A valve body mold that is easy to demould

Abstract

The present invention relates to a valve body mold that is easy to demould, which includes an upper mold and a lower mold, wherein the lower mold is provided with a demoulding component for demoulding the valve body, the lower mold is provided with a demoulding module, the demoulding module is provided with a conflicting plane, the conflicting plane covers the process plane of the valve body, the demoulding module is provided with an upper part and a lower part, the upper part is plugged with the upper mold, the lower part is plugged with the lower mold, a positioning piece is connected to the demoulding module, the positioning piece is used to position the demoulding module at the initial position of the lower mold, the lower mold is provided with a placement groove, and a limiting component that limits the demoulding module from being separated from the lower mold is provided in the placement groove. The present invention has the effect of reducing the difficulty of demoulding the valve body.

Description

Technical Field

[0001] The invention relates to the technical field of mold processing, in particular to a valve body mold which is easy to demould. Background Art

[0002] The valve body is a major component of the valve. Due to its unique shape, workers often use injection molds to complete the production of valve body blanks.

[0003] Reference Figure 1 In the prior art, a process plane 011 is designed on the surface of the valve body 01 , and the process plane 011 is used as a reference plane when the valve body 01 is processed.

[0004] When the valve body is demoulded after injection molding, since the process plane is parallel to the moving direction of the upper mold, whether the upper mold moves or the valve body is demoulded, it will cause a certain degree of extrusion friction on the process plane, increasing the friction between the valve body and the upper and lower molds, making it difficult to demould the valve body. There is a possibility that the valve body is stuck in the lower mold, which increases the difficulty of demoulding the valve body. Summary of the invention

[0005] In order to reduce the difficulty of demoulding the valve body, the present application provides a valve body mold that is easy to demould.

[0006] The present application provides a valve body mold that is easy to demould and adopts the following technical solution:

[0007] A valve body mold that is easy to demold, includes an upper mold and a lower mold, the lower mold is provided with a demolding component for demolding the valve body, the lower mold is provided with a demolding module, the demolding module is provided with a resistance plane, the resistance plane covers the process plane of the valve body, the demolding module is provided with an upper part and a lower part, the upper part is plug-fitted with the upper mold, and the lower part is plug-fitted with the lower mold, the demolding module is connected with a positioning piece, the positioning piece is used to position the demolding module at the initial position of the lower mold, the lower mold is provided with a placement groove, and a limiting component that limits the demolding module from separating from the lower mold is provided in the placement groove.

[0008] By adopting the above technical solution, when demoulding the valve body, the staff uses the equipment to remove the upper mold, and then uses the demoulding component to push the valve body out of the lower mold. During this process, the demoulding module adheres to the process plane and moves with the valve body until the demoulding module is restricted by the restriction component and stops moving. The demoulding module then detaches from the process plane and returns to the lower mold due to its own weight, achieving the effect of demoulding the valve body. The staff uses the demoulding module to cover the process plane of the valve body, reducing the friction between the valve body and the upper and lower molds during demoulding, making it easier for the valve body to be pushed out of the lower mold by the demoulding component, reducing the difficulty of demoulding the valve body.

[0009] Optionally, the side wall of the upper part away from the interference plane is a first side wall, and the two opposite side walls of the upper part are a second side wall and a third side wall. The distance between the first side wall and the interference plane gradually decreases from bottom to top. Taking the direction from the first side wall to the interference plane as a reference direction, the distance between the second side wall and the third side wall gradually decreases, and the distance between the second side wall and the third side wall also gradually decreases from bottom to top. The upper part and the lower part are symmetrically arranged with the top surface of the lower mold as a reference plane.

[0010] By adopting the above technical solution, when the upper mold and the lower mold are opened and closed, there is a possibility that the upper mold is stuck by the stripping module, which will affect the production of the valve body. The upper part is easier to insert into the upper mold by using the cooperation of the first side wall, the second side wall and the third side wall. Similarly, the lower part is easier to be positioned in the lower mold according to its own weight. This arrangement reduces the possibility of the stripping module getting stuck in the upper mold and reduces the possibility of the stripping module affecting the opening and closing between the upper mold and the lower mold.

[0011] Optionally, the positioning member is a positioning block, the positioning member is integrally formed on the bottom wall of the lower portion, a positioning groove is formed in the lower mold at a position corresponding to the positioning member, and the positioning member is plugged into the positioning groove.

[0012] By adopting the above technical solution, the staff uses the plug-in cooperation of the positioning block and the positioning groove to enable the stripping module to return to the initial position when it falls, which facilitates preparation for the next injection molding of the valve body.

