Hot melting type extrusion device

Abstract

The invention relates to the technical field of melt extrusion devices, and discloses a hot melting type extrusion device which comprises a machine body and an extrusion plate, and a moving plate is slidably mounted at the top of the machine body through a moving assembly. In the using process, when the inner walls of the discharging barrel shell and the feeding barrel shell need to be cleaned, clamping connection between the extrusion screw and the power source is released through the moving plate, then the driving motor drives the first lifting plate and the second lifting plate to ascend, extrusion of the extrusion plate on the multiple feeding barrel shells is released, the feeding barrel shells can be detached, and the inner walls of the feeding barrel shells and the extrusion screw are cleaned. And then the feeding barrel shell is reset, the extrusion bolt and the feeding barrel shell are fixed through the fixing bolt and the mounting plate, meanwhile, fixation with the discharging barrel shell is removed, the feeding barrel shell is turned over again to clean the inner wall of the discharging barrel shell, and through the arrangement, mounting and dismounting convenience is improved, and mounting and follow-up cleaning are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of melt extrusion devices, and more particularly to a hot melt extrusion device. Background Art

[0002] Rapid prototyping technology is an emerging advanced manufacturing technology in the late 1980s. It is a prototype manufacturing technology based on the idea of ​​discrete stacking. At present, there are more than 10 rapid prototyping process technologies, the most typical of which are stereolithography (SL), layer-by-layer manufacturing (LOM), selective laser sintering (SLS) and fused deposition modeling (FDM).

[0003] Traditional hot-melt material extruders integrate a drive unit or pump, a heating device, and an extrusion head into a fixed structure. While relatively simple, these devices can retain residual material after prolonged use. If not cleaned promptly, these residual materials can solidify and deteriorate, affecting subsequent use. Furthermore, due to the device's complex internal structure, installation and disassembly are time-consuming, and blind spots in the screw and barrel create significant cleaning challenges. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a hot melt extrusion device to solve the problems existing in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a hot melt extrusion device, comprising a body and an extrusion plate, a movable plate is slidably installed on the top of the body through a moving assembly, a plurality of lower barrel shells are movably installed on the top of the movable plate, a plurality of upper barrel shells are detachably connected above the lower barrel shells, the lower barrel shells and the upper barrel shells are combined into a barrel shell, the extrusion plate is located on the upper side of the upper barrel shell, each adjacent two upper barrel shells are connected by a plug-in assembly, a first lifting plate and a second lifting plate are installed on the movable plate through a lifting assembly, wherein the first lifting plate and the second lifting plate are respectively arranged On both sides of the barrel shell, the first lifting plate and the second lifting plate correspond one to one, the top of each first lifting plate is a semi-cylindrical shape with a convex middle part, and connecting grooves are provided on both sides of the extrusion plate. The upper end of the first lifting plate slides into the corresponding connecting groove, and the top of each first lifting plate is coaxially installed with a mounting shaft, both ends of the mounting shaft extend out of the first lifting plate and are rotatably connected to the extrusion plate, and the top of each second lifting plate slides into the connecting groove on the corresponding side, and a locking assembly is provided between each second lifting plate and the extrusion plate. An extrusion assembly is provided in the barrel shell, and the extrusion assembly is detachably connected to the power source.

[0006] Furthermore, the moving assembly includes two screw rods, a moving groove is opened on the top of the body, and there are two moving grooves arranged on both sides of the moving plate. A screw rod is rotatably installed in each moving groove, and a rectangular slider is slidably installed in each moving groove. The rectangular slider is threadedly connected to the screw rod on the corresponding side, and each rectangular slider is fixedly connected to the moving plate. A synchronous pulley is coaxially fixed on each screw rod, and the two synchronous pulleys are connected by a synchronous belt. A moving motor is installed on one side of the body, and the output shaft of the moving motor is connected to any one of the screw rods and drives it to rotate.

[0007] Furthermore, the plug-in assembly includes a plug-in rod, and in each of two adjacent loading barrel shells, a telescopic hole is opened on the side of one of the loading barrel shells, and a first limiting shaft is fixedly installed on the inner wall of the end of the telescopic hole. One end of the plug-in rod extends into the telescopic hole and is slidably sleeved on the outside of the first limiting shaft. A first compression spring is provided on the outer sleeve of the first limiting shaft, and an operating hole is opened on the side of the telescopic hole. An operating unit is provided in the operating hole. A plug-in hole is opened on the side of the other loading barrel shell, and the other end of the plug-in rod extends into the plug-in hole.

