Sand casting structure for improving usage amount of loam core

Abstract

The invention discloses a sand casting structure for improving the usage amount of a loam core, which comprises a modeling mold used for filling a casting and the loam core; the suspension mechanism comprises suspension assemblies installed on the outer side of the modeling mold, each suspension assembly is fixedly connected with a plurality of positioning assemblies, each positioning assembly is rotationally connected with a winding assembly and controls the winding assembly to rotate, and the winding assemblies are fixedly connected with the suspension assemblies; the hanging assembly comprises a hanging rope, the outer ring of the hanging rope is movably sleeved with a plurality of hanging rods, and each hanging rod is fixedly connected with a plurality of clamping sleeves and an anti-disengaging piece used for adjusting the position. And the filling piece is clamped with the clamping sleeve and is used for reducing the weight of the loam core. The positions of the multiple filling piece devices in the modeling mold are adjusted through the hanging assemblies, so that under the condition that the casting quality is not affected, the use of loam cores can be reduced, and the production cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of sand casting, and in particular relates to a sand casting structure for improving the usage of mud cores. Background Art

[0002] Sand casting is a casting method that produces castings in sand molds. When making the core, resin sand particles are placed in the mold to form the internal surface of the casting, and the gap between the core and the mold eventually becomes the casting.

[0003] Since most of the clay cores in the mold are solid structures, a large amount of clay cores are needed during sand casting, which is easy to cause waste in large-scale production and increase production costs. Summary of the invention

[0004] The present invention aims at solving the problems in the prior art and proposes the following technical solutions:

[0005] Sand casting structures for improved mud core usage, including:

[0006] A molding die, wherein the molding die is used to fill the casting with a clay core;

[0007] A suspension mechanism, the suspension mechanism comprising a suspension assembly installed outside the molding die, one of the suspension assemblies being fixedly connected to a plurality of positioning assemblies, each of the positioning assemblies being rotatably connected to a winding assembly and controlling its rotation, the winding assembly being fixedly connected to the suspension assembly;

[0008] The suspension assembly comprises a suspension rope, the outer ring movable sleeve of the suspension rope is provided with a plurality of suspension rods, each of the suspension rods is fixedly connected with a plurality of clamping sleeves and an anti-dropping member for adjusting the position;

[0009] A filling piece, the filling piece is clamped with the ferrule for reducing the weight of the mud core;

[0010] A turning mechanism, which is installed on the outside of the molding die and is used to control the rotation of the two suspension mechanisms;

[0011] The positioning assembly controls the winding assembly to retract and release the suspension rope, suspends the filling piece above the casting, and adjusts the spacing between multiple suspension rods through the anti-slip member, so that the filling piece is evenly placed above the casting to reduce the filling of the mud core.

[0012] As a preferred embodiment of the above technical solution, the suspension assembly includes:

[0013] The rotating shaft is rotatably mounted on the outside of the molding mold, and the outer ring fixed sleeve of the rotating shaft is provided with a gear and a support arm, and the end of the support arm away from the rotating shaft is fixedly connected with a suspension beam.

[0014] As a preferred embodiment of the above technical solution, the positioning component includes:

[0015] A sleeve, wherein the sleeve is fixedly mounted on the outer ring of the suspension beam, the sleeve is provided with a first opening and a second opening, a second pull rod is arranged in the first opening, a slide plate and a moving block are fixedly connected on one side of the second pull rod, and a first spring is fixedly connected on the other side, the slide plate is slidably connected to the sleeve, the moving block is provided with a limiting member for controlling the rotation of the winding assembly, and one end of the first spring away from the second pull rod is fixedly connected to the first opening.

[0016] As a preferred embodiment of the above technical solution, the winding assembly includes:

[0017] A winding roller is rotatably connected to the sleeve, one end of the suspension rope away from the suspension rod passes through the second opening and is fixedly connected to the winding roller, and the winding roller is used to control the winding of the suspension rope.

[0018] As a preferred embodiment of the above technical solution, the limiting member includes:

[0019] A positioning block, both sides of which are fixedly connected with guide sliders, a side of the moving block close to the winding roller is fixedly provided with a zoom groove, a side wall of the zoom groove is provided with a guide slide groove, and the guide slider is slidably connected with the guide slide groove.

