CN109080101B - Wood-plastic wire production equipment and production method - Google Patents

Abstract

The invention provides a wood-plastic wire production device and a production method, wherein the production device comprises an extrusion device, a cooling device, a wire storage device and two groups of auxiliary units, wherein the auxiliary units comprise a traction device, a cutting device and a winding device; the extrusion device comprises an extruder, and an extrusion port of the extruder is provided with two extrusion heads; the first extruding machine head comprises a main runner insert, a split runner insert and two extruding inserts; the main runner outlet of the main runner insert is connected with the two split runner inlets of the split runner insert, and the two split runner outlets of the split runner insert are respectively connected with the extrusion runners of the two extrusion inserts; the wire storage device is provided with wire storage wheel sets respectively corresponding to the two extruded wires; the two groups of auxiliary units are respectively corresponding to the two extruded wires. After the wood plastic liquid is extruded from the extrusion device, the wire rod is coiled into a disc through the cooling device, the wire storage device, the traction device, the cutting device and the coiling device in sequence. The invention realizes the simultaneous winding of two strands of wires and improves the production efficiency.

Description

Wood-plastic wire production equipment and production method

Technical Field

The invention belongs to the technical field of wood-plastic wire extrusion equipment, and relates to wood-plastic wire production equipment and a production method.

Background

At present, no special extrusion equipment and production line for wood plastic materials exist in the market, and the use of each production line and equipment is referred to from some existing plastic extrusion production lines. The existing production line in the current market mainly comprises single-strand wire extrusion, and the production efficiency of the production line is low, so that the market of the wood-plastic wires with large demand cannot be met.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the wood-plastic wire production equipment and the production method, which can realize simultaneous winding of two strands of wires and improve the production efficiency.

The invention is realized by the following technical scheme:

the wood-plastic wire production equipment comprises an extrusion device, a cooling device, a wire storage device and two groups of auxiliary units, wherein each auxiliary unit comprises a traction device, a cutting device and a winding device;

the extrusion device comprises an extruder, and an extrusion port of the extruder is provided with two extrusion heads; the first extruding machine head comprises a main runner insert, a split runner insert and two extruding inserts; the main runner outlet of the main runner insert is connected with the two split runner inlets of the split runner insert, and the two split runner outlets of the split runner insert are respectively connected with the extrusion runners of the two extrusion inserts; a heating coil is sleeved outside the two extrusion heads;

the cooling device comprises a cooling water tank and is used for water cooling of the extruded wire; a first guide grooved wheel is arranged in the cooling water tank and used for guiding the extruded wire rods; the tail end of the cooling water tank is provided with a fan interface, and a blowing port on the fan interface is connected with an air outlet of the fan and is used for performing air cooling drying on the water-cooled wire rod;

the wire storage device comprises a wire storage frame, and wire storage wheel sets respectively corresponding to the two extruded wires are arranged on two sides of the wire storage frame;

the two groups of auxiliary units are respectively corresponding to the two extruded wires, and after the wood-plastic material liquid is extruded from the extrusion device, the wires are coiled into a disc through the cooling device, the wire storage device, the traction device, the cutting device and the coiling device in sequence.

Preferably, the first extruding machine head and the second extruding machine head further comprise a main runner fixing block and a split runner fixing block; the main runner fixing block is arranged on the peripheries of the main runner insert and the shunt runner insert and used for fixedly connecting the main runner insert and the shunt runner insert together; the sprue fixing block is provided with a mounting groove for embedding the sprue insert and a mounting groove for embedding the extrusion insert.

Further, two fixed block runners are arranged between the runner insert and the extrusion insert on the runner fixed block, and the two runners of the runner insert are respectively communicated with the extrusion runners of the two extrusion inserts through the two fixed block runners.

Preferably, the cooling water tank comprises a first section cooling water tank and a second section cooling water tank which are sequentially arranged, wherein the first section cooling water tank adopts warm water to primarily cool the wire rod, and the second section cooling water tank adopts cold water to secondarily cool the wire rod.

