Discharging end protection device of extruder
By designing a combination of protective plates and mounting plates at the extruder discharge end, the problems of collisions between the cooling tank and exposed cables and pipes, as well as coolant splashing, during the extruder production process are solved, thereby improving safety and ease of maintenance.
Patent Information
- Application Number
- CN202520636501.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-07
AI Technical Summary
During the cooling process of existing extruders, the cooling tank is prone to colliding with exposed pipes or wires under the die head, and the coolant can easily splash onto the wires, causing short circuits, which poses a high safety hazard.
Design an extruder discharge end protection device, including a protective plate and a detachably connected mounting plate. The protective plate covers the outer surface of the cooling tank to form a physical isolation barrier, preventing the cooling tank from scraping or hitting exposed cable pipes during movement, and preventing the lateral spread of droplets when the coolant splashes. At the same time, an extension plate and adjustment components are set to adapt to different working conditions, and a diversion channel and elastic airbag are provided to collect coolant and clean impurities.
It effectively reduces safety hazards during extruder production, ensures the integrity of cables and pipelines, prevents coolant splashing, improves worker safety and maintenance convenience, and extends the service life of the protective plate.
Smart Images
Figure CN223961703U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of extruder technology, and in particular to a protective device for the discharge end of an extruder. Background Technology
[0002] An extruder relies on the pressure and shearing force generated by the rotation of the screw to fully plasticize and uniformly mix the material, and finally extrude it into shape through the discharge end. The material is usually in a high temperature state after being extruded. In order to facilitate subsequent processing, a cooling tank is needed to cool the material after extrusion.
[0003] In existing technologies, when cooling materials, workers often push the cooling tank to the discharge end of the extruder for cooling. When the cooling tank is near the extruder head, because the height of the cooling tank is lower than that of the head, the cooling tank is very likely to collide with the exposed pipes or wires below the head during movement. At the same time, during the cooling process, the coolant can easily splash from the cooling tank onto the wires, causing a short circuit. Therefore, the extruder has high safety hazards and obvious shortcomings in the production process. Utility Model Content
[0004] In order to reduce safety hazards during extrusion production, this application provides a protective device for the discharge end of an extruder.
[0005] The extruder discharge end protection device provided in this application adopts the following technical solution:
[0006] An extruder discharge end protection device includes an extruder head, an installation plate is provided at the end of the extruder head, a protective plate is provided on the installation plate, the bottom surface of the protective plate is lower than the surface of the cooling tank, and when the protective plate abuts against the outer surface of the cooling tank, the protective plate blocks cables and pipelines.
[0007] By adopting the above technical solution, when the cooling tank moves to the discharge end of the extruder, the protective plate can completely cover the outer surface of the cooling tank, forming a physical isolation barrier, thereby preventing the cooling tank from scraping or hitting the exposed cable pipes on the moving path. At the same time, the contact state between the protective plate and the outer surface of the cooling tank forms a closed shielding area. When the coolant splashes, the protective plate prevents the splashing droplets from spreading laterally to the cable area, thereby reducing the safety hazards in the extruder production process.
[0008] Optionally, the protective plate can be detachably connected to the mounting plate by connecting bolts.
[0009] By adopting the above technical solution, the connection bolts enable a detachable connection between the protective plate and the mounting plate. This allows the protective plate to be quickly removed and replaced individually when it is deformed by collision, corroded, or contaminated, without having to stop the machine to disassemble the entire extruder head structure, thus improving the convenience of maintenance for workers.
[0010] Optionally, the end face of the protective plate facing the mounting plate is provided with a shock-absorbing pad, which is disposed at the connection between the protective plate and the mounting plate.
[0011] By adopting the above technical solution, the damping pad can effectively absorb the high-frequency vibration energy generated during the rotation of the extruder screw and the material extrusion process, reduce the vibration transmission to the protective plate, reduce the risk of the protective plate loosening or fatigue fracture, and extend the service life of the protective plate.
[0012] Optionally, the protective plate has a receiving groove inside, an extension plate is slidably connected in the receiving groove, and an adjustment component is provided in the receiving groove to drive the extension plate to move along the length direction of the receiving groove.
[0013] By adopting the above technical solution, when the size of the cooling tank or the cable layout changes, the worker can control the extension plate to move outward of the protective plate by adjusting the component. At this time, the overall length of the protective plate is extended by the extension plate, ensuring that the cable and exposed pipeline can be completely covered under different working conditions, thus ensuring the protective function of the protective plate.
[0014] Optionally, a drive groove is provided on the inner sidewall of the receiving groove, and the adjustment assembly includes an adjustment screw rotatably connected in the drive groove. An adjustment block that slides with the drive groove is threaded onto the adjustment screw. The adjustment block is disposed on the outer surface of the extension plate, and the end of the adjustment screw extends to the outer surface of the protective plate and is coaxially provided with a handwheel.
