CN221161378U - Injection mold with positioning mechanism - Google Patents

Abstract

The utility model relates to the technical field of injection molding, in particular to an injection mold with a positioning mechanism, which comprises a mold closing mechanism, a positioning ejection mechanism and a feeding mechanism, wherein the positioning ejection mechanism is arranged on the mold closing mechanism, and the feeding mechanism is arranged on the mold closing mechanism. The utility model overcomes the defects of the prior art, the first motor drives the first screw rod to rotate so as to enable the push plate to move up and down, the first motor adopts the stepping motor, the rotation number of the rotor and the rotation direction of the rotor can be controlled, namely the rotation direction and the number of turns of the first screw rod are controlled, so that the position of the push plate is controlled in a quantitative positioning mode, and the moving position of the thimble is controlled.

Description

Injection mold with positioning mechanism

Technical Field

The utility model relates to the technical field of injection molding, in particular to an injection molding mold with a positioning mechanism.

Background technique

A method of mixing completely molten plastic materials through a screw at a certain temperature, injecting them into a mold cavity with high pressure, and obtaining a molded product after cooling and solidification. This method is suitable for mass production of parts with complex shapes and is one of the important processing methods. Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding processing fields such as products with complex shapes.

Ejector pins are usually installed on injection molds to eject and demold the product after injection molding. The general ejector structure is relatively simple, and it is impossible to quantitatively locate and control the ejection distance, so the scope of application is relatively narrow.

Utility Model Content

In view of the deficiencies in the prior art, the utility model provides an injection mold with a positioning mechanism, which overcomes the deficiencies in the prior art and aims to solve the problem that a general injection mold is installed with an ejector pin for ejecting and demolding the product after injection molding, the general ejector structure is relatively simple, the ejection distance cannot be quantitatively positioned and controlled, and the application range is relatively narrow.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold with a positioning mechanism, comprising a mold clamping mechanism, a positioning ejection mechanism and a feeding mechanism, wherein the positioning ejection mechanism is installed on the mold clamping mechanism, and the feeding mechanism is installed on the mold clamping mechanism;

The mold clamping mechanism includes a base, a column, a top seat, a cylinder, a push frame plate, a connecting rod, a push plate and an upper mold, the column is fixedly connected to the top of the base, the top seat is welded to the outer top of the column, the cylinder is installed at the top center of the top seat by bolts, the push frame plate is welded to the output shaft of the cylinder, the push frame plate is slidably connected to the column, the connecting rod is welded to the bottom of the push frame plate, the bottom end of the connecting rod is welded to the push plate, the push plate is slidably connected to the column, and the upper mold is installed at the bottom of the push plate;

The positioning and ejection mechanism includes a fixed seat, a first motor, a first screw rod, a push plate, a push plate and a push pin. The fixed seat is fixedly connected to the top of the base, the first motor is installed inside the fixed seat by bolts, the first screw rod is welded to the output shaft of the first motor, the push plate is fixedly connected to the top of the fixed seat, the top plate is rotatably connected to the first screw rod, the push plate is slidably connected to the inner side wall of the fixed seat, the push pin is installed on the top of the push plate, and the push plate is threadedly connected to the first screw rod.

As a preferred technical solution of the utility model, a guide rod is welded on the top of the base, the top end of the guide rod passes through the push plate and is slidably connected to the push plate, and the top end of the guide rod is welded to the top plate.

As a preferred technical solution of the utility model, the feeding mechanism includes a heating shell, a vertical rod, a fixed plate, a second motor, a second screw rod, a feeding plate, a third motor and an injection molding screw. The heating shell is installed on the pushing plate. The number of the vertical rods is three. The three vertical rods are welded to the top of the heating shell. The fixed plate is welded to the top of the vertical rod. The second motor is installed on the top of the fixed plate. The output shaft of the second motor passes through the fixed plate. The output shaft of the second motor is welded to the top of the second screw rod. The feeding plate is threadedly connected to the second screw rod. The third motor is installed at the bottom of the feeding plate. The bottom output shaft of the third motor is welded to the injection molding screw, and the injection molding screw is slidably connected to the heating shell.

