Servo direct-drive pressure device

Abstract

The utility model discloses a servo direct-drive pressure device, which belongs to the technical field of press machines, and comprises a vertically arranged rectangular vertical frame, the rectangular vertical frame consists of a top plate, a bottom plate and two side plates for connecting the top plate and the bottom plate into a whole, a driving device is arranged in the top plate, a threaded rod is arranged in the driving device along the vertical direction, and the top plate and the bottom plate are connected into a whole through the threaded rod. A pressure head assembly is fixedly arranged at the bottom end of the threaded rod, and the pressure head assembly and the two side plates are arranged in a sliding mode in the vertical direction. By arranging the cleaning device, after forged and pressed materials are taken out, more scraps and material powder are easy to remain on the upper end face of the lower die, especially for processing of refractory materials, more material powder remain on the upper end face of the lower die, the filling amount of the refractory materials next time is influenced, and the specification of products is influenced. And after forged and pressed materials are taken out, the upper end face of the upper grinding tool can be rapidly cleaned through the cleaning device, then the lower grinding tool is filled with the materials, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to a press, in particular to a servo direct drive pressure device. Background Art

[0002] Presses, including punching presses and hydraulic presses, are a kind of general-purpose presses with delicate structures. Presses can be widely used in processes such as cutting, punching, blanking, bending, riveting, and forming.

[0003] The existing refractory material forming process is to compact and form with a press. By filling a certain amount of refractory material in a box-shaped lower mold, then the hydraulic press drives the punch to move downward to compact the refractory material in the lower mold, and then the formed refractory material, that is, the so-called refractory brick, is taken out from the lower mold.

[0004] After retrieval, the patent number is: CN116020965B, which provides a servo direct drive press, including a direct drive motor, a slider part, a balance cylinder part, a knockout part, and a computer servo control system. The permanent magnet synchronous motor torque drives the ball screw pair in positive and negative directions to directly push the slider to move up and down, and punch the material on the working pad below.

[0005] When the working pad of the above solution is working, it is easy to accumulate debris and material powder, which affects the next processing and forging of the material. Especially for the processing of refractory materials, there is more material powder remaining on the upper end surface of the lower mold, which affects the filling amount of the next refractory material and the product specifications. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a servo direct drive pressure device that can...

[0007] The utility model adopts the following technical solution: A servo direct drive pressure device includes a vertically arranged rectangular stand. The rectangular stand is composed of a top plate, a bottom plate, and two side plates connecting the top plate and the bottom plate into one body. A driving device is arranged inside the top plate. A threaded rod is arranged vertically inside the driving device. The bottom end of the threaded rod is fixedly provided with a punch assembly. The punch assembly is slidably arranged along the up and down directions with both side plates. The upper end surface of the bottom plate is provided with a lower mold, and a cleaning device is arranged on the upper end surface of the lower mold. The cleaning device is used to clean the upper end surface of the lower mold.

[0008] Further, the lower mold includes two mold blocks slidably arranged on the upper end surface of the bottom plate in the front-back direction. The two mold blocks move towards each other in the front-back direction and dock together to form a complete lower mold. Two cleaning rods are arranged on the upper end surface of the lower mold in the left-right direction. A transmission device is arranged between the mold blocks and the cleaning rods. When the two mold blocks slide away from each other in the front-back direction, the transmission device drives the two cleaning rods to move towards each other on the two mold blocks.

[0009] Further, the transmission device includes a guide rod fixedly arranged on the outer side surface of the cleaning rod, and a driving rod fixedly arranged on the outer side surface of the mold block. Connecting rods are hinged to the outer ends of the driving rod and the guide rod respectively. Cross shafts are rotatably connected to the front and back side surfaces of the two side plates through fixing plates. A lever is fixedly arranged on the outer surface of the cross shaft. The top end of the lever is hinged to the upper connecting rod, and the bottom end of the lever is hinged to the lower connecting rod.

[0010] Further, a power device is arranged on the outer side surface of the right side plate, and the output ends of the power device are connected to the two mold blocks respectively.

[0011] Further, a cross groove is formed on the upper end surface of the bottom plate. Two push blocks are slidably arranged in the front-back direction grooves of the cross groove in the front-back direction. The upper end surface of each push block is fixedly arranged with the corresponding mold block. A return spring is fixedly arranged between the outer side surface of each push block and the inner side wall of the front-back direction groove of the cross groove.

