A melting apparatus for plastic processing

Abstract

The utility model discloses a kind of melting equipment for plastic processing, including heating tank, the top end of heating tank is provided with top cover with screw thread connection, stirring mechanism is arranged on the top cover, the stirring mechanism includes rotating rod and stirring paddle, rotating rod is movably connected in the inside of top cover, stirring paddle is provided with multiple groups fixed in rotating rod outer wall, heating tank outer wall is fixed with mounting bracket, motor is fixed on the top surface of mounting bracket, fixed mechanism is arranged between the output end of motor and rotating rod, the fixed mechanism includes fixed sleeve and plug-in rod, fixed sleeve is fixed in the output end of motor, plug-in rod is fixed in the top end of rotating rod and is inserted in fixed sleeve, sliding rod is slidably arranged on the outer wall of fixed sleeve, the sliding rod is provided with multiple groups and bottom end is fixed with clamping block, plug-in rod and fixed sleeve are inserted, adaptive block is inserted into adaptive groove, then sliding block is slid along inclined groove by pushing control sleeve, compression spring can automatically push clamping block to be engaged in clamping groove, whole installation process is simple and intuitive and does not need any professional tool.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and more specifically, to a melting device for plastic processing. Background Technology

[0002] In the manufacturing process of plastic products, the uniform melting and mixing of materials is a key step in ensuring the quality of the finished product. Currently, the melting equipment for plastic processing on the market has significant shortcomings in material stirring, especially when processing high-viscosity or composite plastics with multiple additives. Traditional heating devices often rely solely on simple heating functions and lack an effective stirring mechanism.

[0003] This design makes it easy for local overheating or incomplete melting to occur during the melting process. Temperature gradients and uneven material distribution are formed inside the melt, which directly affects the stability of subsequent processing and the physical properties of the product. Especially when producing high-performance engineering plastics, without the assistance of an efficient stirring system, it is difficult for the additives in the material to be evenly dispersed, resulting in unstable performance of the final product, increasing scrap rate and production costs, and failing to meet the strict requirements of modern plastics processing industry for product quality consistency.

[0004] In the daily production and maintenance of plastic processing enterprises, the cleaning of melting equipment and the replacement of parts are important factors affecting production efficiency. The existing stirring mechanisms generally adopt complex bolt fixing or welding connection methods, which makes the disassembly and assembly of key components such as stirring rotors cumbersome and time-consuming. Operators usually need to use professional tools and go through many complicated steps to complete the disassembly of parts, which not only prolongs the equipment maintenance time, but also increases the difficulty of operation. Especially after the equipment has been running for a long time, high-temperature plastic melt is easy to adhere to the connection of parts, further increasing the difficulty of disassembly. Utility Model Content

[0005] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a melting device for plastic processing to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a melting device for plastic processing, comprising a heating tank, a top cover threadedly connected to the top of the heating tank, a stirring mechanism provided on the top cover, the stirring mechanism comprising a rotating rod and a stirring paddle, the rotating rod being movably connected to the inner side of the top cover, multiple sets of stirring paddles fixed to the outer wall of the rotating rod, a mounting bracket fixed to the outer wall of the heating tank, a motor fixed to the top surface of the mounting bracket, a fixing mechanism provided between the output end of the motor and the rotating rod, the fixing mechanism comprising a fixing sleeve and a plug rod, the fixing sleeve being fixed to the output end of the motor, the plug rod being fixed to the top of the rotating rod and inserted into the fixing sleeve, a sliding rod slidably provided on the outer wall of the fixing sleeve, multiple sets of sliding rods each having a locking block fixed at the bottom, a slider fixed to the top of each set of sliding rods, a control sleeve slidably provided on the outer wall of the fixing sleeve, an inclined groove provided on the outer wall of the control sleeve, multiple sets of inclined grooves each having a sliding connection with multiple sets of sliders, and a locking groove provided on the outer wall of the plug rod.

