A vacuum high temperature hot press

Abstract

The present invention relates to the field of high-temperature hot pressing technology, and in particular to a vacuum high-temperature hot pressing machine. It comprises a frame, the frame is slidably connected to a support plate, the support plate is slidably connected to a first sliding plate, the frame is installed with a hydraulic push rod and a vacuum pump, the telescopic end of the hydraulic push rod is fixedly connected to a moving column, the moving column is fixedly connected to an upper mold, the first sliding plate is rotatably connected to a rotating ring, the moving column is slidably connected to a vacuum cover, one side of the vacuum cover is fixedly connected to a first sealing ring, the rotating ring is fixedly connected to a second sealing ring, and the second sealing ring is provided with a first groove. The present invention makes the second sealing ring deflect at an angle during a single hot pressing process, so that the first groove contacts with different areas on the first sealing ring one by one, thereby preventing the area at the same position on the first sealing ring from being repeatedly deformed, resulting in excessive cyclic stress, loss of normal working ability, and affecting the vacuum environment in the subsequent hot pressing process.

Description

Technical Field

[0001] The invention belongs to the technical field of high-temperature hot pressing, in particular to a vacuum high-temperature hot pressing machine. Background Art

[0002] A high-temperature hot press is an industrial equipment that heats and melts plastic materials and shapes them according to molds. It is mainly used for high-temperature hot pressing of PEEK materials, polyimide materials and other composite materials. In a vacuum environment, the effects of air oxidation and adsorption on the material surface are significantly reduced, so vacuuming has become an indispensable part of a high-temperature hot press.

[0003] In the process of creating a vacuum environment, the existing vacuum high-temperature hot press usually only uses two sealing rings that are in close contact and fit with each other to isolate it from the external environment. However, the shapes of the two sealing rings will change during the vacuum treatment process, and the position where the deformation occurs during each vacuum treatment is the same. In this way, the number of cyclic stresses on the local area of ​​the sealing ring will be too many. Over time, the sealing ring will lose its ability to work normally due to excessive cyclic stresses, lose its sealing function and destroy the vacuum environment, thereby affecting the hot pressing process. Summary of the invention

[0004] In order to overcome the shortcomings of the existing vacuum high-temperature hot press in the above technical background, the present invention provides a vacuum high-temperature hot press.

[0005] The technical implementation scheme of the present invention is as follows: a vacuum high-temperature hot press comprises a frame, the frame is slidably connected to a support plate, the support plate is slidably connected to a first sliding plate, a hydraulic push rod and a vacuum pump are installed on the frame, the telescopic end of the hydraulic push rod is fixedly connected to a moving column, the moving column is fixedly connected to an upper mold, the first sliding plate is rotatably connected to a rotating ring on the side away from the support plate, the moving column is slidably connected to a vacuum cover, the vacuum cover is connected to the vacuum pump through a pipeline, the vacuum cover is fixedly connected to a first sealing ring on the side close to the first sliding plate, A second sealing ring is fixedly connected to a side of the rotating ring close to the first sealing ring, and the second sealing ring is in contact with the first sealing ring. A lower mold that is in contact with the upper mold is fixedly connected to a side of the first sliding plate close to the upper mold. A heating module and a cooling module are provided on both the lower mold and the upper mold. The second sealing ring is provided with a first groove. An adjusting mechanism for relative movement of the second sealing ring and the first sealing ring is provided on a side of the first sliding plate away from the support plate. A demoulding mechanism for demoulding the workpiece shell is provided in the middle of the frame.

[0006] More preferably, the moving column is fixedly connected to a moving plate, the moving plate is slidably connected to a mirror-arranged guide rod, the guide rod is fixedly connected to the vacuum cover, and a first elastic element is fixedly connected between the guide rod and the moving plate.

[0007] More preferably, the adjustment mechanism includes a gear ring, which is rotatably connected to the first sliding plate, and the gear ring is fixed to the rotating ring. The first sliding plate is rotatably connected to a side of the upper mold with uniformly arranged limiting columns, and the limiting columns are fixed with gears on a side of the support plate, and the gears are meshed with the gear ring. A mirror-arranged mounting rod is fixed to one side of the vacuum cover close to the first sealing ring, and extrusion columns are slidably connected to opposite sides of the mirror-arranged mounting rods, and a second elastic element is fixed between the extrusion column and the adjacent mounting rod, and the limiting column is provided with a second groove and a third groove, and the second groove and the third groove are respectively limited by the adjacent extrusion column, and the second groove is connected to the adjacent third groove to form a closed groove.

