CN218053710U - Automatic injection mold of drawing of patterns - Google Patents

Abstract

The utility model relates to the field of injection molds, in particular to an injection mold for automatic demoulding, comprising a telescopic pull plate, the top of the telescopic pull plate is fixedly connected with a lower mold cover, and the middle position of the top of the lower mold cover is provided with a A mold cavity, the bottom of the lower mold cavity is symmetrically provided with a groove, the inside of the groove is overlapped with a top block, and the middle part of the lower mold sleeve is provided with a movable groove, and the inner top surface of the movable groove is symmetrical A slide bar is fixedly connected, and a compression spring is movably sleeved on the upper part of the slide bar. When the lower mold sleeve is separated from the upper mold by the telescopic pull plate, the L-shaped tie rod moves with the pressure plate, so that the pressure plate presses against the two ejector rods to eject the injection molded part inside the lower mold cavity, which can quickly realize automatic film removal and lift Work efficiency: After the lower die set is separated from the upper die set, the push rod releases the pressure on the side plate of the lower die. At this time, the return spring moves with the corresponding lower die side plate to release the contact with the injection molded part, which is convenient for the injection molded part to be quickly It is easy to remove the film and has strong practicability.

Description

An injection mold for automatic demoulding

technical field

The utility model relates to the field of injection molds, in particular to an injection mold for automatic demoulding.

Background technique

With the rapid development of plastic materials, the strength and durability of automotive plastic parts have been greatly improved, and they are gradually replacing some metal parts. Automotive plastic parts are usually produced using injection molds. In order to form the concave cavity of automotive plastic parts , it is usually necessary to set a punch and a die in the injection mold, the punch and the die cooperate with each other, and after the mold is closed, the injection molding is performed to obtain the ideal plastic product;

Some existing injection molds are difficult to realize automatic stripping after injection molding, and operators need to manually strip the film, which is complicated to operate and reduces work efficiency. Parts adhere to the inner wall of the cavity, it is difficult to remove the film quickly, and the practicability is poor.

Utility model content

The purpose of this utility model is to provide an injection mold with automatic demoulding, so as to solve the problems raised in the above-mentioned background technology. In order to achieve the above object, the utility model provides the following technical solutions: an injection mold for automatic demoulding, including a telescopic pull plate, the top of the telescopic pull plate is fixedly connected with a lower mold cover, and the middle position of the top of the lower mold cover A lower mold cavity is provided, the bottom of the lower mold cavity is symmetrically provided with grooves, and a top block is overlapped inside the groove;

The middle part of the lower mold cover is provided with a movable groove, and the inner top surface of the movable groove is symmetrically fixedly connected with a slide bar, and the upper part of the slide bar is movably connected with a compression spring, and the lower part of the two slide bars A pressing plate is movably connected between them, and the top of the pressing plate is symmetrically and fixedly connected with a push rod, and the top of the push rod penetrates the movable groove and is fixedly connected with the bottom of the top block;

The inner top surface of the movable groove is symmetrically provided with a moving groove, and the inside of the moving groove is slidably connected with an L-shaped tie rod matched with the pressure plate, and the top of the lower mold sleeve is lapped with an upper mold sleeve, and the L The top of the type tie rod is fixedly connected with the bottom of the upper die sleeve;

Both sides of the bottom of the lower mold cavity are provided with chute symmetrically, and the inner wall of the chute is symmetrically fixedly connected with a support rod, and a lower mold side plate is movably connected between the two support rods, and the surface of the support rod A return spring is movablely connected, and a push rod is overlapped with a side wall of the side plate of the lower die, and the top of the push rod is fixedly connected to the bottom of the upper die sleeve.

Preferably, the top of the side plate of the lower mold is set as a slope, and the bottom of the push rod is set as an arc surface matched with the top of the side plate of the lower mold.

Preferably, the bottom of the top block is configured as a conical surface, and the diameter of the top block is the same as that of the groove.

Preferably, an injection molding machine is fixedly connected to the top of the upper mold case, and an upper mold cavity is opened in the middle of the bottom of the upper mold case.

Preferably, the lower part of the L-shaped tie rod overlaps with the bottom of the pressing plate.

Preferably, guide grooves are symmetrically opened on the top of the lower die sleeve, and guide rods are symmetrically and fixedly connected to the bottom of the upper die sleeve, and the two guide rods are respectively slidably connected inside the two guide grooves.

Compared with the prior art, the utility model has the beneficial effects:

In the utility model, through the cooperative use of components such as the pressing plate, ejector rod and L-shaped tie rod, when the lower mold cover is separated from the upper formwork by being pulled by the telescopic pulling plate, the L-shaped tie rod moves with the pressing plate, so that the pressing plate presses against the two tops. The rod ejects the injection molded parts inside the lower cavity, which can quickly realize automatic stripping and improve work efficiency.

