characterized in that: Includes the following steps: S1. Raw material preparation: Cut the casting into blanks of appropriate size, and subject the blanks to spheroidizing annealing to eliminate internal stress and improve machinability; S2, Feeding: Place multiple processed blanks sequentially onto the conveyor belt (2203); S3, Conveying: The moving mold (102) moves upward. Through the cooperation of the guide rod (2305) and the guide groove (2304), the vertical rod (2301) moves to a position flush with the gear (2303). When the moving mold (102) moves upward, the toothed plate (2302) contacts the gear (2303). The vertical rod (2301) drives the toothed plate (2302) to move. The toothed plate (2302) drives the gear (2303) to rotate, so that the gear (2303) drives the guide roller (2202) to rotate. Thus, the conveyor belt (2203) plays the role of conveying the blank, so that the blank moves onto the moving mold (102). S4, Mold Closure: The moving mold (102) moves to close with the fixed mold (101). When the moving mold (102) moves downward, under the guidance of the guide rod (2305) and the guide groove (2304), the vertical rod (2301) and the gear (2303) are misaligned to avoid contact between the tooth plate (2302) and the gear (2303). At the same time, the trapezoidal block (2405) contacts the blank and pushes the blank to the center position on the surface of the fixed mold (101). While the moving mold (102) and the fixed mold (101) are closing, under the pressure of the inner wall of the groove (21), the trapezoidal block (2405) enters the interior of the groove (21) to avoid affecting the mold closing operation of the moving mold (102) and the fixed mold (101). S5, Discharge: After the blank is cold extruded and formed, the moving mold (102) is reset upward. At this time, the vertical rod (2301) is once again in the same position as the gear (2303). At the same time as the moving mold (102) is reset, the next blank moves to the surface of the fixed mold (101). When the mold is closed again, the trapezoidal block (2405) pushes the blank again and pushes the previously formed valve tappet towards the ramp (25) through the blank. The formed valve tappet is discharged from the ramp (25).

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