[0007] The present invention is further configured such that a limiting block is slidably provided on the outer wall of the control sleeve, and multiple sets of the limiting block are provided, with a return spring connected between the top of each limiting block and the outer wall of the control sleeve. A limiting groove is provided on the outer wall of the fixed sleeve, and multiple sets of the limiting groove are provided, each abutting against multiple sets of limiting blocks, thereby ensuring that the control sleeve has accurate positioning and stability during movement and preventing accidental slippage.

[0008] The present invention is further configured such that a limiting sleeve is slidably provided on the outer wall of the fixed sleeve, and a push spring is provided between the limiting sleeve and the fixed sleeve, which enhances the pressure adjustment function between the limiting sleeve and the fixed sleeve and improves the stability and operational flexibility of the device.

[0009] The present invention is further configured such that a guide groove is provided on the outer wall of the fixed sleeve, and a guide block is fixedly provided on the inner side of the control sleeve. Multiple sets of the guide groove and the guide block are provided and slidably connected, which ensures smooth sliding between the control sleeve and the fixed sleeve and improves the working efficiency and accuracy of the device.

[0010] The present invention is further provided with a tension spring connecting the control sleeve and the fixed sleeve, which increases the elastic connection and ensures that the control sleeve and the fixed sleeve can maintain stable tension and position adjustment during operation.

[0011] The present invention is further provided that a limiting rod is fixedly provided on the outside of the fixed sleeve, and multiple sets of the limiting rod are provided and all of them are slidably connected to the limiting sleeve, which provides flexibility of the limiting rod and enhances the adaptability and stability of the limiting device.

[0012] The present invention is further configured such that an adapter block is fixedly provided on the outer side of the insertion rod, and an adapter groove is provided on the inner side of the fixing sleeve. Both the adapter block and the adapter groove are polygonal, which ensures the precise fit between the insertion rod and the fixing sleeve and improves the stability and working accuracy of the device.

[0013] The present invention is further configured such that a compression spring is connected between each of the multiple sets of the locking blocks and the inner wall of the fixed sleeve, providing flexible contact between the locking blocks and the fixed sleeve, effectively preventing the locking blocks from becoming loose or unstable during operation, and enhancing the durability and stability of the device.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a melting device for plastic processing, which has the following advantages: 1. This plastic processing melting equipment cleverly solves the technical problem of cumbersome and time-consuming replacement of stirring components in traditional melting equipment through an innovative fixing mechanism design. The operator only needs to insert the plug rod into the fixing sleeve, align the adapter block with the adapter slot, and then push the control sleeve to make the slider slide along the inclined groove. The compression spring will automatically push the locking block to engage in the slot. The entire installation process is simple and intuitive and requires no professional tools, which greatly improves the efficiency and convenience of replacing stirring components. It is especially suitable for production lines that need to process different types of plastic materials, effectively shortening equipment adjustment time and reducing labor costs. It perfectly meets the urgent needs of the modern plastic processing industry for equipment flexibility and rapid response capabilities.

[0015] 2. The disassembly mechanism of this device is also scientifically and efficiently designed. By simply pushing the limiting sleeve to release the contact with the limiting block, the elastic force of the return spring automatically drives the limiting block to disengage from the limiting groove. The tension spring then pulls the control sleeve to slide and drives the slider to move outward through the inclined groove, so that the locking block disengages from the locking groove and releases the locking of the insertion rod, realizing a one-click quick disassembly function. This design not only greatly reduces the time and complexity of disassembly operations, but also effectively avoids the problems of component damage and adhesion that are prone to occur in traditional fixed structures. Even after long-term handling of high-temperature plastic materials, it can still maintain stable and reliable disassembly performance, making equipment cleaning and maintenance easy and convenient, and greatly improving equipment utilization and maintenance efficiency.