[0013] Optionally, the limiting assembly includes a limiting block and a locking bolt, the limiting block is placed in the placement groove, the locking bolt passes through the limiting block and the lower mold, the locking bolt presses against the limiting block and cooperates with the lower mold thread, a limiting groove is opened at the position corresponding to the limiting block on the stripping module, the stripping module is partially located in the limiting groove, and when the stripping module is in the initial state, a distance is left between the bottom wall of the limiting groove and the limiting block.

[0014] By adopting the above technical solution, when limiting the module removal, the staff places the limiting block in the placement groove, and then rotates the locking bolt to make the locking bolt thread fit on the lower mold and press against the limiting block so that the limiting block is locked in the placement groove, thereby limiting the movement stroke of the module removal and achieving the effect of limiting the module removal.

[0015] Optionally, the limiting assembly includes a limiting cylinder, a sliding rod and a limiting ring, one end of the limiting cylinder is rotatably connected in the placement groove, one end of the sliding rod is plugged into the other end of the limiting cylinder, one end of the sliding rod is fixedly connected to a connecting rod, the limiting cylinder has a sliding groove at a position corresponding to the connecting rod, the connecting rod is slidably fitted in the sliding groove, the other end of the sliding rod is rotatably connected to the stripping module, and the limiting ring is threadedly fitted on the surface of the limiting cylinder.

[0016] By adopting the above technical solution, when limiting the stripping module, the stripping module rises with the valve body, driving the sliding rod to move, causing the connecting rod to move until the connecting rod hits the limiting ring, limiting the movement of the sliding rod, thereby limiting the movement stroke of the stripping module, and achieving the effect of limiting the stripping module. The staff can also use the limiting ring to adjust the movement stroke of the stripping module, which is convenient for the staff to adjust the movement stroke of the stripping module according to the demoulding height of the valve body.

[0017] Optionally, a locking nut is threadedly fitted on the surface of the limiting cylinder, the locking nut fits the limiting ring, and the locking nut is located between the limiting ring and the other end of the limiting cylinder.

[0018] By adopting the above technical solution, the connecting rod hits the restriction ring, which is easy to loosen the restriction ring and there is a possibility that the restriction ring will move, which will extend the movement stroke of the module stripping. The staff uses the locking nut to tighten the restriction ring, thereby increasing the friction between the restriction ring and the restriction cylinder, reducing the possibility of the restriction ring moving, and ensuring that the module stripping can be separated from the valve body in time.

[0019] Optionally, the demolding assembly includes a lifting plate, a fixed plate, a stopper and a push rod, the lifting plate is connected to the fixed plate, several push rods are connected between the lifting plate and the fixed plate, the push rods pass through the fixed plate and the lower mold and slide with the lower mold, several stoppers are connected to the lower mold, and the lifting plate is located between the lower mold and the stopper.

[0020] By adopting the above technical solution, when demolding the valve body, the staff uses the equipment to push out the lifting plate, so that the lifting plate drives the ejector rod and the fixed plate to move upward, the ejector rod contacts the valve body, and pushes the valve body out of the lower mold, thereby achieving the effect of demolding the valve body.

[0021] Optionally, at least two groups of guide components are arranged between the upper mold and the lower mold, and the guide components include an upper cylinder and a guide column. The upper cylinder is detachably connected to the upper mold, and the guide column is detachably connected to the lower mold at a position corresponding to the upper cylinder. A guide groove is opened at the bottom end of the upper cylinder, and a guide cone surface is arranged at the top end of the guide column. The top end of the guide column is plugged into the guide groove.

[0022] By adopting the above technical solution, when the upper mold and the lower mold are closed, the staff uses the cooperation of the guide cone surface and the guide groove to make the guide column smoothly enter the upper cylinder, thereby limiting the relative position between the upper mold and the lower mold and reducing the possibility of offset between the upper mold and the lower mold.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When demolding the valve body, the staff uses the equipment to remove the upper mold, and then uses the demolding component to push the valve body out of the lower mold. During this process, the demolding module adheres to the process plane and moves with the valve body until the demolding module is restricted by the restriction component and stops moving. The demolding module then detaches from the process plane and returns to the lower mold due to its own weight, achieving the effect of demolding the valve body. The staff uses the demolding module to cover the process plane of the valve body, reducing the friction between the valve body and the upper and lower molds during demolding, making it easier for the demolding component to push the valve body out of the lower mold, reducing the difficulty of demolding the valve body;

[0025] 2. When limiting the stripping module, the stripping module rises with the valve body, driving the sliding rod to move, causing the connecting rod to move until the connecting rod hits the limiting ring, limiting the movement of the sliding rod, thereby limiting the movement of the stripping module and achieving the effect of limiting the stripping module. The staff can also use the limiting ring to adjust the movement of the stripping module, which is convenient for the staff to adjust the movement of the stripping module according to the demoulding height of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a valve body in the prior art.

