A replaceable split cylinder die

Abstract

This utility model provides a replaceable split-type hydraulic cylinder mold, relating to the field of mold technology. It includes a lower mold and an upper mold, both cylindrical in shape. A mating ring is welded to the top opening of the lower mold, and a retaining ring is welded to the bottom opening of the upper mold. The retaining ring abuts against the mating ring. Three force-bearing wedges are welded around the top of the retaining ring, and three U-shaped mounting frames are welded around the outer circumference of the mating ring. Three positioning plates are slidably mounted on the three U-shaped mounting frames, and the protruding ends of the three positioning plates are all obliquely shaped. A drive ring is rotatably mounted on the lower mold via a threaded connection, and a transmission ring is rotatably mounted on the drive ring. Three sets of connecting rods rotatably connect the transmission ring and the three positioning plates. The mold is composed of a split, detachable lower mold and an upper mold. When the lower and upper molds are separated into their separate states, the weight of the mold can be reduced by half, facilitating lifting and transfer.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a replaceable split-type hydraulic cylinder mold. Background Technology

[0002] Most hydraulic cylinder barrels are manufactured using a casting process. When casting the cylinder barrel, a hydraulic cylinder casting mold is required. To facilitate demolding, hydraulic cylinder casting molds are often designed as separate, detachable units.

[0003] Most existing molds with split designs use multiple threaded locking components to lock the two parts together. This makes it cumbersome and inconvenient to assemble and disassemble the two parts by tightening and loosening multiple threaded locking components step by step. Utility Model Content

[0004] In view of this, the present invention provides a replaceable split-type hydraulic cylinder mold to solve the problem that when assembling and disassembling the two split parts of the mold, it is necessary to tighten and loosen multiple threaded locking parts step by step, which is cumbersome and inconvenient.

[0005] The technical solution proposed by this utility model is: a replaceable split-type hydraulic cylinder mold, specifically including a lower mold and an upper mold. Both the lower mold and the upper mold are cylindrical structures. A butt ring is welded and fitted on the top opening of the lower mold, and an abutment ring is welded and fitted on the bottom opening of the upper mold.

[0006] The abutting ring abuts against the docking ring. Three force-bearing wedges are welded around the top of the abutting ring. Three U-shaped mounting frames are welded around the outer periphery of the docking ring. Three positioning plates are slidably mounted on the three U-shaped mounting frames. The protruding ends of the three positioning plates are all obliquely shaped, and their oblique surfaces abut against the oblique surfaces of the three force-bearing wedges. A drive ring is rotatably mounted on the lower mold in the form of a threaded screw. A transmission ring is rotatably mounted on the drive ring. Three sets of connecting rods are rotatably connected between the transmission ring and the three positioning plates.

[0007] Furthermore, the transmission ring is surrounded by three U-shaped connecting frames welded around its outer perimeter. Each set of connecting rods consists of two spaced and parallel connecting rods. The tail end of the connecting rod is rotatably connected to the corresponding U-shaped connecting frame, and its head end is rotatably connected to the tail end of the positioning plate.

[0008] Furthermore, the inner circumference of the transmission ring is provided with an annular track groove, and the top of the drive ring is integrally formed with a track ring, with the annular track groove and the track ring rotating in cooperation.

[0009] Furthermore, multiple inserts are welded around the outer periphery of the drive ring, and a force-adding drive shaft is inserted into each insert.

[0010] Furthermore, a core is fixedly connected to the bottom plate of the lower mold, and a hexagonal tension block and a threaded column are fixedly connected to the upper and lower ends of the core, respectively. The threaded column is fixedly connected to the center part of the bottom plate of the lower mold by threading.

[0011] Furthermore, a pressure ring is fixedly connected to the outer periphery of the top part of the core, and a circular through hole is opened in the center of the upper mold top plate, and the top part of the core is fitted through the circular through hole.

[0012] The bottom opening of the circular through hole has an enlarged annular groove, and the pressure ring is inserted into the annular groove.

[0013] Furthermore, both the pressure ring and the mating ring are fixedly connected to a high-temperature resistant sealing ring at their top ends, and the two high-temperature resistant sealing rings are respectively pressed between the mating ring and the abutment ring and between the pressure ring and the top wall of the annular groove.

