Hot melt extrusion device

Abstract

The application relates to the technical field of melt extrusion devices, and discloses a hot melt type extrusion device which comprises a machine body and an extrusion plate, a moving plate is slidably arranged on the top of the machine body through a moving assembly. When the inner walls of the lower feeding cylinder shell and the upper feeding cylinder shell need to be cleaned, the moving plate is used to disengage the extrusion screw from the power source, then the first lifting plate and the second lifting plate are driven by the driving motor to ascend, the extrusion plate is disengaged from the multiple upper feeding cylinder shells, the upper feeding cylinder shell can be disassembled, and the inner wall of the upper feeding cylinder shell and the extrusion screw can be cleaned. Then the upper feeding cylinder shell is reset, the extrusion bolt is fixed to the upper feeding cylinder shell through fixing bolts and mounting plates, the fixing with the lower feeding cylinder shell is released, the upper feeding cylinder shell is turned over again to clean the inner wall of the lower feeding cylinder shell, and the convenience of installation and disassembly is improved, and the installation and subsequent cleaning are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to melt extrusion device technical field, more particularly to hot melt type extrusion device. BACKGROUND

[0002] Rapid prototyping technology is a new advanced manufacturing technology in the late 1980s, which is a kind of prototype manufacturing technology based on the idea of discrete accumulation. At present, there are more than 10 kinds of rapid prototyping process technology, and the most typical process methods are stereolithography (SL), laminated object manufacturing (LOM), selective laser sintering (SLS) and fused deposition modeling (FDM).

[0003] The traditional hot melt material extrusion device is a fixed structure with driving device or driving pump, heating device and extrusion head. Its structure is relatively simple, but after long time use, some materials will remain inside, which may solidify and deteriorate if not cleaned in time, affecting the next use. However, due to the complex internal structure of the device, a lot of working time is consumed during installation and disassembly, and some dead angles are generated in screw and barrel parts, which is difficult to clean. SUMMARY

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

[0005] The present application provides the following technical scheme: a hot melt type extrusion device, comprising a machine body, an extrusion plate, a moving plate is slidably installed on the top of the machine body through a moving assembly, a plurality of lower feeding cylinder housings are movably installed on the top of the moving plate, an upper feeding cylinder housing is detachably connected above the plurality of lower feeding cylinder housings, the lower feeding cylinder housing and the upper feeding cylinder housing are combined into a feeding cylinder housing, the extrusion plate is located on the upper side of the upper feeding cylinder housing, each adjacent two upper feeding cylinder housings are connected through a plug-in assembly, a first lifting plate and a second lifting plate are installed on the moving plate through a lifting assembly, wherein the first lifting plate and the second lifting plate are respectively arranged on both sides of the feeding cylinder housing, and the first lifting plate and the second lifting plate are one-to-one corresponding, the top of each first lifting plate is a semicylindrical shape with a convex middle part, a connecting groove is arranged on both sides of the extrusion plate, the upper end of the first lifting plate slides into the corresponding connecting groove, an installation shaft is coaxially installed on the top of each first lifting plate, the both ends of the installation shaft extend out of the first lifting plate and are rotatably connected with the extrusion plate, the top of each second lifting plate slides into the connecting groove on the corresponding side, a locking assembly is arranged between each second lifting plate and the extrusion plate, an extrusion assembly is arranged in the feeding cylinder housing, and the extrusion assembly is detachably connected with a power source.

[0006] Further, the moving assembly comprises two lead screws, the top of the machine body is provided with two moving grooves arranged on the two sides of the moving plate, each moving groove is rotatably provided with a lead screw, each moving groove is slidably provided with a rectangular sliding block, the rectangular sliding block is threadedly connected with the lead screw on the corresponding side, each rectangular sliding block is fixedly connected with the moving plate, each lead screw is coaxially fixed with a synchronous pulley, the two synchronous pulleys are connected through a synchronous belt, and a moving motor is installed on one side of the machine body, the output shaft of the moving motor is connected with any one lead screw and drives the rotation of the lead screw.

