Screw extrusion additive device with anti-blocking function

Abstract

The application provides a screw extrusion additive equipment with anti-blocking function, and relates to the technical field of additive manufacturing. The additive extrusion mechanism is internally connected and driven by a driving mechanism, the left end of the additive extrusion mechanism is fixedly connected with an extrusion barrel, and the outside of the extrusion barrel is fixedly connected with a heater. Through the insertion of the dredging plug, the friction between the thermoplastic material inside the extrusion barrel and the inner wall thereof is increased, and the slipping rotation is stopped, and under the extrusion of the screw, the thermoplastic material inside the extrusion barrel returns to the flowing state. The thermoplastic material inside the extrusion barrel is dredged, the long-time blockage of the extrusion barrel is avoided, and the operation efficiency of the additive manufacturing equipment is affected. The problem that when the friction between the inner wall of the conveying channel and the bamboo charcoal polyester fiber is insufficient, the molten bamboo charcoal polyester fiber may slip during the screw advancing process, the flow is blocked, and the channel is easily accumulated, and then the blockage is caused during the operation process of the traditional screw extrusion mechanism for bamboo charcoal polyester fiber manufacturing is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of additive manufacturing, and particularly relates to a screw extrusion additive equipment with anti-blocking function. BACKGROUND

[0002] The screw extrusion mechanism is a core component of additive manufacturing technology such as 3D printing, which functions to convert solid materials such as thermoplastic, bamboo charcoal polyester fiber material and the like into a molten or semi-fluid state through mechanical action for layer-by-layer accumulation. The screw extrusion mechanism is usually composed of a screw, a heating element, a nozzle and a driving system. The screw rotates in a heating cavity, and the screw structure is closely matched with the inner wall of the cavity to form an effective material conveying channel. Under the action of the driving system, the screw rotates to push the material to move towards the nozzle, and the heating element provides heat to melt the material. Finally, the material is precisely extruded through the nozzle to form a predetermined three-dimensional structure.

[0003] During the operation of the conventional screw extrusion mechanism for bamboo charcoal polyester fiber manufacturing, when the friction between the inner wall of the conveying channel and the bamboo charcoal polyester fiber is insufficient, the molten bamboo charcoal polyester fiber may slip during the screw propulsion process, resulting in flow obstruction, and the material cannot be effectively conveyed to the nozzle, which is prone to accumulation in the channel, thereby causing blockage. SUMMARY

[0004] The present application discloses a screw extrusion additive equipment with anti-blocking function to solve the problem that during the operation of the conventional screw extrusion mechanism for bamboo charcoal polyester fiber manufacturing, when the friction between the inner wall of the conveying channel and the bamboo charcoal polyester fiber is insufficient, the molten bamboo charcoal polyester fiber may slip during the screw propulsion process, resulting in flow obstruction, and the material cannot be effectively conveyed to the nozzle, which is prone to accumulation in the channel, thereby causing blockage.

[0005] The first aspect of the present application provides a screw extrusion additive equipment with anti-blocking function, which specifically comprises: an additive extrusion mechanism, an internal driving mechanism of the additive extrusion mechanism being connected and driving a screw, a left end of the additive extrusion mechanism being fixedly connected with an extrusion barrel, an outside of the extrusion barrel being fixedly connected with a heater, a bottom plate of the additive extrusion mechanism being fixedly connected with two electromagnetic push cylinders on the upper surface, an upper end of the electromagnetic push cylinder being fixedly connected with a lifting translation frame, a lower part of the extrusion barrel being provided with a butt joint bottom opening, a left end of the butt joint bottom opening being extended and processed to the left side of the cavity of the extrusion barrel to form a left end socket, a right end of the butt joint bottom opening being extended and processed to the right side of the cavity of the extrusion barrel to form a right end socket, the inside of the butt joint bottom opening being slidably connected with a barrel sliding bottom plate, a lifting push seat being arranged below the barrel sliding bottom plate, the barrel sliding bottom plate being provided with a plug-in plate guide opening, a dredging plug-in plate being fixedly connected above the lifting push seat, the dredging plug-in plate being slidably inserted into the plug-in plate guide opening, the lifting push seat being movably connected with the lifting translation frame below, and the lifting translation frame being installed on the upper end of the push rod of the electromagnetic push cylinder.

