High-precision filter element suction head shell mold

Abstract

The utility model discloses a high-precision filter element suction head shell mold, and particularly relates to the field of filter element suction head shell molds, the high-precision filter element suction head shell mold comprises a mold body, an upper mold, a lower mold and an injection molding hole, the mold body is composed of the upper mold and the lower mold, the injection molding hole is formed in the upper end face of the upper mold, and temperature adjusting mechanisms are arranged on the side end faces of the upper mold and the lower mold; exhaust holes are formed in the adjacent sides, provided with the temperature adjusting mechanisms, of the upper mold and the lower mold, and limiting guide mechanisms are arranged on the two sides of the upper mold and the lower mold. The mold opening and closing operation of the mold is facilitated through the design of the parting surface, uniform filling of plastic melt in the injection molding process can be guaranteed, meanwhile, the high-precision cavity and the high-precision core are used so that the precision of the filter element suction head shell can be guaranteed, efficient cooling media are adopted so that it can be guaranteed that the mold can be rapidly and uniformly cooled in the injection molding process, and the production efficiency is improved. The forming period is shortened, the product precision is improved, and the precise guide columns and guide grooves are adopted, so that effective guiding can be ensured in the mold opening and closing process.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter core suction head shell mould field, more specifically, the utility model relates to a kind of high-precision filter core suction head shell mould. BACKGROUND

[0002] Filter core suction head shell mould is a tool for manufacturing filter core suction head shell. Filter core suction head is usually used in laboratory equipment such as pipette, and the manufacture of its shell requires high-precision and high-quality mould. The design and manufacture of such mould need to consider the special shape and functional requirements of filter core suction head to ensure that the produced filter core suction head can meet the use requirements of laboratory;

[0003] As application No. CN202322232121.6 discloses a filter core suction head that can prevent overflow, solves the problem that when using the suction head to suck or discharge liquid sample, liquid may remain on the inner wall of the suction head outlet for a long time, and may condense into blocks after a long time, causing the suction head outlet to be blocked, affecting the normal sucking or discharging of the suction head; The mould for filter core suction head shell is an important matching tool for producing filter core suction head shell by injection molding machine. Different specifications and shapes of filter core suction head require corresponding moulds for forming. However, the design precision of the mould determines the size precision and shape complexity of the filter core suction head shell. There are burrs or protrusions at the edge of the filter core suction head shell, which need to be polished subsequently.

[0004] Therefore, a high-precision filter core suction head shell mould is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a high-precision filter core suction head shell mould to solve the problems raised in the above background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high-precision filter core suction head shell mould, comprising a mould body, an upper mould, a lower mould and an injection hole, the mould body is composed of the upper mould and the lower mould, and the upper end face of the upper mould is provided with an injection hole, the side end face of the upper mould and the lower mould is provided with a temperature adjusting mechanism, the adjacent side of the upper mould and the lower mould installed with the temperature adjusting mechanism is provided with an exhaust hole, and the two sides of the upper mould and the lower mould are provided with a limiting guide mechanism.

[0007] Preferably, the bottom end face of the upper mould and the upper end face of the lower mould are both provided with a cavity, and a core is placed inside the cavity.

[0008] Preferably, the temperature adjusting mechanism comprises a heat exchange copper pipe disc and a first conduit, the heat exchange copper pipe disc is attached to one side of the cavity of the upper die and the lower die, and both ends of the heat exchange copper pipe disc are connected with the first conduit, and the first conduit is connected with a second conduit.

[0009] Preferably, the limiting and guiding mechanism comprises a fixed block and a guiding column, the fixed block is installed on both sides of the upper die and the lower die, and the fixed block is provided with four groups, wherein the bottom end surface of two groups of the fixed block is provided with the guiding column, and the upper end surface of the other two groups of the fixed block is provided with a guiding groove.

[0010] Preferably, the upper die and the lower die in the die body are symmetrically arranged by using a parting surface, and the surface roughness Ra value of the opposite surfaces of the upper die and the lower die should be controlled within 0.8-1.6 μm.

[0011] Preferably, the size precision of the cavity and the core reaches ±0.01 mm, the surface of the core is provided with a demolding slope, and the demolding slope is 0.5°-1.5°.

[0012] Preferably, the gap of the guiding column and the guiding groove should be controlled within 0.01-0.03 mm, and the diameter of the guiding column is 16-32 mm.

[0013] Preferably, the upper die and the lower die in the die body are supported by P20 steel, and the fixed blocks are connected by the guiding column and the guiding groove to form a buckling structure.

[0014] Preferably, the second conduit is connected with the heat exchange copper pipe disc through the first conduit to form a communication structure, and the heat exchange copper pipe disc, the first conduit and the second conduit are all made of heat dissipation copper pipes.