[0007] Further, the plug-in assembly comprises a plug-in rod, each adjacent two feeding cylinder housings are provided with a telescopic hole and a first limiting shaft fixedly installed on the end wall of the telescopic hole, one end of the plug-in rod extends into the telescopic hole and is slidably sleeved on the first limiting shaft, a first compression spring is sleeved on the first limiting shaft, an operation hole is formed in the side of the telescopic hole, an operation unit is arranged in the operation hole, and the side of the other feeding cylinder housing is provided with a plug-in hole, and the other end of the plug-in rod extends into the plug-in hole.

[0008] Further, the operation unit comprises an operation block, the operation block is movably arranged in the operation hole and fixedly connected with the plug-in rod, a limiting groove is formed in the bottom of the operation hole, 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 sleeved on the second limiting shaft.

[0009] Further, the lifting assembly comprises two rotating shafts, the moving plate is provided with a transmission groove, each transmission groove is rotatably provided with a rotating shaft, the moving plate is rotatably provided with a linkage shaft, the two ends of the linkage shaft are provided with second bevel gears, each rotating shaft is provided with a first bevel gear, the first bevel gear is meshed with the second bevel gear, and the side of the moving plate is provided with a driving motor, the output shaft of the driving motor is connected with any one rotating shaft.

[0010] Further, the lifting assembly further comprises a plurality of gears, the plurality of gears are fixedly sleeved on the two rotating shafts, the side of each first lifting plate and second lifting plate away from each other is fixedly provided with a first straight toothed rack and a second straight toothed rack, and each first straight toothed rack and second straight toothed rack is meshed with the corresponding gear.

[0011] Further, the locking assembly comprises a second trapezoidal clamping block, a side of the second lifting plate is provided with a rectangular groove, one end of the second trapezoidal clamping block is slidably arranged in the rectangular groove, a side inner wall of the rectangular groove is provided with a round hole, a guide shaft is slidably arranged in the round hole, one end of the guide shaft is fixedly connected with the side of the second trapezoidal clamping block, the other end of the guide shaft is rotatably arranged with a pull ring, the guide shaft is provided with a clamping spring, the other side of the second lifting plate is fixedly arranged with two U-shaped plates, the two U-shaped plates are symmetrically arranged on the upper and lower sides of the corresponding pull ring, and the side of the extrusion plate is provided with a plurality of clamping grooves matched with the second trapezoidal clamping block.

[0012] Further, the extrusion assembly comprises a mounting plate, two extrusion screws, the mounting plate is fixedly connected with the lower barrel shell and the upper barrel shell through fixing bolts, the two extrusion screws are rotatably arranged in the barrel shell, the ends of the extrusion screws are rotatably arranged through the mounting plate and extend out, and the ends of the two extrusion screws are provided with polygonal linkage holes.

[0013] Further, the bottom of the extrusion plate is fixedly arranged with two rectangular clamping strips, the top of each of the plurality of upper barrel shells is provided with two extrusion grooves, the two rectangular clamping strips are matched with the plurality of extrusion grooves respectively, the bottom of each of the plurality of lower barrel shells is fixedly arranged with four pin columns, and the top of the moving plate is provided with a plurality of pin grooves.

[0014] Further, the top of the extrusion plate and the plurality of upper barrel shells is provided with a feeding hole, and a sealing block is detachably arranged in each of the plurality of feeding holes.

[0015] The present application has the following beneficial effects compared with the prior art:

[0016] 1. The connection function between the two upper barrel shells is realized through the arrangement of the plug-in rod and the plug-in hole, so that when one of the upper barrel shells is opened, the other upper barrel shells can be driven to rotate synchronously, thereby opening the plurality of upper barrel shells synchronously, the plug-in rod is driven to move horizontally through the operation unit, the clamping between the plurality of upper barrel shells is released, and one of the upper barrel shells can be opened alone, so that the maintenance personnel can more conveniently disassemble and replace the specific parts.