[0006] Further, the bottom plate sliding groove is arranged on the inner wall of the docking bottom, the left end socket and the right end socket, the front edge and the rear edge of the barrel sliding bottom plate are respectively fixedly connected with a bottom plate sliding strip, and the bottom plate sliding strip is slidingly connected with the bottom plate sliding groove.

[0007] Further, the two pull shaft guide rods are arranged on the left side of the lower surface of the extrusion barrel, the two pull shaft guide rods are respectively slidingly connected with pull shaft sliding blocks, and the two pull shaft sliding blocks are fixedly connected with a lifting pull shaft.

[0008] Further, the upper end of the pull shaft sliding block is fixedly connected with a sliding block pull spring, and the upper end of the sliding block pull spring is fixedly connected with the inner side protruding plate of the pull shaft guide rod.

[0009] Further, the knocking gear cylinder is arranged on the lifting pull shaft through a ratchet pawl mechanism, the pawl in the ratchet pawl mechanism faces the clockwise direction in the front view, the wedge-shaped teeth on the outer cylinder surface of the knocking gear cylinder face the counterclockwise direction in the front view.

[0010] Further, the lower surface of the lifting push seat is provided with a wedge-shaped clamping tooth, and the wedge-shaped clamping tooth faces the lower right.

[0011] Further, the upper surface of the barrel sliding bottom plate is an arc-shaped concave surface, and the upper arc surface of the barrel sliding bottom plate is consistent with the arc of the inner surface of the extrusion barrel.

[0012] Further, the front surface and the rear surface of the lifting translation frame are respectively provided with a rectangular groove, and the lifting translation frame is parallel to the axis of the extrusion barrel.

[0013] Further, the front edge and the rear edge of the lifting push seat are fixedly connected with a translation connecting rod, the translation connecting rod is rotatably connected with two parallel translation rollers, and the two translation rollers are respectively rollingly connected with the upper surface and the lower surface of the groove body of the lifting translation frame.

[0014] Further, the lower surface of the barrel sliding bottom plate is fixedly connected with a pull spring connecting plate, the right surface of the pull spring connecting plate is fixedly connected with a bottom plate reset pull spring, and the right end of the bottom plate reset pull spring is fixedly connected with the right end of the lower surface of the extrusion barrel.

[0015] The application provides a screw extrusion additive equipment with a blocking prevention function, and has the following beneficial effects:

[0016] The application adopts an electromagnetic push cylinder to drive a lifting and translating frame, and combines the structures of a dredging plug and a sliding bottom plate of a material cylinder, so that when a blockage signal is detected, the dredging plug can quickly respond to control the dredging plug to pass through a plug guide opening and insert into the inside of the extrusion material cylinder, and the inside of the extrusion material cylinder is extruded by mechanical force to deform and damage the thermoplastic material and disperse the original form, so that the problem of blockage caused by the agglomeration of bamboo charcoal polyester fiber is solved. When the dredging plug is inserted into the inside of the extrusion material cylinder, the screw in the inside of the extrusion material cylinder continues to rotate, and the thermoplastic material rotates and slips with the inside of the extrusion material cylinder. At this time, the insertion of the dredging plug increases the friction between the bamboo charcoal polyester fiber in the inside of the extrusion material cylinder and the inner wall thereof and stops the slipping rotation, and the thermoplastic material in the inside of the extrusion material cylinder returns to a flowing state under the extrusion of the screw, so that the inside of the extrusion material cylinder is dredged, and the running efficiency of the additive manufacturing equipment is avoided from being affected by long-term blockage of the extrusion material cylinder.

