Vacuum screw extruder

Abstract

The invention relates to the technical field of screw extruder equipment, and discloses a vacuum screw extruder which comprises a base, a clamping rotating mechanism is fixedly connected to the middle of the top of the base, a pushing mechanism is fixedly connected to the left end of the top of the base, and a thread mechanism is fixedly connected to the right end of the top of the base; and the driving assembly comprises a T-shaped seat, the T-shaped seat is fixedly connected to the middle of the top of the base, a T-shaped plate is fixedly connected to the right side of the T-shaped seat, a gear ring is fixedly connected to the surface of the left end of the surface of the T-shaped plate, and a first gear is connected to the upper surface of the gear ring in an engaged mode. According to the vacuum screw extruder, through the arranged clamping and rotating mechanism, clamping wheels are finally driven to conduct clamping operation on the surface of a screw when moving, and finally the screw can be conveniently moved and rotated, so that a thread line can be extruded and formed by combining the effect of a thread carving strip; and corresponding clamping, rotating and adjusting effects can be achieved according to threads of different sizes.

Description

Technical Field

[0001] The invention relates to the technical field of screw extruder equipment, in particular to a vacuum screw extruder. Background Art

[0002] Screw extruder is a kind of mechanical equipment widely used in plastic processing production lines. It melts plastic and extrude it into products of various shapes through the rotation and thrust of the screw. Due to its good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and other characteristics, it has been widely used in the molding processing of extruded products.

[0003] According to the screw forming processing machine disclosed in announcement number CN215846139U, it includes a fixed base plate, a feeding component, a forming component and a limiting component. A bearing platform is installed on the top of the fixed base plate. The feeding component and the forming component are arranged at intervals on the top of the fixed base plate. Two limiting components are provided, and the two limiting components are symmetrically arranged on both sides of the bearing platform.

[0004] During operation, the screw forming machine can prevent angle deviation during screw processing by cooperating with the support platform and two limit components, thereby improving the processing quality of the screw. However, it is not convenient to adjust the size of the workpiece to be processed and fed, so the device needs to be improved accordingly. Summary of the invention

[0005] The object of the present invention is to provide a vacuum screw extruder to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a vacuum screw extruder, comprising a base, a clamping and rotating mechanism is fixedly connected to the middle of the top of the base, a pushing mechanism is fixedly connected to the left end of the top of the base, and a threaded mechanism is fixedly connected to the right end of the top of the base; The clamping and rotating mechanism comprises a driving assembly and a clamping assembly, wherein the clamping assembly is arranged on one side of the driving assembly; The driving assembly includes a T-shaped seat, which is fixedly connected to the middle of the top of the base, a T-shaped plate is fixedly connected to the right side of the T-shaped seat, a gear ring is fixedly connected to the left end surface of the T-shaped plate, a first gear is meshedly connected to the upper surface of the gear ring, a long rod is fixedly connected inside the first gear, a support plate is rotatably connected to the surface of the long rod, and the bottom end of the support plate is fixedly connected to the top of the T-shaped seat.

[0007] According to the above technical solution, a through hole is provided inside the support plate, and the surface of the long rod passes through the through hole provided inside the support plate.

[0008] According to the above technical scheme, the clamping assembly includes an inclined plate, which is fixedly connected to the right side of the T-shaped plate, and an inclined clamping block is slidably connected inside the inclined plate, and a rectangular bar is fixedly connected inside the inclined clamping block, one end of the rectangular bar is fixedly connected to the U-shaped plate, and a clamping wheel is rotatably connected inside the U-shaped plate, and the upper and lower ends of the inclined clamping block are respectively fixedly connected to L-shaped rods, one end of the L-shaped rod is fixedly connected to a slider, the surface of the slider is slidably connected to a cross seat, one side of the surface of the cross seat is fixedly connected to a sliding bar, one end of the sliding bar is fixedly connected to an electric push rod, one end of the electric push rod is fixedly connected to a sliding seat, and one end of the sliding seat is fixedly connected to one side of the T-shaped plate.

[0009] According to the above technical solution, a guide groove is provided inside the horizontal seat, the surface of the slider is slidably connected to the inside of the guide groove, a slide groove is provided inside the slide seat, and the surface of the slide bar is slidably connected to the inside of the slide groove.

[0010] According to the above technical solution, an inclined groove is provided inside the inclined plate, the surface of the inclined clamping block is slidably connected to the inside of the inclined groove, and four inclined plates are symmetrically distributed on the right side of the T-shaped plate.

