A high-flexibility TPEE raw material mixing and pouring device

Abstract

The application discloses a kind of high flexibility TPEE preparation raw material mixing perfusion device, it is related to polymer material preparation technical field, including conveying cylinder, mixing component and manifold.The conveying cylinder one end is fixedly installed with speed reducer, inside is provided with screw rod, and material is transported to mixing component along axial direction;Mixing component includes mixing cabin, diverter and feeder, diverter and feeder are coaxial reverse rotation, diverter is shunted to outer flow channel by outer rotating blade, and feeder is shunted to inner flow channel by inner rotating shaft, and the multiple shunting and confluence mixing of material are realized in mixing cabin;Mixing component is also simulated the fluid acceleration effect of Tesla valve by the taper structure of inner ring cylinder and shunt cone cylinder, and improves mixing uniformity and flow stability.The application realizes the efficient transport, uniform mixing and accurate perfusion of TPEE raw material, is suitable for the industrialized production of high-performance engineering materials, with the advantages of simple structure, stable operation and convenient maintenance.

Description

Technical Field

[0001] This invention relates to the field of injection molding technology, specifically to a mixing and injection device for preparing high-flexibility TPEE raw materials. Background Technology

[0002] In existing TPEE (thermoplastic elastomer polyether ester) raw material preparation processes, traditional raw material mixing and filling equipment typically employs single-screw extrusion or gravity filling methods for material conveying and mixing. Specifically, traditional equipment mainly includes a single-screw conveyor, a fixed mixing chamber, and a standard gravity filling structure. During mixing, the material is propelled into the mixing chamber by the rotation of the single screw, then mixed using simple stirring components, and finally enters the filling channel to complete the filling process. While this type of technical solution has a relatively simple structure, its conveying, mixing, and filling effects are limited when dealing with high-viscosity, high-requirement TPEE materials, easily leading to material waste, uneven mixing, and low efficiency.

[0003] Although traditional technical solutions can accomplish basic conveying and mixing, they have revealed the following shortcomings in actual production: Traditional single-screw extruders, due to a lack of precise control during the conveying process, are prone to unstable material flow, resulting in material loss and uneven distribution during filling, thus reducing production efficiency and product quality stability. The mixing chamber of traditional units typically relies on simple stirring components to mix materials, but due to the lack of effective diversion and confluence design, the mixing effect within the mixing chamber is poor, especially when strict requirements are placed on the proportions of multiple raw materials, easily leading to uneven mixing and directly affecting the performance of TPEE (Total Productive Extrusion).

[0004] Traditional technologies fail to effectively optimize material flow paths during material conveying and mixing, leading to stagnation or turbulence in the material flow and hindering rapid and efficient mixing and injection. Furthermore, the instability of the material flow can increase energy consumption during equipment operation, further impacting production efficiency.

[0005] To address the aforementioned issues, there is an urgent need for a technical solution that can efficiently mix, precisely inject, and improve delivery stability, in order to overcome the shortcomings of traditional technologies and improve the efficiency and product quality of the high-flexibility TPEE preparation process. Summary of the Invention

[0006] This invention aims to solve the technical problems of uneven material mixing, low injection accuracy, and insufficient conveying efficiency in existing or related technologies. To this end, it provides a high-flexibility TPEE preparation raw material mixing and injection device, thereby achieving high efficiency and stability in efficient mixing, precise injection, and material conveying.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A high-flexibility TPEE preparation raw material mixing and injection device includes a conveying cylinder, a mixing component, and a manifold; a geared motor is fixedly installed at one end of the conveying cylinder, and a spiral rod connected to the output end of the geared motor is rotatably installed inside the conveying cylinder; a feed end pipe is provided on the top surface of the conveying cylinder; a first drive box and a second drive box are fixedly installed at the bottom of the mixing component, and both ends of the mixing component are respectively connected to the conveying cylinder and the manifold; a diverter is rotatably installed at one end of the inner cavity of the conveying cylinder.