[0017] 2. The plurality of gears on the two rotating shafts are driven to rotate reversely synchronously through the synchronous reverse rotation of the two rotating shafts, the plurality of first lifting plates and the plurality of second lifting plates are driven to realize the lifting movement function synchronously through the meshing action of the first and second straight toothed racks, and the extrusion plate is driven to move up and down synchronously, so as to extrude and fix the upper barrel shell. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1It is a structural schematic diagram of the embodiment;

[0019] Figure 2 It is a structural schematic diagram of the embodiment;

[0020] Figure 3 It is a structural schematic diagram of the embodiment;

[0021] Figure 4 It is a structural schematic diagram of the embodiment; Figure 3 It is a structural schematic diagram of the embodiment;

[0022] Figure 5 It is a structural schematic diagram of the embodiment;

[0023] Figure 6 It is a structural schematic diagram of the embodiment; Figure 5 It is a structural schematic diagram of the embodiment;

[0024] Figure 7 It is a structural schematic diagram of the embodiment;

[0025] Figure 8 It is a structural schematic diagram of the embodiment; Figure 7 It is a structural schematic diagram of the embodiment;

[0026] Figure 9 It is a structural schematic diagram of the embodiment;

[0027] Figure 10 It is a structural schematic diagram of the embodiment; Figure 9 It is a structural schematic diagram of the embodiment;

[0028] Figure 11 It is a structural schematic diagram of the embodiment;

[0029] Figure 12 It is a structural schematic diagram of the embodiment.

[0030] The reference signs are: 1, body; 2, lower feeding cylinder shell; 3, upper feeding cylinder shell; 4, moving plate; 5, extrusion plate; 6, connecting plate; 7, telescopic hole; 8, plug-in rod; 9, first limiting shaft; 10, first compression spring; 11, operation hole; 12, operation block; 13, first trapezoidal clamping block; 14, second limiting shaft; 15, second compression spring; 16, rectangular sliding block; 17, first transmission cavity; 18, lead screw; 19, synchronous pulley; 20, synchronous belt; 21, moving motor; 22, first lifting plate; 23, gear; 24, transmission groove; 25, second transmission cavity; 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, feeding hole; 45, sealing block; 46, pin column; 47, bearing seat; 48, linkage shaft. DETAILED DESCRIPTION

[0031] The application will be further described below in connection with specific embodiments, however, people skilled in the art should understand that the detailed description given in connection with the drawings is for better explanation, the structure of the application must be beyond the limited embodiments, and for some equivalent alternatives or common means, the detailed description will not be given in the text, but still belongs to the protection scope of the application.

[0032] Figures 1-12 The best embodiment of the application is described below in connection with the drawings Figures 1-12 The application will be further described below in connection with specific embodiments, however, people skilled in the art should understand that the detailed description given in connection with the drawings is for better explanation, the structure of the application must be beyond the limited embodiments, and for some equivalent alternatives or common means, the detailed description will not be given in the text, but still belongs to the protection scope of the application.

[0033] The application will be further described below in connection with specific embodiments, however, people skilled in the art should understand that the detailed description given in connection with the drawings is for better explanation, the structure of the application must be beyond the limited embodiments, and for some equivalent alternatives or common means, the detailed description will not be given in the text, but still belongs to the protection scope of the application. Figures 1-12The hot melt type extrusion device comprises a machine body 1, an extrusion plate 5, specifically further comprises a power source and a display screen, the power source and the display screen are prior art, the power source and the display screen are arranged on the machine body 1, a moving plate 4 is slidably installed on the top of the machine body 1 through a moving assembly, a plurality of lower feeding cylinder housings 2 are movably installed on the top of the moving plate 4, an upper feeding cylinder housing 3 is detachably connected above each of the plurality of lower feeding cylinder housings 2 through a connecting plate 6, the upper feeding cylinder housing 3 and the lower feeding cylinder housing 2 are combined into a complete feeding cylinder housing, the extrusion plate 5 is located on the upper side of the upper feeding cylinder housing 3, each adjacent two upper feeding cylinder housings 3 are connected through a plug-in assembly, a first lifting plate 22 and a second lifting plate 32 are installed 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 feeding cylinder housing, and the first lifting plate 22 and the second lifting plate 32 are one-to-one corresponding, the top of each first lifting plate 22 is a semicylindrical shape with a convex middle part, connecting grooves are arranged on both sides of the extrusion plate 5, the upper end of the first lifting plate 22 slides into the corresponding connecting groove, an installation shaft 31 is coaxially installed on the top of each first lifting plate 22, both ends of the installation shaft 31 extend out of the first lifting plate 22 and are rotatably connected with 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 arranged between each second lifting plate 32 and the extrusion plate 5, an extrusion assembly is arranged in the feeding cylinder housing, and the extrusion assembly is detachably connected with the power source. The moving assembly drives the moving plate 4 to move, so that the extrusion assembly is connected with or disconnected from the power source.