[0011] The top end of the top frame is fixedly connected to the left end of the clamping seat, and the top end of the top frame is rotatably connected to the left end of the long rod surface, and the left end of the long rod surface is fixedly connected to a transmission wheel, and the two transmission wheel surfaces are transmission-connected with a transmission belt.

[0012] According to the above technical solution, a groove is opened inside the base plate, the L-shaped seat surface is slidably connected to the inside of the groove, a sliding cavity is opened in the middle of the base plate, the threaded plate surface is slidably connected to the inside of the sliding cavity, and one end of the screw rod is rotatably connected to one end inside the sliding cavity.

[0013] According to the above technical solution, a limiting groove is provided inside the portal frame, and the surface of the sliding member is slidably connected to the inside of the limiting groove.

[0014] According to the above technical solution, the threaded mechanism includes a support frame, the support frame is fixedly connected to the top of the base, the right end of the support frame is fixedly connected to a second motor, the left end of the second motor is fixedly connected to an electric pole, the left end of the electric pole is fixedly connected to a second gear, the surface of the second gear is meshingly connected to a rack, the bottom end of the rack is fixedly connected to a connecting plate, the front and rear ends of the connecting plate are respectively fixedly connected to T-shaped blocks, and the bottom end of the connecting plate is fixedly connected to a threaded engraved strip.

[0015] According to the above technical solution, two through holes are provided in the middle of the support frame, the surface of the threaded strip passes through the two through holes provided in the middle of the support frame, a circular groove is provided in the top of the support frame, the surface of the second gear is located in the circular groove, a straight groove is provided in the top of the support frame, the surface of the rack is slidably connected to the inside of the straight groove, limiting grooves are provided on both sides of the support frame, and the surface of the T-shaped block is slidably connected to the inside of the limiting groove.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The vacuum screw extruder, through the clamping and rotating mechanism, the oblique clamping block moves under the track limit of the oblique groove opened inside the oblique plate, and correspondingly drives the rectangular bar and the U-shaped plate connected at one end to move, and finally drives the clamping wheel to clamp the surface of the screw while moving, so that the movement and rotation of the screw can be conveniently performed, so that the thread line can be extruded and formed in combination with the effect of the thread engraving strip, and the corresponding clamping and rotating adjustment effect can be performed according to threads of different sizes.

[0017] 2. The vacuum screw extruder, through the setting of the clamping and rotating mechanism, the long rod rotates under the support of the support plate, thereby driving the first gear and the gear ring to rotate, and thereby driving the T-shaped seat to rotate under the support of the T-shaped seat, and then correspondingly driving the clamping wheel to rotate the clamped screw, and can move and rotate at the same time, so that the feeding operation of the screw can be convenient.

[0018] 3. The vacuum screw extruder, through the setting of the pushing mechanism, the connecting strip moves and drives the insertion rod to move under the limit inside the clamp seat, and drives the semicircular piece to clamp the screw accordingly when it moves. In addition, when the screw is processed and the material is fed, the first motor starts to drive the lead screw to rotate inside the bottom plate, and then drives the threaded plate to move the L-shaped seat under the blind limit inside the bottom plate, thereby driving the clamp seat to move and finally driving the door frame and the semicircular piece to move, and then driving the screw to perform corresponding feeding operations when it moves.

[0019] 4. The vacuum screw extruder, through the threaded mechanism, drives the rack to move up and down under the support of the support frame while the second gear rotates, so that the connecting plate can be driven to move downward under the support of the side of the support frame using the T-shaped blocks on both sides, and the threaded engraving strip can be driven to move to the surface of the screw to form the thread line, and corresponding forming operations can be performed according to the sizes of different screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a three-dimensional diagram of the structure of the present invention; Figure 2 A three-dimensional diagram of the structure clamping and rotating mechanism of the present invention; Figure 3 This is a three-dimensional exploded view of the structural drive assembly of the present invention; Figure 4 This is a three-dimensional exploded view of the structural clamping assembly of the present invention; Figure 5 A three-dimensional disassembly diagram of the parts of the structural clamping assembly of the present invention; Figure 6 Two three-dimensional disassembly diagrams of the parts of the structural clamping assembly of the present invention; Figure 7 This is a three-dimensional diagram of the material pushing mechanism of the structure of the present invention; Figure 8 This is a three-dimensional exploded view of the pusher mechanism of the structure of the present invention; Fig. 9 This is a three-dimensional exploded view of the parts of the pusher mechanism of the present invention; Fig.10 It is a three-dimensional exploded view of the threaded mechanism of the structure of the present invention.