[0017] In addition, when the dredging plug is inserted between the two threads of the screw, the thread is attached to the dredging plug with the rotation of the screw, and the dredging plug is pushed to the left, so that the sliding bottom plate of the material cylinder and the lifting push seat are synchronously moved to the left by a certain distance, and the thermoplastic material in the inside of the extrusion material cylinder is pushed for a short distance. When the left end of the sliding bottom plate of the material cylinder is inserted into the inside of the left end opening, the electromagnetic push cylinder is retracted, the lifting and translating frame and the lifting push seat are pulled downward, the dredging plug is retracted downward to the end to be flush with the upper arc surface of the sliding bottom plate of the material cylinder, and the sliding bottom plate of the material cylinder is pulled to the right under the action of the tension of the bottom plate reset spring. The dredging process can be continuously repeated for multiple times, and the dredging effect of the material in the inside of the extrusion material cylinder is further improved.

[0018] In addition, while the thermoplastic material is decomposed and pushed by the cooperation of the sliding bottom plate of the material cylinder and the lifting push seat, the extrusion material cylinder is also vibrated, the teeth of the knocking gear cylinder slide with the wedge-shaped clutches by moving the lifting push seat to the left, and the knocking gear cylinder is repeatedly pushed down under the action of the tooth structure. The knocking gear cylinder is pulled up multiple times by cooperating with the sliding block spring, so that the knocking gear cylinder and the lifting push seat collide frequently, the lifting push seat and the dredging plug vibrate, and the material in the inside of the extrusion material cylinder is decomposed and damaged under the vibration of the dredging plug. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings of the embodiments will be briefly introduced below.

[0020] The drawings described in the following description only relate to some embodiments of the application, and are not limited to the application.

[0021] In the drawings:

[0022] Figure 1 a schematic view showing the overall structure of the present application is shown;

[0023] Figure 2 The structure diagram of the inside of the extrusion barrel of the application is shown;

[0024] Figure 3 The structure diagram of the bottom of the application is shown; Figure 2

[0025] Figure 4 The structure diagram of the application in the exploded state is shown;

[0026] Figure 5 The structure diagram of the bottom of the lifting pusher of the application is shown;

[0027] Figure 6 The structure diagram of the barrel sliding bottom plate and the lifting pusher in the reset state of the application is shown;

[0028] Figure 7 The structure diagram of the knocking tooth barrel in the clamping state of the wedge-shaped clamping tooth of the application is shown;

[0029] Figure 8 The structure diagram of the knocking tooth barrel of the application is shown;

[0030] Figure 9 The structure diagram of the butt joint bottom opening of the application is shown;

[0031] Figure 10 The structure diagram of the part A of the application in the enlarged view is shown. Figure 3

[0032] List of reference signs

[0033] 1, additive extrusion mechanism; 2, extrusion barrel; 201, butt joint bottom opening; 202, bottom plate sliding groove; 203, left end socket; 204, right end socket; 205, pull shaft guide rod; 3, heater; 4, electromagnetic push cylinder; 5, barrel sliding bottom plate; 501, plug plate guide opening; 502, bottom plate sliding strip; 503, pull spring connecting plate; 504, bottom plate reset pull spring; 6, lifting pusher; 601, dredging plug plate; 602, translation connecting rod; 603, translation roller; 604, wedge-shaped clamping tooth; 7, lifting pull shaft; 701, pull shaft sliding block; 702, sliding block pull spring; 8, knocking tooth barrel; 9, lifting translation frame. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the application more clear, the technical scheme of the embodiments of the application will be described clearly and completely below with reference to the drawings of the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the described embodiments of the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.​​

[0035] Embodiment one: please refer to Figures 1 to 10 :