[0034] The lower side of the connecting plate 6 is detachably connected with the lower feeding cylinder housing 2 through connecting bolts, and the upper side of the connecting plate 6 is detachably connected with the upper feeding cylinder housing 3 through connecting bolts, so that the pair of lower feeding cylinder housings 2 and the upper feeding cylinder housing 3 are connected into one body. Since the upper feeding cylinder housing 3 is pressed by the extrusion plate 5, only one side needs to be provided with the connecting plate 6, of course, the connecting plate 6 can also be provided on both sides, and when the upper feeding cylinder housing 3 or the lower feeding cylinder housing 2 needs to be cleaned, the connecting bolts can be disassembled.

[0035] As Figure 5 and Figure 6As shown, the moving assembly includes two lead screws 18, the top of the body 1 is provided with moving grooves, the moving grooves are provided with two on both sides of the moving plate 4, the body 1 is provided with a first transmission cavity 17, the first transmission cavity 17 is provided at one end of the moving plate 4 and is in communication with the two moving grooves respectively, the lead screw 18 is rotatably installed in each moving groove, the rectangular slide block 16 is slidably installed in each moving groove, the rectangular slide block 16 is threadedly connected with the corresponding side lead screw 18, each rectangular slide block 16 is fixedly connected with the moving plate 4, the synchronous pulley 19 is coaxially fixed on each lead screw 18, the two synchronous pulleys 19 are connected through the synchronous belt 20 passing through the first transmission cavity 17, and the moving motor 21 is installed on one side of the body 1, the output shaft of the moving motor 21 is connected with any one of the lead screws 18 and drives it to rotate.

[0036] In the embodiment, the moving motor 21 drives one of the lead screws 18, and then drives the other lead screw 18 to synchronously rotate through the synchronous belt 20, and drives the rectangular slide block 16 to move horizontally in the sliding groove through the threaded action of the lead screw 18 and the rectangular slide block 16, so as to drive the lower barrel shell 2, the upper barrel shell 3 and the extrusion assembly to synchronously move horizontally, and to release the connection between the extrusion assembly and the power source.

[0037] As shown in Figure 3 and Figure 4 The plug-in assembly includes a plug-in rod 8, each adjacent two upper barrel shells 3, one side of one of the upper barrel shells 3 is provided with an expansion hole 7, a first limiting shaft 9 is fixedly installed in the expansion hole 7, one end of the plug-in rod 8 extends into the expansion hole 7 and is slidably sleeved outside the first limiting shaft 9, a first compression spring 10 is sleeved outside the first limiting shaft 9, an operation hole 11 is provided in the side of the expansion hole 7, the operation hole 11 is a long hole arranged along the first limiting shaft 9, an operation unit is arranged in the operation hole 11, and the other upper barrel shell 3 is provided with a plug-in hole, the other end of the plug-in rod 8 extends into the plug-in hole.

[0038] In the embodiment, the connection between the adjacent two upper barrel shells 3 can be realized through the arrangement of the plug-in rod 8 and the plug-in hole, which is convenient for driving other upper barrel shells 3 to synchronously overturn when one of the upper barrel shells 3 is opened, so as to synchronously open multiple upper barrel shells 3, the horizontal movement of the plug-in rod 8 can be driven by the operation unit, so as to release the clamping between the adjacent upper barrel shells 3, which is convenient for opening one of the upper barrel shells 3 alone, so that the maintenance personnel can more conveniently disassemble and replace specific parts.

