Multi-layer composite distributor with automatic rotary flow dividing rod
Technical Field
The invention relates to a fluid distribution device, in particular to a multilayer composite distributor with an automatic rotating flow dividing rod, which is arranged between an extruder and an extrusion flat die head and is used for producing plastic sheets and plates in an extrusion production line.
Background
The existing extrusion production line for producing plastic sheets and films consists of an extruder and a composite film machine head, different materials are combined, and the thickness of each layer is set according to requirements. The composite membrane machine head comprises a composite distributor and a flat membrane head. The composite distributor includes an organism, a split core rod, and a layered flow regulating structure. Currently, the article structure of a multilayer coextrusion dispenser is typically a planar superposition of layers of raw materials. However, there is a great demand for a marble-like decorative board in the market, the surface of which presents a discontinuous pattern in irregular cloud and fog state, which is popular with consumers, and is suitable for various home and interior decoration.
Disclosure of Invention
In view of the above problems, the present invention aims to provide a multi-layer composite dispenser with an automatic rotating dispensing rod, so that one layer of raw materials of a multi-layer product presents an intermittent and irregular cloud-like composite layer.
The technical scheme of the invention is that the multilayer composite distributor with the automatic rotary distribution rod comprises a distributor body, wherein one end of the distributor body is provided with a plurality of material flow passage inlets, the other end of the distributor body is provided with a material flow passage outlet, the middle part of the distributor body is provided with a multilayer material merging cavity communicated with the material flow passage inlets and the material flow passage outlets, two side surfaces of the multilayer material merging cavity are connected with a distributor side cover plate, the outer side of the distributor side cover plate is provided with a motor and a rotary distribution rod driven by the motor, the front end of the rotary distribution rod is inserted into one of the material flow passages in the multilayer material merging cavity, the front end of the rotary distribution rod is provided with intermittent inclined grooves, the inclined grooves are uniformly distributed along the circumferential direction, when the inclined grooves are contacted with the material flow passages, and when the cylindrical surfaces between the two inclined grooves are contacted with the material flow passages, the material flow passages are sealed.
Preferably, each material flow passage in the multi-layer material converging cavity is provided with a flow control groove near the junction, and the front end of the rotary distribution rod is inserted into the flow control groove and controls the opening and closing of the material flow passages through the rotation of the rotary distribution rod.
Preferably, a connecting plate is connected to the outer side of the side cover plate of the distributor body, which is far away from the motor, a flow blocking rod is connected to the connecting plate, an axial cutting groove is formed in the flow blocking rod, the flow blocking rod is matched with a flow control groove at the junction of the flow blocking rod and the material flow channel in the multi-layer material converging cavity after being inserted into the distributor body, if the cutting groove of the flow blocking rod faces one side of the material flow channel, the material flow channel is kept in an unblocked state, and if the cutting groove of the flow blocking rod is far away from one side of the material flow channel, the material flow channel is kept in a closed state.
Preferably, a layered conversion core rod is arranged on the distributor body between the material flow passage inlet and the multi-layer material converging cavity, a plurality of non-communicated pore passages and notches are formed in the layered conversion core rod, and each material flow passage inlet is communicated into one of the material flow passages on the multi-layer material converging cavity through a corresponding pore passage or notch.
Preferably, a corresponding sealing plate is arranged at the layering conversion core rod on the distributor body.
Preferably, the number of the material flow passage inlets is 3-5, and the material flow passage inlets are respectively arranged on at least two surfaces of the upper surface, the side surface and the lower surface of the distributor body.
Preferably, a speed reducer is arranged between the motor and the rotary distribution rod, a motor mounting plate is connected to the side cover plate of the distributor, and the motor is mounted on the motor mounting plate.
Preferably, the distributor side cover plate is provided with an adjusting pressing plate and a shaft sleeve, the rotary distributing rod is arranged on the distributor side cover plate through the shaft sleeve, and a sealing assembly is arranged between the rotary distributing rod and the distributor side cover plate.
According to the invention, intermittent material feeding of one feeding flow channel is realized through rotation of the rotary distribution rod, so that one layer of the multi-layer composite product is in an intermittent structure during discharging, and the intermittent and irregular cloud-like composite layer is integrally displayed, so that the original effect is not lost due to falling and the like caused by time change in the later use process.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic view of the structure of the dispenser body according to the present invention;
FIG. 6 is a front view of FIG. 5;
FIG. 7 is a cross-sectional view taken along the direction B-B of FIG. 6;
wherein: 1-a distributor body; 2-material flow channel inlet; 3-material flow channel outlet; 4-a multi-layer material converging cavity; 5-distributor side cover plate; 6, a motor; 7-rotating the dispensing bar; 8-chute; 9-a flow control tank; 10-connecting plates; 11-a flow blocking rod; 12-grooving; 13-layering conversion core rod; 14-pore canal; 15-notch; 16-sealing plate; 17-a speed reducer; 18-a motor mounting plate; 19-adjusting the pressing plate; 20-shaft sleeve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, the invention provides a multilayer composite distributor with an automatic rotary distribution rod, which comprises a distributor body 1, wherein one end of the distributor body 1 is provided with a plurality of material flow passage inlets 2, the other end of the distributor body 1 is provided with material flow passage outlets 3, the middle part of the distributor body 1 is provided with a multilayer material merging cavity 4 which is communicated with the material flow passage inlets 2 and the material flow passage outlets 3, two side surfaces of the multilayer material merging cavity 4 are connected with a distributor side cover plate 5, the outer side of the distributor side cover plate 5 is provided with a motor 6 and a rotary distribution rod 7 driven by the motor 6, the front end of the rotary distribution rod 7 is inserted into one of the material flow passages in the multilayer material merging cavity 4, the front end outer side surface of the rotary distribution rod 7 is provided with intermittent chute 8, the chute 8 is uniformly distributed along the circumferential direction, when the chute 8 contacts with the material flow passage, and when the cylindrical surface between the two chute 8 contacts with the material flow passage, the material flow passage is sealed.