[0016] 3. This plastic processing melting equipment also integrates several refined structural optimization designs. The design of the polygonal adapter block and adapter groove ensures precise coaxial transmission between the rotating rod and the motor output end. The cooperation between the guide groove and the guide block ensures the stability of the control sleeve sliding process. The design of the limit block and the limit groove ingeniously realizes the reliable locking of the control sleeve. The combination of the limit rod and the limit sleeve effectively prevents rotational deviation during disassembly and assembly. These carefully considered structural details together construct a quick-change mechanism for the stirring system that is both easy to operate and highly efficient and reliable. At the same time, the threaded top cover design facilitates the installation and disassembly of the entire device, greatly improving the overall performance and user experience of the equipment, and providing more efficient, precise and convenient advanced equipment support for plastic processing melting processes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a melting device for plastic processing according to this utility model; Figure 2 This is a cross-sectional view of the heating tank in this utility model; Figure 3 This is a schematic diagram of the disassembled structure of the fixing mechanism in this utility model; Figure 4 This is a cross-sectional view of the fixing sleeve in this utility model; Figure 5 This is a cross-sectional view of the limiting sleeve in this utility model.

[0018] In the diagram: 1. Heating tank; 2. Top cover; 3. Rotating rod; 4. Stirring paddle; 5. Mounting bracket; 6. Motor; 7. Fixing sleeve; 8. Insert rod; 9. Slide rod; 10. Locking block; 11. Sliding block; 12. Control sleeve; 13. Inclined groove; 14. Locking groove; 15. Limiting block; 16. Return spring; 17. Limiting groove; 18. Limiting sleeve; 19. Push spring; 20. Guide groove; 21. Guide block; 22. Tension spring; 23. Limiting rod; 24. Adaptor block; 25. Adaptor groove; 26. Compression spring. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0022] Please see Figures 1-5A melting device for plastic processing includes a heating tank 1. A top cover 2 is threadedly connected to the top of the heating tank 1. A stirring mechanism is provided on the top cover 2. The stirring mechanism includes a rotating rod 3 and a stirring paddle 4. The rotating rod 3 is movably connected to the inner side of the top cover 2. Multiple sets of stirring paddles 4 are fixed to the outer wall of the rotating rod 3. A mounting frame 5 is fixed to the outer wall of the heating tank 1. A motor 6 is fixed to the top surface of the mounting frame 5. A fixing mechanism is provided between the output end of the motor 6 and the rotating rod 3. The fixing mechanism includes a fixing sleeve 7 and an insert rod 8. The fixing sleeve 7 is fixed to the output end of the motor 6. The insert rod 8 is fixed to the top of the rotating rod 3 and inserted into the fixing sleeve 7. A sliding rod 9 is slidably provided on the outer wall of the fixing sleeve 7. Multiple sets of sliding rods 9 are provided, and each has a locking block 10 fixed at its bottom. A slider 11 is fixed to the top of each set of sliding rods 9. A control sleeve 12 is slidably provided on the outer wall of the fixing sleeve 7. An inclined groove 13 is provided on the outer wall of the control sleeve 12. Multiple sets of inclined grooves 13 are provided and are slidably connected to multiple sets of sliders 11 respectively. A locking groove 14 is provided on the outer wall of the insert rod 8.

[0023] The outer wall of the control sleeve 12 is provided with a limiting block 15. There are multiple sets of limiting blocks 15, and each of them is connected to a return spring 16 between its top and the outer wall of the control sleeve 12. The outer wall of the fixed sleeve 7 is provided with a limiting groove 17. There are multiple sets of limiting grooves 17, and each set abuts against multiple sets of limiting blocks 15.

[0024] A limiting sleeve 18 is slidably provided on the outer wall of the fixed sleeve 7, and a push spring 19 is provided between the limiting sleeve 18 and the fixed sleeve 7. The outer wall of the fixed sleeve 7 is provided with a guide groove 20, and the inner side of the control sleeve 12 is fixed with a guide block 21. Both the guide groove 20 and the guide block 21 are provided with multiple sets and are slidably connected.

[0025] A tension spring 22 is provided between the control sleeve 12 and the fixed sleeve 7.

[0026] A limiting rod 23 is fixedly provided on the outside of the fixed sleeve 7. Multiple sets of limiting rods 23 are provided and all are slidably connected to the limiting sleeve 18.

[0027] An adapter block 24 is fixedly provided on the outside of the plug rod 8, and an adapter groove 25 is provided on the inside of the fixing sleeve 7. Both the adapter block 24 and the adapter groove 25 are polygonal.

