CN204278484U - The fast replacing device of plastic profile extrusion molding mold die head - Google Patents

Abstract

The utility model discloses a quick-changing device for a die head of a plastic profile extrusion molding die head. The die head includes a heating plate, the die head is provided with a die head heating sleeve (9), and the heating plate is installed on the die head for heating. The outer surface of the cover (9); the template of the die head is installed in the inner hole of the die head heating cover (9). Adopt the above technical scheme to improve the heating efficiency and heat preservation effect of the heating device, avoid energy loss and waste; facilitate the operation and use of operators, reduce the labor cost input on the production line, and solve the problems caused by the continuous and repeated disassembly of the traditional heating device Inconvenient, while improving the versatility of the heating device and its service life, to reduce the investment in capital costs of mold accessories.

Description

Quick change device for plastic profile extrusion die head

technical field

The utility model belongs to the technical field of high-speed extrusion die forming system. Specifically, the utility model relates to a quick-change device for a die head of a plastic profile extrusion molding die.

Background technique

Plastic profile extrusion molds need to be heated at the position of the die head to ensure that the material maintains a viscous flow state under high temperature conditions, so that the material has good flow properties. At present, in the plastic profile extrusion mold industry, most of them use four single-piece heating plates to heat the four sides of the outer ring of the die head. As shown in Figure 1:

The heating device requires the heating plates on the upper, lower, left, and right sides (that is, the upper heating plate 1, the right heating plate 2, the lower heating plate 3 and the left heating plate 4 in the figure) to be assembled into a whole, and then installed on the mold on the die head. But there is following shortcoming in above-mentioned technical scheme:

1. More heat loss and poor heat preservation effect: Since this heating device is assembled from four heating plates, the integrity of the heating device is poor. Generally, there will be heat generated at the joint of the four heating plates. With a certain amount of gaps, the heat generated by the heating plate will be dissipated through the gaps, resulting in energy loss and waste, and sometimes even the temperature requirements required for the mold start-up process cannot be reached;

2. The versatility is poor, the service life is short, and it is inconvenient to operate during actual use: since this type of heating device is assembled from multiple heating plates, during the use of the mold, it must be assembled when starting up and shutting down When maintaining the mold, it is necessary to disassemble the heating plate, and repeatedly install and disassemble, which greatly affects the service life of the heating device, and it is particularly troublesome to operate; affected by its service life, generally a set of molds needs to be equipped with a set of heating plates. device, resulting in poor versatility and high investment in mold capital costs.

Contents of the invention

The utility model provides a quick-changing device for the die head of an extruding mold for plastic profiled materials, and aims to improve the heating efficiency and the universality of the heating device.

In order to achieve the above object, the technical scheme that the utility model takes is:

The utility model relates to a quick-change device for extrusion molding die heads of plastic profiled materials. The die head includes a heating plate, and the die head is provided with a heating sleeve for the die head. The heating plate is installed on The outer surface of the die head heating jacket; the template of the die head is installed in the inner hole of the die head heating jacket.

The shape of the rear end of the die heating jacket is an external thread structure, and the thread structure connects the die heating jacket to the extruder through a connecting flange with internal threads.

The inside of the die head heating jacket is set as two circular inner holes with different diameters, and the part where the major diameter and the minor diameter of the inner holes combine forms an axial positioning step; the first piece of the whole set of die head The template is a large diameter, and its external dimensions match the large diameter of the die head heating jacket; the shape of the remaining templates of the die head is a small diameter, which matches the small diameter of the die head heating jacket.

The small diameter of the inner hole of the heating sleeve of the die head is provided with a rotation direction positioning groove; the rotation direction positioning groove is matched with the template of the die head through a positioning key.

The heating plate includes an upper heating plate, a right heating plate, a lower heating plate and a left heating plate, which are installed on the upper side, the right side, the lower side and the left side of the die head heating jacket respectively.

The utility model adopts the above-mentioned technical scheme, improves the heating efficiency of the heating device and its heat preservation effect, avoids waste caused by energy loss; facilitates the operation and use of the operator, reduces the labor cost input on the production line, and solves the problem of continuous and repeated disassembly in the traditional heating device Inconvenience is brought, and the versatility and service life of the heating device are improved at the same time, so as to reduce the capital cost investment of mold accessories.

Description of drawings

The content shown in the accompanying drawings and the marks in the figure are as follows:

Fig. 1 is the structural representation of the heating device of the plastic profile extrusion molding die described in the background technology;

Fig. 2 is the structural schematic diagram of the universal heating device of the extrusion molding mold of plastic profile in the utility model;

Fig. 3 is a left sectional view of the structure shown in Fig. 2;

FIG. 4 is a three-dimensional rendering of the structure shown in FIG. 2 .

Marked in the figure: 1. Upper heating plate, 2. Right heating plate, 3. Lower heating plate, 4. Left heating plate, 5. Upper heating plate, 6. Right heating plate, 7. Lower heating plate. Side heating plate, 8, left heating plate, 9, die head heating jacket, 10, axial positioning step, 11, rotation direction positioning groove, 12, external thread structure.

Detailed ways

Next, with reference to the accompanying drawings, through the description of the embodiments, the specific implementation of the utility model will be further described in detail, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solutions of the utility model .

