Electric hot melting sleeve extrusion equipment

Abstract

The utility model discloses an electric hot melting sleeve extrusion device which comprises a platform, a heating extrusion pipe assembly, a rolling and conveying mechanism, a die clamping mechanism and a clamping auxiliary mechanism, and the rolling and conveying mechanism comprises a rolling box, a driving motor, a transmission belt assembly, transmission teeth, a rolling shaft and a connecting hopper. The mold clamping mechanism comprises a forming assembly, a clamping outer pipe, a clamping inner pipe, a locking frame, a locking spring, a clamping groove and a rotating frame, the two sets of rolling shafts operate cooperatively through meshing transmission teeth, materials are fully rolled and conveyed, the density and uniformity of the raw materials are improved, the transmission belt assembly is connected with a driving motor and the rolling shafts, the transmission efficiency is high, operation is stable, and the production efficiency is high. The inner clamping pipe is inserted into the outer clamping pipe and matched with the clamping groove and the locking frame structure, rapid butt joint and positioning of the mold are achieved, the locking spring automatically pushes the locking frame to be embedded into the clamping groove, the connecting stability is enhanced, and the sealing ring is arranged to prevent molten materials from leaking.

Description

Technical Field

[0001] This utility model relates to the field of extrusion technology, and more specifically, to an electrothermal melt sleeve extrusion device. Background Technology

[0002] In existing technologies, the material addition process and mold connection and disassembly of electrothermal sleeve extrusion equipment still have certain limitations, which directly affect the production efficiency and ease of operation of the equipment. In traditional electrothermal sleeve extrusion equipment, there is a problem of poor crushing effect during the material addition process. The crushing system of traditional equipment often relies on simple crushing shafts or rollers. The transmission and processing of materials between these components may not be uniform. Due to the differences in material density, viscosity and particle size, some materials are not fully compacted and mixed during the crushing process, which affects the subsequent heating, extrusion and molding effects.

[0003] Traditional die clamping structures may have design flaws, resulting in an insufficiently secure connection between the die and the equipment. Unstable clamping can lead to loosening or displacement of the die during production, affecting extrusion quality and potentially causing equipment malfunction or damage. Frequent die changes and adjustments can cause production interruptions and reduce efficiency. In traditional equipment, die connections typically require complex manual operations, such as using screwdrivers and wrenches for disassembly. This not only increases the complexity of the operation but also requires time for disassembly and installation, thus extending downtime. This operation is particularly cumbersome and inconvenient when frequently changing dies of different specifications. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides an electrothermal melt sleeve extrusion device to solve the technical problems mentioned in the background art, such as poor crushing effect during the material addition process and inconvenience in connecting or replacing the mold.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electrothermal extrusion sleeve extrusion device, comprising a platform, a heated extrusion tube assembly, a rolling and conveying mechanism, a die clamping mechanism, and a clamping auxiliary mechanism. The rolling and conveying mechanism includes a rolling box, a drive motor, a transmission belt assembly, transmission teeth, rolling shafts, and a connecting bucket. Two sets of rolling shafts are rotatably installed inside the rolling box, and two sets of meshing transmission teeth are installed at one end of the rolling shafts. The transmission belt assembly connects the transmission teeth and the drive motor. The connecting bucket is installed at the top end of the side wall of the heated extrusion tube assembly. The bottom output end of the crushing box is connected to the connecting bucket. The mold clamping mechanism includes a forming component, a clamping outer tube, a clamping inner tube, a locking frame, a locking spring, a slot, and a rotating frame. The forming component is installed at one end of the clamping inner tube, which extends into the clamping outer tube. The locking frame is laterally slidably installed on the outer wall of the clamping outer tube. The rotating frame is limited and rotated on the outer wall of the clamping tube. The slot is located on the outer wall of the clamping inner tube. The locking spring is installed between the locking frame and the clamping outer tube, and pushes the locking frame to initially extend into the slot.

[0008] The present invention is further configured such that the snap-fit ​​auxiliary mechanism includes a push plate, a pressure plate, a rotating block, a fixing ring, a spring rod, and a mating hole. The push plate and the pressure plate are mounted on the rotating frame. The push plate can push the insertion frame away from the slot and rotate the rotating frame in the opposite direction. The pressure plate presses against the insertion frame to stably extend into the slot. The rotating block is symmetrically mounted on the top and bottom ends of the rotating frame. The fixing ring is fixedly mounted on the outer wall of the snap-fit ​​tube. The mating hole is set on the fixing ring. The spring rod is mounted on the rotating block. The spring rod extends into the mating hole step by step, so that the rotating block and the rotating frame rotate stably step by step.