[0008] More preferably, a first shell is fixedly connected to a side of the frame away from the hydraulic push rod, a connecting rod arranged in a mirror image is fixedly connected to the movable plate, the vacuum cover and the support plate are both slidably connected to the connecting rod arranged in a mirror image, a side of the first shell close to the support plate is fixedly connected to and connected to a second shell arranged equidistantly, the first shell and the second shell are both filled with transmission medium, the connecting rod is slidably connected to the adjacent second shell, and the second shell not connected to the connecting rod is slidably connected to a first movable member, and the first movable member is fixed to the support plate.

[0009] More preferably, the demolding mechanism includes an air outlet shell, the air outlet shell is fixedly connected to a side of the frame body close to the support plate, the first sliding plate is fixedly connected to a second moving part on a side close to the air outlet shell, the lower mold is slidably connected to a push rod, the push rod is in contact with the lower mold, the first sliding plate is fixedly connected to a sliding part on a side close to the support plate, a cavity is arranged in the sliding part, the support plate and the push rod are slidably connected to the sliding part, an intermediate pipe is connected between the cavity on the sliding part and the air outlet shell, a second sliding plate is slidably connected in the air outlet shell, the second sliding plate is extruded and matched with the second moving part, a one-way air valve is installed on the second sliding plate, a third elastic element is fixedly connected between the second sliding plate and the air outlet shell, and an auxiliary component for blowing air to the workpiece shell is arranged between the push rod and the sliding part.

[0010] More preferably, the auxiliary component includes a fourth elastic element, the fourth elastic element is fixed between the push rod and the sliding member, a first cavity is provided in the push rod, the first cavity is connected to the cavity on the sliding member, and an annular array of air outlet holes is provided on the side of the push rod away from the sliding member, and the air outlet holes are connected to the first cavity.

[0011] More preferably, it also includes a feeding mechanism for discharging equal amounts of materials, the feeding mechanism being arranged on a side of the frame body away from the vacuum cover, the feeding mechanism including a material storage shell, the material storage shell being fixedly connected to a side of the frame body away from the vacuum cover, a side of the material storage shell close to the support plate being provided with a first through hole in an annular array, the first sliding plate being fixedly connected to a vertical plate, a side of the vertical plate close to the first sliding plate being fixedly connected to a first rack, a side of the material storage shell close to the support plate being rotatably connected to a rotating plate, the rotating plate being provided with a second through hole in an annular array, the second through hole on the rotating plate being communicated and matched with the first through hole on the material storage shell, a connecting frame being fixedly connected to a side of the rotating plate close to the support plate, the connecting frame being fixedly connected to a second rack, the second rack being transmission matched with the first rack, and a moving component for lowering the discharge height is provided on a side of the material storage shell close to the support plate.

[0012] More preferably, the moving component includes a polymer shell, which is fixedly connected to a side of the material storage shell close to the support plate, the polymer shell is communicated with the first through hole on the material storage shell, the polymer shell is slidably connected to a sliding shell, a side of the sliding shell away from the polymer shell is provided with a third through hole in an annular array, the sliding shell is fixedly connected to a cross bar, a side of the sliding shell away from the polymer shell is slidably connected to a sealing plate in an annular array, the sealing plate is sealed and cooperated with the adjacent third through hole on the sliding shell, the sealing plate is fixedly connected to a sliding rod arranged in a mirror image, the sliding rod is slidably connected to the sliding shell, a fifth elastic element is fixedly connected between the sliding rod and the sliding shell, and an extrusion component for causing the sliding shell and the sealing plate in the annular array to slide relative to each other is provided between the polymer shell and the sliding shell.

[0013] More preferably, the third through hole on the sliding shell is located on a side close to the aggregate shell, so as to allow the discharged raw material to accumulate in the lower mold in a concave shape.

