CN205685704U - A three-color sheath extrusion head - Google Patents

Abstract

The utility model discloses a machine head is extruded to three minutes look sheaths, which comprises a bod, install the mold core in the first passageway of organism, locating piece and die sleeve, the rear end of die sleeve is installed through the screw thread and is transferred the look ring, transfer the look ring suit in the outside of mold core and with the mold core between closely cooperate, first through-hole intercommunication is located the first cavity that forms between the anterior die sleeve of mixing the look ring and mold core, install the mouth of moulding plastics in the first through-hole, it is provided with three recess to transfer the look ring to be located the face of cylinder of die sleeve rear side, still correspond the through-hole that is provided with every recess of intercommunication and first cavity on transferring the look ring, be provided with the three ribbon feed port that communicates the three recess of mixing the look ring respectively on the organism, the front end of die sleeve is. The utility model has the advantages that: the structure is simple, the coaxiality is high, the offset adjustment is not needed, the temperature of the machine body can be accurately controlled, the processing quality is ensured, and the phenomenon of scorching of injection molding materials is avoided; can accomplish the feeding of three-colour strip, realize the processing of three-colour sheath cable.

Description

A three-color sheath extrusion head

technical field

The utility model relates to the technical field of cable manufacturing equipment, in particular to a three-color sheath extrusion head.

Background technique

With the development of social technology and economy, the competition has become increasingly fierce. In industries such as wire and cable production, there is an urgent need to improve product quality and simplify operations. The extrusion of all wire and cable insulation and sheath layers has high requirements on the concentricity of conductors and insulation layers, cable cores and sheaths. Previously, the traditional extrusion method was to manually adjust the deviation (requires continuous debugging-trial production-debugging until the concentricity of the produced product meets the requirements). Every time the specification is changed, it needs to be readjusted, which takes a lot of time to align the deviation. And there is a large amount of scrapping in the deviation adjustment, which is labor-intensive, time-consuming, and cost-intensive. It can be seen from the above that it is necessary to improve the structure of the existing extrusion equipment.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the prior art and provide a three-color sheath extruder head.

The purpose of the utility model is achieved through the following technical solutions: a three-color sheath extrusion head, including a body, the inside of the body has a first channel extending in the axial direction, and the body is also provided with a radially extending The first through hole, the side wall of the first passage is provided with an internal thread, the mold core is installed through the thread in the first passage, and the positioning block is installed through the thread in the first passage at the rear of the mold core, and the mold core There is a positioning groove on the rear end surface of the positioning block, and a positioning protrusion matching the positioning groove is provided on the front end surface of the positioning block. The positioning protrusion is inserted into the positioning groove and is located in the first channel at the front of the core. The mold sleeve is installed through the thread, and the rear end of the mold sleeve is installed with the color ring through the thread. The color ring is set on the outside of the mold core and closely fits with the mold core. The first through hole communicates with the mold located at the front of the color ring. In the first cavity formed between the sleeve and the mold core, an injection nozzle is installed in the first through hole, and the toning ring is provided with three grooves on the cylindrical surface at the rear side of the mold sleeve. three grooves and the through hole of the first cavity, the body is provided with three color bar feeding holes respectively connected to the three grooves of the color ring, the front end of the mold sleeve is connected with a suction hood, and the suction hood has a The outlet for cables to be exported, the upper end of the suction hood has a suction port, the suction port is connected to the exhaust fan through a pipeline, a heat exchange cavity is provided in the body, and a heat exchange medium is provided in the heat exchange cavity The inlet and the outlet of the heat exchange medium. The heat exchange medium inlet of the heat exchange chamber is connected to the tube side of the heat exchanger, the first delivery pump and the heat transfer oil storage tank in turn. The heat transfer oil storage tank is equipped with a heater and a heat exchanger. The water inlet end of the shell side of the heat exchanger is connected to the second delivery pump and the cooling water tower, and the water outlet end of the shell side of the heat exchanger is connected to the warm water recovery tank. The body is also equipped with a temperature sensor for monitoring the body temperature, a heater, a temperature The sensor and the second delivery pump are respectively connected with the same controller, and the controller controls the working state of the second delivery pump through the temperature measured by the temperature sensor, so as to realize the cooling of the body and ensure the processing quality of the product.

The mold core has an axial through hole, the mold base has a through hole coaxially arranged with the axial through hole of the mold core, and the positioning block is provided with an axial through hole communicating with the axial hole of the mold core.

The utility model has the following advantages:

The utility model has the advantages of simple structure, high coaxiality, no need for deviation adjustment, precise control of body temperature, avoiding overheating of the body, ensuring processing quality, and avoiding the occurrence of scorched plastic injection; it can complete feeding of three-color strips , to realize the processing of three-color sheathed cables.

Description of drawings

Fig. 1 is a structural schematic diagram of the utility model.

