Casting system for U-shaped structure

Abstract

The utility model provides a casting system for a U-shaped structure, and belongs to the technical field of casting molds. Comprising a mold unit with a mold cavity, the mold unit is provided with a body and two supporting arms oppositely arranged on the body, the mold cavities in the two supporting arms are used for forming two side walls of a U-shaped structure, and the two supporting arms are each provided with a connecting end connected with the body and a free end extending in the direction away from the body. A plurality of tie units are arranged between the free ends of the two supporting arms, each tie unit is provided with a supporting part and connecting parts arranged at the two ends of the supporting part, and the two connecting parts are used for being connected with the free end of one supporting arm respectively so that the distance between the free ends of the two supporting arms can be fixed, and deformation of the supporting arms can be prevented; the technical problem that an existing mold is prone to deformation is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting moulds, and in particular relates to a casting system for a U-shaped structure. Background Art

[0002] The typical feature of the U-shaped structure is that it has two side walls that are relatively spaced apart. A common representative is the C2F upper beam on an extruder. Specifically, during the casting process, the mold also has two parts that are relatively spaced apart, and the mold cavity in the part is used to form the two side walls.

[0003] In the existing casting process of the U-shaped structure, the mold part used to form the two side walls is easily deformed by the shrinkage stress during the cooling process of the product, which causes the two side walls to no longer remain parallel. Once these two parts of the mold are deformed, they will eventually affect the shape of the product.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The utility model aims to provide a casting system for a U-shaped structure to solve the technical problem that the existing mold is prone to deformation.

[0006] In order to achieve the above-mentioned purpose, the casting system for U-shaped structure of the utility model provides the following technical solutions:

[0007] A casting system for a U-shaped structure comprises a mold unit having a mold cavity, wherein the mold unit comprises a main body and two arms arranged relatively to the main body, the mold cavities inside the two arms are used to form two side walls of the U-shaped structure, the two arms respectively comprise a connecting end connected to the main body and a free end extending in a direction away from the main body, a plurality of tie units are arranged between the free ends of the two arms, the tie units comprise a supporting portion and connecting portions arranged at both ends of the supporting portion, the two connecting portions are respectively used to connect the free ends of one arm to fix the distance between the free ends of the two arms to prevent the arms from being deformed.

[0008] As a further optimized technical solution, the support portion has a plurality of support tubes and an adjustment structure for connecting the support tubes. The adjustment structure can adjust the distance between two adjacent support tubes to ultimately adjust the distance between the two connecting portions.

[0009] As a further optimized technical solution, the adjustment structure includes a screw rod, and both ends of the screw rod have thread sections with opposite thread rotation directions. Internal threads are correspondingly arranged inside the two adjacent support tubes. The two ends of the screw rod respectively extend into the support tube on one side and are threadedly connected to the support tube. By screwing the middle part of the screw rod, the distance between the two support tubes can be reduced or expanded.

[0010] As a further optimized technical solution, the adjustment structure also includes a protective tube sleeved on the outside of the screw, the middle of the protective tube is fixedly connected to the middle of the screw, and both ends of the protective tube are respectively sleeved on the support tubes on both sides and slidably cooperate with the support tubes.

[0011] As a further optimized technical solution, the protection tube has a driving section with a regular polygonal cross section for being clamped by the force-applying structure.

[0012] As a further optimized technical solution, the driving section is arranged in the middle of the protection tube, and the cross section of the driving section is a regular hexagon.

[0013] As a further optimized technical solution, the connecting portion includes a U-shaped slot for being clamped on the free end of the support arm.

[0014] As a further optimized technical solution, a clamping structure is provided on a side of at least one of the U-shaped slots away from the supporting portion.

[0015] As a further optimized technical solution, the clamping structure includes a stud, which crosses the side wall of the U-shaped slot and is threadedly connected to the U-shaped slot.

[0016] As a further optimized technical solution, one end of the stud extending into the U-shaped slot is rotatably connected to a pressure relief block.

[0017] Beneficial effect: The utility model arranges a plurality of tie-in units between the free ends of the two arms. The supporting parts of the tie-in units can prevent the free ends of the two arms from being tightened and deformed inwardly. The connecting parts at both ends of the tie-in units are used to tighten the free ends of the two arms together with the supporting parts to prevent the free ends of the two arms from being stretched and deformed outwardly. That is, by arranging the tie-in units, the two arm parts of the mold unit can be effectively prevented from being deformed during the casting process, thereby ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of a tie-tying unit according to an embodiment of the utility model;

[0021] Figure 3 It is a partial cross-sectional schematic diagram of a tie-fastening unit according to an embodiment of the utility model;

[0022] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A.

