Self-adaptive positioning forming die for olive-shaped materials

Abstract

The utility model discloses a self-adaptive positioning forming die for olive type materials, which relates to the technical field of extrusion forming and comprises an upper die and a lower die, the lower die is provided with an inclined lower die forming surface, the lower end of the lower die is provided with a fence structure, the upper die is provided with a corresponding inclined upper die forming surface, and a forming cavity is formed during die assembly. According to the utility model, the inclined structure is utilized to enable the material to automatically slide to the fence under the action of gravity to realize positioning, manual adjustment is not needed, the problems of low yield and low efficiency caused by inaccurate positioning in the prior art are effectively solved, and the positioning groove is further formed in the end part of the fence, so that different placement orientations of'large and small ends' of the material can be self-adapted; when the small head faces downwards, the small head is embedded into the groove for positioning, and when the large head faces downwards, the end face stops positioning. The automatic correcting device can automatically correct material postures, ensures the forming quality of complex curved surfaces (such as S-shaped surfaces), and remarkably improves the production automation level and the product consistency.

Description

Technical Field

[0001] This utility model relates to the field of extrusion molding technology, specifically to an adaptive positioning molding die for olive-shaped materials. Background Technology

[0002] In the processing of agricultural products and food, it is often necessary to shape materials with naturally irregular shapes to give them a uniform or specific shape (such as an S-shape) final product appearance, thereby improving the product's aesthetics and added value. Existing conventional extrusion molding dies typically include horizontally arranged upper and lower dies, with the cavity shape being the negative shape of the target product.

[0003] However, in actual production, the aforementioned conventional molds have significant drawbacks when handling materials that are approximately olive-shaped. Firstly, because the material itself is ellipsoidal, there is a lack of effective automatic positioning reference when placing it into the horizontally placed lower mold cavity. Operators need to manually adjust the position and orientation of the material to ensure it is centered in the cavity, which not only increases operation time and reduces production efficiency but also makes it difficult to guarantee consistent placement each time. Secondly, if the material is not placed correctly, uneven force during mold closing can easily lead to asymmetrical product shape, or even material crushing, severely affecting product yield and quality consistency.

[0004] In particular, when the molding target is a complex curved surface (such as an S-shape), the non-planar molding surface interacts with the olive-shaped material with dimensional tolerances. The olive-shaped material is difficult to position accurately, making it difficult to predict and control the initial contact state and stress posture of the material in the lower mold. This uncertain initial contact state means that the contact point and stress state with the material cannot be repeated each time the upper mold presses down, resulting in poor product consistency. When the material is not placed in the preset centered position due to positioning deviation, the ends are prone to breakage due to excessive compression during mold closing. Inaccurate positioning also makes it impossible to control the depth of the material in the cavity. For larger materials, excessive compression may cause cracking; for smaller materials, insufficient compression prevents effective reshaping of internal stress, leading to elastic recovery after mold opening. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides an adaptive positioning molding die for olive-shaped materials. By utilizing the material's own gravity, the die automatically and accurately positions and corrects the posture of the olive-shaped material before mold closing, effectively solving the problems of low efficiency, inaccurate positioning, and poor product consistency caused by manual placement.

[0006] The technical solution adopted by this utility model is as follows: an adaptive positioning and forming mold for olive-shaped materials, including a lower mold and an upper mold, characterized in that: the lower mold is provided with a lower mold forming surface for accommodating materials, the lower mold forming surface is inclined relative to the horizontal plane, and its lower end is provided with a retaining structure for limiting one end of the material, so that the olive-shaped material placed on it automatically slides along the inclined surface under its own gravity, and one end of it abuts against the retaining structure, thereby realizing the automatic positioning and adaptive posture of the material before mold closing; the upper mold is provided with an upper mold forming surface that is inclined corresponding to the lower mold forming surface; when the upper mold and the lower mold are closed, the upper mold forming surface and the lower mold forming surface together form a forming cavity that matches the shape of the olive-shaped material.

[0007] Furthermore, the enclosure structure is jointly formed by the bottom end face of the lower mold forming surface and the two side faces connected to the bottom end face.

[0008] Furthermore, the two sides of the enclosure structure are arranged in a V-shape or U-shape relative to the inclined direction of the lower mold forming surface.

[0009] Furthermore, the outer contour of the lower end of the upper mold is adapted to the inner cavity contour of the enclosure structure, and when the mold is closed, the lower end of the upper mold is inserted into the enclosure structure.

[0010] Furthermore, the inner wall of the enclosure structure is configured as a guide slope inclined relative to the mold closing direction, which is used to guide the lower end of the upper mold into the enclosure structure when the mold is closed.

