CN204977372U - Double -deck head structure of blowing machine - Google Patents

Abstract

<b>The utility model discloses a double-layer head structure of a blow molding machine, which includes a diverter ring with an outer ring and an inner ring, a tail mold seat and an outer mold sleeve axially connected to both sides of the outer ring, The splitter cone and the splitter spiral core are axially connected on both sides of the inner ring, the splitter cone is located at the axial center of the end die seat, and the splitter spiral core is located at the outer die sleeve At the position of the axial center, a layered spacer ring is arranged between the split screw core and the outer mold casing, and forms an outer feed channel and an inner feed channel. In this design, the inner tube blank and the outer tube blank are compounded and pass through the surface of the diverting spiral core, and then extruded from the mouth die and the mandrel to form a double-layer tube blank required by the blow molding process, and the product has good performance. </b>

Description

Blow molding machine double-layer head structure

technical field

The utility model relates to a double-layer head structure of a blow molding machine.

Background technique

With the continuous improvement of user requirements, the requirements for the overall strength and outer surface finish of blow molded products are getting higher and higher, which requires high inner strength and good outer surface finish of the tube blank before blow molding. In the traditional double-layer die, the material on the outer wall of the double-wall pipe mold in the technology runs almost along a straight channel after entering the outer wall flow channel, and does not have the function of improving the plasticizing performance of the raw material, resulting in products that cannot meet the demand.

Utility model content

In view of the above-mentioned technical deficiencies, the purpose of this utility model is to provide a double-layer head structure of a blow molding machine. The inner and outer layers of materials enter through the feeding channel respectively, and after compounding, pass through the surface of the diverting spiral core, and then extrude the core mold of the die. Form the double-layer tube blank required by the blow molding process, and the product has good performance.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A double-layer head structure of a blow molding machine, including a diverter ring with an outer ring and an inner ring, a tail mold seat and an outer mold sleeve axially connected to both sides of the outer ring, and an outer mold sleeve axially connected to the The splitter cones and splitter spiral cores on both sides of the inner ring, the splitter cones are located at the axial center of the end mold base, the splitter spiral cores are located at the axial center of the outer mold sleeve, the A layered spacer ring is arranged between the splitter spiral core and the outer mold sleeve, and a first outer feed channel is formed between the outer wall of the splitter cone and the inner wall of the tail die seat, and the outer The second outer feed channel is formed between the ring and the inner ring, the third outer feed channel is formed between the outer wall of the layered spacer ring and the inner wall of the outer die sleeve, and the tail die An outer layer feed port is opened on the seat, and the outer layer feed port, the first outer feed channel, the second outer feed channel, and the third outer feed channel are arranged successively. Through, the outer ring and the inner ring are connected by a plurality of radially extending connecting ribs, one of the connecting ribs is provided with an inner layer feeding port, and the other of the connecting ribs There are air blowing holes in the mold, and an inner feed channel is formed between the inner wall of the layered spacer ring and the outer wall of the split spiral core, and the inner layer feed port and the inner feed channel interlinked.

Preferably, the connecting ribs include four narrow connecting ribs and two wide connecting ribs, and the two wide connecting ribs are arranged along the diameter direction, and the inner layer feeding port and the blowing hole in the mold are respectively set in On the two wide connecting ribs.

Preferably, the outer wall of the flow-dividing spiral core is provided with a spiral guide groove.

Further preferably, one end of the split spiral core is provided with an inclined channel, one end of the inclined channel is connected to the inner layer feed port, and the other end is connected to the spiral guide groove.

Preferably, one end of the split spiral core far away from the split ring is connected with a mandrel, and the end of the outer mold sleeve far away from the split ring is connected with a die, and the core die is The coaxial center is arranged in the said die.

The beneficial effect of the utility model is that: in this design, the outer layer material enters through the diverter cone and enters the diverter ring through the outer layer feed port of the tail mold base, and the cylindrical material entering through the diverter ring is evenly divided into ring-shaped tube blanks for coating On the outer wall of the layered spacer ring, the material in the inner layer flows into the diversion spiral core through the diversion ring, and the inflowing cylindrical material is distributed through the spiral diversion groove and then covered on the outer surface of the diversion spiral core to form a circular tube blank. After the inner tube blank and the outer tube blank are compounded, they pass through the surface of the diverting spiral core, and then extruded from the die and the mandrel to form a double-layer tube blank required by the blow molding process. The product has good performance.

Description of drawings

Accompanying drawing 1 is the schematic diagram of the double-layer head structure of the blow molding machine of this embodiment.