[0014] More preferably, the extrusion assembly includes a sliding column in an annular array, the sliding columns in the annular array are all slidably connected to the sliding shell, the sliding column is in contact and cooperate with the aggregate shell, a sixth elastic element is fixedly connected between the sliding column and the aggregate shell, the aggregate shell is provided with a second cavity, the sliding shell slides in the second cavity, the sliding shell is provided with a first channel in an annular array, a side of the sliding shell away from the storage shell is provided with a second channel in an annular array and arranged in a mirror image, the second cavity and the first channel are both filled with transmission medium, the second channel is connected to the adjacent first channel, the sliding rod slides in the adjacent second channel, the sliding column is provided with a third channel, the third channel is connected to the second cavity and the adjacent first channel, the sliding column is provided with a fourth channel in an annular array, the fourth channel is connected to the second cavity, the fourth channel is connected and cooperates with the adjacent first channel, and a one-way valve is installed in the third channel.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: the present invention makes the second sealing ring deflect at an angle during a single hot pressing process, so that the first groove contacts with different areas on the first sealing ring one by one, thereby preventing the area at the same position on the first sealing ring from being repeatedly deformed and subjected to too many cyclic stresses, thereby losing the ability to work normally and affecting the vacuum environment in the subsequent hot pressing process; the elastic force of the first elastic element is used to make the first sealing ring and the second sealing ring fit tightly, so as to ensure the vacuum degree in the subsequent high-temperature hot pressing process and thus improve the hot pressing effect; the relative sliding between the second sliding plate and the air outlet shell allows the compressed air to The ejector pin is pressed upward, so that the ejector pin presses the workpiece shell upward, causing the workpiece shell to separate from the lower die, thereby reducing the operating steps of the staff, reducing the work intensity of the staff, and improving work efficiency; the compressed air discharged from the air outlet is used to evenly extrude the workpiece shell, preventing the ejector pin from simply moving upward to extrude the workpiece shell, causing the workpiece shell to be subjected to excessive force concentration, thereby causing damage to the workpiece shell and reducing the hot pressing quality of the workpiece shell; the reciprocating motion of the first rack causes the storage shell and the rotating plate to rotate relative to each other, thereby completing the loading in the gap during the hot pressing process, reducing the operating steps of the staff and reducing the work intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 It is a three-dimensional structural cross-sectional view of the frame of the present invention and its upper parts;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the second shell of the present invention when relative motion occurs between the second shell and the adjacent first moving member;

[0019] Figure 4 It is a three-dimensional structural exploded diagram of the first sliding plate and parts thereon of the present invention;

[0020] Figure 5 It is a three-dimensional structural cross-sectional view of the support plate and some parts on it of the present invention;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the present invention when the gas outlet housing and the second sliding plate are in relative motion;

[0022] Figure 7 For the present invention Figure 6 Schematic diagram of the three-dimensional structure at A in the middle;

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the material storage shell and the parts thereon of the present invention;

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure when the material storage shell and the rotating plate of the present invention rotate relative to each other;

[0025] Fig.10 It is a three-dimensional structural cross-sectional view of the material storage shell and the parts thereon of the present invention;

[0026] Fig.11 It is a three-dimensional structure explosion diagram of the material storage shell and the parts thereon of the present invention;

[0027] Fig.12 It is a three-dimensional structural cross-sectional view of the polymer shell and the parts thereon of the present invention;

[0028] Fig.13 It is a schematic diagram of the three-dimensional structure when the sliding shell and the sliding rod of the present invention slide relative to each other;

[0029] Fig.14 It is a three-dimensional structural cross-sectional view of the sliding column and the parts thereon of the present invention.

[0030] The markings of the components in the accompanying drawings are as follows: 101-workpiece shell, 1-frame, 2-support plate, 3-first sliding plate, 4-hydraulic push rod, 5-vacuum pump, 6-moving column, 7-upper mold, 8-rotating ring, 9-vacuum cover, 10-first blocking ring, 1101-second blocking ring, 1102-lower mold, 1103-first groove, 1201-moving plate, 1202-guide rod, 1203-first elastic element, 1301-gear ring, 1302-limiting column, 1303-gear, 1304-mounting rod, 1305-extrusion column, 1306-second elastic element, 1307-second groove, 1308-third groove, 1401-first shell, 1402-connecting rod, 1403-second shell, 1404-first moving part, 1501-gas outlet shell, 1502-second moving Moving part, 1503-top rod, 1504-sliding part, 1505-middle tube, 1506-second sliding plate, 1507-third elastic element, 1601-fourth elastic element, 1602-first cavity, 1603-air outlet, 1701-material storage shell, 1702-vertical plate, 1703-first rack, 1704-rotating plate, 1705-connecting frame, 1706-second rack, 1801-material aggregation shell, 1802-sliding shell, 1803-cross bar, 1804-blocking plate, 1805-sliding rod, 1806-fifth elastic element, 1901-sliding column, 1902-sixth elastic element, 1903-second cavity, 1904-first channel, 1905-second channel, 1906-third channel, 1907-fourth channel, 1908-one-way valve. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field 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 attached claims and their equivalents.