As a preferred technical solution of the utility model, the bottom end of the heating shell is connected to the pushing plate, and the bottom end of the heating shell is connected to the upper mold through the pushing plate.

As a preferred technical solution of the utility model, a barrel is installed on the top of the top seat, and the bottom end of the barrel is connected to the heating shell through a hose.

As a preferred technical solution of the utility model, a spiral heating copper coil is installed in the heating shell, and a lower mold is installed on the top of the fixing seat.

Compared with the prior art, the beneficial effects of the utility model are:

The first motor drives the first screw rod to rotate, so that the push plate moves up and down. The first motor of the utility model adopts a stepping motor, which can control the number of rotations of the rotor and the rotation direction of the rotor, that is, control the rotation direction and number of the first screw rod, so as to quantitatively control the position of the push plate, and then control the moving position of the ejector pin. At the same time, a plurality of array-distributed threaded rods are also installed on the push plate of the utility model, and the ejector pin is installed on the threaded rod through the bottom threaded hole. Therefore, the position of the ejector pin can be selected and adjusted according to different molds, and can be adapted to different molds, with a wide range of applications.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a perspective view of the utility model;

Fig. 2 is a schematic diagram of the structure of the utility model;

FIG3 is an enlarged schematic diagram of the structure of area A in FIG2 of the present utility model;

FIG. 4 is an enlarged schematic diagram of the structure of area B in FIG. 2 of the present invention.

In the figure: 11, base; 12, column; 13, top seat; 14, cylinder; 15, push frame plate; 16, connecting rod; 17, push plate; 18, upper mold; 19, lower mold; 21, fixed seat; 22, first motor; 23, first screw rod; 24, top plate; 25, push plate; 26, ejector pin; 27, guide rod; 31, heating shell; 32, column; 33, fixed plate; 34, second motor; 35, second screw rod; 36, feeding plate; 37, third motor; 38, injection screw; 39, barrel.

Detailed ways

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.

Please refer to Figures 1-4, an injection mold with a positioning mechanism includes a clamping mechanism, a positioning ejection mechanism and a feeding mechanism, the positioning ejection mechanism is installed on the clamping mechanism, and the feeding mechanism is installed on the clamping mechanism; the clamping mechanism is the basic pushing clamping structure of the injection mold, which is used to merge the upper mold 18 and the lower mold 19, the positioning ejection structure is used to push the ejector pin 26 with quantitative positioning, so that it can set the ejection distance according to the needs of the specific situation, and can be adapted to a variety of molds, and the feeding mechanism is used to push the raw material so that the raw material is injected into the clamping mold of the upper mold 18 and the lower mold 19.

1 and 2, the mold clamping mechanism includes a base 11, a column 12, a top seat 13, a cylinder 14, a push frame plate 15, a connecting rod 16, a push plate 17 and an upper mold 18. The column 12 is fixedly connected to the top of the base 11, the top seat 13 is welded to the outer top of the column 12, the cylinder 14 is installed at the top center of the top seat 13 by bolts, the push frame plate 15 is welded to the output shaft of the cylinder 14, the output shaft of the cylinder 14 passes through the top seat 13 and is slidably connected to the top seat 13, and the cylinder 14 pushes the push frame plate 15 through the output shaft The pushing frame plate 15 is a square frame plate that moves up and down, and is hollow in the middle to facilitate the passage of the feeding hose. The pushing frame plate 15 is slidably connected to the column 12, and the connecting rod 16 is welded to the bottom of the pushing frame plate 15. The bottom end of the connecting rod 16 is welded to the pushing plate 17, and the pushing plate 17 is slidably connected to the column 12. The upper mold 18 is installed at the bottom of the pushing plate 17; when the pushing frame plate 15 moves, it will drive the connecting rod 16 and the pushing plate 17 to move, and then drag the feeding mechanism and the upper mold 18 to move, so that the upper mold 18 and the lower mold 19 are merged.

