A plastic article extruder

Abstract

The utility model discloses a kind of plastic product extruders, it is related to work technical field.A kind of plastic product extruder, including base, support frame, mixing tank and extrusion assembly, limit device is set on extrusion assembly, limit device includes mounting seat, extrusion head and three protective shells, three protective shells are fixedly connected in the outer wall of mounting seat, mounting seat is fixedly connected on one end of extrusion tank of extrusion assembly, the outer wall of three protective shells is rotatably connected with rotating threaded rod sleeve, the outer wall of mounting seat is provided with extrusion head mounting groove, by reverse rotation rotating threaded rod sleeve in limit device, make limiting block from first limiting block groove slide out, release the limiting of extrusion head, can be taken out from extrusion head mounting groove and replaced extrusion head, such disassembly extrusion head simple and fast, avoid staff to need to use a variety of tools and screw down bolt one by one, effectively improve the maintenance and overhaul efficiency of extrusion head.

Description

Technical Field

[0001] This utility model relates to the field of working technology, and in particular to a plastic product extruder. Background Technology

[0002] In the field of plastic product manufacturing, the extruder is a core piece of equipment, and the performance of the extrusion head in its extrusion components directly affects production efficiency and product quality.

[0003] Traditional plastic extruders often use a fixed connection between the extrusion head and the extruder body. When producing plastic products of different specifications, the extrusion head needs to be frequently changed to adapt to different molds and process requirements. However, this fixed connection method is extremely cumbersome to disassemble. Operators need to use various tools to unscrew the bolts one by one. This is not only time-consuming and labor-intensive, but also prone to stripping and corrosion of the bolts during repeated disassembly, further increasing the difficulty of disassembly and even damaging the connection between the extrusion head and the extruder body. Welded extrusion heads are even more difficult to disassemble. If forcibly disassembled, it will cause irreversible damage to the equipment, greatly increasing the equipment maintenance and replacement costs, and thus reducing the practicality of the equipment. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a plastic product extruder that can solve the problem of frequently changing the extrusion head to adapt to different molds and process requirements when producing plastic products of different specifications. However, the disassembly process of this fixed connection method is extremely cumbersome, requiring operators to use a variety of tools to unscrew the bolts one by one. This is not only time-consuming and labor-intensive, but also prone to stripping and corrosion of the bolts during repeated disassembly, which further increases the difficulty of disassembly and may even damage the connection between the extrusion head and the extruder body. Welded extrusion heads are even more difficult to disassemble. If forcibly disassembled, it will cause irreversible damage to the equipment, greatly increasing the equipment maintenance and replacement costs, and thus reducing the practicality of the equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a plastic product extruder, comprising a base, a support frame, a mixing tank, and an extrusion assembly, wherein a limit device is provided on the extrusion assembly;

[0006] The limiting device includes a mounting base, an extrusion head, and three protective shells. The three protective shells are all fixedly connected to the outer wall of the mounting base. The mounting base is fixedly connected to one end of the extrusion can on the extrusion assembly. The outer walls of the three protective shells are rotatably connected to rotating threaded rod sleeves. The outer wall of the mounting base is provided with an extrusion head mounting groove. One end of the outer wall of the extrusion head is slidably connected to the inside of the extrusion head mounting groove. The inner wall of the extrusion head mounting groove is provided with three second limiting block grooves.

[0007] Among them, the inner side of the second limiting block groove is slidably connected to the limiting block, and the inner side of each of the three second limiting block grooves is provided with a rotating threaded rod. The outer wall of one end of the rotating threaded rod is threadedly connected to the inner side of the rotating threaded rod sleeve. The outer wall of the extrusion head near the mounting seat has three first limiting block grooves.

[0008] Preferably, the interior of the extruder mounting groove communicates with the interior of the extrusion can on the extrusion assembly, and the sealing ring installed on the outer wall of the end of the extruder near the mounting base contacts the inner wall of the extruder mounting groove.

[0009] Among them, the three rotating threaded rod sleeves extend into the interior of the second limit block groove from one end near the limit block.

[0010] Preferably, the ends of the three limiting blocks near the first limiting block groove all slide into the interior of the extruder mounting groove and are respectively slidably connected to the interior of the corresponding first limiting block groove;

[0011] Among them, the ends of the three rotating threaded rods near the limiting blocks are respectively rotatably connected to the outer wall of one end of the corresponding limiting block.

