Cast iron roll pouring mold with positioning ring
By designing a casting mold with a positioning ring for cast iron rolls, and utilizing a mold frame, a fixed mold and a moving mold mechanism, as well as a separate cooling mechanism, the problem of unstable connection between the casting and the metal strip in the production of cast iron rolls was solved, and stable mold opening and convenient demolding of the casting were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TONGLING DAMING MALLEABLE STEEL CO LTD
- Filing Date
- 2026-04-03
- Publication Date
- 2026-07-14
AI Technical Summary
In the production process of cast iron rolls, improper timing of mold opening during casting can easily cause the passive mold of the casting to be accidentally pulled out by the unbroken metal strip, resulting in unplanned lower mold offset.
The design includes a cast iron roll casting mold with a positioning ring, comprising a mold frame mechanism, a fixed mold mechanism, a moving mold mechanism, and a separate cooling mechanism. Through components such as a limit slide, a push-moving module, a compression spring, and a flexible graphite sealing ring, it ensures that the connection between the casting and the metal strip is disconnected in time when the mold is opened, and achieves accurate positioning and convenient demolding through bolt twist heads and demolding pins.
It effectively ensures the stability of the casting, ensures timely separation of the casting from the metal strip when the mold is opened, prevents unexpected ejection, and achieves accurate positioning and convenient demolding through bolt twist heads and ejector pins.
Smart Images
Figure CN122378047A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of mold technology, specifically to a cast iron roll casting mold with a positioning ring. Background Technology
[0002] Rolls are the main working parts and tools on rolling mills that cause continuous plastic deformation of metal. Rolls are mainly composed of three parts: roll body, roll neck, and shaft end. The roll body is the middle part of the roll that actually participates in rolling the metal. It has a smooth cylindrical or grooved surface. The roll neck is installed in the bearing and transmits the rolling force to the stand through the bearing seat and the pressing device. The shaft end of the transmission end is connected to the gear seat through the connecting shaft and transmits the rotational torque of the motor to the roll.
[0003] In the production of cast iron rolls, molten metal is usually poured into the mold. During pouring, the metal is fed into the mold's positioning ring. After cooling, a solidified metal strip forms in the positioning ring channel and connects with the casting. To facilitate subsequent separation, the size of the gating neck is usually designed to utilize its "necking" effect. This ensures that the metal strip in the gating neck is still in a semi-solid state when the casting is fully solidified, causing the two to break at the weakest point of bonding. However, the design of this gating neck requires precise control of the mold opening temperature and timing. If the mold opening timing is inappropriate, the passive mold of the casting may be accidentally pulled out by the unbroken metal strip during mold opening, causing unintended lower mold offset. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a cast iron roll casting mold with a positioning ring, which solves the problems mentioned in the background.
[0005] This invention provides the following technical solution: a cast iron roll casting mold with a positioning ring, comprising: a mold frame mechanism, wherein a fixed mold mechanism and a moving mold mechanism are fixedly installed inside the mold frame mechanism, the mold frame mechanism includes a moving mold frame and a fixed mold frame, the fixed mold frame being located below the moving mold frame, the fixed mold mechanism including a fixed mold core, the fixed mold core being fixedly installed inside the fixed mold frame, the moving mold mechanism including a moving mold core, the moving mold core being fixedly installed inside the moving mold frame, the mold frame mechanism also having a separate cooling mechanism inside, the moving mold mechanism further including a limiting slide groove, a probing moving module, a compression spring and a flexible graphite sealing ring, wherein the limiting slide groove is embedded in the surface of the moving mold core. The inferring module is slidably connected inside the limiting slide groove. The compression spring is movably installed inside the inferring module. The flexible graphite sealing ring is disposed between the inferring module and the limiting slide groove. The split cooling mechanism includes a fixed flow guide seat and a moving flow guide seat. The fixed flow guide seat is fixedly installed between the fixed mold frame and the fixed mold core. The moving flow guide seat is fixedly installed between the moving mold frame and the moving mold core. Heat exchange channels are provided inside both the fixed flow guide seat and the moving flow guide seat. When the fixed flow guide seat and the moving flow guide seat are closed, the heat exchange channels inside the fixed flow guide seat and the moving flow guide seat form a spiral heat exchange channel. A demolding guide pin hole is provided through the fixed mold frame, the fixed mold core and the fixed flow guide seat.
