Crucible forming double-station hydraulic machine

Abstract

The utility model discloses a crucible forming double-station hydraulic machine, which relates to the technical field of crucible manufacturing equipment and comprises a mold base and first hydraulic machines arranged at two ends of the top of the mold base along the length direction of the mold base. A locking mechanism is arranged at the bottom end of the interior of a storage groove in the mold base, a driving mechanism is connected to the upper portion of the locking mechanism, the driving mechanism is driven by the locking mechanism, the multiple first limiting plates can be driven to be spliced and separated, the first limiting plates are separated during demolding, the contact area between the mold and a finished product is reduced, and the production efficiency is improved. Therefore, friction force is reduced, the demolding process is smoother, the demolding speed is increased, the second hydraulic machine can eject out a finished product, friction force generated by direct ejection in a traditional demolding mode is avoided, and the outer arc wall of the finished product is further protected against damage.

Description

Technical Field

[0001] This utility model relates to the field of crucible manufacturing equipment technology, specifically a dual-station hydraulic press for crucible forming. Background Technology

[0002] A crucible is a container widely used in metallurgy, chemical industry, and laboratory fields. It is mainly used for high-temperature smelting, chemical reactions, or material testing. It is usually made of high-temperature resistant materials such as graphite, ceramics, or metals, and can withstand extremely high temperatures and chemical corrosion. In the manufacturing process of crucibles, the forming process is one of the key links, which directly affects the quality and performance of the crucibles.

[0003] In the existing process of manufacturing crucibles using a dual-station hydraulic press, the demolding process is a significant challenge. Traditional demolding methods often involve directly ejecting the finished product from the mold using hydraulic rods. However, this method generates considerable friction between the mold and the finished product during demolding, resulting in a slow demolding speed and potentially damaging the outer arc wall of the finished product. This is especially problematic in the manufacturing of crucibles, which require high surface quality and dimensional accuracy. Damage to the outer arc wall of the finished product can severely affect its performance and lifespan. Furthermore, traditional mold structures are often integrated, making maintenance and replacement difficult. When the mold wears or is damaged, the entire unit needs to be replaced, increasing production costs and downtime.

[0004] In view of the above, this application is hereby submitted. Summary of the Invention

[0005] The purpose of this invention is to provide a dual-station hydraulic press for crucible forming to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a crucible forming dual-station hydraulic press, including a mold base and a hydraulic press I disposed at both ends of its top along its own length. A placement groove is vertically opened at the top of the mold base corresponding to the position of the hydraulic press I. A locking mechanism is provided at the bottom of the placement groove on the mold base. A driving mechanism is connected above the locking mechanism. Four limiting plates I are fixed on the side of the driving mechanism away from the locking mechanism, which are arranged in a ring array about the axis of the hydraulic press I.

[0007] The locking mechanism includes a housing that rotates on the inner side of the bottom of the storage slot. A first internal gear ring and a second internal gear ring are rotatably arranged on the bottom of the housing. Both the first and second internal gear rings are fixed to the inner arc wall of the storage slot. A fixed seat is rotatably located at the center of the inner wall of the top of the housing. A pawl 1 and a pawl 2 are fixed at both ends of the fixed seat along the radial direction of the housing, respectively. Pawl 1 meshes with the first internal gear ring, and the second internal gear ring meshes with the second pawl. A hydraulic press 2 is provided on the inner wall of the bottom of the storage slot. The hydraulic press 2 passes through the locking mechanism and the driving mechanism and is located inside the four limiting plates 1.

[0008] Furthermore, the end of the hydraulic press 2 away from the storage slot passes through the limiting plate 2 and the limiting ring 1 in sequence. The limiting ring 1 and the limiting plate 2 are vertically opened at the center of their side walls along the axial direction. The top of the hydraulic press 2 is fixed with a fixing plate, which is located on the side of the limiting ring 1 away from the limiting plate 2. When the four limiting plates 1 abut against each other, the outer arc wall of the fixing plate abuts against the inner arc wall of the four limiting plates 1.