[0012] Further, passive inclined surfaces are formed on the right side surfaces of the two push blocks. When the two push blocks are combined together, the two passive inclined surfaces form a V-shaped groove. A driving block is slidably arranged in the left-right direction groove of the cross groove in the left-right direction. Two driving inclined surfaces are formed on the left side surface of the driving block, and each driving inclined surface is in contact with the corresponding passive inclined surface.

[0013] Further, a hydraulic telescopic rod is fixedly arranged on the right side plate, and the output end of the hydraulic telescopic rod is fixedly arranged with the driving block.

[0014] Further, the pressing head assembly includes a mounting block with the upper end surface fixedly arranged with the bottom end of the threaded rod. The mounting blocks are slidably arranged on the two side plates in the up-down direction. A pressing head is slidably arranged on the lower end surface of the mounting block in the front-back direction. Through bolts are arranged through the upper end surfaces of the mounting blocks on the left and right sides of the threaded rod in the up-down direction, and the through bolts are in threaded connection with the threaded holes formed on the upper end surface of the pressing head.

[0015] Further, the driving device includes a cylindrical shell disposed in the top plate in the up-and-down direction. End caps are fixedly provided on both the upper end face and the lower end face of the cylindrical shell. A stator is coaxially disposed in the cylindrical shell, and a rotor is coaxially disposed in the stator. Shaft journals are coaxially and fixedly provided on both the upper end face and the lower end face of the rotor. Each shaft journal is rotatably connected to the corresponding end cap. The threaded rod passes through both end caps and the cylindrical rotor, and the threaded rod is threadedly connected to the internal thread provided in the central hole of the rotor.

[0016] Further, both ends of the two cleaning rods are slidably disposed in the front-rear direction with respect to the corresponding side plates, and the lower end faces of the two cleaning rods are in sliding contact with the upper end faces of the corresponding grinding blocks.

[0017] I. By providing a cleaning device in the present utility model, after the forged material is taken out, a large amount of debris and material powder are likely to remain on the upper end face of the lower die. Especially for the processing of refractory materials, a large amount of material powder remains on the upper end face of the lower die, which affects the filling amount of the next refractory material and the product specifications. After the forged material is taken out, the upper end face of the upper die can be quickly cleaned by the cleaning device, and then the material can be filled into the lower die, improving the product quality.

[0018] II. By providing the die blocks in the present utility model, the two die blocks are butted together to form the lower die, and by providing the power device, the power device drives the two dies to move separately in the front-rear direction. At the same time, the two die blocks drive the two cleaning rods to move towards each other in the front-rear direction through the transmission device to clean the upper end faces of the two die blocks, so that the cleaned material powder falls into the lower part through the gap separated from the middle of the two grinding blocks, and the fallen material is centrally recycled to avoid remaining on the upper end face of the grinding block and affecting the quantitative filling of the next material. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;

[0020] Figure 2 is the front view structure schematic diagram of the present utility model;

[0021] Figure 3 is the three-dimensional structure schematic diagram of the die block of the present utility model;

[0022] Figure 4 is the three-dimensional structure schematic diagram of the push block of the present utility model;

[0023] Figure 5 is the three-dimensional structure schematic diagram of the return spring of the present utility model;

[0024] Figure 6 is the internal three-dimensional structure schematic diagram of the top plate, side plates and bottom plate of the present utility model;

[0025] Figure 7 This is a three-dimensional structural schematic diagram of the drive block in the present utility model.

[0026] In the figure, 1 is the top plate; 2 is the bottom plate; 3 is the side plate; 4 is the threaded rod; 6 is the mold block; 7 is the cleaning rod; 8 is the guide rod; 9 is the drive rod; 10 is the connecting rod; 11 is the fixing plate; 12 is the horizontal shaft; 13 is the lever; 14 is the cross groove; 15 is the push block; 16 is the return spring; 17 is the passive inclined surface; 18 is the drive block; 19 is the drive inclined surface; 20 is the hydraulic telescopic rod; 21 is the discharge port; 22 is the mounting block; 23 is the pressing head; 24 is the fastening bolt; 25 is the cylindrical shell; 26 is the end cover; 27 is the stator; 28 is the rotor; 29 is the journal. Specific embodiments

