CN213533632U

CN213533632U - High-efficient environmental protection plastics tableware injection mold

Info

Publication number: CN213533632U
Application number: CN202021731777.2U
Authority: CN
Inventors: 石小华
Original assignee: Wuhan Aitemake Precision Molding Co ltd
Current assignee: Wuhan Aitemake Precision Molding Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-06-25
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses a high-efficient environmental protection plastics tableware injection mold belongs to the injection mold field. A high-efficiency environment-friendly plastic tableware injection mold comprises a movable mold and a fixed mold, wherein the movable mold is arranged below the fixed mold, a plurality of plate bodies are arranged on the upper end surface of the fixed mold, a hinge part is fixedly arranged in the middle of the upper end surface of the fixed mold, the plurality of plate bodies are arranged around the hinge part, the plurality of plate bodies are jointed to form a mold cavity, and the mold cavity is matched with the movable mold; the lower ends of the plate bodies are hinged with the hinged parts; a sliding table is arranged on one side, away from the hinged part, of each plate body, and the plate bodies abut against the corresponding sliding tables; a plurality of sliding grooves are formed in the upper end face of the fixed die, the sliding grooves correspond to the sliding tables one by one, and the sliding grooves are arranged around the hinge portion in an annular array; the lower end of the sliding groove is downward formed into an extending part which extends into the sliding groove.

Description

High-efficient environmental protection plastics tableware injection mold

Technical Field

The utility model relates to an injection mold field, concretely relates to high-efficient environmental protection plastics tableware injection mold.

Background

Plastic injection molding is a common method for molding plastic products, and comprises the main steps of injecting molten plastic into a plastic product mold by using pressure, and cooling and molding to obtain various plastic parts. There are mechanical injection molding machines that are specifically used for injection molding. The plastic most commonly used today is polystyrene.

In the preparation of some plastic tableware, the shapes of some tableware are various, so that some tableware with complex curved surfaces and large-angle inclined edges are difficult to demould. Most of the existing auxiliary demoulding devices assist demoulding by supporting the bottom surface of a product. However, for some products with fragile side walls, when the side walls are in an interference fit with the mold by only lifting the bottom surface, the force applied from the bottom of the product can cause the product to be damaged.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a high-efficient environmental protection plastics tableware injection mold.

The purpose of the utility model can be realized by the following technical scheme:

a high-efficiency environment-friendly plastic tableware injection mold comprises a movable mold and a fixed mold, wherein the movable mold is arranged below the fixed mold, a plurality of plate bodies are arranged on the upper end surface of the fixed mold, a hinge part is fixedly arranged in the middle of the upper end surface of the fixed mold, the plurality of plate bodies are arranged around the hinge part, the plurality of plate bodies are connected to form a mold cavity, and the mold cavity is matched with the movable mold; the lower ends of the plate bodies are hinged with the hinged parts;

a sliding table is arranged on one side, away from the hinged part, of each plate body, and the plate bodies abut against the corresponding sliding tables; a plurality of sliding grooves are formed in the upper end face of the fixed die, the sliding grooves correspond to the sliding tables one by one, and the sliding grooves are arranged around the hinge portion in an annular array; the lower end of the sliding chute downwards forms an extension part which extends into the sliding chute and is connected with the sliding chute in a sliding way; and a screw rod is arranged in each sliding groove, one end of the screw rod, which is close to the hinge part, is rotatably connected with the fixed die, and the other end of the screw rod penetrates through the extension part and is in threaded connection with the extension part.

Furthermore, a horizontal counter bore is formed in the fixed die and extends to the position below the hinge portion, a through groove is formed in the middle of the hinge portion and penetrates through the counter bore, a rotating shaft is rotatably connected in the counter bore, and a cam is fixedly sleeved on the rotating shaft; and an ejecting block is arranged in the through groove, and the lower end of the ejecting block is abutted against the surface of the cam.

Furthermore, the fixed die is provided with a guide rod, the movable die is provided with a plurality of through holes, the through holes correspond to the guide rods one to one, and the through holes are matched with the guide rods.

Furthermore, the fixed die and the upper end of the plate body are both fixedly provided with elastic pieces.

