CN213533436U

CN213533436U - Rotational molding device

Info

Publication number: CN213533436U
Application number: CN202022363137.7U
Authority: CN
Inventors: 刘恒
Original assignee: Chongqing Chengyue Blister Products Co ltd
Current assignee: Chongqing Chengyue Blister Products Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-06-25
Anticipated expiration: 2030-10-22

Abstract

The utility model discloses a rotational molding device, which comprises a lower die base, wherein the top of the lower die base is fixedly connected with an upper die base, the centers of the outer surfaces of the front end and the rear end of the lower die base are fixedly connected with mounting frames, and a plurality of positioning holes are arranged around the centers of the two mounting frames; a groove is formed in the center of the top of the upper die base, and a fixing block is fixedly connected to the bottom of the groove; the two sides of the inner surface of the top of the upper die base are respectively and fixedly connected with a first forming die column and a second forming die column, and the centers of the first forming die column and the second forming die column are both provided with a cavity; and the bottom ends of the first forming die column and the second forming die column are provided with threaded columns. The utility model discloses in, this kind of rotational moulding device is through design shaping die post, can add man-hour at the inside automatic supporting structure that forms of product at rotational moulding, has effectively solved traditional rotational moulding technology and has processed the product and produce the sunken problem of large tracts of land easily, and work efficiency improves greatly, is worth wideling popularize.

Description

Rotational molding device

Technical Field

The utility model relates to a rotational moulding device technical field especially relates to a rotational moulding device.

Background

Rotational molding is also known as rotational molding, rotational casting, rotational molding and the like; the rotational molding process is that plastic raw materials are added into a mold, then the mold continuously rotates along two vertical shafts and is heated, so that the plastic raw materials in the mold are gradually and uniformly coated and fused on the whole surface of a mold cavity under the action of gravity and heat energy to be molded into a required shape, and then the product is obtained after cooling, shaping and demolding; the processing and molding processes of plastics and composite materials thereof are various, and besides the common processes of extrusion, injection, blow molding and the like, rotational molding is also a processing method of plastic products; the development speed of the rotational molding industry is lower than that of other plastic molding and processing industries due to various factors such as a slow processing period and limitation of used materials at home and abroad; rotational moulding has traditionally been used primarily for thermoplastics, and rotational moulding of thermoset materials such as cross-linkable polyethylene has also progressed rapidly, as rotational moulding does not require high injection pressures, high shear rates or accurate polymer metering, and therefore moulds and machines are relatively inexpensive and have a long service life.

The rotational molding device is equipment for producing rotational molding products, various different types of rotational molding devices are available in the market at present, but the structural design of the existing device has certain defects, most rotational molding products produced by the existing rotational molding device are not supported and are easy to deform under pressure, and large-area depressions of the products are easy to form in the actual use process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a rotational molding device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a rotational molding device comprises a lower die base, wherein the top of the lower die base is fixedly connected with an upper die base, the centers of the outer surfaces of the front end and the rear end of the lower die base are fixedly connected with mounting frames, and a plurality of positioning holes are formed in the peripheral sides of the centers of the two mounting frames;

a groove is formed in the center of the top of the upper die base, and a fixing block is fixedly connected to the bottom of the groove;

the two sides of the inner surface of the top of the upper die base are respectively and fixedly connected with a first forming die column and a second forming die column, and the centers of the first forming die column and the second forming die column are both provided with a cavity;

and the bottom ends of the first forming die column and the second forming die column are provided with threaded columns.

As a further description of the above technical solution:

and the periphery of the top of the outer wall of the lower die seat and the periphery of the bottom of the outer wall of the upper die seat are fixedly connected with fixed frames.

As a further description of the above technical solution:

and a plurality of fixing bolts are fixedly connected between the two fixing frames.

As a further description of the above technical solution:

and the corners of the inner walls of the lower die seat and the upper die seat are provided with fillets.

As a further description of the above technical solution:

two the screw thread post all closes respectively through the screw thread soon with first shaping die column and second shaping die column fixed connection, just the screw thread groove corresponding with the screw thread post is all seted up at the center of first shaping die column and second shaping die column bottom.

As a further description of the above technical solution:

the distance between the bottom ends of the two threaded columns and the inner surface of the bottom of the lower die base is 2-3 mm.

The utility model discloses following beneficial effect has: 1. the utility model provides a pair of rotational moulding device compares with traditional device, the device simple structure, convenient and practical through the simple shaping processing structure of design, and use that can be extensive has the processing field of pressurized function demand inside the part to make its holistic product structure more firm.

2. Compared with the traditional device, the device has great innovation and improvement in structure and design, and the rotational molding device can automatically form a supporting structure in the product in rotational molding processing through designing the molding die column, so that the problem that the product is easily sunk in a large area in the conventional rotational molding process is effectively solved, the working efficiency is greatly improved, and the rotational molding device is worth vigorously popularizing.

Drawings

Fig. 1 is a front view structural diagram of a rotational molding device provided by the present invention;

fig. 2 is a cross-sectional structural view of a rotational molding apparatus according to the present invention;

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

Illustration of the drawings:

1. a lower die holder; 2. an upper die holder; 3. a fixed frame; 4. fixing the bolt; 5. a mounting frame; 6. positioning holes; 7. a groove; 8. a fixed block; 9. a first forming die post; 10. a second forming die post; 11. a cavity; 12. a threaded post; 13. a thread groove.