Preferably, the wire storage wheel group comprises a first wire storage wheel, a second wire storage wheel, a third wire storage wheel and a fourth wire storage wheel, wherein the first wire storage wheel and the second wire storage wheel are oppositely arranged front and back, and the third wire storage wheel and the fourth wire storage wheel are oppositely arranged up and down.

Further, the first wire storage wheel corresponds to the wire position coming out of the second section cooling water tank, and the second wire storage wheel corresponds to the wire position coming out of the fourth wire storage wheel.

Further, the end parts of the first wire storage wheel, the second wire storage wheel, the third wire storage wheel and the fourth wire storage wheel are all positioned by fixing rings.

Further, the diameter of the third wire storage wheel and the fourth wire storage wheel is 80-120mm, and the length of the third wire storage wheel and the fourth wire storage wheel is 200-300mm.

Preferably, the winding device further comprises an integrated machine support, the two groups of auxiliary units are respectively arranged on two sides of the integrated machine support, and the cutting device and the traction device are overhead to the front end of the winding device.

The production method of the wood-plastic wire rod is based on the production equipment, and the cooling water tank comprises a first section of cooling water tank and a second section of cooling water tank which are sequentially arranged from front to back; the method comprises the following steps:

step 1, extrusion working conditions: after the mixing of the extruder is finished, extruding two strands of wires after the molten materials flow through a first extruding machine head and a second extruding machine head, and leading the two strands of wires to enter a cooling device under the guidance of a guide grooved wheel;

step 2, cooling working conditions: the wire is subjected to first-stage cooling in warm water with the temperature of 40-50 ℃ in a first-stage cooling water tank, cooled and subjected to secondary cooling in cold water with the temperature of 20-30 ℃ in a second-stage cooling water tank, and finally dried through a blowing opening, and enters a wire storage device for wire storage;

step 3, storing the wire working condition: the wire storage device stores wires, and the wires enter an auxiliary unit with a traction winding cutting function for winding after being stored;

step 4, winding working conditions: after the cooling wire storage is completed, the left and right wires are respectively subjected to infrared counting cutting by a left and right cutting machine, and finally the two wires are synchronously wound into a disc.

Compared with the prior art, the invention has the following beneficial technical effects:

according to the invention, the sprue insert is arranged to divide a strand of wood plastic liquid into two strands, so that two strands of wires are extruded at one time on a production line, then the wire storage wheel set and the auxiliary unit which correspond to the two strands of wires respectively are arranged to realize synchronous cooling and wire storage, and finally synchronous winding is realized through traction cutting. The installation process of the production line is not required to be operated by a professional.

Furthermore, two fixed block flow passages are arranged on the flow passage fixed block, and the two fixed block flow passages are used for realizing the respective communication between the two flow passages of the flow passage insert and the two extrusion flow passages, so that the length of the extrusion insert can be shortened and the manufacturing difficulty of the extrusion insert can be reduced; on the other hand, the problem of adhesion between the sprue bushing and the extrusion bushing possibly caused by direct contact between the sprue bushing and the extrusion bushing can be prevented, and the extrusion bushing is convenient to detach, replace or maintain.

Further, the cooling water tanks are respectively divided into two sections, and cold water cooling is performed after warm water cooling is performed first, so that wire cooling uniformity can be ensured, and the problems of wire cooling uniformity and wire damage caused by direct cold water cooling are avoided.

Further, the first wire storage wheel corresponds to the wire rod from the second section cooling water tank, the second wire storage wheel corresponds to the wire rod from the fourth wire storage wheel, the wire rod can be prevented from bending in the left-right direction, deformation of the wire rod is avoided, and the quality of the wire rod is guaranteed.

Furthermore, the end part of the wire storage wheel is positioned by the fixing ring, so that dislocation can be avoided in the wire storage process.