Further, a handle is fixedly installed at one end, far away from the hinged portion, of the screw rod.

Furthermore, the guide rod is sleeved with an elastic piece.

Further, a spring is arranged below the top block, one end of the spring is abutted against the lower end of the top block, and the other end of the spring is fixedly connected to the inner wall of the through groove.

Furthermore, a vertical pin hole is formed in the top block, a clamping pin is arranged in the pin hole, the clamping pin is detachably matched in the pin hole, the upper end of the clamping pin extends to the outside of the pin hole, an end cover is fixedly arranged at the upper end of the clamping pin, a vent hole penetrating through the through groove is formed in the top block, and the clamping pin is clamped with the pin hole, and the end cover covers the vent hole.

The utility model has the advantages that:

in the actual working process, the fixed die and the movable die are closed to inject raw materials, and then the die is opened. In this process, the plurality of plates are always held together to maintain a complete mold cavity. When finishing moulding plastics, can the operator rotate the screw rod, drive the slip table and press the spout and slide for the slip table is kept away from articulated portion. The plate body will open along with the removal of slip table like this, and in case the plate body opens, the lateral wall of injection moulding's product will tentatively separate with the inner wall of plate body, prevents to glue even, takes out the product from the die cavity more easily.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic perspective view of an injection mold according to the present application;

FIG. 2 is a partial cross-sectional view of a front view of the injection mold of the present application;

fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

The parts corresponding to the reference numerals in the figures are as follows:

1. fixing a mold; 2. a cam; 3. a rotating shaft; 4. a screw; 5. a hinge portion; 6. a plate body; 7. a sliding table; 8. A chute; 9. a top block; 10. an end cap; 11. a bayonet lock; 12. and (4) air holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

As shown in fig. 1 to 3, the injection mold for efficient and environment-friendly plastic tableware comprises a movable mold and a fixed mold 1, wherein the movable mold is arranged below the fixed mold 1, a plurality of plate bodies 6 are arranged on the upper end surface of the fixed mold 1, a hinge part 5 is fixedly arranged in the middle of the upper end surface of the fixed mold 1, the plurality of plate bodies 6 are arranged around the hinge part 5, the plurality of plate bodies 6 are combined to form a mold cavity, and the mold cavity is matched with the movable mold; the lower ends of the plurality of plate bodies 6 are hinged with the hinge parts 5.

One side of each plate body 6, which is far away from the hinge part 5, is provided with a sliding table 7, and the plate body 6 is abutted against the corresponding sliding table 7; a plurality of sliding grooves 8 are formed in the upper end face of the fixed die 1, the sliding grooves 8 correspond to the sliding tables 7 one by one, and the sliding grooves 8 are arranged around the hinge portion 5 in an annular array; the lower end of the sliding chute 8 forms an extension part downwards, extends into the sliding chute 8 and is connected with the sliding chute 8 in a sliding way; a screw rod 4 is arranged in each sliding groove 8, one end of the screw rod 4, close to the hinge part 5, is rotatably connected with the fixed die 1, and the other end of the screw rod 4 penetrates through the extending part and is in threaded connection with the extending part.

The working principle of the injection mold of the present invention is described in detail below, in the actual working process, the fixed mold 1 and the movable mold are closed to inject the raw material, and then the mold opening is performed. During this process, the plurality of plate bodies 6 are always kept joined together to maintain a complete mold cavity. When the injection molding is finished, an operator can rotate the screw rod 4 to drive the sliding table 7 to press the sliding groove 8 to slide, so that the sliding table 7 is far away from the hinge part 5. The plate body 6 will open along with the removal of slip table 7 like this, and in case the plate body 6 opens, the lateral wall of injection moulding's product will tentatively separate with the inner wall of plate body 6, prevents to glue, takes out the product from the die cavity more easily.

Further, a horizontal counter bore is formed in the fixed die 1 and extends to the position below the hinge portion 5, a through groove is formed in the middle of the hinge portion 5 and penetrates through the counter bore, a rotating shaft 3 is rotatably connected in the counter bore, and a cam 2 is fixedly sleeved on the rotating shaft 3; the through groove is internally provided with an ejector block 9, and the lower end of the ejector block 9 is abutted against the surface of the cam 2. Through the arrangement, an operator can rotate the rotating shaft 3 to drive the cam 2 to jack the jacking block 9, so that the bottom of the product is separated from the die cavity, and the demoulding is more convenient.

