CN217169518U - Department's section of thick bamboo inscribe injection mold - Google Patents

Abstract

The utility model relates to an department section of thick bamboo inscribe injection mold, it is established including setting up guide cylinder, the cover that slides in the back mould the department section of thick bamboo and the setting of sliding of guide cylinder periphery are in cut needle in the guide cylinder, department section of thick bamboo front end is provided with product ejection face, set up the slide hole of rectangular shape on the guide cylinder, be connected with the cutting needle drive block on the cutting needle, the cutting needle drive block passes the outside extension in slide hole, the cutting needle drive block is connected on a cutting faller. Because the department's section of thick bamboo that can slide and cut the needle have been set up respectively in the outer wall of guide cylinder and hole, like this, department's section of thick bamboo with cut the needle under the direction of guide cylinder, it is more steady to slide. The cutting needle is driven by the cutting needle driving block, the cutting needle driving block penetrates through the sliding channel hole and then is connected with the cutting needle plate, and the cutting needle plate drives the cutting needle to move, so that the cutting needle in the guide cylinder is driven from the outside.

Description

Department's section of thick bamboo inscribe injection mold

Technical Field

The utility model relates to an inside tangent injection mold of department's section of thick bamboo for with the mouth of a river excision in the mould after moulding plastics.

Background

When the product is injection-molded, a water gap is formed at the boundary between the flow channel and the product, and the water gap needs to be cut off when the product is subsequently trimmed. This not only increases the labor, but also increases the material consumption. The published chinese patent document "CN 209682831U" can remove the nozzle in the mold, thereby saving labor and saving injection molding materials. But its structure is somewhat complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an inside tangent injection mold of department's section of thick bamboo has solved how to optimize the mould structure, realizes the problem of mouth of a river excision in the mould.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides an department section of thick bamboo inscribe injection mold, it is established including setting up guide cylinder, the cover that slides in the back mould the department section of thick bamboo of guide cylinder periphery and the setting of sliding are in cut needle in the guide cylinder, department section of thick bamboo front end is provided with product ejection face, set up the slide hole of rectangular shape on the guide cylinder, be connected with the cutting needle drive block on the cutting needle, the cutting needle drive block passes the slide hole is outside extended, the cutting needle drive block is connected on a cutting faller.

Preferably, the needle cutting plate is provided with an embedded groove and a first cover plate covering the opening of the embedded groove, and the needle cutting driving block is limited in the embedded groove by the first cover plate.

Preferably, a bottom plate is arranged in the rear mold, and the guide cylinder is fixed on the bottom plate through a bolt.

Preferably, a through connecting hole is formed in the cutting needle, and the cutting needle driving block is arranged in the connecting hole in a penetrating mode.

Furthermore, the two opposite side walls of the guide cylinder are provided with the slideway holes, and the cutting needle driving block penetrates through the slideway holes at the two sides and extends far.

Furthermore, the needle cutting plate is provided with an embedded groove and a first cover plate covering the opening of the embedded groove, the needle cutting driving block is limited in the embedded groove by the first cover plate, and the width of the embedded groove is small enough to enable two ends of the needle cutting driving block to be tightly abutted against the inner wall of the embedded groove.

Because of the application of the technical scheme, compared with the prior art, the utility model has the advantages of it is following:

the utility model discloses an department section of thick bamboo inscribe injection mold, owing to set up the department section of thick bamboo that can slide respectively and cut the needle at the outer wall and the hole of guide cylinder, like this, a department section of thick bamboo with cut the needle under the direction of guide cylinder, slide more steadily. The cutting needle is driven by the cutting needle driving block, the cutting needle driving block penetrates through the sliding channel hole and then is connected with the cutting needle plate, and the cutting needle plate drives the cutting needle to move, so that the cutting needle in the guide cylinder is driven from the outside. The cutting needle is used for cutting off the water gap in the die, and the ejector sleeve is used for ejecting a product.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic view of a part of the structure of the preferred embodiment of the ejector sleeve internal cutting injection mold of the present invention;

FIG. 2 is a middle sectional view of FIG. 1;

FIG. 3 is a schematic view of the top structure of FIG. 2 mated with a product;

FIG. 4 is a schematic view of the structure of the several drive plates of FIG. 1 with the bottom removed;

FIG. 5 is an enlarged view at A in FIG. 2;

wherein the reference numerals are as follows:

1. a guide cylinder; 11. a slideway hole;

2. a ejector sleeve; 21. ejecting the product out of the surface;

3. cutting a needle; 31. connecting holes;

4. a cutting needle driving block;

5. cutting the needle plate; 51. caulking grooves; 52. a first cover plate;

6. a base plate; 61. a second cover plate;

7. the ejector sleeve is connected with the upper plate;

8. the ejector sleeve is connected with the lower plate;

9. producing a product;

10. a nozzle.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, a partial structural schematic diagram of an internally tangent injection mold for a department barrel is provided, a guide barrel 1 is arranged in a rear mold, a department barrel 2 is arranged on the periphery of the guide barrel 1, the department barrel 2 can slide up and down on the periphery of the guide barrel 1, a product ejecting surface 21 is arranged at the front end of the department barrel 2, and the product ejecting surface 21 is used for ejecting an injection molded product 9 upwards (see fig. 3). As shown in fig. 2, a cutting needle 3 is provided in the guide cylinder 1, and the cutting needle 3 can slide up and down in the guide cylinder 1. The guide cylinder 1 has a certain guiding function, so that the ejector cylinder 2 and the cutting needle 3 can slide more stably.