[0008] The mixing assembly includes a mixing chamber, a distributor, and a feeder. The distributor and the feeder are rotatably mounted inside the mixing chamber. A first toothed ring and a second toothed ring are rotatably mounted on both sides of the mixing chamber, and the surfaces of the distributor and the feeder are respectively engaged with the output ends of the first drive box and the second drive box. Several conical diversion structures are provided inside the mixing chamber to divert and merge the material within the mixing chamber.

[0009] The distributor includes an inner ring cylinder, an outer rotating blade, and a first transmission tooth. One end of the inner ring cylinder is fixedly connected to the outer rotating blade, and the first transmission tooth engages with the inner side of the first toothed ring. The feeder includes a diversion cone, an inner rotating shaft, and a second transmission tooth. One end of the inner rotating shaft passes through the inner ring cylinder and is fixedly connected to the diversion cone, while the other end engages with the second toothed ring through the second transmission tooth.

[0010] The inner ring cylinder and the inner and outer sides of the diversion cone form an inner flow channel and an outer flow channel. The material is efficiently mixed and enters the manifold through the convergence and flow movement of the inner and outer flow channels.

[0011] In a preferred embodiment, the present invention can be further configured as follows: The outer periphery of the screw rod slides against the inner side of the conveying cylinder, and the material is conveyed in the conveying cylinder by a geared motor.

[0012] The mixing chamber contains several groups of distributors, feeders, and conical diversion structures, which are evenly distributed in a circumferential direction on the outer periphery of the screw shaft axis. Several distributors and feeders are synchronously driven by a toothed ring to further improve mixing and conveying efficiency.

[0013] Both the inner ring cylinder and the diversion cone cylinder adopt a conical design. The cross-section of the inner ring cylinder is teardrop cone-shaped, and inner and outer flow channels are respectively provided on its inner and outer sides. The outer flow channel realizes material conveying through the rotation of the outer swivel blade, and the inner flow channel realizes material conveying through the rotation of the inner swivel shaft.

[0014] The inner ring cylinder is provided with a diversion ring on its inner side, and several overflow holes are opened on its surface to divert part of the material in the inner flow channel to the outer flow channel, thereby achieving material flow balance and uniform mixing between the inner and outer flow channels.

[0015] The feeder's diversion cone is a symmetrical conical ring, with its outer circumference sliding against the inner side of the inner ring. The conical spiral structure simulates the fluid motion characteristics of a Tesla valve, achieving acceleration and stabilization of the material flow during the conveying process.

[0016] The first drive box and the second drive box have the same structure, both including a motor and an active tooth fixed to the output end of the motor. The synchronous reverse rotation drive of the distributor and the feeder is realized through the meshing of the active tooth and the tooth ring.

[0017] Through the above technical solution, the present invention can effectively solve the problems of uneven material mixing, inaccurate filling and low conveying efficiency in the prior art, and greatly improve the production quality and efficiency of high-flexibility TPEE preparation, which is suitable for the industrial production needs of high-performance engineering materials.

[0018] The beneficial effects achieved by this invention are as follows: 1. In this invention, the coaxial counter-rotation design of the distributor and the feeder enables efficient conveying and precise filling of materials in the mixing chamber, avoiding the problems of material loss and uneven flow that occur in traditional filling devices.

[0019] 2. In this invention, during the material conveying process by the rotating screw, the material flow is diverted to each inner side and mixed inside the manifold. Furthermore, through the conical diversion structure of the inner ring cylinder and the diversion cone cylinder, the material is mixed between the inner ring cylinder and the diversion cone cylinder, which can achieve efficient mixing of raw materials, ensure uniform mixing, and thus significantly improve the production quality of high-flexibility TPEE.

[0020] 3. In this invention, the conical spiral design of the inner ring cylinder and the diversion cone cylinder simulates the fluid motion effect of the Tesla valve, which can accelerate the material flow during the conveying and mixing process, further improve the injection efficiency, and at the same time ensure the stability of the material flow. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 This is a schematic cross-sectional view of the conveying cylinder and mixing component according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the mixing chamber according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the installation structure of the distributor and feeder according to an embodiment of the present invention; Figure 5 This is an exploded view of the distributor and feeder according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of a distributor according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of a feeder according to an embodiment of the present invention.