Furthermore, the fixed die 1 is provided with a guide rod, the movable die is provided with a plurality of through holes, the through holes correspond to the guide rods one to one, and the through holes are matched with the guide rods. Therefore, when the movable die moves, the movable die needs to slide along the guide rod to prevent deviation.

Further, the fixed die 1 and the upper end of the plate body 6 are fixedly provided with first elastic pieces, so that impact between the plate body 6 and the sliding table 7 is reduced.

Furthermore, a handle is fixedly arranged at one end of the screw rod 4 far away from the hinge part 5, so that the operation is more convenient.

Furthermore, the guide rod is sleeved with a second elastic piece, so that the impact between the movable die and the fixed die 1 is reduced.

Furthermore, a vertical pin hole is formed in the top block 9 and penetrates through the through groove; the bayonet lock 11 is arranged in the pin hole, the bayonet lock 11 is detachably matched in the pin hole, the upper end of the bayonet lock 11 extends to the outside of the pin hole, the end cover 10 is fixedly arranged at the upper end of the bayonet lock 11, the air hole 12 penetrating through the through groove is formed in the top block 9, the end cover 10 covers the air hole 12 when the bayonet lock 11 is clamped with the pin hole, and the lower end of the bayonet lock 11 is extended out of the pin hole. Therefore, an operator can jack up the bayonet lock 11 by shifting the rotating shaft 3, so that the air holes 12 are communicated with the bottom of the die cavity and the groove, and exhaust holes communicated with the outside are formed in the groove. Therefore, bottom air pressure and the outside can be balanced by rotating the rotating shaft 3, and negative pressure at the bottom is avoided, so that the product is difficult to demould.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The injection mold for the efficient and environment-friendly plastic tableware is characterized by comprising a movable mold and a fixed mold, wherein the movable mold is arranged below the fixed mold, a plurality of plate bodies are arranged on the upper end surface of the fixed mold, a hinge part is fixedly arranged in the middle of the upper end surface of the fixed mold, the plate bodies are arranged around the hinge part, the plate bodies are jointed to form a mold cavity, and the mold cavity is matched with the movable mold; the lower ends of the plate bodies are hinged with the hinged parts;

2. The injection mold for plastic tableware in environment protecting mode of claim 1, wherein the fixed mold is equipped with a horizontal counter bore, the counter bore extends to below the hinge portion, the middle of the hinge portion is equipped with a through groove, the through groove runs through the counter bore, the counter bore is connected with a rotating shaft in rotation, the rotating shaft is fixedly sheathed with a cam; and an ejecting block is arranged in the through groove, and the lower end of the ejecting block is abutted against the surface of the cam.

3. The injection mold for tableware of plastic and environmental friendly as claimed in claim 1, wherein the fixed mold is provided with a guide bar, the movable mold is provided with a plurality of through holes, the plurality of through holes correspond to the plurality of guide bars one to one, and the through holes are matched with the guide bars.

4. The injection mold for plastic tableware in environmental protection and high efficiency as claimed in claim 1, wherein the fixed mold and the upper end of the plate are both fixedly installed with elastic members.

5. The efficient and environment-friendly plastic tableware injection mold according to claim 1, wherein a handle is fixedly installed at one end of the screw rod away from the hinge portion.

6. The efficient and environment-friendly plastic tableware injection mold according to claim 3, wherein the guide rod is sleeved with an elastic member.

7. The efficient environment-friendly plastic tableware injection mold according to claim 2, wherein the top block is provided with a vertical pin hole, and the pin hole penetrates into the through groove; the improved structure of the pin hole is characterized in that a clamping pin is arranged in the pin hole, the clamping pin is detachably matched with the pin hole, the upper end of the clamping pin extends to the outside of the pin hole, an end cover is fixedly arranged at the upper end of the clamping pin, a vent hole penetrating through the through groove is formed in the top block, the clamping pin covers the vent hole when the clamping pin is clamped with the pin hole, and the lower end of the clamping pin extends out of the pin hole.