Casting jacket flattening device for casting production line
By designing a box flattening device on the casting production line and using cylinder drive press rod to flatten the box, the gap problem caused by the tilt of the box is solved and the molding quality of the casting is improved.
Patent Information
- Application Number
- CN202422462000.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-10-12
AI Technical Summary
On the casting production line, the box is inclined due to unbalanced friction, resulting in gaps with the sand embryo, affecting the quality of the casting.
A box flattening device for casting production lines is designed, including a frame, a cylinder and a flattening mechanism. The crooked box flattening through the cylinder drive press rod, and the adjustment mechanism is used to adapt to sand embryos of different heights.
Effectively flatten the case to ensure that the case to the sand embryo is closely fitted and improve the molding quality of the castings.
Smart Images
Figure CN223198022U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand casting, in particular to a casing flattening device for a casting production line. Background Art
[0002] Sand casting is a casting method that produces castings in sand molds. Steel, iron, and most non-ferrous alloy castings can be produced using this method. Sand casting is suitable for individual production, batch production, and large-scale production, and has long been a fundamental process in foundry production. In practice, a template is placed between a cofferdam and a drag flask, and the sand is then placed into the flask. Next, the sand is compacted by the pressure plates of the molding machine and removed from the flask, forming the sand blank. Molten metal is then poured into the sand blank cavity. Once the metal solidifies, the outer layer of the sand blank is removed, creating a finished casting. Once the sand blank is complete, a casing and a weight are placed over it to protect it. Finally, the sand blank, with casing and weight, is transported along the production line to the casting area. After cooling, the finished sand blank is separated from the casing and weight, enabling rapid and efficient recycling.
[0003] In the sand casting process, a sleeve is placed over the sand blank to enclose the side walls of the blank, preventing the molten metal from expanding and damaging the sand mold after being injected into the blank's cavity, thereby ensuring part quality. In current casting production lines, a robot transfers the sleeve to the top of the sand blank and then releases it, allowing it to slide down the sand blank to the center under its own weight. However, due to the uneven friction between the inner wall of the sleeve and the outer surface of the sand blank, the sleeve often tilts, resulting in localized gaps between the sleeve and the sand blank, compromising casting quality. To address this issue, a sleeve flattening device for casting production lines is proposed. Summary of the Invention
[0004] The purpose of the utility model is to solve the problem in the prior art that the sleeve box slides downward to the middle position of the sand embryo by its own weight on the casting production line, and the friction between the sleeve box and the sand embryo is unbalanced, which causes the sleeve box to often tilt, and local gaps to appear between the sleeve box and the sand embryo, and the quality of the casting cannot be guaranteed. A sleeve box flattening device for a casting production line is proposed.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A casing flattening device for a casting production line includes a frame and a cylinder installed above the frame, a flattening mechanism is connected below the cylinder, and the flattening mechanism includes an upper pressure plate and a lower pressure plate arranged below the upper pressure plate. An adjustment mechanism for adjusting the distance between the upper pressure plate and the lower pressure plate is arranged between the upper pressure plate and the lower pressure plate; pressure rods are arranged at the four corners of the bottom of the lower pressure plate.
[0007] In some embodiments, a top plate is provided above the frame, and the push rod of the cylinder passes through the top plate and is connected to the upper pressure plate.
[0008] In some embodiments, sliding shafts are provided on both sides above the upper pressure plate, sliding sleeves are provided on both sides above the top plate, and the sliding shafts pass through the top plate and the sleeves in sequence.
[0009] In some embodiments, the adjustment mechanism includes brackets respectively arranged on one side of the upper pressure plate and the lower pressure plate, wherein one of the brackets is provided with two vertical plates, a worm is rotatably arranged between the two vertical plates, a worm wheel is provided on one side of the worm, the worm wheel is engaged with the worm, and a rotating shaft is provided at the center of the worm wheel; a sleeve is provided on the other bracket, and the part of the rotating shaft passing through the bracket is connected to the sleeve by a thread.
[0010] In some embodiments, a handle is connected to the portion of the worm that passes through the bracket.
[0011] In some embodiments, two telescopic parts are commonly connected between the upper pressure plate and the lower pressure plate. The telescopic parts include an inner tube and an outer tube. The outer tube is slidably mounted on the outside of the inner tube. The inner tube is connected to the lower pressure plate, and the outer tube is connected to the upper pressure plate. A bolt is provided on the outer tube for locking the inner tube.
[0012] In some embodiments, a production line for conveying sand embryos is provided at the lower end of the frame, and a casing is provided on the sand embryos.
[0013] In some embodiments, positioning parts are provided at the four corners of the top of the sleeve, and the positioning parts are provided in a one-to-one correspondence with the pressure rods.
[0014] Compared with the prior art, the utility model provides a casing flattening device for a casting production line, which has the following beneficial effects.