[0036] The application provides a screw extrusion additive equipment with anti-blocking function, which comprises an additive extrusion mechanism 1, an internal driving mechanism of the additive extrusion mechanism 1 is connected with and drives a screw, an extrusion barrel 2 is fixedly connected to the left end of the additive extrusion mechanism 1, a heater 3 is fixedly connected to the outside of the extrusion barrel 2, two electromagnetic push cylinders 4 are fixedly connected to the upper surface of the bottom plate of the additive extrusion mechanism 1, a lifting translation frame 9 is fixedly connected to the upper end of the electromagnetic push cylinder 4, a butt joint bottom opening 201 is formed below the extrusion barrel 2, a left end socket 203 is formed by extending the left end of the butt joint bottom opening 201 to the left side of the cavity of the extrusion barrel 2, a right end socket 204 is formed by extending the right end of the butt joint bottom opening 201 to the right side of the cavity of the extrusion barrel 2, a barrel sliding bottom plate 5 is slidably connected to the inside of the butt joint bottom opening 201, a lifting push seat 6 is arranged below the barrel sliding bottom plate 5, a plug guide opening 501 is formed in the barrel sliding bottom plate 5, a dredging plug 601 is fixedly connected to the upper side of the lifting push seat 6, the dredging plug 601 is slidably inserted into the plug guide opening 501, the lifting push seat 6 is movably connected to the lifting translation frame 9, and the lifting translation frame 9 is installed at the upper end of the push rod of the electromagnetic push cylinder 4. A hopper is connected to the upper side of the extrusion barrel 2, thermoplastic materials enter the inside of the extrusion barrel 2 through the hopper, the screw is driven to rotate by the driving mechanism of the additive extrusion mechanism 1, the thermoplastic materials are pushed to the left by the screw, the thermoplastic materials are converted into a molten or semi-flowing state by mechanical action and are transported to the left in the extrusion barrel 2, the molten materials may slip in the process of being pushed by the screw when the friction between the inner wall of the conveying channel and the thermoplastic materials is insufficient, the flow is blocked, the materials cannot be effectively transported to the nozzle, the materials are prone to be accumulated in the channel, and then the channel is blocked, at this time, the electromagnetic push cylinder 4 is controlled to act, the lifting translation frame 9 and the lifting push seat 6 are pushed to move upward, the structure of the dredging plug 601 and the barrel sliding bottom plate 5 is combined, the dredging plug 601 is controlled to pass through the plug guide opening 501 and be inserted into the inside of the extrusion barrel 2, the thermoplastic materials in the inside of the extrusion barrel 2 are extruded by mechanical force, the thermoplastic materials are deformed, damaged and dispersed from the original form, and the problem of blockage caused by the accumulation of thermoplastic materials is solved, and when the dredging plug 601 is inserted into the inside of the extrusion barrel 2, the screw in the inside of the extrusion barrel 2 continuously rotates, the thermoplastic materials rotate with the screw and slip in the inside of the extrusion barrel 2, at this time, the insertion of the dredging plug 601 increases the friction between the thermoplastic materials and the inner wall of the extrusion barrel 2 and stops the slip rotation, the thermoplastic materials in the inside of the extrusion barrel 2 are dredged under the extrusion of the screw.

[0037] In the embodiment of the present disclosure, the upper surface of the barrel sliding bottom plate 5 is an arc-shaped concave surface, the upper arc surface of the barrel sliding bottom plate 5 is consistent with the arc of the inner surface of the extrusion barrel 2, the lower surface of the barrel sliding bottom plate 5 is fixedly connected with a pull spring connecting plate 503, the right surface of the pull spring connecting plate 503 is fixedly connected with a bottom plate reset pull spring 504, the right end of the bottom plate reset pull spring 504 is fixedly connected with the right end of the lower surface of the extrusion barrel 2; when the dredging plug-in plate 601 is inserted between the two threads of the screw rod, the screw thread is in contact with the dredging plug-in plate 601, and the dredging plug-in plate 601 is pushed to the left, so that the barrel sliding bottom plate 5 and the lifting pusher 6 are synchronously moved to the left by a certain distance, and at the same time, the thermoplastic material in the extrusion barrel 2 is pushed for a short distance, the thermoplastic material is pushed to the left, when the left end of the barrel sliding bottom plate 5 is inserted into the left end port 203, the electromagnetic push cylinder 4 is retracted, the lifting translation frame 9 and the lifting pusher 6 are pulled downward, so that the dredging plug-in plate 601 is retracted downward to the position where the end is flush with the upper arc surface of the barrel sliding bottom plate 5, at this time, the barrel sliding bottom plate 5 is pulled to the right under the action of the pulling force of the bottom plate reset pull spring 504, and is automatically reset, so as to facilitate the continuous operation of the dredging mechanism.