[0020] As a preferred embodiment of the above technical solution, a plurality of positioning grooves are provided on the inner wall of the winding roller, a third spring is fixedly connected to one side of the positioning block, an end of the third spring away from the positioning block is fixedly connected to the zoom groove, and the positioning block and the positioning groove are plugged into each other to limit the rotation of the winding roller.

[0021] As a preferred embodiment of the above technical solution, the inner ring fixed sleeve of the suspension beam is provided with a first baffle, the inner ring movable sleeve of the first baffle is provided with a first pull rod, the first pull rod is fixedly connected with a plurality of pull plates, and one end of the first pull rod passes through the suspension beam, the suspension beam is provided with a plurality of third openings, and one end of the second pull rod passes through the third opening and contacts with the pull plate.

[0022] As a preferred embodiment of the above technical solution, a second baffle is fixedly sleeved on the outer ring of the first pull rod, a second spring is fixedly connected to one side of the second baffle, and one end of the second spring away from the second baffle is fixedly connected to the first baffle.

[0023] As a preferred embodiment of the above technical solution, the flipping mechanism includes:

[0024] The rack is slidably connected to the outer wall of the molding mold, and a threaded rod is rotatably sleeved in the threaded hole of the rack. The threaded rod is fixed to the outer wall of the molding mold through a bearing frame, and the rack is meshed with two gears for transmission.

[0025] The beneficial effects of the present invention are:

[0026] 1. The present invention adjusts the positions of multiple filling devices inside the molding die through the suspension assembly, so that the use of clay cores can be saved without affecting the quality of the casting, thereby reducing the production cost;

[0027] 2. When the present invention adjusts the positions of the two suspension components through the flipping mechanism, it can simultaneously control the winding component to pay out the suspension rope through multiple positioning components, so that the suspension component will not pull the filling parts buried in the molding mold when moving, thereby ensuring the flatness of the mud core. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The structure schematic diagram of the sand casting structure used to improve the usage of the mud core in the embodiment is shown;

[0029] Figure 2 What is shown is a schematic diagram of the structure of the suspension mechanism in the embodiment;

[0030] Figure 3 It shows Figure 2 A schematic diagram of the structure enlargement at point A;

[0031] Figure 4 It shows Figure 2 A schematic diagram of the structure at B in FIG.

[0032] Figure 5 What is shown is a schematic diagram of the structure of the winding assembly and the hanging assembly in the embodiment;

[0033] Figure 6 It shows Figure 5 Schematic diagram of the enlarged structure at position C in FIG.

[0034] Description of reference numerals:

[0035] 1. Molding mold; 2. Suspension mechanism; 21. Suspension assembly; 211. Rotating shaft; 212. Gear; 213. Support arm; 214. Suspension beam; 215. First baffle; 216. First pull rod; 217. Second baffle; 218. Second spring; 219. Pull plate; 22. Positioning assembly; 221. Sleeve; 222. Second pull rod; 223. Slide plate; 224. Moving block; 225. Third spring; 226. Positioning block; 227. Guide slider; 23. Winding assembly; 231. Winding roller; 232. Positioning groove; 24. Suspension assembly; 241. Suspension rope; 242. Suspension rod; 243. Card sleeve; 3. Filling piece; 4. Flipping mechanism; 41. Rack; 42. Threaded rod. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0037] Example

[0038] like Figure 1 and Figure 2 As shown, a sand casting structure for improving the usage of mud cores comprises a molding mold 1, a suspension mechanism 2, a filling piece 3 and a flipping mechanism 4. The molding mold 1 is used to fill castings and mud cores. The suspension mechanism 2 comprises a suspension assembly 21 installed on the outside of the molding mold 1. The suspension assembly 21 is mirror-set in two groups. One suspension assembly 21 is fixedly connected to a plurality of positioning assemblies 22. Each positioning assembly 22 is rotatably connected to a winding assembly 23 and controls its rotation. The winding assembly 23 is fixedly connected to a hanging assembly 24. The hanging assembly 24 comprises a hanging rope 241. The outer ring movable sleeve of the hanging rope 241 is provided with a plurality of hanging rods 242. Each hanging rod 242 is fixedly connected to a plurality of clamping sleeves 243 and an anti-slipping piece for adjusting the position. The anti-slipping piece is used to prevent the hanging rod 242 from sliding on the hanging rope 241. The filling piece 3 is clamped with the clamping sleeve 243 for reducing the weight of the mud core. The flipping mechanism 4 is installed on the outside of the molding mold 1 to control the rotation of the two hanging mechanisms 2.