[0009] The present invention is further configured such that a support base and a support frame are installed at the top end of the platform, and the heated extrusion tube assembly and the rolling box are installed on the support base and the support frame. The setting of the support base and the support frame facilitates the stable installation of the heated extrusion tube assembly and the rolling box.

[0010] The present invention is further configured such that an extrusion shaft assembly is rotatably mounted inside the heated extrusion tube assembly, and an extrusion motor is mounted at one end of the extrusion shaft assembly. The extrusion shaft assembly enhances the uniformity of material mixing and pushes it toward the forming port, thereby improving extrusion efficiency.

[0011] The present invention is further configured such that an adding hopper is installed at the top end of the crushing box, and the material is added into the crushing box through the adding hopper. The adding hopper facilitates the feeding of materials into the system, improves working efficiency, and supports continuous feeding.

[0012] The present invention is further configured such that an output pipe is installed at one end of the heated extrusion tube assembly, and the output pipe is connected to the forming assembly through the mold clamping mechanism. The output pipe facilitates the discharge of material from the extrusion tube.

[0013] The present invention is further configured such that a connecting plate is installed at one end of the snap-fit ​​outer tube, and the connecting plate is fixedly installed at one end of the output tube. The connecting plate enhances the mechanical strength and alignment accuracy between the mold and the main structure of the equipment.

[0014] The present invention is further configured such that a sealing ring is installed on the inner wall of the snap-fit ​​outer tube, and the outer wall of the snap-fit ​​inner tube is pressed against the sealing ring, thereby preventing the leakage of high-temperature molten materials and improving safety and cleanliness.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides an electrothermal melt sleeve extrusion device, which has the following beneficial effects:

[0017] This utility model is equipped with a crushing and conveying mechanism. Two sets of crushing shafts work together through meshing transmission teeth to fully crush and convey materials, improving the density and uniformity of raw materials. The transmission belt assembly connects the drive motor and the crushing shafts, which has high transmission efficiency, stable operation, and ensures continuous feeding. The connecting hopper connects the crushing box and the heated extrusion tube assembly, ensuring smooth material conveying and preventing blockage or backflow. The adding hopper is located on the top of the crushing box, which facilitates the addition of raw materials and automatic feeding, improving work efficiency.

[0018] This utility model is equipped with a mold clamping mechanism. The clamping inner tube is inserted into the clamping outer tube, and with the cooperation of the clamping groove and locking frame structure, the mold can be quickly connected and positioned. The locking spring automatically pushes the locking frame into the clamping groove to enhance the connection stability. The sealing ring is set to prevent the leakage of molten material, improve the safety and hygiene level. The molding components can be quickly disassembled and assembled, making it easy to change different mold specifications and adapt to diversified production needs.

[0019] This utility model is equipped with a snap-fit ​​auxiliary mechanism. The rotary push plate can quickly disengage the locking frame, and the rotary pressure plate can enhance the snap-fit ​​stability and reduce the complexity of operation. The rotating block, together with the spring rod and the mating hole design, ensures that the rotating frame rotates stably step by step, avoiding over-rotation or misalignment. The multi-stage limit and bidirectional pressing structure improves the reliability of the mold connection and meets the needs of long-term continuous operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the compaction box in this utility model;

[0022] Figure 3 This is a structural schematic diagram of the installation position of the molding component in this utility model;

[0023] Figure 4This is a schematic diagram of the mold clamping mechanism and clamping auxiliary mechanism in this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the mold clamping mechanism and the clamping auxiliary mechanism in this utility model.

