Electric screw press
By designing splash protection structure and automatic cleaning function on the electric spiral press, the problem of difficult fragment splashing and cleaning is solved, and safety and efficiency are improved.
Patent Information
- Application Number
- CN202510854801.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-25
- Publication Date
- 2025-07-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When conducting a compression resistance experiment by the electric spiral press, the concrete blocks were crushed and the fragments splashed and injured people, and it was difficult to clean them. The existing technology could not effectively protect and automatically clean them.
A splash-proof structure is designed, including a flipped protective enclosure and an inclined automatic cleaning function. The lifting parts drive the toggle lever and roller to move in the circulation adjustment groove in one direction, realizing automatic gathering and discharge of fragments. Combining the actions of the flip baffle and cover plate, the automatic pouring and centralized collection of fragments is achieved.
It effectively avoids splashing and injuring people, simplifies the cleaning process, and improves the safety of use and equipment performance.
Smart Images
Figure CN120363526A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of presses, in particular to an electric screw press. Background Art
[0002] The electric screw press is an advanced pressure processing equipment that uses a motor to drive the screw-nut mechanism to generate strong pressure. Compared with traditional presses, the electric screw press has higher efficiency, more precise control and more environmentally friendly characteristics. The motor drive replaces the hydraulic or friction drive to achieve effective energy utilization. Through servo or frequency conversion control, the speed, position and impact energy of the slider can be accurately adjusted to meet different processing requirements, such as forging, stamping, pressing, etc. It has a compact structure and is easy to integrate with automation. It is widely used in the automotive, aviation, machinery and other industries. It is an important equipment for achieving efficient, precise and intelligent manufacturing.
[0003] Some electric screw presses used for testing, such as building concrete test blocks, are used for compression tests. Concrete blocks will be crushed during compression tests on electric screw presses. The concrete blocks will be crushed under the strong pressure of the press. At the same time, the crushed concrete blocks will splash and injure people, and concrete fragments will remain on the press. Cleaning work is required after the experiment. Therefore, improvements are needed to address the above problems. Summary of the invention
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electric screw press comprises a frame, a workbench is fixedly installed at the bottom of the frame, a rotatable and adjustable base is installed on the top of the workbench, a protective enclosure is fixedly installed on the top of the base, a lifting component is installed on the top of the frame, a pressure block is fixedly installed on the bottom of the lifting component, vertical plates are fixedly installed on both sides of the bottom of the frame, a main transmission component is connected between the lower part of the lifting component and the two vertical plates, the main transmission component is connected to the base in driving connection, a rotatable and adjustable cover plate is installed on the top of the protective enclosure, an extrusion through-hole aligned with the pressure block in the middle of the cover plate, and a rotatable and adjustable baffle is installed inside the protective enclosure.
[0005] Preferably, the main transmission component includes a fixed block fixedly installed at the lower part of the lifting component, one end of the fixed block is penetrated by a connecting shaft for rotation, both ends of the connecting shaft are fixedly connected with connecting rods, and both sides of the connecting shaft are sleeved with torsion springs, the two ends of the torsion spring are respectively fixedly connected to the fixed block and the connecting rod, and a toggle rod is fixedly connected between the lower parts of the two connecting rods.
[0006] Preferably, circulation adjustment grooves are provided on opposite sides of the two vertical plates, and rollers located inside the two circulation adjustment grooves are installed at both ends of the toggle rod.
[0007] Preferably, inverted convex-shaped inner grooves are provided at the upper parts of the two circulation adjustment grooves. Inverted convex-shaped limit blocks are movably inserted into the inverted convex-shaped inner grooves. One end of the inverted convex-shaped limit block extends into the circulation adjustment groove, and a first spring is fixedly installed between the other end of the inverted convex-shaped limit block and the inside of the inverted convex-shaped inner groove. An expansion groove is provided at the top of the end of the inverted convex-shaped inner groove, and a pressing block located inside the expansion groove is fixedly installed at the top of the end of the inverted convex-shaped limit block located inside the circulation adjustment groove.