[0027] The present utility model will be described in detail below in conjunction with the accompanying drawings and embodiments:

[0028] Please refer to Figures 1-7 , the servo direct drive pressure device of the present utility model includes a vertically arranged rectangular stand, the rectangular stand is composed of a top plate 1 and a bottom plate 2, and two side plates 3 connecting the top plate 1 and the bottom plate 2 into one body. A driving device is arranged inside the top plate 1, a threaded rod 4 is arranged vertically inside the driving device, a pressing head assembly is fixedly arranged at the bottom end of the threaded rod 4, and the pressing head assembly is slidably arranged along the up and down direction with both side plates 3. The upper end surface of the bottom plate 2 is provided with a lower mold, and a cleaning device is arranged on the upper end surface of the lower mold for cleaning the upper end surface of the lower mold.

[0029] During use, the material to be processed, such as refractory material, is placed on the upper end surface of the lower mold, and then the driving device is started to drive the threaded rod 4 to move downward. The threaded rod 4 drives the pressing head assembly to move downward to process and compact the material placed on the upper end surface of the upper mold. When the forged material is taken out, a large amount of debris and material powder are likely to remain on the upper end surface of the lower mold. Especially for the processing of refractory materials, a large amount of material powder remains on the upper end surface of the lower mold, affecting the filling amount of the next refractory material and the product specifications. When the forged material is taken out, the upper end surface of the upper mold can be quickly cleaned through the cleaning device, and then the material is filled into the lower mold, improving the product quality.

[0030] In this embodiment, the lower die includes two die blocks 6 that are slidably arranged in the front-rear direction on the upper end surface of the bottom plate 2. The two die blocks 6 move towards each other in the front-rear direction and dock together to form a complete lower die. Two cleaning rods 7 are arranged on the upper end surface of the lower die in the left-right direction. A transmission device is arranged between the die block 6 and the cleaning rod 7. When the two die blocks 6 slide back and forth and move away from each other, the transmission device drives the two cleaning rods 7 to move towards each other on the two die blocks 6 to clean the upper end surfaces of the two die blocks 6, so that the cleaned material powder falls into the lower part through the gap separated from the middle of the two die blocks 6, and the materials falling into the lower part are centrally recycled, avoiding remaining on the upper end surface of the die block 6 and affecting the quantitative filling of the next material.

[0031] In this embodiment, both ends of the two cleaning rods 7 are slidably arranged in the front-rear direction with the corresponding side plates 3, and the lower end surfaces of the two cleaning rods 7 are in sliding contact with the upper end surfaces of the corresponding die blocks 6. Due to the limitation of the side plates 3, the two cleaning rods 7 can only slide back and forth between the two side plates 3.

[0032] In this embodiment, the transmission device includes a guide rod 8 fixedly arranged on the outer side surface of the cleaning rod 7, and a driving rod 9 fixedly arranged on the outer side surface of the grinding block 6. Link rods 10 are hinged to the outer ends of the driving rod 9 and the guide rod 8. Transverse shafts 12 are rotatably connected to the front and rear side surfaces of the two side plates 3 through fixedly arranged fixing plates 11. A lever 13 is fixedly arranged on the outer surface of the transverse shaft 12. The top end of the lever 13 is hinged to the upper link rod 10, and the bottom end of the lever 13 is hinged to the lower link rod 10; a power device is arranged on the outer side surface of the right side plate 3, and the output ends of the power device are connected to the two grinding blocks 6 respectively; during use, after the product on the upper end surface of the lower grinding tool is processed and taken out, the power device drives the two grinding blocks 6 to move separately in the front and rear directions, so that the grinding block 6 pushes the driving rod 9 to move outward. The driving rod 9 drives the lever 13 to rotate through the lower link rod 10, so that the top end of the lever 13 drives the guide rod 8 to move inward through the upper link rod 10, and further the guide rod 8 drives the cleaning rod 7 to move inward, so that the cleaning rod 7 and the corresponding grinding block 6 generate relative movement. The cleaning rod 7 moves inward, and the corresponding grinding block 6 moves outward, so that the cleaning rod 7 pushes the residual material on the upper end surface of the corresponding grinding block 6 into the gap generated during the separation movement of the two grinding blocks 6, and then the material falling into the gap between the two grinding blocks 6 is centrally recovered and processed; the grinding block 6 in this embodiment is a schematic diagram. The lower mold has various shapes. Among them, the lower mold for processing refractory materials is mostly in the shape of a box with an open top. After the refractory material inside the box-shaped lower mold is compacted by the press head 23 assembly, the product taken out from the box-shaped lower mold is a formed refractory brick. For the box-shaped lower mold, this embodiment is also applicable, and only the height of the two cleaning rods 7 needs to be increased to the set height, so that the cleaning rod 7, the two side plates 3 and the two grinding blocks 6 jointly form the internal space of the box-shaped lower mold.

