CN215396790U - Screw tail end supporting device for plastic granulating equipment - Google Patents

Abstract

The utility model provides a screw tail end supporting device for plastic granulation equipment, which comprises an extrusion cylinder, a screw, a transition body, a heater, a screw combining cap, a supporting shaft, a bearing seat, a sealing element, a bearing adjusting pad and a bearing shield, wherein the screw is arranged at the leftmost side of the screw tail end supporting device of the plastic granulation equipment, the extrusion cylinder is arranged outside the screw, a screw combining cap is arranged on the right end head of the screw, the supporting shaft which is horizontally arranged is connected with the right side of the screw combining cap, the transition body is respectively arranged at the upper side and the lower side of the screw combining cap, the transition body is connected with the left part of the supporting device through a bolt, the heater is fixed at the upper part of the transition body, the bearing seat is arranged at the right side of the transition body, the sealing element is arranged around the bearing seat, the sleeve-joint bearing is arranged at the right side of the supporting shaft, and the bearing adjusting pad is arranged at the right side of the bearing, and a bearing shield is arranged at the rightmost side of the supporting shaft.

Description

Screw tail end supporting device for plastic granulating equipment

Technical Field

The utility model relates to a supporting device, in particular to a screw tail end supporting device for plastic granulating equipment.

Background

The main machine of the plastic granulating equipment is an extruding machine which consists of an extruding system, a transmission system and a heating and cooling system. The extrusion system comprises a screw, a barrel, a hopper, a head, and a die, and the plastic is plasticized into a uniform melt by the extrusion system and continuously extruded by the screw under pressure established in the process. Screw rod: is the most important component of the extruder, is directly related to the application range and the productivity of the extruder, and is made of high-strength corrosion-resistant alloy steel; a machine barrel: is a metal cylinder, which is generally made of alloy steel with high heat resistance and compressive strength, firmness, wear resistance and corrosion resistance or composite steel pipe lined with alloy steel. The machine barrel is matched with the screw rod to realize the crushing, softening, melting, plasticizing, exhausting and compacting of the plastic, and continuously and uniformly convey the rubber material to the molding system. The length of a common machine barrel is 15-30 times of the diameter of the common machine barrel, so that the principle of fully heating and fully plasticizing plastic is adopted; hopper: the bottom of the hopper is provided with a cut-off device so as to adjust and cut off the material flow, and the side surface of the hopper is provided with a sight hole and a calibration metering device; a machine head and a die: the machine head is composed of an alloy steel inner sleeve and a carbon steel outer sleeve, and a forming die is arranged in the machine head. The machine head is used for converting the plastic melt in rotary motion into parallel linear motion, uniformly and stably guiding the plastic melt into the die sleeve, and endowing the plastic with necessary forming pressure. The plastic is plasticized and compacted in the machine barrel, flows into a machine head forming die through a porous filter plate along a certain flow passage through a machine head neck, and is properly matched with a die core die sleeve to form an annular gap with a continuously reduced section, so that the plastic melt forms a continuous and compact tubular coating layer around the core wire. In order to ensure that a plastic flow channel in the machine head is reasonable and eliminate dead angles for storing plastic, a shunt sleeve is often arranged, and a grading ring is also arranged for eliminating pressure fluctuation during plastic extrusion. The machine head is also provided with a mould correcting and adjusting device which is convenient for adjusting and correcting the concentricity of the mould core and the mould sleeve.

The drive system is used for driving the screw, and the torque and the rotating speed required by the screw in the extrusion process are supplied to the screw, and the screw is usually composed of a motor, a reducer, a bearing and the like.

Heating and cooling are necessary conditions for the plastic extrusion process to be able to proceed.

(1) At present, the plastic extruding machine is generally heated by electricity, which is divided into resistance heating and induction heating, and heating sheets are arranged on the machine body, the machine neck and each part of the machine head. The heating device heats the plastic in the cylinder from the outside to reach the temperature required by the process operation.

(2) The cooling device is provided to ensure that the plastic is in the temperature range required by the process. In particular to remove the excessive heat generated by the shearing friction of the rotation of the screw so as to avoid the difficulty of decomposing, scorching or shaping the plastic caused by overhigh temperature. The cooling of the machine barrel is divided into water cooling and air cooling, generally, the air cooling of a small and medium-sized plastic extruding machine is suitable, and the water cooling or the combination of the two forms is mostly adopted for cooling in a large-sized plastic extruding machine; the screw cooling mainly adopts central water cooling, and aims to increase the solid conveying rate of materials, stabilize the glue yield and improve the product quality; but the cooling at the hopper is used for enhancing the conveying effect on the solid materials, preventing plastic granules from being sticky due to temperature rise to block a material port and ensuring the normal work of a transmission part.

The tail end of a screw of the traditional plastic granulating equipment is not provided with a supporting device, so that the supporting device at the tail end of the screw of the plastic granulating equipment is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a screw tail end supporting device of plastic granulating equipment.