Furthermore, the sizes of the third wire storage wheel and the fourth wire storage wheel are greatly reduced relative to the sizes of the traditional wire storage wheels, so that the wire storage wheels can be arranged on a wire storage frame, the wire storage frame is directly placed on the ground, the wire storage wheel frame does not need to be arranged at a very high position like the prior art, the wire storage device is more convenient to install, the size of the wire storage device is smaller, and the occupied space is saved while the requirement of ten meters of wires is met.

Furthermore, the common auxiliary machines are small in size and are arranged in a single machine mode, the occupied space is large, the mutual matching needs to be continuously adjusted, and the auxiliary machines are inconvenient to use. The cutting device and the traction device are overhead to the front end of the winding device, so that the occupied space is reduced, and meanwhile, the problem of complex track in the wire traction process is also solved. The auxiliary machines of the production line are simple in structure and easy to operate and learn.

According to the wood-plastic wire production method, a strand of wood-plastic liquid is divided into two strands, so that two strands of wires are extruded at one time on a production line, synchronous cooling and wire storage are realized through the wire storage wheel sets and the auxiliary machine sets which correspond to the two strands of wires respectively, and finally synchronous winding is realized through traction cutting, so that the production efficiency is improved from the source. Meanwhile, the cooling water tanks are respectively divided into two sections, and the cooling water tanks are cooled by cold water after being cooled by warm water, so that the wire cooling uniformity can be ensured, and the wire damage problem caused by uneven wire cooling caused by direct cold water cooling is avoided.

Drawings

FIG. 1 is a schematic diagram of a production line of the present invention.

FIG. 2 is a schematic view of a two-out extruder head structure according to the present invention.

Fig. 3 is a schematic structural view of the cooling device according to the present invention, wherein (a) is a top view and (b) is a front view.

Fig. 4 is a schematic structural diagram of the wire storage device of the present invention.

Fig. 5 is a schematic structural diagram of an all-in-one machine according to the present invention, wherein (a) is a left side view and (b) is a front view.

Fig. 6 is a schematic structural view of the traction device of the present invention.

Fig. 7 is a schematic structural view of a cutting device according to the present invention.

FIG. 8 is a schematic diagram of a winding device according to the present invention.

In the figure: the extrusion device 10, the main runner insert 11, the split runner insert 13, the main runner fixing block 12, the split runner fixing block 14, the extrusion insert 15, the cooling device 20, the first guide sheave 21, the water inlet 22, the fan interface 23, the second guide sheave 24, the first sheave frame 25, the water tank bracket 26, the second sheave frame 27, the wire storage device 30, the wire storage frame 31, the first wire storage wheel 321, the second wire storage wheel 322, the third wire storage wheel 323, the fourth wire storage wheel 324, the fixing ring 33, the integrated machine device 40, the integrated machine bracket 45, the winding device 41, the winding disc 411, the winding rod 412, the clamping block 413, the traction device 42, the pressure regulating valve 421, the first motor 422, the driving traction roller 4231, the driven rubber roller 4232, the gear 424, the traction roller fixing frame 425, the cutting device 43, the second motor 431, the crank slider mechanism 432, the cutting blade 433, and the winding guide sheave 44.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings, which illustrate but do not limit the invention.

The design of the invention mainly starts from the increase of the number of extruded wire strands, and designs and manufactures a production line capable of extruding two strands of wood-plastic wires at one time. As shown in fig. 1, the wood-plastic wire production equipment of the present invention includes an extrusion device 10, a cooling device 20, a wire storage device 30 and an integrated machine device 40.