[0022] Figure label: 100. Conveying cylinder; 110. Gear motor; 120. Feed end pipe; 130. First drive box; 140. Second drive box; 101. Diverter plate; 102. Screw rod; 200. Mixing component; 210. Mixing chamber; 211. Conical diverter structure; 220. Diverter; 230. Feeder; 240. First toothed ring; 250. Second toothed ring; 221. Inner ring cylinder; 222. Outer vane; 223. First transmission tooth; 231. Diverter cone; 232. Inner rotating shaft; 224. Overflow hole; 233. Second transmission tooth; 300. Manifold. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0024] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention. Example

[0025] The following is in conjunction with the appendix Figures 1-7 This invention describes a highly flexible TPEE preparation raw material mixing and injection apparatus provided by some embodiments of the present invention.

[0026] This embodiment provides a mixing and infusion device for preparing high-flexibility TPEE raw materials, such as... Figures 1 to 7 As shown, it includes a conveying cylinder 100, a mixing component 200, and a manifold 300.

[0027] A geared motor 110 is fixedly installed at one end of the conveying cylinder 100. The output end of the geared motor is connected to the spiral rod 102 inside the conveying cylinder, and the outer periphery of the spiral rod slides against the inner wall of the conveying cylinder.

[0028] The top surface of the conveying cylinder is provided with a feed end pipe 120, through which TPEE raw materials are conveyed into the conveying cylinder. Driven by the geared motor 110, the material moves axially along the screw rod 102 to the mixing component 200.

[0029] The mixing assembly includes a mixing chamber 210, a distributor 220, and a feeder 230. The mixing chamber 210 is connected to the conveying cylinder 100 and the manifold 300 at both ends. A first drive box 130 and a second drive box 140 are fixedly installed at the bottom of the mixing chamber, which respectively drive the distributor 220 and the feeder 230. The mixing chamber 210 is rotatably mounted on one side of the conveying cylinder 100 and arranged coaxially. The end of the screw rod 102 is fixedly connected to the end of the mixing chamber 210 to achieve synchronous rotation of the mixing chamber 210 and the screw rod 102.

[0030] The distributor 220 includes an inner ring cylinder 221, an outer rotary vane 222, and a first transmission gear 223. An inner flow channel and an outer flow channel are respectively provided on both sides of the inner ring cylinder 221, and the first transmission gear 223 meshes with the first toothed ring 240 to achieve rotation.

[0031] The feeder 230 includes a diverting cone 231, an inner rotating shaft 232, and a second transmission gear 233. The diverting cone 231 is a conical ring, and its outer circumference slides against the inner side of the inner ring cylinder 221. The second transmission gear 233 meshes with the second toothed ring 250 to achieve synchronous reverse rotation.

[0032] Material mixing and conveying process: The material is diverted from the conveying cylinder 100 at the diversion plate 101 and enters the mixing chamber 210. Under the rotation of the guide 220 and the feeder 230, it is conveyed and mixed through the inner and outer channels respectively.

[0033] The intersection of the inner ring cylinder 221 and the diversion cone cylinder 231 forms the diversion and convergence of materials. During this process, the materials are uniformly mixed and enter the next process stage through the confluence pipe 300. Example

[0034] To further optimize the infusion efficiency and mixing effect, this embodiment provides an improved structure compared to Embodiment 1.

[0035] Optimized design of distributor and feeder: The outer spiral blade 222 of the distributor 220 is a multi-segment spiral blade, with the spiral angle of each segment gradually increasing, thereby compressing and pushing the material step by step during the mixing process, enhancing the uniformity of the material mixing.

[0036] The inner rotating shaft 232 of the feeder 230 is designed with a variable cross-section structure. Its outer circumference matches the flow channel shape inside the inner ring cylinder 221, ensuring that there are no dead corners during material conveying and improving conveying efficiency.

[0037] Configuration of multiple hybrid components: The distributors 220 and feeders 230 in the mixing chamber 210 are configured in multiple sets, and the multiple sets of mixing components are arranged in parallel along the axis of the mixing chamber. After passing through multiple conveyors, the material enters the manifold 300 for further mixing.

[0038] The gap between the outer rotating blade 222 and the diversion cone 231 of each mixing component gradually decreases, causing the material to form a compression effect during the multi-stage mixing process, thereby improving the mixing uniformity and injection accuracy.