The utility model provides the following technical scheme:

a screw tail end supporting device for plastic granulation equipment is characterized by comprising an extrusion cylinder, a screw, a transition body, a heater, a screw combining cap, a supporting shaft, a bearing seat, a sealing element, a bearing adjusting pad and a bearing shield, wherein the screw is arranged on the leftmost side of the screw tail end supporting device of the plastic granulation equipment, the extrusion cylinder is arranged outside the screw, the screw combining cap is arranged on the end head of the right side of the screw, the supporting shaft which is horizontally arranged is connected to the right side of the screw combining cap, the transition body is respectively arranged on the upper side and the lower side of the screw combining cap, the transition body is connected with the left part of the supporting device through bolts, the heater is fixed on the upper part of the transition body through four bolts, the bearing seats are respectively arranged on the right sides of the upper part and the lower part of the transition body, the sealing element is arranged around the bearing seats, and the sleeve bearings are arranged at the positions, close to the end heads, on the right sides of the supporting shafts, the right side position of bearing is provided with bearing adjusting pad, the rightmost side of back shaft is provided with the bearing guard shield.

Preferably, the screws are positioned on the same horizontal plane and are arranged in two in number.

Preferably, the heater is hollow and annular.

Preferably, a total of 4 bolts are arranged on the left side and the right side of the right part of the supporting device.

Preferably, the bearing shield is constructed of a stainless steel material.

The utility model has the beneficial effects that:

1. the utility model provides a screw tail end supporting device of plastic granulating equipment, which is provided with an extrusion cylinder, a screw, a transition body, a heater, a screw combining cap, a supporting shaft, a bearing seat, a sealing element, a bearing adjusting pad and a bearing shield.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the present invention;

notation in the figure: the device comprises an extrusion cylinder body 1, a screw rod 2, a transition body 3, a heater 4, a screw rod cap 5, a support shaft 6, a bearing seat 7, a sealing element 8, a bearing 9, a bearing adjusting pad 10 and a bearing shield 11.

Detailed Description

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model. In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

As shown in fig. 1-2, a screw terminal supporting device for a plastic granulation device comprises an extrusion cylinder 1, a screw 2, a transition body 3, a heater 4, a screw combining cap 5, a supporting shaft 6, a bearing seat 7, a sealing member 8, a bearing 9, a bearing adjusting pad 10 and a bearing shield 11, wherein the screw 2 is arranged on the leftmost side of the screw terminal supporting device of the plastic granulation device, the extrusion cylinder 1 is arranged outside the screw 2, the screw combining cap 5 is arranged on the right end of the screw 2, the supporting shaft 6 is horizontally arranged on the right side of the screw combining cap 5, the transition bodies 3 are respectively arranged on the upper side and the lower side of the screw combining cap 5, the transition bodies 3 are connected with the left part of the supporting device through bolts, the heater 4 is fixed on the upper part of the transition bodies 3 through four bolts, the bearing seats 7 are respectively arranged on the right sides of the upper part and the lower part of the transition bodies 3, a sealing element 8 is arranged around the bearing seat, a sleeve bearing 9 is arranged at the position, close to the end, of the right side of the supporting shaft 6, a bearing adjusting pad 10 is arranged at the position of the right side of the bearing 9, and a bearing shield 11 is arranged at the rightmost side of the supporting shaft 6. The screw rods 2 are positioned on the same horizontal plane and are arranged into two in number. The heater 4 is hollow and annular. The left and right sides of strutting arrangement right part is provided with totally 4 bolts. The bearing shield 11 is made of stainless steel.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a be used for plastics granulation equipment screw rod end strutting arrangement, characterized in that, includes extrudes barrel (1), screw rod (2), transition body (3), heater (4), screw rod and cap (5), back shaft (6), bearing frame (7), sealing member (8), bearing (9), bearing adjustment pad (10), bearing guard shield (11), the leftmost side of plastics granulation equipment screw rod end strutting arrangement is screw rod (2), the outside of screw rod (2) is provided with extrudes barrel (1), be provided with screw rod and cap (5) on the right side end of screw rod (2), the right side of screw rod and cap (5) is connected with the back shaft (6) that the level set up, the upper and lower both sides of screw rod and cap (5) are provided with transition body (3) respectively, transition body (3) are connected with the left part of strutting arrangement through the bolt, the upper portion of the transition body (3) is fixed with a heater (4) through four bolts, the right sides of the upper and lower two parts of the transition body (3) are respectively provided with a bearing seat (7), a sealing element (8) is arranged around the bearing seat, a position, close to the end, of the right side of the supporting shaft (6) is provided with a sleeving bearing (9), a bearing adjusting pad (10) is arranged at the right side position of the bearing (9), and a bearing shield (11) is arranged on the rightmost side of the supporting shaft (6).

2. Screw end support device for a plastic granulation plant according to claim 1, characterized in that said screws (2) are in position on the same horizontal plane, provided in number of two.

3. Screw end support device for a plastic granulation plant according to claim 1, characterized in that said heater (4) is hollow and circular.

4. The screw end supporting device for the plastic granulating equipment as claimed in claim 1, wherein a total of 4 bolts are arranged on the left and right sides of the right part of the supporting device.

5. Screw end support device for a plastic granulation plant according to claim 1, characterized in that said bearing shield (11) is made of stainless steel material.

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