Engineering plastic extrusion die quick replacement device

By combining the electric telescopic rod with the positioning block and the docking plate, the problem of slow mold replacement speed caused by traditional bolt connections is solved, enabling rapid replacement of engineering plastic extrusion molds and improving production efficiency.

CN224374810UActive Publication Date: 2026-06-19SHANGHAI WOTI NEW MATERIAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI WOTI NEW MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Traditional engineering plastic extrusion dies are fixed by bolts, which makes the die replacement process cumbersome, time-consuming, and affects production efficiency.

Method used

The electric telescopic rod design allows for quick assembly and disassembly of the extrusion mold through the cooperation of the positioning block and the docking plate with the electric telescopic rod, replacing the traditional bolt fixing method.

Benefits of technology

It significantly shortens mold changeover time, improves mold changeover speed and equipment usability, and simplifies operation procedures.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224374810U_ABST
    Figure CN224374810U_ABST
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Abstract

The utility model discloses an engineering plastic extrusion die quick replacement equipment relates to plastic extrusion die technical field, including base, the top fixed mounting of base has the extruder main body, the top fixed mounting of extruder main body has the blanking barrel, one side fixed mounting of extruder main body has the first mounting plate, one side of first mounting plate is provided with second mounting plate, one side fixed mounting of second mounting plate has extrusion die body, and the inside of first mounting plate is provided with the discharge through slot, and the discharge through slot is located one side of extrusion die body, and the between second mounting plate and first mounting plate is provided with fixed component, through the mounting design of two electric telescopic link, can conveniently second mounting plate drives the quick dismounting of extrusion die body, effectively replaced traditional complicated bolt fixed mode to greatly shorten the replacement time of extrusion die body, can make the replacement speed of extrusion die body faster, further improved the practicality of this replacement equipment.
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Description

Technical Field

[0001] This utility model relates to the field of plastic extrusion die technology, and in particular to a quick change device for engineering plastic extrusion dies. Background Technology

[0002] In the field of engineering plastics extrusion molding, rapid die replacement is of great significance for improving production efficiency and reducing production costs. With the increasing demand for diversified engineering plastic products, companies need to frequently change extrusion dies to produce products of different specifications and shapes. Currently, most traditional engineering plastics extrusion dies are fixed by bolts. When changing dies, operators need to use tools to remove and install bolts one by one. The operation is cumbersome and time-consuming, making it inconvenient to quickly disassemble and assemble the extrusion die, thus slowing down the die replacement speed. Therefore, there is a need for a die replacement device that can quickly disassemble and assemble the extrusion die. Utility Model Content

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a quick replacement device for engineering plastic extrusion molds. This device can solve the problem that most traditional engineering plastic extrusion molds are fixed by bolts. When changing the mold, the operator needs to use tools to remove and install bolts one by one. The operation process is cumbersome and time-consuming, which makes it inconvenient to quickly disassemble and assemble the extrusion mold, thus making the speed of extrusion mold replacement slow.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick-change device for engineering plastic extrusion molds, comprising a base, an extruder body fixedly mounted on the top of the base, a feed cylinder fixedly mounted on the top of the extruder body, a first mounting plate fixedly mounted on one side of the extruder body, a second mounting plate disposed on one side of the first mounting plate, an extrusion mold body fixedly mounted on one side of the second mounting plate, a discharge channel provided inside the first mounting plate, the discharge channel being located on one side of the extrusion mold body, a fixing assembly disposed between the second mounting plate and the first mounting plate, the fixing assembly comprising two positioning blocks, two mating plates fixedly connected to the opposite ends of the two positioning blocks, and one side of each of the two positioning blocks and the two mating plates being fixedly connected to one side of the second mounting plate.

[0005] Preferably, two positioning grooves are provided on one side of the first mounting plate, and the two positioning grooves are respectively located on the upper and lower sides of the discharge channel, and the inner walls of the two positioning grooves are respectively slidably adapted to the outer surface of the corresponding positioning block.

[0006] Preferably, two docking grooves are formed at the opposite ends of the two positioning grooves. The two docking grooves are located on the left and right sides of the discharge channel, respectively, and the interior of the two docking grooves slides and adapts to the outer surface of the corresponding docking plate.