In the figure, 1-body, 2-mold core, 3-positioning block, 4-mold sleeve, 5-heat exchange cavity, 6-heat exchanger, 7-first delivery pump, 8-heat transfer oil storage tank, 9-heater, 10-second delivery pump, 11-cooling water tower, 12-warm water recovery tank, 13-temperature sensor, 14-color ring, 15-color bar feed hole, 16-suction hood, 17- Outlet, 18-suction port.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figure 1, a three-color sheath extrusion head includes a body, the inside of the body has a first channel extending in the axial direction, and the body is also provided with a first through hole extending in the radial direction. The side wall of a passage is provided with an internal thread, and a mold core is installed through a thread in the first passage, and a positioning block is installed through a thread in the first passage at the rear of the mold core, and the rear end surface of the mold core is provided with a Positioning groove, the front end surface of the positioning block is provided with a positioning protrusion matching the positioning groove, the positioning protrusion is inserted into the positioning groove, and the mold sleeve is installed through the thread in the first channel at the front of the mold core , the rear end of the mold sleeve is threaded with a toning ring, the toning ring is set on the outside of the mold core and fits closely with the mold core, and the first through hole is connected between the mold sleeve and the mold core at the front of the toning ring to form a In the first cavity of the first through hole, an injection nozzle is installed in the first through hole, and the toning ring is provided with three grooves on the cylindrical surface at the rear side of the mold sleeve. The through hole of the cavity, the body is provided with three color bar feeding holes respectively connected to the three grooves of the color ring, the front end of the mold sleeve is connected with a suction hood, and the suction hood has an outlet for the cable to lead out The upper end of the suction hood has a suction port, and the suction port is connected to the exhaust fan through a pipeline. The body is provided with a heat exchange cavity, and the heat exchange cavity is provided with a heat exchange medium inlet and a heat exchange medium outlet. , the heat exchange medium inlet of the heat exchange cavity is sequentially connected to the tube side of the heat exchanger, the first delivery pump and the heat transfer oil storage tank, a heater is arranged inside the heat transfer oil storage tank, and the water inlet of the shell side of the heat exchanger The end is connected to the second delivery pump and the cooling water tower, and the water outlet end of the shell side of the heat exchanger is connected to the warm water recovery tank. The body is also equipped with a temperature sensor for monitoring the temperature of the body, a heater, a temperature sensor and the second delivery pump They are respectively connected to the same controller, and the controller controls the working state of the second conveying pump through the temperature measured by the temperature sensor, so as to realize the cooling of the body and ensure the processing quality of the product.

The mold core has an axial through hole, the mold base has a through hole coaxially arranged with the axial through hole of the mold core, and the positioning block is provided with an axial through hole communicating with the axial hole of the mold core.

The utility model has the advantages of simple structure, high coaxiality, no need for deviation adjustment, precise control of body temperature, avoiding overheating of the body, ensuring processing quality, and avoiding the occurrence of scorched plastic injection; it can complete feeding of three-color strips , to realize the processing of three-color sheathed cables.

Claims (1)

1. a color separation sheathing head, it is characterised in that: including body, the inside of body has axially extended One passage, body is additionally provided with the first through hole radially extended, and the sidewall of first passage is provided with female thread, described Being provided with core rod by screw thread in one passage, the first passage at the rear portion being positioned at core rod is provided with locating piece, mould by screw thread It is provided with detent on the rear end face of core, the front end face of locating piece is provided with the positioning convex matched with detent, Positioning convex is plugged in detent, and the first passage being positioned at core rod anterior is provided with die sleeve by screw thread, after die sleeve Hold and by screw thread toning ring be installed, toning ring set be loaded on core rod outside and and core rod between closely cooperate, the first through hole connection Being positioned between the anterior die sleeve of toning ring and core rod the first cavity formed, be provided with injection nozzle in the first through hole, toning ring is positioned at It is provided with three grooves on the face of cylinder on rear side of die sleeve, toning ring is also correspondingly arranged on and connects each groove and the first cavity Through hole, body is provided with the vitta charging hole of three three grooves being respectively communicated with toning ring, and the front end of die sleeve connects suction Fan housing, described suspended hood has the line outlet derived for cable, and the upper end of suspended hood has inlet scoop, and inlet scoop is by pipeline even Connecing air exhauster, be provided with heat exchange cavity in described body, described heat exchange cavity is provided with heat exchange medium import and Re Jiao Changing media outlet, the heat exchange medium import of heat exchange cavity is sequentially connected with the tube side of heat exchanger, the first delivery pump and thermal conductance deep fat Storage tank, thermal conductance deep fat storage tank is internally provided with heater, and the water inlet end of the shell side of heat exchanger connects the second delivery pump and cooling water Tower, the water side of the shell side of heat exchanger connects warm water collection box, is also equipped with for monitoring machine temperature in described body Temperature sensor, heater, temperature sensor and the second delivery pump are connected with same controller respectively.