[0021] In the figure: 1, base; 2, clamping and rotating mechanism; 21, driving assembly; 211, T-shaped seat; 212, T-shaped plate; 213, gear ring; 214, first gear; 215, support plate; 216, long rod; 22, clamping assembly; 221, inclined plate; 222, inclined clamping block; 223, rectangular bar; 224, U-shaped plate; 225, clamping wheel; 2251, L-shaped rod; 226, slider; 227, horizontal seat; 228, slide bar; 2281, electric push rod; 229, slide seat; 3, pushing mechanism; 31, Base plate; 32, L-shaped seat; 321, first motor; 33, threaded plate; 34, clamp seat; 341, plug rod; 342, connecting strip; 343, rectangular rod; 344, slide; 35, bidirectional screw; 36, door frame; 37, semicircular piece; 38, screw rod; 39, top frame; 391, transmission wheel; 392, transmission belt; 4, threaded mechanism; 41, support frame; 42, second motor; 43, electric pole; 44, second gear; 45, rack; 46, connecting plate; 47, T-shaped block; 48, threaded engraved strip. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The present invention provides the following technical solutions: Embodiment 1

[0024] Combination Figures 2 to 10 A vacuum screw extruder comprises a base 1, a clamping and rotating mechanism 2 is fixedly connected to the middle of the top of the base 1, a pushing mechanism 3 is fixedly connected to the left end of the top of the base 1, and a threaded mechanism 4 is fixedly connected to the right end of the top of the base 1; The clamping and rotating mechanism 2 includes a driving component 21 and a clamping component 22, and the clamping component 22 is arranged on one side of the driving component 21; The driving assembly 21 includes a T-shaped seat 211, which is fixedly connected to the middle of the top of the base 1. A T-shaped plate 212 is fixedly connected to the right side of the T-shaped seat 211. A toothed ring 213 is fixedly connected to the left end surface of the surface of the T-shaped plate 212. The upper surface of the toothed ring 213 is meshed with a first gear 214. A long rod 216 is fixedly connected inside the first gear 214. A support plate 215 is rotatably connected to the surface of the long rod 216. The bottom end of the support plate 215 is fixedly connected to the top of the T-shaped seat 211. A through hole is provided inside the support plate 215. The surface of the long rod 216 penetrates through the through hole provided inside the support plate 215. The clamping assembly 22 includes an inclined plate 221, which is fixedly connected to the T-shaped plate 211. On the right side, an oblique clamping block 222 is slidably connected inside the oblique plate 221, a rectangular bar 223 is fixedly connected inside the oblique clamping block 222, one end of the rectangular bar 223 is fixedly connected to a U-shaped plate 224, a clamping wheel 225 is rotatably connected inside the U-shaped plate 224, upper and lower ends of the oblique clamping block 222 are respectively fixedly connected to an L-shaped rod 2251, one end of the L-shaped rod 2251 is fixedly connected to a slider 226, a cross seat 227 is slidably connected to the surface of the slider 226, one side of the surface of the cross seat 227 is fixedly connected to a slide bar 228, one end of the slide bar 228 is fixedly connected to an electric push rod 2281, one end of the electric push rod 2281 is fixedly connected to a slide seat 229, and one end of the slide seat 229 is fixedly connected to one side of the T-shaped plate 212.

[0025] Furthermore, a guide groove is provided inside the cross seat 227, the surface of the slider 226 is slidably connected to the inside of the guide groove, a slide groove is provided inside the slide seat 229, the surface of the slide bar 228 is slidably connected to the inside of the slide groove, an inclined groove is provided inside the inclined plate 221, the surface of the inclined block 222 is slidably connected to the inside of the inclined groove, four inclined plates 221 are symmetrically distributed on the right side of the T-shaped plate 212, and the long rod 216 rotates under the support of the support plate 215, thereby driving the first gear 214 and the gear ring 213 to rotate, and thereby driving the T-shaped seat 211 to rotate under the support of the T-shaped seat 211, and then correspondingly driving the clamping wheel 225 to rotate the clamped screw, and can be moved and rotated at the same time, thereby facilitating the feeding operation of the screw. Embodiment 2