[0027] Figure 2 It is a schematic diagram of the overall structure of the valve body mold that is easy to demold in Example 1 of the present application.

[0028] Figure 3 It is a schematic diagram of the structure of the lower mold and the demolding module in Example 1 of the present application.

[0029] Figure 4 It is a schematic diagram of the structure of the stripping module in Example 1 of the present application.

[0030] Figure 5 It is a schematic structural diagram of the interference plane on the stripping module in Example 1 of the present application.

[0031] Figure 6 It is a cross-sectional view used to illustrate the structure of the locking assembly and the demoulding assembly in Example 1 of the present application.

[0032] Figure 7 yes Figure 6 Enlarged view of point A in the middle.

[0033] Figure 8It is an exploded view used to illustrate the structure of the demoulding component in Example 1 of the present application.

[0034] Fig. 9 It is a schematic diagram of the position of the limiting component on the lower mold in Example 2 of the present application.

[0035] Fig.10 It is a structural schematic diagram of the restriction component in Example 2 of the present application.

[0036] Explanation of the accompanying drawings: 01, valve body; 011, process plane; 1, upper mold; 2, lower mold; 21, positioning groove; 3, demoulding module; 31, interference plane; 32, upper part; 321, first side wall; 322, second side wall; 323, third side wall; 33, lower part; 34, positioning member; 35, limiting groove; 4, limiting assembly; 41, limiting block; 42, locking bolt; 43, limiting cylinder; 44, sliding rod; 441, connecting rod; 45, limiting ring; 5, demoulding assembly; 51, lifting plate; 52, fixing plate; 53, stopper; 54, ejector rod; 6, guide assembly; 61, upper cylinder; 611, guide groove; 62, guide column; 621, guide cone; 7, locking nut. DETAILED DESCRIPTION

[0037] The following is combined with Figure 2-10 This application is described in further detail.

[0038] Embodiment 1 of the present application discloses a valve body mold that is easy to demold. Figure 2 The valve body mold that is easy to demold includes an upper mold 1 and a lower mold 2, and the upper mold 1 is located on the top surface of the lower mold 2.

[0039] Reference Figure 3 , Figure 4 and Figure 5 , a stripping module 3 is provided on the lower mold 2, and a contact plane 31 is provided on the side wall of the stripping module 3 close to the cavity of the lower mold 2. An upper part 32 and a lower part 33 are also provided on the stripping module 3, and the upper part 32 and the lower part 33 are symmetrically arranged with the top surface of the lower mold 2 as the reference plane. The side wall of the upper part 32 away from the contact plane 31 is the first side wall 321, and the two opposite side walls of the upper part 32 are the second side wall 322 and the third side wall 323. From the lowest point of the upper part 32 to the highest point of the upper part 32 as the reference direction, the distance between the first side wall 321 and the contact plane 31 gradually decreases, and the distance between the second side wall 322 and the third side wall 323 also gradually decreases. Taking the direction from the first side wall 321 to the contact plane 31 as the reference direction, the distance between the second side wall 322 and the third side wall 323 gradually decreases, and the distance between the top wall of the upper part 32 and the lowest point of the upper part 32 gradually decreases. The lower part 33 is arranged in the same way. The upper portion 32 is plug-fitted with the upper die 1 , and the lower portion 33 is plug-fitted with the lower die 2 .

[0040] Reference Figure 4 , Figure 6 and Figure 7 In order to locate the stripping module 3 at the initial position of the lower mold 2, a positioning member 34 is provided on the stripping module 3. The positioning member 34 is a positioning block, and the positioning member 34 is integrally formed at the bottom end of the stripping module 3. A positioning groove 21 is opened at the position of the lower mold 2 corresponding to the positioning member 34, and the positioning member 34 is plugged into the positioning groove 21.

[0041] Reference Figure 3 and Figure 7 , a limiting assembly 4 is provided on the lower die 2, and the limiting assembly 4 includes a limiting block 41 and a locking bolt 42. A placement groove is provided on the lower die 2, and the limiting block 41 is provided in the placement groove. The locking bolt 42 passes through the limiting block 41 and the lower die 2, and the locking bolt 42 is threadedly matched with the lower die 2 and pressed against the limiting block 41. A limiting groove 35 is provided at the position of the stripping module 3 corresponding to the limiting block 41, and the limiting block 41 is partially located in the limiting groove 35. When the stripping module 3 is in the initial position, a distance is left between the bottom wall of the limiting groove 35 and the limiting block.