[0008] Preferably, convex-shaped grooves are provided at the lower parts of the two circulation adjustment grooves. Convex-shaped limit blocks are movably inserted into the convex-shaped grooves. The top of the convex-shaped limit block extends into the circulation adjustment groove, and a second spring is fixedly connected between the bottom of the convex-shaped limit block and the bottom of the convex-shaped groove.
[0009] Preferably, fixing plates are fixedly installed at the upper parts of the opposite sides of the two vertical plates. Arc-shaped tooth blocks are fixedly installed at the bottoms of the two fixing plates. An adjustment shaft is rotatably installed inside the protective enclosure. The baffle is fixedly connected to the surface of the adjustment shaft, and both ends of the adjustment shaft respectively extend to the outside of both sides of the protective enclosure and are fixedly connected with gears. The two gears are respectively matched and meshed with the two arc-shaped tooth blocks.
[0010] Preferably, a groove is provided at one end of the top of the workbench. A turning shaft is rotatably installed inside the groove. The center of the arc-shaped tooth block coincides with the axis of the turning shaft, and the gear moves around the axis of the turning shaft. One end of the bottom of the base is meshed with the turning shaft. Two toggle rods are fixedly installed at one end of the base. The two toggle rods are located between the lower parts of the two circulation adjustment grooves.
[0011] Preferably, the cover plate is rotatably connected to the protective enclosure through a movable shaft. An installation block is fixedly installed in the middle of one end of the bottom of the cover plate. A square plug is movably inserted through the lower part of the installation block. One end of the square plug is fixedly connected with a pull ring, and a third spring is sleeved on one side of the square plug. The two ends of the third spring are respectively fixedly connected with the pull ring and the installation block. An inverted T-shaped plate is fixedly installed at the upper part inside the protective enclosure. A pressing inclined surface is provided at the upper part of the middle end of the inverted T-shaped plate. A pressed inclined surface matching the pressing inclined surface on the inverted T-shaped plate is provided at the bottom of the other end of the square plug. A placement groove for placing concrete blocks is provided at the top of the base. The placement groove is directly below the extrusion through hole. An aggregate hopper is fixedly installed on one side of the workbench.
[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. The electric screw press has a splash-proof protection structure and a protection structure tilting automatic cleaning function. The splash-proof protection structure can prevent fragments from splashing and injuring people during the compression test, and can effectively gather the fragments to avoid scattering, thereby effectively improving the safety of the press and avoiding the problem of manual cleaning. The protection structure tilting automatic cleaning can adjust the protection structure in the process of the press shrinking and moving upward, so that the gathered fragments can be discharged in a concentrated and effective manner, thereby effectively improving the performance of the press; When the lifting component extends and moves downward and drives the pressure block to move downward, it will drive the fixed block, the connecting shaft, the two connecting rods and the toggle rod to move downward. Due to the limitation of the inverted convex limit block and the extrusion block and the rotation of the two connecting rods through the connecting shaft, the toggle rod will drive the two rollers to move obliquely downward in the upper inclined groove section inside the two circulation adjustment grooves, and then move vertically downward, and then move obliquely downward again and move toward the long vertical groove of the circulation adjustment groove. When the roller moves toward the long vertical groove of the circulation adjustment groove, the roller will squeeze the convex limit block downward through the inclined structure on the top of the convex limit block and compress the second spring, and finally move the roller into the long vertical groove of the circulation adjustment groove. At the same time, the elastic action of the second spring will cause the convex limit block to move upward and move again to the oblique groove at the lower part of the circulation adjustment groove; When the lifting component is retracted and moved upward, it will drive the fixed block, the connecting shaft, the two connecting rods and the toggle rod to move upward, and the upward movement of the toggle rod will drive the two rollers to move upward in the long vertical grooves of the two circulation adjustment grooves. As the roller moves upward, it will squeeze the inclined surface structure on the inverted convex limit block, so that the inverted convex