[0023] In the figure: 1, mold unit; 11, main body; 12, support arm; 2, tensioning unit; 21, support part; 211, support tube; 212, screw; 213, protective tube; 2131, driving section; 22, connecting part; 221, U-shaped slot; 222, stud; 223, pressure relief block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0025] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0027] The utility model provides a casting system for a U-shaped structure. By setting a tie unit, a plurality of tie units are arranged at the free ends of two support arms to fix the free ends of the support arms, thereby effectively reducing the deformation of the mold unit.

[0028] Specifically, Figure 1 As shown, the casting system for the U-shaped structure includes a mold unit 1 having a mold cavity and a tie unit 2 arranged on the mold unit 1. The mold cavity is used for casting to form a product, and the tie unit 2 is used to prevent partial structure deformation of the mold unit 1 during the casting process.

[0029] The mold unit 1 has a main body 11 and two arms 12 arranged opposite to the main body 11. The mold cavity inside the two arms 12 is used to form two side walls of the U-shaped structure. The two arms 12 respectively have a connecting end connected to the main body 11 and a free end extending away from the main body 11, wherein the tie unit 2 is installed between the free ends of the two arms 12.

[0030] like Figure 2 As shown, the anchor unit 2 has a rigid support portion 21 and connecting portions 22 arranged at both ends of the support portion 21. The two connecting portions 22 are respectively used to connect the free ends of a support arm 12, so that the distance between the free ends of the two support arms 12 can be fixed, thereby preventing the support arms 12 from being deformed.

[0031] Specifically, the support portion 21 has a plurality of support tubes 211 and an adjustment structure connecting the support tubes 211. In this embodiment, the support portion 21 has two support tubes 211, and the adjustment structure is arranged between the two support tubes 211 to connect the two support tubes 211. The adjustment structure can adjust the distance between two adjacent support tubes 211, so as to finally adjust the distance between the two connection portions 22.

[0032] like Figure 3 , Figure 4 As shown, the adjustment structure specifically includes a screw rod 212, and both ends of the screw rod 212 have threaded sections with opposite threaded directions, and the opposite ends of two adjacent support tubes 211 are correspondingly provided with internal threads, and both ends of the screw rod 212 extend into the support tube 211 on one side and are threadedly connected with the support tube 211. After the connecting portion 22 is installed on the mold unit 1, the distance between the two support tubes 211 can be reduced or expanded by rotating the middle part of the screw rod 212 counterclockwise or clockwise, which facilitates the disassembly and assembly of the tie-tying unit 2 as a whole, and enables the tie-tying unit 2 to be suitable for mold units 1 of different models.

[0033] The specific mold unit 1 needs to be placed in a sand box for use during the production process. In order to prevent the exposed threaded area of ​​the screw 212 from being contaminated during use and thus affecting the normal cooperation with the support tube 211, the adjustment structure also includes a protective tube 213 sleeved on the outside of the screw 212. The middle of the protective tube 213 is fixedly connected to the middle of the screw 212, and the two ends of the protective tube 213 are respectively sleeved on the support tubes 211 on both sides and slidably cooperate with the support tubes 211. In this way, by twisting the protective tube 213, the screw 212 can be rotated, and the two ends of the protective tube 213 are sleeved on the support tube 211, covering the exposed threaded area of ​​the screw 212, ensuring the normal use of the adjustment structure.

[0034] If the outer surface of the protective tube 213 is cylindrical, it will inevitably be inconvenient to clamp the protective tube 213 with a force-applying structure such as a wrench when screwing the protective tube 213. In particular, relative sliding is likely to occur between the force-applying structure and the outer surface of the protective tube 213 during force-applying rotation. In order to solve this technical problem, a driving section 2131 having a regular polygonal cross-section is provided on the protective tube 213, so that the force-applying structure is no longer likely to slide when screwing the driving section 2131.

[0035] In this embodiment, the driving section 2131 is disposed in the middle of the protection tube 213 , and the cross section of the driving section 2131 is a regular hexagon.

[0036] like Figure 2 As shown, the two ends of the support portion 21 are fixedly connected with the connecting portion 22, and the connecting portion 22 includes a U-shaped slot 221 for being clamped on the free end of the support arm 12. A clamping structure is provided on one side of at least one U-shaped slot 221 away from the support portion 21.

[0037] In this embodiment, a clamping structure is provided on one side of the two U-shaped slots 221 away from the support portion 21. This allows the tie-in unit 2 to be applicable to more types of mold units 1, and is convenient for installation and removal from the mold unit 1. In addition, the mold unit 1 has high requirements for processing accuracy, but the U-shaped slots 221 are provided in this way, so that the U-shaped slots 221 do not have to be strictly adapted to the mold unit 1, reducing the processing accuracy, thereby facilitating processing.

