CN216267337U - Injection mold with force return mechanism - Google Patents

Abstract

The utility model discloses an injection mold with a forced return mechanism, and relates to the field of injection molds. The device comprises a return mechanism, a lower die box, an upper die box and a locking assembly, wherein the return mechanism comprises a lower fixing plate, four corners of the top end of the lower fixing plate are fixedly connected with guide columns, the top ends of the four guide columns are fixedly connected with an upper supporting plate, and the bottom end of the upper supporting plate is provided with four pull-back springs; the lower die box is fixedly connected to the top end of the lower fixing plate; the upper die box is fixedly connected to the bottom ends of the four pull-back springs; two sets of locking Assembly set up respectively in the both sides of lower mould box and last mould box, and the locking Assembly is including last locking piece and lower clamping piece. The utility model discloses a cooperation through return mechanism and locking Assembly accomplishes with this and goes up being connected and separating between mould box and the bed die box, then draws to open through return mechanism and goes up the mould box and take out the finished product of moulding plastics, like this can be more accurate when carrying out the drawing of patterns, the product quality who obtains also can be intact.

Description

Injection mold with force return mechanism

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection mold with a forced return mechanism.

Background

In some industrial production, the production process of some parts needs to be completed by the reverse-mold process of the injection mold, and there are many types of existing injection molds, one of which is to complete the molding by the combined extrusion of the upper mold box and the lower mold box.

The existing injection molds are formed by splicing an upper mold box and a lower mold box, the upper mold box and the lower mold box are separated by external force after injection molding is finished, so that a finished model product is taken out, but the existing mode of forcibly separating by the external force is not easy to control the magnitude and direction of force, and once deviation occurs, the product is possibly damaged if the deviation does not follow the set pouring direction of the model, so that the injection mold with the forced return mechanism is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model discloses an injection mold with a forced return mechanism, which aims to solve the problems in the background art.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: an injection mold with a positive return mechanism, comprising:

the return mechanism comprises a lower fixing plate, four corners of the top end of the lower fixing plate are fixedly connected with guide columns, the top ends of the four guide columns are fixedly connected with an upper supporting plate, and the bottom end of the upper supporting plate is provided with four pull-back springs;

the lower die box is fixedly connected to the top end of the lower fixing plate;

the upper die box is fixedly connected to the bottom ends of the four pull-back springs;

the locking assemblies are arranged on two sides of the lower die box and the upper die box respectively and comprise an upper locking block and a lower clamping block, and a control mechanism is arranged in the lower clamping block.

Preferably, the top of going up the backup pad has seted up the regulation screw, it has the extrusion screw to adjust the internal thread interlude of screw, the top fixedly connected with control carousel of extrusion screw.

Preferably, two guide sliding plates are fixedly connected to two sides of the upper die box, four bayonets are formed in one side of each guide sliding plate and are in sliding penetrating connection with four guide columns respectively, an injection molding hole is formed in the top end of the upper die box, and a sealing plug is embedded in the injection molding hole.

Preferably, the lower clamping and fixing block is fixedly connected to one side of the lower die box, the clamping and fixing groove is formed in the top end of the lower clamping and fixing block, and the control grooves are formed in the inner walls of the two sides of the clamping and fixing groove.

Preferably, a control spring is arranged in one of the control grooves, and one end of the other control groove penetrates through one side of the lower clamping block.

Preferably, control mechanism includes the card board, the card board slides and alternates to be connected in two control grooves, the card hole has been seted up on the top of card board, one side fixedly connected with control panel of card board.

Preferably, the upper locking block is fixedly connected to one side of the upper mold box, a locking rod is fixedly connected to the bottom end of the upper locking block, the locking rod is slidably inserted into the locking groove, and the bottom of the locking rod is inserted into the locking hole.

The utility model discloses an injection mold with a forced return mechanism, which has the following beneficial effects:

the utility model discloses a cooperation through return mechanism and locking Assembly accomplishes with this and goes up being connected and separating between mould box and the bed die box, control return mechanism transfers, after making last mould box and bed die box butt joint, can accomplish locking between them in the structure cooperation that utilizes the locking Assembly, after accomplishing the connection like this, mould plastics can, then draw through return mechanism and open the last mould box and take out the finished product of moulding plastics, like this through the pull-back control of same straight going, can be more accurate when carrying out the drawing of patterns like this, the product quality who obtains also can be intact.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of an upper mold box of the present invention;

FIG. 3 is a cross-sectional view of the locking assembly of the present invention;

fig. 4 is an enlarged view of the structure at a in fig. 3 according to the present invention.

