Plastic mold with limiting structure

Abstract

The utility model discloses a plastic mold with a limiting structure, and relates to the technical field of plastic molds. The plastic mold with the limiting structure comprises a base, a demolding mechanism is arranged in the base, positioning columns are connected to the four corners of the base in an inserted mode, the lower end of a top plate is connected with a pressing plate, the lower end of the pressing plate is connected with a movable mold plate, and the movable mold plate is located above a fixed mold plate. A demolding mechanism is arranged in the base and connected with a supporting plate through the telescopic end of a double-shaft air cylinder, the upper end of the supporting plate is connected with three sets of ejector pins, and the three sets of ejector pins extend to the upper side of the fixed mold plate, so that finished products on the fixed mold plate are separated, positioning columns are inserted into the four corners of the base, and the lower ends of the positioning columns are connected with limiting discs. And the movable mold plate can be accurately pressed with the fixed mold plate through the positioning column and the limiting disc, so that damage caused by dislocation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic moulds, in particular to a plastic mould with a limiting structure. Background Art

[0002] A plastic mold is a production tool used to manufacture plastic products. Its main function is to inject molten plastic material into a pre-set mold cavity with the help of a press, and then cool and solidify it in the mold to finally obtain the desired plastic product.

[0003] There are many types of plastic molds, which can be divided into injection molds, blow molds and thermoforming molds. The injection mold consists of a movable mold and a fixed mold. The movable mold is installed on the movable template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine.

[0004] The existing plastic mold has a poor limiting effect. In the process of the movable mold fitting the fixed mold, it cannot play a good positioning role. To a certain extent, it is easy to cause the movable mold and the fixed mold to be misaligned during injection molding, causing damage to the mold. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a plastic mold with a limiting structure, which solves the problem of damage caused by inaccurate positioning when the movable mold and the fixed mold are fitted.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a plastic mold with a limited structure includes a base, a demolding mechanism is arranged inside the base, the demolding mechanism includes a double-axis cylinder, a support plate, and an ejector pin, the telescopic end of the double-axis cylinder is connected to the support plate, the upper end of the support plate is connected to three groups of ejectors, and the ejectors extend to the upper side of the base, the upper end of the base is connected to a fixed template, and the ejectors extend to the upper side of the fixed template, the four corners of the base are plugged with positioning columns, and the lower end of the positioning columns is connected to a limited disk, and the limiting disk is located in the base, the upper end of the positioning column is connected to a top plate, the lower end of the top plate is connected to a pressure plate, the lower end of the pressure plate is connected to a movable template, and the movable template is located above the fixed template.

[0009] Preferably, an injection pipe is connected to the upper end of the top plate, and injection ports are opened in the middle of the top plate, the pressure plate and the movable mold plate.

[0010] Preferably, a groove adapted to the demoulding mechanism is provided on the base, and the width of the groove of the base is smaller than the width of the fixed mold plate.

[0011] Preferably, four guide grooves adapted to the limiting plate are provided in the base.

[0012] Preferably, the ejector pin is parallel to the surface of the fixed plate when retracted, and the material of the ejector pin is the same as that of the fixed plate.

[0013] Preferably, the width of the pressing plate is the same as that of the fixed template, and the movable template and the fixed template are horizontally opposed to each other up and down.

[0014] (III) Beneficial effects

[0015] The utility model provides a plastic mold with a limited position structure. It has the following beneficial effects:

[0016] The base is provided with a demoulding mechanism, which is connected to a support plate through the telescopic end of a double-axis cylinder, and the upper end of the support plate is connected to three groups of ejectors, which extend to the upper side of the fixed template, so that the finished products on the fixed template can be separated, and positioning columns are inserted at the four corners of the base, and the lower ends of the positioning columns are connected to a limiting disk, so that the movable template can be accurately pressed together with the fixed template through the positioning columns and the limiting disk to avoid damage caused by misalignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the demoulding mechanism of the utility model;

[0019] Figure 3 It is a schematic diagram of the movable template of the utility model;

[0020] In the figure: 1. base; 2. demoulding mechanism; 21. double-axis cylinder; 22. support plate; 23. ejector pin; 3. fixed template; 4. positioning column; 5. limit plate; 6. ejector plate; 7. pressure plate; 8. movable template; 9. injection pipe; 10. injection gate. DETAILED DESCRIPTION

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

[0022] See also Figure 1-3The utility model provides a technical solution: a plastic mold with a limited position structure comprises a base 1, a demoulding mechanism 2 is arranged inside the base 1, the demoulding mechanism 2 comprises a double-axis cylinder 21, a support plate 22, and an ejector pin 23, the telescopic end of the double-axis cylinder 21 is connected with a support plate 22, the upper end of the support plate 22 is connected with three groups of ejector pins 23, and the ejector pins 23 extend to the upper side of the base 1, the upper end of the base 1 is connected with a fixed template 3, and the ejector pins 23 extend to the upper side of the fixed template 3, the four corners of the base 1 are plugged with positioning columns 4, and the lower end of the positioning columns 4 is connected with a limited position disk 5, and the limiting disk 5 is located in the base 1, the upper end of the positioning columns 4 is connected with a top plate 6, the lower end of the top plate 6 is connected with a pressing plate 7, the lower end of the pressing plate 7 is connected with a movable template 8, and the movable template 8 is located above the fixed template 3. The base 1 is provided with a demoulding mechanism 2, which is connected to a support plate 22 through the telescopic end of a double-axis cylinder 21. The upper end of the support plate 22 is connected to three groups of ejector pins 23, which extend to the upper side of the fixed template 3, so that the finished products on the fixed template 3 can be separated. The four corners of the base 1 are plugged with positioning columns 4, and the lower ends of the positioning columns 4 are connected to a limiting disk 5. The positioning columns 4 and the limiting disk 5 enable the movable template 8 to be accurately pressed with the fixed template 3 to avoid damage caused by misalignment. The movable template 8 is connected to the lower end of the pressing plate 7, and the pressing plate 7 is connected to the lower end of the ejector plate 6.

