Three-machine co-extrusion type screw extrusion device

Abstract

The utility model provides a three-machine co-extrusion type screw extrusion device. The three-machine co-extrusion type screw extrusion device comprises a mounting seat, the three storage barrels are arranged at the top of the mounting base at equal intervals, the bottoms of the storage barrels are fixedly connected with auger conveying pipes, one sides of the auger conveying pipes are fixedly connected with hydraulic equipment, and one sides of the hydraulic equipment are fixedly connected with a combination device through pipelines. According to the three-machine co-extrusion type screw extrusion device provided by the utility model, the mounting device and the cleaning device are mounted on the upper side and the lower side of the front side of co-extrusion equipment, the upper-layer mounting plate and the lower-layer mounting plate shield an extruded thermoplastic material, and airflow blown out by the fan is sprayed to the thermoplastic forming material through the spray head, so that the surface of the thermoplastic material is kept clean, and meanwhile, the extrusion efficiency is improved. And the thermoplastic forming material is rapidly cooled and shaped, so that the surface of the thermoplastic forming material is not easily contaminated with dust and impurities, and the cleanliness and formability of the thermoplastic material extruded by the device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to three machine co -extrusion field especially, a kind of three machine co -extrusion type screw extrusion device. BACKGROUND

[0002] Three machine co -extrusion type screw extrusion device is the key equipment in plastic processing field, can efficiently produce multilayer structure plastic product, it is mainly composed of three independent screw extruders and a set of co -extrusion die, each screw extruder has screw, cylinder, transmission system and hopper, screw is responsible for conveying, compression and plasticizing material, from feed section to metering section, realize the gradual processing of material by different screw groove depth, cylinder provides workspace, externally provided with heating and cooling device, accurately control temperature, transmission system is composed of motor, speed reducer etc., for the energy supply of screw rotation, hopper is used to add material.

[0003] Co -extrusion die converges the melt extruded by three extruders, distributes according to specific level and thickness, shapes multilayer plastic product, this kind of device is widely applied in packaging, building materials etc., can produce multilayer structure product with different properties, such as packaging material with good barrier property and mechanical strength, or building board with excellent thermal insulation and waterproof performance, greatly improves product performance and production efficiency.

[0004] But co -extrusion die is in exposed state after extruding plastic product and traction device transportation, when plastic product is extruded from extrusion head, it is still thermoplastic state, relatively soft and strong adhesion, under the condition of complete cooling, foreign dust and other impurities are easy to stick on the surface of plastic product, there is the case that too many impurities on the surface of extruded plastic product because of dust.

[0005] Therefore, it is necessary to provide a three machine co -extrusion type screw extrusion device to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model provides a three machine co -extrusion type screw extrusion device, solve the problem that co -extrusion die is in exposed state after extruding plastic product and traction device transportation, when plastic product is extruded from extrusion head, it is still thermoplastic state, relatively soft and strong adhesion, under the condition of complete cooling, foreign dust and other impurities are easy to stick on the surface of plastic product, there is the case that too many impurities on the surface of extruded plastic product because of dust.

[0007] To solve the above technical problems, the utility model provides a three machine co -extrusion type screw extrusion device, including: mounting seat;

[0008] Three storage barrels are equidistantly arranged on the top of the mounting base, the bottom of the storage barrel is fixedly connected with an auger conveying pipe, one side of the auger conveying pipe is fixedly connected with a hydraulic device, one side of the hydraulic device is fixedly connected with a combination device through a pipeline, one side of the combination device is fixedly connected with a co-extrusion device through a pipeline;

[0009] The mounting device is fixedly installed on the surface of the co-extrusion device, and the mounting device comprises mounting plates and connecting plates.

[0010] The traction devices are arranged on the upper and lower sides of the mounting device.

[0011] Preferably, the two mounting plates are fixedly installed on the upper and lower sides of the surface of the co-extrusion device, and the two connecting plates are fixedly installed on the two sides of the outer surfaces of the two mounting plates.

