Mold structure convenient to demold

Abstract

The utility model discloses a mould structure convenient to demould, which comprises two lower moulds and two upper moulds which are combined together, the upper moulds are positioned above the lower moulds, the side surfaces of the two lower moulds are respectively provided with a first sliding chute, the side surfaces of the two upper moulds are respectively provided with a second sliding chute, the two first sliding chutes are communicated with each other, and the two second sliding chutes are communicated with each other. The lower dies and the upper dies are combined together through limiting blocks, the two upper dies and the two lower dies are combined together through frame mechanisms, a threaded shaft is rotationally arranged on one set of frame mechanism, a threaded block is connected to the threaded shaft in a threaded fit mode, and a first frame plate and a second frame plate of the frame mechanism can be rapidly spliced together. The assembling process is simple and convenient, the two frame mechanisms can be separated from each other by rotating the rotating disc, so that the lower die and the upper die are driven to be separated in the vertical direction, and compared with a traditional mode that the position of a crowbar is changed through continuous beating, more convenience is achieved.

Description

Technical Field

[0001] This utility model relates to the field of demolding technology, specifically a mold structure that facilitates demolding. Background Technology

[0002] Some equipment is produced by casting, such as cast-in-place instrument transformers. During production, molds need to be assembled first, then casting material is poured into the molds, and after drying and curing, it is initially shaped and then transferred to a drying oven for further drying. Finally, demolding is carried out. The demolding process is generally done manually by knocking the mold apart, for example, using hammers and demolding pry bars. There are few auxiliary demolding tools, and workshop operators find the demolding operation quite laborious. In order not to damage the instrument transformers cast during casting, demolding requires constant knocking and changing the insertion point of the pry bar, which is inefficient. Utility Model Content

[0003] The purpose of this invention is to provide a mold structure that facilitates demolding, thereby overcoming the aforementioned defects in the prior art.

[0004] According to the present invention, a mold structure for easy demolding includes two lower molds and two upper molds combined together. The upper molds are located above the lower molds. Each of the two lower molds has a first sliding groove on its side, and each of the two upper molds has a second sliding groove on its side. The two first sliding grooves are connected to each other, and the two second sliding grooves are connected to each other. The lower molds and the upper molds are combined together by limiting blocks. The two upper molds and the two lower molds are combined together by a frame mechanism. A threaded shaft is rotatably provided on one of the frame mechanisms, and a threaded block is threadedly connected to the threaded shaft.

[0005] In a further technical solution, the frame mechanism includes a first frame plate, a second frame plate, and a third frame plate. Each frame structure includes two first frame plates and two second frame plates. The first frame plate has a first notch at both ends, and the second frame plate has a second notch at both ends. The first frame plate and the second frame plate are spliced ​​together through the first notch and the second notch. Two inserts are fixed on the first frame plate, and the inserts can be inserted into the first groove.

[0006] In a further technical solution, the insert block can be inserted into the second sliding groove.

[0007] In a further technical solution, limiting grooves are provided on the sides of the two upper dies that are far apart from each other, and limiting grooves are also provided on the sides of the two lower dies that are far apart from each other, and the limiting block can be inserted into the limiting groove.

[0008] In a further technical solution, a guide groove is provided on the first frame plate, the guide groove is rectangular, and the third frame plate is inserted into the guide groove.

[0009] A further technical solution is provided where a first slot is provided at the joint of the top surfaces of the two upper molds, and a pad can be inserted into the two upper molds. A demolding roller can be placed on the pad, and the bottom end of the demolding roller can be inserted into the first slot.

[0010] In a further technical solution, the top end of the threaded shaft is rectangular, a turntable is spliced ​​on the top end of the threaded shaft, the bottom end of the threaded shaft is inserted into another first frame plate and is clearance-fitted with the first frame plate, and the side of the threaded block that contacts the lower mold is a smooth plane.

[0011] The beneficial effects of this utility model are: the first frame plate and the second frame plate of the frame mechanism can be quickly spliced ​​together to form a splicing assembly of two lower molds and two upper molds. Then, by inserting the limiting block into the limiting groove, the purpose of assembling the upper mold and the lower mold together is achieved. The assembly process is simple and convenient.

[0012] Furthermore, by rotating the turntable, the two frame mechanisms can be moved away from each other, thereby causing the lower mold and the upper mold to separate in the vertical direction;

[0013] Furthermore, during demolding, simply place the pad on top of the upper mold, then place the demolding roller on the pad and press to separate the two upper molds. Compared to the traditional demolding process of constantly tapping, the demolding process of this application is more convenient and faster. Attached Figure Description

[0014] Figure 1 This is a first three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the second three-dimensional structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the third three-dimensional structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the fourth three-dimensional structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the first frame plate of this utility model;

[0019] Figure 6 This is a schematic diagram of the second frame plate of this utility model;

[0020] Figure 7 This is a schematic diagram of the limiting block of this utility model;

[0021] Figure 8 This is a schematic diagram of the demolding roller of this utility model;

[0022] Figure 9 This is a schematic diagram of the threaded block of this utility model;

[0023] Figure 10 This is a schematic diagram of the turntable of this utility model;