As shown in Fig. 2, Fig. 3 and Fig. 4, it is the quick-change device of the plastic profile extrusion molding die head of the utility model, and the described die head includes a heating plate. The utility model belongs to the technical field of extrusion molding dies for plastic profiled materials, and relates to the design principle of a universal heating device for extrusion molding plastic profiled materials. More specifically, the utility model relates to an extrusion molding die for plastic profiled materials Universal heating unit.

In order to solve the problems existing in the prior art and overcome its defects, and realize the purpose of the invention of improving the heating efficiency and improving the versatility of the heating device, the technical scheme adopted by the utility model is as follows:

As shown in Figures 2 to 4, the utility model is a quick-change device for a plastic profile extrusion die head. The die head is provided with a die head heating sleeve 9, and the heating plate is installed on the die The outer surface of the head heating jacket 9; the template of the die is installed in the inner hole of the die heating jacket 9.

The above technical solution improves the heating efficiency of the heating device and its heat preservation effect, avoids waste caused by energy loss; facilitates the operation and use of operators, reduces the labor cost input on the production line, and solves the problems caused by the continuous and repeated disassembly of traditional heating devices. Inconvenient, while improving the versatility of the heating device and its service life, to reduce the investment in capital costs of mold accessories.

A whole die heating jacket 9 is made, the outer side of the die heating jacket 9 adopts a square shape, and the inner side adopts two circles with different diameters to form steps and play a positioning role in the extrusion direction. When making the die head of the mold, when the size of the profile is not much different, the size of the template is designed to be the same size. After the entire set of die head is assembled, it can be integrated into the heating sleeve. .

The shape of the front end of the die heating jacket 9 is a square, and the shape of the rear end is an external thread structure 12, which can be connected to the extruder through a connecting flange with internal threads. Since the die head is integrally loaded, when changing the die, the die head heating sleeve 9 may not be disassembled, and can be replaced by directly taking out the integral die head, which effectively improves the convenience of operation.

The shape of the rear end of the die heating jacket 9 is an external thread structure, and the thread structure connects the die heating jacket 9 to the extruder through a connecting flange with internal threads.

The inside of the die heating jacket 9 is provided with two circular inner holes with different diameters, and the position where the major diameter and the minor diameter of the inner holes combine forms an axial positioning step 10; the first part of the complete set of dies A template is a large diameter, and its external dimension is matched with the large diameter of the die head heating jacket 9;

The internal structure of the die heating jacket 9 is made into two circular shapes with different diameters, and an axial positioning step 10 is formed at the junction of the major diameter and the minor diameter. Cooperate with the large diameter of the heating jacket; the shape of the remaining templates of the die head is a small diameter, which is matched with the small diameter of the heating jacket. The axial positioning step 10 has the effect of positioning the die head in the axial direction.

On the small diameter of the inner hole of the die head heating jacket 9, there is a rotation direction positioning groove 11; the rotation direction positioning groove 11 cooperates with the template of the die head through a positioning key. The rotation direction positioning groove 11 is used to limit the degree of freedom of the die head in the rotation direction by cooperating with the die head through the positioning key.

The heating plate includes an upper heating plate 5, a right heating plate 6, a lower heating plate 7 and a left heating plate 8, which are installed on the upper side, the right side, the lower side and the left side of the die heating jacket 9 respectively. on the side. The upper heating plate 5, the right heating plate 6, the lower heating plate 7, and the left heating plate 8 heat the die heating jacket 9, and there is no need to disassemble it when changing the mold, which can effectively improve the economic benefits of its use.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned method, as long as various insubstantial improvements are made by adopting the method concept and technical solution of the utility model, or Directly applying the ideas and technical solutions of the utility model to other occasions without improvement is within the protection scope of the utility model.

Claims (5)

1. the fast replacing device of plastic profile extrusion molding mold die head, described die head comprises heating plate, it is characterized in that: described die head is provided with die head heating jacket (9), described heating plate is arranged on the outer surface of die head heating jacket (9); The model sheetinstallat of described die head is in the endoporus of die head heating jacket (9).

2. according to the fast replacing device of plastic profile extrusion molding mold die head according to claim 1, it is characterized in that: the profile of described die head heating jacket (9) rear end is external thread structure, die head heating jacket (9), by a female adpting flange of band, is connected on extruder by this helicitic texture.

3. according to the fast replacing device of plastic profile extrusion molding mold die head according to claim 1, it is characterized in that: the inside of described die head heating jacket (9), be arranged to the circular inner hole of two different-diameters, the position that the large footpath of its endoporus is combined with path defines axial location step (10); First piece of template of described a whole set of die head is large footpath, and its appearance and size coordinates with the large footpath of die head heating jacket (9); The profile of all the other templates of die head is path, coordinates with the path of die head heating jacket (9).

4. according to the fast replacing device of plastic profile extrusion molding mold die head according to claim 3, it is characterized in that: on the path of the endoporus of described die head heating jacket (9), be provided with direction of rotation locating slot (11); Described direction of rotation locating slot (11) is coordinated with the template of die head by positioning key.

5. according to the fast replacing device of plastic profile extrusion molding mold die head according to claim 1, it is characterized in that: described heating plate comprises upside heating plate (5), right side heating plate (6), downside heating plate (7) and left side heating plate (8), is arranged on respectively on the upper side of die head heating jacket (9), right flank, downside and left surface.