Demolding structure of injection mold

Abstract

The utility model relates to the field of injection molds, in particular to a demolding structure of an injection mold, which comprises a box body, a forming groove, a mounting groove, a cam, a connecting rod and a handle, the mounting groove is arranged in the box body, the cam is rotatably mounted in the mounting groove, and the handle is arranged on the outer wall of one side of the box body. An input shaft of the handle is fixedly connected with the rotating center of one side of the cam, limiting holes distributed in an annular array mode are formed in the outer edge of one side of the box body, a limiting nail is arranged in the handle and matched with the limiting holes, and a forming groove is formed in the upper end of the box body. According to the device, the flexible ejection demolding mechanism with the limiting mechanism is arranged, so that the problems that an existing mold demolding structure lacks flexible ejection design, rigid collision occurs when an object is ejected, and abrasion of the device is accelerated due to long-time use are solved.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to a demoulding structure of an injection mold. Background Art

[0002] The demoulding structure of the injection mold has the following functions:

[0003] 1. Convenient demoulding: The demoulding structure design can ensure that the molded parts can be easily removed from the mold, improving production efficiency;

[0004] 2. Reduce damage: A good demoulding structure can reduce the risk of damage to the molded parts and the mold itself, avoiding unnecessary production stagnation and maintenance;

[0005] 3. Improve surface quality: Effective demoulding structure design can reduce the damage or defects of molded parts caused by demoulding and improve the surface quality of the final product.

[0006] In the existing technology, although a certain demoulding process can be achieved during use, there is a defect: the existing mold demoulding structure lacks a flexible ejection design, which leads to a rigid collision when ejecting objects, resulting in accelerated wear of the device after long-term use. In view of this, we propose a demoulding structure for an injection mold to solve the above problem. Utility Model Content

[0007] The utility model aims to provide a demoulding structure for an injection mold in view of the problems existing in the background technology.

[0008] The technical solution of the utility model is as follows: a demoulding structure of an injection mold, comprising a box body, a molding groove, a mounting groove, a cam, a connecting rod and a handle, wherein the box body is provided with a mounting groove inside, a cam is rotatably mounted inside the mounting groove, a handle is provided on an outer wall of one side of the box body, an input shaft of the handle is fixedly connected to a rotation center of one side of the cam, limiting holes distributed in a ring array are provided on the outer side of one side of the box body, limiting pins are provided inside the handle, the limiting pins are matched with the limiting holes, and a molding groove is provided on the upper end of the box body.

[0009] When using a demolding structure of an injection mold in the present solution, the present device can be processed by traditional compression molding during use. Then, when ejecting, the handle can be manually turned to pull the limit pin to separate it from the limit hole. Turning the handle can drive the cam to rotate, and the properties of the cam are used to drive the connecting rod upward to eject the object. The limit pin and spring can be used in conjunction with the limit hole to fix the position of the cam, which can facilitate the limit block to be fixed at different heights, making it convenient for the user to handle the mold.

[0010] Preferably, a groove is provided at the bottom of the molding groove, a limiting block is provided inside the groove, and a connecting rod is provided at the lower end of the limiting block.

[0011] Preferably, a mounting frame is provided at the lower end of the connecting rod, a roller is rotatably mounted inside the mounting frame, and the roller is in contact with the outer wall of the cam.

[0012] Preferably, a bracket is provided at the lower end of the box body, and a base is provided at the lower end of the bracket.

[0013] Preferably, a limiting ring is provided at one end of the limiting pin, and a spring is provided between the limiting ring and one side of the handle.

[0014] Preferably, the upper end of the molding groove is provided with positioning holes distributed in a square array.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. The utility model utilizes a cam and a roller to eject objects. This ejection method is a flexible design, which can reduce rigid collision and increase the use time of the device.

[0017] 2. Based on the first beneficial effect, the device can utilize limiting pins in combination with springs and limiting holes to achieve the fixing effect at each position, making it easy for users to operate.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0020] Figure 2 It is a side view schematic diagram of the utility model;

[0021] Figure 3 It is a top view schematic diagram of the utility model;

[0022] Figure 4 It is a main cross-sectional schematic diagram of the utility model;

[0023] Figure 5 For the utility model Figure 1 A magnified schematic diagram of the structure in the middle.