[0026] See also Figure 1-10On the basis of the first embodiment, the pushing mechanism 3 further comprises a bottom plate 31, the bottom plate 31 is fixedly connected to the left end of the top of the base 1, an L-shaped seat 32 is fixedly connected to the left end of the bottom plate 31, a first motor 321 is fixedly connected to the left side of the L-shaped seat 32, a screw rod 38 is fixedly connected to the right end of the first motor 321, a threaded plate 33 is threadedly connected to the surface of the screw rod 38, both sides of the threaded plate 33 are respectively fixedly connected to the L-shaped seat 32, a clamping seat 34 is fixedly connected to the top of the L-shaped seat 32, an insert rod 341 is slidably connected to the inside of the clamping seat 34, one end of the insert rod 341 is fixedly connected to the connecting strip 342, and the top of the connecting strip 342 is fixedly connected to the inside of the connecting strip 342. A rectangular rod 343 is fixedly connected to the top of the bottom plate 31, one end of the rectangular rod 343 is fixedly connected to a slide 344, the top of the slide 344 is internally threadedly connected to a bidirectional screw 35, the surface of the bidirectional screw 35 is rotatably connected to a door frame 36, the bottom end of the door frame 36 is fixedly connected to the top of the clamp seat 34, one end of the insertion rod 341 is fixedly connected to a semicircular piece 37, the left end of the top of the bottom plate 31 is fixedly connected to a top frame 39, the top of the top frame 39 is rotatably connected to the left end of the long rod 216, the left end of the long rod 216 and the left end of the screw rod 38 are fixedly connected to a transmission wheel 391, and the surfaces of the two transmission wheels 391 are transmission connected with transmission belts 392.

[0027] Furthermore, a groove is provided inside the bottom plate 31, and the surface of the L-shaped seat 32 is slidably connected to the inside of the groove. A sliding cavity is provided in the middle of the bottom plate 31, and the surface of the threaded plate 33 is slidably connected to the inside of the sliding cavity. One end of the screw rod 38 is rotatably connected to one end inside the sliding cavity. A limiting groove is provided inside the door frame 36, and the surface of the sliding piece 344 is slidably connected to the inside of the limiting groove. The connecting strip 342 moves and drives the insertion rod 341 to move under the limit inside the clamp seat 34, and drives the semicircular piece 37 to clamp the screw rod accordingly when it moves. In addition, when the screw rod is processed, when feeding is performed, the first motor 321 is started to drive the screw rod 38 to rotate inside the bottom plate 31, and then drives the threaded plate 33 to drive the L-shaped seat 32 to move under the blind limit in the bottom plate 31, thereby driving the clamp seat 34 to move and finally driving the door frame 36 and the semicircular piece 37 to move, and then driving the screw rod to perform corresponding feeding operations when it moves. Embodiment 3

[0028] See also Figure 1-10 On the basis of the first embodiment, the thread mechanism 4 further comprises a support frame 41, the support frame 41 is fixedly connected to the top of the base 1, the right end of the support frame 41 is fixedly connected to a second motor 42, the left end of the second motor 42 is fixedly connected to an electric pole 43, the left end of the electric pole 43 is fixedly connected to a second gear 44, the surface of the second gear 44 is meshingly connected to a rack 45, the bottom end of the rack 45 is fixedly connected to a connecting plate 46, the front and rear ends of the connecting plate 46 are respectively fixedly connected to T-shaped blocks 47, and the bottom end of the connecting plate 46 is fixedly connected to a threaded engraved strip 48.

[0029] Furthermore, a second through hole is provided in the middle of the support frame 41, and the surface of the threaded strip 48 passes through the second through hole provided in the middle of the support frame 41, a circular groove is provided in the top of the support frame 41, and the surface of the second gear 44 is located inside the circular groove. A straight groove is provided inside the top of the support frame 41, and the surface of the rack 45 is slidably connected to the inside of the straight groove. Limiting grooves are provided on both sides of the support frame 41, and the surface of the T-block 47 is slidably connected to the inside of the limiting groove. When the second gear 44 rotates, it drives the rack 45 to perform height lifting and lowering under the support of the support frame 41, thereby driving the connecting plate 46 to move downward under the support of the side of the support frame 41 using the T-blocks 47 on both sides, and drives the threaded strip 48 to move to the surface of the screw to form the thread line, and can perform corresponding forming operations according to the sizes of different screws.

