Precision mold positioning mechanism

Abstract

The utility model provides a precision mould positioning mechanism, which relates to the technical field of precision moulds and comprises a movable mould, a fixed mould is arranged on the back of the movable mould, fixing columns are arranged on the front of the movable mould close to four positions penetrating through the back, and nuts are in threaded connection with the peripheries of one ends of the fixing columns close to the front of the movable mould. First sleeves are in threaded connection with the peripheries of the ends, close to the back face of the movable mold, of the fixing columns, built-in grooves are formed in the positions, close to the four corners, of the front face of the fixed mold, second sleeves are inserted into the built-in grooves, and first limiting grooves are symmetrically formed in the top ends and the bottoms of the interiors of the second sleeves; and through the use of a first limiting groove and a second limiting strip, the positioning precision in the mold closing process of the movable mold and the fixed mold can be further improved, when abrasion occurs, the first sleeve and the second sleeve can be independently replaced, and compared with a traditional mold, the use cost is greatly reduced, and the practicability is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to precision mould technical field especially relates to a precision mould positioning mechanism. BACKGROUND

[0002] Mould, industrial production is used to injection, blow molding, extrusion, die casting or forging pressure forming, smelting, stamping etc. Method obtains the required product various moulds and tools, in short, mould is used to make the tool of forming article, this kind of tool is by various parts constitutes, different mould is by different parts constitutes, it realizes the processing of article appearance mainly through the change of the physical state of the formed material, has the title of " the mother of industry " among them, injection mould is by fixed mould and movable mould composition, when the mould is closed, the close fit of both is realized through the positioning mechanism, and then the overflow of material is prevented, and the injection quality of the mould is improved;

[0003] The existing injection mould is usually positioned by the positioning hole arranged on the fixed mould and the positioning column arranged on the movable mould, this positioning mode has certain disadvantages, wear will occur between the positioning hole and the positioning column after long-time use, thereby reducing the positioning precision, and the positioning hole is fixedly arranged on the fixed mould, so that the whole fixed mould needs to be replaced when wearing, which undoubtedly increases the use cost and has poor practicality, therefore, the precision mould positioning mechanism is proposed. UTILITY MODEL CONTENTS

[0004] The utility model discloses a precision mould positioning mechanism, which can realize positioning through the positioning hole arranged on the fixed mould and the positioning column arranged on the movable mould, and the positioning hole and the positioning column are not in direct contact, so that the wear between the positioning hole and the positioning column is avoided, the positioning precision is improved, the positioning hole is not fixedly arranged on the fixed mould, so that the fixed mould does not need to be replaced when wearing, the use cost is reduced, and the practicality is improved.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A precision mould positioning mechanism, comprising a movable mould, the back of the movable mould is provided with a fixed mould;

[0007] The front of the movable mould is provided with a fixed column which penetrates the back near four corners, the periphery of the fixed column near the one end of the front of the movable mould is screw-connected with a nut, and the periphery of the fixed column near the one end of the back of the movable mould is screw-connected with a first sleeve;

[0008] The front of the fixed mould is provided with an embedded groove near four corners, the embedded groove is inserted with a second sleeve, and the top end and the bottom of the inside of the second sleeve are symmetrically provided with a first limiting slot.

[0009] As the preferred scheme of the utility model, the front of the movable mold is provided with an injection channel penetrating through the back, and the front of the fixed mold is provided with a forming groove, and the injection channel is communicated with the forming groove.

[0010] The technical effect of the above further scheme is that after the fixed mold and the movable mold are combined, the external hot melt plastic can be injected into the forming groove through the injection channel, and injection molding operation can be performed.

[0011] As the preferred scheme of the utility model, the outer periphery of the fixed column is symmetrically welded with a first limiting strip near the top end and the bottom, and the first limiting strip is slidingly connected with the movable mold.

[0012] The technical effect of the above further scheme is that the first limiting strip is slidingly connected with the movable mold, so that the fixed column can be limited during the combining process, the first sleeve is prevented from rotating in the movable mold, and the use stability is improved.

[0013] As the preferred scheme of the utility model, the top end and the bottom of the first sleeve are symmetrically welded with a second limiting strip, and the second limiting strip is inserted into the first limiting groove.

[0014] The technical effect of the above further scheme is that the second limiting strip is inserted into the first limiting groove, so that the position of the first sleeve inserted into the second sleeve is more accurate during the combining process, and the positioning effect is improved.