[0023] See also Figure 1-3 The utility model provides a technical solution: the upper end of the top plate 6 is connected with a pouring pipe 9, and the middle of the top plate 6, the pressing plate 7 and the moving mold plate 8 are all provided with a pouring port 10. The pouring pipe 9 at the upper end of the top plate 6 allows the material to enter the mold through the pouring port 10.

[0024] See also Figure 1-3 The utility model provides a technical solution: the base 1 is provided with a groove adapted to the demoulding mechanism 2, and the width of the groove of the base 1 is smaller than the width of the fixed template 3. The groove provided on the base 1 is used to place the demoulding mechanism 2, and the groove of the base 1 is larger than the width of the fixed template 3, so that the base 1 can support the fixed template 3.

[0025] See also Figure 1-3 The utility model provides a technical solution: four guide grooves adapted to the limiting plate 5 are provided in the base 1. The guide grooves provided in the base 1 are used for the lifting and lowering of the positioning column 4 and the limiting plate 5.

[0026] See also Figure 1-3 The utility model provides a technical solution: when the ejector pin 23 is retracted, it is parallel to the surface of the fixed mold plate 3, and the material of the ejector pin 23 is the same as that of the fixed mold plate 3. When the ejector pin 23 is retracted, it is parallel to the surface of the fixed mold plate 3, so that the pressing is not affected, and the material of the ejector pin 23 is the same as that of the fixed mold plate 3, so that the ejector pin 23 will not be damaged.

[0027] See also Figure 1-3 The utility model provides a technical solution: the width of the pressing plate 7 is the same as the width of the fixed mold plate 3, and the movable mold plate 8 is horizontally opposite to the fixed mold plate 3. The pressing plate 7 and the fixed mold plate 3 have the same width, which makes the pressing more precise.

[0028] During operation, a demoulding mechanism 2 is provided in the base 1, and the demoulding mechanism 2 is connected to a support plate 22 through the telescopic end of a double-axis cylinder 21. Three groups of ejectors 23 are connected to the upper end of the support plate 22, and the three groups of ejectors 23 extend to the upper side of the fixed template 3, so that the finished products on the fixed template 3 are separated. When the ejector 23 is retracted, it is parallel to the surface of the fixed template 3, so that it is not affected during pressing. The material of the ejector 23 is the same as that of the fixed template 3, so that the ejector 23 will not be damaged. Positioning columns 4 are inserted at the four corners of the base 1, and the lower end of the positioning column 4 is connected to a limiting disk 5. Through the positioning column 4 and the limiting disk 5, the movable template 8 can be accurately pressed with the fixed template 3 to avoid damage caused by misalignment. The movable template 8 is connected to the lower end of the pressing plate 7, and the pressing plate 7 is connected to the lower end of the ejector plate 6. The groove provided on the base 1 is used for placing the demoulding mechanism 2, and the groove of the base 1 is larger than the width of the fixed template 3, so that the base 1 can support the fixed template 3.

[0029] In summary, the plastic mold with a limiting structure solves the problem of damage caused by inaccurate positioning when the movable mold and the fixed mold are fitted.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic mold with a limiting structure, comprising a base (1), characterized in that: The base (1) is provided with a demoulding mechanism (2) inside, and the demoulding mechanism (2) comprises a double-axis cylinder (21), a support plate (22), and an ejector pin (23). The telescopic end of the double-axis cylinder (21) is connected to the support plate (22), and the upper end of the support plate (22) is connected to three groups of ejector pins (23), and the ejector pins (23) extend to the upper side of the base (1). The upper end of the base (1) is connected to a fixed mold plate (3), and the ejector pins (23) are connected to the upper end of the base (1). ) extends to the upper side of the fixed template (3), the four corners of the base (1) are plugged with positioning columns (4), and the lower ends of the positioning columns (4) are connected to a limiting disk (5), and the limiting disk (5) is located in the base (1), the upper ends of the positioning columns (4) are connected to a top plate (6), the lower ends of the top plate (6) are connected to a pressure plate (7), the lower ends of the pressure plate (7) are connected to a movable template (8), and the movable template (8) is located above the fixed template (3).

2. A plastic mold with a limiting structure according to claim 1, characterized in that: The upper end of the top plate (6) is connected to a pouring pipe (9), and pouring ports (10) are provided in the middle of the top plate (6), the pressing plate (7) and the movable mold plate (8).

3. The plastic mold with a limiting structure according to claim 1, characterized in that: The base (1) is provided with a groove matched with the demoulding mechanism (2), and the width of the groove of the base (1) is smaller than the width of the fixed mold plate (3).

4. The plastic mold with a limiting structure according to claim 1, characterized in that: Four guide grooves matching the limiting plate (5) are provided in the base (1).

5. The plastic mold with a limiting structure according to claim 1, characterized in that: The ejector pin (23) is parallel to the surface of the fixed mold plate (3) when retracted, and the material of the ejector pin (23) is the same as that of the fixed mold plate (3).

6. The plastic mold with a limiting structure according to claim 1, characterized in that: The width of the pressing plate (7) is the same as that of the fixed die plate (3), and the movable die plate (8) and the fixed die plate (3) are horizontally opposed to each other in the upper and lower directions.

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