Front mold core-pulling structure for manufacturing mold

Abstract

The utility model discloses a front mold core-pulling structure for manufacturing a mold. The front mold core-pulling structure comprises a mold plate, a mold core and a telescopic core-pulling group, two strip-shaped forming cavities which are arranged side by side are formed in the mold core; the telescopic core pulling set comprises an air cylinder rail block fixedly arranged on the side wall of the mold plate, a telescopic air cylinder is arranged at the end, away from the mold plate, of the air cylinder rail block, the telescopic direction of the output end of the telescopic air cylinder is located between the two forming cavities, and the telescopic direction of the output end of the telescopic air cylinder is parallel to the axial direction of each forming cavity. Two core pulling rods corresponding to the forming cavity are arranged at the output end of the telescopic air cylinder, and the two core pulling rods are inserted into the bottom position of the forming cavity; and aiming at a long-strip-shaped forming cavity, the long-strip-shaped forming cavity can be ensured to be inserted by utilizing the abutting effect of the air cylinder and the arrangement of the longer core-pulling rod.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and more particularly to a front mold core-pulling structure for manufacturing molds. Background Art

[0002] Mold (mújù) refers to various molds and tools used in industrial production to obtain the desired products by methods such as injection molding, blow molding, extrusion, die-casting or forging, smelting, and stamping. In short, a mold is a tool used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the object's shape by changing the physical state of the molded material.

[0003] In current injection molded parts, when the finished product is too long, it will cause difficulty in demolding. When designing the demolding, additional demolding design is required, which will lead to demolding confusion and difficulty in demolding, or the absence of ejector pins. Utility Model Content

[0004] The utility model aims to provide a front mold core pulling structure for manufacturing a mold, which is a mold core pulling structure with a hollow tube structure inside and can be quickly demoulded.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a front mold core pulling structure for manufacturing a mold, comprising a template, a mold core and a telescopic core pulling group;

[0006] There are two long strip-shaped molding cavities side by side inside the mold core;

[0007] The telescopic core pulling group includes a cylinder track block fixedly arranged on the side wall of the template, a telescopic cylinder is provided at the end of the cylinder track block away from the template, and the telescopic direction of the output end of the telescopic cylinder is located between the two molding cavities, and the telescopic direction of the output end of the telescopic cylinder is parallel to the axial direction of each molding cavity. Two core pulling rods corresponding to the molding cavities are provided on the output end of the telescopic cylinder, and the two core pulling rods are inserted into the bottom position of the molding cavity.

[0008] When forming a long strip into a cavity, the tightening effect of the cylinder and the setting of a longer core pulling rod can ensure that the long strip can be inserted into the forming cavity.

[0009] The utility model is further configured as follows: the template comprises a male template and a female template, and the female template is provided with a travel notch on the side where the axis of the molding cavity is extended and intersected.

[0010] The setting of the stroke gap can form a fit under a fixed and stable condition so as to fix the setting of the block.

[0011] The utility model is further configured as follows: a fixed block is provided at the end position of the output end of the telescopic cylinder, a fixed plate is provided on the side of the fixed block away from the telescopic cylinder, the two core-pulling rods are embedded between the fixed block and the fixed plate, and the axes of the two core-pulling rods and the output end of the telescopic cylinder are parallel to each other.

[0012] The arrangement of the fixed block and the fixed plate can arrange the two core-pulling rods side by side with each other and ensure that the axes of the two core-pulling rods are relatively parallel.

[0013] The utility model is further configured as follows: a travel slideway corresponding to the travel gap is opened on the cylinder track block.

[0014] The arrangement of the travel slideway can ensure that the fixed block moves stably along the direction of the travel slideway and is embedded in the travel gap.

[0015] The utility model is further configured as follows: a plurality of first ejector pin holes are opened on the male mold plate, a plurality of second ejector pin holes corresponding to the first ejector pin holes are opened on the male mold core, and the second ejector pin holes are communicated with the molding cavity.

[0016] The ventilation holes can be effectively formed by disposing a plurality of first ejector pins and a plurality of second ejector pins.

[0017] The utility model is further configured as follows: the diameter of the core-pulling rod gradually decreases toward one end away from the cylinder.

[0018] The gradually decreasing diameter of the core pulling rod can meet the design requirements and can also make the demoulding setting more convenient.

[0019] In summary, the present invention has the following beneficial effects: when forming a long strip into a cavity, the tightening effect of the cylinder and the provision of a longer core-pulling rod can ensure that the long strip can be inserted into the forming cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a plan cross-sectional view of the mold in the embodiment of the present utility model;

[0021] Figure 2 It is a longitudinal sectional view of the mold in the embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Telescopic cylinder; 2. Cylinder track block; 3. Fixed block; 4. Fixed plate; 5. Pull-out rod; 6. Stroke notch; 7. Forming slideway. DETAILED DESCRIPTION

[0024] In order to help those skilled in the art better understand the present invention, 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 embodiments described 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 making creative efforts should fall within the scope of protection of the present invention.

[0025] It should be noted that if the terms "first", "second", etc. are involved in the specification and claims of the present invention and the above-mentioned drawings, they are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate for the embodiments of the present invention described herein. In addition, if the terms "including" and "having" and any variations thereof are involved, it is intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] Furthermore, in this utility model, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] The following is combined with Figure 1-2 The utility model is described in further detail.

[0029] Example

[0030] At present, when encountering long strip structure finished products, they are usually arranged side by side. During the design, it will be very troublesome if the long rod is pulled out at the end of the long strip product. In order to ensure that the long rod can still be effectively pushed after the small rod is pulled out first, the following scheme can trigger the first demoulding of the ejector when the template is opened, and the setting of the telescopic cylinder 1 can assist in the extraction of the long rod core pulling rod 5, so as to ensure that the long rod core pulling rod 5 is loose or partially pulled out, which can smoothly assist in the extraction of the long rod.