[0028] Compression springs 26 are provided between the multiple sets of locking blocks 10 and the inner wall of the fixing sleeve 7.

[0029] In this embodiment, during use, the raw material is injected into the heating tank 1, then the rotating rod 3 is inserted into the top cover 2, and then the top cover 2 is screwed onto the top of the heating tank 1. Next, the insert rod 8 is inserted into the fixing sleeve 7, the adapter block 24 is inserted into the adapter groove 25, the control sleeve 12 is pushed and the tension spring 22 is stretched, causing multiple sets of sliders 11 to slide along the inclined groove 13. Simultaneously, multiple sets of compression springs 26 reset and push the locking block 10 into the locking groove 14. The slider 11 is pulled to the top of the inclined groove 13 by the sliding rod 9, while simultaneously pushing the limiting sleeve 18 to... The push spring 19 compresses the limit sleeve 18. When the multiple sets of limit blocks 15 move to the outside of the limit groove 17, the limit sleeve 18 is released. The push spring 19 pushes the limit sleeve 18 to abut against the top of the multiple sets of limit blocks 15, so that the bottom of the multiple sets of limit blocks 15 abuts against the limit groove 17 and compresses the reset spring 16, thereby completing the limit of the control sleeve 12 and completing the installation of the rotating rod 3. The motor 6 is started to drive the rotating rod 3 to rotate. The rotating rod 3 drives the multiple sets of stirring paddles 4 to rotate. The raw materials are heated and melted by the heating tank 1 and stirred and fused by the multiple sets of stirring paddles 4.

[0030] More specifically, after melting is complete, stop motor 6, remove top cover 2 from top of heating tank 1, push limit sleeve 18 to release the contact with multiple sets of limit blocks 15, pull limit blocks 15 with multiple sets of reset springs 16 to release their bottom ends from limit grooves 17 to release the limit on control sleeve 12, pull control sleeve 12 to slide with tension spring 22, drive slider 11 to pull block 10 outward through multiple sets of inclined grooves 13 and squeeze compression spring 26, multiple sets of block 10 move outward and disengage from slot 14, release the connection on insertion rod 8, then the insertion rod 8 can be pulled out of fixing sleeve 7, then top cover 2 is removed and rotating rod 3 is taken out of heating tank 1.

[0031] In summary, the overall equipment is used or operated as follows: During use, the raw material is injected into the heating tank 1, then the rotating rod 3 is inserted into the top cover 2, and the top cover 2 is screwed onto the top of the heating tank 1. Next, the insert rod 8 is inserted into the fixing sleeve 7, and the adapter block 24 is inserted into the adapter groove 25. The control sleeve 12 is pushed, stretching the tension spring 22, causing multiple sets of sliders 11 to slide along the inclined groove 13. Simultaneously, multiple sets of compression springs 26 reset, pushing the locking block 10 into the locking groove 14. The slider 11 is pulled to the top of the inclined groove 13 by the sliding rod 9, simultaneously pushing the limit switch. The sleeve 18 presses against the push spring 19. When the multiple sets of limiting blocks 15 move to the outside of the limiting groove 17, the limiting sleeve 18 is released. The push spring 19 pushes the limiting sleeve 18 to abut against the top of the multiple sets of limiting blocks 15, so that the bottom of the multiple sets of limiting blocks 15 abuts against the limiting groove 17 and compresses the reset spring 16, thereby completing the limiting of the control sleeve 12 and completing the installation of the rotating rod 3. The motor 6 is started to drive the rotating rod 3 to rotate. The rotating rod 3 drives the multiple sets of stirring paddles 4 to rotate. The raw materials are heated and melted by the heating tank 1, and the raw materials are stirred and fused by the multiple sets of stirring paddles 4.