[0014] The replaceable split-type hydraulic cylinder mold provided by this utility model has the following beneficial effects:

[0015] One, three sets of connecting rods, three positioning plates, and a transmission ring are connected together to form a crank-slider mechanism. Through this crank-slider mechanism, when the drive ring rotates in both directions to propel the transmission ring up and down, it can drive the three positioning plates to slide inward along the radial direction of the mold. This controls the three positioning plates to abut or separate from the three force-bearing wedges, completing the docking, locking, and unlocking operations of the lower and upper molds in one go. Compared with the existing technology that designs the lower and upper molds to be assembled and positioned by multiple threaded locking components (such as bolts and nuts), this eliminates the trouble of having to turn multiple threaded locking components in both directions step by step to lock and unlock the lower and upper molds when assembling or disassembling them. The operation is convenient and efficient.

[0016] 2. The mold is composed of a split and detachable lower mold and an upper mold. When the mold is transferred and transported, the lower mold and the upper mold are disassembled and separated, and the lower mold and the upper mold are lifted and transported separately. When the lower mold and the upper mold are separated into separate parts, the weight of the mold can be reduced by half, which facilitates the lifting and transfer.

[0017] Third, the core is installed with the lower mold in a threaded and detachable form. After it is damaged or deformed, it can be removed and replaced separately without replacing the entire lower mold, which helps to reduce mold maintenance and repair costs. In addition, the mold can be separated and detached, which allows the lower mold or upper mold to be removed and replaced separately after damage or deformation, without replacing the entire mold. This also reduces mold maintenance and repair costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0020] In the attached diagram:

[0021] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0022] Figure 2 A bottom-side view of the entire utility model is shown;

[0023] Figure 3 This invention shows a half-section internal structure diagram of the lower mold and the upper mold in this utility model;

[0024] Figure 4 A schematic diagram showing the disassembled state of the hydraulic cylinder barrel in this utility model is shown;

[0025] Figure 5 A schematic diagram showing the disassembled state of the central core and drive ring of this utility model is provided.

[0026] Figure 6 A schematic diagram showing the disassembled state of the track ring in this utility model is shown.

[0027] List of reference numerals in the attached diagram:

[0028] 1. Lower mold; 101. Base; 102. Docking ring;

[0029] 2. Upper mold; 201. Casting nozzle; 202. Abutment ring; 2021. Force-bearing wedge; 2022. Short insert rod; 203. Circular through hole; 204. Annular groove;

[0030] 3. Core; 301. Hexagonal tension block; 302. Threaded core; 303. Pressure ring;

[0031] 4. Drive ring; 401. Sleeve; 4011. Track ring; 402. Transmission ring; 4021. U-shaped connecting frame; 403. Connecting rod;

[0032] 5. Force-assisted drive shaft;

[0033] 6. U-shaped mounting frame; 601. Positioning plate;

[0034] 7. Hydraulic cylinder barrel. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] Please refer to Figures 1 to 6 Example 1:

[0037] This embodiment proposes a replaceable split-type hydraulic cylinder mold, including a lower mold 1 and an upper mold 2. Both the lower mold 1 and the upper mold 2 are cylindrical structures. A mating ring 102 is welded and fitted to the top opening of the lower mold 1, and an abutment ring 202 is welded and fitted to the bottom opening of the upper mold 2.

[0038] The abutting ring 202 abuts against the docking ring 102. Three force-bearing wedges 2021 are welded around the top of the abutting ring 202. Three U-shaped mounting frames 6 are welded around the outer periphery of the docking ring 102. Three positioning plates 601 are slidably mounted around the three U-shaped mounting frames 6. The protruding parts at the head of the three positioning plates 601 are all obliquely shaped. A drive ring 4 is rotatably mounted on the lower mold 1 in the form of a screw thread. A transmission ring 402 is rotatably mounted on the drive ring 4. Three sets of connecting rods 403 are rotatably connected between the transmission ring 402 and the three positioning plates 601.

[0039] Preferably, the transmission ring 402 has three U-shaped connecting frames 4021 welded around its outer periphery. Each set of connecting rods 403 consists of two spaced and parallel connecting rods 403. The tail end of the connecting rod 403 is rotatably connected to the corresponding U-shaped connecting frame 4021, and its head end is rotatably connected to the tail end of the positioning plate 601.

[0040] Preferably, the inner circumference of the transmission ring 402 is provided with an annular track groove, and the top of the drive ring 4 is integrally formed with a track ring 4011, and the annular track groove and the track ring 4011 are rotatably engaged.