[0032] When the existing vacuum high-temperature hot press is performing vacuum environment processing, the sealing ring that ensures the vacuum environment will change in shape, and the position of deformation will be the same during each vacuum processing. In this way, the number of cyclic stresses on the local area of ​​the sealing ring will be too many. In the long run, the sealing ring will lose its ability to work normally due to excessive cyclic stresses, thereby affecting the hot pressing process.

[0033] Embodiment 1: A vacuum high temperature hot press, such as Figure 1-Figure 4 As shown, it includes a frame 1, a support plate 2 is slidably connected to the middle part of the frame 1, a first sliding plate 3 is installed on the upper side of the support plate 2 through an electric slide rail and an electric slider, a hydraulic push rod 4 and a vacuum pump 5 are installed on the right part of the upper side of the frame 1, a moving column 6 is fixedly connected to the telescopic end of the hydraulic push rod 4, an upper mold 7 is fixedly connected to the lower side of the moving column 6, a rotating ring 8 is rotatably connected to the upper side of the first sliding plate 3, a vacuum cover 9 is slidably connected to the middle and upper part of the moving column 6, the vacuum cover 9 is connected to the vacuum pump 5 through a pipeline, a first blocking ring 10 is fixedly connected to the lower side of the vacuum cover 9, the first blocking ring 10 is made of elastic rubber, a second blocking ring 1101 that contacts and cooperates with the first blocking ring 10 is fixedly connected to the upper side of the rotating ring 8, and the first blocking ring 10 is tightly fitted with the second blocking ring 1101. In order to isolate it from the external environment, a lower mold 1102 is fixedly connected to the upper side of the first sliding plate 3 and contacts with the upper mold 7. The upper mold 7 contacts with the lower mold 1102 to shape the workpiece shell 101. A heating module and a cooling module are provided on the lower mold 1102 and the upper mold 7 for changing the shape of the raw material required for hot pressing the workpiece shell 101. The second sealing ring 1101 is provided with two evenly arranged first grooves 1103. The first groove 1103 is a spiral groove for deforming the adjacent areas on the first sealing ring 10 to isolate it from the external environment. An adjusting mechanism for relative movement of the second sealing ring 1101 and the first sealing ring 10 is provided on the upper side of the first sliding plate 3. A demolding mechanism for demolding the workpiece shell 101 is provided in the middle of the frame 1.

[0034] like Figure 2 and Figure 3 As shown, a moving plate 1201 is fixedly connected to the middle of the moving column 6, and the moving plate 1201 is slidably connected to two guide rods 1202 arranged in front and back mirror images. The guide rods 1202 are fixedly connected to the vacuum cover 9 through a cross plate, and a first elastic element 1203 is fixedly connected between the guide rods 1202 and the moving plate 1201. The first elastic element 1203 is a spring, which is used to reset the adjacent guide rods 1202.

[0035] like Figure 3 and Figure 4As shown, the adjustment mechanism includes a gear ring 1301, which is rotatably connected to the first sliding plate 3, and the gear ring 1301 is fixedly connected to the rotating ring 8. The upper side of the first sliding plate 3 is rotatably connected to two limit posts 1302 evenly arranged in front and back, and the lower side of the limit post 1302 is fixedly connected to a gear 1303 meshing with the gear ring 1301. The lower part of the inner side of the vacuum cover 9 is fixedly connected to two mounting rods 1304 arranged in front and back mirror images, and the lower parts of the opposite sides of the two mounting rods 1304 are slidably connected to squeeze posts 1305, and a second elastic element 1305 is fixedly connected between the squeeze post 1305 and the adjacent mounting rod 1304. 06, the second elastic element 1306 is a spring, used to reset the adjacent extrusion column 1305, the limiting column 1302 is provided with a second groove 1307 and a third groove 1308, the second groove 1307 is a spiral groove, the third groove 1308 is a vertical groove, the second groove 1307 and the third groove 1308 are respectively limited and matched with the adjacent extrusion column 1305, and the adjacent extrusion column 1305 is rotated by squeezing the adjacent second groove 1307 by the extrusion column 1305, the second groove 1307 is connected with the adjacent third groove 1308 to form a closed groove, and the depth of the second groove 1307 gradually decreases from top to bottom.