[0015] As the preferred scheme of the utility model, the outer surfaces of the first sleeve and the second limiting strip are treated by a nickel plating process.

[0016] The technical effect of the above further scheme is that the nickel plating process can improve the surface hardness of the first sleeve and the second limiting strip, thereby enhancing the wear resistance of the first sleeve and the second limiting strip and improving the service life.

[0017] As the preferred scheme of the utility model, the left and right sides of the built-in groove are symmetrically provided with a second limiting groove, the outer periphery of the second sleeve is symmetrically welded with a third limiting strip near the left and right sides, and the third limiting strip is inserted into the second limiting groove.

[0018] The technical effect of the above further scheme is that the third limiting strip is inserted into the second limiting groove, so that the second sleeve can be limited during installation, the built-in deviation of the first limiting groove is prevented, the use convenience is improved, and the second sleeve is also prevented from rotating in the built-in groove during the combining process, and the positioning effect is improved.

[0019] As the preferred scheme of the utility model, the inner surface of the second sleeve is treated by a copper plating process.

[0020] The technical effect of the further scheme is that the smoothness of the inner surface of the second sleeve is improved through the copper plating process, thereby reducing the friction between the inner surface of the second sleeve and the outer surface of the first sleeve, and further improving the service life of the first sleeve and the second sleeve.

[0021] As a preferred scheme of the utility model, the fixed mold surface is provided with a thread rod which is screwed with the built-in groove and the second sleeve.

[0022] The technical effect of the further scheme is that the second sleeve is fixed in the built-in groove by rotating the thread rod, preventing the second sleeve from sliding out of the built-in groove during use, and improving the use stability.

[0023] Compared with the prior art, the utility model has the beneficial effects that:

[0024] In the utility model, through the design of the movable mold and the fixed mold, the positioning accuracy during the mold closing process of the movable mold and the fixed mold is further improved by using the first limiting groove and the second limiting strip, and when wear occurs, the first sleeve and the second sleeve can be replaced separately, compared with the traditional mold, the whole does not need to be replaced, the use cost is greatly reduced, and the practicality is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model provides a whole structure schematic diagram of a precision mold positioning mechanism;

[0026] Figure 2 The utility model provides a movable mold side structure anatomical drawing of a precision mold positioning mechanism;

[0027] Figure 3 The utility model provides a fixed mold side structure anatomical drawing of a precision mold positioning mechanism;

[0028] Figure 4 The utility model provides a fixed mold top end structure anatomical drawing of a precision mold positioning mechanism.

[0029] Legend: 1, movable mold; 101, fixed column; 1011, first limiting strip; 102, nut; 103, first sleeve; 1031, second limiting strip; 104, injection channel; 2, fixed mold; 201, built-in groove; 2011, second limiting groove; 202, second sleeve; 2021, third limiting strip; 203, first limiting groove; 204, forming groove; 205, thread rod. DETAILED DESCRIPTION

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0031] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] Example 1:

[0035] like Figures 1-4 As shown, this utility model provides a technical solution: a precision mold positioning mechanism, including a moving mold 1, a fixed mold 2 on the back of the moving mold 1, and a fixing post 101 through the back of the front of the moving mold 1 near four points. A nut 102 is threadedly connected to the outer periphery of the fixing post 101 near the front of the moving mold 1, and a first sleeve 103 is threadedly connected to the outer periphery of the fixing post 101 near the back of the moving mold 1. An internal groove 201 is opened on the front of the fixed mold 2 near four corners, and a second sleeve 202 is inserted into the internal groove 201. A first limiting groove 203 is symmetrically opened at the top and bottom of the second sleeve 202.

[0036] Example 2:

[0037] like Figures 1-4As shown, the front of the movable mold 1 is provided with an injection channel 104 through the back, the front of the fixed mold 2 is provided with a forming groove 204, the injection channel 104 and the forming groove 204 are connected, after the fixed mold 2 and the movable mold 1 are closed, the external hot melt plastic can be injected into the forming groove 204 through the injection channel 104, the injection operation is carried out, the periphery of the fixed column 101 is symmetrically welded with a first limiting strip 1011 near the top and the bottom, the first limiting strip 1011 is slidably connected with the movable mold 1, through the sliding connection between the first limiting strip 1011 and the movable mold 1, the fixed column 101 can be limited during the closing process, preventing it from driving the first sleeve 103 to rotate inside the movable mold 1, improving the use stability, the top and bottom of the first sleeve 103 are symmetrically welded with a second limiting strip 1031, the second limiting strip 1031 is inserted into the first limiting groove 203, through the insertion of the second limiting strip 1031 and the first limiting groove 203, the position of the first sleeve 103 inserted into the second sleeve 202 can be more accurate during the closing process, improving the positioning effect, the outer surfaces of the first sleeve 103 and the second limiting strip 1031 are treated by nickel plating process, through the nickel plating process, the surface hardness of the first sleeve 103 and the second limiting strip 1031 can be improved, thereby enhancing the wear resistance of the first sleeve 103 and the second limiting strip 1031, improving the service life, the second limiting groove 2011 is symmetrically provided in the left and right sides inside the built-in groove 201, the periphery of the second sleeve 202 is symmetrically welded with a third limiting strip 2021 near the left and right sides, the third limiting strip 2021 is inserted into the second limiting groove 2011, through the insertion of the third limiting strip 2021 and the second limiting groove 2011, the second sleeve 202 can be limited during installation, preventing the built-in first limiting groove 203 from deviating, improving the use convenience, and also preventing the second sleeve 202 from rotating inside the built-in groove 201 during the closing process, improving the positioning effect, the inner surface of the second sleeve 202 is treated by copper plating process, through the copper plating process, the smoothness of the inner surface of the second sleeve 202 can be improved, thereby reducing the friction between the inner surface of the second sleeve 202 and the outer surface of the first sleeve 103, further improving the service life of the first sleeve 103 and the second sleeve 202, the surface of the fixed mold 2 is provided with a threaded rod 205 threaded connected with the built-in groove 201 and the second sleeve 202, through rotating the threaded rod 205, the second sleeve 202 can be fixed inside the built-in groove 201, preventing the second sleeve 202 from sliding out of the built-in groove 201 during use, improving the use stability.

[0038] The utility model discloses a work flow: when the mould appears abrasion, to the first sleeve 103 and second sleeve 202 carry out replacement use, first rotate the first sleeve 103, can make it with fixed column 101 separate contact, complete the first sleeve 103 dismounting work, rotate second threaded rod 205, make it separate with second sleeve 202 and built-in recess 201 contact, can pour it from built-in recess 201 inside and export, complete second sleeve 202's dismounting, compared with traditional mould, need not carry out integral replacement, greatly reduced use cost, effectively improved practicality.

[0039] Although the embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A precision mold positioning mechanism, comprising a moving mold (1), characterized in that: The back of the moving mold (1) is provided with a fixed mold (2); The front of the moving mold (1) is provided with four fixed posts (101) through the back. The outer periphery of the fixed post (101) near the front of the moving mold (1) is connected with a nut (102), and the outer periphery of the fixed post (101) near the back of the moving mold (1) is connected with a first sleeve (103). The fixed mold (2) has an internal groove (201) on the front side near the four corners. A second sleeve (202) is inserted into the internal groove (201). The top and bottom of the second sleeve (202) are symmetrically provided with a first limiting groove (203).

2. The precision mold positioning mechanism according to claim 1, characterized in that: The moving mold (1) has an injection channel (104) extending through the back side, and the fixed mold (2) has a molding groove (204) on its front side. The injection channel (104) is connected to the molding groove (204).

3. The precision mold positioning mechanism according to claim 1, characterized in that: The fixed column (101) has a first limiting strip (1011) symmetrically welded to its periphery near the top and bottom. The first limiting strip (1011) is slidably connected to the moving mold (1).

4. The precision mold positioning mechanism according to claim 1, characterized in that: The top and bottom of the first sleeve (103) are symmetrically welded with a second limiting strip (1031), and the second limiting strip (1031) is inserted into the first limiting groove (203).

5. The precision mold positioning mechanism according to claim 1, characterized in that: The outer surfaces of the first sleeve (103) and the second limiting strip (1031) are both treated with nickel plating.

6. The precision mold positioning mechanism according to claim 1, characterized in that: The inner groove (201) has a second limiting groove (2011) symmetrically opened on the left and right sides. The outer periphery of the second sleeve (202) is symmetrically welded with a third limiting strip (2021) near the left and right sides. The third limiting strip (2021) is inserted into the second limiting groove (2011).

7. The precision mold positioning mechanism according to claim 1, characterized in that: The inner surface of the second sleeve (202) is treated with copper plating.

8. The precision mold positioning mechanism according to claim 1, characterized in that: The fixed mold (2) has a built-in groove (201) through its surface and a threaded rod (205) threadedly connected to the second sleeve (202).

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