limit block moves to the inside of the inverted convex inner groove and compresses the first spring. At the same time, the movement of the inverted convex limit block will drive the extrusion block to move to the inside of the expansion groove, and finally the roller moves to the top of the circulation adjustment groove and is flush with the extrusion block. Then, the elastic restoring force of the first spring will cause the inverted convex limit block and the extrusion block to move back and reset, thereby pushing the roller to the inside of the upper inclined groove of the circulation adjustment groove; through the above, the toggle rod and the two rollers can only perform one-way circulation movement inside the two circulation adjustment grooves; 1. When the toggle rod drives the two rollers to move downward in an inclined groove section at the upper part of the two circulation adjustment grooves, and then moves downward vertically, and then moves downward in an inclined manner again, the toggle rod will bypass the ends of the two toggle rods and move to the bottom of the two toggle rods, and finally the toggle rod and the roller will move into the long vertical grooves of the two circulation adjustment grooves; when the upward movement of the toggle rod drives the two rollers to move upward in the long vertical grooves of the two circulation adjustment grooves, the upward moving toggle rod will drive the two toggle rods to move upward, and at the same time, the rotation of the flip shaft will cause the two toggle rods to drive the base and the protective enclosure to flip and tilt. The flipping and tilting adjustment of the protective fence will drive two gears to move and rotate on two arc-shaped tooth blocks. The rotation of the two gears will drive the adjustment shaft to rotate, and the rotation of the adjustment shaft will drive the baffle to rotate. Eventually, during the process of the protective fence flipping and tilting, the baffle will rotate, so that the baffle moves out from the opening of the protective fence. At this time, the fragments located inside the protective fence and on the base that has been crushed will automatically slide and pour; after the fragments have been poured, the upward movement of the toggle rod will separate from the two toggle rods. At this time, the two toggle rods will lose the upward pulling force, and at the same time, due to the self-weight of the base and the protective fence, the base will rotate downward and drive the protective fence to reset; When the pressing block moves downward, the pressing block will extend into the protective fence through the pressing through-hole to conduct a compressive extrusion experiment on the concrete block inside the placement groove. The crushed concrete block can be prevented from splashing and injuring people and falling onto the workbench for cleaning operations by the enclosure of the base, the protective fence, the cover plate and the baffle; when the base and the protective fence flip and tilt and the baffle rotates and opens, the crushed concrete block will automatically slide into the inside of the aggregate hopper for centralized collection. By placing a collection bucket at the bottom of the aggregate hopper, effective centralized collection and treatment can be carried out. Description of the Drawings
[0013] The 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 to the present invention.
[0014] In the drawings: Figure 1 is a schematic side-sectional structure diagram of the electric screw press of the present invention; Figure 2 is a schematic side view structure diagram of the electric screw press of the present invention; Figure 3 is the present invention Figure 1 partial structure schematic Figure 1 ; Figure 4 is the present invention Figure 1 partial structure schematic Figure 2 ; Figure 5 is the present invention Figure 4 sectional structure schematic diagram; Figure 6 is the present invention Figure 1 partial structure schematic Figure 3 ; Figure 7 is the present invention Figure 6 partial sectional structure schematic diagram; In the figure: 1, ; 2, ; 3, ; 4, ; 5, ; 6, ; 7, ; 8, ; 9, ; 10, ; 11, ; 12, ; 13, ; 14, ; 15, ; 16, ; 17, ; 18, ; 19, ; 20, ; 21, ; 22, ; 23, ; 24, ; 25, ; 26, ; 27, ; 28, ; 29, ; 30, ; 31, ; 32, ; 33, ; 34, ; 35, ; 36, ; 37, ; 38, ; 39, ; 40, ; 41. Specific embodiments
[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0016] Embodiment 1 is given by Figures 1 to 7 The present invention includes a frame 1, the frame 1 is of a rectangular frame structure, a workbench 2 is fixedly installed at the bottom inside the frame 1, a rotatable and adjustable base 3 is installed on the top of the workbench 2, a protective enclosure 4 is fixedly installed on the top of the base 3, the protective enclosure 4 is of an inverted U-shaped structure, a lifting member 5 is installed on the top of the frame 1, and the lifting member 5 is composed of a screw-nut mechanism driven by a motor. The screw-nut mechanism driven by a motor is the prior art of an electric screw press and will not be elaborated here.