[0024] In the diagram: 10. Lower mold; 11. Upper mold; 12. First frame plate; 13. Second frame plate; 14. Third frame plate; 15. Threaded block; 16. Threaded shaft; 17. Demolding roller; 18. Pad block; 19. Turntable; 20. Limiting block; 21. First slide groove; 22. Second slot; 23. Second slide groove; 24. First slot; 25. Limiting groove; 26. Pouring port; 27. Guide slide groove; 28. Insert block; 29. ​​First notch; 30. Second notch; 31. Insert block; 32. Pad shaft; 33. Rectangular part; 34. Handle; 35. Connecting groove. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description of the utility model is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe a mold structure for easy demolding or several specific implementations of this utility model, and does not strictly limit the scope of protection specifically claimed by this utility model. As used herein, the terms up and down and left and right are not limited to their strict geometric definitions, but include tolerances for reasonable and inconsistent machining or human errors. The specific features of this mold structure for easy demolding are described in detail below:

[0026] Reference Figures 1-10 According to an embodiment of the present invention, a mold structure for easy demolding includes two upper molds 11 and two lower molds 10. The two upper molds 11 and two lower molds 10 are spliced ​​together, with the two upper molds 11 positioned on top and the two lower molds 10 positioned below. The two upper molds 11 are assembled together by a set of frame mechanisms, and the two lower molds 10 are spliced ​​together by another set of frame mechanisms. Each set of frame mechanisms includes two first frame plates 12 and two second frame plates 13.

[0027] Specifically, the first frame plate 12 has an upward-facing first recess 29 at both ends, and the second frame plate 13 has a downward-facing second recess 30 at both ends. The first frame plate 12 and the second frame plate 13 can be spliced ​​together through the first recess 29 and the second recess 30. The two first frame plates 12 and the two second frame plates 13 are spliced ​​together to form a rectangular frame, forming a frame mechanism. The two frame mechanisms are respectively fitted onto the outside of the two lower molds 10 or the two upper molds 11, thereby enabling the splicing of the two upper molds 11 or the two lower molds 10.

[0028] First grooves 21 are provided on both sides of the lower mold 10. The two lower molds 10 are provided with first grooves 21. The first grooves 21 on the same side are connected to form a long rectangle. Second grooves 23 are provided on both sides of the upper mold 11. The two upper molds 11 are provided with second grooves 23. The two second grooves 23 on the same side are connected to form a long rectangle. Two inserts 28 are provided on the first frame plate 12. The inserts 28 on the upper first frame plate 12 are inserted into the second grooves 23, and the inserts 28 on the lower first frame plate 12 are inserted into the first grooves 21.

[0029] Specifically, when demolding is required, to separate the two lower molds 10 or the two upper molds 11, simply remove the second frame plate 13, and then pry one of the lower molds 10 or the upper mold 11 to slide it to one side, without damaging the casting inside the mold.

[0030] The two frame mechanisms are connected by a third frame plate 14. Specifically, each first frame plate 12 is provided with a guide groove 27, which is rectangular in design. The third frame plate 14 is also rectangular in design. The third frame plate 14 is inserted into the guide groove 27 to limit the relative horizontal displacement of the two frame mechanisms.

[0031] Limiting grooves 25 are formed on the side surfaces of the two upper dies 11 that are far apart from each other, and limiting grooves 25 are also formed on the side surfaces of the two lower dies 10 that are far apart from each other. The lower dies 10 and the upper dies 11 are connected by limiting blocks 20. Two insertion blocks 31 are provided on the limiting blocks 20. The insertion blocks 31 can be inserted into the limiting grooves 25 to limit the displacement between the upper dies 11 and the lower dies 10.

[0032] In one embodiment, a first slot 24 is provided on the top surface of the connection between the two upper molds 11, and a pad 18 can be inserted into the top surface of the upper mold 11. A demolding roller 17 can be placed on the pad 18. A pad shaft 32 is provided on both sides of the demolding roller 17. The pad shaft 32 is placed on the pad 18, and the bottom of the demolding roller 17 is inserted into the first slot 24.

[0033] Specifically, when demolding is required, the bottom of the demolding roller 17 is inserted into the first slot 24, the pad shaft 32 abuts against the pad block 18, and then the demolding roller 17 is pressed down to make the upper mold 11 slide to one side.

[0034] In one embodiment, a threaded shaft 16 is rotatably mounted on the upper first frame plate 12. The lower half of the threaded shaft 16 has threads on its outer periphery. The lower half of the threaded shaft 16 can be inserted into the lower first frame plate 12, and the threaded shaft 16 is clearance-fitted with the lower first frame plate 12. The threads of the threaded shaft 16 do not contact the lower first frame plate 12. A threaded block 15 is mounted on the outer periphery of the threaded shaft 16, and the threaded block 15 is threadedly engaged with the threaded shaft 16.

[0035] Specifically, the part of the threaded block 15 that contacts the lower die 10 is a rectangular part 33, which is a plane. The top end of the threaded shaft 16 is rectangular, and a turntable 19 is installed at the top end of the threaded shaft 16. A rectangular connecting groove 35 is opened in the center of the turntable 19, and a handle 34 is installed on the turntable 19.