[0038] In this embodiment, the clamping structure includes a stud 222, which crosses the side wall of the U-shaped slot 221 and is threadedly connected to the U-shaped slot 221. The actual installation and fixing degree of the U-shaped slot 221 is controlled by controlling the distance that the stud 222 extends into the U-shaped slot 221.

[0039] In order to reduce the damage to the surface of the mold unit 1 caused by the end of the stud 222 pressing the mold unit 1, the end of the stud 222 extending into the U-shaped slot 221 is rotatably connected to a pressure relief block 223. In this way, when the stud 222 is screwed into the U-shaped slot 221, the pressure relief block 223 first moves with the stud 222 toward the side wall of the mold unit 1. When the pressure relief block 223 is pressed onto the surface of the mold unit 1, the stud 222 is continuously rotated to adjust the degree of compression. At this time, since the pressure relief block 223 has friction with the surface of the mold unit 1, it no longer rotates with the stud 222. Rotating the stud 222 will further adjust the compression force on the mold unit 1, but the mold unit 1 will not be continuously worn due to the rotation of the stud 222. In addition, the diameter of the pressure relief block 223 is larger than the diameter of the stud 222, which will further reduce the pressure of the stud 222 on the mold unit 1.

[0040] When installing the tie-tying unit 2, first, the U-shaped slots 221 at both ends are clamped onto the free ends of the two arms 12 of the mold unit 1, and then the protective tube 213 is screwed so that the two U-shaped slots 221 are close to the side wall of the support tube 211 and press against the inner side of the arm 12, and then the clamping structure on each U-shaped slot 221 is screwed respectively to clamp the outer side of the arm 12.

[0041] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A casting system for a U-shaped structure, comprising a mold unit (1) having a mold cavity, wherein the mold unit (1) comprises a body (11) and two arms (12) arranged opposite to the body (11), wherein the mold cavity inside the two arms (12) is used to form two side walls of the U-shaped structure, and the two arms (12) respectively have a connection end connected to the body (11) and a free end extending in a direction away from the body (11), characterized in that: A plurality of tie-down units (2) are arranged between the free ends of the two support arms (12), and the tie-down units (2) comprise a support portion (21) and connecting portions (22) arranged at both ends of the support portion (21), and the two connecting portions (22) are respectively used to connect the free end of one support arm (12) to fix the distance between the free ends of the two support arms (12) and prevent the support arms (12) from being deformed.

2. The casting system for a U-shaped structure according to claim 1, characterized in that: The support portion (21) comprises a plurality of support tubes (211) and an adjustment structure for connecting the support tubes (211); the adjustment structure can adjust the distance between two adjacent support tubes (211) to ultimately adjust the distance between two connection portions (22).

3. The casting system for a U-shaped structure according to claim 2, characterized in that: The adjustment structure comprises a screw rod (212), wherein both ends of the screw rod (212) are provided with thread segments with opposite thread directions, and internal threads are correspondingly arranged inside two adjacent support tubes (211). Both ends of the screw rod (212) extend into the support tube (211) on one side and are threadedly connected to the support tube (211). By screwing the middle part of the screw rod (212), the distance between the two support tubes (211) can be reduced or expanded.

4. The casting system for a U-shaped structure according to claim 3, characterized in that: The adjustment structure further comprises a protection tube (213) sleeved on the outside of the screw rod (212), the middle portion of the protection tube (213) being fixedly connected to the middle portion of the screw rod (212), and the two ends of the protection tube (213) being sleeved on the support tubes (211) on both sides respectively and slidably matched with the support tubes (211).

5. The casting system for a U-shaped structure according to claim 4, characterized in that: The protection tube (213) is provided with a driving section (2131) having a regular polygonal cross section, which is used for being clamped by the force-applying structure.

6. The casting system for a U-shaped structure according to claim 5, characterized in that: The driving section (2131) is arranged in the middle of the protection tube (213), and the cross section of the driving section (2131) is a regular hexagon.

7. The casting system for a U-shaped structure according to any one of claims 1 to 6, characterized in that: The connecting portion (22) comprises a U-shaped slot (221) for being clamped on the free end of the supporting arm (12).

8. The casting system for a U-shaped structure according to claim 7, characterized in that: A clamping structure is provided on a side of at least one of the U-shaped slots (221) away from the support portion (21).

9. The casting system for a U-shaped structure according to claim 8, characterized in that: The clamping structure comprises a stud (222), wherein the stud (222) crosses the side wall of the U-shaped slot (221) and is threadedly connected to the U-shaped slot (221).

10. The casting system for a U-shaped structure according to claim 9, characterized in that: One end of the stud (222) extending into the U-shaped slot (221) is rotatably connected to a pressure relief block (223).

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