In the utility model, through the cooperative use of parts such as the side plate of the lower die, the return spring and the push rod, after the lower die sleeve is separated from the upper die sleeve, the push rod releases the pressure on the side plate of the lower die. The corresponding side plate of the lower mold is moved to release the contact with the injection molded part, which is convenient for the quick release of the injection molded part and has strong practicability.

Description of drawings

Fig. 1 is the front sectional view of the overall structure of the utility model;

Fig. 2 is the enlarged view of the structure at A place in Fig. 1 of the utility model;

Fig. 3 is a top view of the position of the lower die sleeve of the present invention.

In the figure: 1. Telescopic drawing plate; 2. Lower mold cover; 3. Lower mold cavity; 4. Groove; 5. Top block; 6. Movable groove; 7. Slide bar; 10. Ejector; 11. Moving slot; 12. L-shaped tie rod; 13. Upper mold cover; 14. Chute; 15. Support rod; 16. Lower mold side plate; 17. Return spring; 18. Push rod.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1 to Fig. 3, the utility model provides a technical solution: an injection mold for automatic demoulding, including a telescopic pull plate 1, the top of the telescopic pull plate 1 is fixedly connected with a lower mold cover 2, and the telescopic pull plate 1 A hydraulic telescopic rod is fixedly connected with the lower mold case 2, a lower mold cavity 3 is provided at the middle position of the top of the lower mold case 2, and a groove 4 is symmetrically opened at the bottom of the lower mold chamber 3, and the inside of the groove 4 is overlapped with Top block 5.

The middle part of the lower mold cover 2 is provided with a movable groove 6, and the inner top surface of the movable groove 6 is symmetrically and fixedly connected with a slide bar 7, and the upper part of the slide bar 7 is movably sleeved with a compression spring 8, between the lower parts of the two slide bars 7 A pressing plate 9 is movably connected, and the top of the pressing plate 9 is symmetrically and fixedly connected with a push rod 10 , and the top of the push rod 10 runs through the movable groove 6 and is fixedly connected with the bottom of the top block 5 .

The inner top surface of the movable groove 6 is symmetrically provided with a moving groove 11, the inside of the moving groove 11 is slidably connected with an L-shaped tie rod 12 matched with the pressure plate 9, and the top of the lower mold casing 2 is lapped with an upper mold casing 13, L-shaped The top of the tie rod 12 is fixedly connected to the bottom of the upper mold cover 13, and the lower mold cover 2 is pulled by the telescopic pull plate 1 to move and separate from the upper mold cover 13. At this time, the L-shaped tie rod 12 moves with the pressure plate 9, so that the pressure plate 9 touches Press the two ejector pins 10 and the ejector block 5 to move down the mold cavity 3 to eject the injection molded parts inside the lower mold cavity 3, which can quickly realize automatic film removal and improve work efficiency.

Both sides of the bottom of the lower mold cavity 3 are symmetrically provided with chute 14, and the inner wall of the chute 14 is symmetrically fixedly connected with a support rod 15, and a lower mold side plate 16 is movably connected between the two support rods 15, and the surface of the support rod 15 is movable. Back-moving spring 17 is sleeved, and the side wall of lower die side plate 16 is overlapped with push rod 18, and the top of push rod 18 is fixedly connected to the bottom of upper die cover 13, and after lower die cover 2 is separated from upper die cover 13, push The rod 18 releases the pressure on the side plate 16 of the lower die. At this time, the return spring 17 slides on the surface of the support rod 15 with the side plate 16 of the corresponding die, so that the side plate 16 of the lower die releases the contact with the injection molded part, avoiding injection molding. The parts and the lower mold side plate 16 are adhered together, which is convenient for the quick release of the injection molded parts, and has strong practicability.

In the present embodiment, as shown in Fig. 1, Fig. 2 and Fig. 3, the top of the lower die side plate 16 is set as an inclined plane, the bottom of the push rod 18 is set as an arc surface matched with the lower die side plate 16 top, and the upper When the mold casing 13 and the lower mold casing 2 move relatively, the injection space of the lower mold can be formed between the lower mold cavity 3 and the lower mold cavity 3 by the push rod 18 pressing against the inclined surface of the lower mold side plate 16 .

In this embodiment, as shown in Figure 1 and Figure 3, the bottom of the top block 5 is set as a conical surface, the diameter of the top block 5 is the same as the diameter of the groove 4, and the thickness of the top block 5 is the same as the depth of the groove 4, The top block 5 of the conical surface is convenient to cooperate with the groove 4 for sealing.