[0038] In the embodiment of the present disclosure, the bottom plate sliding groove 202 is arranged on the inner wall of the butt bottom port 201, the left end port 203 and the right end port 204, the front edge and the rear edge of the barrel sliding bottom plate 5 are respectively fixedly connected with a bottom plate sliding strip 502, the bottom plate sliding strip 502 is slidingly connected with the bottom plate sliding groove 202, plays a guiding role, and can also increase the sealing performance of the edge of the barrel sliding bottom plate 5, the barrel sliding bottom plate 5 covers the bottom opening of the extrusion barrel 2, seals the extrusion barrel 2, and the setting of the left end port 203 and the right end port 204 can increase the horizontal reciprocating movement stroke range of the barrel sliding bottom plate 5.

[0039] In the embodiment of the present disclosure, two pull shaft guide rods 205 are arranged on the left side of the lower surface of the extrusion barrel 2, two pull shaft guide rods 205 are respectively slidingly connected with pull shaft sliding blocks 701, and the two pull shaft sliding blocks 701 are fixedly connected with a lifting pull shaft 7; the upper end of the pull shaft sliding block 701 is fixedly connected with a sliding block pull spring 702, the upper end of the sliding block pull spring 702 is fixedly connected with the inner side protruding plate of the pull shaft guide rod 205; the knocking gear cylinder 8 is arranged on the lifting pull shaft 7 through a ratchet pawl mechanism, the pawl in the ratchet pawl mechanism faces the clockwise direction in the front view, and the wedge-shaped teeth on the outer cylinder surface of the knocking gear cylinder 8 face the counterclockwise direction in the front view; in the normal state, the lifting pull shaft 7 and the knocking gear cylinder 8 are pulled upward by the pulling force of the sliding block pull spring 702, so that the knocking gear cylinder 8 is closely in contact with the lifting pusher 6.

[0040] In the second embodiment, on the basis of the first embodiment, the lower surface of the lifting pusher 6 is provided with a wedge-shaped tooth 604, the tip of which points to the lower right; the front surface and the rear surface of the lifting translation frame 9 are respectively provided with a rectangular slot, and the lifting translation frame 9 is parallel to the axis of the extrusion cylinder 2; the front edge and the rear edge of the lifting pusher 6 are both fixedly connected with a translation connecting rod 602, the translation connecting rod 602 is rotatably connected with two parallel translation rollers 603, and the two translation rollers 603 are respectively rotatably connected with the upper surface and the lower surface of the slot of the lifting translation frame 9; under normal circumstances, the knocking tooth cylinder 8 is attached to the lifting pusher 6 under the pulling force of the sliding block spring 702, so that the tooth-shaped structure on the outer surface of the knocking tooth cylinder 8 is attached to the wedge-shaped tooth 604; when the lifting pusher 6 and the cylinder sliding bottom plate 5 move to the left under the pushing of the screw, the knocking tooth cylinder 8 slides to the left along the wedge-shaped tooth 604, at this time, the ratchet and pawl mechanism is in the locked state, and the outer teeth of the knocking tooth cylinder 8 slide to the left along the wedge-shaped tooth 604, and move downward under the action of the slope; when the two teeth are separated, the knocking tooth cylinder 8 quickly moves upward under the pulling force of the sliding block spring 702 and collides with the wedge-shaped tooth 604, thereby knocking the lifting pusher 6 and transmitting the knocking to the dredging plug plate 601, so that the hot plastic material in the extrusion cylinder 2 is vibrated through the vibration of the dredging plug plate 601, so as to accelerate the decomposition and mixing of the hot plastic material; when the cylinder sliding bottom plate 5 and the lifting pusher 6 move to the right and reset, the knocking tooth cylinder 8 is in rolling connection with the wedge-shaped tooth 604, the ratchet and pawl mechanism is movable, the locking of the lifting pusher 6 is released, and the lifting pusher 6 is quickly reset.