[0025] In the diagram: 1. Platform; 2. Heated extrusion tube assembly; 3. Compactor box; 4. Drive motor; 5. Transmission belt assembly; 6. Transmission gear; 7. Compactor shaft; 8. Connecting hopper; 9. Forming assembly; 10. Snap-fit ​​outer tube; 11. Snap-fit ​​inner tube; 12. Locking frame; 13. Locking spring; 14. Slot; 15. Rotating frame; 16. Rotating push plate; 17. Rotating plate; 18. Rotating block; 19. Fixing ring; 20. Spring rod; 21. Mating hole; 22. Support seat; 23. Support frame; 24. Extrusion shaft assembly; 25. Extrusion motor; 26. Adding hopper; 27. Output tube; 28. Connecting plate; 29. ​​Sealing ring. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] Please see Figures 1-5An electrothermal extrusion sleeve extrusion device includes a platform 1, a heated extrusion tube assembly 2, a rolling and conveying mechanism, a die clamping mechanism, and a clamping auxiliary mechanism. The rolling and conveying mechanism includes a rolling box 3, a drive motor 4, a transmission belt assembly 5, transmission teeth 6, rolling shafts 7, and a connecting bucket 8. Two sets of rolling shafts 7 are rotatably installed inside the rolling box 3. Two sets of meshing transmission teeth 6 are installed at one end of the rolling shafts 7. The transmission belt assembly 5 connects the transmission teeth 6 and the drive motor 4. The connecting bucket 8 is installed at the top end of the side wall of the heated extrusion tube assembly 2. The bottom output end of the rolling box 3 is connected to the connecting bucket 8. The mold clamping mechanism includes a forming component 9, a clamping outer tube 10, a clamping inner tube 11, a locking frame 12, a locking spring 13, a clamping groove 14, and a rotating frame 15. The forming component 9 is installed at one end of the clamping inner tube 11, which extends into the clamping outer tube 10. The locking frame 12 is laterally slidably installed on the outer wall of the clamping outer tube 10. The rotating frame 15 is limited and rotated on the outer wall of the clamping tube. The clamping groove 14 is located on the outer wall of the clamping inner tube 11. The locking spring 13 is installed between the locking frame 12 and the clamping outer tube 10, and pushes the locking frame 12 to initially extend into the clamping groove 14.

[0030] In this embodiment, the raw material is conveyed from the crushing box 3 to the heated extrusion tube assembly 2. The operator pours the material into the crushing box 3 through the adding hopper 26 at the top of the crushing box 3. The drive motor 4 transmits power to the transmission gears 6 through the transmission belt assembly 5. The two sets of meshing transmission gears 6 transmit power to the two crushing shafts 7, causing them to rotate relative to each other. The two crushing shafts 7 rotate at high speed and mesh with each other to stir and convey the incoming material. The material is sent from the bottom output end of the crushing box 3 into the connecting hopper 8 connected to one side. The connecting hopper 8 introduces the material into the heated extrusion tube assembly 2, preparing it for the next stage of heating, plasticizing, and molding. The inner tube 11 is then engaged. One end is equipped with a forming component 9, and the other end is inserted into the snap-fit ​​outer tube 10. The snap-fit ​​outer tube 10 is fixedly installed at one end of the output tube 27 and is fixedly connected to the output tube 27 through the connecting plate 28 on it. The outer wall of the snap-fit ​​inner tube 11 is provided with a slot 14 for cooperating with the locking structure. The locking spring 13 is located between the locking frame 12 and the snap-fit ​​outer tube 10, providing elastic force. The elastic force pushes the locking frame 12 to slide laterally, so that it initially extends into the slot 14, realizing the initial positioning of the snap-fit ​​inner tube 11. The inner wall of the snap-fit ​​outer tube 10 is equipped with a sealing ring 29. After the snap-fit ​​inner tube 11 is inserted, the outer wall presses against the sealing ring 29 to form a seal and prevent the leakage of molten material.

[0031] The locking auxiliary mechanism includes a rotary push plate 16, a rotary pressure plate 17, a rotating block 18, a fixing ring 19, a spring rod 20, and a mating hole 21. The rotary push plate 16 and the rotary pressure plate 17 are mounted on the rotating frame 15. Rotating the push plate 16 can push the extension frame away from the locking slot 14 and rotate the rotating frame 15 in the opposite direction. The rotary pressure plate 17 presses against the extension frame and stably extends into the locking slot 14. The rotating block 18 is symmetrically mounted on the top and bottom ends of the rotating frame 15. The fixing ring 19 is fixedly mounted on the outer wall of the locking tube. The mating hole 21 is set on the fixing ring 19. The spring rod 20 is mounted on the rotating block 18. The spring rod 20 extends into the mating hole 21 step by step, so that the rotating block 18 and the rotating frame 15 rotate stably step by step.

[0032] In this embodiment, the rotating frame 15 is limited and installed on the outer wall of the clamping tube, and the rotating blocks 18 are symmetrically installed at its top and bottom ends. Each rotating block 18 is equipped with a spring rod 20, which can be inserted into the mating hole 21 on the fixing ring 19 step by step, so that the rotating frame 15 can rotate step by step and stably, which is beneficial for precise adjustment of the locking position. The rotary push plate 16 and the rotary pressure plate 17 are installed on the rotating frame 15. The rotary push plate 16 pushes the extension frame away from the clamping groove 14 to unlock the mold. The rotary pressure plate 17 is rotated in the opposite direction and presses against the extension frame, so that it is stably inserted into the clamping groove 14 to complete the final mechanical locking.