2-4, the positioning and ejection mechanism includes a fixed seat 21, a first motor 22, a first screw rod 23, a push plate 24, a push plate 25 and a push pin 26. The fixed seat 21 is fixedly connected to the top of the base 11, and an inner cavity is opened in the fixed seat 21. The first motor 22, the first screw rod 23 and the push plate 25 are all arranged in the inner cavity of the fixed seat 21. The first motor 22 is installed inside the fixed seat 21 by bolts. The first screw rod 23 is welded to the output shaft of the first motor 22. The push plate 24 is fixedly connected to the top of the fixed seat 21. The top plate 24 is rotatably connected to the first screw rod 23. The push plate 25 is slidably connected to the inner side wall of the fixed seat 21. The push pin 26 is installed on the top of the push plate 25. The push plate 25 is threadedly connected to the first screw rod 23. The first screw rod 23 and the top plate 24 are connected by a bearing. The first motor 22 drives the first screw rod 23 to rotate, thereby causing the push plate 25 to move up and down. The first motor 22 of the utility model adopts a stepping motor, which can control the number of rotations of the rotor and the rotation direction of the rotor, that is, control the rotation direction and number of the first screw rod 23, so as to quantitatively control the position of the push plate 25, and then control the moving position of the ejector pin 26. At the same time, a plurality of array-distributed threaded rods are also installed on the push plate 25 of the utility model, and the ejector pin 26 is installed on the threaded rod through the bottom threaded hole. Therefore, the position of the ejector pin 26 can be selected and adjusted according to different molds, and can be adapted to different molds, with a wide range of applications.

Specifically, referring to Fig. 3, a guide rod 27 is welded to the top of the base 11, the top end of the guide rod 27 penetrates the push plate 25 and is slidably connected to the push plate 25, and the top end of the guide rod 27 is welded to the top plate 24. The guide rod 27 is used to guide the push plate 25 to move up and down.

Specifically, please refer to Figure 4. The feeding mechanism includes a heating shell 31, a vertical rod 32, a fixed plate 33, a second motor 34, a second screw rod 35, a feeding plate 36, a third motor 37 and an injection molding screw 38. The heating shell 31 is installed on the pushing plate 17. There are three vertical rods 32. The three vertical rods 32 are all welded to the top of the heating shell 31. The fixed plate 33 is welded to the top of the vertical rod 32. The second motor 34 is installed on the top of the fixed plate 33. The output shaft of the second motor 34 passes through the fixed plate 33. The output shaft of the second motor 34 is welded to the top of the second screw rod 35. The feeding plate 36 is threadedly connected to the second screw rod 35. The third motor 37 is installed at the bottom of the feeding plate 36. The bottom output shaft of the third motor 37 is welded to the injection molding screw 38, and the injection molding screw 38 is slidably connected to the heating shell 31. When the second motor 34 is started, the second screw rod 35 is driven to rotate, thereby adjusting the position of the feeding plate 36, driving the third motor 37 and the injection screw rod 38 to move and push the injection molding material. The third motor 37 drives the injection screw rod 38 to rotate and assists in pushing the injection molding material.

Specifically, please refer to FIG. 4 , the bottom end of the heating shell 31 is connected to the push plate 17 , and the bottom end of the heating shell 31 is connected to the upper mold 18 through the push plate 17 .

Specifically, please refer to FIG. 2 , a barrel 39 is installed on the top of the top seat 13, and the bottom end of the barrel 39 is connected to the heating shell 31 through a hose. The injection molding material in the barrel 39 is fed into the heating shell 31 through the hose.

Specifically, referring to Fig. 4, a spiral heating copper coil is installed in the heating shell 31, and a lower mold 19 is installed on the top of the fixing seat 21. The spiral heating copper coil is used to heat the injection molding material in the heating shell 31 to melt the injection molding material.