The extrusion device 10 is a single-screw extruder, and an extrusion port of the single-screw extruder is provided with one extrusion head and two extrusion heads. As shown in fig. 2, the first-outlet two-extruder head comprises a main runner insert 11, a split runner insert 13, a main runner fixed block 12, a split runner fixed block 14 and an extrusion insert 15; the split runner insert 13 is provided with two split runners, two extrusion inserts 15 are correspondingly arranged, the main runner outlet of the main runner insert 11 is connected with the two split runner inlets of the split runner insert 13, and the two split runner outlets of the split runner insert 13 are respectively connected with the extrusion runners of the two extrusion inserts 15. The main runner fixing block 12 is arranged on the periphery of the main runner insert 11 and the shunt runner insert 13 and fixedly connects the main runner insert 11 with the shunt runner insert 13; the runner fixing block 14 is provided with a mounting groove for embedding the runner insert 13 and a mounting groove for embedding the extrusion insert 15. In this embodiment, two fixed block runners are disposed between the runner insert 13 and the extrusion insert 15 on the runner fixed block 14, and the two fixed block runners respectively connect the two runners of the runner insert 13 with the extrusion runners of the two extrusion inserts 15, which on one hand can shorten the length of the extrusion insert 15 and reduce the manufacturing difficulty thereof; on the other hand, it is possible to prevent the problem of adhesion between the sprue insert 13 and the extrusion insert 15, which may be caused by direct contact therebetween, and if the sprue insert 13 and the extrusion insert 15 are adhered, the extrusion insert 15 is difficult to be removed, replaced, or repaired. In this embodiment, two flow dividing channels on the flow dividing channel insert 13 are symmetrically distributed on two sides of a main flow channel axis on the main flow channel insert 11, the flow dividing channel axis and the main flow channel axis form a certain included angle, the extrusion flow channel axis in the extrusion insert 15 is parallel to the main flow channel axis, the distance between the two extrusion flow channels is more than 26mm, and the distance is large enough, so that adhesion interference between two strands of wires can be prevented. A heating coil is sleeved outside the main runner fixing block 12 and the split runner fixing block 14, one heating coil is arranged, and the two runners are heated at the same time, so that the cost is greatly reduced.

The molten wood plastic is extruded to the main runner insert 11 by a single screw extruder, is split to the two extrusion inserts 15 by the split runner insert 13, and enters the cooling device 20 after being extruded.

As shown in fig. 3, the cooling water tank in the cooling device 20 is divided into two sections in consideration of the uniformity of cooling of the two strands after extrusion. The first section cooling water tank adopts warm water with the temperature of 40-50 ℃ to primarily cool the wire rod, the second section cooling water tank adopts cold water with the temperature of 20-30 ℃ to secondarily cool, and the bottoms of the first section cooling water tank and the second section cooling water tank are provided with a water inlet 22 and a water outlet. In order to ensure that interference does not occur in the cooling process of two strands of wires, a plurality of groups of first guide sheaves 21 are arranged in the first section cooling water tank and the second section cooling water tank for guiding, and the first guide sheaves 21 are arranged on a water tank bracket 26 through a first groove wheel frame 25. The tail end of the second section cooling water tank is provided with a fan interface 23, and an air blowing port on the fan interface 23 is connected with an air outlet of the fan and used for drying the water-cooled wire so as to facilitate later collection. A second guide sheave 24 is further provided after the fan interface 23, the second guide sheave 24 is mounted on the fan interface 23 through a second sheave frame 27 to guide the wire so that the wire is coaxial with the inner axis of the distance from the extrusion insert 15 to the second guide sheave 24, i.e., the wire is not bent at all, so as to avoid wire deformation. The two wires are guided by the guide sheaves 21 to enter a first-stage cooling water tank for cooling, and after warm water cooling is completed, enter a second-stage cooling water tank for cooling, and finally are air-dried and enter the wire storage device 30 under the guide action of the second guide sheaves 24.