[0030] In actual operation, when this device is used, when extruding the screw, the screw is first clamped and fed, and the left end of the screw to be processed is attached to the right side of the semicircular member 37, and then the bidirectional screw 35 is rotated to rotate accordingly under the limit position inside the door frame 36, and then the sliding members 344 connected to the two ends of its surface are respectively driven to slide accordingly under the limit position inside the door frame 36, so that the rectangular rod 343 can be driven to move, the connecting strip 342 can be driven to move, and the insertion rod 341 can be driven to move in the clamp seat 34. The first motor 321 is started to drive the screw rod 38 to rotate inside the bottom plate 31, and then the threaded plate 33 drives the L-shaped seat 32 to move under the blind limit of the bottom plate 31, so as to drive the clamping seat 34 to move and finally drive the door frame 36 and the semicircular member 37 to move, and then drive the screw rod to perform the corresponding feeding operation when it moves; In addition, when feeding and processing are performed, the surface of the workpiece to be processed needs to be rotated accordingly. At this time, when the first motor 321 drives the screw rod 38 to rotate, it can drive the transmission wheel 391 and the transmission belt 392 to rotate, and then drive the long rod 216 to rotate under the support of the support plate 215, so as to drive the first gear 214 and the gear ring 213 to rotate, and thus drive the T-shaped seat 211 to rotate under the support of the T-shaped seat 211, and then drive the clamping wheel 225 to rotate the clamped screw rod, and can move and rotate at the same time, so as to facilitate the feeding operation of the screw rod; When rotating and clamping, the electric push rod 2281 inside the slide 229 works and drives the slide bar 228 to slide accordingly under the limit inside the slide 229, so that the slide bar 228 can be driven to slide in the cross seat 227, and the cross seat 227 can be driven to move accordingly, and then the L-shaped rod 2251 can be driven to move, and then the inclined clamping block 222 can be driven to move under the track limit of the inclined groove opened in the inclined plate 221, and the rectangular bar 223 and the U-shaped plate 224 connected at one end can be driven to move accordingly, and finally the clamping wheel 225 can be driven to clamp the surface of the screw when moving, and finally the movement and rotation of the screw can be conveniently performed, so that the thread line can be extruded and formed in combination with the effect of the thread engraving strip 48, and the clamping and rotation adjustment effect can be performed according to threads of different sizes; In addition, when the spiral extrusion molding of the screw is performed, the second motor 42 drives the electric pole 43 to rotate accordingly under the support of the support frame 41, and then drives the second gear 44 to rotate while driving the rack 45 to perform height lifting and lowering under the support of the support frame 41, thereby driving the connecting plate 46 to move downward with the support of the side of the support frame 41 using the T-shaped blocks 47 on both sides, and drives the thread engraving strip 48 to move to the surface of the screw to form the thread line, and can perform corresponding molding operations according to the sizes of different screws.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vacuum screw extruder, comprising a base (1), characterized in that: A clamping and rotating mechanism (2) is fixedly connected to the middle of the top of the base (1), a material pushing mechanism (3) is fixedly connected to the left end of the top of the base (1), and a threaded mechanism (4) is fixedly connected to the right end of the top of the base (1); The clamping and rotating mechanism (2) comprises a driving assembly (21) and a clamping assembly (22), wherein the clamping assembly (22) is arranged on one side of the driving assembly (21); The driving assembly (21) comprises a T-shaped seat (211), the T-shaped seat (211) being fixedly connected to the middle of the top of the base (1), a T-shaped plate (212) being fixedly connected to the right side of the T-shaped seat (211), a toothed ring (213) being fixedly connected to the left end surface of the surface of the T-shaped plate (212), a first gear (214) being meshingly connected to the upper surface of the toothed ring (213), a long rod (216) being fixedly connected inside the first gear (214), a support plate (215) being rotatably connected to the surface of the long rod (216), and a bottom end of the support plate (215) being fixedly connected to the top of the T-shaped seat (211).

2. A vacuum screw extruder according to claim 1, characterized in that: A through hole is provided inside the support plate (215), and a surface of the long rod (216) passes through the through hole provided inside the support plate (215).

3. A vacuum screw extruder according to claim 2, characterized in that: The clamping assembly (22) comprises an inclined plate (221), the inclined plate (221) being fixedly connected to the right side of the T-shaped plate (212), an inclined clamping block (222) being slidably connected inside the inclined plate (221), a rectangular bar (223) being fixedly connected inside the inclined clamping block (222), one end of the rectangular bar (223) being fixedly connected to a U-shaped plate (224), a clamping wheel (225) being rotatably connected inside the U-shaped plate (224), and the upper and lower ends of the inclined clamping block (222) being fixedly connected to the U-shaped plate (224). An L-shaped rod (2251) is connected, one end of the L-shaped rod (2251) is fixedly connected to a slider (226), the surface of the slider (226) is slidably connected to a cross seat (227), one side of the surface of the cross seat (227) is fixedly connected to a slide bar (228), one end of the slide bar (228) is fixedly connected to an electric push rod (2281), one end of the electric push rod (2281) is fixedly connected to a slide seat (229), and one end of the slide seat (229) is fixedly connected to one side of the T-shaped plate (212).