[0012] Preferably, the extrusion assembly is fixedly mounted on the base, the support frame is U-shaped, and the lower end of the mixing tank is fixedly mounted on the upper end of the support frame;

[0013] The upper extrusion tank of the extrusion assembly is rotatably connected to a screw conveyor shaft, and the upper end of the mixing tank is fixedly connected to a feed pipe.

[0014] Preferably, the extrusion assembly is fixedly mounted on the base, the support frame is U-shaped, and the lower end of the mixing tank is fixedly mounted on the upper end of the support frame;

[0015] The upper extrusion tank of the extrusion assembly is rotatably connected to a screw conveyor shaft, and the upper end of the mixing tank is fixedly connected to a feed pipe.

[0016] Preferably, the lower end of the mixing tank is connected to the extrusion tank on the extrusion assembly via a connecting pipe, and a stirring shaft is rotatably connected inside the mixing tank;

[0017] The mixing tank has a first motor fixedly connected to its upper surface. The output end of the first motor extends into the interior of the mixing tank and is fixedly connected to one end of the stirring shaft.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This plastic extruder uses a limiting device to rotate the threaded rod sleeve in the opposite direction, causing the limiting block to slide out of the first limiting block groove, thus releasing the limiting of the extrusion head. The extrusion head can then be removed from the extrusion head mounting groove for replacement. This method of disassembling the extrusion head is simple and quick, avoiding the need for workers to use multiple tools to unscrew the bolts one by one, and effectively improving the maintenance and repair efficiency of the extrusion head. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the external structure of the extrusion head of this utility model;

[0023] Figure 3 This utility model Figure 2 A structural schematic diagram of the enlarged view at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the internal structure of the mixing tank of this utility model.

[0025] Reference numerals: 1. Base; 2. Support frame; 3. Mixing tank; 4. Feed pipe; 5. First motor; 6. Extrusion assembly; 7. Extrusion head; 8. Rotating threaded rod sleeve; 9. Protective shell; 10. Mounting seat; 11. First limiting block groove; 12. Rotating threaded rod; 13. Second limiting block groove; 14. Extrusion head mounting groove; 15. Limiting block; 16. Screw conveyor shaft; 17. Second motor; 18. Stirring shaft. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a plastic product extruder, including a base 1, a support frame 2, a mixing tank 3 and an extrusion assembly 6;

[0031] A limit device is provided on the extrusion assembly 6;

[0032] The limiting device includes a mounting base 10, an extruder head 7, and three protective shells 9. All three protective shells 9 are fixedly connected to the outer wall of the mounting base 10, which is fixedly connected to one end of the extrusion can on the extrusion assembly 6. A rotating threaded rod sleeve 8 is rotatably connected to the outer wall of each of the three protective shells 9. An extruder head mounting groove 14 is formed on the outer wall of the mounting base 10, and the interior of the extruder head mounting groove 14 communicates with the interior of the extrusion can on the extrusion assembly 6. One end of the outer wall of the extruder head 7 is slidably connected to the interior of the extruder head mounting groove 14. Three second limiting block grooves 13 are formed on the inner wall of the extruder head mounting groove 14. A sealing ring installed on the outer wall of the end of the extruder head 7 closest to the mounting base 10 contacts the inner wall of the extruder head mounting groove 14. The internal sliding connection of the 13 is limited by the limit block 15. The interior of each of the three second limit block slots 13 is provided with a rotating threaded rod 12. The end of each of the three rotating threaded rod sleeves 8 near the limit block 15 extends rotatably into the interior of the second limit block slot 13. The outer wall of one end of the rotating threaded rod 12 is threadedly connected to the interior of the rotating threaded rod sleeve 8. The outer wall of the end of the extruder 7 near the mounting base 10 is provided with three first limit block slots 11. The ends of the three limit blocks 15 near the first limit block slots 11 all slide into the interior of the extruder mounting slot 14 and are respectively slidably connected to the interior of the corresponding first limit block slot 11. The ends of the three rotating threaded rods 12 near the limit blocks 15 are respectively rotatably connected to the outer wall of one end of the corresponding limit block 15.

[0033] The extrusion assembly 6 is fixedly installed on the base 1, the support frame 2 is U-shaped, the lower end of the mixing tank 3 is fixedly installed on the upper end of the support frame 2, the upper extrusion tank of the extrusion assembly 6 is rotatably connected to the screw conveyor shaft 16, the upper end of the mixing tank 3 is fixedly connected to the feed pipe 4, the inside of the feed pipe 4 is connected to the inside of the mixing tank 3, the upper extrusion tank of the extrusion assembly 6 is fixedly mounted on the end plate away from the extrusion head 7, the output end of the second motor 17 rotatably extends into the upper extrusion tank of the extrusion assembly 6 and is fixedly connected to one end of the screw conveyor shaft 16, the lower end of the mixing tank 3 is connected to the upper extrusion tank of the extrusion assembly 6 through the connecting pipe, the inside of the mixing tank 3 is rotatably connected to the stirring shaft 18, the upper surface of the mixing tank 3 is fixedly connected to the first motor 5, the output end of the first motor 5 rotatably extends into the inside of the mixing tank 3 and is fixedly connected to one end of the stirring shaft 18.