[0009] Furthermore, both the inner arc wall of the first internal toothed ring and the inner arc wall of the second internal toothed ring are provided with evenly distributed ratchet teeth, and the ratchet teeth of the first internal toothed ring and the second internal toothed ring rotate in opposite directions. The length direction of the fixing seat is consistent with the radial direction of the housing. A sliding channel is provided on the side wall of the fixing seat facing away from the inner wall of the top of the housing along the length direction of the fixing seat. A turntable is rotatably connected to the bottom of the housing.

[0010] Furthermore, within the sliding channel one set on the fixed base, sliders are slidably connected to both ends along the length of the fixed base. Pad one and pad two are respectively fixed to the side walls of the two sliders that are far apart from each other. Reset springs are fixed to the side walls of the two sliders that are close to each other. The same fixing ring is fixed to the side of the two reset springs that are close to each other. The fixing ring is fixed to the center of the inner wall of the top of the housing near the sliding channel one. The hydraulic press two is set vertically through the turntable, the fixing ring and the housing in sequence.

[0011] Furthermore, an oblique groove is provided on the side wall of the slider away from the housing. The oblique grooves on the two sliders are arranged symmetrically about the axis of the fixed ring. The plane of the inner side wall of the oblique groove near the inner wall of the top of the housing is parallel to the plane of the inner wall of the top of the housing. A vertically arranged sliding column 2 slides in the oblique groove. The sliding column 2 is fixed to the top of the turntable. A driving mechanism is fixed to the top of the housing. The driving mechanism includes a limiting ring 1 and a limiting plate 2 set on the top of the housing. The limiting plate 2 is fixed to the top of the housing and there is a gap between the limiting ring 1 and the limiting plate 2. Four sliding plates slide on the side of the limiting ring 1 and the limiting plate 2 that are close to each other. The four sliding plates are arranged in a circular array about the axis of the housing and correspond one-to-one with the four limiting plates 1. The limiting plate 1 is fixed to the end of the sliding plate away from the axis of the limiting ring 1.

[0012] Furthermore, each of the sliding plates has a sliding column with the same structure fixed on its side wall near the limiting ring one and the limiting plate two, respectively. The two sliding columns fixed on the same sliding plate are coaxially arranged. The limiting ring one has four limiting grooves one on its side wall near the limiting plate two. The length direction of the limiting grooves one is consistent with the radial direction of the limiting ring one. The sliding column one fixed on the side of the sliding plate near the limiting ring one slides in the limiting groove one. The limiting plate two has four limiting grooves two on its side wall near the limiting ring one. The four limiting grooves one are arranged in a circular array about the axis of the limiting ring one, and the four limiting grooves two are arranged in a circular array about the axis of the limiting plate two. The sliding column one fixed on the side of the sliding plate near the limiting plate two slides in the limiting groove two. The cross section of the limiting groove two along the horizontal direction is arc-shaped.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The locking mechanism drives the driving mechanism, which can drive multiple limit plates to be spliced ​​and separated. During demolding, the limit plates separate, reducing the contact area between the mold and the finished product, thereby reducing friction and making the demolding process smoother and improving the demolding speed. The hydraulic press can eject the finished product, avoiding the friction caused by direct ejection in the traditional demolding method, and further protecting the outer arc wall of the finished product from damage.

[0015] 2. The original one-piece mold is divided into a split structure with multiple limiting plates. When a part is worn or damaged, it can be replaced individually without replacing the entire mold, which reduces production costs and downtime. The split structure also makes it easier to clean and maintain the mold, extending its service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the positional relationship between the limit plate, the drive mechanism, and the locking mechanism in a dual-station hydraulic press for crucible forming.