[0008] Furthermore, the operating unit includes an operating block, which is movably arranged in the operating hole and fixedly connected to the plug-in rod. A limiting groove is provided at the bottom of the operating hole, and a second limiting shaft is fixedly installed on the bottom inner wall of the limiting groove. A first trapezoidal clamping block is slidably installed on the second limiting shaft, and a second compression spring is provided on the outer sleeve of the second limiting shaft.

[0009] Furthermore, the lifting assembly includes two rotating shafts, a transmission groove is provided on the movable plate, a rotating shaft is rotatably installed in each transmission groove, a linkage shaft is rotatably installed on the movable plate, a second bevel gear is provided at both ends of the linkage shaft, a first bevel gear is provided on each rotating shaft, the first bevel gear is meshed with the second bevel gear, a driving motor is installed on the side of the movable plate, and the output shaft of the driving motor is connected to any one of the rotating shafts.

[0010] Furthermore, the lifting assembly also includes a plurality of gears, and the plurality of gears are respectively fixedly sleeved on the two rotating shafts. The sides of the plurality of first lifting plates and the plurality of second lifting plates that are away from each other are fixedly installed with a first straight rack and a second straight rack, and each first straight rack and second straight rack is respectively engaged with the corresponding gear.

[0011] Furthermore, the locking assembly includes a second trapezoidal block, a rectangular groove is provided on the side of the second lifting plate, one end of the second trapezoidal block is slidably arranged in the rectangular groove, a circular hole is provided on the inner wall of the side of the rectangular groove, a guide shaft is slidably installed in the circular hole, one end of the guide shaft is fixedly connected to the side of the second trapezoidal block, and a pull ring is rotatably installed on the other end of the guide shaft, and a clamping spring is provided on the outer sleeve of the guide shaft, and two U-shaped plates are fixedly installed on the other side of the second lifting plate, and the two U-shaped plates are symmetrically arranged on the upper and lower sides of the corresponding pull rings, and the side of the extrusion plate is provided with a plurality of slots that cooperate with the second trapezoidal block.

[0012] Furthermore, the extrusion assembly includes a mounting plate and two extrusion screws. The mounting plate is fixedly connected to the lower barrel shell and the upper barrel shell by fixing bolts. The two extrusion screws are rotatably arranged in the barrel shell. The ends of the extrusion screws can be rotatably passed through the mounting plate and extended out. The ends of the two extrusion screws are both provided with regular polygonal linkage holes.

[0013] Furthermore, two rectangular clips are fixedly installed on the bottom of the extrusion plate, and two extrusion grooves are opened on the top of the multiple upper barrel shells. The two rectangular clips are respectively adapted to the multiple extrusion grooves. Four pins are fixedly installed on the bottom of the multiple lower barrel shells, and multiple pin grooves are opened on the top of the movable plate. The multiple pins are respectively adapted to the multiple pin grooves.

[0014] Furthermore, the extrusion plate and the tops of the multiple feeding barrel shells are each provided with a feeding hole, and sealing blocks can be detachably installed in each of the multiple feeding holes.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the setting of the plug-in rod and the plug-in hole, the connection function between the two loading barrel shells can be realized, which is convenient for driving the other loading barrel shells to flip synchronously when opening one of the loading barrel shells, thereby synchronously opening multiple loading barrel shells. By driving the plug-in rod to move horizontally through the operating unit, the clamping between the multiple loading barrel shells can be released, which is convenient for opening one of the loading barrel shells separately, so that maintenance personnel can more conveniently disassemble and replace specific parts.

[0016] 2. Through the synchronous reverse rotation of the two rotating shafts, the multiple gears located on the two rotating shafts can be driven to rotate synchronously in the opposite direction. Through the meshing action with the first spur rack and the second spur rack, the multiple first lifting plates and the multiple second lifting plates can be driven to realize the lifting and lowering function synchronously, which is convenient for driving the extrusion plate to move up and down synchronously and extrude and fix the shell of the loading barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of this embodiment; Figure 2 This is an enlarged structural diagram of the lower barrel housing and the upper barrel housing in this embodiment; Figure 3 This is a schematic diagram of the partial cross-section structure of the lower barrel shell and the upper barrel shell extrusion plate in this embodiment; Figure 4 for Figure 3 A in the middle is an enlarged structural diagram; Figure 5 This is a schematic diagram of a partial cross-section structure of the machine body in this embodiment; Figure 6 for Figure 5 The enlarged structural diagram at B in the middle; Figure 7 This is a schematic diagram of the partial cross-section structure of the top of the movable plate in this embodiment; Figure 8 for Figure 7 The enlarged structural diagram at C in the middle; Figure 9 This is a partial cross-sectional structural diagram of the extrusion plate, upper barrel housing, lower barrel housing, first lifting plate, and second lifting plate in this embodiment; Figure 10 for Figure 9 The enlarged structural diagram at D in the middle; Figure 11 This is a partial cross-sectional structural diagram of the extrusion plate, rectangular clamping strip, upper barrel housing, lower barrel housing, and mounting plate in this embodiment; Figure 12 This is a schematic diagram of the partial cross-section structure of the side of the movable plate in this embodiment.