[0041] Preferably, the drive ring 4 has multiple inserts 401 welded around its outer periphery, and a force-adding drive shaft 5 is inserted into each insert 401.

[0042] Implementation 2: This embodiment is based on Implementation 1, but with the following additions:

[0043] A core 3 is fixedly connected to the bottom plate of the lower mold 1. A hexagonal tension block 301 and a threaded column 302 are fixedly connected to the upper and lower ends of the core 3, respectively. The threaded column 302 is fixedly connected to the center part of the bottom plate of the lower mold 1 by threading. A pressure ring 303 is fixedly connected to the outer periphery of the top part of the core 3. A circular through hole 203 is opened in the center part of the top plate of the upper mold 2. The top part of the core 3 is connected to the circular through hole 203. An enlarged annular groove 204 is opened on the bottom opening of the circular through hole 203. The pressure ring 303 is inserted into the annular groove 204.

[0044] Preferably, both the pressure ring 303 and the top of the mating ring 102 are fixed with high-temperature resistant sealing rings, and the two high-temperature resistant sealing rings are respectively pressed between the mating ring 102 and the abutment ring 202 and between the pressure ring 303 and the top wall of the annular groove 204.

[0045] Preferably, the mold is composed of a lower mold 1 and an upper mold 2 joined together. The mold has a long cylindrical structure. A casting cavity with an annular structure is formed between the inner circumference of the mold and the outer circumference of the core 3. The casting cavity is used to cast the cylinder barrel 7 of the hydraulic cylinder. A casting nozzle 201 connected to the top part of the outer circumference of the upper mold 2 is welded. A base plate 101 is welded to the bottom of the lower mold 1.

[0046] Preferably, a short insert rod 2022 is fixedly connected to the bottom of the abutment ring 202, and the short insert rod 2022 is inserted and connected to the docking ring 102.

[0047] The following section provides a detailed explanation of the specific details, implementation steps, functions and interrelationships of the above features, and their roles in achieving this technical solution:

[0048] When the three positioning plates 601 slide inward along the radial direction of the mold, the inclined surfaces of their first-end beveled portions abut against the inclined surfaces of the three force-bearing wedges 2021. At this time, through the guiding effect of the inclined surfaces of the three portions and the inclined surfaces of the three force-bearing wedges 2021, the three positioning plates 601 can push and drive the abutment ring 202 to slide down, and press and fix the abutment ring 202 onto the docking ring 102, thereby locking the lower mold 1 and the upper mold 2 together. When the three positioning plates 601 and the three force-bearing wedges 2021 are pulled apart, the downward locking force of the three positioning plates 601 on the abutment ring 202 can be contacted, thereby releasing and unlocking the lower mold 1 and the upper mold 2. The three sets of connecting rods 403, the three positioning plates 601, and the transmission ring 402 are connected together to form a crank-slider mechanism. Through this crank-slider mechanism, the drive ring 4 is driven in both forward and reverse rotation. When the transmission ring 402 slides up and down, it can drive the three positioning plates 601 to slide inward along the radial direction of the mold, controlling the three positioning plates 601 to abut or separate from the three force-bearing wedges 2021, completing the docking, locking and unlocking operations of the lower mold 1 and the upper mold 2 in one go. Compared with the existing technology that designs the lower mold 1 and the upper mold 2 to be assembled and positioned by multiple threaded locking components (such as bolts and nuts), it can save the trouble of having to turn multiple threaded locking components in the forward and reverse directions step by step to lock and unlock the lower mold 1 and the upper mold 2 when assembling or disassembling them. The operation is convenient and efficient. When the drive ring 4 is rotated, the first end of the force-applying drive shaft 5 is inserted into the sleeve 401, and the drive ring 4 can be driven by force-applying torsion through the force-applying drive shaft 5.

[0049] The mold is composed of a lower mold 1 and an upper mold 2 that are designed to be separated and detached. When the mold is transferred and transported, the lower mold 1 and the upper mold 2 are disassembled and separated, and the lower mold 1 and the upper mold 2 are lifted and transported separately. When the lower mold 1 and the upper mold 2 are separated into separate parts, the weight of the mold can be reduced by half, which facilitates the lifting and transfer.