In the attached drawings: 01, diverter ring; 02, tail mold base; 03, outer mold cover; 04, diverter cone; 05, diverter spiral core; 06, layered spacer ring; 07, first outer feed channel; The third outer feed channel; 09, outer layer feed port; 10, inner layer feed port; 11, inner feed channel; 12, spiral diversion groove; 13, inclined channel; 14, mandrel; 15, port mold.

detailed description

The utility model is described in detail below in conjunction with the embodiment shown in the accompanying drawings:

As shown in Figure 1, a double-layer head structure of a blow molding machine includes a splitter ring 01 with an outer ring and an inner ring, a tail die holder 02 axially connected to both sides of the outer ring, and an outer mold The sleeve 03, the splitter cone 04 and the splitter spiral core 05 axially connected to both sides of the inner ring, the splitter cone 04 is located at the axial center of the end die seat 02, and the splitter spiral core 05 is located at the axial center of the outer die sleeve 03, a layered spacer ring 06 is arranged between the splitter spiral core 05 and the outer die sleeve 03, and the outer wall of the splitter cone 04 is in contact with the The first outer feed channel 07 is formed between the inner walls of the tail mold base 02, the second outer feed channel is formed between the outer ring and the inner ring, and the outer wall of the layered spacer ring 06 and The third outer feeding channel 08 is formed between the inner walls of the outer mold cover 03, and the outer layer feeding port 09 is opened on the described tail die base 02, and the outer layer feeding port 09, the described The first outer feed channel 07, the second outer feed channel, and the third outer feed channel 08 are sequentially connected, and the outer ring and the inner ring are connected by a plurality of radial Extended connecting ribs are connected, wherein one of the connecting ribs is provided with an inner layer feed port 10, and the other of the connecting ribs is provided with an in-mold blowing hole, and the inner wall of the layered spacer ring 06 is connected to the An inner feed channel 11 is formed between the outer walls of the split spiral core 05, and the inner layer feed port 10 communicates with the inner feed channel 11, wherein the connecting ribs include four narrow Connecting ribs and two wide connecting ribs, the two wide connecting ribs are set along the diameter direction, the inner layer feed port 10 and the blowing hole in the mold are respectively opened on the two wide connecting ribs, the said shunt The outer wall of the spiral core 05 is provided with a spiral guide groove 12, and one end of the diversion spiral core 05 is provided with an inclined channel 13, and one end of the inclined channel 13 is connected to the inner layer feed port 10, and the other end is connected to the inner layer. To the spiral guide groove 12, the end of the split spiral core 05 away from the split ring 01 is connected with a mandrel 14, and the outer mold sleeve 03 is far away from the split ring 01. A die 15 is connected to one end, and the core die 14 is coaxially arranged in the die 15 .

In this design, the outer layer material enters from the outer layer feed port 09 of the end mold base 02, passes through the diverter cone 04 and enters the diverter ring 01, and the cylindrical material entering through the diverter ring 01 is evenly divided into ring-shaped tube blanks and coated in layers The outer wall of the spacer ring 06 and the inner material pass through the diverter ring 01 and flow into the diverter spiral core 05. The inflowing cylindrical material is distributed through the spiral diversion groove 12 and then coated on the outer surface of the diverter spiral core 05 to form a circular tube blank. After the inner tube blank and the outer tube blank are compounded, they pass through the surface of the diverting spiral core 05, extruded from the gap between the die 15 and the core mold 14 to form a double-layer tube blank required by the blow molding process, and the product has good performance.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (5)

1. A double-layer head structure of a blow molding machine, characterized in that: comprise a diverter ring with an outer ring and an inner ring, an end die holder and an outer die sleeve, and a shaft that are axially connected to both sides of the outer ring To the splitter cone and the splitter spiral core connected to both sides of the inner ring, the splitter cone is located at the axial center of the end mold base, and the splitter spiral core is located at the outer die sleeve At the axial center position, a layered spacer ring is provided between the splitter spiral core and the outer die sleeve, and the first outer feed is formed between the outer wall of the splitter cone and the inner wall of the end die seat channel, the second outer feed channel is formed between the outer ring and the inner ring, and the third outer feed channel is formed between the outer wall of the layered spacer ring and the inner wall of the outer die casing , the outer layer feed port is opened on the tail mold base, the outer layer feed port, the first outer feed channel, the second outer feed channel, the third The outer feed passages are connected sequentially, the outer ring and the inner ring are connected by a plurality of radially extending connecting ribs, one of the connecting ribs is provided with an inner layer feeding port, and the other One of the connecting ribs is provided with an in-mold blowing hole, and an inner feeding channel is formed between the inner wall of the layered spacer ring and the outer wall of the split spiral core, and the inner layer feeding port is connected to the The above-mentioned internal feed channel is connected. 2. The double-layer head structure of blow molding machine according to claim 1, characterized in that: the connecting ribs include four narrow connecting ribs and two wide connecting ribs, and the two wide connecting ribs are arranged along the diameter direction, The inner layer feed inlet and the blowing hole in the mold are set on two wide connecting ribs respectively. 3. The double-layer head structure of the blow molding machine according to claim 1, characterized in that: the outer wall of the diverting spiral core is provided with a spiral guide groove. 4. The double-layer head structure of the blow molding machine according to claim 3, characterized in that: one end of the split spiral core is provided with an inclined channel, and one end of the inclined channel is connected to the inner layer of the feeding material. The mouth and the other end are connected to the spiral diversion groove. 5. The double-layer head structure of blow molding machine according to claim 1, characterized in that: the end of the split spiral core far away from the split ring is connected with a mandrel, and the outer mold sleeve A die is connected to the end far away from the splitter ring, and the core die is coaxially arranged in the die.