[0018] The accompanying drawings are marked as follows: 1. body; 2. lower barrel housing; 3. upper barrel housing; 4. movable plate; 5. extrusion plate; 6. connecting plate; 7. telescopic hole; 8. plug-in rod; 9. first limiting shaft; 10. first compression spring; 11. operating hole; 12. operating block; 13. first trapezoidal block; 14. second limiting shaft; 15. second compression spring; 16. rectangular slider; 17. first transmission chamber; 18. screw rod; 19. synchronous pulley; 20. synchronous belt; 21. movable motor; 22. first lifting plate; 23. gear; 24. transmission groove ; 25. Second transmission chamber; 26. Rotating shaft; 27. First bevel gear; 28. Second bevel gear; 29. ​​Driving motor; 30. First straight rack; 31. Mounting shaft; 32. Second lifting plate; 33. Second straight rack; 34. Second trapezoidal clamping block; 35. Guide shaft; 36. Pull ring; 37. U-shaped plate; 38. Clamping spring; 39. Clamping groove; 40. Rectangular clamping strip; 41. Mounting plate; 42. Fixing bolt; 43. Extrusion screw; 44. Feed hole; 45. Sealing block; 46. Pin; 47. Bearing seat; 48. Linkage shaft. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation. The structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement solutions or common means, they will not be described in detail herein, but they still fall within the scope of protection of this application.

[0020] Figures 1-12 The best embodiment of the present invention is shown below in conjunction with the attached Figures 1-12 The present invention is further described.

[0021] Refer to the attached Figures 1-12 , the hot melt extrusion device includes a body 1, an extrusion plate 5, and specifically, a power source and a display screen. The power source and the display screen are all existing technologies. The power source and the display screen are all arranged on the body 1. The top of the body 1 is slidably installed with a moving plate 4 through a moving component. A plurality of lower barrel shells 2 are movably installed on the top of the moving plate 4. The upper barrel shells 3 are detachably connected to the upper barrel shells 3 above the multiple lower barrel shells 2 through a connecting plate 6. The upper barrel shell 3 and the lower barrel shell 2 are combined into a complete barrel shell. The extrusion plate 5 is located on the upper side of the upper barrel shell 3. Each adjacent two upper barrel shells 3 are connected by a plug-in component. The first lifting plate 22 and the second lifting plate 32 are installed on the moving plate 4 through a lifting component, wherein the first lifting plate 22 and the second lifting plate 32 are installed The lowering plate 22 and the second lifting plate 32 are respectively arranged on both sides of the barrel housing, and the first lifting plate 22 and the second lifting plate 32 correspond one to one. The top of each first lifting plate 22 is a semi-cylindrical shape with a convex middle part. Connecting grooves are provided on both sides of the extrusion plate 5. The upper end of the first lifting plate 22 slides into the corresponding connecting groove. The top of each first lifting plate 22 is coaxially installed with a mounting shaft 31. Both ends of the mounting shaft 31 extend out of the first lifting plate 22 and are rotatably connected to the extrusion plate 5. The top of each second lifting plate 32 slides into the connecting groove on the corresponding side. A locking assembly is provided between each second lifting plate 32 and the extrusion plate 5. An extrusion assembly is provided in the barrel housing, and the extrusion assembly is detachably connected to the power source. The moving assembly drives the moving plate 4 to move, thereby connecting or disconnecting the extrusion assembly to the power source.

[0022] Specifically, the lower side of the connecting plate 6 is detachably connected to the lower barrel housing 2 by connecting bolts, and the upper side of the connecting plate 6 is detachably connected to the upper barrel housing 3 by connecting bolts, thereby connecting the paired lower barrel housing 2 and upper barrel housing 3 into one. Since the upper barrel housing 3 is compressed by the extrusion plate 5, it is only necessary to set the connecting plate 6 on one side. Of course, the connecting plate 6 can also be set on both sides. When it is necessary to clean the upper barrel housing 3 or the lower barrel housing 2, the connecting bolts can be removed.