As shown in fig. 1 and 4, the wire storage device 30 includes a wire storage frame 31, two sides of the wire storage frame 31 are provided with wire storage wheel sets corresponding to two wires respectively, the wire storage wheel sets include a first wire storage wheel 321 and a second wire storage wheel 322 which are oppositely arranged in front and back, and a third wire storage wheel 323 and a fourth wire storage wheel 324 which are oppositely arranged in up and down directions. The first wire storage wheel 321 corresponds to the wire position coming out of the second section cooling water tank, so that the wire is not bent at all, and the second wire storage wheel 322 corresponds to the wire position coming out of the fourth wire storage wheel 324, so that the wire is not bent in the lateral direction, and deformation of the wire is avoided. In order to ensure that dislocation does not occur in the wire storage process, the end part at the outer side of the wire storage wheel is positioned by a fixing ring 33, and the left and right sides of the wire storage wheel are respectively fastened by a positioning ring 33 through threads. The two strands of wires are subjected to air cooling drying wire storage through a wire storage wheel of the wire storage device. The third wire storage wheel 323 and the fourth wire storage wheel 324 have the diameter of 80-120mm, the length of 200-300mm and the preferred size of phi 100 multiplied by 250mm, compared with the prior wire storage wheel, the wire storage wheel can be arranged on the wire storage frame 31, the wire storage frame 31 is directly arranged on the ground, the wire storage wheel frame is not required to be arranged at a very high position like the prior art, the wire storage device 30 is more convenient to install, the size of the wire storage device is smaller, and the occupied space is saved while the requirement of ten meters of wire storage is met. The wire coming out of the fourth wire storage wheel 324 enters the all-in-one device.

As shown in fig. 5, the integrated machine device comprises an integrated machine bracket 45, auxiliary units and winding guide sheaves 44 corresponding to two strands of wires are mounted on two sides of the integrated machine bracket 45, the auxiliary units comprise a traction device 42, a cutting device 43 and a winding device 41, the positions of the cutting device 43 and the traction device 43 are overhead to the front end of the winding device 41, the wires enter the winding device 41 to be wound after being sequentially subjected to the traction action of the traction device 42 through the cutting device 43 and the winding guide sheaves 44, the wires are cut after being counted through an infrared counting device on the cutting device 43, and the winding device 41 is wound into a disc.

As shown in fig. 6, the traction device 42 includes a traction roller fixing frame 425, a first motor 422, two pressure regulating valves 421, a driving traction roller 4231, a driven rubber roller 4232 and two gears 424. Both ends of the driving traction roller 4231 and the driven traction roller 4232 are rotatably mounted on the traction roller fixing frame 425, respectively, and the driving traction roller 4231 and the driven traction roller 4232 are oppositely arranged. The output end of the first motor 422 is coaxially connected with one end of the driving traction roller 4231 through a coupling, two gears 424 are coaxially sleeved on one end of the driving traction roller 4231 and one end of the driven traction roller 4232 respectively, and the two gears 424 are meshed. The pressure regulating valve 421 is mounted on the traction roller mount 425 for regulating the traction force between the driving traction roller 4231 and the driven traction roller 4232. Under the driving of the first motor 422, the driving traction roller 4231 rotates, the driven traction roller 4232 rotates under the meshing action of the gear 424, the driving traction roller 4231 and the driven traction roller 4232 move in opposite directions to drive the wood-plastic wires to move, and the traction extrusion force of the wood-plastic products can control the traction force between the two traction rollers through the pressure regulating valve 1 because the melt strength of the wood-plastic products is much worse than that of the plastic products.

For the design of a traction machine, the most common traction mechanism in the market at present is a crawler-type transmission mechanism, the traction speed is controlled by two motors, and the motors drive belt wheels to rotate. The upper crawler belt and the lower crawler belt are respectively controlled by two motors, which may cause inconsistent rotation rates of the upper and lower belt wheels and uneven traction force in the traction process. And as the melt strength of the wood plastic is much poorer than that of the plastic, the traction extrusion force of the wood plastic product is controlled not to be too large, and the product is easily broken by too large traction force. Meanwhile, the wood-plastic wires with the thickness of 1.75mm on the production line are more easily damaged in the traction process. Therefore, with respect to the performance of the wood-plastic wires, the invention adopts rubber rolls for traction, namely, the driving traction roll 4231 and the driven traction roll 4232 adopt rubber rolls.