[0012] Preferably, the fan is fixedly installed on the surface of the mounting plate, the connecting pipe is fixedly installed on one side of the outer surface of the fan, and the nozzle is fixedly connected to one end of the connecting pipe.

[0013] Preferably, the two connecting blocks are arranged on the upper and lower sides of the surface of the connecting plate, and the traction rollers are rotatably installed on the middle of the surface of the connecting block.

[0014] Preferably, the two mounting plates are fixedly installed on the upper and lower sides of the surface of the co-extrusion device, and the two connecting plates are fixedly installed on the two sides of the outer surfaces of the two mounting plates.

[0015] Preferably, the moving device comprises pulling blocks, connecting rods and limiting holes, the two connecting rods are fixedly installed on the two sides of the top of the connecting block, the pulling block is fixedly installed on the top of the connecting rod, and the multiple limiting holes are sequentially and equidistantly arranged on the surface of the connecting rod from top to bottom.

[0016] Preferably, the limiting device comprises a fixed block, a threaded hole, a threaded rod and an adjusting block, the fixed block is fixedly installed on the surface of the mounting plate, the threaded hole is arranged in the middle of one side of the fixed block, the threaded rod is threadedly engaged in the interior of the threaded hole, and the adjusting block is fixedly installed on one end of the threaded rod.

[0017] Compared with the related art, the three-machine co-extrusion type screw extrusion device has the following beneficial effects:

[0018] This utility model provides a three-machine co-extrusion screw extrusion device. By installing mounting devices and cleaning devices on the upper and lower sides of the front of the co-extrusion equipment, the upper and lower mounting plates shield the extruded thermoplastic material, and the airflow blown by the fan is sprayed onto the thermoplastic material through the nozzle. While keeping the surface of the thermoplastic material clean, it also rapidly cools and shapes the thermoplastic material, making it less prone to dust and impurities adhering to the surface of the thermoplastic material, thus improving the cleanliness and formability of the extruded thermoplastic material of this device. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a first embodiment of a three-machine co-extrusion screw extrusion device provided by this utility model;

[0020] Figure 2 for Figure 1 The enlarged schematic diagram at point A is shown below;

[0021] Figure 3 for Figure 1 The enlarged schematic diagram at point B is shown below;

[0022] Figure 4 A schematic diagram of the structure of a second embodiment of a three-machine co-extrusion screw extrusion device provided by this utility model;

[0023] Figure 5 for Figure 4 The enlarged schematic diagram at point C is shown below;

[0024] Figure 6 for Figure 5 The diagram shows the structure of the limiting device.

[0025] The following are the labels in the diagram: 1. Mounting base, 2. Storage cylinder, 3. Screw conveyor pipe, 4. Hydraulic equipment, 5. Combination device, 6. Co-extrusion equipment, 7. Mounting device, 71. Mounting plate, 72. Connecting plate, 8. Cleaning device, 81. Fan, 82. Connecting pipe, 83. Nozzle, 9. Traction device, 91. Connecting block, 92. Traction roller, 10. Limiting device, 101. Fixing block, 102. Threaded hole, 103. Threaded rod, 104. Adjusting block, 11. Moving device, 111. Pulling block, 112. Connecting rod, 113. Limiting hole. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] First Embodiment

[0028] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1The utility model provides a kind of three machine co-extrusion formula screw extrusion device first embodiment's structure schematic view provided by the utility model; Figure 2 For Figure 1 The enlarged schematic view of A shown in the figure; Figure 3 For Figure 1 The enlarged schematic view of B shown in the figure.A kind of three machine co-extrusion formula screw extrusion device, comprising: mounting seat 1;