Preferably, each material flow passage in the multi-layer material converging cavity 4 is provided with a flow control groove 9 near the junction, and the front end of the rotary distribution rod 7 is inserted into the flow control groove 9 and controls the opening and closing of the material flow passages by the rotation of the rotary distribution rod 7.
Preferably, a connecting plate 10 is connected to the outer side of the side cover plate 5 of the distributor body 1, which is far away from the motor 6, a flow blocking rod 11 is connected to the connecting plate 10, an axial slot 12 is arranged on the flow blocking rod 11, the flow blocking rod 11 is matched with the flow control slot 9 at the junction of the material flow channels in the multi-layer material converging cavity 4 after being inserted into the distributor body 1, if the slot 12 of the flow blocking rod 11 faces one side of the material flow channel, the material flow channel is kept in an unblocked state, and if the slot 12 of the flow blocking rod 11 is far away from one side of the material flow channel, the material flow channel is kept in a closed state.
Preferably, a layered conversion core rod 13 is disposed on the distributor body 1 between the material flow channel inlet 2 and the multi-layer material converging cavity 4, and a plurality of non-communicated channels 14 and notches 15 are formed on the layered conversion core rod 13, and each material flow channel inlet 2 is communicated into one of the material flow channels on the multi-layer material converging cavity 4 through a corresponding channel 14 or notch 15.
Preferably, a corresponding sealing plate 16 is arranged at the layering transition mandrel 13 on the distributor body 1.
Preferably, the number of the material flow passage inlets 2 is 3-5, and the material flow passage inlets are respectively arranged on at least two surfaces of the upper surface, the side surface and the lower surface of the distributor body 1.
Preferably, a speed reducer 17 is arranged between the motor 6 and the rotary distributing rod 7, a motor mounting plate 18 is connected to the side cover plate 5 of the distributor, and the motor 6 is mounted on the motor mounting plate 18.
Preferably, the distributor side cover plate 5 is provided with an adjusting pressing plate 19 and a shaft sleeve 20, the rotary distributing rod 7 is mounted on the distributor side cover plate 5 through the shaft sleeve 20, and a sealing assembly 21 is arranged between the rotary distributing rod 7 and the distributor side cover plate 5, and the sealing assembly 21 comprises a sealing sleeve and a sealing ring.
When the plastic in a molten state is used, different types of plastics enter through different material flow passage inlets 2, independent pore passages 14 and notches 15 in the layered conversion core rod 13 respectively enter material flow passages of the multilayer material merging cavity 4, for example, four types of plastics in a molten state, such as a, b, c, d, enter from four material flow passage inlets 2 at the front end of the distributor body 1 respectively, one material flow passage inlet 2 is positioned on the lower surface, one material flow passage inlet is positioned on the side surface, two material flow passages are positioned on the upper surface, respectively enter into four material flow passages in the multilayer material merging cavity 4 through respective flow passages, wherein the material flow passage in which the plastic a is positioned directly enters the multilayer material merging cavity 4, the material flow passage in which the plastic b is positioned is provided with a flow control groove 9 at a position close to the multilayer material merging cavity 4, the front end of the rotary distribution rod 7 is inserted into the flow control groove 9, the intermittent closure of the material flow passage is controlled through the rotary control of the chute 8 of the rotary distribution rod 7, the intermittent feed of the plastic b is achieved, the plastic b is in a state of intermittent and cloud in which the plastic b is finally, the plastic in the composite layer product is in which the composite material flow passage is in a state, the plastic c and d is positioned at a position close to the position of the multilayer material merging cavity 4, the required to be discharged from the flow control groove 3, and the required to be discharged from the multilayer material flow control groove is arranged, and the flow control groove is in the direction of the composite material flow control groove is not in the direction of the multilayer material merging cavity 4, and the plastic flow control groove is arranged, and the required to be discharged from the material flow control groove is 3. The invention is also suitable for composite layers of two plastics, three plastics and five plastics, and only the number of the material flow passage inlets 2 and the number of the material flow passages of the multi-layer material converging cavity 4 are in one-to-one correspondence.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, but any simple modification, equivalent variation or modification made to the above embodiments according to the technical principles of the present invention still falls within the scope of the technical solutions of the present invention.