[0042] Reference Figure 6 and Figure 8 , a demoulding assembly 5 is provided on the lower mold 2, and the demoulding assembly 5 includes a lifting plate 51, a fixed plate 52, a stopper 53 and a push rod 54. The stopper 53 is connected to a plurality of blocks on the lower mold 2 by bolts, and four blocks are used as an example in this embodiment. The lifting plate 51 and the fixed plate 52 are both located between the stopper 53 and the lower mold 2, and the lifting plate 51 and the fixed plate 52 are connected by bolts. A plurality of push rods 54 are arranged between the fixed plate 52 and the lower mold 2, and one end of the push rod 54 close to the fixed plate 52 is fixedly connected to a mounting head, and a mounting groove is provided at the fixed plate 52 at the position corresponding to the mounting head, and the mounting head is plugged into the mounting groove.

[0043] When demolding, the staff uses the equipment to first remove the upper mold 1, and then uses the equipment to move the lifting plate 51, driving the fixed plate 52 and the ejector rod 54 to rise, and the valve body 01 is ejected out of the cavity by the ejector rod 54, and the stripping module 3 rises with the valve body 01 until the bottom wall of the limiting groove 35 hits the limiting block 41, so that the stripping module 3 stops moving, and the stripping module 3 is separated from the valve body 01, and after moving a short distance to the position of the locking bolt 42, it descends by its own weight until the positioning piece 34 is inserted into the positioning groove 21, and the stripping module 3 is reset, thereby achieving the effect of demolding the valve body 01.

[0044] Reference Figure 5 and Figure 7In order to ensure the relative position between the upper die 1 and the lower die 2 is accurate, at least two sets of guide components 6 are arranged between the upper die 1 and the lower die 2. In this embodiment, two sets are taken as an example. The guide components 6 include an upper cylinder 61 and a guide column 62. The upper cylinder 61 is connected to the upper die 1 by bolts, and the guide column 62 is connected to the lower die 2 at a position corresponding to the upper cylinder 61 by bolts. The top of the guide column 62 is provided with a guide cone 621, and the bottom of the upper cylinder 61 is provided with a guide groove 611, and the top of the guide column 62 is plugged into the guide groove 611.

[0045] The implementation principle of a valve body mold that is easy to demold in Example 1 of the present application is as follows: when the valve body 01 is injected, the staff uses the equipment to close the upper mold 1. At this time, the guide column 62 is plugged into the guide groove 611. After the injection molding of the valve body 01 is completed, the staff uses the equipment to remove the upper mold 1, and then uses the equipment to move the lifting plate 51, driving the fixed plate 52 and the push rod 54 to rise, and the valve body 01 is ejected out of the cavity by the push rod 54, and the stripping module 3 rises with the valve body 01 until the bottom wall of the limiting groove 35 hits the limiting block 41, so that the stripping module 3 stops moving, and the stripping module 3 is separated from the valve body 01, and after moving a short distance to the position of the locking bolt 42, it descends by its own weight until the positioning member 34 is inserted into the positioning groove 21, and the stripping module 3 is reset, thereby achieving the effect of demolding the valve body 01.

[0046] The staff uses the demoulding module 3 to cover the process plane 011 of the valve body 01, reducing the friction between the valve body 01 and the upper mold 1 and the lower mold 2 during demoulding, making it easier for the valve body 01 to be ejected from the lower mold 2 by the demoulding component 5, thereby reducing the difficulty of demoulding the valve body 01.

[0047] Embodiment 2: The difference between this embodiment and embodiment 1 is that the structure of the limiting component 4 is different.

[0048] Reference Fig. 9 and Fig.10 The limiting assembly 4 includes a limiting cylinder 43, a sliding rod 44 and a limiting ring 45. One end of the limiting cylinder 43 is hinged in the placement groove, and the other end of the limiting cylinder 43 is provided with a plug-in hole. One end of the sliding rod 44 is plugged into the plug-in hole, and one end of the sliding rod 44 is fixedly connected with a plurality of connecting rods 441. In this embodiment, two are taken as an example. The limiting cylinder 43 is provided with a sliding groove at the position corresponding to the connecting rod 441. The connecting rod 441 slides in the sliding groove, and the other end of the sliding rod 44 is hinged in the limiting groove 35 of the stripping module 3. The limiting ring 45 is threadedly engaged with the other end of the limiting cylinder 43. The limiting cylinder 43 is also threadedly engaged with a locking nut 7, which presses against the limiting ring 45. The locking nut 7 is located between the limiting ring 45 and the opening end of the limiting cylinder 43. The locking nut 7 is used to increase the friction between the limiting ring 45 and the limiting cylinder 43, thereby reducing the possibility of movement of the limiting ring 45.