[0006] Preferably, the mold frame mechanism further includes a first mold mounting groove, a sliding pad cylinder, and a first connecting frame. The first mold mounting groove is formed inside the moving mold frame, the sliding pad cylinder is fixedly inserted into the moving mold frame, and the first connecting frame is fixedly connected to the surface of the moving mold frame.
[0007] Preferably, the mold frame mechanism further includes a second mold mounting groove, a connecting cylinder, a second connecting frame, and a guide column. The second mold mounting groove is opened inside the fixed mold frame. The connecting cylinder is fixedly inserted into the inside of the fixed mold frame. The second connecting frame is fixedly connected to the surface of the fixed mold frame. The guide column is fixedly inserted into the inside of the connecting cylinder, and the surface of the guide column is slidably connected to the surface of the sliding pad cylinder.
[0008] Preferably, the mold frame mechanism further includes connecting bolts, external threads, bolt twist heads, anti-slip textures, and bolt sliding surfaces. The connecting bolts are threadedly connected to the interior of the fixed mold core and the interior of the moving mold core via external threads. The fixed mold core is fixedly connected to the interior of the second mold mounting groove via connecting bolts, and the moving mold core is fixedly connected to the interior of the first mold mounting groove via connecting bolts. The bolt sliding surfaces are disposed on the surface of the connecting bolts. The external threads are formed in the middle of the bolt sliding surfaces. The bolt twist heads are integrally disposed at one end of the connecting bolts. The anti-slip textures are formed on the surface of the bolt twist heads, and a hexagonal groove is formed on one side of the bolt twist heads.
[0009] Preferably, the mold frame mechanism further includes a limiting slide, a lifting plate, a buffer pad, a reset spring, and ejector pins. The limiting slide is fixedly connected to the bottom of the fixed mold frame. The lifting plate is slidably connected inside the limiting slide. The buffer pad is fixedly connected to the surface of the lifting plate. The reset spring is fixedly connected to one side of the buffer pad, and the surface of the reset spring is slidably connected to the lower surface of the fixed mold frame. There are multiple ejector pins, and all of the ejector pins are fixedly inserted into one side of the lifting plate, and the surface of the ejector pin is slidably connected to the surface of the ejector pin guide hole.
[0010] Preferably, the fixed mold mechanism further includes a first cavity, a first gate neck groove, a seepage interception ring groove, a seepage interception guide groove, and a filler strip. The first cavity is formed on the surface of the fixed mold core. The first gate neck groove, the seepage interception ring groove, and the seepage interception guide groove are all embedded in the surface of the fixed mold core. The first gate neck groove is connected to the first cavity, and the seepage interception ring groove is connected to the seepage interception guide groove. The filler strip is installed between the seepage interception ring groove and the seepage interception guide groove.
[0011] Preferably, the moving mold mechanism further includes a second cavity, a feeding positioning ring, a second gate neck groove, and a vent. The second cavity is formed on the surface of the moving mold core. The feeding positioning ring is fixedly inserted into the interior of the moving mold core. The second gate neck groove is embedded in the surface of the moving mold core and corresponds to the first gate neck groove. The second gate neck groove and the first gate neck groove are connected to the feeding positioning ring. The vent is formed through the space between the second cavity and the upper surface of the moving mold core.
[0012] Preferably, the moving mold mechanism further includes an installation groove and a storage groove. The installation groove is formed around the surface of the moving module. The flexible graphite sealing ring is fixedly connected to the inner wall of the installation groove, and the surface of the flexible graphite sealing ring is slidably connected to the inner wall of the limiting slide groove. The storage groove is embedded in the surface of the moving module, and the compression spring is located inside the moving module.
[0013] Preferably, the separate cooling mechanism further includes a first water-absorbing liner, a positioning boss, and an external connector. The first water-absorbing liner is fixedly connected to the inner wall of the heat exchange channel inside the fixed flow guide seat. The positioning boss is integrally disposed on the surface of the fixed flow guide seat. The external connector is fixedly installed on the surface of the fixed flow guide seat and is connected to both ends of the spiral heat exchange channel.