[0033] In order to achieve the purpose that the two grinding blocks 6 can be reset to the butt-jointed state, in this embodiment, a cross groove 14 is opened on the upper end surface of the bottom plate 2. Two push blocks 15 are slidably arranged along the front and rear directions in the front and rear direction grooves of the cross groove 14. The upper end surface of each push block 15 is fixedly arranged with the corresponding grinding block 6. A return spring 16 is fixedly arranged between the outer side surface of each push block 15 and the inner side wall of the front and rear direction groove of the cross groove 14; when the power device does not drive the two grinding blocks 6 to move separately, the return spring 16 pushes the two push blocks 15 to move towards each other and merge together, and further the two grinding blocks 6 merge together.

[0034] In order to achieve the purpose of driving the two push blocks 15 to move separately by the power device, in this embodiment, passive inclined surfaces 17 are provided on the right side surfaces of the two push blocks 15. When the two push blocks 15 are combined together, the two passive inclined surfaces 17 form a V-shaped groove. A driving block 18 is slidably arranged in the left-right direction groove of the cross groove 14 in the left-right direction. Two driving inclined surfaces 19 are provided on the left side surface of the driving block 18, and each driving inclined surface 19 is in contact with the corresponding passive inclined surface 17; a hydraulic telescopic rod 20 is fixedly arranged on the right side plate 3, and the output end of the hydraulic telescopic rod 20 is fixedly arranged with the driving block 18; during use, after the processed product on the upper end surface of the lower mold is taken out, the hydraulic telescopic rod 20 pushes the driving block 18 to move leftward, so that the driving block 18 forces the two push blocks 15 to move separately against the pressure of the return spring 16 until the driving block 18 is completely located between the two push blocks 15. At this time, the driving block 18 continues to move leftward; at the same time, the separate movement of the two push blocks 15 drives the synchronous separate movement of the two mold blocks 6, so that a gap is generated between the two mold blocks 6; at the same time, the two mold blocks 6 sequentially push the two cleaning rods 7 to move toward each other in the front-rear direction through the driving rod 9, the lower connecting rod 10, the lever 13, the upper connecting rod 10 and the guide rod 8, so that the two cleaning rods 7 clean the upper end surfaces of the two mold blocks 6, and push the residual materials on the upper end surfaces of the mold blocks 6 into the gap between the two mold blocks 6, and then fall into the gap between the two push blocks 15. Part of the materials falling into the gap between the two push blocks 15 are pushed leftward by the driving block 18, so that the materials are pushed into the left discharge port 21 of the two discharge ports 21 provided in the left-right direction groove of the cross groove 14 of the bottom plate 2, so that the cleaned and fallen materials are discharged downward from the left discharge port 21 for centralized recovery treatment. When the driving block 18 moves to the set position on the left, then the hydraulic telescopic rod 20 contracts to drive the driving block 18 to move rightward, so that the driving block 18 pushes the materials in the gap between the two push blocks 15 to the right and discharges them from the right discharge port 21 for centralized recovery treatment; when the driving block 18 moves to the set position on the right, the two push blocks 15 move toward each other under the action of the return spring 16 until they are combined together, and then materials are filled into the lower mold for the next round of processing.

[0035] In this embodiment, the pressing head assembly includes a mounting block 22 whose upper end surface is fixedly arranged with the bottom end of the threaded rod 4. The mounting block 22 is slidably arranged with the two side plates 3 in the up-down direction. A pressing head 23 is slidably arranged on the lower end surface of the mounting block 22 in the front-rear direction. Through holes are provided in the upper end surfaces of the mounting blocks 22 on the left and right sides of the threaded rod 4 in the up-down direction. The fastening bolts 24 are threadedly connected with the threaded holes provided on the upper end surface of the pressing head 23; the positions of the mounting block 22 and the pressing head 23 are fixed by the fastening bolts 24. When disassembling, loosen the fastening bolts 24 and slide the pressing head 23 back and forth to remove the pressing head 23 for maintenance or replacement.