[0017] A pressing block 6 is fixedly installed at the bottom of the lifting member 5, vertical plates 7 are fixedly installed on both sides of the bottom inside the frame 1, a main transmission member 8 is connected between the lower part of the lifting member 5 and the two vertical plates 7, the main transmission member 8 is in transmission connection with the base 3, a rotatable and adjustable cover plate 9 is installed on the top of the protective enclosure 4, an extrusion through-hole 10 aligned with the pressing block 6 up and down is opened in the middle of the cover plate 9, and a rotatable and adjustable baffle 11 is installed inside the protective enclosure 4.
[0018] This electric screw press has a splash-proof protection structure and a function of automatically cleaning the inclined protection structure. The splash-proof protection structure can avoid splashing of fragments and injuring people during the compression test, and at the same time can effectively gather the fragments to avoid scattering, thereby effectively improving the use safety of the press and avoiding the problem of manual cleaning. The automatic cleaning of the inclined protection structure can adjust the inclination of the protection structure during the process of the press shrinking and moving upward, so that the gathered fragments can be effectively discharged centrally, thereby effectively improving the use performance of the press.
[0019] The structure of this electric screw press is simply designed, easy to use, the adjustment and protection are stable and reliable, and its performance can meet the use requirements. Embodiment 2. On the basis of Embodiment 1, the main transmission component 8 includes a fixed block 12 fixedly installed at the lower part of the lifting component 5. One end of the fixed block 12 is rotatably installed through a connecting shaft 13. Both ends of the connecting shaft 13 are fixedly connected with linkage rods 14. And torsion springs 15 are sleeved on both sides of the connecting shaft 13. The two ends of the torsion springs 15 are respectively fixedly connected with the fixed block 12 and the linkage rods 14. A toggle rod 16 is fixedly connected between the lower parts of the two linkage rods 14; Recirculation adjustment grooves 17 are formed on the opposite sides of the two vertical plates 7. The two recirculation adjustment grooves 17 are both in the structure of an inverted isosceles trapezoid. And vertical extension grooves are formed at the lower parts of the two recirculation adjustment grooves 17. Both ends of the toggle rod 16 are provided with rollers 18 located inside the two recirculation adjustment grooves 17. So that the movement track of the toggle rod 16 is an inverted isosceles trapezoid track.
[0020] Inverted convex inner grooves 19 are formed at the upper parts of the two recirculation adjustment grooves 17. Inverted convex limit blocks 20 are movably inserted into the inverted convex inner grooves 19. One end of the inverted convex limit block 20 extends into the recirculation adjustment groove 17. And the bottom of the end of the inverted convex limit block 20 located inside the recirculation adjustment groove 17 is a bevel structure. A first spring 21 is fixedly installed between the other end of the inverted convex limit block 20 and the inside of the inverted convex inner groove 19. An expansion groove 22 is formed at the top of the end of the inverted convex inner groove 19. A pressing block 23 located inside the expansion groove 22 is fixedly installed at the top of the end of the inverted convex limit block 20 located inside the recirculation adjustment groove 17. So as to effectively carry out one-way limit block on the roller 18. So that the roller 18 can only move upward in the long vertical groove of the recirculation adjustment groove 17 and cannot move downward.
[0021] Convex grooves 24 are formed at the lower parts of the two recirculation adjustment grooves 17. Convex limit blocks 25 are movably inserted into the convex grooves 24. The top of the convex limit block 25 extends into the recirculation adjustment groove 17. And the top of the convex limit block 25 located inside the recirculation adjustment groove 17 is a bevel structure. The bevel structure faces the inclined groove at the lower part of the recirculation adjustment groove 17. A second spring 26 is fixedly connected between the bottom of the convex limit block 25 and the bottom of the convex groove 24. So that the roller 18 can only move upward in the long vertical groove of the recirculation adjustment groove 17.