[0014] Preferably, the separate cooling mechanism further includes a second water-absorbing liner, a support guide ring, and a sealing gasket. The second water-absorbing liner is fixedly connected to the inner wall of the heat exchange channel inside the moving guide seat, and a positioning groove is provided on one side of the moving guide seat. The support guide ring is fixedly connected to the inner side wall of the positioning groove, and the sealing gasket is fixedly connected to the inner top wall of the positioning groove.
[0015] Compared with the prior art, the present invention has the following beneficial effects: This cast iron roll casting mold with positioning ring, through its mold frame mechanism, fixed mold mechanism, moving mold mechanism and separate cooling mechanism, can cut the metal strip by utilizing the misalignment inside the moving mold mechanism when the mold is opened, thereby ensuring that the connection between the casting and the metal strip is disconnected in time when the mold is not opened at the right time, thus ensuring the stability of the casting.
[0016] This cast iron roll casting mold with positioning ring, through the setting of a moving mold frame, a fixed mold frame, a first mold mounting groove, a sliding pad cylinder, a first connecting frame, a second mold mounting groove, a connecting cylinder, a second connecting frame, a guide column, a connecting bolt, an external thread, a bolt twist head, anti-slip texture, a bolt sliding surface, a limiting slide, a lifting connecting plate, a buffer pad, a reset spring, and a demolding ejector pin, can fix the fixed mold core and the moving mold core with the bolt twist head during use, and ensure accurate positioning of the fixed mold core and the moving mold core during insertion through the bolt sliding surface, compensating for the offset when the external thread is connected, and at the same time, the demolding ejector pin facilitates the demolding of the casting.
[0017] This cast iron roll casting mold with positioning ring, through the setting of fixed mold core, first cavity, first gate neck groove, seepage interception ring groove, seepage interception guide groove and filling pad, can intercept the overflowing molten metal during use by using seepage interception ring groove and seepage interception guide groove to prevent it from overflowing, and can quickly bring out the metal filled into the interior by tearing open the filling pad after cooling.
[0018] This cast iron roll casting mold with a positioning ring, through the setting of a moving mold core, a limiting slide, a probing moving module, a compression spring, a flexible graphite sealing ring, a second cavity, a feeding positioning ring, a second gate neck groove, a vent, an installation groove, and a receiving groove, can ensure the shape of the casting when the mold is closed by the probing moving module, and ensure the connection between the casting and the metal strip when the mold is opened by probing the connection between the casting and the metal strip, and use the flexible graphite sealing ring to ensure the sealing effect.
[0019] This cast iron roll casting mold with a positioning ring, through the setting of a fixed flow guide seat, a moving flow guide seat, a first water suction liner, a positioning boss, an external connector, a second water suction liner, a support guide ring, and a sealing gasket, can guide the cooling water during use by using the fixed flow guide seat and the moving flow guide seat to ensure rapid cooling of the casting. It can also absorb residual water stains through the first and second water suction liners when the mold is opened, preventing water dripping. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the present invention; Figure 3 This is a bottom view of the exploded structure of the present invention; Figure 4This is a cross-sectional view of the present invention; Figure 5 This is a schematic diagram of the connection structure between the fixed flow guide seat and the fixed mold frame of the present invention; Figure 6 This is a schematic diagram of the connection structure between the moving guide seat and the moving mold frame of the present invention; Figure 7 This is an exploded view of the fixed mold mechanism location of the present invention; Figure 8 This is an exploded structural diagram of the moving mold mechanism of the present invention; Figure 9 This is a schematic diagram of the exploded structure at the location of the inferred moving module in this invention; Figure 10 This is an exploded view of the ejector pin location of the present invention; Figure 11 This is a schematic diagram of the structure of the detachable cooling mechanism of the present invention when the mold is closed.