[0015] The technical effects and advantages of the utility model are as follows:

[0016] Compared with the prior art, the high-precision filter head shell die can realize the effect of manufacturing a high-precision filter head shell through the above-mentioned structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 This is a three-dimensional structural diagram of the present invention.

[0018] Fig. 2 This is a schematic diagram of the orthographic structure of this utility model.

[0019] Fig. 3 This is a schematic diagram of the front section structure of the upper mold of this utility model.

[0020] Fig. 4 This is a top-section diagram of the upper mold structure of this utility model.

[0021] The attached figures are labeled as follows: 1. Mold body; 2. Upper mold; 3. Lower mold; 4. Injection hole; 5. Temperature regulation mechanism; 51. Heat exchange copper tube coil; 52. First guide tube; 53. Second guide tube; 6. Vent hole; 7. Limiting and guiding mechanism; 71. Fixing block; 72. Guide post; 73. Guide groove; 8. Cavity; 9. Core. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] As attached Figs. 1 to 4 The high-precision filter cartridge suction head housing mold shown includes a mold body 1, an upper mold 2, a lower mold 3, and an injection hole 4. The mold body 1 is composed of the upper mold 2 and the lower mold 3. The upper mold 2 has an injection hole 4 on its upper end face. The upper mold 2 and the lower mold 3 have temperature adjustment mechanisms 5 on their side end faces. The upper mold 2 and the lower mold 3 have vent holes 6 on their adjacent sides where the temperature adjustment mechanisms 5 are installed. The upper mold 2 and the lower mold 3 have limit guide mechanisms 7 on both sides. The upper mold 2 and the lower mold 3 in the mold body 1 are arranged symmetrically with parting surfaces. The surface roughness Ra value of the relative surfaces of the upper mold 2 and the lower mold 3 should be controlled within 0.8-1.6μm. The bottom end face of the upper mold 2 and the upper end face of the lower mold 3 are both provided with cavities 8. A core 9 is placed inside the cavity 8. The dimensional accuracy of the cavity 8 and the core 9 reaches ±0.01mm. The surface of the core 9 is provided with a demolding draft angle of 0.5°-1.5°.

[0025] The temperature adjusting mechanism 5 comprises a heat exchange copper pipe disc 51 and a first conduit 52, the heat exchange copper pipe disc 51 is installed on one side of the cavity 8 of the upper die 2 and the lower die 3, both ends of the heat exchange copper pipe disc 51 are connected with the first conduit 52, the first conduit 52 is connected with a second conduit 53, the second conduit 53 and the heat exchange copper pipe disc 51 form a communication structure through the first conduit 52, the heat exchange copper pipe disc 51, the first conduit 52 and the second conduit 53 are made of heat dissipation copper pipes, the limiting and guiding mechanism 7 comprises a fixed block 71 and a guiding column 72, the fixed block 71 is installed on both sides of the upper die 2 and the lower die 3, the fixed block 71 is provided with four groups, the bottom end surface of two groups of the fixed block 71 is provided with the guiding column 72, the upper end surface of the other two groups of the fixed block 71 is provided with a guiding groove 73, the gap between the guiding column 72 and the guiding groove 73 should be controlled within 0.01-0.03mm, the diameter of the guiding column 72 is 16-32mm, the upper die 2 and the lower die 3 in the die body 1 are supported by P20 steel, the fixed block 71 forms a buckling structure through the guiding column 72 and the guiding groove 73, a parting surface is designed, for the filter head shell with regular shape and axial symmetry, the horizontal parting surface is beneficial to the mold opening and closing operation, can ensure the uniform filling of the plastic melt in the injection molding process, high-precision cavity 8 and core 9 are used to ensure the precision of the filter head shell, and because the high-precision filter head shell has high requirements on size stability, efficient cooling medium is introduced to ensure that the mold can be quickly and uniformly cooled during injection molding, reduce the molding cycle and improve the product precision, and in order to ensure the accuracy and stability of the mold opening and closing, precise guiding column 72 and guiding groove 73 are used to ensure effective guidance during mold opening and closing, and the effect of manufacturing high-precision filter head shell is realized.