[0050] The core 3 is installed with the lower mold 1 in a threaded and detachable manner. After it is damaged or deformed, it can be removed and replaced separately without replacing the entire lower mold 1, which helps to reduce mold maintenance and repair costs. In addition, the mold can be separated and detached, which allows the lower mold 1 or the upper mold 2 to be removed and replaced separately after damage or deformation, without replacing the entire mold, which also reduces mold maintenance and repair costs.

[0051] The working principle of this embodiment is as follows: The casting nozzle 201 is connected to an external filling funnel through an external pipe. In use, the high-temperature molten metal is poured into the filling funnel. After being poured into the filling funnel, the high-temperature molten metal enters the casting cavity through the external pipe and the casting nozzle 201 in sequence. After the casting cavity is filled with high-temperature molten metal, the filling of high-temperature molten metal is stopped. Then, the high-temperature molten metal is allowed to cool down. After cooling, the high-temperature molten metal is formed into the cylinder barrel 7 in the casting cavity. Finally, the upper mold 2 and the lower mold 1 are disassembled and separated, and the formed cylinder barrel 7 is disassembled and taken out.

[0052] The following points should be noted in this article:

[0053] 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0054] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0055] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A replaceable split-type hydraulic cylinder mold, comprising a lower mold (1) and an upper mold (2), wherein both the lower mold (1) and the upper mold (2) are cylindrical in shape, and a butt ring (102) is welded and fitted onto the top opening of the lower mold (1), and an abutment ring (202) is welded and fitted onto the bottom opening of the upper mold (2). Its features are, The abutting ring (202) abuts against the docking ring (102). Three force-bearing wedges (2021) are welded around the top of the abutting ring (202). Three U-shaped mounting frames (6) are welded around the outer periphery of the docking ring (102). Three positioning plates (601) are slidably mounted around the three U-shaped mounting frames (6). The protruding parts at the top of the three positioning plates (601) are all obliquely shaped, and their oblique surfaces abut against the oblique surfaces of the three force-bearing wedges (2021). The lower mold (1) is rotatably fitted with a drive ring (4) in the form of threaded screwing. A transmission ring (402) is rotatably fitted on the drive ring (4). Three sets of connecting rods (403) are rotatably connected between the transmission ring (402) and the three positioning plates (601).

2. The replaceable split-type hydraulic cylinder mold according to claim 1, characterized in that, The transmission ring (402) has three U-shaped connecting frames (4021) welded around its outer periphery. Each set of connecting rods (403) consists of two spaced and parallel connecting rods (403). The tail end of the connecting rod (403) is rotatably connected to the corresponding U-shaped connecting frame (4021), and its head end is rotatably connected to the tail end of the positioning plate (601).

3. The replaceable split-type hydraulic cylinder mold according to claim 1, characterized in that, The inner circumference of the transmission ring (402) is provided with an annular track groove, and the top of the drive ring (4) is integrally formed with a track ring (4011), and the annular track groove and the track ring (4011) are rotatably engaged.

4. A replaceable split-type hydraulic cylinder mold according to claim 1, characterized in that, The drive ring (4) has multiple inserts (401) welded around its outer periphery, and a force-adding drive shaft (5) is inserted into the inserts (401).

5. A replaceable split-type hydraulic cylinder mold according to claim 1, characterized in that, A core (3) is fixedly connected to the bottom plate of the lower mold (1). A hexagonal tension block (301) and a threaded column (302) are fixedly connected to the upper and lower ends of the core (3). The threaded column (302) is fixedly connected to the center part of the bottom plate of the lower mold (1) by thread screwing.

6. A replaceable split-type hydraulic cylinder mold according to claim 5, characterized in that, The top part of the core (3) is fixedly connected to a pressure ring (303), and the center part of the top plate of the upper mold (2) is provided with a circular through hole (203), and the top part of the core (3) is connected to the circular through hole (203). The bottom opening of the circular through hole (203) is provided with an enlarged annular groove (204), and the pressure ring (303) is inserted into the annular groove (204).

7. A replaceable split-type hydraulic cylinder mold according to claim 6, characterized in that, The top of the pressure ring (303) and the docking ring (102) are both fixed with high-temperature resistant sealing rings. The two high-temperature resistant sealing rings are respectively pressed between the docking ring (102) and the abutment ring (202) and between the pressure ring (303) and the top wall of the annular groove (204).

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