[0039] The positioning component 22 controls the rotation of the winding component 23 to retract and release the suspension rope 241. The retraction and release of the suspension rope 241 can drive the suspension rod 242 and the clamping sleeve 243 to move in the same manner. When the filling pieces 3 clamped on the clamping sleeve 243 enter the interior of the molding mold 1, the spacing between the multiple suspension rods 242 is adjusted by the anti-slip part so that it will not interfere with the quality of the casting. The filling pieces 3 are evenly placed above the casting to reduce the filling of the mud core.

[0040] like Figure 1 and Figure 2 As shown, the suspension assembly 21 includes:

[0041] The rotating shaft 211 is rotatably installed on the outside of the molding mold 1, and the outer ring of the rotating shaft 211 is fixedly sleeved with a gear 212 and a support arm 213. The end of the support arm 213 away from the rotating shaft 211 is fixedly connected with a suspension beam 214. The support arm 213 can rotate with the rotating shaft 211 as the axis. When the molding mold 1 needs to be reversed, the two support arms 213 can be reversed to the two sides of the molding mold 1 respectively. When the molding mold 1 needs to add a mud core, the two support arms 213 are reversed to the top of the opening of the molding mold 1.

[0042] like Figure 2 and Figure 4As shown, a positioning assembly 22 includes at least one sleeve 221, which is fixedly mounted on the outer ring of the suspension beam 214. The sleeve 221 is provided with a first opening and a second opening, and a second pull rod 222 is arranged in the first opening. A slide plate 223 and a moving block 224 are fixedly connected to one side of the second pull rod 222. Two slide plates 223 are provided, which are respectively fitted with the outer wall and the inner wall of the sleeve 221, and a first spring is fixedly connected to the other side. The slide plate 223 is slidably connected to the sleeve 221 so that it cannot be separated from the sleeve 221. The moving block 224 is installed with a limit piece for controlling the rotation of the winding assembly 23. The end of the first spring away from the second pull rod 222 is fixedly connected to the first opening. Through the action of the first spring, the second pull rod 222 is always pushed close to the winding assembly 23 in the absence of any external interference.

[0043] Specifically, when the second pull rod 222 is pulled to the side away from the winding assembly 23, the limiting member can be disengaged from the winding assembly 23, so that the winding assembly 23 can be rotated to drive the suspension rope 241 to be retracted and the sleeve 243 can be placed into or taken out of the molding mold 1. When the second pull rod 222 is released, the force of the first spring will push the second pull rod 222 to move toward the side close to the winding assembly 23, thereby pushing the limiting member to jam the winding assembly 23, preventing the suspension rope 241 from moving toward the interior of the molding mold 1 due to the gravity of the suspension rod 242, the sleeve 243 and the filling piece 3, and avoiding the filling piece 3 from hitting the casting. When the position of the filling piece 3 is adjusted, the mud core can be filled.

[0044] like Figure 4 and Figure 5 As shown, the winding assembly 23 includes a winding roller 231, which is rotatably connected to the sleeve 221, and one end of the suspension rope 241 away from the suspension rod 242 passes through the second opening and is fixedly connected to the winding roller 231. The suspension rope 241 is wound around the outer ring of the winding roller 231, and the winding roller 231 is used to control the winding of the suspension rope 241.

[0045] like Figure 5 and Figure 6As shown, the limiting member includes a positioning block 226, and inclined portions are provided on both sides of the positioning block 226. Guide sliders 227 are fixedly connected to both sides of the positioning block 226. A zoom groove is fixedly provided on the side of the moving block 224 close to the winding roller 231. The height of the zoom groove is greater than the height of the positioning block 226. A guide slide groove is provided on the side wall of the zoom groove. The guide slide slider 227 is slidably connected to the guide slide groove to prevent the positioning block 226 from being separated from the zoom groove. A plurality of positioning grooves 232 are provided on the inner wall of the winding roller 231. A third spring 225 is fixedly connected to one side of the positioning block 226. One end of the third spring 225 away from the positioning block 226 is fixedly connected to the zoom groove. The positioning block 226 is pushed to move to the side away from the zoom groove by the action force of the third spring 225, and the positioning block 226 is plugged into the positioning groove 232 to limit the rotation of the winding roller 231.