[0032] After melting is complete, stop motor 6, remove top cover 2 from top of heating tank 1, push limit sleeve 18 to release the contact with multiple sets of limit blocks 15, pull limit blocks 15 with multiple sets of reset springs 16 to release their bottom ends from limit grooves 17 to release the limit on control sleeve 12, pull control sleeve 12 to slide with tension spring 22, drive slider 11 to pull block 10 outward through multiple sets of inclined grooves 13 and squeeze compression spring 26, multiple sets of block 10 move outward and disengage from slot 14, release the connection on insertion rod 8, then the insertion rod 8 can be pulled out of fixing sleeve 7, then top cover 2 is removed and rotating rod 3 is taken out of heating tank 1.

[0033] Of all the solutions mentioned above, those involving connections between two components can be selected based on the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods. These will not be elaborated on here. For all the fixed connections mentioned above, welding is the preferred option. In all the solutions mentioned above, the operation of electrical components, unless otherwise specified, is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and wiring connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here. The specific models and specifications of the electrical components involved in this solution need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, and therefore will not be described in detail. Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be described in detail in this utility model. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A melting device for plastic processing, comprising a heating tank (1), characterized in that: The heating tank (1) is threadedly connected to a top cover (2). A stirring mechanism is provided on the top cover (2). The stirring mechanism includes a rotating rod (3) and a stirring paddle (4). The rotating rod (3) is movably connected to the inside of the top cover (2). The stirring paddle (4) is provided with multiple sets fixed to the outer wall of the rotating rod (3). A mounting bracket (5) is fixedly provided on the outer wall of the heating tank (1). A motor (6) is fixedly provided on the top surface of the mounting bracket (5). A fixing mechanism is provided between the output end of the motor (6) and the rotating rod (3). The fixing mechanism includes a fixing sleeve (7) and a plug rod (8). The fixing sleeve (7) fixes... At the output end of the motor (6), the plug rod (8) is fixed to the top of the rotating rod (3) and inserted into the fixed sleeve (7). The outer wall of the fixed sleeve (7) is provided with a sliding rod (9). The sliding rod (9) is provided in multiple sets and each of them is fixed with a locking block (10). The top of each of the multiple sets of sliding rods (9) is fixed with a slider (11). The outer wall of the fixed sleeve (7) is provided with a control sleeve (12). The outer wall of the control sleeve (12) is provided with a slanted groove (13). The slanted groove (13) is provided in multiple sets and is slidably connected to multiple sets of sliders (11). The outer wall of the plug rod (8) is provided with a locking groove (14).

2. The melting equipment for plastic processing according to claim 1, characterized in that: The outer wall of the control sleeve (12) is provided with a limiting block (15). There are multiple sets of the limiting block (15), and a reset spring (16) is connected between the top of each of them and the outer wall of the control sleeve (12). The outer wall of the fixed sleeve (7) is provided with a limiting groove (17). There are multiple sets of the limiting groove (17), and each set abuts against multiple sets of limiting blocks (15).

3. The melting equipment for plastic processing according to claim 2, characterized in that: A limiting sleeve (18) is slidably provided on the outer wall of the fixed sleeve (7), and a push spring (19) is provided between the limiting sleeve (18) and the fixed sleeve (7).

4. A melting device for plastic processing according to claim 3, characterized in that: The outer wall of the fixed sleeve (7) is provided with a guide groove (20), and the inner side of the control sleeve (12) is fixed with a guide block (21). The guide groove (20) and the guide block (21) are provided with multiple sets and are slidably connected.

5. A melting device for plastic processing according to claim 4, characterized in that: A tension spring (22) is provided between the control sleeve (12) and the fixed sleeve (7).

6. A melting device for plastic processing according to claim 5, characterized in that: The outer side of the fixed sleeve (7) is fixedly provided with a limiting rod (23), and the limiting rod (23) is provided in multiple sets and is slidably connected to the limiting sleeve (18).

7. A melting device for plastic processing according to claim 6, characterized in that: An adapter block (24) is fixedly provided on the outside of the plug (8), and an adapter groove (25) is provided on the inside of the fixing sleeve (7). Both the adapter block (24) and the adapter groove (25) are polygonal.

8. A melting device for plastic processing according to claim 7, characterized in that: multiple sets Compression springs (26) are provided between the card block (10) and the inner wall of the fixing sleeve (7).

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