[0034] Furthermore, when using this device, the plastic extruder starts working by connecting to an external power source. The plastic raw material first enters the mixing tank 3 through the feed pipe 4. At this time, the first motor 5, installed on the upper surface of the mixing tank 3, starts, driving the stirring shaft 18 to rotate and stir the plastic raw material entering the mixing tank 3. The rotation of the stirring shaft 18 allows the plastic raw material to tumble and mix thoroughly within the mixing tank 3, ensuring uniform mixing and providing a stable quality raw material for subsequent extrusion molding. The uniformly mixed plastic raw material enters the extrusion tank of the extrusion assembly 6 through the connecting pipe at the lower end of the mixing tank 3. Then, the second motor 17, installed on the fixing plate at the end of the extrusion tank away from the extrusion head 7, starts, driving the screw conveyor shaft 16 to rotate within the extrusion tank. The rotation of the screw conveyor shaft 16 conveys the mixed raw material forward along the axial direction of the extrusion tank, while simultaneously extruding the material, causing it to gradually move towards the extrusion head 7 under pressure. During the installation of the extrusion head 7, one end of the extrusion head 7 is first inserted into the extrusion head mounting groove 14 of the mounting base 10, so that its outer wall contacts the inner wall of the extrusion head mounting groove 14. At this time, the extrusion head 7 is close to the mounting base. The sealing ring on one end of the outer wall of the 10th section acts as a seal to prevent raw material leakage. Then, the rotating threaded rod sleeve 8 is rotated. Since the rotating threaded rod sleeve 8 is threadedly connected to the rotating threaded rod 12, the rotation of the rotating threaded rod sleeve 8 will drive the rotating threaded rod 12 to move axially. When the rotating threaded rod 12 moves, it pushes the limiting block 15 to slide in the second limiting block groove 13. When the limiting block 15 slides and extends into the first limiting block groove 11 on the outer wall of the extruder head 7, it achieves the limiting and fixing of the extruder head 7, ensuring that the position of the extruder head 7 is stable during the extrusion process. As the screw conveyor shaft 16 continuously... Extrusion and conveying: Under pressure, plastic raw materials are extruded through extruder 7 and shaped into the required plastic products according to the shape and size of extruder 7. During the extrusion process, the limiting device ensures the stability of extruder 7 and avoids displacement of extruder 7 due to factors such as extrusion pressure, thereby ensuring the shape, dimensional accuracy and quality of the extruded products. When it is necessary to replace extruder 7, the threaded rod sleeve 8 is rotated in the reverse direction to make the limiting block 15 slide out of the first limiting block groove 11, thereby releasing the limiting of extruder 7 and allowing extruder 7 to be removed from extruder mounting groove 14 for replacement.

[0035] By rotating the threaded sleeve 8 in the opposite direction in the limiting device, the limiting block 15 slides out of the first limiting block groove 11, releasing the limitation on the extrusion head 7. The extrusion head 7 can then be removed from the extrusion head mounting groove 14 for replacement. This method of disassembling the extrusion head 7 is simple and quick, avoiding the need for workers to use multiple tools to unscrew the bolts one by one, and effectively improving the maintenance and repair efficiency of the extrusion head 7.

[0036] Structural Description: Base 1: As the basic support component of the entire extruder, it provides a stable mounting platform for other components such as the extrusion assembly 6. Its robust structure can withstand various weights and mechanical forces during the operation of the extruder, ensuring that the extruder remains stable during operation and preventing displacement and tilting caused by vibration or load.

[0037] Support frame 2: It has a "U" shaped structure and its main function is to support the mixing tank 3. Its unique shape design can provide reliable fixation and stable support for the mixing tank 3, so that the mixing tank 3 remains vertical and stable during operation. It also provides a reasonable spatial structure for the overall layout of the extruder.