[0046] Specifically, when the second pull rod 222 is pulled to drive the movable block 224 to move toward the side away from the winding roller 231, the inclined portion of the positioning block 226 will be squeezed by the positioning groove 232, thereby squeezing the positioning block 226 into the scaling groove and disengaging from the positioning groove 232. At this time, the winding roller 231 can rotate. When the second pull rod 222 drives the movable block 224 to move toward the side close to the winding roller 231, the inclined portion of the positioning block 226 will be squeezed by the winding roller 231 and move into the scaling groove. When the positioning block 226 moves to a position aligned with the positioning groove 232, the force of the third spring 225 will push the positioning block 226 into the interior of the positioning groove 232, and the winding roller 231 will be unable to rotate.

[0047] like Figure 3 and Figure 4 As shown, the inner ring fixed sleeve of the suspension beam 214 is provided with a first baffle 215, the inner ring movable sleeve of the first baffle 215 is provided with a first pull rod 216, the first pull rod 216 is fixedly connected with a plurality of pull plates 219, and one end of the first pull rod 216 passes through the suspension beam 214, the suspension beam 214 is provided with a plurality of third openings, one end of the second pull rod 222 passes through the third opening and contacts with the pull plate 219, the outer ring fixed sleeve of the first pull rod 216 is provided with a second baffle 217, one side of the second baffle 217 is fixedly connected with a second spring 218, and the end of the second spring 218 away from the second baffle 217 is fixedly connected to the first baffle 215.

[0048] Specifically, after filling the mud core, when the support arm 213 needs to be reversed to the side of the molding mold 1, before that, the first pull rod 216 needs to be pulled to move to the outside of the suspension beam 214. While moving, the first pull rod 216 will drive the pull plate 219 connected to it to move together, and the pull plate 219 will drive the second pull rod 222 to move to the side away from the winding roller 231, and further drive the positioning block 226 to disengage from the positioning groove 232. Pulling the two first pull rods 216 at the same time can unlock all the winding rollers 231. At this time, rotate the support arm 213, and the suspension rope 241 will automatically stretch to the outside of the winding roller 231, so as to avoid pulling the filling piece 3 out of the interior of the molding mold 1 and damaging the leveled mud core. After releasing the first pull rod 216, the second baffle 217 and the first pull rod 216 will be pushed back to their original position by the force of the second spring 218, and the positioning block 226 will limit the rotation of the winding roller 231 again.

[0049] like Figure 1 As shown, the flip mechanism 4 includes a rack 41, which is slidably connected to the outer wall of the molding mold 1 so that it can only move in one direction, and a threaded rod 42 is rotatably sleeved in the threaded hole of the rack 41, and the threaded rod 42 is fixed to the outer wall of the molding mold 1 through a bearing frame. The bearing frame is used to fix the position of the threaded rod 42 so that it can only rotate but not move, and the rack 41 is meshed with two gears 212 for transmission.

[0050] Specifically, when the threaded rod 42 is rotated, since the threaded rod 42 is fixed to the outer wall of the molding mold 1 through the bearing frame, and the threaded rod 42 is rotatably connected to the threaded hole of the rack 41, and the rack 41 is slidably installed on the outer wall of the molding mold 1, the rotation of the threaded rod 42 will drive the rack 41 to move linearly, and the movement of the rack 41 will drive the two support arms 213 to rotate around the rotating shaft 211 as the axis through the engagement with the two gears 212.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them.