[0017] Figure 2 An exploded view of the locking mechanism in a dual-station hydraulic press for crucible forming, taken from an overhead perspective.

[0018] Figure 3 This is a schematic diagram showing the connection relationship between the fixed seat and the slider in a dual-station hydraulic press for crucible forming.

[0019] Figure 4 An exploded view of the drive mechanism in a dual-station hydraulic press for crucible forming;

[0020] Figure 5 This is a schematic diagram of the connection mechanism of the limit plate, drive mechanism and locking mechanism in a dual-station hydraulic press for crucible forming;

[0021] Figure 6This is a schematic diagram of the overall structure of a dual-station hydraulic press for crucible forming.

[0022] In the picture:

[0023] 10. Mold base; 11. Hydraulic press one; 12. Hydraulic press two; 13. Fixing plate;

[0024] 20. Limiting plate one; 21. Limiting ring one; 22. Slide plate; 23. Limiting plate two; 24. Slide post one;

[0025] 30. Housing; 31. Internal toothed ring one; 32. Pawl one; 33. Internal toothed ring two; 34. Pawl two; 35. Fixed seat; 36. Slider; 37. Sliding column two; 38. Return spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see the appendix Figure 1 To be continued Figure 6 The present invention provides a crucible forming dual-station hydraulic press: including a mold base 10 and hydraulic presses 11 disposed at both ends of the top of the mold base 10 along its own length direction. A storage groove is vertically opened at the top of the mold base 10 corresponding to the position of the hydraulic presses 11. A locking mechanism is provided at the bottom of the storage groove on the mold base 10. A driving mechanism is connected above the locking mechanism. Four limiting plates 20 are fixed on the side of the driving mechanism away from the locking mechanism, which are arranged in a ring array about the axis of the hydraulic presses 11.

[0028] The locking mechanism includes a housing 30 that rotates on the inner side of the bottom of the storage slot. A first internal gear ring 31 and a second internal gear ring 33 are rotatably arranged on the bottom of the housing 30. The first internal gear ring 31 and the second internal gear ring 33 are both fixed on the inner arc wall of the storage slot. A fixed seat 35 is rotatably arranged at the center of the inner wall of the top of the housing 30. A first pawl 32 and a second pawl 34 are respectively fixed at both ends of the fixed seat 35 along the radial direction of the housing 30. The first pawl 32 meshes with the first internal gear ring 31, and the second internal gear ring 33 meshes with the second pawl 34. A second hydraulic press 12 is provided on the inner wall of the bottom of the storage slot. The second hydraulic press 12 passes through the locking mechanism and the driving mechanism and is arranged inside the four limit plates 20.

[0029] The inner arc wall of the first internal tooth ring 31 and the inner arc wall of the second internal tooth ring 33 are both provided with evenly distributed ratchet teeth, and the ratchet teeth of the first internal tooth ring 31 and the second internal tooth ring 33 rotate in opposite directions. The length direction of the fixing seat 35 is consistent with the radial direction of the housing 30. A sliding channel is provided on the side wall of the fixing seat 35 facing away from the top inner wall of the housing 30 along the length direction of the fixing seat 35. A turntable is rotatably connected to the bottom of the housing 30.

[0030] Slider 36 is slidably connected to both ends of the sliding channel 1 on the fixed base 35 along the length of the fixed base 35. Pad 1 32 and Pad 2 34 are respectively fixed to the side wall of the two sliders 36 that are far apart from each other. Reset springs 38 are fixed to the side wall of the two sliders 36 that are close to each other. The same fixing ring is fixed to the side of the two reset springs 38 that are close to each other. The fixing ring is fixed to the center of the inner wall of the top of the sliding channel 1 near the top of the housing 30. The hydraulic press 2 12 is arranged vertically through the turntable, the fixing ring and the housing 30 in sequence.