[0026] The utility model discloses a working process as follows: the upper mould 2 and lower mould 3 in mould body 1 adopt the parting surface symmetry arrangement, and the opposite surface roughness Ra of upper mould 2 and lower mould 3 should control 0.8-1.6mu m, adopt the parting surface design, for the shape is more regular, has the filter core suction head shell of axial symmetry, through horizontal parting surface is favorable to the opening and closing of mould operation of mould, can guarantee the uniform filling of plastic melt in the injection moulding process, and the bottom end surface of upper mould 2 and the upper end surface of lower mould 3 are all excavated with cavity 8, and the inside of cavity 8 is placed with core 9, and the dimensional accuracy of cavity 8 and core 9 reaches ±0.01mm, and the surface of core 9 is provided with stripping slope, and the stripping slope is 0.5°-1.5°, and the heat exchange copper pipe disc 51, first conduit 52 and second conduit 53 all adopt the heat dissipation copper pipe to be made, adopt the import high -efficient cooling medium, ensure that the mould can cool down quickly and uniformly in the injection moulding process, reduce the forming cycle and improve product precision, and in order to guarantee the accuracy and stability of mould opening and closing, the clearance of guide column 72 and guide slot 73 should control 0.01-0.03mm, and the diameter of guide column 72 is 16-32mm, and the upper mould 2 and lower mould 3 in mould body 1 adopt P20 steel support, and the fixed block 71 is between through guide column 72 and guide slot 73 and constitutes the buckling structure, adopts the accurate guide column 72 and guide slot 73, to ensure that can effectively guide in the opening and closing process, realize the effect of manufacturing high-precision filter core suction head shell together, and use high-precision cavity 8 and core 9, to ensure the precision of filter core suction head shell, and because the high-precision filter core suction head shell is higher in size stability requirement, the upper mould 2 and lower mould 3 buckle, and through injection hole 4 pours the inside of upper mould 2 and lower mould 3 and pours plastics, and utilizes temperature adjusting mechanism 5 and exhaust hole 6 and promptly carries out the temperature of injection plastics and exhausts cooling, and then finally obtains high-precision filter core suction head shell.

Claims

1. A high-precision filter element suction head shell mold, comprising a mold body (1), an upper mold (2), a lower mold (3) and an injection hole (4), characterized in that: The mold body (1) is composed of an upper mold (2) and a lower mold (3), the upper end face of the upper mold (2) is provided with an injection hole (4), the side end faces of the upper mold (2) and the lower mold (3) are provided with a temperature adjusting mechanism (5), the adjacent sides of the upper mold (2) and the lower mold (3) provided with the temperature adjusting mechanism (5) are provided with an exhaust hole (6), and the two sides of the upper mold (2) and the lower mold (3) are provided with a limiting guide mechanism (7).

2. The high-precision filter element suction head shell mold according to claim 1, characterized in that: The bottom end face of the upper mold (2) and the upper end face of the lower mold (3) are both provided with a cavity (8), and a core (9) is placed inside the cavity (8).

3. The high-precision filter element suction head shell mold of claim 1, wherein: The temperature adjusting mechanism (5) comprises a heat exchange copper pipe disc (51) and a first pipe (52), the heat exchange copper pipe disc (51) is attached and installed on one side of the cavity (8) of the upper mold (2) and the lower mold (3), both ends of the heat exchange copper pipe disc (51) are connected with the first pipe (52), and the first pipe (52) is connected with a second pipe (53).

4. The high-precision filter element suction head shell mold of claim 1, wherein: The limiting guide mechanism (7) comprises a fixed block (71) and a guide column (72), the fixed block (71) is installed on the two sides of the upper mold (2) and the lower mold (3), and the fixed block (71) is provided with four groups, two groups of the bottom end faces of the fixed block (71) are provided with the guide column (72), and the upper end faces of the other two groups of the fixed block (71) are provided with a guide groove (73).

5. The high-precision filter element suction head shell mold of claim 1, wherein: The upper mold (2) and the lower mold (3) in the mold body (1) are symmetrically arranged by using a parting surface, and the surface roughness Ra value of the opposite surfaces of the upper mold (2) and the lower mold (3) should be controlled to be 0.8-1.6 μm.

6. The high-precision filter element suction head shell mold according to claim 2, characterized in that: The size precision of the cavity (8) and the core (9) reaches ±0.01 mm, the surface of the core (9) is provided with a demolding slope, and the demolding slope is 0.5°-1.5°.

7. The high-precision filter element suction head shell mold of claim 4, wherein: The gap of the guide column (72) and the guide groove (73) should be controlled to be 0.01-0.03 mm, and the diameter of the guide column (72) is 16-32 mm.

8. The high-precision filter element suction head shell mold of claim 4, wherein: The upper mold (2) and the lower mold (3) in the mold body (1) are supported by P20 steel, and the fixed blocks (71) are connected by the guide column (72) and the guide groove (73) to form a buckling structure.

9. The high-precision filter element suction head shell mold according to claim 3, characterized in that: The second pipe (53) is connected with the heat exchange copper pipe disc (51) through the first pipe (52) to form a communication structure, and the heat exchange copper pipe disc (51), the first pipe (52) and the second pipe (53) are all made of heat dissipation copper pipes.

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