[0007] Preferably, the first mounting plate has circular grooves on both sides, and the interior of the two circular grooves is connected to the interior of the corresponding docking groove. Electric telescopic rods are fixedly installed on both sides of the first mounting plate, and the relative output ends of the two electric telescopic rods slide through the interior of the corresponding circular grooves.

[0008] Preferably, both of the docking plates have through holes inside, and the interior of each through hole is slidably connected to the outer surface of the corresponding electric telescopic rod.

[0009] Preferably, the opposite ends of the inner walls of the two docking grooves are provided with fixing grooves, and the opposite ends of the two electric telescopic rods slide through the interior of the corresponding through holes and extend into the interior of the corresponding fixing grooves.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This engineering plastic extrusion die quick change equipment, through the installation design of two electric telescopic rods, can facilitate the quick disassembly and assembly of the extrusion die body driven by the second mounting plate, effectively replacing the traditional cumbersome bolt fixing method, thereby greatly shortening the replacement time of the extrusion die body, enabling the replacement speed of the extrusion die body to be faster, and further improving the practicality of the replacement equipment. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0013] Figure 1 This is a three-dimensional structural diagram of a quick-change equipment for engineering plastic extrusion dies according to the present invention;

[0014] Figure 2 This is a schematic diagram of the first mounting plate structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the docking plate structure of this utility model;

[0016] Figure 4 For the present utility model Figure 2 Enlarged view of point A in the image.

[0017] Reference numerals: 1. Base; 2. Extruder body; 3. Feeding cylinder; 4. First mounting plate; 5. Second mounting plate; 6. Extrusion die; 7. Positioning groove; 8. Positioning block; 9. Electric telescopic rod; 10. Connecting groove; 11. Fixing groove; 12. Discharge channel; 13. Connecting plate; 14. Through hole; 15. Circular slide. Detailed Implementation

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a quick-change device for engineering plastic extrusion molds, including a base 1, an extruder body 2 fixedly installed at the top of the base 1, a feed cylinder 3 fixedly installed at the top of the extruder body 2, a first mounting plate 4 fixedly installed on one side of the extruder body 2, a second mounting plate 5 provided on one side of the first mounting plate 4, an extrusion mold body 6 fixedly installed on one side of the second mounting plate 5, a discharge channel 12 opened inside the first mounting plate 4, the discharge channel 12 being located on one side of the extrusion mold body 6, a fixing component provided between the second mounting plate 5 and the first mounting plate 4, the fixing component including two positioning blocks 8, two docking plates 13 fixedly connected to the opposite ends of the two positioning blocks 8, and one side of each of the two positioning blocks 8 and the two docking plates 13 being fixedly connected to one side of the second mounting plate 5.

[0023] Furthermore, two positioning grooves 7 are provided on one side of the first mounting plate 4. The two positioning grooves 7 are respectively located on the upper and lower sides of the discharge channel 12, and the inner walls of the two positioning grooves 7 are respectively slidably adapted to the outer surface of the corresponding positioning block 8.

[0024] Furthermore, two docking grooves 10 are provided at the opposite ends of the two positioning grooves 7. The two docking grooves are located on the left and right sides of the discharge channel 12, respectively. The interior of the two docking grooves 10 is slidably adapted to the outer surface of the corresponding docking plate 13.

[0025] Furthermore, circular grooves 15 are provided on both sides of the first mounting plate 4. The interior of the two circular grooves 15 is connected to the interior of the corresponding docking grooves 10. Electric telescopic rods 9 are fixedly installed on both sides of the first mounting plate 4. The relative output ends of the two electric telescopic rods 9 slide through the interior of the corresponding circular grooves 15.

[0026] Furthermore, each of the two docking plates 13 has a through hole 14 inside, and the interior of the two through holes 14 is slidably connected to the outer surface of the corresponding electric telescopic rod 9.

[0027] Furthermore, the opposite ends of the inner walls of the two docking grooves 10 are provided with fixing grooves 11, and the opposite ends of the two electric telescopic rods 9 slide through the interior of the corresponding through holes 14 and extend into the interior of the corresponding fixing grooves 11.