[0023] like Figure 5 and Figure 6 As shown, the moving assembly includes two screw rods 18, a moving groove is provided on the top of the body 1, and there are two moving grooves arranged on both sides of the moving plate 4. A first transmission cavity 17 is provided on the body 1, and the first transmission cavity 17 is provided at one end of the moving plate 4 and is respectively connected to the two moving grooves. A screw rod 18 is rotatably installed in each moving groove, and a rectangular slider 16 is slidably installed in each moving groove. The rectangular slider 16 is threadedly connected to the screw rod 18 on the corresponding side, and each rectangular slider 16 is fixedly connected to the moving plate 4. A synchronous pulley 19 is coaxially fixed on each screw rod 18, and the two synchronous pulleys 19 are connected by a synchronous belt 20 passing through the first transmission cavity 17. A moving motor 21 is installed on one side of the body 1, and the output shaft of the moving motor 21 is connected to any one of the screw rods 18 and drives it to rotate.

[0024] In this embodiment, the mobile motor 21 drives one of the screw rods 18, and then drives the other screw rod 18 to rotate synchronously through the synchronous belt 20. Through the threaded action of the screw rod 18 and the rectangular slider 16, the rectangular slider 16 is driven to move horizontally in the slide groove, thereby driving the lower barrel shell 2, the upper barrel shell 3, and the extrusion assembly to move synchronously horizontally, thereby releasing the connection between the extrusion assembly and the power source.

[0025] like Figure 3 and Figure 4 As shown, the plug-in assembly includes a plug-in rod 8. In each of two adjacent loading barrel shells 3, a telescopic hole 7 is opened on the side of one of the loading barrel shells 3, and a first limiting shaft 9 is fixedly installed in the telescopic hole 7. One end of the plug-in rod 8 extends into the telescopic hole 7 and is slidably sleeved on the outside of the first limiting shaft 9. A first compression spring 10 is provided on the outer cover of the first limiting shaft 9. An operating hole 11 is opened on the side of the telescopic hole 7. The operating hole 11 is a long hole arranged along the first limiting shaft 9. An operating unit is arranged in the operating hole 11. A plug-in hole is opened on the side of the other loading barrel shell 3, and the other end of the plug-in rod 8 extends into the plug-in hole.

[0026] In this embodiment, the connection between two adjacent loading barrel shells 3 can be achieved through the setting of the plug-in rod 8 and the plug-in hole, which makes it convenient to drive the other loading barrel shells 3 to flip synchronously when opening one of the loading barrel shells 3, thereby synchronously opening multiple loading barrel shells 3. By driving the plug-in rod 8 to move horizontally through the operating unit, the clamping between adjacent loading barrel shells 3 can be released, which makes it convenient to open one of the loading barrel shells 3 separately, so that maintenance personnel can more conveniently disassemble and replace specific components.

[0027] like Figure 4As shown, the operating unit includes an operating block 12, which is movably arranged in the operating hole 11 and fixedly connected to the plug-in rod 8. A limiting groove is provided at the bottom of the operating hole 11, and a second limiting shaft 14 is fixedly installed on the bottom inner wall of the limiting groove. A first trapezoidal block 13 is slidably installed on the second limiting shaft 14, and a second compression spring 15 is provided on the outer sleeve of the second limiting shaft 14.

[0028] In this embodiment, through the setting of the first trapezoidal block 13, the operating block 12 can squeeze the inclined portion of the first trapezoidal block 13 and shrink it into the limiting groove after sliding and contacting the first trapezoidal block 13. When the operating block 12 continues to move and separates from the first trapezoidal block 13, the second compression spring 15 pushes the first trapezoidal block 13 to reset, thereby limiting the operating block 12 and preventing the operating block 12 from driving the plug-in rod 8 to realize the reset function under the action of the first compression spring 10, thereby making it more convenient to install the loading barrel shell 3.

[0029] like Figure 7 and Figure 8 As shown, the lifting assembly includes two rotating shafts 26, a transmission groove 24 is provided on the movable plate 4, and a second transmission cavity 25 is provided at one end of the movable plate 4. Both second transmission grooves 24 are connected to the second transmission cavity 25. A rotating shaft 26 is rotatably installed in each transmission groove 24, and the end of each rotating shaft 26 extends into the second transmission cavity 25. A linkage shaft 48 is rotatably installed in the second transmission cavity 25 through a bearing seat 47. The linkage shaft 48 is provided with a second bevel gear 28 at both ends, and each rotating shaft 26 is provided with a first bevel gear 27, which meshes with the second bevel gear 28. A drive motor 29 is installed on the side of the movable plate 4, and the output shaft of the drive motor 29 is connected to any one of the rotating shafts 26.