[0039] Optimization of splitting and merging: Multiple overflow holes 224 are added inside the diversion ring on the inner ring cylinder 221. These overflow holes divert part of the material in the inner flow channel to the outer flow channel, where it merges with the material in the outer swirl blade 222, achieving a more thorough mixing effect.

[0040] A spiral-shaped confluence zone of inner and outer flow channels is formed between the inner ring cylinder 221 and the diversion cone cylinder 231. This confluence zone generates turbulence when the inner and outer flow channels meet, further improving the mixing efficiency.

[0041] Automation control: Control modules are installed in the first drive box 130 and the second drive box 140 respectively. By adjusting the rotation speed of the distributor 220 and the feeder 230, the material conveying speed and mixing intensity can be precisely controlled to ensure the adaptability of different raw material ratios.

[0042] Beneficial effects of the embodiments Through the two embodiments described above, the present invention can significantly improve the mixing uniformity and injection accuracy of high-flexibility TPEE raw materials, achieving efficient production. Embodiment 1 focuses on the realization of basic functions and is suitable for ordinary production needs; Embodiment 2, through structural optimization and automated control, further improves the performance and applicability of the equipment, meeting the higher requirements of industrial production scenarios.

[0043] Working principle and usage process of this invention: This invention achieves efficient mixing and precise injection of highly flexible TPEE raw materials through the coordinated operation of the conveying cylinder, mixing assembly, and manifold. The main working principle of this invention is as follows: Material conveying: The screw rod 102 inside the conveying cylinder 100 rotates under the drive of the geared motor 110, pushing the TPEE raw material entering from the feed end pipe 120 along the axis of the conveying cylinder. The thrust generated by the rotation of the screw rod and the sliding contact with the inner wall of the conveying cylinder ensure smooth and unobstructed material conveying.

[0044] Diversion and convergence of the mixing components: After the raw material is diverted by the diversion plate 101 and enters the mixing chamber 210, it is diverted to the inner and outer flow channels by the coaxial counter-rotating action of the distributor 220 and the feeder 230. The outer rotating blade 222 of the distributor 220 conveys a portion of the material in the outer flow channel, while the inner rotating shaft 232 of the feeder 230 conveys the other portion of the material in the inner flow channel.

[0045] After being diverted, the material re-converges at the intersection of the inner ring cylinder 221 and the diversion cone 231 through the inner and outer flow channels, forming a cycle of multiple diversions and mixing, thereby achieving efficient mixing.

[0046] The diversion ring and overflow hole 224 on the inner ring cylinder 221 further guide part of the material in the inner flow channel to the outer flow channel, where it merges with the material in the outer flow channel to form a spiral turbulent flow effect, thereby enhancing the uniformity of mixing.

[0047] Tesla valve effect fluid acceleration: The conical structure of the inner ring cylinder 221 and the diversion cone cylinder 231 simulates the fluid motion characteristics of the Tesla valve. Through the interlacing effect of the inner and outer flow channels, the material maintains flow stability and increases speed during the conveying and mixing process, avoiding the material stagnation problem in traditional injection equipment.

[0048] Precision filling: The mixed raw materials enter the next process stage through the manifold 300 at the lower end of the mixing chamber 210. The design of the manifold ensures the uniformity and stability of the material flow, realizes precise filling, and avoids the problems of material waste or uneven filling.

