Mould locking mechanism for injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, in particular to a mold locking mechanism for an injection molding machine. A mold locking mechanism for an injection molding machine comprises a fixed part, a locking part and an injection mold, the injection mold comprises a fixed mold and a movable mold, the locking part is in sliding connection with the fixed part, the outer end of the locking part is rotationally connected with the two sides of the injection mold, a rotating locking table is arranged on one side of the injection mold, and the locking table is arranged on the other side of the injection mold. The bottom surface of the locking table is provided with an arc-shaped clamping section and a clamping inclined surface which is inclined downwards, and the bottom surface of the clamping section is higher than the top of the injection mold. The injection mold is tensioned through the locking part, so that the fixed mold and the movable mold are efficiently extruded, then the injection mold is efficiently extruded and clamped through the locking table, the pressing effect on the injection mold is improved, and liquid leakage and product deformation are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a mold locking mechanism for injection molding machines. Background Art

[0002] Injection molding machines are the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. They are divided into vertical, horizontal, and all-electric types. Injection molding machines can heat plastics and apply high pressure to molten plastics to make them ejected and fill the mold cavity.

[0003] When the injection molding machine extrudes molten plastic, the two molds that are extruding each other need to be fixed by a clamping component. However, since the clamping component has a limited fixing position for the mold, some contact surfaces of the two molds that are extruding each other may have poor clamping effects, causing leakage or deformation of the edge of the molten plastic, affecting the qualified rate of the injection molded products.

[0004] Therefore, the present application provides a clamping mechanism for an injection molding machine to solve the problem in the prior art that the clamping component has limited effect on fixing the mold. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a clamping mechanism for an injection molding machine.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a locking mechanism for an injection molding machine, comprising a fixed part, a locking part and an injection mold, the injection mold comprising a fixed mold and a movable mold, the locking part is slidably connected to the fixed part, the outer end of the locking part is rotatably connected to the two sides of the injection mold, a rotating locking platform is provided on one side of the injection mold, the bottom surface of the locking platform is provided with an arc-shaped snap-in section and a downwardly inclined snap-in slope, and the bottom surface of the snap-in section is higher than the top of the injection mold.

[0007] As an optimization, the movable mold is arranged on the upper side of the fixed mold, a plurality of first limiting magnets are provided on the outer side of the fixed mold, and a plurality of second limiting magnets are provided on the outer side of the movable mold, and the first limiting magnets and the second limiting magnets are arranged opposite to each other.

[0008] As an optimization, the locking part includes a locking motor and a locking bracket, and the output shaft of the locking motor is connected to a screw rod;

[0009] The locking bracket includes a connecting plate, an upper pull rod and a lower pull rod. The connecting plate is threadedly connected to the screw rod. The upper pull rod and the lower pull rod are rotatably connected to the connecting plate. The outer end of the upper pull rod is rotatably connected to the outer side of the movable mold, and the outer end of the lower pull rod is rotatably connected to the outer side of the fixed mold.

[0010] As an optimization, a rotating motor is connected to the bottom of the locking platform, and an output shaft of the rotating motor is fixedly connected to the bottom surface of the locking platform.

[0011] As an optimization, the lower portion of the engaging slope is lower than the top of the injection mold.

[0012] As an optimization, a connecting seat is provided on a side of the locking motor away from the locking bracket, the fixing part includes a fixing seat and a fixing rod vertical to the upper side of the fixing seat, and the connecting seat is slidably connected to the fixing rod.

[0013] As an optimization, two fixing parts and two locking parts are provided, and the two locking parts are relatively connected to two sides of the injection mold.

[0014] The present invention provides a clamping mechanism for an injection molding machine, which has the following advantages:

[0015] The present application tightens the injection mold through the locking part, so that the fixed mold and the movable mold are efficiently squeezed and clamped, and then the injection mold is efficiently squeezed and clamped through the locking platform, thereby improving the clamping effect of the injection mold and avoiding leakage and product deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 It is a schematic diagram of the axial side of the utility model.

[0017] Attached Figure 2 It is a main schematic diagram of the utility model.

[0018] Attached Figure 3 It is a top view schematic diagram of the utility model.

[0019] Attached Figure 4 This is a schematic diagram of the locking platform structure of the utility model.

[0020] Among them, 1. fixed mold, 2. movable mold, 3. locking platform, 4. clamping section, 5. clamping slope, 6. first limiting magnet, 7. second limiting magnet, 8. locking motor, 9. connecting plate, 10. upper pull rod, 11. lower pull rod, 12. rotating motor, 13. connecting seat, 14. fixing rod, 15. fixing seat. DETAILED DESCRIPTION

[0021] like Figure 1-4 As shown, a locking mechanism for an injection molding machine includes a fixed part, a locking part and an injection mold, the injection mold includes a fixed mold 1 and a movable mold 2, the locking part is slidably connected to the fixed part, the outer end of the locking part is rotatably connected to the two sides of the injection mold, a rotating locking platform 3 is provided on one side of the injection mold, the bottom surface of the locking platform 3 is provided with an arc-shaped snap-in section 4 and a downwardly inclined snap-in slope 5, and the bottom surface of the snap-in section 4 is higher than the top of the injection mold.

[0022] There is a smooth transition between the snap-in section 4 and the clamping inclined surface 5 , and the bottom surface of the snap-in section 4 gradually decreases from the outside toward the direction approaching the clamping inclined surface 5 .