[0038] Mixing tank 3: The lower end is fixedly installed on the upper end of the support frame 2. It is an important container for the initial mixing of plastic raw materials. The upper end is fixedly connected to the feed pipe 4 for inputting plastic raw materials. The internal rotating connection is to the stirring shaft 18, which is driven by the first motor 5 installed on the upper surface of the mixing tank 3. The rotation of the stirring shaft 18 realizes the stirring and mixing of plastic raw materials, so that the raw materials are mixed evenly and prepared for subsequent extrusion molding. The lower end is connected to the extrusion tank on the extrusion assembly 6 through the connecting pipe, so that the mixed raw materials are transported to the extrusion tank.

[0039] Feed pipe 4: It is fixedly connected to the upper end of the mixing tank 3 and its interior is connected to the interior of the mixing tank 3. It is the channel for plastic raw materials to enter the mixing tank 3. Through the feed pipe 4, the plastic raw materials can smoothly enter the mixing tank 3 and start the mixing process.

[0040] First motor 5: Installed on the upper surface of mixing tank 3, its output end extends rotatably into the interior of mixing tank 3 and is fixedly connected to one end of stirring shaft 18. First motor 5 serves as the power source of mixing tank 3, providing rotational power to stirring shaft 18, driving stirring shaft 18 to rotate, and realizing the stirring and mixing operation of plastic raw materials in mixing tank 3.

[0041] Extrusion assembly 6: Fixedly installed on the base 1, it is the core component of plastic product extrusion molding. Inside the extrusion tank, there is a rotatably connected screw conveyor shaft 16, which is driven by a second motor 17 installed on a fixed plate at the end of the extrusion tank away from the extrusion head 7. The extrusion tank is connected to the mixing tank 3 through a connecting pipe, receives the mixed raw materials conveyed from the mixing tank 3, and under the action of the screw conveyor shaft 16, conveys and extrudes the raw materials forward, and finally extrudes them through the extrusion head 7.

[0042] Extruder 7: One end of its outer wall is slidably connected to the inside of the extruder mounting groove 14 on the mounting base 10. It is a key component for plastic raw material extrusion molding. A sealing ring is installed on the outer wall of the end near the mounting base 10, which contacts the inner wall of the extruder mounting groove 14 to play a sealing role and prevent raw material leakage. Three first limiting block grooves 11 are opened on the outer wall, which cooperate with the limiting block 15 to realize the limiting and fixing of the extruder 7 on the mounting base 10, ensuring the stability of the position of the extruder 7 during the extrusion process and ensuring the shape and dimensional accuracy of the extruded product.

[0043] Rotating threaded rod sleeve 8: The outer wall is rotatably connected to three protective shells 9, and one end extends rotatably into the second limiting block groove 13 and is threadedly connected to the outer wall of the rotating threaded rod 12. By rotating the rotating threaded rod sleeve 8, the rotating threaded rod 12 can be driven to move axially, thereby pushing the limiting block 15 to slide in the second limiting block groove 13 and the first limiting block groove 11, so as to limit and fix the extrusion head 7.

[0044] Protective shell 9: Fixedly connected to the outer wall of the mounting base 10, there are three in total, mainly serving a protective function, protecting the rotating threaded rod sleeve 8 and other components, preventing interference and damage from external factors during the operation of the extruder, and also providing certain safety protection for the operators;

[0045] Mounting base 10: It is fixedly connected to one end of the extrusion can on the extrusion assembly 6. The outer wall is provided with an extrusion head mounting groove 14 for installing the extrusion head 7. The outer wall is also fixedly connected with three protective shells 9, which provide installation and protection space for components such as rotating threaded rod sleeve 8. Through its structural design, the installation, positioning and fixing of the extrusion head 7, as well as its connection with the extrusion assembly 6, are realized.

[0046] Rotating threaded rod 12: One end of the outer wall is connected to the internal thread of the rotating threaded rod sleeve 8, and the other end is rotatably connected to one end of the outer wall of the corresponding limiting block 15. Driven by the rotating threaded rod sleeve 8, the rotating threaded rod 12 can move axially and push the limiting block 15 to limit and fix the extrusion head 7. Furthermore, its rotational connection with the limiting block 15 can adapt to the angle change of the limiting block 15 during the sliding process.

[0047] Limiting block 15: It is slidably connected in the second limiting block groove 13, and one end can slide to the inside of the extruder mounting groove 14 and slide to connect with the first limiting block groove 11. By sliding the limiting block 15 in the second limiting block groove 13 and the first limiting block groove 11, the extruder 7 is limited and fixed, preventing the extruder 7 from being displaced during the extrusion process, and ensuring the stability of the extrusion molding and the product quality.