[0041] The working principle of the embodiment is as follows: first, the bamboo charcoal polyester fiber material enters the inside of the extrusion barrel 2 through the hopper, the screw is rotated by the driving mechanism of the additive extrusion mechanism 1, the bamboo charcoal polyester fiber is pushed to the left by the screw, the bamboo charcoal polyester fiber is converted into a molten or semi-flowing state that can be stacked layer by layer and is conveyed to the left inside the extrusion barrel 2, when the bamboo charcoal polyester fiber is adhered to the extrusion barrel 2 and the friction between the inner wall of the conveying channel and the bamboo charcoal polyester fiber is insufficient, the bamboo charcoal polyester fiber slips during the screw advancing process, causing flow obstruction and blockage, the lifting translation frame 9 and the lifting push seat 6 are pushed up by the electromagnetic push cylinder 4, the structure of the dredging plug plate 601 and the barrel sliding bottom plate 5 is combined, the dredging plug plate 601 passes through the plug plate guide opening 501 and is inserted into the inside of the extrusion barrel 2, the bamboo charcoal polyester fiber inside the extrusion barrel 2 is extruded by mechanical force, the bamboo charcoal polyester fiber is deformed and damaged and the original form is dispersed, when the screw in the extrusion barrel 2 continues to rotate, the bamboo charcoal polyester fiber rotates with the screw and slips in the inside of the extrusion barrel 2, the friction between the bamboo charcoal polyester fiber and the inner wall of the extrusion barrel 2 is increased by the insertion of the dredging plug plate 601 and the slipping rotation is stopped, the bamboo charcoal polyester fiber returns to the flowing state under the extrusion of the screw, the screw restores the pushing of the bamboo charcoal polyester fiber, at this time, the dredging plug plate 601 is inserted between the two threads of the screw, the screw thread contacts the dredging plug plate 601 and pushes it to the left with the rotation of the screw, the barrel sliding bottom plate 5 and the lifting push seat 6 move to the left by a certain distance at the same time, the bamboo charcoal polyester fiber inside the extrusion barrel 2 is pushed for a short distance, the bamboo charcoal polyester fiber is conveyed to the left inside the extrusion barrel 2, in this process, the knocking gear cylinder 8 is attached to the lifting push seat 6 under the tension of the sliding block tension spring 702, the tooth-shaped structure on the outer surface of the knocking gear cylinder 8 is attached to the wedge-shaped pawl 604, when the lifting push seat 6 moves to the left, the knocking gear cylinder 8 slides to the left along the wedge-shaped pawl 604, at this time, the ratchet and pawl mechanism is in the locked state, the outer teeth of the knocking gear cylinder 8 move downward under the action of the slope during the leftward sliding process along the wedge-shaped pawl 604, and when the two teeth are separated, the knocking gear cylinder 8 quickly moves up under the tension of the sliding block tension spring 702 and collides with the wedge-shaped pawl 604, the lifting push seat 6 is knocked and the knocking is transmitted to the dredging plug plate 601, the bamboo charcoal polyester fiber material inside the extrusion barrel 2 is vibrated by the vibration of the dredging plug plate 601, which promotes the decomposition and mixing of the bamboo charcoal polyester fiber material, and when the barrel sliding bottom plate 5 moves to the left end limit position, the lifting push seat 6 is pulled down by the electromagnetic push cylinder 4, the dredging plug plate 601 is contracted downward, the barrel sliding bottom plate 5 is moved to the right under the tension of the bottom plate reset tension spring 504, the knocking gear cylinder 8 is in rolling connection with the wedge-shaped pawl 604, the ratchet and pawl mechanism is movable, the lifting push seat 6 is unlocked, the lifting push seat 6 is quickly reset, the barrel sliding bottom plate 5 and the lifting push seat 6 are reset, and the single auxiliary dredging of the extrusion barrel 2 is completed.

[0042] In this paper, the following points need to be noted:

[0043] 1. The drawings in the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can be referred to the general design.

[0044] 2. In the case of no conflict, the embodiments and features in the embodiments of the present disclosure can be combined to obtain new embodiments.