[0036] like Figure 1-Figure 3 As shown, a first shell 1401 is fixedly connected to the right portion of the lower side of the frame 1, two connecting rods 1402 arranged in front and back mirror images are fixedly connected to the upper side of the movable plate 1201, the vacuum cover 9 and the support plate 2 are both slidably connected to the two connecting rods 1402, the upper side of the first shell 1401 is fixedly connected and connected to four second shells 1403 arranged equidistantly, the first shell 1401 and the second shell 1403 are both filled with a transmission medium, and the transmission medium is hydraulic oil, the two connecting rods 1402 are respectively slidably connected to the second shells 1403 adjacent to the outer side, and the two second shells 1403 on the inner side are both slidably connected to the first movable part 1404 fixed to the support plate 2.

[0037] like Figure 5 and Figure 6As shown, the demoulding mechanism includes an air outlet shell 1501, which is fixed to the lower side of the frame 1, a second moving member 1502 is fixed to the right part of the lower side of the first sliding plate 3, and the second moving member 1502 penetrates the air outlet shell 1501, and the lower mold 1102 is slidably connected to a push rod 1503 that contacts and cooperates with it, and a sliding member 1504 that is slidably connected to the support plate 2 is fixed to the lower side of the first sliding plate 3, and the sliding member 1504 is slidably connected to the push rod 1503, and a cavity is set in the sliding member 1504, and the cavity on the sliding member 1504 is in contact with the air outlet shell 150 1 is connected with an intermediate pipe 1505, and a second sliding plate 1506 which is squeezed and matched with the second moving member 1502 is slidably connected in the air outlet shell 1501. The second sliding plate 1506 is installed with a one-way air valve, and the flow direction of the one-way air valve is from right to left. A third elastic element 1507 is fixedly connected between the second sliding plate 1506 and the air outlet shell 1501, and the third elastic element 1507 is a spring for resetting the second sliding plate 1506. An auxiliary component for blowing air to the workpiece shell 101 is arranged between the push rod 1503 and the sliding member 1504.

[0038] like Figure 7 As shown, the auxiliary component includes a fourth elastic element 1601, which is fixed between the push rod 1503 and the sliding member 1504. The fourth elastic element 1601 is a spring, which is used to reset the push rod 1503. A first cavity 1602 connected to the upper cavity of the sliding member 1504 is arranged in the push rod 1503, and a plurality of air outlet holes 1603 in a circular array are arranged on the upper side of the push rod 1503. The air outlet holes 1603 are connected to the first cavity 1602. The compressed air discharged from the air outlet holes 1603 is used to fill the space between the workpiece shell 101 and the lower mold 1102, and at the same time, a uniform force is applied to the workpiece shell 101, so as to avoid excessive concentration of force on the workpiece shell 101, resulting in damage to the workpiece shell 101 and reducing the hot pressing quality of the workpiece shell 101.

[0039] When it is necessary to use this device to perform vacuum high-temperature hot pressing on the workpiece shell 101, the staff first places the raw material in the lower mold 1102, and then starts the electric slide rail and the electric slider to move the first sliding plate 3 to the right. The first sliding plate 3 drives the rotating ring 8, the second sealing ring 1101, the lower mold 1102, the gear ring 1301, the two limit columns 1302 and the two gears 1303 to move to the right together. After the lower mold 1102 moves to the right to the bottom of the upper mold 7, the staff closes the electric slide rail and the electric slider and starts the hydraulic push rod 4, as well as the heating modules on the upper mold 7 and the lower mold 1102. The telescopic end of the hydraulic push rod 4 begins to move downward, and the heating module on the lower mold 1102 begins to heat the raw material therein. The telescopic end of the hydraulic push rod 4 drives the moving column 6 to move downward together, and the moving column 6 drives the upper mold 7 and the moving plate 1201 to move downward together. The vacuum cover 9 and the first sealing ring 10 begin to move downward under the action of their own gravity.