[0021] In the picture: 101. Moving mold frame; 102. Fixed mold frame; 103. First mold mounting slot; 104. Sliding pad cylinder; 105. First connecting frame; 106. Second mold mounting slot; 107. Connecting cylinder; 108. Second connecting frame; 109. Guide column; 110. Connecting bolt; 111. External thread; 112. Bolt twist head; 113. Anti-slip texture; 114. Bolt sliding surface; 115. Limiting slide; 116. Lifting connecting plate; 117. Buffer pad; 118. Return spring; 119. Ejector pin; 201. Fixed mold core; 202. First cavity; 203. First gate neck groove; 204. 205. Liquid interception ring groove; 206. Liquid seepage interception guide groove; 307. Filling pad strip; 308. Moving mold core; 309. Limiting slide groove; 3000. Inferring moving module; 3001. Compression spring; 301. Flexible graphite sealing ring; 302. Second cavity; 303. Feeding positioning ring; 304. Second gate neck groove; 305. Vent; 316. Mounting groove; 317. Storage groove; 408. Fixed guide seat; 409. Moving guide seat; 400. First water absorption liner; 400. Positioning boss; 401. External connector; 402. Second water absorption liner; 403. Support guide ring; 404. Sealing gasket. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1-11A cast iron roll casting mold with a positioning ring includes: a mold frame mechanism, in which a fixed mold mechanism and a moving mold mechanism are fixedly installed respectively; the mold frame mechanism includes a moving mold frame 101 and a fixed mold frame 102, with the fixed mold frame 102 located below the moving mold frame 101; the fixed mold mechanism includes a fixed mold core 201, which is fixedly installed inside the fixed mold frame 102; the moving mold mechanism includes a moving mold core 301, which is fixedly installed inside the moving mold frame 101; the mold frame mechanism also includes a separate cooling mechanism; and the moving mold mechanism also includes a limiting slide 302 and an infeed mechanism. The moving module 303, the compression spring 304, and the flexible graphite sealing ring 305, along with the limiting groove 302, are embedded in the surface of the moving mold core 301. The infeeding moving module 303 is slidably connected inside the limiting groove 302. The compression spring 304 is movably installed inside the infeeding moving module 303. The flexible graphite sealing ring 305 is located between the infeeding moving module 303 and the limiting groove 302. Flexible graphite, also known as expanded graphite, is made from scaly graphite as raw material, which undergoes chemical processing to generate interlayer compounds. At high temperatures of 800-1000 degrees Celsius, the interlayers... The compound turns into a gas, causing the flake graphite to expand approximately two hundred times, becoming like cotton in terms of thermal conductivity, overcoming its brittleness. It is porous, elastic, and therefore exhibits excellent sealing properties. It does not decompose, deform, or age under high temperature, high pressure, or radiation conditions, and its chemical properties are stable. The separate cooling mechanism includes a fixed flow guide seat 401 and a moving flow guide seat 402. The fixed flow guide seat 401 is fixedly installed between the fixed mold frame 102 and the fixed mold core 201, and the moving flow guide seat 402 is fixedly installed between the moving mold frame 101 and the moving mold core 301. The interior of the fixed flow guide seat 401 and the moving flow guide seat 402... Heat exchange channels are provided inside the seat 402. When the fixed flow guide seat 401 and the moving flow guide seat 402 are closed, the heat exchange channels inside the fixed flow guide seat 401 and the moving flow guide seat 402 form a spiral heat exchange channel. A demolding guide pin hole is provided through the fixed mold frame 102, the fixed mold core 201 and the fixed flow guide seat 401. Through the mold frame mechanism, the fixed mold mechanism, the moving mold mechanism and the separate cooling mechanism, the metal strip can be cut off by the misalignment inside the moving mold mechanism when the mold is opened, so as to ensure that the connection between the casting and the metal strip is disconnected in time when the mold is not opened, thus ensuring the stability of the casting.
[0024] The mold frame mechanism also includes a first mold mounting groove 103, a sliding pad cylinder 104, and a first connecting frame 105. The first mold mounting groove 103 is opened inside the moving mold frame 101, the sliding pad cylinder 104 is fixedly inserted into the moving mold frame 101, and the first connecting frame 105 is fixedly connected to the surface of the moving mold frame 101.
[0025] The mold frame mechanism further includes a second mold mounting groove 106, a connecting cylinder 107, a second connecting frame 108, and a guide column 109. The second mold mounting groove 106 is opened inside the fixed mold frame 102. The connecting cylinder 107 is fixedly inserted into the inside of the fixed mold frame 102. The second connecting frame 108 is fixedly connected to the surface of the fixed mold frame 102. The guide column 109 is fixedly inserted into the inside of the connecting cylinder 107, and the surface of the guide column 109 is slidably connected to the surface of the sliding pad cylinder 104.
