Die with production size convenient to replace

Abstract

The utility model discloses a mold convenient for changing production size, which comprises a bottom plate, a first mold core is arranged on the bottom plate in a protruding manner, and second mold cores are arranged on two symmetrical sides of the first mold core along a first direction; the number of the positioning plates is two, the two positioning plates are symmetrically arranged on the two sides of the first mold core in the first direction, and the two positioning plates are matched to clamp the two second mold cores on the first mold core; the number of the positioning blocks is two, and the two positioning blocks are arranged on the two sides of the first mold core in the second direction and abut against the first mold core; the locking assembly is used for locking the positioning plate; wherein the two positioning plates, the two positioning blocks and the first mold core are matched to form a mold cavity. The mold cavity is filled with molding sand to obtain a workpiece, the second mold core and the positioning block can be detached by loosening the locking assembly and then detaching the positioning plate, the size of the mold cavity is changed by replacing the second mold core and the positioning block with different sizes, the cover mold can produce workpieces with different thicknesses, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold with replaceable production size. Background Art

[0002] The butterfly valve used in buried water pipes is large in size, and the thickness of the butterfly valve flange will vary according to actual needs. Therefore, multiple sets of molds need to be prepared during production, but this will increase production costs. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a mold with replaceable production size, and a set of molds can be used to produce molds of multiple different specifications, thereby reducing production costs.

[0004] A mold for conveniently changing production sizes according to the first embodiment of the utility model includes: a bottom plate, on which a first core is protruding, and second cores are symmetrically arranged on both sides of the first core along a first direction; two positioning plates are provided, and the two positioning plates are symmetrically arranged on both sides of the first core along the first direction, and the two positioning plates cooperate to clamp the two second cores on the first core; two positioning blocks are provided, and the two positioning blocks are arranged on both sides of the first core along the second direction and are both in contact with the first core; a locking assembly locks the positioning plate; wherein the two positioning plates, the two positioning blocks and the first core cooperate to form a cavity.

[0005] The convenient replacement of the mold for production size according to the embodiment of the utility model has at least the following beneficial effects: by filling the mold sand into the mold cavity to obtain a workpiece, by loosening the locking assembly and then removing the positioning plate, the second core and the positioning block can be removed, and by replacing the second core and positioning blocks of different sizes, the size of the mold cavity is changed, so that the cover mold can produce workpieces of different thicknesses, thereby reducing production costs.

[0006] According to some embodiments of the utility model, the locking assembly includes a locking rod and two locking blocks. The locking rod passes through two positioning plates simultaneously along the first direction. The two locking blocks are respectively arranged at two ends of the locking rod and are threadedly connected to the locking rod. The two locking blocks cooperate to clamp the two positioning plates.

[0007] According to some embodiments of the present utility model, the positioning plate is provided with an opening groove, the opening groove matches the locking rod, the opening groove opens along a second direction, and the second direction is perpendicular to the first direction.

[0008] According to some embodiments of the present utility model, the positioning plate comprises a positioning plate and a supporting frame, the positioning plate is arranged on the supporting frame, and the opening groove is provided on the supporting frame.

[0009] According to some embodiments of the present utility model, the support frame is provided with a reinforcing rod, and the reinforcing rod is connected to the positioning plate.

[0010] According to some embodiments of the present invention, a gasket is provided between the locking block and the positioning plate, and the locking block drives the gasket to be tightly attached to the positioning plate.

[0011] According to some embodiments of the present utility model, the positioning block is provided with a first positioning portion and a second positioning portion, the first positioning portion and the second positioning portion cooperate to form a locking position, and the locking position matches the first core.

[0012] According to some embodiments of the present invention, the bottom plate, the second core, the positioning plate and the positioning block are all wooden workpieces.

[0013] According to some embodiments of the present invention, the first core is a metal part.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 A schematic diagram of a mold with replaceable production size according to an embodiment of the utility model;

[0017] Figure 2 A cross-sectional view of a mold with replaceable production size according to an embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of a locking assembly in a replaceable production size according to an embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of a support frame in a replaceable production size according to an embodiment of the utility model.

[0020] Description of reference numerals:

[0021] Base plate 100, first core 110, second core 120, cavity 130;

[0022] Positioning plate 210, opening slot 211, supporting frame 212, reinforcing plate 213, positioning plate 214, positioning block 220, first positioning portion 221, second positioning portion 222;

[0023] Lock rod 310 , lock block 320 , and gasket 330 . DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] Reference Figures 1 to 3The mold for conveniently changing production size of the first embodiment of the utility model includes: a bottom plate 100, on which a first core 110 is protrudingly provided, and second cores 120 are provided on both sides of the first core 110 symmetrically along the first direction; a positioning plate 210, which includes two pieces, and the two positioning plates 210 are symmetrically arranged on both sides of the first core 110 along the first direction, and the two positioning plates 210 cooperate to clamp the two second cores 120 on the first core 110; a positioning block 220, which includes two pieces, and the two positioning blocks 220 are arranged on both sides of the first core 110 along the second direction, and both abut against the first core 110; a locking assembly, which locks the positioning plate 210; wherein the two positioning plates 210, the two positioning blocks 220 and the first core 110 cooperate to form a cavity 130.

[0029] The workpiece is obtained by filling the cavity 130 with molding sand, and the second core 120 and the positioning block 220 can be removed by loosening the locking assembly and then removing the positioning plate 210. By replacing the second core 120 and the positioning block 220 of different sizes and changing the size of the cavity 130, the cover mold can produce workpieces of different thicknesses, thereby reducing production costs.