[0040] During the downward movement of the movable plate 1201, the movable plate 1201 drives the two connecting rods 1402 to move downward together, and the connecting rods 1402 begin to squeeze the hydraulic oil in the adjacent second shells 1403. The hydraulic oil in the squeezed second shells 1403 (the two second shells 1403 located on the left and right sides) enters the first shell 1401, and then the hydraulic oil in the first shell 1401 enters the two middle second shells 1403 and squeezes the adjacent first movable parts 1404 upward. The two first movable parts 1404 move upward and jointly drive the support plate 2 and the parts thereon to move upward together, so that the upper mold 7 and the lower mold 1102 move relative to each other, thereby reducing the stroke of a single movement of the upper mold 7 or the lower mold 1102 during the hot pressing process, reducing the time required for the mold alignment process, and improving work efficiency.

[0041] When the first sealing ring 10 moves downward until it contacts the second sealing ring 1101, as the moving column 6 continues to move downward, the moving plate 1201 moves downward relative to the two guide rods 1202 and compresses the first elastic element 1203. The elastic force of the first elastic element 1203 is used to make the first sealing ring 10 and the second sealing ring 1101 fit tightly together, thereby ensuring the vacuum degree in the subsequent high-temperature hot pressing process and thereby improving the hot pressing effect.

[0042] After the first sealing ring 10 moves downward to contact with the second sealing ring 1101 and completely covers the two first grooves 1103, the staff starts the vacuum pump 5. The vacuum pump 5 performs vacuum treatment on the environment between the vacuum cover 9 and the second sealing ring 1101 through the pipeline. Since the first sealing ring 10 is in a negative pressure environment at this time, the first sealing ring 10 has a tendency to move to the adjacent area on the adjacent first groove 1103 (part of the first sealing ring 10 moves into the adjacent first groove 1103), so that part of the first sealing ring 10 is closely fitted with the second sealing ring 1101, thereby ensuring the vacuum degree of the subsequent hot pressing area and improving the hot pressing effect. After the hot pressing area reaches the target vacuum degree, the staff turns off the vacuum pump 5. During the process, the heating module always heats the raw material in the lower mold 1102 until the raw material in the lower mold 1102 is completely molten. The staff then turns off the heating module. As the upper mold 7 continues to move downward, when the upper mold 7 contacts the molten raw material, as the upper mold 7 continues to move downward, the molten raw material gradually fills the space between the upper mold 7 and the lower mold. When the upper mold 7 moves downward to contact and fit with the lower mold, the staff turns off the hydraulic push rod 4 and the heating module and starts the cooling module to cool and solidify the workpiece shell 101 to finally form a hot pressed part.

[0043] After the workpiece shell 101 completes cooling and solidification, the staff turns off the cooling module and starts the hydraulic push rod 4 again. The telescopic end of the hydraulic push rod 4 begins to move upward, and the telescopic end of the hydraulic push rod 4 drives the moving column 6 and the parts thereon to move upward together. The two upward moving connecting rods 1402 drive the adjacent first moving parts 1404 to move upward together, and the second shells 1403 on both sides begin to extract the hydraulic oil in the first shell 1401, and then the hydraulic oil in the two middle second shells 1403 begins to transfer to the first shell 1401, and the two first moving parts 1404 move downward, and the two first moving parts 1404 jointly drive the support plate 2 and the parts thereon to move downward together until the support plate 2 and the parts thereon return to their original height, and after the moving column 6 and the parts thereon move upward to be fully reset, the staff turns off the hydraulic push rod 4 and starts the electric slide rail and the electric slider to move the first sliding plate 3 and the parts thereon to the left. After fully reset, the electric slide rail and the electric slider are turned off, and then the workpiece shell 101 that has completed hot pressing is taken out from the lower mold.

