Casting mold facilitating ejection of casting

Abstract

The utility model discloses a casting mould convenient for ejection of a casting, which comprises an upper module, a lower module and an ejection mechanism, the upper module is arranged above the lower module, and the ejection mechanism is arranged below the lower module and extends into the lower module; the upper die set comprises an upper die closing plate and a cover plate, the lower die set comprises a lower die closing plate and a bottom plate, the lower die closing plate is arranged at the top of the bottom plate, the ejection mechanism comprises a supporting seat, an ejection seat and an ejection rod, the two sides of the lower die closing plate and the two sides of the bottom plate are each provided with a through ejection groove, the bottom of the ejection rod is fixed to the ejection seat, and the ejection groove is communicated with the supporting seat. And the top is movably arranged in the ejection groove. According to the casting mold, the ejection seat and the ejection rod in the ejection mechanism are matched with each other, so that the ejection rod can move upwards along the ejection groove to eject a casting out of the casting cavity, the casting does not need to be pried by a tool, and the casting taking efficiency is improved while the casting quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of moulds, in particular to a casting mould convenient for ejecting castings. Background Art

[0002] In the production process of metal products, casting moulds are often used to form products. The structure of the mould generally includes two main parts, an upper mould and a lower mould, which can be separated and combined. When combined, the blank is injected into the mould cavity for forming, and when separated, the casting can be taken out.

[0003] Due to the usually complex structure and shape of the mould and the fact that it bears the expansion force of the blank, when the casting needs to be taken out after processing, some castings will get stuck in the cavity and cannot be taken out, and only tools can be used to pry them out. However, this method not only has low picking efficiency, but also causes varying degrees of damage to the castings, affecting the quality of the castings. Therefore, it needs to be improved. Content of the Utility Model

[0004] To solve the above problems, the utility model provides a casting mould convenient for ejecting castings, which includes an upper mould group, a lower mould group and an ejection mechanism. The upper mould group is arranged above the lower mould group, and the ejection mechanism is arranged below the lower mould group and extends into the lower mould group;

[0005] The upper mould group includes an upper combined template and a cover plate, and the cover plate is arranged on the top of the upper combined template; the lower mould group includes a lower combined template and a bottom plate, the lower combined template is arranged on the top of the bottom plate, the lower combined template is arranged opposite to the upper combined template and the two form a casting cavity;

[0006] The ejection mechanism includes a support seat, an ejection seat and an ejection rod. The support seat is arranged at the bottom of the bottom plate and an activity cavity is formed between the two. The ejection seat is arranged in the activity cavity so as to be movable up and down. A through ejection groove is provided on each side of the lower combined template and the bottom plate. The bottom of the ejection rod is fixed on the ejection seat, and the top is movably arranged in the ejection groove.

[0007] Further, a groove is provided on the cover plate, and a casting port is arranged in the groove. The casting port extends downward into the casting cavity.

[0008] Further, a riser is arranged on one side of the casting port, and the riser is communicated with the top of the casting cavity.

[0009] Further, a guiding groove is arranged in the bottom plate at the position between the two side ejection grooves. A guiding rod is arranged on the ejection seat, and the guiding rod is slidably arranged in the guiding groove.

[0010] Further, a spring is sleeved on the outer side of the guiding rod, and the upper and lower sides of the spring are respectively abutted against the bottom of the bottom plate and the top of the ejection seat.

[0011] Further, positioning grooves are respectively arranged on both sides of the casting cavity in the upper combined template, positioning columns are arranged at positions corresponding to the positioning grooves on the lower combined template, and the positioning columns are arranged in the positioning grooves.

[0012] Further, through holes are also arranged on the support base, connecting rods are arranged at the bottom of the ejector seat, and the connecting rods extend out of the through holes and are connected to an external driving device.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Through the mutual cooperation of the ejector seat and the ejector rod in the ejecting mechanism of the casting mold of the present utility model, the ejector rod can move upward along the ejecting groove to eject the casting from the casting cavity, without using tools to pry the casting, which improves the part taking efficiency while ensuring the quality of the casting. Description of the Drawings

[0015] Figure 1 It is a cross-sectional view of the overall structure of the present utility model.

[0016] In the figure:

[0017] 1 - upper combined template, 2 - cover plate, 3 - lower combined template, 4 - bottom plate, 5 - casting cavity, 6 - groove, 7 - casting gate, 8 - riser, 9 - positioning groove, 10 - positioning column, 11 - support base, 12 - ejector seat, 13 - ejector rod, 14 - movable cavity, 15 - ejecting groove, 16 - guiding groove, 17 - guiding rod, 18 - spring, 19 - through hole, 20 - connecting rod. Specific Embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] As Figure 1 shown, the casting mold for facilitating the ejection of the casting in this embodiment includes an upper module, a lower module, and an ejecting mechanism. The upper module is arranged above the lower module, and the ejecting mechanism is arranged below the lower module and extends into the lower module. Among them:

[0020] The upper mold unit includes an upper combined template 1 and a cover plate 2, and the cover plate 2 is arranged on the top of the upper combined template 1; the lower mold unit includes a lower combined template 3 and a bottom plate 4, the lower combined template 3 is arranged on the top of the bottom plate 4, the lower combined template 3 is arranged opposite to the upper combined template 1, and a casting cavity 5 is formed when the two are buckled. The shape of the casting cavity 5 is not limited and is determined according to the specific shape of the casting.