[0022] Specifically, as shown in the accompanying drawings, when the lifting component 5 extends and moves downward to drive the pressing block 6 to move downward, it will drive the fixed block 12, the connecting shaft 13, the two connecting rods 14 and the toggle rod 16 to move downward. Due to the limitation of the inverted convex limit block 20 and the extrusion block 23 and the rotation of the two connecting rods 14 through the connecting shaft 13, the toggle rod 16 will drive the two rollers 18 to move obliquely downward in the upper inclined groove section inside the two circulation adjustment grooves 17, and then move vertically downward, and then move obliquely downward again and move toward the long vertical groove of the circulation adjustment groove 17. When the roller 18 moves toward the long vertical groove of the circulation adjustment groove 17, the roller 18 will squeeze the convex limit block 25 downward through the inclined surface structure at the top of the convex limit block 25 and compress the second spring 26, so that the roller 18 finally moves into the long vertical groove of the circulation adjustment groove 17. At the same time, the elastic action of the second spring 26 will cause the convex limit block 25 to move upward and move again into the oblique groove at the lower part of the circulation adjustment groove 17. When the lifting component 5 shrinks and moves upward, it will drive the fixed block 12, the connecting shaft 13, the two connecting rods 14 and the toggle rod 16 to move upward. The upward movement of the toggle rod 16 will drive the two rollers 18 to move upward in the two long vertical grooves of the circulation adjustment grooves 17. As the rollers 18 move upward, they will squeeze the inclined surface structure on the inverted convex limit block 20, so that the inverted convex limit block 20 moves to the inside of the inverted convex inner groove 19 and compresses the first spring 21. At the same time, the movement of the inverted convex limit block 20 will drive the extrusion block 23 to move to the inside of the expansion groove 22, and finally the roller 18 moves to the top of the circulation adjustment groove 17 and is flush with the extrusion block 23. Then, the elastic restoring force of the first spring 21 will make the inverted convex limit block 20 and the extrusion block 23 move back and reset, thereby pushing the roller 18 to the upper inclined groove of the circulation adjustment groove 17; through the above, the toggle rod 16 and the two rollers 18 can only perform one-way circulation movement inside the two circulation adjustment grooves 17. Embodiment 3, on the basis of embodiment 1, the upper parts of the opposite sides of the two vertical plates 7 are fixedly installed with fixed plates 27, the bottoms of the two fixed plates 27 are fixedly installed with arc-shaped tooth blocks 28, an adjusting shaft 29 is rotatably installed inside the protective enclosure 4, the baffle 11 is fixedly connected to the surface of the adjusting shaft 29, and the two ends of the adjusting shaft 29 are respectively extended to the outside of the two sides of the protective enclosure 4 and are fixedly connected with gears 30, and the two gears 30 are respectively matched and meshed with the two arc-shaped tooth blocks 28; a groove 31 is opened at one end of the top of the workbench 2, and a flip shaft 32 is rotatably installed inside the groove 31, the center of the arc-shaped tooth block 28 coincides with the axis of the flip shaft 32, and the gear 30 moves around the axis of the flip shaft 32, one end of the bottom of the base 3 is meshed with the flip shaft 32, and one end of the base 3 is fixedly installed with two toggle rods 33, and the two toggle rods 33 are located between the lower parts of the two circulation adjustment grooves 17, so that the base 3 and the protective enclosure 4 can be effectively flipped and tilted.