The rubber roller is polyurethane rubber roller. The polyurethane rubber roller has very high mechanical strength and wear resistance, and also has very excellent ageing resistance and oil resistance, is commonly used for machines such as papermaking, chemical fiber, wood processing, plastic processing and the like, and wood-plastic wires are used as a mixed material of wood and plastic, and have high requirements on traction force in the traction process, so the polyurethane rubber roller is most suitable.

The first motor 422 controls the transmission of the gear 424 through a coupler, the gear 424 drives the driven traction roller 4232, the two traction rollers are meshed with each other to draw wires, and the first motor 422 adopts a speed regulating motor to enable the magnitude of the traction rate to be adjustable. At the same time, the meshing transmission of the gears 424 can ensure the synchronization of the transmission rates of the two traction rollers.

In consideration of the adjustment of the traction force applied to the wire during the traction process, a pressure regulating valve 421 is provided, and when the traction force is too large, the pressure regulating valve 421 can be twisted to push down the driven traction roller 4232 to increase the pressure between the two traction rollers, so as to realize the control of the traction force of the wood-plastic wire.

As shown in fig. 7, the cutting device 43 includes a second motor 431, a crank slider mechanism 432, a cutting blade 433 and an infrared counter, wherein an output shaft of the second motor 431 drives a crank of the crank slider mechanism 432 to rotate, and the crank slider drives the cutting blade 433 to perform cutting and reciprocating motions. The crank slider mechanism 432 is driven by the rotation of the second motor 431 to reciprocate, and controls the cutting blade 433 to move up and down, so that the cutting of the wire is finally realized. The second motor 431 is controlled to operate by counting the number of the infrared counters, the second motor 431 controls the cutting device 43 to cut, and when a certain length is reached, the wire is automatically cut off. The second motor 431 employs a stepping motor.

The cutting device mainly cuts the wire in fixed length before winding when winding is completed. For the design of the cutting device, the counting device and the cutting device are arranged separately in the market, and the counting and cutting integrated machine is adopted in the scheme.

The main body of the cutting device adopts ZAlSi12, and the aluminum body is lighter. The cutting device is made of high-speed steel, the heat treatment process of the high-speed steel is complex, a series of processes such as quenching and tempering are needed, the cutting device has high hardness, high wear resistance and high heat resistance, and the requirements of the cutting device on the cutting blade are met.

As shown in fig. 8, the winding device 41 comprises a winding disc 411, a winding rod 412 and a clamping block 413, wherein the winding disc 411 is formed by crisscross fixing two support rods; two winding rods 412 are arranged on each supporting rod, the two winding rods 412 are respectively positioned at two sides of a cross intersection, the winding rods 412 are perpendicular to a plane where the winding disc 411 is positioned, and the four winding rods 412 are positioned at the same side of the winding disc 411. The winding rod 412 can be radially changed in position on the supporting rod of the winding disc 411, so as to adjust the diameter of the winding. The winding rod 412 is provided with a clamping block 413 for limiting the thickness of winding; the clamping block 413 can be axially positioned on the winding bar 412 to vary the thickness of the winding.

The winding device 41 is the last step of the whole production line, and the wires are collected into a coil through the winding device 41 after being cooled and shaped. For the design of the winding device 41, the parameters of the winding disc seen in the market are mostly not fixed, the winding disc arranged on a common production line of each manufacturer is customized and improved according to actual conditions, and for the problems, the winding device 41 with adjustable winding size and adjustable winding rod 412 position according to the actual required diameter is arranged.