[0015] 1. The utility model drives the four pressure rods in the flattening mechanism to move downward through the cylinder. The four pressure rods apply pressure to the sleeve to flatten the skewed sleeve, so that the sleeve and the sand blank fit better and the quality of the casting is guaranteed.
[0016] 2. The utility model is provided with an adjustment mechanism between the upper pressing plate and the lower pressing plate for adjusting the distance between the upper pressing plate and the lower pressing plate. The purpose is to adjust the initial position height of the lower pressing plate so as to be suitable for sand embryos of different heights.
[0017] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model can flatten the tilted casing and adjust the position of the lower pressing plate, which is suitable for sand embryos of different heights.
[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on an examination of the following; or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is the main view of the present utility model.
[0020] Figure 2 It is a top view of the present utility model.
[0021] Figure 3 It is a schematic diagram of the flattening mechanism in the utility model.
[0022] Figure 4 It is a schematic diagram of the upper pressing plate and the lower pressing plate in the utility model.
[0023] Figure 5 It is a schematic diagram of the sleeve box being sleeved on the sand embryo in the utility model.
[0024] Figure 6 This utility model Figure 5 sectional view of .
[0025] The reference numerals in the accompanying drawings are:
[0026] 1. Frame; 2. Cylinder; 3. Upper pressure plate; 4. Lower pressure plate; 5. Pressure rod; 6. Top plate; 7. Sliding shaft; 8. Bushing; 9. Bracket; 10. Vertical plate; 11. Worm; 12. Worm gear; 13. Rotating shaft; 14. Sleeve; 15. Handle; 16. Inner tube; 17. Outer tube; 18. Bolt; 19. Sand embryo; 20. Production line; 21. Casing; 22. Positioning unit. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0028] Reference Figures 1-6A casing flattening device for a casting production line includes a frame 1 and a cylinder 2 mounted above the frame 1. A flattening mechanism is connected below the cylinder 2. The flattening mechanism includes an upper platen 3 and a lower platen 4 disposed below the upper platen 3. An adjustment mechanism for adjusting the distance between the upper platen 3 and the lower platen 4 is disposed between the upper platen 3 and the lower platen 4. Pressure rods 5 are disposed at the four corners of the bottom of the lower platen 4. The cylinder 2 drives the four pressure rods 5 in the flattening mechanism downward, applying pressure to the casing 21 to flatten any skewed casing 21, thereby improving the fit between the casing 21 and the sand blank 19 and ensuring the quality of the casting.
[0029] For details, please refer again to Figure 3 A top plate 6 is provided above the frame 1, and the push rod of the cylinder 2 passes through the top plate 6 and is connected to the upper plate 3. In order to ensure that the upper plate 3 can be raised and lowered evenly and smoothly, sliding shafts 7 are provided on both sides above the upper plate 3, and sliding sleeves are provided on both sides above the top plate 6. The sliding shafts 7 pass through the top plate 6 and the sleeves 8 in sequence.
[0030] The applicant would like to emphasize that, in actual applications, since the heights of various castings are not the same, an adjustment mechanism is provided between the upper pressing plate 3 and the lower pressing plate 4 for adjusting the distance between the upper pressing plate 3 and the lower pressing plate 4. The purpose is to adjust the initial position height of the lower pressing plate 4 so as to be suitable for sand blanks 19 of different heights.
[0031] Specifically, the adjustment mechanism includes a bracket 9 respectively arranged on one side of the upper pressing plate 3 and the lower pressing plate 4, wherein one of the brackets 9 is provided with two vertical plates 10, a worm 11 is rotatably arranged between the two vertical plates 10, a worm wheel 12 is provided on one side of the worm 11, the worm wheel 12 is meshed with the worm 11, and a rotating shaft 13 is provided at the center of the worm wheel 12; a sleeve 14 is provided on the other bracket 9, and the portion of the rotating shaft 13 passing through the bracket 9 is connected to the sleeve 14 by a thread. Furthermore, a handle 15 is connected to the portion of the worm 11 passing through the bracket 9. By turning the handle 15, the worm 11 is driven to rotate, the worm 11 is meshed with the worm wheel 12, and then the rotating shaft 13 is driven to rotate. Due to the threaded action between the rotating shaft 13 and the sleeve 14, the sleeve 14 is raised and lowered under the guidance of the telescopic member to adjust the initial position height of the lower pressing plate 4.
[0032] Please refer again Figure 4 Two telescopic members are connected between the upper and lower pressing plates 3 and 4. The telescopic members include an inner tube 16 and an outer tube 17. The outer tube 17 is slidably mounted on the outer tube 16. The inner tube 16 is connected to the lower pressing plate 4, and the outer tube 17 is connected to the upper pressing plate 3. Bolts 18 are provided on the outer tube 17 to lock the inner tube 16. After loosening the bolts 18, the height of the lower pressing plate 4 can be adjusted. After the adjustment of the lower pressing plate 4 is completed, the bolts 18 are tightened.