[0026] The mold frame mechanism also includes a connecting bolt 110, an external thread 111, a bolt twist head 112, anti-slip texture 113, and a bolt sliding surface 114. The connecting bolt 110 is threadedly connected to the inside of the fixed mold core 201 and the inside of the moving mold core 301 through the external thread 111. The fixed mold core 201 is fixedly connected to the inside of the second mold mounting groove 106 through the connecting bolt 110, and the moving mold core 301 is fixedly connected to the inside of the first mold mounting groove 103 through the connecting bolt 110. The bolt sliding surface 114 is provided on the surface of the connecting bolt 110. The external thread 111 is opened in the middle of the bolt sliding surface 114. The bolt twist head 112 is integrally provided on one end of the connecting bolt 110. The anti-slip texture 113 is opened on the surface of the bolt twist head 112, and a hexagonal groove is opened on one side of the bolt twist head 112.
[0027] The mold frame mechanism includes a limiting slide 115, a lifting plate 116, a buffer pad 117, a reset spring 118, and ejector pins 119. The limiting slide 115 is fixedly connected to the bottom of the fixed mold frame 102. The lifting plate 116 is slidably connected to the inside of the limiting slide 115. The buffer pad 117 is fixedly connected to the surface of the lifting plate 116. The reset spring 118 is fixedly connected to one side of the buffer pad 117, and the surface of the reset spring 118 is slidably connected to the lower surface of the fixed mold frame 102. There are multiple ejector pins 119, and all of them are fixedly inserted into one side of the lifting plate 116. The surface of the ejector pin 119 is slidably connected to the surface of the ejector guide hole. The moving mold frame 101 and the fixed mold frame 102 are connected to the mold frame 102. The mold frame 102, the first mold mounting groove 103, the sliding pad cylinder 104, the first connecting frame 105, the second mold mounting groove 106, the connecting cylinder 107, the second connecting frame 108, the guide slide column 109, the connecting bolt 110, the external thread 111, the bolt twist head 112, the anti-slip texture 113, the bolt sliding surface 114, the limiting slide 115, the lifting connecting plate 116, the buffer pad 117, the reset spring 118, and the demolding ejector pin 119 can fix the fixed mold core 201 and the moving mold core 301 with the bolt twist head 112 during use, and ensure the accurate positioning of the fixed mold core 201 and the moving mold core 301 when inserted by the bolt sliding surface 114, and compensate for the offset when the external thread 111 is threaded. At the same time, the demolding ejector pin 119 facilitates the demolding of the casting.
[0028] The fixed mold mechanism further includes a first cavity 202, a first gate neck groove 203, a seepage interception ring groove 204, a seepage interception guide groove 205, and a filler strip 206. The first cavity 202 is formed on the surface of the fixed mold core 201. The first gate neck groove 203, the seepage interception ring groove 204, and the seepage interception guide groove 205 are all embedded in the surface of the fixed mold core 201. The first gate neck groove 203 is connected to the first cavity 202, and the seepage interception ring groove 204 is connected to the seepage interception guide groove 205. The filling pad 206 is installed between the seepage interception ring groove 204 and the seepage interception guide groove 205. Through the fixed mold core 201, the first cavity 202, the first gate neck groove 203, the seepage interception ring groove 204, the seepage interception guide groove 205 and the filling pad 206, the overflowing molten metal can be intercepted by the seepage interception ring groove 204 and the seepage interception guide groove 205 during use to prevent it from overflowing. After cooling, the filling pad 206 can be torn open to quickly bring out the metal filled inside.
[0029] The moving mold mechanism also includes a second cavity 306, a loading positioning ring 307, a second gate neck groove 308, and a vent 309. The second cavity 306 is formed on the surface of the moving mold core 301. The loading positioning ring 307 is fixedly inserted into the interior of the moving mold core 301. The second gate neck groove 308 is embedded in the surface of the moving mold core 301 and corresponds to the first gate neck groove 203. The second gate neck groove 308 and the first gate neck groove 203 are connected to the loading positioning ring 307. The vent 309 is formed through the space between the second cavity 306 and the upper surface of the moving mold core 301.