Working principle: The first motor 22 drives the first screw 23 to rotate, thereby causing the push plate 25 to move up and down. The first motor 22 of the utility model adopts a stepping motor, which can control the number of rotations of the rotor and the direction of rotation of the rotor, that is, control the rotation direction and number of the first screw 23, so as to quantitatively control the position of the push plate 25, and then control the moving position of the ejector 26. At the same time, the push plate 25 of the utility model is also equipped with a plurality of array-distributed threaded rods, and the ejector 26 is installed on the threaded rod through the bottom threaded hole, so that the position of the ejector 26 can be selected and adjusted according to different molds, and different molds can be adapted, with a wide range of applications. The second motor 34 starts to drive the second screw 35 to rotate, thereby adjusting the position of the feed plate 36, driving the third motor 37 and the injection screw 38 to move, and push the injection molding raw materials. The third motor 37 drives the injection screw 38 to rotate, and assists in pushing the injection molding raw materials.

Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

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.

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 (6)

1. Injection mold with positioning mechanism, including locking mechanism, location ejection mechanism and feeding mechanism, its characterized in that: the positioning ejection mechanism is arranged on the die clamping mechanism, and the feeding mechanism is arranged on the die clamping mechanism;

The die assembly mechanism comprises a base (11), a stand column (12), a top seat (13), an air cylinder (14), a pushing frame plate (15), a connecting rod (16), a pushing plate (17) and an upper die (18), wherein the stand column (12) is fixedly connected to the top of the base (11), the top seat (13) is welded to the outer top of the stand column (12), the air cylinder (14) is mounted at the center of the top seat (13) through bolts, the pushing frame plate (15) is welded with an output shaft of the air cylinder (14), the pushing frame plate (15) is connected to the stand column (12) in a sliding mode, the connecting rod (16) is welded with the bottom of the pushing frame plate (15), the bottom end of the connecting rod (16) is welded with the pushing plate (17), the pushing plate (17) is connected to the stand column (12) in a sliding mode, and the upper die (18) is mounted at the bottom of the pushing plate (17);

The positioning ejection mechanism comprises a fixed seat (21), a first motor (22), a first screw rod (23), a top plate (24), a push plate (25) and a thimble (26), wherein the fixed seat (21) is fixedly connected to the top of the base (11), the first motor (22) is mounted in the fixed seat (21) through bolts, the first screw rod (23) is welded with an output shaft of the first motor (22), the top plate (24) is fixedly connected to the top of the fixed seat (21), the top plate (24) is rotatably connected with the first screw rod (23), the push plate (25) is slidably connected to the inner side wall of the fixed seat (21), and the thimble (26) is mounted on the top of the push plate (25) and is in threaded connection with the first screw rod (23).

2. An injection mold with a positioning mechanism as claimed in claim 1, wherein: the top of base (11) welding has guide arm (27), the top of guide arm (27) run through push pedal (25) and with push pedal (25) sliding connection, the top of guide arm (27) with roof (24) welding mutually.

3. An injection mold with a positioning mechanism as claimed in claim 1, wherein: the feeding mechanism comprises a heating shell (31), vertical rods (32), a fixing plate (33), a second motor (34), a second screw rod (35), a feeding plate (36), a third motor (37) and an injection molding screw rod (38), wherein the heating shell (31) is installed on the pushing plate (17), the number of the vertical rods (32) is three, the vertical rods (32) are welded to the top of the heating shell (31), the fixing plate (33) is welded to the top of the vertical rods (32), the second motor (34) is installed on the top of the fixing plate (33), an output shaft of the second motor (34) penetrates through the fixing plate (33), an output shaft of the second motor (34) is welded to the top of the second screw rod (35), the feeding plate (36) is in threaded connection with the second screw rod (35), the third motor (37) is installed on the bottom of the feeding plate (36), and the output shaft of the third motor (37) is welded to the top of the injection molding shell (32).

4. An injection mold with a positioning mechanism as claimed in claim 3, wherein: the bottom end of the heating shell (31) is communicated with the pushing plate (17), and the bottom end of the heating shell (31) is communicated with the upper die (18) through the pushing plate (17).

5. An injection mold with a positioning mechanism as claimed in claim 3, wherein: the top of the top seat (13) is provided with a charging barrel (39), and the bottom end of the charging barrel (39) is communicated with the heating shell (31) through a hose.

6. An injection mold with a positioning mechanism as claimed in claim 3, wherein: a spiral heating copper coil is arranged in the heating shell (31), and a lower die (19) is arranged at the top of the fixing seat (21).