[0033] Please see Figures 1-5 As a supplementary embodiment of an electrothermal extrusion device for a rolling conveying mechanism, a die clamping mechanism, and a clamping auxiliary mechanism: A support base 22 and a support frame 23 are installed at the top end of the platform 1, and the heated extrusion tube assembly 2 and the rolling box 3 are mounted on the support base 22 and the support frame 23. An extrusion shaft assembly 24 is rotatably installed inside the heated extrusion tube assembly 2, and an extrusion motor 25 is installed at one end of the extrusion shaft assembly 24. An adding hopper 26 is installed at the top end of the rolling box 3, and the material is added into the rolling box 3 through the adding hopper 26. An output pipe 27 is installed at one end of the heated extrusion tube assembly 2, and the output pipe 27 is connected to the forming assembly 9 through the die clamping mechanism. A connecting plate 28 is installed at one end of the clamping outer tube 10, and the connecting plate 28 is fixedly installed at one end of the output pipe 27. A sealing ring 29 is installed on the inner wall of the clamping outer tube 10, and the outer wall of the clamping inner tube 11 is pressed against the sealing ring 29.

[0034] More specifically, the raw material is fed into the crushing box 3 through the adding hopper 26, the drive motor 4 is started, and the crushing shaft 7 is driven to rotate, completing the crushing, preliminary plasticization and conveying of the material. Through the connecting hopper 8, the material is guided into the heated extrusion tube assembly 2. The extrusion shaft assembly 24 inside the heated extrusion tube assembly 2 further stirs, pushes and heats up, heating to a hot melt state. The molten material is extruded into the output pipe 27, and enters the forming assembly 9 through the mold clamping mechanism to complete the extrusion forming of the hot melt sleeve. During the production process, the clamping auxiliary mechanism ensures that the mold connection is firm and the rotation is accurate through the spinning and positioning device to prevent loosening during operation. The locking structure is removed from the slot 14 by the spinning push plate 16 to realize the safe disassembly and replacement of the mold.

[0035] In summary, during the use or operation of the overall equipment: when the crushing and conveying mechanism is in operation, the raw material is conveyed from the crushing box 3 to the heated extrusion tube assembly 2. The operator pours the material into the crushing box 3 through the adding hopper 26 at the top of the crushing box 3. The drive motor 4 transmits power to the transmission gears 6 through the transmission belt assembly 5. The two sets of meshing transmission gears 6 transmit power to the two crushing shafts 7, causing them to rotate relative to each other. The two crushing shafts 7 rotate at high speed and mesh with each other to stir and convey the incoming material. The material is sent from the bottom output end of the crushing box 3 into the connecting hopper 8 connected to one side. The connecting hopper 8 introduces the material into the heated extrusion tube assembly 2, preparing it for the next stage of heating, plasticizing, and molding.

[0036] When the mold clamping mechanism is in operation, it is used to connect or disassemble the extrusion molding component 9 to ensure stability and sealing during the extrusion molding process, and to facilitate the replacement of the molding component 9. One end of the clamping inner tube 11 is equipped with the molding component 9, and the other end is inserted into the clamping outer tube 10. The clamping outer tube 10 is fixedly installed at one end of the output tube 27 and is fixedly connected to the output tube 27 through the connecting plate 28 on it. The outer wall of the clamping inner tube 11 is provided with a groove 14 for cooperating with the locking structure. The locking spring 13 is located between the locking frame 12 and the clamping outer tube 10, providing elasticity. The elasticity pushes the locking frame 12 to slide laterally, so that it initially extends into the groove 14, realizing the initial positioning of the clamping inner tube 11. The inner wall of the clamping outer tube 10 is equipped with a sealing ring 29. After the clamping inner tube 11 is inserted, the outer wall presses against the sealing ring 29 to form a seal and prevent the leakage of molten material.

[0037] When the locking auxiliary mechanism is required to operate, the rotating frame 15 is limited and installed on the outer wall of the locking tube. The rotating blocks 18 are symmetrically installed at its top and bottom ends. Each rotating block 18 is equipped with a spring rod 20, which can be inserted into the mating hole 21 on the fixed ring 19 step by step, so that the rotating frame 15 can rotate step by step and stably, which is conducive to precise adjustment of the locking position. The rotary push plate 16 and the rotary pressure plate 17 are installed on the rotating frame 15. The rotary push plate 16 pushes the extension frame away from the locking groove 14 to unlock the mold. The rotary pressure plate 17 is rotated in the opposite direction and presses against the extension frame, so that it is stably inserted into the locking groove 14 to complete the final mechanical locking.