[0036] In this embodiment, the driving device includes a cylindrical housing 25 arranged in the top plate 1 in the up and down direction. End caps 26 are fixedly arranged on both the upper end face and the lower end face of the cylindrical housing 25. A stator 27 is coaxially arranged in the cylindrical housing 25, and a rotor 28 is coaxially arranged in the stator 27. Axle journals 29 are coaxially and fixedly arranged on both the upper end face and the lower end face of the rotor 28. Each axle journal 29 is rotatably connected to the corresponding end cap 26. The threaded rod 4 passes through both end caps 26 and the cylindrical rotor 28, and the threaded rod 4 is threadedly connected to the internal thread formed in the central hole of the rotor 28. During use, when powered on and started, the rotor 28 rotates under the action of the magnetic field of the stator 27. Since the rotor 28 is threadedly connected to the threaded rod 4, and the bottom end of the threaded rod 4 is restricted by the mounting block 22 and can only move up and down, the rotation of the rotor 28 drives the threaded rod 4 to move up and down. When moving downward, it drives the mounting block 22 and the pressing head 23 to process and compact the material in the lower mold below.

[0037] Working principle of the utility model: During use, place the material to be processed, such as refractory material, on the upper end face of the lower die. After powering on and starting, the rotor 28 rotates under the action of the magnetic field of the stator 27. The rotation of the rotor 28 drives the threaded rod 4 to move up and down. When moving downward, it drives the mounting block 22 and the pressing head 23 to process and compact the material in the lower die below. After the processed product on the upper end face of the lower die is taken out, the hydraulic telescopic rod 20 pushes the driving block 18 to move leftward, causing the driving block 18 to force the two push blocks 15 to move apart against the pressure of the return spring 16 until the driving block 18 is completely located between the two push blocks 15. At this time, the driving block 18 continues to move leftward; at the same time, the separation movement of the two push blocks 15 drives the synchronous separation movement of the two die blocks 6, creating a gap between the two die blocks 6; at the same time, the two die blocks 6 sequentially push the two cleaning rods 7 to move toward each other in the front-back direction through the driving rod 9, the lower connecting rod 10, the lever 13, the upper connecting rod 10, and the guide rod 8, so that the two cleaning rods 7 clean the upper end faces of the two die blocks 6, pushing the residual material on the upper end faces of the die blocks 6 into the gap between the two die blocks 6, and then falling into the gap between the two push blocks 15. Part of the material falling into the gap between the two push blocks 15 is pushed leftward by the driving block 18, so that the material is pushed into the left discharge port 21 of the two discharge ports 21 opened in the left-right direction groove of the cross groove 14 of the bottom plate 2, and the cleaned and fallen material is discharged downward from the left discharge port 21 for centralized recovery and treatment. When the driving block 18 moves to the set position on the left, then the hydraulic telescopic rod 20 contracts to drive the driving block 18 to move rightward, causing the driving block 18 to push the material in the gap between the two push blocks 15 to the right and discharge it from the right discharge port 21 for centralized recovery and treatment; when the driving block 18 moves to the set position on the right, the two push blocks 15 move toward each other under the action of the return spring 16 until they merge together, and then fill the lower die with material for the next round of processing.

Claims

1. A servo direct-drive pressure device, characterized in that: The invention comprises a rectangular stand which is arranged vertically, the rectangular stand comprising a top plate (1) and a bottom plate (2), and two side plates (3) which connect the top plate (1) and the bottom plate (2) together, a driving device is arranged inside the top plate (1), a threaded rod (4) is arranged inside the driving device in a vertical direction, a pressing head assembly is fixedly arranged at the bottom end of the threaded rod (4), the pressing head assembly is slidably arranged with the two side plates (3) in an up-down direction, a lower mold is arranged on the upper end surface of the bottom plate (2), and a cleaning device is arranged on the upper end surface of the lower mold, and the cleaning device is used to clean the upper end surface of the lower mold.