[0036] In one embodiment, a second slot 22 is provided in the part where the two lower molds 10 are in contact with each other.

[0037] In one embodiment, the top of the upper mold 11 is provided with a pouring port 26.

[0038] The method of using the mold structure of this utility model that facilitates demolding is as follows:

[0039] Two lower molds 10 are spliced ​​together, and then the first frame plate 12 and the second frame plate 13 are spliced ​​together and fitted onto the outside of the two lower molds 10. The insert block 28 on the first frame plate 12 is inserted into the first slide groove 21.

[0040] Then, the two upper molds 11 are placed on top of the lower mold 10 and joined together. Next, another set of frame mechanisms is fitted onto the two upper molds 11. Finally, the third frame plate 14 is inserted into the guide groove 27. Figure 1 Then, the limiting block 20 is installed into the limiting groove 25 to restrict the relative displacement of the upper mold 11 and the lower mold 10 in the vertical and horizontal and front-back directions, thus forming a mold.

[0041] Then the injection molding material is injected into the mold through the pouring port 26.

[0042] When demolding is required, the turntable 19 is placed on the threaded shaft 16, and then the handle 34 is held to rotate the turntable 19, causing the threaded shaft 16 to rotate. The threaded block 15 will move downward. When the threaded block 15 contacts the first frame plate 12 located on the lower side, the threaded shaft 16 continues to rotate. At this time, since the threaded shaft 16 and the first frame plate 12 on the upper side are in a rotatable fit, they can only rotate. Therefore, the threaded shaft 16 will drive the upper frame mechanism to move upward. Since the insert block 28 is inserted into the second slide groove 23, the frame mechanism will drive the two upper molds 11 to move upward, thus performing the first step of demolding.

[0043] Then, remove the two second frame plates 13 of the upper frame mechanism, use the demolding roller 17, insert the lower end of the demolding roller 17 into the first slot 24, press down on the demolding roller 17, and then separate the two upper molds 11 from each other to perform the second demolding step.

[0044] Then insert the demolding roller 17 into the second slot 22, remove the two second frame plates 13 of the lower frame mechanism, and continue to press the demolding roller 17 to disengage the two lower molds 10.

[0045] Then remove the third frame plate 14 and the first frame plate 12 of the two frame mechanisms to complete the demolding.

[0046] Those skilled in the art will appreciate that various modifications to the above embodiments can be made without departing from the overall spirit and concept of this utility model. All such modifications fall within the protection scope of this utility model. The protection scheme of this utility model is defined by the appended claims.

Claims

1. A mold structure for easy demolding, comprising two lower molds (10) and two upper molds (11) assembled together, wherein the upper molds (11) are located above the lower molds (10), characterized in that, The two lower dies (10) are provided with a first slide groove (21) on their sides, and the two upper dies (11) are provided with a second slide groove (23) on their sides. The two first slide grooves (21) are connected, and the two second slide grooves (23) are connected. The lower dies (10) and the upper dies (11) are combined together by a limiting block (20). The two upper dies (11) and the two lower dies (10) are combined together by a frame mechanism. A threaded shaft (16) is rotatably provided on one of the frame mechanisms, and a threaded block (15) is threadedly connected to the threaded shaft (16).

2. The mold structure for easy demolding according to claim 1, characterized in that: The frame structure includes a first frame plate (12), a second frame plate (13), and a third frame plate (14). Each frame structure includes two first frame plates (12) and two second frame plates (13). The first frame plate (12) has a first notch (29) at both ends, and the second frame plate (13) has a second notch (30) at both ends. The first frame plate (12) and the second frame plate (13) are spliced ​​together through the first notch (29) and the second notch (30). Two inserts (28) are fixed on the first frame plate (12), and the inserts (28) can be inserted into the first groove (21).

3. The mold structure for easy demolding according to claim 2, characterized in that: The insert (28) can be inserted into the second groove (23).

4. The mold structure for easy demolding according to claim 1, characterized in that: Limiting grooves (25) are provided on the opposite sides of the two upper molds (11), and limiting grooves (25) are also provided on the opposite sides of the two lower molds (10), and the limiting block (20) can be inserted into the limiting groove (25).

5. The mold structure for easy demolding according to claim 2, characterized in that: The first frame plate (12) has a guide groove (27) which is rectangular, and the third frame plate (14) is inserted into the guide groove (27).

6. The mold structure for easy demolding according to claim 1, characterized in that: A first slot (24) is provided at the joint of the top surfaces of the two upper molds (11). A pad (18) can be inserted into the two upper molds (11). A demolding roller (17) can be placed on the pad (18). The bottom end of the demolding roller (17) can be inserted into the first slot (24).

7. The mold structure for easy demolding according to claim 1, characterized in that: The top end of the threaded shaft (16) is rectangular, and a turntable (19) is spliced ​​on the top end of the threaded shaft (16). The bottom end of the threaded shaft (16) is inserted into another first frame plate (12) and is in clearance fit with the first frame plate (12). The side of the threaded block (15) that contacts the lower mold (10) is a smooth plane.

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