[0030] In this embodiment, the driving motor 29 drives one of the rotating shafts 26, which in turn drives the other rotating shaft 26 to rotate in the opposite direction through the linkage shaft 48. By adjusting the relative position of the first bevel gear 27 and the corresponding second bevel gear 28, the rotation direction of the two rotating shafts 26 can be controlled, which belongs to the prior art.

[0031] like Figure 8 As shown, the lifting assembly also includes a plurality of gears 23, and the plurality of gears 23 are respectively fixedly sleeved on the two rotating shafts 26. The sides of the plurality of first lifting plates 22 and the plurality of second lifting plates 32 that are away from each other are fixedly installed with a first straight rack 30 and a second straight rack 33, and each first straight rack 30 and second straight rack 33 is respectively engaged with the corresponding gear 23.

[0032] In this embodiment, the synchronous reverse rotation of the two rotating shafts 26 can drive the synchronous reverse rotation of multiple gears 23 located on the two rotating shafts 26. Through the meshing action with the first straight rack 30 and the second straight rack 33, it can drive multiple first lifting plates 22 and multiple second lifting plates 32 to synchronously realize the lifting and lowering function, which is convenient for driving the extrusion plate 5 to synchronously lift and lower, and extrude and fix the loading barrel shell 3.

[0033] like Figure 9 and Figure 10 As shown, the locking assembly includes a second trapezoidal block 34, a rectangular groove is provided on the side of the second lifting plate 32, one end of the second trapezoidal block 34 is slidably set in the rectangular groove, a circular hole is provided on the inner wall of the side of the rectangular groove, a guide shaft 35 is slidably installed in the circular hole, one end of the guide shaft 35 is fixedly connected to the second trapezoidal block 34, and a pull ring 36 is rotatably installed on the other end of the guide shaft 35. A clamping spring 38 is provided on the outer sleeve of the guide shaft 35, and two U-shaped plates 37 are fixedly installed on the other side of the second lifting plate 32. The two U-shaped plates 37 are symmetrically arranged on the upper and lower sides of the corresponding pull ring 36, and a plurality of slots 39 that cooperate with the second trapezoidal block 34 are provided on the side of the extrusion plate 5.

[0034] In this embodiment, in the initial state, the pull ring 36 is located between the two U-shaped plates 37. When the extrusion plate 5 moves downward, the extrusion plate 5 squeezes the inclined portion of the second trapezoidal block 34, causing the second trapezoidal block 34 to shrink into the rectangular groove. The extrusion plate 5 continues to move. When the groove 39 is aligned with the rectangular groove, the clamping spring 38 pushes the second trapezoidal block 34, causing one end of the second trapezoidal block 34 to extend into the groove 39, thereby locking the extrusion plate 5. When contact locking is required, the pull ring 36 is pulled outward until the pull ring 36 moves out from between the two U-shaped plates 37, and then the pull ring 36 is rotated and the two ends of the pull ring 36 are aligned with the U-shaped plates 37 respectively. After releasing the pull ring 36, the two U-shaped plates 37 limit the second trapezoidal block 34 through the pull ring 36, thereby maintaining the unlocked state of the extrusion plate 5.

[0035] like Figure 11 As shown, the extrusion assembly includes a mounting plate 41 and two extrusion screws 43. The mounting plate 41 is fixedly connected to the lower barrel shell 2 and the upper barrel shell 3 by fixing bolts 42. The two extrusion screws 43 are rotatably arranged in the barrel shell. The ends of the extrusion screws 43 can be rotatably passed through the mounting plate 41 and extended out. The ends of the two extrusion screws 43 are both provided with regular polygonal linkage holes.

[0036] In this embodiment, the mounting plate 41 is installed by using a plurality of fixing bolts 42, so that the connection function between the mounting plate 41 and the lower barrel shell 2 and the upper barrel shell 3 can be realized, thereby installing the extrusion screw 43. By removing and installing the fixing bolts 42 at different positions, the mounting plate 41 can be connected to the lower barrel shell 2 and the upper barrel shell 3 respectively, thereby facilitating the cleaning of the inner walls of the lower barrel shell 2 and the upper barrel shell 3 respectively.