[0030] The moving mold mechanism also includes an installation groove 310 and a receiving groove 311. The installation groove 310 is formed around the surface of the infeeding moving module 303. A flexible graphite sealing ring 305 is fixedly connected to the inner wall of the installation groove 310, and the surface of the flexible graphite sealing ring 305 is slidably connected to the inner wall of the limiting slide groove 302. The receiving groove 311 is embedded in the surface of the infeeding moving module 303. The compression spring 304 is located inside the infeeding moving module 303. Through the provided moving mold core 301, limiting slide groove 302, infeeding moving module 303, compression spring 304, flexible graphite sealing ring 305, second cavity 306, feeding positioning ring 307, second gate neck groove 308, vent 309, installation groove 310 and receiving groove 311, the infeeding moving module 303 can ensure the shape of the casting when the mold is closed, infeed the connection between the casting and the metal strip when the mold is opened, and use the flexible graphite sealing ring 305 to ensure the sealing effect.
[0031] The separate cooling mechanism also includes a first water suction liner 403, a positioning boss 404, and an external connector 405. The first water suction liner 403 is fixedly connected to the inner wall of the heat exchange channel inside the fixed flow guide seat 401. The positioning boss 404 is integrally set on the surface of the fixed flow guide seat 401. The external connector 405 is fixedly installed on the surface of the fixed flow guide seat 401 and is connected to both ends of the spiral heat exchange channel.
[0032] The separate cooling mechanism also includes a second water-absorbing liner 406, a support guide ring 407, and a sealing gasket 408. The second water-absorbing liner 406 is fixedly connected to the inner wall of the heat exchange channel inside the moving guide seat 402, and a positioning groove is provided on one side of the moving guide seat 402. The support guide ring 407 is fixedly connected to the inner side wall of the positioning groove, and the sealing gasket 408 is fixedly connected to the inner top wall of the positioning groove. Through the fixed guide seat 401, the moving guide seat 402, the first water-absorbing liner 403, the positioning boss 404, the external connector 405, the second water-absorbing liner 406, the support guide ring 407, and the sealing gasket 408, the fixed guide seat 401 and the moving guide seat 402 can guide the cooling water during use, ensuring rapid cooling of the casting. The first water-absorbing liner 403 and the second water-absorbing liner 406 can absorb residual water stains during mold opening, preventing dripping.
[0033] Working principle: In use, connect the external connector 405 to the external water pipe distribution valve. During pouring, push the moving mold frame 101 along the guide column 109 to close towards the fixed mold frame 102, so that the fixed mold core 201 and the moving mold core 301 are closed. At the same time, the positioning boss 404 is inserted into the support guide ring 407 and sealed by the sealing gasket 408. The spiral heat exchange channel between the fixed flow guide seat 401 and the moving flow guide seat 402 is merged into a whole. Pull out the lifting connecting plate 116, so that the demolding ejector pin 119 retracts. At the same time, the inferring module 303 is squeezed and contracted into the limiting slide groove 302. The top of the inferring module 303 is attached to the inner wall of the limiting slide groove 302, and the bottom of the inferring module 303 is flush with the moving mold core 301. Then, molten metal is injected through the feeding positioning ring 307. The molten metal enters the space between the second cavity 306 and the first cavity 202 to fill the space and is vented through the vent 309. Then open the external water pipe distribution valve to introduce cold water into the spiral heat exchange channel to cool the molten metal. After cooling for a suitable time, open the mold. Before opening the mold, connect the input end of the external water pipe distribution valve to the air, so that the cold water in the spiral heat exchange channel is replaced by air. When the mold is opened, the residual water after the spiral heat exchange channel is separated will be absorbed by the capillary effect of the second water suction liner 406 to prevent it from dripping. At the same time, the "necking" effect generated when the metal between the first gate neck groove 203 and the second gate neck groove 308 is cooled will form a disconnected area to ensure smooth mold opening. If not disconnected, at the initial stage of mold opening, it is inferred that the moving core 303 will extend out of the limiting groove 302 due to the compression of the compression spring 304 to continue to compress the casting. The rising moving core 301 will cause the metal strip inside the feeding positioning ring 307 and the second gate neck groove 308 to form a misalignment between the casting fixed by the passive core 301, thereby creating a break point at the second gate neck groove 308 to ensure smooth mold opening. Then the moving core 301 continues to rise to the designated position. Then, the lifting plate 116 is pushed up, and when the lifting plate 116 rises, the casting is pushed out of the first cavity 202 by the ejector pin 119. If, during mold closing, the temperature is too high and a small amount of molten metal fails to solidify in time, it may seep out from the gap between the fixed mold core 201 and the moving mold core 301. The seeping molten metal will be intercepted and guided into the seepage interception ring groove 204 and the seepage interception guide groove 205 to prevent it from easily seeping out. After the mold is opened, the metal that has seeped into the seepage interception ring groove 204 and the seepage interception guide groove 205 can be removed and cleaned by directly tearing open the filling pad strip 206.