[0039] As shown in Figure 4As shown, the operation unit comprises an operation block 12 movably arranged in the operation hole 11 and fixedly connected with the plug rod 8, the bottom of the operation hole 11 is provided with a limiting groove, the inner wall of the bottom of the limiting groove is fixedly installed with a second limiting shaft 14, the second limiting shaft 14 is slidably installed with a first trapezoidal clamping block 13, and the second limiting shaft 14 is externally sleeved with a second compression spring 15.

[0040] In the embodiment, through the arrangement of the first trapezoidal clamping block 13, when the operation block 12 slides and contacts the first trapezoidal clamping block 13, the operation block 12 can extrude the inclined part of the first trapezoidal clamping block 13 and make it shrink into the limiting groove, and when the operation block 12 continues to move and separates from the first trapezoidal clamping block 13, the second compression spring 15 pushes the first trapezoidal clamping block 13 to reset, thereby limiting the operation block 12, avoiding that the operation block 12 drives the plug rod 8 to realize the reset function under the action of the first compression spring 10, and more conveniently installing the feeding cylinder shell 3.

[0041] As shown in Figure 7 and Figure 8 , the lifting assembly comprises two rotating shafts 26, the moving plate 4 is provided with a transmission groove 24, one end of the moving plate 4 is provided with a second transmission cavity 25, both second transmission grooves 24 are in communication with the second transmission cavity 25, each transmission groove 24 is rotatably installed with a rotating shaft 26, the end of each rotating shaft 26 extends into the second transmission cavity 25, the second transmission cavity 25 is rotatably installed with a linkage shaft 48 through a bearing seat 47, both ends of the linkage shaft 48 are provided with second bevel gears 28, each rotating shaft 26 is provided with a first bevel gear 27, and the first bevel gear 27 is engaged with the second bevel gear 28. The side of the moving plate 4 is installed with a driving motor 29, and the output shaft of the driving motor 29 is connected with any one rotating shaft 26.

[0042] In the embodiment, one of the rotating shafts 26 is driven by the driving motor 29, and the other rotating shaft 26 is driven in reverse rotation by the linkage shaft 48. By adjusting the relative position of the first bevel gear 27 and the corresponding second bevel gear 28, the rotating direction of the two rotating shafts 26 can be controlled, which belongs to the prior art.

[0043] As shown in Figure 8 , the lifting assembly further comprises a plurality of gears 23, the plurality of gears 23 are fixedly sleeved on the two rotating shafts 26, the side of each of the plurality of first lifting plates 22 and the side of each of the plurality of second lifting plates 32 away from each other are fixedly installed with a first straight rack 30 and a second straight rack 33, respectively, and each first straight rack 30 and second straight rack 33 is engaged with a corresponding gear 23.

[0044] In the embodiment, through synchronous reverse rotation of the two rotating shafts 26, the plurality of gears 23 located on the two rotating shafts 26 can be driven to rotate reversely synchronously, through meshing with the first straight rack 30 and the second straight rack 33, the plurality of first lifting plates 22 and the plurality of second lifting plates 32 can be driven to realize synchronous lifting movement function, so as to drive the extrusion plate 5 to move up and down synchronously, and extrude and fix the upper feeding cylinder shell 3.

[0045] As shown in Figure 9 and Figure 10 , the locking assembly comprises a second trapezoidal clamping block 34, the side of the second lifting plate 32 is provided with a rectangular groove, one end of the second trapezoidal clamping block 34 is slidingly arranged in the rectangular groove, a circular hole is formed in the side inner wall of the rectangular groove, a guide shaft 35 is slidingly installed in the circular hole, one end of the guide shaft 35 is fixedly connected with the second trapezoidal clamping block 34, a pull ring 36 is rotatably installed at the other end of the guide shaft 35, a clamping spring 38 is sleeved on the guide shaft 35, 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 clamping grooves 39 matched with the second trapezoidal clamping block 34 are formed in the side of the extrusion plate 5.