[0037] like Figure 10 and Figure 12 As shown, two rectangular clips 40 are fixedly installed on the bottom of the extrusion plate 5, and two extrusion grooves are opened on the top of the multiple upper barrel shells 3. The two rectangular clips 40 are respectively adapted to the multiple extrusion grooves and extend into the corresponding extrusion grooves. Four pins 46 are fixedly installed on the bottom of the multiple lower barrel shells 2, and multiple pin grooves are opened on the top of the movable plate 4. The multiple pins 46 are respectively adapted to the multiple pin grooves and extend into the corresponding pin grooves.

[0038] In this embodiment, by setting two rectangular clamping strips 40 and two extrusion grooves, the extrusion plate 5 can achieve lateral limitation of the upper barrel shell 3 when moving downward through the engagement between the rectangular clamping strips 40 and the extrusion grooves, and by setting the pin 46 and the pin groove, it can play a positioning function when installing the lower barrel shell 2.

[0039] like Figure 9 As shown, the extrusion plate 5 and the top of the multiple loading barrel shells 3 are provided with feed holes 44, and sealing blocks 45 can be removably installed in the multiple feed holes 44. Specifically, the sealing blocks 45 can be connected to the extrusion plate 5 by bolts, and the bottom end of the sealing block 45 is adapted to the inner wall of the peripheral side of the loading barrel shell 3.

[0040] In this embodiment, by providing a plurality of feed holes 44 , the feeding function can be realized at different positions, thereby facilitating the fusion of multiple materials.

[0041] During use, when installing the lower barrel housing 2 and the upper barrel housing 3, first align the multiple pins 46 at the bottom of one of the lower barrel housings 2 with the multiple pin grooves on the top of the movable plate 4 and insert them, then pull the operating block 12 on the side of the upper barrel housing 3, thereby driving the plug rod 8 to move into the telescopic hole 7, and when the operating block 12 contacts the inclined portion of the first trapezoidal block 13, it is squeezed, thereby driving the first trapezoidal block 13 to move downward and squeeze the second compression spring 15, and when the operating block 12 moves to the appropriate Position, the squeezing effect on the first trapezoidal block 13 disappears, and the first trapezoidal block 13 is reset under the elastic action of the second compression spring 15, limiting the operating block 12, and then the other lower barrel shell 2 is installed on its side, pressing the first trapezoidal block 13 downward to release the limitation on the operating block 12, and the operating block 12 and the plug-in rod 8 are reset by the elastic action of the first compression spring 10, and inserted into the plug-in hole on the side of the other upper barrel shell 3, thereby realizing the connection function between the upper barrel shells 3.

[0042] Open the upper barrel housings 3, place the two extrusion screws 43 on top of the lower barrel housing 2, and connect the mounting plate 41 to the lower barrel housing 2 with the fixing bolts 42. After closing the upper barrel housing 3, connect the mounting plate 41 to the upper barrel housing 3 with the fixing bolts 42, and connect the connecting plate 6 to the corresponding upper barrel housing 3 and lower barrel housing 2 with the connecting bolts to improve the fixing effect.

[0043] When the extrusion plate 5 is flipped toward the second lifting plate 32, the second trapezoidal clamping block 34 is squeezed to move it into the rectangular groove and compress the clamping spring 38. When the extrusion plate 5 is flipped to an appropriate angle, the second trapezoidal clamping block 34 corresponds to the clamping groove 39, thereby driving the second trapezoidal clamping block 34 to move into the clamping groove 39 under the elastic action of the clamping spring 38, thereby realizing the clamping function with the extrusion plate 5. The driving motor 29 drives one of the rotating shafts 26 to rotate, thereby driving multiple gears 23 to synchronously engage with multiple first straight racks 30 and multiple second straight racks 33 respectively, driving multiple first lifting plates 22 and multiple second lifting plates 32 to move downward synchronously, so that the rectangular clamping strip 40 at the bottom of the extrusion plate 5 is clamped with the extrusion groove above the multiple loading barrel shells 3 and has an extrusion and fixing effect on the multiple loading barrel shells 3.

[0044] Finally, the mobile motor 21 is activated, and the meshing action of the two synchronous pulleys 19 and the synchronous belt 20 drives the two screws 18 to rotate synchronously. This, in turn, drives the two rectangular sliders 16 and the mobile plate 4 to move horizontally synchronously through the action of the threads, so that the linkage holes at the ends of the two extrusion screws 43 engage with the power source, achieving the rotary extrusion function. In this embodiment, the power source includes an extrusion motor and a reducer. The reducer is equipped with two drive shafts, one end of which is a polygon that matches the linkage hole. A drive gear is fixed to each drive shaft, and the two drive gears mesh with each other. The extrusion motor is connected to any one of the drive gears.