[0023] Specifically, when the toggle lever 16 drives the two rollers 18 to move obliquely downward in the upper inclined groove sections inside the two cyclic adjustment grooves 17, then move vertically downward, and then move obliquely downward again, the toggle lever 16 will move below the two toggle levers 33 by bypassing the ends of the two toggle levers 33, and finally the toggle lever 16 and the rollers 18 will move into the long vertical grooves of the two cyclic adjustment grooves 17; When the upward movement of the toggle lever 16 drives the two rollers 18 to move upward in the long vertical grooves of the two cyclic adjustment grooves 17, the upward-moving toggle lever 16 will drive the two toggle levers 33 to move upward. At the same time, the rotation of the turning shaft 32 will cause the two toggle levers 33 to drive the base 3 and the protective fence 4 to perform a flipping and tilting adjustment; The flipping and tilting adjustment of the protective fence 4 will drive the two gears 30 to move and rotate on the two arc-shaped tooth blocks 28. The rotation of the two gears 30 will drive the adjustment shaft 29 to rotate, and the rotation of the adjustment shaft 29 will drive the baffle 11 to rotate. Finally, during the flipping and tilting process of the protective fence 4, the baffle 11 will rotate, so that the baffle 11 will move out from the opening of the protective fence 4. At this time, the fragments located inside the protective fence 4 and crushed by the base 3 will automatically slide and pour; After the fragments are poured out, the upward movement of the toggle lever 16 will separate from the two toggle levers 33. At this time, the two toggle levers 33 will lose the upward pulling force, and at the same time, due to the self-weight of the base 3 and the protective fence 4, the base 3 will rotate downward to drive the protective fence 4 to reset. Embodiment 4, on the basis of Embodiment 1, the cover plate 9 is rotatably connected to the protective fence 4 through a movable shaft 34. A mounting block 35 is fixedly installed in the middle of one end of the bottom of the cover plate 9. A square plug pin 36 is movably inserted through the lower part of the mounting block 35. One end of the square plug pin 36 is fixedly connected to a pull ring 37, and a third spring 38 is sleeved on one side of the square plug pin 36. The two ends of the third spring 38 are respectively fixedly connected to the pull ring 37 and the mounting block 35. An inverted T-shaped plate 39 is fixedly installed in the upper part of the protective fence 4. An extrusion inclined surface is provided at the upper part of the middle end of the inverted T-shaped plate 39. A pressure-receiving inclined surface matching the extrusion inclined surface on the inverted T-shaped plate 39 is provided at the bottom of the other end of the square plug pin 36.
[0024] A placement groove 40 for placing concrete blocks is provided at the top of the base 3. The placement groove 40 is located directly below the extrusion through-hole 10. A collecting hopper 41 is fixedly installed on one side of the workbench 2. The width of the collecting hopper 41 is greater than the width of the protective fence 4, and the protective fence 4 and the collecting hopper 41 are centered.
[0025] Specifically, when the briquette 6 moves downward, the briquette 6 will extend into the protective fence 4 through the pressing through-hole 10 to conduct a compressive extrusion test on the concrete blocks inside the placement groove 40. The crushed concrete blocks can be prevented from splashing and injuring people and falling onto the workbench 2 for cleaning operations through the enclosure of the base 3, the protective fence 4, the cover plate 9, and the baffle 11; When the base 3 and the protective fence 4 are turned and tilted and the baffle 11 is rotated and opened, the crushed concrete blocks will automatically slide into the inside of the aggregate hopper 41 for centralized collection. By placing a collection bucket at the bottom of the aggregate hopper 41, effective centralized collection and treatment can be carried out. It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An electric screw press, comprising a frame (1), characterized in that: A workbench (2) is fixedly installed at the bottom of the frame (1), a rotatably adjustable base (3) is installed at the top of the workbench (2), a protective enclosure (4) is fixedly installed at the top of the base (3), a lifting component (5) is installed at the top of the frame (1), a pressure block (6) is fixedly installed at the bottom of the lifting component (5), vertical plates (7) are fixedly installed on both sides of the bottom of the frame (1), a main transmission component (8) is connected between the lower part of the lifting component (5) and the two vertical plates (7), and the main transmission component (8) is connected to the base (3) in a driving manner, a rotatably adjustable cover plate (9) is installed at the top of the protective enclosure (4), an extrusion through-hole (10) aligned with the pressure block (6) is opened in the middle of the cover plate (9), and a rotatably adjustable baffle (11) is installed inside the protective enclosure (4).