[0030] It is understandable that, referring to Figure 1 and Figure 3 The locking assembly includes a locking rod 310 and two locking blocks 320. The locking rod 310 passes through the two positioning plates 210 simultaneously along the first direction. The two locking blocks 320 are respectively arranged at both ends of the locking rod 310 and are threadedly connected with the locking rod 310. The two locking blocks 320 cooperate to clamp the two positioning plates 210. By rotating the locking blocks 320, the two locking blocks 320 move toward each other, so that the two locking blocks 320 clamp the positioning plates 210. It should be noted that the locking assembly can be provided with multiple groups. By providing multiple groups of locking assemblies and evenly distributing the locking assemblies, the force of the positioning plates 210 is balanced.

[0031] It is understandable that, referring to Figure 1 and Figure 3 The positioning plate 210 is provided with an opening slot 211, which matches the locking rod 310. The opening slot 211 is opened along the second direction, and the second direction is perpendicular to the first direction. After the locking block 320 is released, the locking rod 310 can be directly pulled out through the opening slot 211, which is convenient and quick, and improves the replacement efficiency of the second core 120 and the positioning block 220.

[0032] It is understandable that, referring to Figure 4The positioning plate 210 includes a positioning plate 214 and a support frame 212. The positioning plate 214 is arranged on the support frame 212, and the opening groove 211 is opened on the support frame 212. By arranging the positioning plate 214 on the support frame 212, the strength of the positioning plate 214 is enhanced, and the positioning plate 214 is prevented from being deformed when filling the molding sand, so that the workpiece is formed stably.

[0033] It is also understandable that, with reference to Figure 4 The support frame 212 is provided with a reinforcing rod 213, and the reinforcing rod 213 is arranged on the outside of the cavity 130. The reinforcing rod 213 is connected to the positioning plate 214. The strength of the positioning plate 214 is further improved through the reinforcing rod 213 and the positioning plate 214.

[0034] It is understandable that, referring to Figure 3 A gasket 330 is provided between the locking block 320 and the positioning plate 210, and the locking block 320 drives the gasket 330 to be close to the positioning plate 210. By providing the gasket 330 between the locking block 320 and the positioning plate 214, the locking block 320 contacts the positioning plate 214 through the gasket 330, thereby reducing the pressure of the locking block 320 on the positioning plate 214, preventing the locking block 320 from damaging the positioning plate 214, and improving the service life of the positioning plate 214.

[0035] It is understandable that, referring to Figure 1 and Figure 2 The positioning block 220 is provided with a first positioning portion 221 and a second positioning portion 222, and the first positioning portion 221 and the second positioning portion 222 cooperate to form a snap-in position, which matches the first core 110. The first positioning portion 221 extends in the vertical direction, and the second positioning portion 222 extends in the horizontal direction. The first positioning portion 221 and the second positioning portion 222 are both in contact with the first core 110, and the first core 110 is docked with the snap-in position, so as to realize the positioning of the positioning block 220 and improve the assembly efficiency.

[0036] It is understandable that the bottom plate 100, the second core 120, the positioning plate 210 and the positioning block 220 are all wooden workpieces, which are easy to process and maintain, and reduce production costs. In addition, the first core 110 is a metal part, which improves the stability of workpiece molding.

[0037] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. It is convenient to change the mold of production size, characterized by: include: A bottom plate is protrudingly provided with a first core, and along a first direction, second cores are provided on both sides symmetrically of the first core; There are two positioning plates, the two positioning plates are symmetrically arranged on both sides of the first core along the first direction, and the two positioning plates cooperate to clamp the two second cores on the first core; Two positioning blocks are provided, and the two positioning blocks are provided on both sides of the first core along the second direction and are both in contact with the first core; A locking assembly, locking the positioning plate; The two positioning plates, the two positioning blocks and the first core cooperate to form a cavity.

2. The mold for conveniently changing production size according to claim 1 is characterized in that: The locking assembly includes a locking rod and two locking blocks. The locking rod passes through two positioning plates simultaneously along the first direction. The two locking blocks are respectively arranged at two ends of the locking rod and are threadedly connected to the locking rod. The two locking blocks cooperate to clamp the two positioning plates.

3. The mold for conveniently changing production size according to claim 2 is characterized in that: The positioning plate is provided with an opening groove, the opening groove matches the locking rod, and the opening groove opens along a second direction, and the second direction is perpendicular to the first direction.

4. The mold for conveniently changing production size according to claim 3 is characterized in that: The positioning plate component includes a positioning plate and a supporting frame. The positioning plate is arranged on the supporting frame, and the opening groove is arranged on the supporting frame.

5. The mold for conveniently changing production size according to claim 4 is characterized in that: The support frame is provided with a reinforcing rod, and the reinforcing rod is connected to the positioning plate.

6. The mold for conveniently changing production size according to claim 2, characterized in that: A gasket is arranged between the locking block and the positioning plate, and the locking block drives the gasket to be close to the positioning plate.

7. The mold for conveniently changing production size according to claim 1, characterized in that: The positioning block is provided with a first positioning portion and a second positioning portion, the first positioning portion and the second positioning portion cooperate to form a locking position, and the locking position matches the first core.

8. The mold for conveniently changing production size according to claim 1, characterized in that: The bottom plate, the second core, the positioning plate and the positioning block are all wooden workpieces.

9. The mold for conveniently changing production size according to claim 1, characterized in that: The first core is a metal part.

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