And the winding device 41 in the market at present can only wind in one plane, and the winding is uneven. In order to achieve uniform curling, the invention is provided with a winding guide sheave 44 at the front end of the winding device 41, the shaft of the winding guide sheave 44 is connected with the output shaft of the third motor, and the axis of the winding guide sheave 44 is parallel to the axis of the winding disc 411. The rolling guide grooved pulley 44 reciprocates along the axial direction under the drive of the third motor, so as to achieve the purpose of uniform rolling. The third motor is a through screw stepping motor, the reciprocating motion range can be designed according to the thickness of the coiled coil, and the reciprocating motion range is realized by controlling the rotation of the motor.

The cutting device 43, the traction device 42 and the winding device 41 are integrated, and the positions of the cutting device and the traction device are overhead to the front end of the winding device according to the placement sequence, so that the occupied space is reduced, and meanwhile, the problem of complex track of the wire traction process is also solved.

According to the working requirements, the working conditions of the invention can be divided into: extruding, cooling, storing and rolling. The four working conditions are as follows:

1. extrusion conditions

After the single screw extruder is mixed, the molten material flows through a first extruding machine head and a second extruding machine head to extrude two strands of wires, and the wires enter a cooling device under the guidance of a guide grooved wheel.

2. Cooling condition of

The wire rod carries out first section cooling in the warm water of first section cooling water tank, carries out secondary cooling through the cold water in second section cooling water tank after the cooling, weathers through the mouth of blowing at last, gets into the wire storage frame 31 and stores up the line. The warm water is preferably 45 ℃ water, and the cold water is preferably 25 ℃.

3. Wire storage working condition

The main function of the wire storage rack 31 is to further air cool, store ten meters of wires at the same time, and enter the integrated machine device 40 with traction winding and cutting functions to wind after wire storage.

4. Working condition of rolling

After the cooling wire storage is completed, the left and right wires are respectively subjected to infrared counting cutting by a cutting machine on the left and right of the integrated machine device 40, and finally the two wires are synchronously wound into a disc.

According to the invention, the extrusion port of the single screw extruder is provided with the two extrusion heads, the molten wood plastic flow at the die head port of the split sleeve passes through the main runner of the extrusion head and is connected to the split runner, so that the material flow is respectively led to the two extrusion inserts 5 of the extrusion head, and is extruded from the extrusion inserts 5 to form two strands of wood plastic wires, and the two strands of wood plastic wires are synchronously cooled, and finally are synchronously rolled by traction cutting of an integral machine, thereby realizing the purpose of extruding the two strands of wood plastic wires at one time and improving the production efficiency. In addition, the invention integrates the cutting device, the traction device and the wire storage device, thereby realizing the saving and utilization of space.

The invention has small occupied space, and each auxiliary machine is closely connected in the production process, so that the production process can be efficiently completed, and the production efficiency is effectively improved.

The foregoing detailed description is directed to embodiments of the invention which are not intended to limit the scope of the invention, but rather to cover all modifications and variations within the scope of the invention.

Claims (8)

1. The wood-plastic wire production equipment is characterized by comprising an extrusion device (10), a cooling device (20), a wire storage device (30) and two groups of auxiliary units, wherein each auxiliary unit comprises a traction device (42), a cutting device (43) and a winding device (41);

the extrusion device (10) comprises an extruder, and an extrusion port of the extruder is provided with two extrusion heads; the one-out-two extruder head comprises a main runner insert (11), a sub-runner insert (13) and two extrusion inserts (15); the main runner outlet of the main runner insert (11) is connected with two split runner inlets of the split runner insert (13), and the two split runner outlets of the split runner insert (13) are respectively connected with extrusion runners of the two extrusion inserts (15); a heating coil is sleeved outside the two extrusion heads;

the cooling device (20) comprises a cooling water tank for water cooling the extruded wire; a first guide grooved wheel (21) is arranged in the cooling water tank and is used for guiding the extruded wire rods; the tail end of the cooling water tank is provided with a fan interface (23), and an air blowing port on the fan interface (23) is connected with an air outlet of the fan and is used for performing air cooling drying on the water-cooled wire rod;