[0034] 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. A cast iron roll casting mold with a positioning ring, comprising: A mold frame mechanism, wherein a fixed mold mechanism and a moving mold mechanism are fixedly installed inside the mold frame mechanism, the mold frame mechanism includes a moving mold frame (101) and a fixed mold frame (102), the fixed mold frame (102) is located below the moving mold frame (101), the fixed mold mechanism includes a fixed mold core (201), the fixed mold core (201) is fixedly installed inside the fixed mold frame (102), and the moving mold mechanism includes a moving mold core (301), the moving mold core (301) is fixedly installed inside the moving mold frame (101), characterized in that a separate cooling mechanism is also provided inside the mold frame mechanism; The moving mold mechanism further includes a limiting slide groove (302), an infeeding moving module (303), a compression spring (304), and a flexible graphite sealing ring (305). The limiting slide groove (302) is embedded in the surface of the moving mold core (301). The infeeding moving module (303) is slidably connected inside the limiting slide groove (302). The compression spring (304) is movably installed inside the infeeding moving module (303). The flexible graphite sealing ring (305) is disposed between the infeeding moving module (303) and the limiting slide groove (302). The separate cooling mechanism includes a fixed flow guide seat (401) and a moving flow guide seat (402). 402), the fixed flow guide seat (401) is fixedly installed between the fixed mold frame (102) and the fixed mold core (201), and the moving flow guide seat (402) is fixedly installed between the moving mold frame (101) and the moving mold core (301). Both the fixed flow guide seat (401) and the moving flow guide seat (402) have heat exchange channels. When the fixed flow guide seat (401) and the moving flow guide seat (402) are closed, the heat exchange channels inside the fixed flow guide seat (401) and the moving flow guide seat (402) form a spiral heat exchange channel. The fixed mold frame (102), the fixed mold core (201) and the fixed flow guide seat (401) are connected by a demolding guide pin hole.
2. The cast iron roll casting mold with positioning ring according to claim 1, characterized in that, The mold frame mechanism further includes a first mold mounting groove (103), a sliding pad cylinder (104), and a first connecting frame (105). The first mold mounting groove (103) is opened inside the moving mold frame (101), the sliding pad cylinder (104) is fixedly inserted into the moving mold frame (101), and the first connecting frame (105) is fixedly connected to the surface of the moving mold frame (101).
3. The cast iron roll casting mold with positioning ring according to claim 2, characterized in that, The mold frame mechanism further includes a second mold mounting groove (106), a connecting cylinder (107), a second connecting frame (108), and a guide column (109). The second mold mounting groove (106) is opened inside the fixed mold frame (102). The connecting cylinder (107) is fixedly inserted into the inside of the fixed mold frame (102). The second connecting frame (108) is fixedly connected to the surface of the fixed mold frame (102). The guide column (109) is fixedly inserted into the inside of the connecting cylinder (107), and the surface of the guide column (109) is slidably connected to the surface of the sliding pad cylinder (104).
4. The cast iron roll casting mold with positioning ring according to claim 3, characterized in that, The mold frame mechanism also includes a connecting bolt (110), an external thread (111), a bolt twist head (112), anti-slip texture (113), and a bolt sliding surface (114). The connecting bolt (110) is threadedly connected to the inside of the fixed mold core (201) and the inside of the moving mold core (301) through the external thread (111). The fixed mold core (201) is fixedly connected to the inside of the second mold mounting groove (106) through the connecting bolt (110), and the moving mold core (301) is fixedly connected to the inside of the first mold mounting groove (103) through the connecting bolt (110). The bolt sliding surface (114) is provided on the surface of the connecting bolt (110). The external thread (111) is opened in the middle of the bolt sliding surface (114). The bolt twist head (112) is integrally provided at one end of the connecting bolt (110). The anti-slip texture (113) is opened on the surface of the bolt twist head (112), and a hexagonal groove is opened on one side of the bolt twist head (112).
