CN210047013U - Mould structure of tertiary somatotype - Google Patents

Abstract

The utility model discloses a three-stage mold structure, comprising: a hot runner plate, a spring plate, a fixed die and a movable die, the hot runner plate, the spring plate, the fixed die and the movable die form a die body; A first oil cylinder, a second oil cylinder, a limit block and a locking assembly are installed on the surface of the mold body; the inside of the mold body is provided with a first cavity, a second cavity and a core; the movable mold leaves the fixed The mold disengages the core, the first oil cylinder drives the hot runner plate away from the elastic plate to disengage the first cavity, and the second oil cylinder drives the fixed mold away from the elastic plate to disengage the mold. The second cavity is disengaged. The utility model is provided with a first cavity, a second cavity and a core in the main body of the mold, the hot runner plate and the fixed mold are driven to move by the oil cylinder, and the stroke of the hot runner plate and the fixed mold demoulding is limited by the limit block, thereby The process of three demoulding is realized to process some more complex products.

Description

A three-stage mold structure

technical field

The utility model relates to the technical field of molds, in particular to a three-stage parting mold structure.

Background technique

At present, with the rapid development of the plastics industry and the continuous improvement of the strength and precision of general and engineering plastics, the application scope of plastic products is also expanding, such as: household appliances, instrumentation, construction equipment, automobile industry and daily use Hardware and many other fields. With the rapid increase in the proportion of plastic products, usually a plastic part with a reasonable design can often replace multiple traditional metal parts, which makes the trend of plasticization of industrial products and daily products continue to rise. Therefore, the correct selection of the mold plays a vital role in the quality of the product, and the setting of the mold release mechanism on the mold plays a key role in the design of the mold. A reasonable mold release mechanism can determine whether the product can pass The role of injection mold production, and a reasonable demolding mechanism can also reduce the number of mold parts, reduce the cost of mold preparation, and improve the production efficiency of the mold.

A mold is a tool that makes a blank into a part with a specific shape and size under the action of external force. It is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy parts pressing, pressure casting, and compression molding or injection molding of engineering plastics, rubber, ceramics and other products. The mold has a specific contour or cavity shape, and the use of the contour shape with the cutting edge can separate the blank according to the contour shape (blanking). Applying the cavity shape allows the blank to obtain a corresponding three-dimensional shape. The mold generally includes two parts, the movable mold and the fixed mold, which can be divided and combined. When separated, the parts are taken out, and when closed, the blanks are injected into the mold cavity to form. The mold is a precision tool with complex shape, which bears the expansion force of the blank, and has high requirements on structural strength, rigidity, surface hardness, surface roughness and machining accuracy. The development level of mold production is one of the important signs of the level of machinery manufacturing. Existing common molds can only be used to process some relatively simple products such as shapes and structures. When complex products need to be processed, it is difficult to process them.

Utility model content

(1) The technical problem to be solved.

The technical problem to be solved by the utility model is to provide a three-stage parting mold structure, so as to overcome the problem that ordinary molds in the prior art cannot process relatively complex products.

(2) Technical solutions.

In order to solve the above technical problems, the present utility model provides a three-stage mold structure, including: a hot runner plate, a spring plate, a fixed mold and a movable mold, and the hot runner plate, the spring plate, the fixed mold and the movable mold are composed of A mold main body, the surface of the mold main body is mounted with a first oil cylinder, a second oil cylinder, a limit block and a locking assembly through bolts, and the first oil cylinder and the second oil cylinder are used for advancing the hot runner plate and the fixed mold , in order to complete the demoulding process, the limit block is used to limit the position of the hot runner plate and the fixed mold after demolding; the locking assembly includes a fixed seat, a limit buckle, a locking cover plate and a lock A pull rod, the fixing seat and the limit buckle are fixed on the hot runner plate by bolts, the locking pull rod is riveted and fixed on the fixing seat, and the locking cover plate is fixed on the hot runner plate by bolts. On the movable mold, one end of the locking rod is placed in the groove of the locking cover plate; the hot runner plate is also installed with an elastic block, and a clamping block is installed on the fixed mold, and the clamping block is used for When the locking lever is stuck and resistance is generated to the locking cover plate, the elastic block provides an outward elastic force to push the locking lever outward; the surface of the locking block is provided with a boss, The locking cover is provided with a groove, the boss is placed in the groove to provide resistance, and the locking rod is provided with a blocking surface, the blocking surface blocks the blocking block, so that the The locking block is stuck on the locking rod; the elastic block is provided with a spring groove, and a spring is arranged in the spring groove, and the spring pushes the elastic block outward, thereby pushing the locking rod .