2. The electric screw press according to claim 1, wherein: The main transmission component (8) comprises a fixed block (12) fixedly mounted at the bottom of the lifting component (5); a connecting shaft (13) is rotatably mounted through one end of the fixed block (12); both ends of the connecting shaft (13) are fixedly connected to connecting rods (14); and both sides of the connecting shaft (13) are sleeved with torsion springs (15); both ends of the torsion spring (15) are fixedly connected to the fixed block (12) and the connecting rod (14), respectively; and a toggle rod (16) is fixedly connected between the lower parts of the two connecting rods (14).
3. The electric screw press according to claim 2, wherein: Circulation adjustment grooves (17) are provided on opposite sides of the two vertical plates (7), and rollers (18) located inside the two circulation adjustment grooves (17) are installed at both ends of the toggle rod (16).
4. The electric screw press according to claim 3, characterized in that: The upper parts of the two circulation adjustment grooves (17) are each provided with an inverted convex inner groove (19), and an inverted convex limiting block (20) is movably inserted into the interior of the circulation adjustment groove (17), and a first spring (21) is fixedly installed between the other end of the inverted convex limiting block (20) and the interior of the inverted convex inner groove (19). An expansion groove (22) is provided at the top of the end of the inverted convex inner groove (19), and an extrusion block (23) located inside the expansion groove (22) is fixedly installed at the top of one end of the inverted convex limiting block (20) located inside the circulation adjustment groove (17).
5. An electric screw press according to claim 4, characterized in that: The lower parts of the two circulation adjustment grooves (17) are each provided with a convex groove (24), a convex stop block (25) is movably inserted into the interior of the convex groove (24), the top of the convex stop block (25) extends into the interior of the circulation adjustment groove (17), and a second spring (26) is fixedly connected between the bottom of the convex stop block (25) and the bottom of the convex groove (24).
6. An electric screw press according to claim 3, characterized in that: A fixing plate (27) is fixedly mounted on the upper parts of the opposite sides of the two vertical plates (7), an arc-shaped tooth block (28) is fixedly mounted on the bottoms of the two fixing plates (27), an adjusting shaft (29) is rotatably mounted inside the protective enclosure (4), the baffle (11) is fixedly connected to the surface of the adjusting shaft (29), and both ends of the adjusting shaft (29) extend to the outside of both sides of the protective enclosure (4) and are fixedly connected to gears (30), and the two gears (30) are matched with and meshed with the two arc-shaped tooth blocks (28) respectively.
7. An electric screw press according to claim 6, characterized in that: One end of the top of the workbench (2) is provided with a groove (31). A turnover shaft (32) is rotatably installed inside the groove (31). The center of the arc-shaped tooth block (28) coincides with the axis of the turnover shaft (32), and the gear (30) moves around the axis of the turnover shaft (32). One end of the bottom of the base (3) is meshed with the turnover shaft (32). Two toggle rods (33) are fixedly installed at one end of the base (3). The two toggle rods (33) are located between the lower parts of the two circulation adjustment grooves (17).
8. An electric screw press according to claim 1, characterized in that: The cover plate (9) is rotatably connected to the protective fence (4) through a movable shaft (34). A mounting block (35) is fixedly installed in the middle of one end of the bottom of the cover plate (9). A square plug pin (36) is movably inserted through the lower part of the mounting block (35). One end of the square plug pin (36) is fixedly connected to a pull ring (37). A third spring (38) is sleeved on one side of the square plug pin (36). The two ends of the third spring (38) are respectively fixedly connected to the pull ring (37) and the mounting block (35). An inverted T-shaped plate (39) is fixedly installed in the upper part of the protective fence (4). An extrusion inclined surface is provided at the upper part of the middle end of the inverted T-shaped plate (39). A pressure-receiving inclined surface matching the extrusion inclined surface on the inverted T-shaped plate (39) is provided at the bottom of the other end of the square plug pin (36).
9. The electric screw press according to claim 8, characterized in that: A placement groove (40) for placing concrete blocks is provided at the top of the base (3). The placement groove (40) is directly below the extrusion through-hole (10). An aggregate hopper (41) is fixedly installed on one side of the workbench (2).