5. The cast iron roll casting mold with positioning ring according to claim 4, characterized in that, The mold frame mechanism also includes a limiting slide (115), a lifting plate (116), a buffer pad (117), a reset spring (118), and a demolding ejector pin (119). The limiting slide (115) is fixedly connected to the bottom of the fixed mold frame (102). The lifting plate (116) is slidably connected to the inside of the limiting slide (115). The buffer pad (117) is fixedly connected to the surface of the lifting plate (116). The reset spring (118) is fixedly connected to one side of the buffer pad (117), and the surface of the reset spring (118) is slidably connected to the lower surface of the fixed mold frame (102). There are multiple demolding ejector pins (119), and all of the multiple demolding ejector pins (119) are fixedly inserted into one side of the lifting plate (116), and the surface of the demolding ejector pin (119) is slidably connected to the surface of the demolding guide pin hole.
6. The cast iron roll casting mold with positioning ring according to claim 1, characterized in that, The fixed mold mechanism further includes a first cavity (202), a first gate neck groove (203), a seepage interception ring groove (204), a seepage interception guide groove (205), and a filling pad (206). The first cavity (202) is formed on the surface of the fixed mold core (201). The first gate neck groove (203), the seepage interception ring groove (204), and the seepage interception guide groove (205) are all embedded in the surface of the fixed mold core (201). The first gate neck groove (203) is connected to the first cavity (202), and the seepage interception ring groove (204) is connected to the seepage interception guide groove (205). The filling pad (206) is installed between the seepage interception ring groove (204) and the seepage interception guide groove (205).
7. The cast iron roll casting mold with positioning ring according to claim 1, characterized in that, The moving mold mechanism further includes a second cavity (306), a loading positioning ring (307), a second gate neck groove (308), and a vent (309). The second cavity (306) is formed on the surface of the moving mold core (301). The loading positioning ring (307) is fixedly inserted into the interior of the moving mold core (301). The second gate neck groove (308) is embedded in the surface of the moving mold core (301), and the second gate neck groove (308) corresponds to the first gate neck groove (203). The second gate neck groove (308) and the first gate neck groove (203) are connected to the loading positioning ring (307). The vent (309) is formed through the space between the second cavity (306) and the upper surface of the moving mold core (301).
8. The cast iron roll casting mold with positioning ring according to claim 7, characterized in that, The moving module mechanism also includes an installation groove (310) and a storage groove (311). The installation groove (310) is opened around the surface of the induction moving module (303). The flexible graphite sealing ring (305) is fixedly connected to the inner wall of the installation groove (310), and the surface of the flexible graphite sealing ring (305) is slidably connected to the inner wall of the limiting slide groove (302). The storage groove (311) is embedded in the surface of the induction moving module (303), and the compression spring (304) is located inside the induction moving module (303).
9. The cast iron roll casting mold with positioning ring according to claim 1, characterized in that, The split cooling mechanism further includes a first water suction liner (403), a positioning boss (404), and an external connector (405). The first water suction liner (403) is fixedly connected to the inner wall of the heat exchange channel inside the fixed flow guide seat (401). The positioning boss (404) is integrally set on the surface of the fixed flow guide seat (401). The external connector (405) is fixedly installed on the surface of the fixed flow guide seat (401) and is connected to both ends of the spiral heat exchange channel.
10. The cast iron roll casting mold with positioning ring according to claim 9, characterized in that, The separate cooling mechanism further includes a second water suction liner (406), a support guide ring (407), and a sealing gasket (408). The second water suction liner (406) is fixedly connected to the inner wall of the heat exchange channel inside the moving guide seat (402), and a positioning groove is provided on one side of the moving guide seat (402). The support guide ring (407) is fixedly connected to the inner side wall of the positioning groove, and the sealing gasket (408) is fixedly connected to the inner top wall of the positioning groove.