2. The servo direct-drive pressure device according to claim 1, characterized in that: The lower mold comprises two mold blocks (6) which are slidably arranged on the upper end surface of the bottom plate (2) in the front-to-back direction. The two mold blocks (6) move toward each other in the front-to-back direction and dock together to form a complete lower mold. Two cleaning rods (7) are arranged on the upper end surface of the lower mold along the left-right direction. A transmission device is arranged between the mold block (6) and the cleaning rod (7). When the two mold blocks (6) slide back and forth and move away from each other to separate, the two cleaning rods (7) are driven by the transmission device to move toward each other on the two mold blocks (6).

3. The servo direct-drive pressure device according to claim 2, characterized in that: The transmission device comprises a guide rod (8) fixedly arranged on the outer side surface of the cleaning rod (7), and a driving rod (9) fixedly arranged on the outer side surface of the mold block (6), the outer ends of the driving rod (9) and the guide rod (8) are both hingedly connected to a connecting rod (10), the front and rear side surfaces of the two side plates (3) are rotatably connected to a transverse axis (12) through a fixing plate (11), a lever (13) is fixedly arranged on the outer surface of the transverse axis (12), the top end of the lever (13) is hingedly connected to the upper connecting rod (10), and the bottom end of the lever (13) is hingedly connected to the lower connecting rod (10).

4. The servo direct-drive pressure device according to claim 3, characterized in that: A power device is provided on the outer side surface of the right side plate (3), and output ends of the power device are connected to the two mold blocks (6).

5. The servo direct-drive pressure device according to claim 4, characterized in that: The upper end surface of the bottom plate (2) is provided with a cross groove (14), and two push blocks (15) are slidably arranged in the front-to-back direction of the cross groove (14), and the upper end surface of each push block (15) is fixedly arranged with the corresponding mold block (6), and a return spring (16) is fixedly arranged between the outer side surface of each push block (15) and the inner side wall of the front-to-back direction of the cross groove (14).

6. The servo direct-drive pressure device according to claim 5, characterized in that: The right sides of the two push blocks (15) are each provided with a passive inclined surface (17). When the two push blocks (15) are combined together, the two passive inclined surfaces (17) form a V-shaped groove. A driving block (18) is provided in the groove in the left and right directions of the cross groove (14) for sliding along the left and right directions. The left side of the driving block (18) is provided with two driving inclined surfaces (19), and each driving inclined surface (19) is fitted with a corresponding passive inclined surface (17). Two discharge ports (21) are provided in the groove in the left and right directions of the cross groove (14) of the bottom plate (2).

7. The servo direct-drive pressure device according to claim 6, characterized in that: A hydraulic telescopic rod (20) is fixedly arranged on the right side plate (3), and an output end of the hydraulic telescopic rod (20) is fixedly arranged on the driving block (18).

8. The servo direct-drive pressure device according to claim 1, characterized in that: The pressure head assembly comprises a mounting block (22) whose upper end surface is fixedly arranged at the bottom end of the threaded rod (4); the mounting blocks (22) are slidably arranged with the two side plates (3) in the up-down direction; a pressure head (23) is slidably arranged at the lower end surface of the mounting block (22) in the front-back direction; fastening bolts (24) are penetrated through the upper end surfaces of the mounting blocks (22) located on the left and right sides of the threaded rod (4) in the up-down direction; the fastening bolts (24) are threadedly connected to the threaded holes provided in the upper end surfaces of the pressure heads (23).

9. The servo direct-drive pressure device according to claim 1, characterized in that: The driving device comprises a cylindrical housing (25) arranged in the top plate (1) along the up-down direction, end covers (26) being fixedly arranged on the upper and lower end surfaces of the cylindrical housing (25), a stator (27) being coaxially arranged in the cylindrical housing (25), a rotor (28) being coaxially arranged in the stator (27), a shaft neck (29) being coaxially fixedly arranged on the upper and lower end surfaces of the rotor (28), each shaft neck (29) being rotatably connected to a corresponding end cover (26), a threaded rod (4) being arranged through the two end covers (26) and the cylindrical rotor (28), and the threaded rod (4) being threadedly connected to an internal thread provided in a center hole of the rotor (28).

10. The servo direct-drive pressure device according to claim 2, characterized in that: Both ends of the two cleaning rods (7) are slidably arranged with the corresponding side plates (3) in the front-rear direction, and the lower end surfaces of the two cleaning rods (7) are in sliding contact with the upper end surfaces of the corresponding mold blocks (6).

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