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 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; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a rotational molding device comprises a lower die holder 1, wherein the top of the lower die holder 1 is fixedly connected with an upper die holder 2, the centers of the outer surfaces of the front end and the rear end of the lower die holder 1 are fixedly connected with mounting frames 5, positioning holes 6 are respectively formed in the peripheral sides of the centers of the two mounting frames 5, the mounting frames 5 are fixedly connected with the centers of the outer surfaces of the front end and the rear end of the lower die holder 1, and a plurality of positioning holes 6 are respectively formed in the peripheral sides of the centers of the two mounting frames 5, so that the rotational molding device can be installed on special rocking and rolling;

a groove 7 is formed in the center of the top of the upper die holder 2, and a fixing block 8 is fixedly connected to the bottom of the groove 7;

the two sides of the inner surface of the top of the upper die holder 2 are respectively fixedly connected with a first molding column 9 and a second molding column 10, the centers of the first molding column 9 and the second molding column 10 are both provided with a cavity 11, the first molding column 9 and the second molding column 10 can form two hollow supporting columns in a product during rotational molding, and the problem that the product is easy to dent in a large area in the traditional rotational molding process is effectively solved;

threaded columns 12 are installed at the bottom ends of the first molding column 9 and the second molding column 10, the threaded columns 12 are installed at the bottom ends of the first molding column 9 and the second molding column 10, and are fixedly connected in a threaded screwing mode, so that the installation heights of the bottom ends of the first molding column 9 and the second molding column 10 can be adjusted, and the distance between the bottom ends of the two threaded columns 12 and the inner surface of the bottom of the lower die holder 1 can be adjusted as required when the rotational molding device is used for processing products with different thicknesses.

The periphery of the top of the outer wall of the lower die holder 1 and the periphery of the bottom of the outer wall of the upper die holder 2 are fixedly connected with fixed frames 3.

A plurality of fixing bolt 4 of fixedly connected with between two fixed frame 3 through a plurality of fixing bolt 4 fixed connection, both can play quick fixed action, also conveniently dismantle the drawing of patterns simultaneously.

The corners of the inner walls of the lower die holder 1 and the upper die holder 2 are provided with fillets.

The two threaded columns 12 are fixedly connected with the first molding column 9 and the second molding column 10 respectively through threaded screwing, and threaded grooves 13 corresponding to the threaded columns 12 are formed in the centers of the bottom ends of the first molding column 9 and the second molding column 10.

The distance between the bottom ends of the two threaded columns 12 and the inner surface of the bottom of the lower die holder 1 is 2-3 mm.

The working principle is as follows: the utility model provides a rotational moulding device has great improvement innovation with traditional device, when using this kind of rotational moulding device, at first annotate the plastics raw materials into die holder 1, then utilize a plurality of fixing bolt 4 to fix die holder 1 and upper die base 2, through the equal fixedly connected with mounting bracket 5 in the center of both ends surface around die holder 1, and all set up a plurality of locating holes 6 in the week side at two mounting bracket 5 centers, thereby make this rotational moulding device can install and use on the special rocking and rolling equipment, the both sides of the internal surface of upper die base 2 top fixedly connected with first molding pillar 9 and second molding pillar 10 respectively, first molding pillar 9 and second molding pillar 10 can form two hollow support columns in the inside of product when rotational moulding processing, effectively solved the problem that traditional rotational moulding technology processing product produced large tracts of land sunken easily, through all installing screw thread post 12 in the bottom of first forming pillar 9 and second forming pillar 10 to carry out fixed connection through the mode that the screw thread closes soon, thereby make the mounting height in first forming pillar 9 and second forming pillar 10 bottom adjust, thereby make this rotational moulding device when the product of processing different thickness, can adjust the distance between the bottom of two screw thread posts 12 and the die holder 1 bottom internal surface as required.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a rotational moulding device, includes die holder (1), its characterized in that: the top of the lower die base (1) is fixedly connected with an upper die base (2), the centers of the outer surfaces of the front end and the rear end of the lower die base (1) are fixedly connected with mounting frames (5), and a plurality of positioning holes (6) are formed in the peripheral sides of the centers of the two mounting frames (5);

a groove (7) is formed in the center of the top of the upper die holder (2), and a fixing block (8) is fixedly connected to the bottom of the groove (7);

two sides of the inner surface of the top of the upper die holder (2) are respectively and fixedly connected with a first forming die column (9) and a second forming die column (10), and the centers of the first forming die column (9) and the second forming die column (10) are both provided with a cavity (11);

and threaded columns (12) are mounted at the bottom ends of the first forming mold column (9) and the second forming mold column (10).

2. A rotomoulding device as claimed in claim 1, wherein: and the peripheral sides of the top of the outer wall of the lower die holder (1) and the peripheral sides of the bottom of the outer wall of the upper die holder (2) are fixedly connected with fixed frames (3).

3. A rotomoulding apparatus as claimed in claim 2, wherein: a plurality of fixing bolts (4) are fixedly connected between the two fixing frames (3).

4. A rotomoulding device as claimed in claim 1, wherein: and the corners of the inner walls of the lower die holder (1) and the upper die holder (2) are provided with fillets.

5. A rotomoulding device as claimed in claim 1, wherein: the two threaded columns (12) are fixedly connected with a first forming mold column (9) and a second forming mold column (10) through threads in a screwing mode, and threaded grooves (13) corresponding to the threaded columns (12) are formed in the centers of the bottom ends of the first forming mold column (9) and the second forming mold column (10).

6. A rotomoulding device as claimed in claim 1, wherein: the distance between the bottom ends of the two threaded columns (12) and the inner surface of the bottom of the lower die holder (1) is 2-3 mm.