[0028] Furthermore, when installing the extrusion die body 6, since the second mounting plate 5 is fixedly connected to the extrusion die body 6, the operator brings the extrusion die body 6 with the second mounting plate 5 close to the first mounting plate 4. At this time, the two positioning blocks 8 on one side of the second mounting plate 5 are inserted into the two positioning slots 7 respectively, thereby playing a preliminary positioning role to ensure the accuracy of the horizontal position of the extrusion die body 6. At the same time, the two docking plates 13 are also inserted into the two docking slots 10 respectively, further ensuring the stable installation of the extrusion die body 6 and making the extrusion die body 6 precisely aligned with the discharge channel 12 inside the first mounting plate 4 so that the material can be extruded smoothly.

[0029] Furthermore, after initial positioning, the electric telescopic rods 9 on both sides are activated. Then, the output ends of the two electric telescopic rods 9 slide through the interior of the two through holes 14, and then the output ends of the two electric telescopic rods 9 respectively enter the interior of the corresponding fixing grooves 11, thereby firmly fixing the two mating plates 13 inside the two mating grooves 10. This allows the second mounting plate 5 to be securely installed on one side of the first mounting plate 4, thus achieving rapid and secure fixing of the extrusion die body 6. This effectively replaces the traditional and cumbersome bolt fixing method, thereby significantly shortening the replacement time of the extrusion die body 6 and enabling faster replacement of the extrusion die body 6, further improving the practicality of the replacement equipment.

[0030] Furthermore, when it is necessary to replace the extrusion die body 6, the two electric telescopic rods 9 are activated again, causing their relative output ends to retract from the inside of the two through holes 14 and the two fixing grooves 11, thereby disengaging the two docking plates 13. Then, the second mounting plate 5 is pulled out from the first mounting plate 4, and then the positioning block 8 slides out from the positioning groove 7, and the docking plate 13 slides out from the docking groove 10. This allows for the quick disassembly of the old die, so that the new extrusion die body 6 can be installed to continue the extrusion production of engineering plastics.

[0031] Furthermore, the installation design of the two electric telescopic rods 9 facilitates the quick assembly and disassembly of the extrusion die body 6 driven by the second mounting plate 5, effectively replacing the traditional cumbersome bolt fixing method, thereby significantly shortening the replacement time of the extrusion die body 6 and enabling faster replacement of the extrusion die body 6, further improving the practicality of the replacement equipment.

[0032] Structural Description:

[0033] Base 1: As the basic load-bearing component of the entire equipment, it provides a stable support platform for the extruder body and other components, ensuring the stability and reliability of the equipment during operation.

[0034] Extruder body 2: The core working unit of the equipment, responsible for heating, melting and extruding engineering plastics, transforming solid plastic raw materials into materials with good flowability, creating conditions for subsequent extrusion molding through molds.

[0035] Feed cylinder 3: Installed at the top of the extruder body 2, it is mainly used to store engineering plastic raw materials and to deliver the raw materials to the inside of the extruder body 2 at a stable and uniform speed to ensure the continuity of the production process.

[0036] First mounting plate 4: Its internal discharge channel 12 is the channel for material to flow from the extruder body 2 to the mold. At the same time, through the positioning groove 7, docking groove 10 and other structures, it cooperates with the fixing components to achieve precise installation and firm fixation of the mold.

[0037] The second mounting plate 5 is fixedly connected to the extrusion die body 6 and serves as a transitional connection structure between the die and the first mounting plate 4. With the help of the positioning block 8, docking plate 13 and other components installed on it, it cooperates with the corresponding structure of the first mounting plate 4 to realize the positioning and fixing of the die.

[0038] Extrusion die body 6: The core component that determines the final shape and size of engineering plastic products. Under the extrusion action of the extruder body 2, the material is extruded through the die and formed into a product that meets the production requirements.

[0039] Positioning groove 7: It slides with positioning block 8 to achieve initial positioning during mold installation, ensuring the precise position of the mold in the horizontal direction and ensuring that the mold is precisely aligned with the discharge channel 12.

[0040] Positioning block 8: Works in conjunction with positioning groove 7 to complete the initial positioning of the mold, while limiting the horizontal displacement of the mold during installation and enhancing the stability of mold installation.

[0041] Docking groove 10: It slides and adapts to the docking plate 13. After the mold is initially positioned, it provides installation space for the docking plate 13, further stabilizes the mold, ensures accurate docking between the mold and the discharge channel 12, and ensures smooth material extrusion.