[0011] Furthermore, a positioning groove for accommodating the smaller end of the material is provided on the end face of the enclosure structure; the size of the positioning groove is configured such that when the smaller end of the material is placed downwards, its small end can be embedded in the positioning groove to achieve positioning; when the larger end of the material is placed downwards, its large end is blocked by the end face of the enclosure structure to achieve positioning, thereby achieving adaptive positioning for different placement orientations of the material.

[0012] Furthermore, the molding cavity, which is formed by the upper mold forming surface and the lower mold forming surface, has an S-shaped projection profile on a plane perpendicular to the mold closing direction, and is used to extrude olive-shaped materials into products with S-shaped side profiles.

[0013] Furthermore, the surfaces of the upper mold forming surface and / or the lower mold forming surface are provided with concave and convex textures to form corresponding patterns on the surface of the material after molding.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) This utility model realizes fully automatic positioning and attitude self-adaptation based on gravity. Since the lower mold forming surface is inclined, after the olive-shaped material is put in, it can automatically slide towards and stably abut against the low-level enclosure structure under its own gravity. This process does not require manual intervention and can automatically complete the axial positioning and attitude correction of the material, laying the foundation for continuous and large-scale production.

[0016] (2) This utility model provides a stable and reliable mold closing benchmark. Based on the above adaptive positioning, the mold closing depth can be effectively controlled, effectively avoiding quality defects caused by inaccurate positioning and material size tolerance, and enhancing process stability and adaptability to material size fluctuations.

[0017] (3) For S-shaped and other complex curved surface forming, the mold cavity itself is an asymmetrical complex curved surface. The automatic and precise positioning capability provided ensures that the material is always in the same position in the complex cavity, which provides a key guarantee for the high-quality forming of complex shapes (such as S-shaped products).

[0018] (4) By setting positioning grooves on the enclosure structure, the mold can adapt to different material placement methods. Regardless of whether the material is placed with the "small end down" or "large end down", the mold can achieve effective and accurate positioning through two different mechanisms: "groove embedding" or "end face blocking", ensuring the consistency of product quality under different placement methods.

[0019] (5) The insertion and connection between the lower end of the upper mold and the enclosure structure further ensures the mold closing accuracy and avoids surface distortion or texture blurring caused by misalignment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model.

[0021] Figure 2 This is a schematic diagram of the lower mold of Embodiment 1 of this utility model.

[0022] Figure 3 This is a top view of the lower mold of Embodiment 1 of this utility model.

[0023] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of AA.

[0024] Figure 5 This is a three-dimensional structural diagram of the upper mold of Embodiment 1 of this utility model.

[0025] Figure 6 This is a side view of the upper mold structure of Embodiment 1 of this utility model.

[0026] Figure 7This is a schematic diagram of the lower mold structure of Embodiment 2 of this utility model.

[0027] Figure 8 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model.

[0028] In the figure: lower mold 1, lower mold forming surface 101, enclosure structure 102, guide slope 103, positioning groove 104, upper mold 2, upper mold forming surface 201. Detailed Implementation

[0029] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0030] Example 1

[0031] like Figures 1-6 As shown, this embodiment discloses an olive-shaped material adaptive positioning forming mold, including an upper mold 2 and a lower mold 1 that cooperate with each other. The upper surface of the lower mold 1 is provided with a lower mold forming surface 101 for accommodating the material. The lower mold forming surface 101 is constructed to be inclined at an angle relative to the horizontal plane. At its inclined lower end, a retaining structure 102 is provided. In this embodiment, the retaining structure 102 is composed of an end face located at the lower end and two side faces respectively connected to both sides of the end face. Preferably, the two side faces converge toward the end face along the inclined direction of the lower mold forming surface 101 to form a V-shaped or U-shaped enclosing space.

[0032] The lower surface of the upper mold 2 is provided with an upper mold forming surface 201, the inclination angle of which corresponds to that of the lower mold forming surface 101. The upper mold 2 corresponds to one end of the lower mold 1 enclosure structure 102, and its outer contour is constructed to fit the inner cavity contour of the enclosure structure 102. During the mold closing process, this end of the upper mold 2 can be smoothly inserted into the enclosure structure 102, realizing mold closing guidance and precise sealing of the cavity.

[0033] To further optimize the mold closing guiding performance, the inner wall of the enclosure structure 102 can be configured as a guide slope 103 inclined relative to the mold closing direction. This guide slope 103 can contact the upper mold 2 and guide it to accurate alignment.

[0034] The upper mold forming surface 201 and the lower mold forming surface 101 together define the shape of the forming cavity. In this embodiment, the projected contour of the forming cavity on a plane perpendicular to the mold closing direction is constructed as an S-shape, so that olive-shaped materials can be extruded and molded into products with corresponding S-shaped side contours.

