Tiger mouth positioning structure of fixed die and movable die of die

Abstract

The invention belongs to the field of molds, and particularly relates to a jaw positioning structure of a fixed mold and a movable mold of a mold, which comprises a fixed mold and a movable mold, the fixed mold is matched with the movable mold, the fixed mold and the movable mold are symmetrically distributed, the fixed mold is provided with an integral jaw bulge, the movable mold is provided with four symmetrically distributed jaw grooves, and the jaw grooves are matched with the jaw bulge; compared with a common die, the jaw grooves and the jaw protrusions are arranged at the four corners of the die for positioning. According to the scheme, the jaw and the jaw protrusion of a common mold are improved, the jaw groove and the jaw protrusion are arranged on the movable mold and the fixed mold respectively and distributed on the x-axis and the y-axis respectively, the jaw groove and the jaw protrusion are in close fit, and a gap is reserved in the z-axis direction. When a fixed die and a movable die of the die are heated inconsistently, due to the fact that the distance between first web openings of a common die is long, the first web openings are either invalid or the die is not tightly closed. The scheme is less affected by thermal expansion and cold contraction and can be neglected, so that accurate positioning is realized.

Description

Technical Field

[0001] The invention relates to the field of moulds, in particular to a jaw positioning structure of a fixed mould and a movable mould. Background Art

[0002] The existing jaws and protrusions are arranged on the four corners of the mold. However, in special production environments, especially when the mold is closed, the temperature difference between the front and rear jaws and the jaws protrusions is large, and the expansion coefficients of the jaws protrusions are different, which may cause the jaws to bite or the positioning to be inaccurate.

[0003] Therefore, it is necessary to propose a jaw positioning structure for the fixed mold and the movable mold to address the above problems. Summary of the invention

[0004] In order to make up for the shortcomings of the existing technology, in a special production environment, the temperature difference between the front and rear jaws protrusions is large, and the expansion coefficients of the jaws protrusions are different, which may cause the jaws to be stuck or the positioning is not accurate enough. The present invention proposes a jaw positioning structure for the fixed mold and the movable mold.

[0005] The technical solution adopted by the present invention to solve the technical problem is: the jaw positioning structure of the fixed mold and the movable mold comprises a movable mold; a fixed mold is installed above the movable mold, and the fixed mold is adapted to the movable mold;

[0006] A plurality of jaw grooves are arranged on the symmetry axis of the movable mold, and a plurality of jaw protrusions are arranged on the symmetry axis of the fixed mold, and the jaw grooves are matched with the jaw protrusions.

[0007] Preferably, the fixed mold includes a fixed mold core, and the movable mold includes a movable mold core. When the molds are closed, the fixed mold core and the movable mold core abut against each other.

[0008] Preferably, on the x-axis, two side surfaces of the jaw groove along the y-axis direction are jaw groove positioning surfaces, and two side surfaces of the jaw protrusion along the y-axis direction are jaw groove positioning surfaces. When the mold is closed, the jaw groove positioning surfaces abut against the jaw positioning surfaces.

[0009] On the y-axis, the two side surfaces of the jaw groove along the x-axis direction are the jaw groove positioning surfaces, and the two side surfaces of the jaw protrusion along the x-axis direction are the jaw groove positioning surfaces. When the mold is closed, the jaw groove positioning surfaces abut against the jaw mouth positioning surfaces.

[0010] Preferably, when the mold is closed, a gap is left between the bottom surface of the jaw groove and the bottom surface of the jaw protrusion.

[0011] The present invention is beneficial in that:

[0012] 1. The present invention designs the jaw protrusion and the jaw groove on the symmetry axis, and utilizes the side positioning when closing the mold. Firstly, it not only realizes the function of clamping positioning; secondly, since the expansion and contraction on the symmetry axis have the lowest influence, it solves the problem that the jaw protrusion is stuck with the jaw groove or the positioning is inaccurate after thermal expansion, and improves the accuracy of later positioning;

[0013] 2. The present invention solves the problem of jamming by designing the thumb protrusion and the thumb groove on the symmetry axis and directly leaving a gap between the bottom surfaces of each other when the mold is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the improved overall three-dimensional structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the improved split three-dimensional structure of the present invention;

[0017] Figure 3 It is a schematic diagram of the improved top view structure of the present invention;

[0018] Figure 4 It is a schematic diagram of the improved side structure of the present invention;

[0019] Figure 5 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at point A-A in the middle.