[0042] The docking plate 13, in conjunction with the docking groove 10, not only further stabilizes the mold, but also provides a connection point for the electric telescopic rod 9, thereby enabling the mold to be fixed and disassembled through the telescopic movement of the electric telescopic rod 9.

[0043] Discharge channel 12: This is the necessary channel for materials to flow from the main body 2 of the extruder to the die. Its precise alignment with the die is the key to ensuring that the materials are extruded and formed smoothly.

[0044] Circular groove 15: Provides a sliding track for the output end of the electric telescopic rod 9, allowing the electric telescopic rod 9 to extend and retract freely, thereby realizing the fixing and loosening operation of the docking plate 13.

[0045] Electric telescopic rod 9: Through the telescopic movement of the output end, it passes through the circular slide groove 15 and the through hole 14 on the docking plate 13 in sequence, and extends into the fixing groove 11 on the inner wall of the docking groove 10 to fix the docking plate 13, thereby firmly installing the second mounting plate 5 and the extrusion mold body 6 on the first mounting plate 4; when telescopically extending in the opposite direction, the docking plate 13 is released, realizing the quick disassembly of the mold and greatly improving the mold replacement efficiency.

[0046] Through hole 14: Provides a channel for the output end of the electric telescopic rod 9 to pass through the docking plate 13, so that the electric telescopic rod 9 can cooperate with the fixing groove 11 on the inner wall of the docking groove 10 to complete the fixing and loosening action of the docking plate 13.

[0047] Fixed groove 11: When the output end of the electric telescopic rod 9 extends into the fixed groove 11, the docking plate 13 can be firmly fixed in the docking groove 10 to achieve stable installation of the mold; when the electric telescopic rod 9 retracts, the docking plate 13 is released from fixation, which facilitates mold disassembly.

[0048] 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 quick-change device for engineering plastic extrusion dies, comprising a base (1), characterized in that: The extruder body (2) is fixedly installed on the top of the base (1), and the feed cylinder (3) is fixedly installed on the top of the extruder body (2). A first mounting plate (4) is fixedly installed on one side of the extruder body (2), and a second mounting plate (5) is provided on one side of the first mounting plate (4). An extrusion die body (6) is fixedly installed on one side of the second mounting plate (5). A discharge channel (12) is opened inside the first mounting plate (4). The discharge channel (12) is located on one side of the extrusion die body (6). A fixing component is provided between the second mounting plate (5) and the first mounting plate (4). The fixing component includes two positioning blocks (8). Two docking plates (13) are fixedly connected to the opposite ends of the two positioning blocks (8). One side of the two positioning blocks (8) and the two docking plates (13) are fixedly connected to one side of the second mounting plate (5).

2. The quick-change equipment for engineering plastic extrusion dies according to claim 1, characterized in that: Two positioning grooves (7) are provided on one side of the first mounting plate (4). The two positioning grooves (7) are respectively located on the upper and lower sides of the discharge channel (12). The inner walls of the two positioning grooves (7) are respectively slidably adapted to the outer surface of the corresponding positioning block (8).

3. The quick-change equipment for engineering plastic extrusion dies according to claim 2, characterized in that: Two docking grooves (10) are provided at opposite ends of the two positioning grooves (7). The two docking grooves are located on the left and right sides of the discharge channel (12), respectively. The interior of the two docking grooves (10) is slidably adapted to the outer surface of the corresponding docking plate (13).

4. The quick-change equipment for engineering plastic extrusion dies according to claim 1, characterized in that: Both sides of the first mounting plate (4) are provided with circular grooves (15), and the interior of the two circular grooves (15) are respectively connected to the interior of the corresponding docking groove (10). Both sides of the first mounting plate (4) are fixedly installed with electric telescopic rods (9), and the relative output ends of the two electric telescopic rods (9) slide through the interior of the corresponding circular grooves (15).

5. The quick-change equipment for engineering plastic extrusion dies according to claim 4, characterized in that: Both of the docking plates (13) have through holes (14) inside, and the interior of the two through holes (14) are slidably connected to the outer surface of the corresponding electric telescopic rod (9).

6. The quick-change equipment for engineering plastic extrusion dies according to claim 5, characterized in that: The opposing ends of the inner walls of the two docking grooves (10) are provided with fixing grooves (11), and the opposite ends of the two electric telescopic rods (9) slide through the interior of the corresponding through holes (14) and extend into the interior of the corresponding fixing grooves (11).