[0049] When limiting the stripping module 3, the stripping module 3 rises with the valve body 01, driving the sliding rod 44 to move, causing the connecting rod 441 to move, until the connecting rod 441 hits the limiting ring 45, limiting the movement of the sliding rod 44, thereby limiting the movement stroke of the stripping module 3, achieving the effect of limiting the stripping module 3. The staff can also use the limiting ring 45 to adjust the movement stroke of the stripping module 3, which is convenient for the staff to adjust the movement stroke of the stripping module 3 according to the demoulding height of the valve body 01.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A valve body mold that is easy to demold, comprising an upper mold (1) and a lower mold (2), characterized in that: The lower mold (2) is provided with a demoulding component (5) for demoulding the valve body (01), the lower mold (2) is provided with a demoulding module (3), the demoulding module (3) is provided with a contact plane (31), the contact plane (31) covers the process plane (011) of the valve body (01), the demoulding module (3) is provided with an upper part (32) and a lower part (33), the upper part (32) is plug-fitted with the upper mold (1), and the lower part (33) is plug-fitted with the lower mold (2), the demoulding module (3) is connected with a positioning member (34), the positioning member (34) is used to position the demoulding module (3) at the initial position of the lower mold (2), the lower mold (2) is provided with a placement groove, and a limiting component (4) is provided in the placement groove for limiting the demoulding module (3) from being separated from the lower mold (2); the limiting component (4) includes a limiting cylinder ( 43), a sliding rod (44) and a limiting ring (45), one end of the limiting cylinder (43) is rotatably connected in the placement groove, one end of the sliding rod (44) is plugged into the other end of the limiting cylinder (43), one end of the sliding rod (44) is fixedly connected with a connecting rod (441), the limiting cylinder (43) is provided with a sliding groove at a position corresponding to the connecting rod (441), the connecting rod (441) is slidably fitted in the sliding groove, the other end of the sliding rod (44) is rotatably connected to the stripping module (3), the limiting ring (45) is threadedly fitted on the surface of the limiting cylinder (43); the surface of the limiting cylinder (43) is threadedly fitted with a locking nut (7), the locking nut (7) fits the limiting ring (45), and the locking nut (7) is located between the limiting ring (45) and the other end of the limiting cylinder (43).

2. The valve body mold that is easy to demold according to claim 1, characterized in that: The side wall of the upper part (32) away from the interference plane (31) is the first side wall (321), and the two opposite side walls of the upper part (32) are the second side wall (322) and the third side wall (323). The distance between the first side wall (321) and the interference plane (31) gradually decreases from bottom to top. Taking the direction from the first side wall (321) to the interference plane (31) as the reference direction, the distance between the second side wall (322) and the third side wall (323) gradually decreases, and the distance between the second side wall (322) and the third side wall (323) also gradually decreases from bottom to top. The upper part (32) and the lower part (33) are symmetrically arranged with the top surface of the lower mold (2) as the reference plane.

3. The valve body mold that is easy to demold according to claim 1, characterized in that: The positioning member (34) is a positioning block, and the positioning member (34) is integrally formed on the bottom wall of the lower portion (33). The lower mold (2) is provided with a positioning groove (21) at a position corresponding to the positioning member (34), and the positioning member (34) is plugged into the positioning groove (21).

4. The valve body mold that is easy to demold according to claim 1, characterized in that: The demoulding assembly (5) comprises a lifting plate (51), a fixed plate (52), a stopper (53) and a push rod (54); the lifting plate (51) is connected to the fixed plate (52); a plurality of push rods (54) are connected between the lifting plate (51) and the fixed plate (52); the push rods (54) pass through the fixed plate (52) and the lower mold (2) and are slidably matched with the lower mold (2); a plurality of stoppers (53) are connected to the lower mold (2); and the lifting plate (51) is located between the lower mold (2) and the stopper (53).

5. The valve body mold that is easy to demold according to claim 1, characterized in that: At least two groups of guide assemblies (6) are arranged between the upper mold (1) and the lower mold (2), and the guide assembly (6) comprises an upper cylinder (61) and a guide column (62). The upper cylinder (61) is detachably connected to the upper mold (1), and the guide column (62) is detachably connected to the lower mold (2) at a position corresponding to the upper cylinder (61). A guide groove (611) is provided at the bottom end of the upper cylinder (61), and a guide cone surface (621) is provided at the top end of the guide column (62). The top end of the guide column (62) is plugged into the guide groove (611).

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