[0023] like Figure 1 As shown, the movable mold 2 is arranged on the upper side of the fixed mold 1, a plurality of first limiting magnets 6 are arranged on the outer side of the fixed mold 1, and a plurality of second limiting magnets 7 are arranged on the outer side of the movable mold 2, and the first limiting magnets 6 and the second limiting magnets 7 are arranged opposite to each other.

[0024] The first limiting magnet 6 and the second limiting magnet 7 can be permanent magnets or electromagnets.

[0025] like Figure 2 and Figure 4 As shown, the locking part includes a locking motor 8 and a locking bracket, and the output shaft of the locking motor 8 is connected to a screw;

[0026] The locking bracket includes a connecting plate 9, an upper pull rod 10 and a lower pull rod 11. The connecting plate 9 is threadedly connected to the screw. The upper pull rod 10 and the lower pull rod 11 are rotatably connected to the connecting plate 9. The outer end of the upper pull rod 10 is rotatably connected to the outer side of the movable mold 2, and the outer end of the lower pull rod 11 is rotatably connected to the outer side of the fixed mold 1.

[0027] When the locking bracket moves away from the injection mold, the movable mold 2 and the fixed mold 1 can be pressed tightly.

[0028] like Figure 4 As shown, a rotary motor 12 is connected to the bottom of the locking platform 3 , and an output shaft of the rotary motor 12 is fixedly connected to the bottom surface of the locking platform 3 .

[0029] The lower portion of the snap-in slope is lower than the top of the injection mold.

[0030] like Figure 2 As shown, a connecting seat 13 is provided on the side of the locking motor 8 away from the locking bracket, and the fixing part includes a fixing seat 15 and a fixing rod 14 vertical to the upper side of the fixing seat 15 , and the connecting seat 13 is slidably connected to the fixing rod 14 .

[0031] When the locking motor 8 moves outward or inward, the locking motor 8 will move upward or downward, and the lifting and lowering of the locking motor 8 is guided by the fixing rod 14 .

[0032] The fixing part and the locking part are both provided with two, and the two locking parts are connected to two sides of the injection mold relatively.

[0033] When the device is used, after the fixed mold 1 and the movable mold 2 are buckled together, the fixed mold 1 and the movable mold 2 are quickly positioned by the first limiting magnet 6 and the second limiting magnet 7;

[0034] By locking the motor 8 to operate, the connecting plate 9 moves outward along the direction of the screw, tightening the movable mold 2 and the fixed mold 1;

[0035] The locking platform 3 is rotated to the upper side of the movable mold 2 by operating the rotary motor 12 , and the movable mold 2 is gradually pressed downward by the clamping slope 5 through the guidance of the clamping section 4 .

[0036] The above-mentioned specific implementation is only a specific case of the present utility model. The patent protection scope of the present utility model includes but is not limited to the product form and style of the above-mentioned specific implementation. Any appropriate changes or modifications made to the clamping mechanism for an injection molding machine that conforms to the claims of the present utility model and made by any ordinary technician in the corresponding technical field shall fall within the patent protection scope of the present utility model.

Claims

1. A clamping mechanism for an injection molding machine, characterized in that: The invention comprises a fixed part, a locking part and an injection mold, wherein the injection mold comprises a fixed mold (1) and a movable mold (2), wherein the locking part is slidably connected to the fixed part, and the outer end of the locking part is rotatably connected to the two sides of the injection mold, and a rotatable locking platform (3) is provided on one side of the injection mold, and the bottom surface of the locking platform (3) is provided with an arc-shaped snap-in section (4) and a downwardly inclined snap-in slope (5), and the bottom surface of the snap-in section (4) is higher than the top of the injection mold.

2. A clamping mechanism for an injection molding machine according to claim 1, characterized in that: The movable mold (2) is arranged on the upper side of the fixed mold (1), a plurality of first limiting magnets (6) are arranged on the outer side of the fixed mold (1), and a plurality of second limiting magnets (7) are arranged on the outer side of the movable mold (2), and the first limiting magnets (6) and the second limiting magnets (7) are arranged opposite to each other.

3. The clamping mechanism for an injection molding machine according to claim 1, characterized in that: The locking part comprises a locking motor (8) and a locking bracket, and the output shaft of the locking motor (8) is connected to a screw rod; The locking bracket includes a connecting plate (9), an upper pull rod (10) and a lower pull rod (11); the connecting plate (9) is threadedly connected to the screw rod; the upper pull rod (10) and the lower pull rod (11) are rotatably connected to the connecting plate (9); the outer end of the upper pull rod (10) is rotatably connected to the outer side of the movable mold (2); and the outer end of the lower pull rod (11) is rotatably connected to the outer side of the fixed mold (1).

4. The mold clamping mechanism for an injection molding machine according to claim 1, characterized in that: The bottom of the locking platform (3) is connected to a rotating motor (12), and the output shaft of the rotating motor (12) is fixedly connected to the bottom surface of the locking platform (3).

5. The mold clamping mechanism for an injection molding machine according to claim 1, characterized in that: The lower portion of the snap-in slope is lower than the top of the injection mold.

6. The clamping mechanism for an injection molding machine according to claim 3, characterized in that: A connecting seat (13) is provided on a side of the locking motor (8) away from the locking bracket, and the fixing part comprises a fixing seat (15) and a fixing rod (14) vertically disposed on the upper side of the fixing seat (15), and the connecting seat (13) is slidably connected to the fixing rod (14).

7. The mold clamping mechanism for an injection molding machine according to claim 1, characterized in that: The fixing part and the locking part are both provided with two, and the two locking parts are connected to two sides of the injection mold relatively.

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