A self-locking die structure

Abstract

The utility model discloses a kind of self-locking die structure, it belongs to mould fittings field, including the fixed installation part and the movable installation part of opposite arrangement, the fixed installation part is opened with locking hole to movable installation part side, the hole rim side of locking hole is provided with the limiting portion extending to inboard, movable installation part is provided with vertical column to the side of fixed installation part, the end of vertical column is fixedly provided with expansion section, the outer diameter of expansion section is greater than the outer diameter of vertical column;And the outer diameter of expansion section is greater than the aperture of locking hole at limiting portion, and less than the aperture of other parts of locking hole.The utility model aims at providing a kind of self-locking die structure, can improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mold accessories, specifically a self-locking mold structure. Background Technology

[0002] In the food processing industry, materials undergo filling, mold closing, and other processes to be pressed and shaped within a mold cavity. To ensure the product's full shape and dimensional stability, pressure holding is required after pressing. Currently, this pressure holding process typically relies on the pressing equipment continuously applying force to the mold. This results in the mold occupying the pressing equipment for an extended period during the pressure holding stage, hindering the execution of other production processes and ultimately reducing the overall production line efficiency. Utility Model Content

[0003] The purpose of this invention is to address the above problems by providing a self-locking mold structure that can improve production efficiency.

[0004] To achieve the above objectives, the present invention employs a self-locking mold structure, comprising a fixed mounting part and a movable mounting part arranged opposite to each other. The fixed mounting part has a locking hole on the side facing the movable mounting part, and a limiting part extending inward is provided on one side of the locking hole's edge. The movable mounting part has a vertical column on the side facing the fixed mounting part, and an expansion part is fixedly provided at the end of the vertical column. The outer diameter of the expansion part is larger than the outer diameter of the vertical column; and the outer diameter of the expansion part is larger than the diameter of the locking hole at the limiting part, but smaller than the diameter of other parts of the locking hole. During mold closing, the expansion part extends into the locking hole, and then, through the lateral movement of the movable mounting part, the expansion part at least partially overlaps with the limiting part in the mold closing direction, forming a mutual interlocking engagement. This securely locks the moving mold and the fixed mold into a single unit in the mold closing direction, allowing the moving mold and the fixed mold to become an independent pressure-holding unit after mold closing, eliminating the need for continuous mold closing force from external pressing equipment.

[0005] Furthermore, the installation method of the fixed mounting part and the movable mounting part is such that when the fixed mounting part is fixedly mounted on the moving mold, the movable mounting part is slidably mounted on the fixed mold in the lateral direction; when the fixed mounting part is fixedly mounted on the fixed mold, the movable mounting part is slidably mounted on the moving mold in the lateral direction. The sliding direction of the movable mounting part is different from the mold closing direction, so as to achieve locking of the moving mold and the fixed mold.

[0006] Furthermore, in order to drive the movable mounting part to move, the movable mounting part is fixedly mounted on the pull bar, and the pull bar is laterally slidably mounted on the moving mold or fixed mold where the movable mounting part is located, so that the movable mounting part can be driven to slide relative to the moving mold or fixed mold through the pull bar.

[0007] Furthermore, at least one end of the pull bar extends out of the moving or fixed mold and is fixedly connected to the pull-out part. This allows the pull bar to move by driving the pull-out part, eliminating the need for the drive component to be embedded in the mold. This facilitates maintenance of the drive component, simplifies the mold structure, and improves applicability.

[0008] Furthermore, a sliding groove is provided on the back of the moving mold or the fixed mold, and the pull bar is slidably disposed within the sliding groove. The sliding groove provides a precise guide trajectory for the lateral sliding of the pull bar.

[0009] Furthermore, the back of the moving or fixed mold is enclosed by a removable base plate, which facilitates the installation and maintenance of the tie rod.

[0010] The beneficial effects of this invention are as follows: During mold closing, the expansion part enters the locking hole, at which point the expansion part and the limiting part are misaligned in the mold closing direction. After mold closing, through lateral movement, the expansion part at least partially overlaps with the limiting part in the mold closing direction, forming a snap-fit ​​engagement, thereby achieving a firm locking between the moving mold and the fixed mold. This allows the mold itself to form an independent pressure-holding unit after mold closing, eliminating the need for continuous mold closing force from the pressing equipment. Therefore, the pressing equipment can be freed up during the pressure-holding period to perform other pressing tasks in parallel, which not only optimizes equipment utilization but also significantly shortens the production cycle and improves the overall production line efficiency. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0012] Figure 2 This is a side view of the structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the structure of the present invention in the locked state.

[0014] Figure 4 This is a schematic diagram of the installation structure for the activity installation unit.

[0015] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0016] Figure 6 This is a schematic diagram of the installation structure for the fixed mounting part.

[0017] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point B in the middle.

[0018] Figure 8 This is a schematic diagram of the structure for the movable mounting part and the tie rod.

[0019] Figure 9 This is a schematic diagram of the structure in the mold-closed state.