[0021] A groove 6 is provided on the cover plate 2, and a casting gate 7 is arranged in the groove 6. The casting gate 7 extends downward into the casting cavity 5. A riser 8 is also arranged on one side of the casting gate 7, and the riser 8 communicates with the top of the casting cavity 5; the casting gate 7 is used to pour liquid metal into the casting cavity 5, and the riser 8 is used to store liquid metal and supply metal during the formation of the casting, so as to prevent shrinkage cavities, shrinkage porosity, exhaust gas and slag collection.

[0022] On both sides of the casting cavity 5 in the upper combined template 1, a positioning groove 9 is provided respectively. At the position corresponding to the positioning groove 9 on the lower combined template 3, a positioning post 10 is provided. The positioning post 10 is arranged in the positioning groove 9. Through the cooperation of the positioning groove 9 and the positioning post 10, on the one hand, it plays a guiding role during mold closing, and on the other hand, it is used to limit the positions of the upper combined template 1 and the lower combined template 3, so as to make the shape of the casting cavity 5 stable.

[0023] The ejection mechanism includes a support seat 11, an ejection seat 12 and an ejection rod 13. The support seat 11 is arranged at the bottom of the bottom plate 4, and an activity cavity 14 is formed between the two. The ejection seat 12 is arranged in the activity cavity 14 so as to be movable up and down. On both sides of the lower combined template 3 and the bottom plate 4, a through ejection groove 15 is provided respectively. The bottom of the ejection rod 13 is fixed on the ejection seat 12, and the top is movably arranged in the ejection groove 15.

[0024] A guiding groove 16 is also provided in the bottom plate 4 at the position between the two ejection grooves 15 on both sides. A guiding rod 17 is provided on the ejection seat 12, and the guiding rod 17 is slidably arranged in the guiding groove 16; a spring 18 is sleeved outside the guiding rod 17, and the upper and lower sides of the spring 18 are respectively abutted against the bottom of the bottom plate 4 and the top of the ejection seat 12.

[0025] A through hole 19 is also provided on the support seat 11. A connecting rod 20 is provided at the bottom of the ejection seat 12. The connecting rod 20 extends out of the through hole 19 and is connected to a driving device, such as a cylinder, an oil cylinder, a linear module, an electric push rod and other commonly used driving methods in the field, so as to drive the ejection mechanism to move and eject the casting from the casting cavity 5. There is no need to use tools to pry the casting, which improves the part taking efficiency while ensuring the quality of the casting.

[0026] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A casting mold facilitating the ejection of castings, characterized in that: It includes an upper mold unit, a lower mold unit and an ejection mechanism. The upper mold unit is arranged above the lower mold unit, and the ejection mechanism is arranged below the lower mold unit and extends into the lower mold unit; The upper mold unit includes an upper clamping template and a cover plate, and the cover plate is arranged on the top of the upper clamping template; The lower mold unit includes a lower clamping template and a bottom plate. The lower clamping template is arranged on the top of the bottom plate. The lower clamping template is arranged opposite to the upper clamping template and the two form a casting cavity; The ejection mechanism includes a support seat, an ejection seat and an ejection rod. The support seat is arranged at the bottom of the bottom plate and an activity cavity is formed between them. The ejection seat is arranged in the activity cavity so as to be movable up and down. An ejection groove is provided on each side of the lower clamping template and the bottom plate and penetrates through. The bottom of the ejection rod is fixed on the ejection seat, and the top is movably arranged in the ejection groove.

2. The casting mold for facilitating the ejection of a casting according to claim 1, characterized in that: A groove is provided on the cover plate, and a casting port is arranged in the groove. The casting port extends downward into the casting cavity.

3. The casting mold facilitating the ejection of the casting according to claim 2, characterized in that: A riser is further arranged on one side of the casting port, and the riser communicates with the top of the casting cavity.

4. A casting mold facilitating the ejection of castings according to claim 1, characterized in that: A guide groove is further arranged in the bottom plate at a position between the two side ejection grooves. A guide rod is arranged on the ejection seat, and the guide rod is slidably arranged in the guide groove.

5. A casting mold facilitating the ejection of castings according to claim 4, characterized in that: A spring is sleeved outside the guide rod, and the upper and lower sides of the spring are respectively abutted against the bottom of the bottom plate and the top of the ejection seat.

6. The casting mold facilitating the ejection of a casting according to claim 1, characterized in that: A positioning groove is provided on each side of the casting cavity in the upper clamping template. A positioning post is arranged at a position corresponding to the positioning groove on the lower clamping template, and the positioning post is arranged in the positioning groove.

7. A casting mold facilitating the ejection of castings according to claim 1, characterized in that: A through hole is further arranged on the support seat, and a connecting rod is arranged at the bottom of the ejection seat. The connecting rod extends out of the through hole and is connected to an external driving device.

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