[0048] Screw conveyor shaft 16: Rotatably connected to the inside of the extrusion tank on the extrusion assembly 6, driven by the second motor 17. Its main function is to convey the mixed raw materials from the mixing tank 3 forward in the extrusion tank and squeeze the raw materials so that the raw materials are extruded and shaped through the extrusion head 7 under pressure. It is a key transmission component for realizing the extrusion of plastic raw materials.

[0049] The second motor 17 is mounted on a fixed plate at the end of the extrusion can away from the extrusion head 7 on the extrusion assembly 6. Its output end extends rotatably into the interior of the extrusion can and is fixedly connected to one end of the screw conveyor shaft 16. The second motor 17 serves as the power source for the extrusion assembly 6, providing rotational power to the screw conveyor shaft 16 and driving the screw conveyor shaft 16 to rotate, thereby realizing the conveying and extrusion operation of plastic raw materials.

[0050] Stirring shaft 18: Rotatably connected inside the mixing tank 3 and driven by the first motor 5. The stirring shaft 18 rotates under the drive of the first motor 5 to stir and mix the plastic raw materials in the mixing tank 3, so that the raw materials are fully and evenly mixed, improve the mixing quality of the raw materials, and provide good raw material conditions for subsequent extrusion molding.

[0051] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A plastic extruder, comprising a base (1), a support frame (2), a mixing tank (3), and an extrusion assembly (6), characterized in that: The extrusion assembly (6) is provided with a limiting device; The limiting device includes a mounting base (10), an extruder head (7), and three protective shells (9). The three protective shells (9) are all fixedly connected to the outer wall of the mounting base (10). The mounting base (10) is fixedly connected to one end of the extrusion can on the extrusion assembly (6). The outer walls of the three protective shells (9) are rotatably connected to rotating threaded rod sleeves (8). The outer wall of the mounting base (10) is provided with an extruder head mounting groove (14). One end of the outer wall of the extruder head (7) is slidably connected to the inside of the extruder head mounting groove (14). The inner wall of the extruder head mounting groove (14) is provided with three second limiting block grooves (13). Among them, the inner sliding connection of the second limiting block groove (13) is a limiting block (15), and the inner of each of the three second limiting block grooves (13) is provided with a rotating threaded rod (12). The outer wall of one end of the rotating threaded rod (12) is connected to the inner thread of the rotating threaded rod sleeve (8). The outer wall of the extrusion head (7) near the mounting base (10) is provided with three first limiting block grooves (11).

2. The plastic product extruder according to claim 1, characterized in that: The interior of the extruder mounting groove (14) is connected to the interior of the extrusion can on the extrusion assembly (6), and the sealing ring installed on the outer wall of the end of the extruder (7) near the mounting base (10) is in contact with the inner wall of the extruder mounting groove (14); Among them, the three rotating threaded rod sleeves (8) extend into the interior of the second limiting block groove (13) at one end near the limiting block (15).

3. The plastic product extruder according to claim 1, characterized in that: The three limiting blocks (15) extend slidably into the interior of the extruder mounting groove (14) at one end near the first limiting block groove (11) and are slidably connected to the interior of the corresponding first limiting block groove (11); Among them, the ends of the three rotating threaded rods (12) near the limiting block (15) are respectively rotatably connected to the outer wall of one end of the corresponding limiting block (15).

4. A plastic product extruder according to claim 1, characterized in that: The extrusion assembly (6) is fixedly installed on the base (1), the support frame (2) is U-shaped, and the lower end of the mixing tank (3) is fixedly installed on the upper end of the support frame (2); Among them, the upper extrusion tank of the extrusion assembly (6) is rotatably connected to a screw conveyor shaft (16), and the upper end of the mixing tank (3) is fixedly connected to a feed pipe (4).

5. A plastic product extruder according to claim 4, characterized in that: The inside of the feed pipe (4) is connected to the inside of the mixing tank (3), and a second motor (17) is installed on the fixing plate at the end of the extrusion tank away from the extrusion head (7) on the extrusion assembly (6); The output end of the second motor (17) extends rotatably into the extrusion can of the extrusion assembly (6) and is fixedly connected to one end of the screw conveyor shaft (16).

6. A plastic product extruder according to claim 1, characterized in that: The lower end of the mixing tank (3) is connected to the extrusion tank on the extrusion assembly (6) via a connecting pipe, and a stirring shaft (18) is rotatably connected inside the mixing tank (3); The mixing tank (3) is fixedly connected to the upper surface of the mixing tank (3), and the output end of the first motor (5) extends rotatably into the interior of the mixing tank (3) and is fixedly connected to one end of the stirring shaft (18).

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