[0046] In the 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 extrudes the inclined portion of the second trapezoidal clamping block 34, so that the second trapezoidal clamping block 34 is retracted into the rectangular groove, and the extrusion plate 5 continues to move, when the clamping groove 39 is aligned with the rectangular groove, the clamping spring 38 pushes the second trapezoidal clamping block 34, so that one end of the second trapezoidal clamping block 34 extends into the clamping groove 39, thereby achieving the locking of the extrusion plate 5, when it is needed to unlock, the pull ring 36 is pulled outward until the pull ring 36 moves out of between the two U-shaped plates 37, 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 the pull ring 36 is released, the two U-shaped plates 37 limit the second trapezoidal clamping block 34 through the pull ring 36, thereby maintaining the state of unlocking the extrusion plate 5.

[0047] As shown in Figure 11 , the extrusion assembly comprises a mounting plate 41 and two extrusion screws 43, the mounting plate 41 is fixedly connected with the lower feeding cylinder shell 2 and the upper feeding cylinder shell 3 through fixing bolts 42, the two extrusion screws 43 are rotatably arranged in the cylinder shell, the end portions of the extrusion screws 43 rotatably penetrate through the mounting plate 41 and extend out, and the end portions of the two extrusion screws 43 are provided with polygonal linkage holes.

[0048] In the embodiment, the installation plate 41 is installed by using a plurality of fixing bolts 42, the connection function of the installation plate 41 with the lower barrel shell 2 and the upper barrel shell 3 is realized, the extrusion screw 43 is installed, the fixing bolts 42 at different positions are disassembled and installed, the installation plate 41 is connected with the lower barrel shell 2 and the upper barrel shell 3 respectively, and the inner walls of the lower barrel shell 2 and the upper barrel shell 3 are cleaned respectively.

[0049] As shown in Figure 10 and Figure 12 two rectangular clamping strips 40 are fixedly installed at the bottom of the extrusion plate 5, the top of each of the plurality of upper barrel shells 3 is provided with two extrusion grooves, the two rectangular clamping strips 40 are respectively matched with the plurality of extrusion grooves and extend into the corresponding extrusion grooves, the bottom of each of the plurality of lower barrel shells 2 is fixedly provided with four pin columns 46, the top of the moving plate 4 is provided with a plurality of pin grooves, and the plurality of pin columns 46 are respectively matched with the plurality of pin grooves and extend into the corresponding pin grooves.

[0050] In the embodiment, the two rectangular clamping strips 40 and the two extrusion grooves are arranged, the upper barrel shell 3 is transversely limited when the extrusion plate 5 moves downward, the pin column 46 and the pin groove are arranged, and the positioning function is realized when the lower barrel shell 2 is installed.

[0051] As shown in Figure 9 the extrusion plate 5 and the top of each of the plurality of upper barrel shells 3 are provided with a feeding hole 44, and the feeding hole 44 is detachably provided with a sealing block 45. Specifically, the sealing block 45 is connected with the extrusion plate 5 by a bolt, and the bottom end of the sealing block 45 is matched with the inner wall of the upper barrel shell 3.

[0052] In the embodiment, a plurality of feeding holes 44 are arranged, the feeding function is realized at different positions, and a plurality of materials are fused.

[0053] In use, when installing the lower feeding cylinder shell 2 and the upper feeding cylinder shell 3, first, align the plurality of pin columns 46 at the bottom of one of the lower feeding cylinder shells 2 with the plurality of pin slots at the top of the moving plate 4, then pull the operation block 12 at the side of the upper feeding cylinder shell 3, so as to drive the insertion rod 8 to move into the telescopic hole 7, when the operation block 12 contacts the inclined part of the first trapezoidal clamping block 13, the first trapezoidal clamping block 13 is driven to move downward and press the second compression spring 15, when the operation block 12 moves to the appropriate position, the pressing action of the first trapezoidal clamping block 13 disappears, so that the first trapezoidal clamping block 13 is reset under the elastic action of the second compression spring 15, and the operation block 12 is limited, then the other lower feeding cylinder shell 2 is installed at the side thereof, the first trapezoidal clamping block 13 is pressed downward, the limitation of the operation block 12 is released, the operation block 12 and the insertion rod 8 are reset under the elastic action of the first compression spring 10, and the insertion rod 8 is inserted into the insertion hole at the side of the other upper feeding cylinder shell 3, so as to realize the connection function between the upper feeding cylinder shells 3.