[0031] The slider 36 has an inclined groove on the side wall away from the housing 30. The inclined grooves on the two sliders 36 are symmetrically arranged about the axis of the fixed ring. The plane of the inner side wall of the inclined groove near the top inner wall of the housing 30 is parallel to the plane of the top inner wall of the housing 30. A vertically arranged sliding column 37 slides in the inclined groove and is fixed to the top of the turntable.

[0032] It should be noted that: the mold base 10 is used to stabilize the limiting plate 20 and to withstand the stamping of the hydraulic press 11, and the end of the hydraulic press 11 is fixed with a stamping die head.

[0033] An external gear ring is fixed on the outer arc wall of the turntable. A drive gear meshes with the external gear ring on one side in the horizontal direction. A motor is fixed at the bottom of the drive gear. The external gear ring, drive gear and motor are all set in the storage slot, so that the motor avoids the hydraulic press 212.

[0034] Taking one case as an example, when the turntable rotates in one direction, the internal gear ring 31 and the pawl 32 will not block each other, but the internal gear ring 33 and the pawl 34 will block each other. However, since the turntable rotates synchronously, it drives the sliding column 37 to rotate. The sliding column 37 will abut against the inner wall of the inclined groove on the slider 36, thereby forcing the slider 36 to slide towards the fixed ring. At this time, the pawl 34 at the end of the slider 36 will not engage with the internal gear ring 33 and thus create obstruction. During this period, the reset spring 38 stores force to cause the slider 36 to reset.

[0035] During stamping, the hydraulic press 11 will cause multiple limit plates 20 to expand outward. However, at this time, the drive end changes from the turntable to the housing 30. When the housing 30 rotates actively, since the housing 30 cannot drive the sliding column 37 to rotate, the slider 36 will not slide due to the contact of the sliding column 37. Therefore, the internal toothed ring 31 will mesh with the pawl 32 and thus cannot rotate, achieving the purpose of locking.

[0036] Please see the appendix Figure 1 To be continued Figure 6 The present invention provides a technical solution: a driving mechanism is fixed on the top of the housing 30. The driving mechanism includes a limiting ring 21 and a limiting plate 23 disposed on the top of the housing 30. The limiting plate 23 is fixed on the top of the housing 30 and there is a gap between the limiting ring 21 and the limiting plate 23. Four sliding plates 22 are slidably disposed on the side of the limiting ring 21 and the limiting plate 23 that are close to each other. The four sliding plates 22 are arranged in a circular array about the axis of the housing 30 and correspond one-to-one with the four limiting plates 20. The limiting plate 20 is fixed to the end of the sliding plate 22 away from the axis of the limiting ring 21.

[0037] The sliding plate 22 has a sliding post 24 with the same structure fixed on the side wall near the limiting ring 21 and the limiting plate 23 respectively. The two sliding posts 24 fixed on the same sliding plate 22 are coaxially arranged. The limiting ring 21 has four limiting grooves 1 on the side wall near the limiting plate 23. The length direction of the limiting grooves 1 is consistent with the radial direction of the limiting ring 21. The sliding post 24 fixed on the side of the sliding plate 22 near the limiting ring 21 slides in the limiting grooves 1.

[0038] The limiting plate 23 has four limiting grooves 2 on one side wall near the limiting ring 21. The four limiting grooves 1 are arranged in a ring array about the axis of the limiting ring 21, and the four limiting grooves 2 are arranged in a ring array about the axis of the limiting plate 23. The sliding column 24 fixed on the sliding plate 22 near the limiting plate 23 slides in the limiting groove 2. The limiting groove 2 has an arc-shaped cross section along the horizontal direction.

[0039] The hydraulic press 212, at the end away from the storage slot, passes through the limiting plate 23 and the limiting ring 21 in sequence. The limiting ring 21 and the limiting plate 23 are both vertically opened at the center of their axial sidewalls. The top of the hydraulic press 212 is fixed with a fixing plate 13, which is located on the side of the limiting ring 21 away from the limiting plate 23. When the four limiting plates 20 abut against each other, the outer arc wall of the fixing plate 13 abuts against the inner arc wall of the four limiting plates 20.