In the figure: 1. a lower fixing plate; 2. a guide post; 3. an upper support plate; 4. extruding the screw; 401. a control dial; 5. a lower mold box; 6. an upper mold box; 601. a guide slide plate; 7. a pullback spring; 8. an upper locking block; 801. a locking lever; 9. a lower clamping block; 901. a control panel; 902. a clamping plate; 903. a locking hole; 10. the spring is controlled.

Detailed Description

The embodiment of the utility model discloses an injection mold with a forced return mechanism, which comprises the following components as shown in figures 1-4:

the device comprises a return mechanism, wherein the return mechanism comprises a lower fixing plate 1, four corners of the top end of the lower fixing plate 1 are fixedly connected with guide columns 2, the top ends of the four guide columns 2 are fixedly connected with an upper supporting plate 3, and the bottom end of the upper supporting plate 3 is provided with four pull-back springs 7;

the top end of the upper supporting plate 3 is provided with an adjusting screw hole, an extrusion screw rod 4 is inserted and connected in the adjusting screw hole, and the top end of the extrusion screw rod 4 is fixedly connected with a control turntable 401;

the lower die box 5 is fixedly connected to the top end of the lower fixing plate 1;

the upper die box 6 is fixedly connected to the bottom ends of the four pullback springs 7;

two sides of the upper die box 6 are fixedly connected with two guide sliding plates 601, one side of each of the four guide sliding plates 601 is provided with a bayonet, the four bayonets are respectively in sliding and penetrating connection with the four guide columns 2, the top end of the upper die box 6 is provided with an injection molding hole, and a sealing plug is embedded in the injection molding hole;

the two groups of locking assemblies are respectively arranged at two sides of the lower die box 5 and the upper die box 6, each locking assembly comprises an upper locking block 8 and a lower clamping block 9, and a control mechanism is arranged in each lower clamping block 9;

the control mechanism comprises a clamping plate 902, the clamping plate 902 is slidably inserted and connected in the two control grooves, a clamping hole 903 is formed in the top end of the clamping plate 902, and a control plate 901 is fixedly connected to one side of the clamping plate 902;

the lower clamping and fixing block 9 is fixedly connected to one side of the lower die box 5, the top end of the lower clamping and fixing block 9 is provided with a clamping and fixing groove, the inner walls of the two sides of the clamping and fixing groove are provided with control grooves, one control groove is internally provided with a control spring 10, and one end of the other control groove penetrates through one side of the lower clamping and fixing block 9;

the upper locking block 8 is fixedly connected to one side of the upper die box 6, the bottom end of the upper locking block 8 is fixedly connected with a locking rod 801, the locking rod 801 is connected in a sliding and penetrating mode in a locking groove, and the bottom portion of the locking rod is connected with the locking hole 903 in a penetrating mode.

The working principle is as follows: referring to fig. 1 to 4, in performing the pattern casting,

implementing the first step of operation, holding the control turntable 401 to rotate clockwise, moving the extrusion screw 4 downwards while rotating under the coordination of the threaded hole, and pressing the extrusion screw 4 downwards to the upper die box 6 in the process of moving downwards;

the upper die box 6 continuously moves downwards under extrusion, and meanwhile, the four pullback springs 7 are stretched (the four pullback springs 7 are always in an extension state under the action of downward force), when the upper die box 6 moves downwards, the four guide sliding plates 601 are driven to vertically move in cooperation with the four guide posts 2 until the upper die box 6 moves downwards to be close to the lower die box 5;

the locking rod 801 at the bottom end of the two upper locking blocks 8 is inserted downwards into the locking groove of the lower clamping block 9, after the bottom of the locking rod 801 contacts the locking plate 902, the locking rod 801 presses the inner wall of the locking hole 903 by using the radian of the bottom end, the locking plate 902 is pressed to move towards the direction close to the control spring 10 and presses the control spring 10, until the bottom of the locking rod 801 passes through the locking hole 903, the control spring 10 moves the locking plate 902 towards the direction far away from the locking plate by the restoring force, and then the bottom end of the locking plate 902 can be locked and connected with the lower clamping block 9 and the upper locking block 8.