The inside of the mold body is provided with a first cavity, a second cavity and a core, the first cavity passes through the hot runner plate, the elastic plate and the fixed mold, and the second cavity One end is located in the elastic plate, the other end is located in the fixed mold, the bottom of the core is located in the movable mold and runs through the fixed mold, and the space between the first cavity, the second cavity and the core is product; in the first demoulding, the movable die moves away from the fixed die to separate the core from the product; in the second demoulding, the first oil cylinder drives the hot runner plate away from the spring plate, so that the The first mold cavity is separated from the product, and the limit block is used to limit the position of the hot runner plate. When the mold is demolded three times, the second oil cylinder drives the fixed mold to leave the elastic plate so that the second mold is removed. The cavity is disengaged from the product, thereby removing the formed product.

Further, the limit block is provided with a first limit slot and a second limit slot, the hot runner plate is provided with a first pin, the fixed mold is provided with a second pin, the The first locking pin slides on the first limiting groove, the second locking pin slides on the second limiting groove, and the first limiting groove is used to limit the position of the hot runner plate, The second limiting groove is used to limit the position of the fixed die.

Further, a first oil cylinder seat is connected to the first oil cylinder, a second oil cylinder seat is connected to the second oil cylinder, and both the first oil cylinder seat and the second oil cylinder seat are fixed on the elastic body by bolts. board.

(3) Beneficial effects.

The utility model is a three-stage mold structure. A first cavity, a second cavity and a core are arranged in the main body of the mold. The hot runner plate and the fixed mold are driven to move by the oil cylinder, and the hot runner is limited by the limit block. Plate and fixed mold demoulding stroke, so as to realize the process of three demoulding, in order to process some more complex products.

Description of drawings

FIG. 1 is a perspective view of a three-stage mold structure of the present invention.

FIG. 2 is a structural diagram of a locking assembly in a three-stage mold structure of the present invention.

Fig. 3 is a structural diagram of a clamping block, a locking rod and a locking cover plate in a three-stage mold structure of the present invention.

FIG. 4 is a perspective view of an elastic block in a three-stage mold structure of the present invention.

5 is a cross-sectional view of a three-stage mold structure of the present invention.

FIG. 6 is an enlarged view of A in FIG. 1 .

FIG. 7 is a front view of a three-stage mold structure of the present invention.

Among them: 1 is the hot runner plate, 2 is the spring plate, 3 is the fixed die, 4 is the movable die, 5 is the first oil cylinder, 6 is the second oil cylinder, 7 is the limit block, 8 is the locking component, and 9 is the first oil cylinder. A cavity, 10 is the second cavity, 11 is the core, 12 is the first limiting slot, 13 is the first bayonet, 14 is the second bayonet, 15 is the second limiting slot, 16 is the fixing seat , 17 is a limit buckle, 18 is a locking cover, 19 is a spring block, 20 is a locking rod, 21 is a block, 22 is a boss, 23 is a groove, 24 is a blocking surface, 25 is a spring, 26 is the spring groove, 27 is the first oil cylinder seat, and 28 is the second oil cylinder seat.

Detailed ways

The specific embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

Referring to FIGS. 1 to 7, a three-stage mold structure of the present invention includes: a hot runner plate 1, a spring plate 2, a fixed die 3 and a movable die 4, a hot runner plate 1, a spring plate 2, a fixed die 3 and the movable mold 4 form the main body of the mold. Referring to Figure 1, the surface of the main body of the mold is installed with a first oil cylinder 5, a second oil cylinder 6, a limit block 7 and a locking assembly 8 through bolts, wherein the first oil cylinder 5, the second oil cylinder 6 For driving during demoulding, the first oil cylinder 5 drives the hot runner plate 1, the second oil cylinder 6 drives the fixed mold 3, and the limit block 7 is fixed on the elastic plate 2 to limit the movement of the hot runner plate 1 and the fixed mold 3 's itinerary.

Referring to FIG. 2 , the locking assembly 8 includes a fixed seat 16 , a limit buckle 17 , a locking cover 18 and a locking rod 20 , wherein the fixed seat 16 and the limit buckle 17 are fixed on the surface of the hot runner plate 1 by bolts. The limit buckle 17 is used to limit the outward position of the locking rod 20. One end of the locking rod 20 is riveted and fixed on the fixed seat 16, the locking cover 18 is fixed on the surface of the movable die 4 by bolts, and the locking rod 20 is placed In the inner groove of the locking cover plate 18, the groove of the locking cover plate 18 defines the locking rod 18 so that the locking rod 18 cannot move outwards; The pull rod 18 provides an outward elastic force; the fixed mold 3 is provided with a blocking block 21 , which can clamp the locking rod 18 to lock the fixed mold 3 and the hot runner plate 1 .

Referring to FIG. 3, the surface of the blocking block 21 is provided with a boss 22, and the locking cover 18 is provided with a groove 23. The boss 22 is stuck at the groove 23 to provide resistance to the locking cover 18; A blocking surface 24 is provided on the pulling rod 20 , and the blocking surface 24 blocks the blocking block 21 so that the blocking block 21 can block the locking rod 18 .