[0033] Please refer again Figure 2 The lower end of the frame 1 is provided with a production line 20 for conveying sand embryos 19, and the sand embryos 19 are provided with a sleeve box 21; please refer to Figure 6 The sand embryo 19 has a conical structure that is small at the top and large at the bottom, that is, the outer side of the sand embryo 19 is a slope, and the inner wall of the sleeve box 21 matches the slope. When the pressure rod 5 flattens the sleeve box, the sleeve box 21 stays in the middle position of the sand embryo 19 by utilizing the slope design, ensuring the molding quality of the casting.
[0034] It is worth mentioning that positioning parts 22 are provided at the four corners of the top of the sleeve box 21 , and the positioning parts 22 are provided in a one-to-one correspondence with the pressure rods 5 .
[0035] The working principle of this utility model is:
[0036] During use, the frame 1 is installed above the production line 20, which is used to transport sand embryos 19. At the same time, a sleeve 21 is placed on the sand embryos 19. When the sand embryos 19 run under the flattening mechanism, the production line 20 stops moving. At this time, the cylinder 2 extends, and the push rod of the cylinder 2 drives the four pressure rods 5 in the flattening mechanism to move downward. The four pressure rods 5 apply pressure to the sleeve 21 to flatten the skewed sleeve 21. Then the cylinder 2 returns to its initial position, and the production line 20 resumes operation, transporting the next sand embryo 19 with the sleeve 21 to the bottom of the flattening mechanism. The above process is repeated continuously, thereby achieving continuous flattening operation.
[0037] When the position of the lower pressure plate 4 needs to be adjusted, first loosen the bolt 18, and rotate the handle 15 to drive the worm 11 to rotate. The worm 11 engages with the worm wheel 12, and then drives the rotating shaft 13 to rotate. Due to the threaded action between the rotating shaft 13 and the sleeve 14, under the guidance of the telescopic part, the sleeve 14 is raised and lowered to achieve the adjustment of the initial position height of the lower pressure plate 4, which is suitable for sand embryos of different heights on the production line 20.
[0038] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0040] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A casing flattening device for a casting production line, comprising a frame (1) and a cylinder (2) mounted above the frame (1), characterized in that: A flattening mechanism is connected below the cylinder (2), and the flattening mechanism comprises an upper pressing plate (3) and a lower pressing plate (4) arranged below the upper pressing plate (3); an adjusting mechanism for adjusting the distance between the upper pressing plate (3) and the lower pressing plate (4) is arranged between the upper pressing plate (3) and the lower pressing plate (4); and pressure rods (5) are arranged at the four corners of the bottom of the lower pressing plate (4).
2. The casing flattening device for a casting production line according to claim 1, characterized in that: A top plate (6) is provided above the frame (1), and a push rod of the cylinder (2) passes through the top plate (6) and is connected to the upper pressing plate (3).
3. The casing flattening device for a casting production line according to claim 2, characterized in that: Sliding shafts (7) are provided on both sides above the upper pressure plate (3), sliding sleeves are provided on both sides above the top plate (6), and the sliding shafts (7) pass through the top plate (6) and the sleeves (8) in sequence.
4. The casing flattening device for a casting production line according to claim 1, characterized in that: The adjustment mechanism includes brackets (9) respectively arranged on one side of the upper pressing plate (3) and the lower pressing plate (4), wherein two vertical plates (10) are arranged on one of the brackets (9), a worm (11) is rotatably arranged between the two vertical plates (10), a worm wheel (12) is arranged on one side of the worm (11), the worm wheel (12) is meshed with the worm (11), and a rotating shaft (13) is arranged at the center of the worm wheel (12); a sleeve (14) is arranged on the other bracket (9), and a portion of the rotating shaft (13) passing through the bracket (9) is connected to the sleeve (14) by a thread.
5. The casing flattening device for a casting production line according to claim 4, characterized in that: The portion of the worm (11) that passes through the bracket (9) is connected to a handle (15).
6. The casing flattening device for a casting production line according to claim 1, characterized in that: Two telescopic parts are commonly connected between the upper pressure plate (3) and the lower pressure plate (4), and the telescopic parts include an inner tube (16) and an outer tube (17). The outer tube (17) is slidably sleeved on the outside of the inner tube (16). The inner tube (16) is connected to the lower pressure plate (4), and the outer tube (17) is connected to the upper pressure plate (3). A bolt (18) for locking the inner tube (16) is provided on the outer tube (17).
7. The casing flattening device for a casting production line according to claim 1, characterized in that: A production line (20) for conveying sand embryos (19) is provided at the lower end of the frame (1), and a casing (21) is provided on the sand embryos (19).
8. The casing flattening device for a casting production line according to claim 7, characterized in that: Positioning portions (22) are provided at the four corners of the top of the sleeve box (21), and the positioning portions (22) are provided in a one-to-one correspondence with the pressure rods (5).