[0029] Storage cylinder 2, three the storage cylinder 2 equidistantly arranged at the top of mounting seat 1, the bottom of the storage cylinder 2 is fixedly connected with auger conveying pipe 3, one side of the auger conveying pipe 3 is fixedly connected with hydraulic equipment 4, one side of the hydraulic equipment 4 is fixedly connected with combination device 5 through pipeline, one side of the combination device 5 is fixedly connected with co-extrusion equipment 6 through pipeline;

[0030] Mounting device 7, the mounting device 7 is fixedly installed on the surface of the co-extrusion equipment 6, the mounting device 7 includes mounting plate 71 and connecting plate 72, both sides of the surface of the mounting device 7 are provided with cleaning device 8, and the cleaning device 8 includes fan 81, connecting pipe 82 and spray head 83;

[0031] Traction device 9, two groups of the traction device 9 are arranged on the upper and lower sides inside the mounting device 7, and the traction device 9 includes connecting block 91 and traction roller 92.

[0032] Two mounting plates 71 are fixedly installed on the upper and lower sides of the surface of the co-extrusion equipment 6 respectively, and two connecting plates 72 are fixedly installed on the two sides of the outer surfaces of two mounting plates 71 respectively.

[0033] The fan 81 is fixedly installed on the surface of the mounting plate 71, the connecting pipe 82 is fixedly installed on one side of the outer surface of the fan 81, and the spray head 83 is fixedly connected to one end of the connecting pipe 82.

[0034] Two groups of the connecting block 91 are arranged on the upper and lower sides of the surface of the connecting plate 72 respectively, and the traction roller 92 is rotatably installed on the middle of the surface of the connecting block 91.

[0035] The traction roller 82 at the bottom is rotated by servo motor control, and the hot plastic forming material is transported and moved.

[0036] The working principle of the three machine co-extrusion formula screw extrusion device provided by the utility model is as follows:

[0037] When working, first, the fan 81 is started by external power control airflow to be sprayed from connecting pipe 82 and spray head 83, the airflow sprayed by spray head 83 is cooled and formed to the hot plastic material extruded by co-extrusion equipment 6, simultaneously, dust outside is blown open, and the surface of hot plastic material is kept clean.

[0038] The thermoplastic material is pulled and transported by the upper and lower traction rollers 92.

[0039] Compared with the related art, the three-machine co-extrusion type screw extrusion device has the following beneficial effects:

[0040] The three-machine co-extrusion type screw extrusion device of the utility model provides a kind of, by installing installation device 7 and cleaning device 8 in the upper and lower sides of the front side of co-extrusion equipment 6, and the upper and lower two layers of mounting plate 71 block extruded thermoplastic material, and the airflow of fan 81 is sprayed to thermoplastic forming material by spray head 83, keep the cleanness of the surface of thermoplastic material, while, thermoplastic forming material is rapidly cooled and shaped, so that thermoplastic forming material surface is not easy to contaminate dust impurities, improve the cleanness and formability of the extruded thermoplastic material of the device.

[0041] Second embodiment

[0042] Please refer to Figure 4 , Figure 5 And Figure 6 , based on the first embodiment of the application, a kind of three-machine co-extrusion type screw extrusion device is provided, and the second embodiment of the application proposes another three-machine co-extrusion type screw extrusion device. Second embodiment is only the preferred mode of first embodiment, and the implementation of second embodiment will not affect the separate implementation of first embodiment.

[0043] Specifically, the difference between the three-machine co-extrusion type screw extrusion device provided by the second embodiment of the application is that one of the three-machine co-extrusion type screw extrusion device, one of the mounting plate 71 surface is fixedly installed with limiting device 10 on both sides, and the top of the connecting block 91 is fixedly connected with moving device 11.

[0044] The moving device 11 includes a pull block 111, a connecting rod 112 and a limiting hole 113, two connecting rods 112 are fixedly installed on the top of the connecting block 91 on both sides, the pull block 111 is fixedly installed on the top of the connecting rod 112, and a plurality of limiting holes 113 are sequentially and equidistantly formed on the surface of the connecting rod 112 from top to bottom.