[0015] By adopting the above technical solution, when it is necessary to expand the coverage of the protective plate, the worker rotates the handwheel forward, and the handwheel drives the adjusting screw to rotate. Under the limitation of the cross section of the adjusting block and the drive groove, the rotation of the adjusting screw will drive the adjusting block to move outward along the length direction of the drive groove. The extension plate extends outward, thereby increasing the overall protection range of the protective plate.
[0016] Optionally, the protective plate has multiple drainage grooves evenly spaced on the surface opposite to the mounting plate, and slots are provided on opposite sides of the bottom surface of the protective plate. A collection box is slidably connected inside the slot, and the collection box has through holes communicating with the multiple drainage grooves.
[0017] By adopting the above technical solution, when the coolant in the cooling tank splashes onto the outer surface of the protective plate, the diversion channel can guide the coolant on the surface of the protective plate into the interior of the cooling tank. At this time, the coolant enters the collection box through the through hole along the diversion channel, thereby realizing the centralized recycling and reuse of the coolant. At the same time, it avoids the formation of a slippery area on the ground due to the splashing of coolant, ensuring the safety of workers.
[0018] Optionally, the protective plate surface is provided with elastic airbags corresponding to the plurality of drainage channels one by one. The elastic airbags are filled with gas, and the outlet end of each elastic airbag is connected to a corrugated pipe. The outlet end of the corrugated pipe is closed. A placement groove is opened on the inner sidewall of each drainage channel. The corrugated section of the corrugated pipe is located inside the placement groove. The closed end of the corrugated pipe is provided with a cleaning block that slides with the placement groove. The end of the cleaning block extends into the drainage channel, and the cleaning surface of the cleaning block abuts against the inner sidewall of the drainage channel.
[0019] By adopting the above technical solution, as the cooling tank approaches the protective plate, the cooling tank compresses the elastic airbag. The gas in the elastic airbag flows into the bellows, which inflates and extends continuously within the placement tank. During this extension, it pushes the cleaning block to clean the deposits on the inner wall of the drainage channel, preventing impurities or residues in the coolant from accumulating and clogging the drainage channel. This ensures smooth liquid flow in the drainage channel. At the same time, the elastic airbag, made of elastic material, provides elastic cushioning for the surface of the protective plate, reducing physical damage caused by collisions between the protective plate and the outer surface of the cooling tank.
[0020] In summary, this application includes at least one of the following beneficial technical effects:
[0021] 1. In this embodiment of the application, by setting a protective plate, when the cooling tank moves to the discharge end of the extruder, the protective plate can completely cover the outer surface of the cooling tank, forming a physical isolation barrier, thereby preventing the cooling tank from scraping or hitting the exposed cable pipes on the moving path. At the same time, the contact state between the protective plate and the outer surface of the cooling tank forms a closed shielding area. When the coolant splashes, the protective plate prevents the splashing droplets from spreading laterally to the cable area, thereby reducing the safety hazards in the extruder production process.
[0022] 2. By setting up an extension plate and an adjustment component, when the size of the cooling tank or the cable layout changes, the worker can control the extension plate to move outwards from the protective plate through the adjustment component. At this time, the overall length of the protective plate is extended by the extension plate, ensuring that the cable and exposed pipeline can be completely covered under different working conditions, thus ensuring the protective function of the protective plate. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of this application.
[0024] Figure 2 This is an exploded view of the protective plate and the collection box in an embodiment of this application.
[0025] Figure 3 This is a cross-sectional view of the receiving tank in an embodiment of this application.
[0026] Figure 4This is a cross-sectional view of the placement groove in an embodiment of this application.
[0027] Explanation of reference numerals in the attached drawings: 01, Extruder head; 1, Mounting plate; 2, Protective plate; 21, Shock-absorbing pad; 3, Connecting bolt; 4, Receiving groove; 41, Drive groove; 5, Extension plate; 6, Adjustment assembly; 61, Adjustment screw; 62, Adjustment block; 63, Handwheel; 7, Drainage groove; 71, Placement groove; 8, Slot; 9, Collection box; 91, Through hole; 10, Elastic air bladder; 11, Corrugated pipe; 12, Cleaning block. Detailed Implementation
[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0029] This application discloses a protective device for the discharge end of an extruder.