[0045] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A screw extrusion additive device with anti-blocking function, comprising: Additive extrusion mechanism (1), the additive extrusion mechanism (1) inside drive mechanism connection and drive screw, the additive extrusion mechanism (1) left end fixedly connected with extrusion cylinder (2), the extrusion cylinder (2) outside fixedly connected with heater (3), characterized in that, the additive extrusion mechanism (1) bottom plate upper surface fixedly connected with two electromagnetic push cylinder (4), the upper end of electromagnetic push cylinder (4) is fixedly connected with lifting translation frame (9), the lower extrusion cylinder (2) is provided with docking bottom mouth (201), the left end of docking bottom mouth (201) extends to the left side of the cavity of extrusion cylinder (2) and forms left end socket (203), the right end of docking bottom mouth (201) extends to the right side of the cavity of extrusion cylinder (2) and forms right end socket (204), the inside of docking bottom mouth (201) is slidably connected with cylinder sliding bottom plate (5), the lower part of cylinder sliding bottom plate (5) is equipped with lifting push seat (6), cylinder sliding bottom plate (5) is provided with plug-in plate guide (501) through, the upper part of lifting push seat (6) is fixedly connected with dredging plug-in plate (601), and dredging plug-in plate (601) is slidably inserted into plug-in plate guide (501), the lower part of lifting push seat (6) is movably connected with lifting translation frame (9), lifting translation frame (9) is installed on the upper end of electromagnetic push cylinder (4) push rod, the lower surface of cylinder sliding bottom plate (5) is fixedly connected with tension spring connecting plate (503), the right surface of tension spring connecting plate (503) is fixedly connected with bottom plate reset tension spring (504), and the right end of bottom plate reset tension spring (504) is fixedly connected with the lower surface right end of extrusion cylinder (2).

2. The screw extrusion additive equipment with anti-blocking function according to claim 1, wherein, bottom plate sliding grooves (202) are formed on the inner walls of the docking bottom mouth (201), the left end socket (203) and the right end socket (204), and the front edge and the rear edge of the cylinder sliding bottom plate (5) are respectively fixedly connected with bottom plate sliding strips (502) which are slidably connected with the bottom plate sliding grooves (202).

3. The screw extrusion additive equipment with anti-blocking function according to claim 2, wherein, two tension shaft guide rods (205) are installed on the left side of the lower surface of the extrusion cylinder (2), and two tension shaft guide rods (205) are respectively slidably connected with tension shaft sliding blocks (701), and a lifting tension shaft (7) is fixedly connected between the two tension shaft sliding blocks (701).

4. The screw extrusion additive equipment with anti-blocking function according to claim 3, wherein, a sliding block tension spring (702) is fixedly connected to the upper end of the tension shaft sliding block (701), and the upper end of the sliding block tension spring (702) is fixedly connected to the inner side protruding plate of the tension shaft guide rod (205).

5. The screw extrusion additive equipment with anti-blocking function according to claim 4, wherein, a knocking gear cylinder (8) is installed on the lifting tension shaft (7) through a ratchet and pawl mechanism, the pawl of the ratchet and pawl mechanism faces the clockwise direction in the front view, and the wedge-shaped teeth of the knocking gear cylinder (8) are provided with wedge-shaped teeth, and the sharp ends of the wedge-shaped teeth face the counterclockwise direction in the front view.

6. The screw extrusion additive equipment with anti-blocking function according to claim 5, characterized in that, The lower surface of the lifting pusher (6) is provided with a wedge-shaped tooth (604) at the left end, and the tip of the wedge-shaped tooth (604) faces the lower right.

7. The screw extrusion additive equipment with anti-blocking function according to claim 1, characterized in that, The upper surface of the barrel sliding bottom plate (5) is arc-shaped concave, and the upper arc surface of the barrel sliding bottom plate (5) is consistent with the curvature of the inner surface of the extrusion barrel (2).

8. The screw extrusion additive equipment with anti-blocking function according to claim 1, characterized in that, The front surface and the rear surface of the lifting translation frame (9) are respectively provided with rectangular grooves, and the lifting translation frame (9) is parallel to the axis of the extrusion barrel (2).

9. The screw extrusion additive equipment with anti-blocking function according to claim 8, characterized in that, The front edge and the rear edge of the lifting pusher (6) are both fixedly connected with a translation connecting rod (602), the translation connecting rod (602) is rotationally connected with two parallel translation rollers (603), and the two translation rollers (603) are respectively rollingly connected with the upper surface and the lower surface of the groove body of the lifting translation frame (9).

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