[0024] Reference numerals:

[0025] 1. Box body; 2. Positioning hole; 3. Forming groove; 4. Limit hole; 5. Base; 6. Bracket; 7. Limit block; 8. Connecting rod; 9. Groove; 10. Mounting frame; 11. Cam; 12. Roller; 13. Mounting groove; 14. Limit pin; 15. Handle; 16. Spring; 17. Limit ring. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] See also Figure 1-Figure 5 As shown, this embodiment is a demoulding structure of an injection mold, including a box body 1, a molding groove 3, a mounting groove 13, a cam 11, a connecting rod 8 and a handle 15. The mounting groove 13 is provided inside the box body 1, and the cam 11 is rotatably installed inside the mounting groove 13. The outer wall of one side of the box body 1 is provided with a handle 15, and the input shaft of the handle 15 is fixedly connected to the rotation center of one side of the cam 11. The outer side of one side of the box body 1 is provided with limiting holes 4 distributed in a ring array, and the handle 15 is provided with limiting pins 14, and the limiting pins 14 are adapted to the limiting holes 4. The molding groove 3 is provided at the upper end of the box body 1;

[0032] When in use, the device can be processed by traditional compression molding. Then, when ejecting, the handle 15 can be manually turned to pull the limit pin 14 to separate it from the limit hole 4. The handle 15 can drive the cam 11 to rotate, and the property of the cam 11 is used to drive the connecting rod 8 to push upward to realize the ejection of the object. The limit pin 14 and the spring 16 can cooperate with the limit hole 4 to fix the position of the cam 11, which can facilitate the fixing of the limit block 7 at different heights, making it convenient for the user to handle the mold.

[0033] A groove 9 is provided at the bottom of the molding groove 3, a limit block 7 is provided inside the groove 9, and a connecting rod 8 is provided at the lower end of the limit block 7. The limit block 7 can be just placed inside the groove 9, and the thickness thereof is equal, which can ensure the flatness of the bottom during the die pressing.

[0034] Example 2

[0035] See also Figure 1-Figure 5 As shown, this embodiment is based on embodiment 1 and also includes: a mounting frame 10 is provided at the lower end of the connecting rod 8, a roller 12 is rotatably installed inside the mounting frame 10, the roller 12 is fitted with the outer wall of the cam 11, and the roller 12 can realize the silky movement of the surface of the cam 11 to achieve the effect of flexible collision.

[0036] A bracket 6 is disposed at the lower end of the box body 1, and a base 5 is disposed at the lower end of the bracket 6. The arrangement of the bracket 6 and the base 5 can increase the stability of the device.

[0037] A limiting ring 17 is provided at one end of the limiting pin 14 , and a spring 16 is provided between the limiting ring 17 and one side of the handle 15 . Under the action of the spring 16 , the limiting pin 14 can be inserted into the limiting hole 4 without being pulled, thereby ensuring the fixing effect of the cam 11 .

[0038] The upper end of the molding groove 3 is provided with positioning holes 2 distributed in a square array. The positioning holes 2 are positioning mechanisms dedicated to the die, which can ensure the accuracy of the die.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A demoulding structure for an injection mold, comprising a box body (1), a molding groove (3), a mounting groove (13), a cam (11), a connecting rod (8) and a handle (15), characterized in that: The box body (1) is provided with a mounting groove (13) inside, a cam (11) is rotatably mounted inside the mounting groove (13), a handle (15) is provided on the outer wall of one side of the box body (1), an input shaft of the handle (15) is fixedly connected to the rotation center of one side of the cam (11), one side of the box body (1) is provided with limiting holes (4) distributed in a ring array on the outer side, a limiting pin (14) is provided inside the handle (15), the limiting pin (14) is matched with the limiting hole (4), and a molding groove (3) is provided at the upper end of the box body (1).

2. The demoulding structure of an injection mold according to claim 1, characterized in that: A groove (9) is provided at the bottom of the molding groove (3), a limit block (7) is provided inside the groove (9), and a connecting rod (8) is provided at the lower end of the limit block (7).

3. The demoulding structure of an injection mold according to claim 1, characterized in that: A mounting frame (10) is provided at the lower end of the connecting rod (8), a roller (12) is rotatably mounted inside the mounting frame (10), and the roller (12) is in contact with the outer wall of the cam (11).

4. The demoulding structure of an injection mold according to claim 1, characterized in that: A bracket (6) is provided at the lower end of the box body (1), and a base (5) is provided at the lower end of the bracket (6).

5. The demoulding structure of an injection mold according to claim 1, characterized in that: A limiting ring (17) is arranged at one end of the limiting pin (14), and a spring (16) is arranged between the limiting ring (17) and one side of the handle (15).

6. The demoulding structure of an injection mold according to claim 1, characterized in that: The upper end of the molding groove (3) is provided with positioning holes (2) distributed in a square array.

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