[0030] Reference Figure 1 An extruder discharge end protection device includes an extruder head 01, with a mounting plate 1 fixedly connected to the bottom surface of the extruder head 01. A protective plate 2 is detachably connected to the mounting plate 1 via connecting bolts 3. The height of the bottom surface of the protective plate 2 is lower than the height of the cooling tank surface. When the protective plate 2 abuts against the outer surface of the cooling tank, the protective plate 2 blocks the pipelines and cables. When the cooling tank moves to the extruder discharge end, the protective plate 2 covers the outer surface of the cooling tank, forming a physical isolation barrier to prevent the cooling tank from scraping or hitting the exposed cable pipelines on the moving path. At the same time, the contact state between the protective plate 2 and the outer surface of the cooling tank forms a closed shielding area. When coolant splashes, the protective plate 2 prevents the splashed droplets from spreading laterally to the cable area, thereby reducing safety hazards in the extruder production process.
[0031] Reference Figure 1 A shock-absorbing pad 21 is fixedly connected to the end face of the anti-slip plate facing the mounting plate 1. In this embodiment, the shock-absorbing pad 21 is made of rubber. The shock-absorbing pad 21 is set at the connection between the protective plate 2 and the mounting plate 1. The end of the connecting bolt 3 passes through the mounting plate 1 and the shock-absorbing pad 21 and is threaded onto the protective plate 2. The shock-absorbing pad 21 effectively absorbs the vibration energy during the operation of the extruder and reduces the vibration transmitted to the protective plate 2.
[0032] Reference Figure 2 and Figure 3The protective plate 2 has a receiving groove 4 opened in the horizontal direction. An extension plate 5 is slidably connected inside the receiving groove 4. A driving groove 41 is opened in the length direction on the inner side wall of the receiving groove 4. An adjustment component 6 is provided inside the driving groove 41. Specifically, the adjustment component 6 includes an adjustment screw 61 rotatably connected inside the driving groove 41. An adjustment block 62 is threadedly connected to the adjustment screw 61. The cross-section of the adjustment block 62 and the driving groove 41 are both square. The adjustment block 62 is slidably connected inside the driving groove 41. The adjustment block 62 is fixedly connected to the end of the extension plate 5 near the driving groove 41. The end of the adjustment screw 61 extends to the outer surface of the protective plate 2 and is coaxially fixedly connected to a handwheel 63.
[0033] When the area of the protective plate 2 is insufficient to cover the side wall of the cooling tank or exposed cables and pipes, the worker rotates the handwheel 63 forward. The handwheel 63 drives the adjusting screw 61 to rotate. Under the constraint of the adjusting block 62 and the cross-section of the drive groove 41, the rotation of the adjusting screw 61 will drive the adjusting block 62 to move outward along the length of the drive groove 41. The extension plate 5 extends, increasing the overall protection range of the protective plate 2, ensuring that the cables and exposed pipes can be completely covered under different working conditions, thus guaranteeing the protective function of the protective plate 2. When the extension plate 5 is not needed, the worker rotates the handwheel 63 in the opposite direction. The handwheel 63 drives the adjusting screw 61 to rotate in the opposite direction, thereby allowing the extension plate 5 to enter the receiving groove 4, realizing the storage of the extension plate 5.
[0034] Reference Figure 2 and Figure 4 The protective plate 2 has multiple drainage grooves 7 evenly spaced away from the mounting plate 1. In this embodiment, there are five drainage grooves 7. The length direction of the drainage grooves 7 is perpendicular to the length direction of the adjusting screw 61. Slots 8 are provided on both sides of the bottom surface of the protective plate 2. A collection box 9 is slidably connected inside the slot 8. A through hole 91 communicating with the groove opening of the drainage groove 7 is provided on the surface of the collection box 9.
[0035] When coolant splashes onto the outer surface of the protective plate 2, the diversion channel 7 guides the coolant on the surface of the protective plate 2 into the cooling tank. At this time, the coolant enters the collection box 9 through the through hole 91 along the diversion channel 7, thereby realizing the centralized recycling and reuse of coolant and avoiding the formation of a slippery area on the ground due to coolant splashing. When the coolant inside the collection box 9 is saturated, the worker replaces the collection box 9 by using the sliding fit between the slot 8 and the collection box 9.
[0036] Reference Figure 2 and Figure 4The protective plate 2 has elastic airbags 10 fixedly connected to the surface of the multiple drainage channels 7, each corresponding to one of them. The elastic airbags 10 are filled with gas. In this embodiment, the elastic airbags 10 are made of rubber. Each elastic airbag 10 is fixedly connected to a corrugated tube 11. The air inlet end of the corrugated tube 11 is connected to the elastic airbag 10, and the air outlet end is closed. Each drainage channel 7 has a placement groove 71 on its inner sidewall. The placement groove 71 is vertically arranged. The corrugated section of the corrugated tube 11 extends into the placement groove 71. The closed end of the corrugated tube 11 is provided with a cleaning block 12 that slides with the placement groove 71. The end of the cleaning block 12 extends into the drainage channel 7, and the cleaning surface of the cleaning block 12 abuts against the inner sidewall of the drainage channel 7.