[0040] It should be noted that the four limiting plates 20 and the fixing plate 13 form a cylindrical mold;

[0041] When the second limiting plate 23 rotates, the second limiting groove on the second limiting plate 23 will force the first sliding column 24 to slide. Since the first sliding column 24 is restricted by the first limiting groove, the first sliding column 24 can only slide along the first limiting groove under the drive of the second limiting groove, and thus make synchronous centrifugal or centrifugal movements. This drives the four sliding plates 22 to make synchronous centrifugal or centrifugal movements, and then drives the four limiting plates 20 to make synchronous centrifugal or centrifugal movements, which facilitates demolding or individual replacement of one of the pieces.

[0042] Working principle:

[0043] The mold base 10 stabilizes the limiting plate 20 and bears the pressure of the hydraulic press 11. In the locking mechanism, the housing 30 rotates at the bottom of the storage groove. The inner toothed ring 31 meshes with the pawl 32 and the inner toothed ring 33 meshes with the pawl 34 respectively. When the turntable rotates, the engagement and disengagement of the pawl and the inner toothed ring can be controlled by the cooperation of the sliding column 37 and the upper inclined sliding groove of the slider 36 to achieve unlocking. During the stamping, the housing 30 rotates actively, and the pawl 32 meshes with the inner toothed ring 31 to lock, preventing the limiting plate 20 from expanding outward and loosening.

[0044] Four limiting plates 20 and fixed plate 13 form a cylindrical mold, which facilitates molding and demolding. In the driving mechanism, four sliding plates 22 slide between limiting ring 21 and limiting plate 23. The sliding plates 22 slide in limiting groove 1 and limiting groove 2 through sliding column 24 to achieve synchronous centripetal or centrifugal motion, which drives the limiting plates 20 to be spliced ​​or separated. The hydraulic press 12 can push the fixed plate 13 to eject the finished product.

Claims

1. A crucible forming double-station hydraulic machine, comprising a mold base (10) and a hydraulic machine I (11) arranged at the top of the mold base (10) along the length direction of the mold base (10), and a vertical storage groove is arranged at the top of the mold base (10) corresponding to the position of the hydraulic machine I (11), characterized in that: The bottom of the storage slot on the mold base (10) is provided with a locking mechanism. A driving mechanism is connected above the locking mechanism. Four limiting plates (20) are fixed on the side of the driving mechanism away from the locking mechanism, which are arranged in a ring array about the axis of the hydraulic press (11). ​ The locking mechanism includes a housing (30) that rotates on the inner side of the bottom of the storage slot. The bottom of the housing (30) is provided with an inner toothed ring 1 (31) and an inner toothed ring 2 (33) that rotate sequentially. The inner toothed ring 1 (31) and the inner toothed ring 2 (33) are both fixed on the inner arc wall of the storage slot. A fixed seat (35) is rotated at the center of the inner wall of the top of the housing (30). The fixed seat (35) is fixed with a pawl 1 (32) and a pawl 2 (34) at both ends of the radial direction of the housing (30). The pawl 1 (32) meshes with the inner toothed ring 1 (31), and the inner toothed ring 2 (33) meshes with the pawl 2 (34). A hydraulic press 2 (12) is provided on the inner wall of the bottom of the storage slot. The hydraulic press 2 (12) passes through the locking mechanism and the driving mechanism to the inner side of the four limiting plates 1 (20).

2. The dual-station hydraulic press for crucible forming as described in claim 1, characterized in that: The inner arc wall of the first internal toothed ring (31) and the inner arc wall of the second internal toothed ring (33) are provided with evenly distributed ratchet teeth, and the ratchet teeth of the first internal toothed ring (31) and the second internal toothed ring (33) rotate in opposite directions. The length direction of the fixed seat (35) is consistent with the radial direction of the shell (30). A sliding channel is provided on the side wall of the fixed seat (35) facing away from the inner wall of the top of the shell (30) along the length direction of the fixed seat (35). A turntable is connected to the bottom of the shell (30) for rotation.