And (5) implementing the second step of operation, pulling out the sealing plug at the top end of the upper die box 6, and pouring the raw materials through the pouring hole.

And implementing the third step of operation, standing for a period of time, rotating the control turntable 401 anticlockwise, driving the extrusion screw rod 4 to move upwards by the control turntable 401, continuously rotating anticlockwise until the bottom end of the extrusion screw rod 4 moves to the bottom end close to the upper supporting plate 3, and stopping rotating.

Performing the fourth operation, pressing the two operating plates 901 toward the lower clamping block 9, the two operating plates 901 pressing the two locking plates 902 to move toward the control spring 10, and simultaneously pressing the control spring 10, after the locking plates 902 move and align the locking holes 903 with the bottom of the locking lever 801;

the four pullback springs 7 draw the upper mold box 6 upwards through restoring force, the upper mold box 6 moves upwards to drive the two upper locking blocks 8 to move upwards, the two upper locking blocks 8 drive the two locking rods 801 to move upwards and slide out of the locking grooves, and at the moment, the locking of the upper mold box 6 and the lower mold box 5 is finished, so that the injection molding finished product can be completely taken out.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. An injection mold with a forced return mechanism, comprising:

the device comprises a return mechanism, wherein the return mechanism comprises a lower fixing plate (1), four corners of the top end of the lower fixing plate (1) are fixedly connected with guide columns (2), the top ends of the four guide columns (2) are fixedly connected with an upper supporting plate (3), and the bottom end of the upper supporting plate (3) is provided with four pull-back springs (7);

the lower die box (5) is fixedly connected to the top end of the lower fixing plate (1);

the upper die box (6) is fixedly connected to the bottom ends of the four pull-back springs (7);

the locking assembly is arranged on two sides of the lower die box (5) and the upper die box (6) respectively and comprises an upper locking block (8) and a lower clamping block (9), and a control mechanism is arranged in the lower clamping block (9).

2. An injection mold with a forced return mechanism as claimed in claim 1, wherein: the top of going up backup pad (3) has been seted up and has been adjusted the screw, it has extrusion screw (4) to adjust the screw internal thread interlude, the top fixedly connected with control carousel (401) of extrusion screw (4).

3. An injection mold with a forced return mechanism as claimed in claim 1, wherein: go up two direction slides (601) of equal fixedly connected with in both sides of mould box (6), four the bayonet socket has all been seted up to one of them side of direction slide (601), and four bayonet sockets are connected with four guide post (2) sliding interlude respectively, the hole of moulding plastics has been seted up on the top of going up mould box (6), the hole of moulding plastics is embedded to be equipped with to seal up and blocks up.

4. An injection mold with a forced return mechanism as claimed in claim 1, wherein: the lower clamping fixed block (9) is fixedly connected to one side of the lower die box (5), a clamping fixed groove is formed in the top end of the lower clamping fixed block (9), and control grooves are formed in the inner walls of the two sides of the clamping fixed groove.

5. An injection mold with a forced return mechanism as claimed in claim 4, wherein: one of the control grooves is internally provided with a control spring (10), and one end of the other control groove penetrates through one side of the lower clamping block (9).

6. An injection mold with a forced return mechanism as claimed in claim 1, wherein: the control mechanism comprises a clamping plate (902), the clamping plate (902) is connected in the two control grooves in a sliding and penetrating mode, a clamping hole (903) is formed in the top end of the clamping plate (902), and a control plate (901) is fixedly connected to one side of the clamping plate (902).

7. An injection mold with a forced return mechanism as claimed in claim 1, wherein: the upper locking block (8) is fixedly connected to one side of the upper die box (6), the bottom end of the upper locking block (8) is fixedly connected with a locking rod (801), the locking rod (801) is connected in the locking groove in a sliding and penetrating mode, and the bottom of the locking rod is connected with the locking hole (903) in a penetrating mode.

Images