As shown in fig. 2, the ejector sleeve 2 is connected to the ejector sleeve upper plate 7 and the ejector sleeve lower plate 8, the lower end of the ejector sleeve 2 is flared to form a flange edge, the ejector sleeve upper plate 7 and the ejector sleeve lower plate 8 are cooperatively fixed, the ejector sleeve upper plate 7 and the ejector sleeve lower plate 8 are fixed together, and the ejector sleeve 2 is driven to move up and down in the up-and-down movement process. The guide cylinder 1 is fixed to the base plate 6 and is not moved in general, but moves in accordance with the movement of the rear mold. As shown in fig. 5, the cutting needle 3 is connected to the cutting needle plate 5 by the cutting needle driving block 4, the cutting needle driving block 4 is inserted into the connecting hole 31 of the cutting needle 3, and passes through the chute hole 11 formed in the guide cylinder 1 to enter the insertion groove 51, the insertion groove 51 is formed in the cutting needle plate 5, the opening of the insertion groove 51 is provided with a first cover plate 52, and the first cover plate 52 limits the cutting needle driving block 4 in the insertion groove 51. As shown in fig. 4 (the cutting pin plate 5 is hidden), the cutting pin driving block 4 has a rectangular parallelepiped shape, the first cover plate 52 has a substantially square plate shape, and the first cover plate 52 is fixed to the main body of the cutting pin plate 5 by screws. As shown in fig. 5, the slide hole 11 of the guide cylinder 1 is elongated, so that the needle cutting driving block 4 can slide in the slide hole 11, and the guide cylinder 1 is relatively immovable during the sliding process. The width of the caulking groove 51 is small enough to make both ends of the cutting needle driving block 4 abut against the inner wall of the caulking groove 51, so that the cutting needle driving block 4 is not easily moved, thereby improving the service life.

In this example, the connecting hole 31 of the cutting needle 3 is penetrated, and the cutting needle driving block 4 is penetrated in the connecting hole 31, so that the assembly is convenient. In other embodiments, the cutting needle driving block 4 can be directly welded or bonded on the cutting needle 3. In this example, the guide cylinder 1 has two opposite side walls provided with the chute holes 11, and the cutting needle driving block 4 has two ends inserted into the insertion grooves 51 after passing through the chute holes 11, so that the cutting needles 3 can be driven more evenly.

As shown in fig. 4 and 5, the guide cylinder 1 is fixed to a second cover plate 61 by bolts (not shown), and the second cover plate 61 is fixed to the main body of the base plate 6 by bolts.

In summary, the internal cylinder cutting injection mold of the present embodiment has an optimized structure, and the internal cylinder 2 and the cutting pin 3 can stably slide on the outer wall and the inner wall of the guide cylinder 1 under the guiding action of the guide cylinder 1. And the cutting needle 3 can be driven by only one cutting needle plate 5. As shown in fig. 3, driving the cutting pin 3 upwards cuts the nozzle 10, completing the cutting of the nozzle in the mold, while the cartridge 2 is able to push the product 9 upwards, moving the product 9 away from the mold.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (6)

1. The utility model provides an department section of thick bamboo inscribe injection mold, its characterized in that, it establishes including guide cylinder (1), the cover that slides that sets up in the back mould department section of thick bamboo (2) and the setting of sliding of guide cylinder (1) periphery are in cut needle (3) in guide cylinder (1), department section of thick bamboo (2) front end is provided with product ejection face (21), set up slide hole (11) of rectangular shape on guide cylinder (1), be connected with on cutting needle (3) and cut needle drive block (4), cut needle drive block (4) and pass slide hole (11) are outside to be extended, cut needle drive block (4) and connect on a cutting faller (5).

2. The inner barrel contact injection mold according to claim 1, wherein: the needle cutting plate (5) is provided with an embedded groove (51) and a first cover plate (52) covering the opening of the embedded groove (51), and the needle cutting driving block (4) is limited in the embedded groove (51) by the first cover plate (52).

3. The inner barrel contact injection mold according to claim 1, wherein: a bottom plate (6) is arranged in the rear die, and the guide cylinder (1) is fixed on the bottom plate (6) through bolts.

4. The inner barrel contact injection mold according to claim 1, wherein: the cutting needle (3) is provided with a through connecting hole (31), and the cutting needle driving block (4) penetrates through the connecting hole (31).

5. The inner barrel contact injection mold according to claim 4, wherein: the two opposite side walls of the guide cylinder (1) are provided with the slideway holes (11), and the cutting needle driving block (4) penetrates through the slideway holes (11) on the two sides and extends far.

6. The inner barrel contact injection mold according to claim 5, wherein: be provided with caulking groove (51) and lid on cutting faller (5) and establish first apron (52) of caulking groove (51) opening part, cut needle drive block (4) quilt first apron (52) restriction is in caulking groove (51), the width of caulking groove (51) is enough little so that the both ends of cutting needle drive block (4) support tightly the inner wall of caulking groove (51).

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