Claims

1. A sand casting structure for improving the usage of mud core, characterized in that: include: A molding die (1), wherein the molding die (1) is used to fill the casting with a clay core; A suspension mechanism (2), the suspension mechanism (2) comprising a suspension component (21) mounted on the outside of the molding mold (1), one of the suspension components (21) being fixedly connected to a plurality of positioning components (22), each of the positioning components (22) being rotatably connected to a winding component (23) and controlling its rotation, the winding component (23) being fixedly connected to a suspension component (24); The suspension assembly (24) comprises a suspension rope (241), the outer ring movable sleeve of the suspension rope (241) is provided with a plurality of suspension rods (242), and each of the suspension rods (242) is fixedly connected with a plurality of clamping sleeves (243) and an anti-dropping part for adjusting the position; A filling piece (3), wherein the filling piece (3) is clamped with a clamping sleeve (243) to reduce the weight of the mud core; A turning mechanism (4), which is installed on the outside of the molding mold (1) and is used to control the rotation of the two suspension mechanisms (2); The positioning component (22) controls the winding component (23) to retract and release the suspension rope (241), suspends the filling member (3) above the casting, and adjusts the spacing between the plurality of suspension rods (242) through the anti-dropping member, so that the filling member (3) is evenly placed above the casting to reduce the filling of the mud core.

2. The sand casting structure for improving the usage of mud core according to claim 1, characterized in that: The suspension assembly (21) comprises: A rotating shaft (211) is rotatably mounted on the outside of the molding mold (1), and an outer ring fixed sleeve of the rotating shaft (211) is provided with a gear (212) and a support arm (213), and one end of the support arm (213) away from the rotating shaft (211) is fixedly connected to a suspension beam (214).

3. The sand casting structure for improving the usage of mud core according to claim 2, characterized in that: The positioning component (22) comprises: A sleeve (221), wherein the sleeve (221) is fixedly mounted on the outer ring of the suspension beam (214), and the sleeve (221) is provided with a first opening and a second opening, wherein a second pull rod (222) is arranged in the first opening, and a slide plate (223) and a moving block (224) are fixedly connected to one side of the second pull rod (222), and a first spring is fixedly connected to the other side, wherein the slide plate (223) is slidably connected to the sleeve (221), and the moving block (224) is provided with a limiting member for controlling the rotation of the winding assembly (23), and an end of the first spring away from the second pull rod (222) is fixedly connected to the first opening.

4. The sand casting structure for improving the usage of mud core according to claim 3, characterized in that: The winding assembly (23) comprises: A winding roller (231), wherein the winding roller (231) is rotatably connected to the sleeve (221), and one end of the suspension rope (241) away from the suspension rod (242) passes through the second opening and is fixedly connected to the winding roller (231), and the winding roller (231) is used to control the winding of the suspension rope (241).

5. The sand casting structure for improving the usage of mud core according to claim 4, characterized in that the limiter include: A positioning block (226), both sides of which are fixedly connected with guide sliders (227), a zoom groove is fixedly provided on one side of the moving block (224) close to the winding roller (231), a guide slide groove is provided on the side wall of the zoom groove, and the guide slider (227) is slidably connected to the guide slide groove.

6. The sand casting structure for improving the usage of mud core according to claim 5, characterized in that: The inner wall of the winding roller (231) is provided with a plurality of positioning grooves (232); a third spring (225) is fixedly connected to one side of the positioning block (226); an end of the third spring (225) away from the positioning block (226) is fixedly connected to the zoom groove; and the positioning block (226) and the positioning groove (232) are plugged into and matched to limit the rotation of the winding roller (231).

7. The sand casting structure for improving the usage of mud core according to claim 3, characterized in that: The inner ring of the suspension beam (214) is fixedly sleeved with a first baffle (215), the inner ring of the first baffle (215) is movablely sleeved with a first pull rod (216), the first pull rod (216) is fixedly connected with a plurality of pull plates (219), and one end of the first pull rod (216) passes through the suspension beam (214), the suspension beam (214) is provided with a plurality of third openings, and one end of the second pull rod (222) passes through the third openings and contacts with the pull plate (219).

8. The sand casting structure for improving the usage of mud core according to claim 7, characterized in that: The outer ring of the first pull rod (216) is fixedly sleeved with a second baffle (217), one side of the second baffle (217) is fixedly connected to a second spring (218), and one end of the second spring (218) away from the second baffle (217) is fixedly connected to the first baffle (215).

9. The sand casting structure for improving the usage of mud core according to claim 2, characterized in that: The turning mechanism (4) comprises: A rack (41) is slidably connected to the outer wall of the molding die (1), and a threaded rod (42) is rotatably sleeved in a threaded hole of the rack (41), the threaded rod (42) is fixed to the outer wall of the molding die (1) through a bearing frame, and the rack (41) is meshed with two gears (212) for transmission.

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