Referring to FIG. 4 , the spring block 19 is provided with a spring groove 26 , and a spring 25 is arranged in the spring groove 26 . The spring 25 provides an outward elastic force to push the spring block 19 , and then pushes the locking rod through the spring block 19 .

Referring to Figure 5, the interior of the mold body is provided with a first cavity 9, a second cavity 10 and a core 11, and the hollow parts of the first cavity 9, the second cavity 10 and the core 11 are used for injection molding products, The first cavity 9 passes through the hot runner plate 1, the elastic plate 2 and the fixed mold 3. One end of the second cavity 10 is located on the elastic plate 2 and the other end is located in the fixed mold 3. The bottom of the core 11 is located in the movable mold 4 and penetrates through the fixed mold 3. Mold 3; When demoulding for the first time, the movable mold 4 moves downwards away from the fixed mold 3 so that the core 11 is separated from the product. At this time, the product remains on the fixed mold 3. During the second demoulding, the first oil cylinder 5 drives The hot runner plate 1 leaves the spring plate 2 so that the first cavity 9 is separated from the product. During the third demoulding, the second oil cylinder 6 drives the fixed mold 3 to leave the spring plate 2, so that the second cavity 10 is separated from the product, so that the processing is completed. Then remove the product.

Referring to FIG. 6 , the limiting block 7 is provided with a first limiting slot 12 and a second limiting slot 15 , the hot runner plate 1 is fixed with a first pin 13 by bolts, and the fixed die 3 is fixed with a second stopper by bolts. The bayonet 14, the first bayonet 13 can slide on the first limit slot 12, the second bayonet 14 can slide on the second limit slot 15, the first limit slot 12 is used to limit the hot runner plate 1, the second limiting groove 15 is used to define the position of the fixed die 3.

Referring to FIG. 7 , the first oil cylinder 5 is connected with a first oil cylinder base 27 , and the second oil cylinder 6 is connected with a second oil cylinder base 28 .

When closed, the locking cover 18 presses the locking rod 20 inward. When demoulding is performed once, the movable mold 4 moves downward to drive the locking cover 18 to disengage from the locking rod 20. At this time, the elastic block 19 provides an outward force. The elastic force ejects the locking rod 20 , so that the blocking surface 24 is separated from the blocking block 21 , so as to realize the subsequent process of the hot runner plate 1 and the fixed mold 3 being separated from the elastic plate 2 .

The utility model is a three-stage mold structure. A first cavity, a second cavity and a core are arranged in the main body of the mold. The hot runner plate and the fixed mold are driven to move by the oil cylinder, and the hot runner is limited by the limit block. Plate and fixed mold demoulding stroke, so as to realize the process of three demoulding, in order to process some more complex products.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principles of the present invention, several improvements and modifications can be made. These improvements and retouching should also be regarded as the protection scope of the present invention.

Claims (3)

1. A three-level parting mold structure, comprising: the hot runner plate (1), the elastic plate (2), the fixed die (3) and the movable die (4) form a die main body, and a first oil cylinder (5), a second oil cylinder (6), a limiting block (7) and a locking assembly (8) are arranged on the surface of the die main body; the locking assembly (8) comprises a fixed seat (16), a limit buckle (17), a locking cover plate (18) and a locking pull rod (20), the fixed seat (16) and the limit buckle (17) are fixed on the hot runner plate (1), the locking pull rod (20) is fixed on the fixed seat (16), the locking cover plate (18) is fixed on the movable die (4), and the locking pull rod (20) is arranged in the locking cover plate (18); the hot runner plate is also provided with an elastic block (19), and the fixed die (3) is provided with a clamping block (21); a boss (22) is arranged on the surface of the clamping block (21), a groove (23) is formed in the locking cover plate (18), the boss (22) is arranged in the groove (23), and a blocking surface (24) is arranged on the locking pull rod (20); a spring groove (26) is formed in the elastic block (19), and a spring (25) is arranged in the spring groove (26);

the inside of mould main part is equipped with first die cavity (9), second die cavity (10) and core (11), first die cavity (9) link up hot runner plate (1) diving board (2) with cover half (3), second die cavity (10) one end is located diving board (2), the other end is located cover half (3), core (11) bottom is located movable mould (4) just runs through cover half (3).

2. The three-stage parting mold structure according to claim 1, wherein: be equipped with first spacing groove (12) and second spacing groove (15) on stopper (7), be equipped with first bayonet lock (13) on hot runner plate (1), be equipped with second bayonet lock (14) on cover half (3), first bayonet lock (13) are in slide on first spacing groove (12), second bayonet lock (14) are in slide on second spacing groove (15).

3. The three-stage parting mold structure according to claim 1, wherein: the elastic plate is characterized in that a first oil cylinder base (27) is connected to the first oil cylinder (5), a second oil cylinder base (28) is connected to the second oil cylinder (6), and the first oil cylinder base (27) and the second oil cylinder base (28) are both fixed to the elastic plate (2).

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