[0035] In addition, to create decorative or functional textures on the product surface, the desired raised or recessed textures can be machined on the surfaces of the upper mold forming surface 201 and / or the lower mold forming surface 101.

[0036] The working principle of this utility model is as follows: An olive-shaped material is placed on the inclined lower mold forming surface 101. The material slides down automatically under the action of gravity, and its bottom end is blocked and positioned by the enclosure structure 102. Then, the upper mold 2 is driven to press down. The upper mold forming surface 201 and the lower mold forming surface 101 work together to extrude the material into a preset S-shaped contour product and form the desired texture on its surface.

[0037] Example 2

[0038] like Figure 7 , Figure 8 As shown, this embodiment, based on embodiment 1, further optimizes the process for olive-shaped materials with "uneven ends" (i.e., one end has a significantly larger diameter than the other), enabling the mold to adapt to the material's orientation. A positioning groove 104 is provided on the end face of the enclosure structure 102. The shape and size of this positioning groove 104 are designed to match the contour of the smaller end (smaller end) of the material. The adaptive positioning process is as follows:

[0039] When the smaller end is placed downwards, the smaller end of the material will naturally embed itself into the positioning groove 104 under the action of gravity. This not only achieves axial positioning but also provides radial centering guidance, resulting in a precise positioning effect. When the larger end is placed downwards, the larger end of the material, when sliding to the enclosure structure 102, cannot embed itself into the groove because its size is larger than the opening of the positioning groove 104. Instead, it is stably blocked on the end face of the enclosure structure 102, thus achieving another effective axial positioning.

[0040] This embodiment, through the coordinated design of the positioning groove 104 and the end face block, enables the mold to adapt to the actual placement orientation of the material without manual adjustment, ensuring the consistency of product quality under different placement methods.

[0041] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An adaptive positioning forming mold for olive-shaped materials, comprising a lower mold (1) and an upper mold (2), characterized in that: The lower mold (1) is provided with a lower mold forming surface (101) for accommodating materials. The lower mold forming surface (101) is inclined relative to the horizontal plane, and its lower end is provided with a baffle structure (102) for limiting one end of the material, so that the olive-shaped material placed on it can automatically slide along the inclined surface under its own gravity and let one end of it abut against the baffle structure (102), thereby realizing the automatic positioning and posture self-adaptation of the material before mold closing; the upper mold (2) is provided with an upper mold forming surface (201) that is inclined corresponding to the lower mold forming surface (101); when the upper mold (2) and the lower mold (1) are closed, the upper mold forming surface (201) and the lower mold forming surface (101) together form a forming cavity that matches the shape of the olive-shaped material.

2. The olive-shaped material adaptive positioning forming mold as described in claim 1, characterized in that: The enclosure structure (102) is composed of the end face of the bottom of the lower mold forming surface (101) and the two side faces connected to the end face.

3. The olive-shaped material adaptive positioning forming mold as described in claim 2, characterized in that: The two sides of the enclosure structure (102) are arranged in a V-shape or U-shape relative to the inclined direction of the lower mold forming surface (101).

4. The adaptive positioning forming mold for olive-shaped materials as described in any one of claims 1-3, characterized in that: The outer contour of the lower end of the upper mold (2) is adapted to the inner cavity contour of the enclosure structure (102). When the mold is closed, the lower end of the upper mold (2) is inserted into the enclosure structure (102).

5. The olive-shaped material adaptive positioning forming mold as described in claim 4, characterized in that: The inner wall of the enclosure structure (102) is configured as a guide slope (103) inclined relative to the mold closing direction, which is used to guide the lower end of the upper mold (2) into the enclosure structure (102) when the mold is closed.

6. The olive-shaped material adaptive positioning forming mold as described in claim 4, characterized in that: On the end face of the enclosure structure (102), a positioning groove (104) is provided for accommodating the smaller end of the material; the size of the positioning groove (104) is configured such that when the smaller end of the material is placed downwards, its small end can be embedded in the positioning groove (104) to achieve positioning; when the larger end of the material is placed downwards, its large end is blocked by the end face of the enclosure structure (102) to achieve positioning, thereby achieving adaptive positioning for different placement orientations of the material.

7. The olive-shaped material adaptive positioning forming mold as described in claim 1, characterized in that: The molding cavity, which is formed by the upper mold forming surface (201) and the lower mold forming surface (101), has an S-shaped projection profile on a plane perpendicular to the mold closing direction, and is used to extrude olive-shaped materials into products with S-shaped side profiles.

8. The olive-shaped material adaptive positioning forming mold as described in claim 1, characterized in that: The upper mold forming surface (201) and / or the lower mold forming surface (101) are provided with concave and convex textures to form corresponding patterns on the surface of the material after molding.

Images