the wire storage device (30) comprises a wire storage frame (31), and wire storage wheel sets respectively corresponding to the two extruded wires are arranged on two sides of the wire storage frame (31);

the two groups of auxiliary units are respectively corresponding to two extruded wires, and after the wood-plastic feed liquid is extruded from the extrusion device, the wires are coiled into a disc through a cooling device (20), a wire storage device (30), a traction device (42), a cutting device (43) and a coiling device (41) in sequence;

the one-out-two extruder head also comprises a main runner fixed block (12) and a split runner fixed block (14); the main runner fixing block (12) is arranged on the peripheries of the main runner insert (11) and the sub-runner insert (13) and is used for fixedly connecting the main runner insert (11) with the sub-runner insert (13); the sprue fixing block (14) is provided with a mounting groove for embedding the sprue insert (13) and a mounting groove for embedding the extrusion insert (15);

the cooling water tank comprises a first section of cooling water tank and a second section of cooling water tank which are sequentially arranged, the first section of cooling water tank adopts warm water to perform primary cooling on the wire rod, and the second section of cooling water tank adopts cold water to perform secondary cooling on the wire rod.

2. The wood-plastic wire production device according to claim 1, wherein two fixed block runners are arranged between the runner insert (13) and the extrusion insert (15) on the runner fixed block (14), and the two runners of the runner insert (13) are respectively communicated with the extrusion runners of the two extrusion inserts (15) through the two fixed block runners.

3. The wood-plastic wire production device according to claim 1, wherein the wire storage wheel group comprises a first wire storage wheel (321) and a second wire storage wheel (322) which are arranged in a front-back opposite manner, and a third wire storage wheel (323) and a fourth wire storage wheel (324) which are arranged in a top-bottom opposite manner.

4. A wood-plastic wire production device according to claim 3, characterized in that the first wire storage wheel (321) corresponds to the wire position coming out of the second stage cooling water tank, and the second wire storage wheel (322) corresponds to the wire position coming out of the fourth wire storage wheel (324).

5. A wood-plastic wire production device according to claim 3, characterized in that the ends of the first (321), second (322), third (323) and fourth (324) wire storage wheels are all positioned with a fixing ring (33).

6. A wood-plastic wire production device according to claim 3, characterized in that the third wire storage wheel (323) and the fourth wire storage wheel (324) have a diameter of 80-120mm and a length of 200-300mm.

7. The wood-plastic wire production equipment according to claim 1, further comprising an integrated machine support (45), wherein two sets of auxiliary units are respectively installed on two sides of the integrated machine support (45), and the cutting device (43) and the traction device (42) are overhead to the front end of the winding device (41).

8. A method for producing wood-plastic wires, characterized in that the production equipment is based on claim 1, and the cooling water tank comprises a first section of cooling water tank and a second section of cooling water tank which are sequentially arranged from front to back; the method comprises the following steps:

step 1, extrusion working conditions: after the mixing of the extruder is finished, extruding two strands of wires after the molten materials flow through a first extruding machine head and a second extruding machine head, and leading the two strands of wires to enter a cooling device under the guidance of a guide grooved wheel;

step 2, cooling working conditions: the wire is subjected to first-stage cooling in warm water with the temperature of 40-50 ℃ in a first-stage cooling water tank, cooled and subjected to secondary cooling in cold water with the temperature of 20-30 ℃ in a second-stage cooling water tank, and finally dried through a blowing opening, and enters a wire storage device for wire storage;

step 3, storing the wire working condition: the wire storage device stores wires, and the wires enter an auxiliary unit with a traction winding cutting function for winding after being stored;

step 4, winding working conditions: after the cooling wire storage is completed, the left and right wires are respectively subjected to infrared counting cutting by a left and right cutting machine, and finally the two wires are synchronously wound into a disc.