[0037] As the cooling tank approaches the protective plate 2, the cooling tank first compresses the elastic airbag 10. The volume of the elastic airbag 10 decreases under pressure, and the gas in the elastic airbag 10 flows into the bellows 11. The bellows 11 inflates and expands, continuously extending within the placement groove 71. During the extension process, it pushes the cleaning block 12 toward the collection box 9. At this time, the cleaning surface of the cleaning block 12 cleans the deposits on the inner wall of the drainage groove 7, thus preventing the accumulation of impurities or residues in the coolant and causing blockage of the drainage groove 7, ensuring smooth flow of liquid in the drainage groove 7. At the same time, the elastic airbag 10, made of elastic material, provides elastic buffer for the surface of the protective plate 2, reducing the physical damage caused by the collision between the protective plate 2 and the outer surface of the cooling tank.
[0038] When the cooling tank moves away from the protective plate 2, the pressure of the cooling tank on the elastic airbag 10 disappears. The elastic airbag 10 resets and recovers its deformation under its own elastic force. The air pressure in the elastic airbag 10 decreases. The gas inside the bellows 11 moves towards the elastic airbag 10 under the push of the air pressure. The bellows 11 loses air and contracts, causing the cleaning block 12 to move away from the collection box 9, thereby realizing the reset of the cleaning block 12.
[0039] The implementation principle of the extruder discharge end protection device in this application embodiment is as follows: when the cooling tank moves to the extruder discharge end, the protective plate 2 covers the outer surface of the cooling tank, forming a physical isolation barrier to prevent the cooling tank from scraping or hitting the exposed cable pipes on the moving path. At the same time, the contact state between the protective plate 2 and the outer surface of the cooling tank forms a closed shielding area. When the coolant splashes, the protective plate 2 prevents the splashed droplets from spreading laterally to the cable area, thereby reducing the safety hazards in the extruder production process.
[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A discharge end protection device for an extruder, comprising an extruder head (01), characterized in that, The extruder head (01) is provided with an installation plate (1) at its end. A protective plate (2) is provided on the installation plate (1). The bottom surface of the protective plate (2) is lower than the surface of the cooling tank. When the protective plate (2) abuts against the outer surface of the cooling tank, the protective plate (2) blocks the cables and pipelines.
2. The extruder discharge end protection device according to claim 1, characterized in that, The protective plate (2) is detachably connected to the mounting plate (1) by connecting bolts (3).
3. The discharge end protection device for an extruder according to claim 1, characterized in that, The protective plate (2) is provided with a shock-absorbing pad (21) on the end face facing the mounting plate (1), and the shock-absorbing pad (21) is provided at the connection between the protective plate (2) and the mounting plate (1).
4. The discharge end protection device for an extruder according to claim 1, characterized in that, The protective plate (2) has a receiving groove (4) inside, and an extension plate (5) is slidably connected in the receiving groove (4). An adjustment component (6) is provided in the receiving groove (4) to drive the extension plate (5) to move along the length direction of the receiving groove (4).
5. The discharge end protection device for an extruder according to claim 4, characterized in that, A drive groove (41) is provided on the inner side wall of the receiving groove (4). The adjustment assembly (6) includes an adjustment screw (61) rotatably connected in the drive groove (41). An adjustment block (62) that slides with the drive groove (41) is threaded onto the adjustment screw (61). The adjustment block (62) is disposed on the outer surface of the extension plate (5). The end of the adjustment screw (61) extends to the outer surface of the protective plate (2) and is coaxially provided with a handwheel (63).
6. The discharge end protection device for an extruder according to claim 1, characterized in that, The protective plate (2) has multiple drainage grooves (7) evenly spaced on the surface away from the mounting plate (1). The bottom surface of the protective plate (2) has slots (8) on opposite sides. A collection box (9) is slidably connected inside the slot (8). The collection box (9) has through holes (91) that communicate with the multiple drainage grooves (7).
7. The discharge end protection device for an extruder according to claim 6, characterized in that, The protective plate (2) is provided with elastic airbags (10) corresponding to the multiple drainage grooves (7) one by one. The elastic airbags (10) are filled with gas. The air outlet of each elastic airbag (10) is connected to a corrugated pipe (11). The air outlet of the corrugated pipe (11) is closed. Each drainage groove (7) has a placement groove (71) on its inner sidewall. The corrugated section of the corrugated pipe (11) is located inside the placement groove (71). The closed end of the corrugated pipe (11) is provided with a cleaning block (12) that slides with the placement groove (71). The end of the cleaning block (12) extends into the drainage groove (7). The cleaning surface of the cleaning block (12) abuts against the inner sidewall of the drainage groove (7).