[0045] The limiting device 10 includes a fixed block 101, a threaded hole 102, a threaded rod 103 and an adjusting block 104, the fixed block 101 is fixedly installed on the surface of the mounting plate 71, the threaded hole 102 is formed in the middle of one side of the fixed block 101, the threaded rod 103 is threadedly engaged in the inside of the threaded hole 102, and the adjusting block 104 is fixedly installed on one end of the threaded rod 103.

[0046] The working principle of the three-machine co-extrusion type screw extrusion device provided by the utility model is as follows:

[0047] In work, first hold pull block 111 to pull up, pull block 111 drive connecting rod 112 and the traction device 9 of top move up, adjust the interval between the traction roller 92 of top traction device 9 and the traction roller 92 of bottom traction device 9.

[0048] Then rotate the adjusting block 104 drive threaded rod 103 rotates, threaded rod 103 rotates threaded engagement threaded hole 102 embeds into the inside of aligned limit hole 113, to the height of top traction device 9 is limited.

[0049] Compared with the related art, the three-machine co-extrusion type screw extrusion device has the following beneficial effects:

[0050] The three-machine co-extrusion type screw extrusion device has the following beneficial effects:

[0051] The three-machine co-extrusion type screw extrusion device has the following beneficial effects: The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A three-machine co-extrusion screw extrusion device, characterized in that, include: Mounting base; The storage cylinders are arranged equidistantly on the top of the mounting base. The bottom of each storage cylinder is fixedly connected to an auger conveying pipe. A hydraulic device is fixedly connected to one side of the auger conveying pipe. A combined device is fixedly connected to one side of the hydraulic device through a pipe. A co-extrusion device is fixedly connected to one side of the combined device through a pipe. The mounting device is fixedly installed on the surface of the co-extrusion equipment. The mounting device includes a mounting plate and a connecting plate. Cleaning devices are provided on both sides of the surface of the mounting device. The cleaning devices include a fan, a connecting pipe, and a nozzle. The traction device comprises two sets of traction devices respectively located on the upper and lower sides inside the mounting device, and each traction device includes a connecting block and a traction roller.

2. The three-machine co-extrusion screw extrusion device according to claim 1, characterized in that, The two mounting plates are fixedly installed on the upper and lower sides of the surface of the co-extrusion equipment, respectively, and the two connecting plates are fixedly installed on the outer sides of the two mounting plates.

3. The three-machine co-extrusion screw extrusion device according to claim 1, characterized in that, The fan is fixedly installed on the surface of the mounting plate, the connecting pipe is fixedly installed on one side of the outer surface of the fan, and the nozzle is fixedly connected to one end of the connecting pipe.

4. The three-machine co-extrusion screw extrusion device according to claim 1, characterized in that, The two sets of connecting blocks are respectively disposed on the upper and lower sides of the surface of the connecting plate, and the traction roller is rotatably mounted in the middle of the surface of the connecting block.

5. The three-machine co-extrusion screw extrusion device according to claim 1, characterized in that, Limiting devices are fixedly installed on both sides of the surface of one of the mounting plates, and a moving device is fixedly connected to the top of the top connecting block.

6. The three-machine co-extrusion screw extrusion device according to claim 5, characterized in that, The moving device includes a pull block, a connecting rod, and limiting holes. The two connecting rods are respectively fixedly installed on both sides of the top of the connecting block, and the pull block is fixedly installed on the top of the connecting rod. The multiple limiting holes are opened at equal intervals from top to bottom on the surface of the connecting rod.

7. A three-machine co-extrusion screw extrusion device according to claim 5, characterized in that, The limiting device includes a fixed block, a threaded hole, a threaded rod, and an adjusting block. The fixed block is fixedly installed on the surface of the mounting plate. The threaded hole is opened in the middle of one side of the fixed block. The threaded rod is threaded into the inside of the threaded hole. The adjusting block is fixedly installed at one end of the threaded rod.

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