[0020] The text labels in the figure represent: 1. Fixed mounting part; 2. Movable mounting part; 3. Locking hole; 4. Restriction part; 5. Vertical column; 6. Expansion part; 7. Tie bar; 8. Pull-out part; 9. Seat plate; 10. Moving template; 11. Fixed template. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0022] Example 1, as Figures 1 to 9 As shown, this embodiment provides a self-locking mold structure, including a fixed mounting part 1 and a movable mounting part 2 arranged opposite to each other. The fixed mounting part 1 has a locking hole 3 on the side facing the movable mounting part 2. A limiting part 4 extending inward is provided on one side of the edge of the locking hole 3. A vertical post 5 is provided on the side of the movable mounting part 2 facing the fixed mounting part 1. An expansion part 6 is fixedly provided at the end of the vertical post 5. The outer diameter of the expansion part 6 is larger than the outer diameter of the vertical post 5. The outer diameter of the expansion part 6 is larger than the diameter of the locking hole 3 at the limiting part 4, but smaller than the diameter of other parts of the locking hole 3.

[0023] When the fixed mounting part 1 is fixedly mounted on the moving mold, the movable mounting part 2 is slidably mounted on the fixed mold in the lateral direction; when the fixed mounting part 1 is fixedly mounted on the fixed mold, the movable mounting part 2 is slidably mounted on the moving mold in the lateral direction. The sliding direction of the movable mounting part 2 is different from the mold closing direction; in this embodiment, the sliding direction of the movable mounting part 2 is perpendicular to the mold closing direction. The movable mounting part 2 is fixedly mounted on the tie rod 7, and the tie rod 7 is slidably mounted on the moving mold or fixed mold where the movable mounting part 2 is located. In this embodiment, the fixed mounting part 1 is installed on the forming surface of the fixed template 11 by bolts or other fasteners. At this time, the back of the moving template 10 is provided with a sliding groove, with both ends of the sliding groove along its length and the back open. This application uses the side with the cavity as the front and its back as the back. The tie rod 7 is slidably mounted in the sliding groove. The back of the moving template 10 is closed by a seat plate 9 locked by screws or the like, to facilitate the installation, adjustment, and maintenance of the tie rod 7 in the sliding groove.

[0024] At least one end of the pull rod 7 extends out of the movable template 10. In this embodiment, both ends of the pull rod 7 extend out of the movable template 10 along its length and are respectively fixedly connected to the pull-out part 8. The pull-out part 8 can be an interface for easy connection to an external drive device, or it can be a handle for easy manual operation. The external drive device can be an existing linear drive device such as a cylinder or a hydraulic cylinder.

[0025] Specific working process: When the moving mold and the fixed mold close, the expansion part 6 enters the locking hole 3 as the mold closes. At this time, the positions of the expansion part 6 and the limiting part 4 are offset from each other in the mold closing direction, and there is no interference. After the mold closes, the pull rod 7 is pulled by the pull part 8, which drives the movable mounting part 2 and the expansion part 6 to move laterally together. The expansion part 6 moves to a position where it at least partially overlaps with the limiting part 4 in the mold closing direction. Since the outer diameter of the expansion part 6 is larger than the hole diameter at the limiting part 4, the two form a mechanical self-locking mechanism that interlocks with each other, thereby firmly locking the moving mold plate 10 and the fixed mold plate 11 together, forming an independent pressure-holding unit, which does not require external equipment to continuously provide mold closing force.

[0026] After the pressure holding period ends, the pull rod 7 is pushed in the opposite direction by the pull section 8, causing the expansion section 6 to move back to a position offset from the limiting section 4. At this point, normal mold opening operation can be performed.

[0027] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A self-locking mold structure, characterized in that, The device includes a fixed mounting part (1) and a movable mounting part (2) arranged opposite to each other. The fixed mounting part (1) has a locking hole (3) on the side facing the movable mounting part (2). A limiting part (4) extending inward is provided on one side of the edge of the locking hole (3). A vertical column (5) is provided on the side of the movable mounting part (2) facing the fixed mounting part (1). An expansion part (6) is fixedly provided at the end of the vertical column (5). The outer diameter of the expansion part (6) is larger than the outer diameter of the vertical column (5). The outer diameter of the expansion part (6) is larger than the diameter of the locking hole (3) at the limiting part (4), but smaller than the diameter of other parts of the locking hole (3). The movable mounting part (2) is fixedly provided on a pull bar (7). The pull bar (7) can be slidably provided on the moving mold or the fixed mold, so that the movable mounting part (2) can slide relative to the moving mold or the fixed mold through the pull bar (7). The sliding direction of the movable mounting part (2) is different from the mold closing direction.

2. The self-locking mold structure according to claim 1, characterized in that, When the fixed mounting part (1) is fixedly mounted on the moving mold, the movable mounting part (2) is slidably mounted on the fixed mold in the lateral direction; when the fixed mounting part (1) is fixedly mounted on the fixed mold, the movable mounting part (2) is slidably mounted on the moving mold in the lateral direction.

3. The self-locking mold structure according to claim 1, characterized in that, The pull bar (7) extends at least one end out of the moving mold or fixed mold where it is located and is fixedly connected to the pull part (8).

4. The self-locking mold structure according to claim 1, characterized in that, The back of the moving mold or the fixed mold is provided with a sliding groove, and the pull bar (7) is slidably disposed in the sliding groove.

5. A self-locking mold structure according to claim 4, characterized in that, The back of the moving mold or the fixed mold is closed by a removable base plate (9).

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