[0045] When it is necessary to clean the inner walls of the lower barrel shell 2 and the upper barrel shell 3 later, the extrusion screw 43 is first driven by the moving plate 4 to release the clamping connection with the power source, and then the multiple first lifting plates 22 and the multiple second lifting plates 32 are driven by the driving motor 29 to move upward synchronously, releasing the extrusion of the multiple upper barrel shells 3 by the extrusion plate 5, and then pulling the pull ring 36 to drive the second trapezoidal block 34 to move horizontally, releasing the limit with the card slot 39, and then rotating the pull ring 36 ninety degrees to make it stuck on the U-shaped plate 37, after turning over the extrusion plate 5, the mounting plate 41 and the upper barrel shell are disassembled. After the two fixing bolts 42 connected to the body 3 and the connecting bolts connected to the connecting plate 6 are tightened, the multiple upper barrel shells 3 are lifted upward synchronously under the action of the multiple plug-in rods 8, thereby cleaning the inner wall of the upper barrel shell 3 and the two extrusion screws 43. Then the upper barrel shell 3 is reset, the mounting plate 41 is fixed to the upper barrel shell 3 by the fixing bolts 42, and the fixing bolts 42 on the lower barrel shell 2 and the mounting plate 41 are removed. Then the upper barrel shell 3 is turned over, so that the extrusion screws 43 are turned over synchronously, thereby cleaning the inner wall of the lower barrel shell 2. This arrangement improves the convenience of installation and disassembly operations and facilitates installation and subsequent cleaning of the inner walls of the upper barrel shell 3 and the lower barrel shell 2.

[0046] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any other manner. Any person skilled in the art may utilize the above-disclosed technical content to modify or modify the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A hot melt extrusion device, comprising a body (1) and an extrusion plate (5), characterized in that: A moving plate (4) is slidably mounted on the top of the machine body (1) through a moving assembly, and a plurality of lower barrel shells (2) are movably mounted on the top of the moving plate (4), and an upper barrel shell (3) is detachably connected above the plurality of lower barrel shells (2). The lower barrel shell (2) and the upper barrel shell (3) are combined into a barrel shell, and the extrusion plate (5) is located on the upper side of the upper barrel shell (3). Each adjacent two upper barrel shells (3) are connected through a plug-in assembly, and a first lifting plate (22) and a second lifting plate (32) are mounted on the moving plate (4) through a lifting assembly, wherein the first lifting plate (22) and the second lifting plate (32) are respectively arranged on both sides of the barrel shell, and the first lifting plate (22) and the second lifting plate (32) are respectively arranged on both sides of the barrel shell, and the first lifting plate (22) and the second lifting plate (32) are respectively arranged on both sides of the barrel shell. The lowering plate (22) and the second lifting plate (32) correspond to each other one by one, and the top of each first lifting plate (22) is a semi-cylindrical shape with a convex middle portion. Connecting grooves are provided on both sides of the extrusion plate (5). The upper end of the first lifting plate (22) slides into the corresponding connecting groove. The top of each first lifting plate (22) is coaxially mounted with a mounting shaft (31). Both ends of the mounting shaft (31) extend out of the first lifting plate (22) and are rotatably connected to the extrusion plate (5). The top of each second lifting plate (32) slides into the connecting groove on the corresponding side. A locking assembly is provided between each second lifting plate (32) and the extrusion plate (5). An extrusion assembly is provided in the barrel shell, and the extrusion assembly is detachably connected to the power source.

2. The hot melt extrusion device according to claim 1, characterized in that: The moving assembly includes two screw rods (18). A moving groove is provided on the top of the machine body (1). The moving grooves are arranged on both sides of the moving plate (4). A screw rod (18) is rotatably installed in each moving groove. A rectangular slider (16) is slidably installed in each moving groove. The rectangular slider (16) is threadedly connected to the screw rod (18) on the corresponding side. Each rectangular slider (16) is fixedly connected to the moving plate (4). A synchronous pulley (19) is coaxially fixed on each screw rod (18). The two synchronous pulleys (19) are connected by a synchronous belt (20). A moving motor (21) is installed on one side of the machine body (1). The output shaft of the moving motor (21) is connected to any one of the screw rods (18) and drives it to rotate.