[0020] In the figure: 1, movable mold; 2, fixed mold; 3, tiger's mouth groove; 4, tiger's mouth protrusion; 101, fixed mold core; 201, movable mold core; 301, tiger's groove positioning surface; 401, tiger's mouth positioning surface. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The following is combined with Figure 1-Figure 5 To further explain this application in detail,

[0023] The present application embodiment discloses a jaw positioning structure for a fixed mold and a movable mold. Figure 1-Figure 5 The jaw positioning structure of the fixed mold and the movable mold of the mold includes a movable mold 1; a fixed mold 2 is installed above the movable mold 1, and the fixed mold 2 is adapted to the movable mold 1, and the fixed mold 2 is symmetrically distributed with the movable mold 1. A plurality of jaw grooves 3 are provided on the symmetry axis of the movable mold 1, and a plurality of jaw protrusions 4 are provided on the symmetry axis of the fixed mold 2, and the jaw grooves 3 are adapted to the jaw protrusions 4.

[0024] The movable mold 1 includes a fixed mold core 101 , and the fixed mold 2 includes a movable mold core 201 . When the molds are closed, the fixed mold core 101 and the movable mold core 201 abut against each other.

[0025] The symmetry axes are the x-axis and the y-axis. After the mold is closed along the z-axis, the entire exterior of the model is symmetrically distributed along the x-axis and the y-axis. On the x-axis, the two side surfaces of the jaw groove 3 along the y-axis are the jaw groove positioning surfaces 301, and the two side surfaces of the jaw protrusion 4 along the y-axis are the jaw groove positioning surfaces 401. When the mold is closed, the jaw groove positioning surfaces 301 abut against the jaw groove positioning surfaces 401. At this time, the positioning in the y-axis direction is completed, that is, the positioning block is prevented from moving along the y-axis direction.

[0026] On the y-axis, the two side surfaces of the jaw groove 3 along the x-axis direction are the jaw groove positioning surfaces 301, and the two side surfaces of the jaw protrusion 4 along the x-axis direction are the jaw groove positioning surfaces 401. When the mold is closed, the jaw groove positioning surfaces 301 abut against the jaw groove positioning surfaces 401. At this time, the positioning in the x-axis direction is completed, that is, the positioning block is prevented from moving along the x-axis direction.

[0027] When closing the mold, positioning is performed through the side of the jaw groove 3 and the side of the jaw protrusion 4. Compared with the common method of setting the jaws and jaw protrusions on the four corners of the mold, this solution places the jaw groove 3 and the jaw protrusion 4 on the symmetry axis, so that the deformation caused by thermal expansion and contraction is less affected or even eliminated, and accurate positioning can be performed in a variety of environments, especially when there is a large temperature difference between the fixed mold 2 and the movable mold 1, the thermal expansion and contraction are less affected.

[0028] On the other hand, when the mold is closed, a gap is left between the bottom surface of the jaw groove 3 and the bottom surface of the jaw protrusion 4. That is, the bottom surface of the jaw groove 3 and the bottom surface of the jaw protrusion 4 do not abut against each other, and a sufficient gap is left. When heated, the jaw protrusion 4 will not abut against the jaw groove 3 even if it expands, so as to prevent the jaw protrusion 4 from expanding due to heat and biting the jaw groove 3.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. The jaw positioning structure of the fixed mold and the movable mold is characterized by: It comprises a movable mold (1); a fixed mold (2) is installed above the movable mold (1), and the fixed mold (2) is adapted to the movable mold (1); A plurality of jaw grooves (3) are provided on the symmetry axis of the movable mold (1), and a plurality of jaw protrusions (4) are provided on the symmetry axis of the fixed mold (2), wherein the jaw grooves (3) are matched with the jaw protrusions (4).

2. The jaw positioning structure of the fixed mold and the movable mold according to claim 1 is characterized in that: The fixed mold (2) comprises a fixed mold core (101), and the movable mold (1) comprises a movable mold core (201). When the molds are closed, the fixed mold core (101) and the movable mold core (201) abut against each other.

3. The jaw positioning structure of the fixed mold and the movable mold according to claim 1 is characterized in that: On the x-axis, two side surfaces of the jaw groove (3) along the y-axis direction are jaw groove positioning surfaces (301), and two side surfaces of the jaw protrusion (4) along the y-axis direction are jaw groove positioning surfaces (401). When the mold is closed, the jaw groove positioning surfaces (301) abut against the jaw positioning surfaces (401); On the y-axis, the two side surfaces of the jaw groove (3) along the x-axis direction are jaw groove positioning surfaces (301), and the two side surfaces of the jaw protrusion (4) along the x-axis direction are jaw groove positioning surfaces (401). When the mold is closed, the jaw groove positioning surfaces (301) abut against the jaw positioning surfaces (401).

4. The jaw positioning structure of the fixed mold and the movable mold according to claim 3 is characterized in that: When the mold is closed, a gap is left between the bottom surface of the jaw groove (3) and the bottom surface of the jaw protrusion (4).

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