[0031] like Figure 1 、 Figure 2 As shown, a front mold core pulling structure for manufacturing a mold includes a template, a mold core and a telescopic core pulling group.

[0032] There are two side-by-side long strip molding cavities inside the mold core. The mold core includes a male mold core and a female mold core. A telescopic core pulling group is provided on one side of the female mold core close to the injection port and on the side where the extended axis of the finished product intersects with the side of the female mold core.

[0033] The telescopic core pulling group includes a cylinder track block 2 fixedly arranged on the side wall of the template. A telescopic cylinder 1 is arranged at the end of the cylinder track block 2 away from the template, and the telescopic direction of the output end of the telescopic cylinder 1 is located between the two forming cavities. The axis of the output end of the telescopic cylinder 1 is located between the axes of the two forming cavities and is located in the middle of the axes of the two forming cavities. The telescopic direction of the output end of the telescopic cylinder 1 is parallel to the axis direction of each forming cavity. Two core pulling rods 5 corresponding to the forming cavities are arranged on the output end of the telescopic cylinder 1, and the two core pulling rods 5 are inserted into the bottom position of the forming cavity.

[0034] A fixed block 3 is provided at the end position of the output end of the telescopic cylinder 1, and a fixed plate 4 is provided on the side of the fixed block 3 away from the telescopic cylinder 1. Two core-pulling rods 5 are embedded between the fixed block 3 and the fixed plate 4. The axes of the two core-pulling rods 5 and the output end of the telescopic cylinder 1 are parallel to each other; the setting of the fixed block 3 and the fixed plate 4 can set the two core-pulling rods 5 side by side and ensure that the axes of the two core-pulling rods 5 are relatively parallel.

[0035] A travel slide corresponding to the travel gap 6 is provided on the cylinder track block 2, and the fixed block 3 can be embedded in the travel gap 6 to fill the position of the travel gap 6, and the fixed block 3 is located in the travel slide, and the travel slide limits the left and right shaking of the fixed block 3 when sliding; the setting of the travel slide can ensure that the setting of the fixed block 3 is stably moving forward along the direction of the travel slide and embedded in the travel gap 6.

[0036] The template includes a male template and a female template. The female template is located on the side where the axis of the molding cavity extends and intersects, and a stroke gap 6 is opened. The setting of the stroke gap 6 can form a fit in a fixed and stable condition to facilitate the setting of the fixed block 3.

[0037] A plurality of first ejector holes are provided on the male mold plate, and a plurality of second ejector holes corresponding to the first ejector holes are provided on the male mold core, and the second ejector holes are connected to the molding cavity. Each ejector pin passes through a first ejector pin hole and a second ejector pin hole into the molding cavity; the arrangement of the plurality of first ejector pins and the second ejector pins can effectively form air vents.

[0038] The diameter of the core-pulling rod 5 gradually decreases toward the end away from the cylinder; the gradually decreasing diameter of the core-pulling rod 5 can meet the design requirements and can also be more convenient for demoulding.

[0039] Working principle: When forming a long strip into a cavity, the tightening effect of the cylinder and the setting of a longer core pulling rod 5 can ensure that the long strip can be inserted into the forming cavity.

[0040] It should be noted that all features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0041] In addition, the above-mentioned specific embodiments are merely illustrative. Those skilled in the art may devise various solutions based on the disclosure of this utility model, and such solutions fall within the scope of disclosure and the scope of protection of this utility model. Those skilled in the art should understand that the specification and drawings of this utility model are illustrative and do not constitute limitations of the claims. The scope of protection of this utility model is defined by the claims and their equivalents.

Claims

1. A core pulling structure for a front mold of a manufacturing mold, characterized in that: include: template; The mold core has two parallel long strip molding cavities inside, and the mold core includes a male mold core and a female mold core; A telescopic core pulling group comprises a cylinder track block (2) fixedly arranged on the side wall of the template, a telescopic cylinder (1) is arranged at one end of the cylinder track block (2) away from the template, and the telescopic direction of the output end of the telescopic cylinder (1) is located between the two molding cavities, and the telescopic direction of the output end of the telescopic cylinder (1) is parallel to the axial direction of each molding cavity, and two core pulling rods (5) corresponding to the molding cavities are arranged on the output end of the telescopic cylinder (1), and the two core pulling rods (5) are inserted into the bottom position of the molding cavity.

2. A front mold core pulling structure for manufacturing a mold according to claim 1, characterized in that: The template comprises a male template and a female template, and the female template is provided with a travel notch (6) on the side where the axis of the molding cavity is extended and intersected.

3. A front mold core pulling structure for manufacturing a mold according to claim 2, characterized in that: A fixed block (3) is provided at the output end of the telescopic cylinder (1); a fixed plate (4) is provided on the side of the fixed block (3) away from the telescopic cylinder (1); the two core-pulling rods (5) are embedded between the fixed block (3) and the fixed plate (4); and the axes of the two core-pulling rods (5) and the output end of the telescopic cylinder (1) are parallel to each other.

4. A front mold core-pulling structure for manufacturing a mold according to claim 2, characterized in that: The cylinder track block (2) is provided with a travel slideway corresponding to the travel gap (6).

5. The front mold core pulling structure of a manufacturing mold according to claim 2, characterized in that: The male mold plate is provided with a plurality of first ejector pin holes, the male mold core is provided with a plurality of second ejector pin holes corresponding to the first ejector pin holes, and the second ejector pin holes are communicated with the molding cavity.

6. The front mold core pulling structure of a manufacturing mold according to claim 1, characterized in that: The core-pulling rod (5) has a diameter that gradually decreases toward the end away from the cylinder.

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