In this embodiment, as shown in FIG. 1 , an injection molding machine is fixedly connected to the top of the upper mold case 13 , and an upper mold cavity is opened in the middle of the bottom of the upper mold case 13 .

In this embodiment, as shown in FIG. 1 , the lower part of the L-shaped tie rod 12 overlaps with the bottom of the pressing plate 9 .

In this embodiment, as shown in Figure 1 and Figure 3, the top of the lower mold cover 2 is symmetrically provided with guide grooves, and the bottom of the upper mold cover 13 is symmetrically fixedly connected with guide rods, and the two guide rods are slidably connected to the two guide rods respectively. Inside the groove, the stability during the movement of the lower die set 2 is improved by setting the guide rod and the guide groove.

The use method and advantages of the present utility model: the working process of the automatic demoulding injection mold is as follows:

As shown in Fig. 1, Fig. 2 and Fig. 3, the telescopic pull plate 1 pulls the lower die case 2 to move and separate from the upper die case 13. At this time, the L-shaped tie rod 12 moves with the pressure plate 9, so that the pressure plate 9 presses the two The ejector rod 10 and the ejector block 5 move to the inside of the lower mold cavity 3 to eject the injection molded parts inside the lower mold cavity 3, which can quickly realize automatic stripping and improve work efficiency; after the lower mold cover 2 and the upper mold cover 13 are separated , the push rod 18 releases the pressure on the side plate 16 of the lower die. At this time, the return spring 17 slides on the surface of the support rod 15 with the side plate 16 of the corresponding die, so that the side plate 16 of the lower die releases the contact with the injection molded part. Prevent the injection molded parts from adhering to the side plate 16 of the lower mold, facilitate the quick release of the injection molded parts, and have strong practicability.

The basic principles, main features and advantages of the present utility model have been shown and described above. Technical staff in this industry should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model, without departing from the utility model Under the premise of the new spirit and scope, the utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides an automatic injection mold of drawing of patterns, includes flexible arm-tie (1), its characterized in that: the top of the telescopic pull plate (1) is fixedly connected with a lower die sleeve (2), a lower die cavity (3) is formed in the middle of the top of the lower die sleeve (2), grooves (4) are symmetrically formed in the bottom of the lower die cavity (3), and a top block (5) is lapped inside each groove (4);

a movable groove (6) is formed in the middle of the lower die sleeve (2), sliding rods (7) are symmetrically and fixedly connected to the inner top surface of the movable groove (6), a compression spring (8) is movably sleeved on the upper portion of each sliding rod (7), a pressing plate (9) is movably connected between the lower portions of the two sliding rods (7), ejector rods (10) are symmetrically and fixedly connected to the top of each pressing plate (9), and the top of each ejector rod (10) penetrates through the movable groove (6) and is fixedly connected with the bottom of the ejector block (5);

the inner top surface of the movable groove (6) is symmetrically provided with movable grooves (11), the inner part of each movable groove (11) is connected with an L-shaped pull rod (12) matched with the pressing plate (9) in a sliding mode, the top of the lower die sleeve (2) is connected with an upper die sleeve (13) in a lap joint mode, and the top of each L-shaped pull rod (12) is fixedly connected with the bottom of the upper die sleeve (13);

spout (14) have been seted up to the bilateral symmetry of lower die cavity (3) bottom, the inner wall symmetry fixedly connected with bracing piece (15) of spout (14), two swing joint has lower mould curb plate (16) between bracing piece (15), reset spring (17) have been cup jointed in the surface activity of bracing piece (15), the lateral wall overlap joint of lower mould curb plate (16) has push rod (18), the top fixed connection of push rod (18) is in the bottom of last die sleeve (13).

2. The automatic demolding injection mold as claimed in claim 1, wherein: the top of the lower die side plate (16) is provided with an inclined surface, and the bottom of the push rod (18) is provided with an arc surface matched with the top of the lower die side plate (16).

3. The automatic demolding injection mold as claimed in claim 1, wherein: the bottom of the top block (5) is a conical surface, and the diameter of the top block (5) is the same as that of the groove (4).

4. The automatic demolding injection mold as claimed in claim 1, wherein: the top of the upper die sleeve (13) is fixedly connected with an injection molding machine, and an upper die cavity is formed in the middle of the bottom of the upper die sleeve (13).

5. The automatic demolding injection mold as claimed in claim 1, wherein: the lower part of the L-shaped pull rod (12) is overlapped with the bottom of the pressing plate (9).

6. The automatic demolding injection mold as claimed in claim 1, wherein: guide grooves are symmetrically formed in the top of the lower die sleeve (2), guide rods are symmetrically and fixedly connected to the bottom of the upper die sleeve (13), and the two guide rods are respectively connected to the insides of the two guide grooves in a sliding mode.

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