4. A vacuum screw extruder according to claim 3, characterized in that: A guide groove is provided inside the cross seat (227), and the surface of the sliding block (226) is slidably connected to the inside of the guide groove. A slide groove is provided inside the sliding seat (229), and the surface of the sliding bar (228) is slidably connected to the inside of the slide groove.

5. A vacuum screw extruder according to claim 4, characterized in that: An inclined groove is provided inside the inclined plate (221), and the surface of the inclined clamping block (222) is slidably connected to the inside of the inclined groove. Four inclined plates (221) are symmetrically distributed on the right side of the T-shaped plate (212).

6. A vacuum screw extruder according to claim 5, characterized in that: The pushing mechanism (3) comprises a bottom plate (31), the bottom plate (31) being fixedly connected to the left end of the top of the base (1), the left end of the bottom plate (31) being fixedly connected to an L-shaped seat (32), the left side of the L-shaped seat (32) being fixedly connected to a first motor (321), the right end of the first motor (321) being fixedly connected to a screw rod (38), the surface of the screw rod (38) being threadedly connected to a threaded plate (33), both sides of the threaded plate (33) being fixedly connected to the L-shaped seat (32), the top of the L-shaped seat (32) being fixedly connected to a clamping seat (34), the inside of the clamping seat (34) being slidably connected to an insert rod (341), one end of the insert rod (341) being fixedly connected to a connecting strip (342), the top of the connecting strip (342) being fixedly connected to an insert rod (341), A rectangular rod (343), one end of the rectangular rod (343) is fixedly connected to a slide (344), the top end of the slide (344) is internally threadedly connected to a bidirectional screw (35), the surface of the bidirectional screw (35) is rotatably connected to a door frame (36), the bottom end of the door frame (36) is fixedly connected to the top of the clamp seat (34), one end of the insertion rod (341) is fixedly connected to a semicircular piece (37), the top left end of the bottom plate (31) is fixedly connected to a top frame (39), the top of the top frame (39) is internally rotatably connected to the left end of the surface of the long rod (216), the left end of the surface of the long rod (216) and the left end of the surface of the screw rod (38) are fixedly connected to a transmission wheel (391), and the surfaces of the two transmission wheels (391) are transmission-connected to a transmission belt (392).

7. A vacuum screw extruder according to claim 6, characterized in that: A slot is provided inside the bottom plate (31), a surface of the L-shaped seat (32) is slidably connected to the inside of the slot, a sliding cavity is provided in the middle of the bottom plate (31), a surface of the threaded plate (33) is slidably connected to the inside of the sliding cavity, and one end of the screw rod (38) is rotatably connected to one end inside the sliding cavity.

8. A vacuum screw extruder according to claim 7, characterized in that: A limiting groove is provided inside the door frame (36), and the surface of the sliding member (344) is slidably connected to the inside of the limiting groove.

9. A vacuum screw extruder according to claim 8, characterized in that: The thread mechanism (4) comprises a support frame (41), the support frame (41) being fixedly connected to the top of the base (1), the right end of the support frame (41) being fixedly connected to a second motor (42), the left end of the second motor (42) being fixedly connected to an electric pole (43), the left end of the electric pole (43) being fixedly connected to a second gear (44), the surface of the second gear (44) being meshingly connected to a rack (45), the bottom end of the rack (45) being fixedly connected to a connecting plate (46), the front and rear ends of the connecting plate (46) being fixedly connected to T-shaped blocks (47), and the bottom end of the connecting plate (46) being fixedly connected to a threaded engraved strip (48).

10. A vacuum screw extruder according to claim 9, characterized in that: A second through hole is provided in the middle of the support frame (41), the surface of the threaded strip (48) passes through the second through hole provided in the middle of the support frame (41), a circular groove is provided in the top of the support frame (41), the surface of the second gear (44) is located in the circular groove, a straight groove is provided in the top of the support frame (41), the surface of the rack (45) is slidably connected to the inside of the straight groove, limiting grooves are provided on both sides of the support frame (41), and the surface of the T-shaped block (47) is slidably connected to the inside of the limiting groove.

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