3. The hot melt extrusion device according to claim 1, characterized in that: The plug-in assembly includes a plug-in rod (8), and in each of two adjacent loading barrel shells (3), a telescopic hole (7) is opened on the side of one of the loading barrel shells (3), and a first limiting shaft (9) is fixedly installed on the inner wall of the end of the telescopic hole (7). One end of the plug-in rod (8) extends into the telescopic hole (7) and is slidably sleeved on the outside of the first limiting shaft (9). The outer sleeve of the first limiting shaft (9) is provided with a first compression spring (10). An operating hole (11) is opened on the side of the telescopic hole (7), and an operating unit is provided in the operating hole (11). A plug-in hole is opened on the side of the other loading barrel shell (3), and the other end of the plug-in rod (8) extends into the plug-in hole.

4. The hot melt extrusion device according to claim 3, characterized in that: The operating unit comprises an operating block (12), the operating block (12) being movably arranged in the operating hole (11) and fixedly connected to the plug rod (8), a limiting groove being provided at the bottom of the operating hole (11), a second limiting shaft (14) being fixedly mounted on the inner wall of the bottom of the limiting groove, a first trapezoidal clamping block (13) being slidably mounted on the second limiting shaft (14), and a second compression spring (15) being provided on the outer sleeve of the second limiting shaft (14).

5. The hot melt extrusion device according to claim 1, characterized in that: The lifting assembly includes two rotating shafts (26), a transmission groove (24) is provided on the movable plate (4), a rotating shaft (26) is rotatably installed in each transmission groove (24), a linkage shaft (48) is rotatably installed on the movable plate (4), a second bevel gear (28) is provided at both ends of the linkage shaft (48), a first bevel gear (27) is provided on each rotating shaft (26), the first bevel gear (27) is meshed with the second bevel gear (28), a driving motor (29) is installed on the side of the movable plate (4), and the output shaft of the driving motor (29) is connected to any one of the rotating shafts (26).

6. The hot melt extrusion device according to claim 5, characterized in that: The lifting assembly further comprises a plurality of gears (23), wherein the plurality of gears (23) are respectively fixedly sleeved on the two rotating shafts (26), and the first straight racks (30) and the second straight racks (33) are fixedly mounted on the mutually distant sides of the plurality of first lifting plates (22) and the plurality of second lifting plates (32), and each first straight rack (30) and the second straight rack (33) are respectively engaged with the corresponding gears (23).

7. The hot melt extrusion device according to claim 1, characterized in that: The locking assembly comprises a second trapezoidal block (34), a rectangular groove is provided on the side of the second lifting plate (32), one end of the second trapezoidal block (34) is slidably arranged in the rectangular groove, a circular hole is provided on the inner wall of the side of the rectangular groove, a guide shaft (35) is slidably installed in the circular hole, one end of the guide shaft (35) is fixedly connected to the side of the second trapezoidal block (34), a pull ring (36) is rotatably installed on the other end of the guide shaft (35), a clamping spring (38) is provided on the outer sleeve of the guide shaft (35), two U-shaped plates (37) are fixedly installed on the other side of the second lifting plate (32), and the two U-shaped plates (37) are symmetrically arranged on the upper and lower sides of the corresponding pull ring (36), and a plurality of clamping grooves (39) are provided on the side of the extrusion plate (5) to cooperate with the second trapezoidal block (34).

8. The hot melt extrusion device according to claim 1, characterized in that: The extrusion assembly comprises a mounting plate (41) and two extrusion screws (43). The mounting plate (41) is fixedly connected to the lower barrel shell (2) and the upper barrel shell (3) via fixing bolts (42). The two extrusion screws (43) are rotatably arranged in the barrel shell. The ends of the extrusion screws (43) can rotatably pass through the mounting plate (41) and extend out. The ends of the two extrusion screws (43) are both provided with regular polygonal linkage holes.

9. The hot melt extrusion device according to claim 1, characterized in that: Two rectangular clamping strips (40) are fixedly installed on the bottom of the extrusion plate (5), two extrusion grooves are opened on the top of the multiple upper barrel shells (3), and the two rectangular clamping strips (40) are respectively adapted to the multiple extrusion grooves, and four pins (46) are fixedly installed on the bottom of the multiple lower barrel shells (2), and multiple pin grooves are opened on the top of the movable plate (4), and the multiple pins (46) are respectively adapted to the multiple pin grooves.

10. The hot melt extrusion device according to claim 1, characterized in that: The extrusion plate (5) and the tops of the plurality of feeding barrel shells (3) are each provided with a feeding hole (44), and a sealing block (45) is detachably installed in each of the plurality of feeding holes (44).

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