3. The crucible forming dual-station hydraulic press as described in claim 2, characterized in that: Sliding blocks (36) are slidably connected to both ends of the sliding channel one set on the fixed seat (35) along the length direction of the fixed seat (35). Pad one (32) and pad two (34) are respectively fixed on the side wall of the two sliding blocks (36) that are far apart from each other. Reset springs (38) are fixed on the side wall of the two sliding blocks (36) that are close to each other. The same fixing ring is fixed on the side of the two reset springs (38) that are close to each other. The fixing ring is fixed at the center of the inner wall of the top of the sliding channel one near the top of the housing (30). The hydraulic press two (12) is set vertically through the turntable, the fixing ring and the housing (30) in sequence.

4. A double station hydraulic pot forming press as claimed in claim 3, wherein: The slider (36) has an inclined groove on the side wall away from the housing (30). The inclined grooves on the two sliders (36) are arranged symmetrically about the axis of the fixed ring. The plane of the inner side wall of the inclined groove near the top inner wall of the housing (30) is parallel to the plane of the top inner wall of the housing (30). A vertically arranged sliding column (37) slides in the inclined groove and is fixed to the top of the turntable.

5. A double station hydraulic pot forming press as claimed in claim 1, wherein: The top of the housing (30) is fixed with a driving mechanism. The driving mechanism includes a limiting ring (21) and a limiting plate (23) set on the top of the housing (30). The limiting plate (23) is fixed on the top of the housing (30) and there is a gap between the limiting ring (21) and the limiting plate (23). Four sliding plates (22) slide on the side of the limiting ring (21) and the limiting plate (23) that are close to each other. The four sliding plates (22) are arranged in a ring array about the axis of the housing (30) and correspond one-to-one with the four limiting plates (20). The limiting plate (20) is fixed at the end of the sliding plate (22) away from the axis of the limiting ring (21).

6. A double station hydraulic pot forming press as claimed in claim 5, wherein: The slide plate (22) has a sliding column (24) with the same structure fixed on the side wall of the limiting ring (21) and the limiting plate (23) respectively. The two sliding columns (24) fixed on the same slide plate (22) are coaxially arranged. The limiting ring (21) has four limiting grooves on the side wall of the limiting plate (23). The length direction of the limiting groove is consistent with the radial direction of the limiting ring (21). The sliding column (24) fixed on the side of the slide plate (22) near the limiting ring (21) slides in the limiting groove.

7. A double station hydraulic potting press as claimed in claim 6 wherein: The second limiting plate (23) has four limiting grooves on one side wall near the first limiting ring (21). The four limiting grooves are arranged in a ring array about the axis of the first limiting ring (21), and the four limiting grooves are arranged in a ring array about the axis of the second limiting plate (23). The first sliding column (24) fixed on the sliding plate (22) near the second limiting plate (23) slides in the second limiting groove. The cross section of the second limiting groove along the horizontal direction is arc-shaped.

8. A double station hydraulic potting press as claimed in claim 1 wherein: The hydraulic press 2 (12) is connected to the limiting plate 2 (23) and the limiting ring 1 (21) at the end away from the storage slot. The limiting ring 1 (21) and the limiting plate 2 (23) are vertically connected to the center of the side wall along the axial direction with a channel 1. The top of the hydraulic press 2 (12) is fixed with a fixing plate (13). The fixing plate (13) is located on the side of the limiting ring 1 (21) away from the limiting plate 2 (23). When the four limiting plates 1 (20) abut against each other, the outer arc wall of the fixing plate (13) abuts against the inner arc wall of the four limiting plates 1 (20).

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