[0049] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A mixing and injection device for preparing high-flexibility TPEE raw materials, characterized in that, include: The conveying cylinder (100), the mixing component (200), and the manifold (300) are provided. A geared motor (110) is fixedly installed at one end of the conveying cylinder (100), and a screw rod (102) connected to the output end of the geared motor (110) is rotatably installed inside the conveying cylinder (100). A diverter plate (101) is rotatably installed at one end of the inner cavity of the conveying cylinder (100). A feed end pipe (120) is provided on the top surface of the conveying cylinder (100). A first drive box (130) and a second drive box (140) are fixedly installed on the bottom surface of the mixing component (200). The two ends of the mixing component (200) are respectively connected to the ends of the conveying cylinder (100) and the manifold (300). The mixing assembly (200) includes a mixing chamber (210) and a distributor (220) and a feeder (230) rotatably mounted inside the mixing chamber (210). The mixing chamber (210) is rotatably mounted on one side of the conveying cylinder (100) and arranged coaxially. The end of the screw rod (102) is fixedly connected to the end of the mixing chamber (210) to realize the synchronous rotation of the mixing chamber (210) and the screw rod (102). A first toothed ring (240) and a second toothed ring (250) are rotatably mounted on both sides of the mixing chamber (210), and the surfaces of the feeder (230) and the second toothed ring (250) are respectively engaged with the output ends of the first drive box (130) and the second drive box (140). A conical distributor is provided inside the mixing chamber (210). Structure (211), the distributor (220) includes an inner ring cylinder (221), an outer rotary blade (222) and a first transmission tooth (223) fixed to one end of the inner ring cylinder (221), the first transmission tooth (223) meshing with the inner side of the first toothed ring (240); the feeder (230) includes a diversion cone (231) and an inner rotary shaft (232) fixed to the inner side of the diversion cone (231), one end of the inner rotary shaft (232) extends and penetrates the inner side of the inner ring cylinder (221), the other end of the inner rotary shaft (232) is fixedly connected to a second transmission tooth (233) meshing with the inner side of the second toothed ring (250), the inner side of the second transmission tooth (233) is a through hole for communication between the inner ring cylinder (221) and the manifold (300); The number of the conical diversion structure (211), the guide (220) and the feeder (230) is several groups, and they are evenly distributed in the circumferential direction on the outer periphery of the axis of the screw rod (102). Several first transmission teeth (223) and second transmission teeth (233) are driven synchronously by the first tooth ring (240) and the second tooth ring (250), respectively. The conical diversion structure (211) is a conical structure. The inner ring cylinder (221) is annular and has a teardrop cone-shaped cross section. The inner and outer sides of the inner ring cylinder (221) are respectively provided with an inner flow channel and an outer flow channel. The inner flow channel transports materials by rotating the inner rotating shaft (232), and the outer flow channel transports materials by rotating the outer rotating blade (222).

2. The high-flexibility TPEE preparation raw material mixing and injection device according to claim 1, characterized in that, The outer periphery of the screw rod (102) slides against the inner side of the conveying cylinder (100), and the material is conveyed inside the conveying cylinder (100) by the drive of the geared motor (110).

3. The high-flexibility TPEE preparation raw material mixing and injection device according to claim 1, characterized in that, The inner ring cylinder (221) is provided with a diversion ring on its inner side, and an overflow hole (224) located on the outer periphery of the diversion ring is provided on the surface of the inner ring cylinder (221) for diverting part of the material inside the inner ring cylinder (221) to the outer periphery of the inner ring cylinder (221).

4. The high-flexibility TPEE preparation raw material mixing and injection device according to claim 1, characterized in that, The outer periphery of the inner ring cylinder (221) is parallel to the inner wall surface of the conical diversion structure (211), and the outer spiral blade (222) is conical and spiral-shaped. One end of the outer spiral blade (222) is fixed to the outer periphery of the inner ring cylinder (221).

5. The high-flexibility TPEE preparation raw material mixing and injection device according to claim 1, characterized in that, The outer shape of the inner rotating shaft (232) is adapted to the inner shape of the inner ring cylinder (221), and the outer circumference of the inner rotating shaft (232) slides against the inner side of the inner ring cylinder (221). The diversion cone (231) is fixedly sleeved on the outer circumference of the inner rotating shaft (232). The diversion cone (231) is a symmetrical conical ring.

6. The high-flexibility TPEE preparation raw material mixing and injection device according to claim 1, characterized in that, The first drive box (130) and the second drive box (140) have the same structure and both include a motor and an active tooth fixed to the output end of the motor. The two active teeth respectively engage with the surfaces of the first tooth ring (240) and the second tooth ring (250).

7. The high-flexibility TPEE preparation raw material mixing and injection device according to claim 1, characterized in that, The outer spiral blade (222) and the inner spiral shaft (232) have opposite spiral directions, and the inner ring cylinder (221) and the diversion cone (231) rotate in opposite directions.

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