[0054] Open the plurality of upper feeding cylinder shells 3, place the two extrusion screws 43 above the lower feeding cylinder shell 2, and connect the mounting plate 41 with the lower feeding cylinder shell 2 through the fixing bolt 42. After covering the upper feeding cylinder shell 3, then connect the mounting plate 41 with the upper feeding cylinder shell 3 through the fixing bolt 42, and connect the connecting plate 6 with the corresponding upper feeding cylinder shell 3 and lower feeding cylinder shell 2 through the connecting bolt, so as to improve the fixing effect.

[0055] Turn the extrusion plate 5 to the second lifting plate 32, when the extrusion plate 5 is turned, the second trapezoidal clamping block 34 is pressed, so as to move into the rectangular slot and compress the clamping spring 38, when the extrusion plate 5 is turned to the appropriate angle, the second trapezoidal clamping block 34 corresponds to the clamping slot 39, so that the second trapezoidal clamping block 34 moves into the clamping slot 39 under the elastic action of the clamping spring 38, realizes the clamping function with the extrusion plate 5, the driving motor 29 drives one of the rotating shafts 26 to rotate, so as to drive the plurality of gears 23 to mesh with the plurality of first straight racks 30 and the plurality of second straight racks 33 synchronously, drive the plurality of first lifting plates 22 and the plurality of second lifting plates 32 to move downward synchronously, so that the rectangular clamping strip 40 at the bottom of the extrusion plate 5 clamps with the extrusion slots above the plurality of upper feeding cylinder shells 3 and extrudes and fixes the plurality of upper feeding cylinder shells 3.

[0056] Finally, the moving motor 21 is started, and the two lead screws 18 are driven to rotate synchronously by the meshing of the two synchronous pulleys 19 and the synchronous belt 20, and then the two rectangular sliding blocks 16 and the moving plate 4 are driven to move horizontally synchronously by the screw thread, so that the linkage holes at the ends of the two extrusion screws 43 are connected with the power source, and the rotating extrusion function is realized. In the embodiment, the power source includes an extrusion motor and a speed reducer, and the speed reducer is provided with two driving shafts, one end of each driving shaft is a polygon matched with the linkage hole, each driving shaft is fixed with a driving gear, and the two driving gears are meshed, and the extrusion motor is connected with any one driving gear.

[0057] When it is necessary to clean the inner walls of the lower feeding cylinder shell 2 and the upper feeding cylinder shell 3, first, the moving plate 4 is used to drive the extrusion screw 43 to be disconnected with the power source, then the first lifting plates 22 and the second lifting plates 32 are driven to move upward synchronously by the driving motor 29, the extrusion plate 5 is disconnected with the upper feeding cylinder shell 3, then the second trapezoidal block 34 is driven to move horizontally by pulling the pull ring 36, the pull ring 36 is rotated by 90 degrees to be clamped on the U-shaped plate 37, the extrusion plate 5 is turned over, the two fixing bolts 42 connecting the mounting plate 41 with the upper feeding cylinder shell 3 and the connecting bolt connecting the connecting plate 6 are disassembled, the upper feeding cylinder shell 3 is lifted upward synchronously under the action of the plurality of plug-in rods 8, so that the inner wall of the upper feeding cylinder shell 3 and the two extrusion screws 43 are cleaned, then the upper feeding cylinder shell 3 is reset, the mounting plate 41 is fixed with the upper feeding cylinder shell 3 by the fixing bolts 42, and the fixing bolts 42 on the mounting plate 41 are disassembled from the lower feeding cylinder shell 2, then the upper feeding cylinder shell 3 is turned over, and the extrusion screw 43 is turned over synchronously, so that the inner wall of the lower feeding cylinder shell 2 is cleaned. In this way, the convenience of the installation and disassembly operation is improved, and the installation and the subsequent cleaning of the inner walls of the upper feeding cylinder shell 3 and the lower feeding cylinder shell 2 are facilitated.

[0058] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms. Any person skilled in the art can modify or change the above disclosed technical content to obtain equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application still falls within the protection scope of the present application.

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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