[0038] Raw materials are fed into the crushing box 3 through the adding hopper 26. The drive motor 4 starts and drives the crushing shaft 7 to rotate, completing the crushing, preliminary plasticization and conveying of the material. Through the connecting hopper 8, the material is guided into the heated extrusion tube assembly 2. The extrusion shaft assembly 24 inside the heated extrusion tube assembly 2 further stirs, pushes and heats up the material to a hot melt state. The molten material is extruded into the output pipe 27 and enters the forming assembly 9 through the mold clamping mechanism to complete the extrusion forming of the hot melt sleeve. During the production process, the clamping auxiliary mechanism ensures that the mold connection is firm and the rotation is accurate through the spinning and positioning device to prevent loosening during operation. The locking structure is removed from the slot 14 by the spinning push plate 16 to realize the safe disassembly and replacement of the mold.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electrothermal sleeve extrusion apparatus comprising a platform (1), a heated extrusion tube assembly (2), a roller conveyor mechanism, a die clamping mechanism and a clamping assist mechanism, characterised in that: The rolling conveying mechanism comprises a rolling box (3), a driving motor (4), a transmission belt assembly (5), transmission gears (6), rolling shafts (7) and a connecting hopper (8), two groups of rolling shafts (7) are rotatably installed in the rolling box (3), two groups of meshing transmission gears (6) are installed at one end of the rolling shafts (7), the transmission belt assembly (5) connects the transmission gears (6) and the driving motor (4), the connecting hopper (8) is installed at the top end of the side wall of the heating extrusion pipe assembly (2), the bottom end output end of the rolling box (3) is in communication with the connecting hopper (8), the mold clamping mechanism comprises a forming assembly (9), a clamping outer pipe (10), a clamping inner pipe (11), a locking frame (12), a locking spring (13), a clamping groove (14) and a rotating frame (15), the forming assembly (9) is installed at one end of the clamping inner pipe (11), the locking frame (12) is transversely and slidably installed on the outer wall of the clamping outer pipe (10), the rotating frame (15) is limitingly and rotatably installed on the outer wall of the clamping pipe, the clamping groove (14) is arranged on the outer wall of the clamping inner pipe (11), and the locking spring (13) is installed between the locking frame (12) and the clamping outer pipe (10).

2. An electrothermal sleeve extrusion apparatus according to claim 1, characterised in that: The clamping auxiliary mechanism comprises a rotating push plate (16), a rotating pressure plate (17), a rotating block (18), a fixed ring (19), a spring rod (20) and a matching hole (21), the rotating push plate (16) and the rotating pressure plate (17) are installed on the rotating frame (15), the rotating push plate (16) can push the extension frame away from the clamping groove (14) and rotate the rotating frame (15) in the opposite direction, the rotating pressure plate (17) is pressed towards the extension frame to stably extend into the clamping groove (14), the rotating block (18) is symmetrically installed at the top end and the bottom end of the rotating frame (15), the fixed ring (19) is fixedly installed on the outer wall of the clamping pipe, the matching hole (21) is arranged on the fixed ring (19), and the spring rod (20) is installed on the rotating block (18) and gradually extends into the matching hole (21).

3. An electrically heated die sleeve extrusion apparatus as defined in claim 1, wherein: The top end of the platform (1) is provided with a support seat (22) and a support frame (23), and the heating extrusion pipe assembly (2) and the rolling box (3) are rotatably arranged on the support seat (22) and the support frame (23).

4. An electrothermal sleeve extrusion apparatus according to claim 1, characterised in that: The inside of the heating extrusion pipe assembly (2) is rotatably provided with an extrusion shaft assembly (24), and one end of the extrusion shaft assembly (24) is provided with an extrusion motor (25).

5. An electrothermal sleeve extrusion apparatus according to claim 1, wherein: The top end of the rolling box (3) is provided with an adding hopper (26), and the material is added into the rolling box (3) through the adding hopper (26).

6. An electrothermal sleeve extrusion apparatus according to claim 1, characterised in that: One end of the heating extrusion pipe assembly (2) is provided with an output pipe (27), and the output pipe (27) and the forming assembly (9) are connected through the mold clamping mechanism.

7. An electrofusion sleeve extrusion apparatus according to claim 6, characterised in that: One end of the clamping outer pipe (10) is provided with a connecting plate (28), and the connecting plate (28) is fixedly installed at one end of the output pipe (27).

8. An electrothermal sleeve extrusion apparatus according to claim 1, characterized in that: A sealing ring (29) is installed on the inner wall of the clamping outer pipe (10), and the outer wall of the clamping inner pipe (11) is pressed towards the sealing ring (29).

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