[0044] When the vacuum cover 9 moves downward, the vacuum cover 9 drives the two mounting rods 1304 to move downward together, and the mounting rods 1304 drive the adjacent extrusion columns 1305 and the adjacent second elastic elements 1306 to move downward together. When the extrusion columns 1305 move downward to enter the second grooves 1307, as the extrusion columns 1305 continue to move downward, the extrusion columns 1305 begin to squeeze the adjacent second grooves 1307, and the adjacent limiting columns 1302 begin to rotate counterclockwise (in the top view). During the process, the extrusion columns 1305 are squeezed by the adjacent second grooves 1307 and slide relative to the adjacent mounting rods 1304. The adjacent second elastic elements 1306 are compressed, and the limiting columns 1302 drive the adjacent gears 1303 to rotate counterclockwise together. The two counterclockwise rotating gears 1303 jointly drive the gear ring 1301. They rotate counterclockwise together, and the gear ring 1301 drives the second sealing ring 1101 to rotate counterclockwise together through the rotating ring 8, so as to change the deflection angle of the first groove 1103, so that the first groove 1103 contacts with different areas on the first sealing ring 10 one by one, thereby preventing the area at the same position on the first sealing ring 10 from being repeatedly deformed, resulting in too many cyclic stresses, losing the ability to work normally, and affecting the vacuum environment in the subsequent hot pressing process. In the process of the moving column 6 moving upward, the mounting rod 1304 drives the adjacent extrusion column 1305 to move upward together, and the extrusion column 1305 moves upward along the adjacent third groove 1308. When the extrusion column 1305 moves upward to disengage from the adjacent third groove 1308, the two extrusion columns 1305 begin to move toward each other and reset under the action of the elastic force of the adjacent second elastic element 1306.

[0045] During the process of the first sliding plate 3 moving to the left, the first sliding plate 3 drives the second moving member 1502 to move to the left together. After the second moving member 1502 moves to the left until it contacts the second sliding plate 1506, the second moving member 1502 drives the second sliding plate 1506 to move to the left together. The second sliding plate 1506 and the air outlet shell 1501 slide relative to each other. The third elastic element 1507 is compressed, and the air in the left part of the air outlet shell 1501 is compressed and enters the cavity of the sliding member 1504 through the intermediate tube 1505. Then the compressed air enters the first cavity 1602 and squeezes the ejector rod 1503 upward. The ejector rod 1503 and the lower mold 1102 slide relative to each other. The fourth elastic element 1601 is compressed, and the ejector rod 1503 begins to squeeze the workpiece shell 101 upward, so that the workpiece shell 101 is separated from the lower mold 1102, thereby reducing the operating steps of the staff, reducing the work intensity of the staff, and improving the work efficiency.

[0046] When the push rod 1503 moves upward to the air outlet 1603 on it to leak out of the lower mold 1102, the air with a certain pressure in the first cavity 1602 is discharged and gradually fills the space between the workpiece shell 101 and the lower mold 1102, so that the workpiece shell 101 and the lower mold 1102 are fully separated, preventing the push rod 1503 from simply moving upward to squeeze the workpiece shell 101, causing the workpiece shell 101 to be subjected to excessive force, thereby causing damage to the workpiece shell 101 and reducing the hot pressing quality of the workpiece shell 101. When the air between the workpiece shell 101 and the lower mold 1102 is discharged to the external environment, the pressure in the cavity of the sliding member 1504 is reduced. At this time, the push rod 1503 is reset under the action of the elastic force of the fourth elastic element 1601.

[0047] During the process of the first sliding plate 3 moving to the right, the first sliding plate 3 drives the second moving member 1502 to move to the right together, and the second moving member 1502 gradually loses the squeeze on the second sliding plate 1506. The second sliding plate 1506 starts to move to the right and reset under the action of the elastic force of the third elastic element 1507, and the outside air enters the left part of the air outlet shell 1501 through the one-way air valve on the second sliding plate 1506, ready for next use.

[0048] In the process of unloading, the existing vacuum high-temperature hot press simply puts the raw materials into the lower mold 1102. Since the raw materials are granular, during this process, the raw materials will be ejected from the hot pressing area when they contact the lower mold 1102, resulting in a reduction in the amount of raw materials, thereby affecting the hot pressing quality.

[0049] Embodiment 2: Based on embodiment 1, Figure 8-Figure 11 As shown, it also includes a feeding mechanism for equal amount of discharge, the feeding mechanism is arranged on the left part of the upper side of the frame 1, the feeding mechanism includes a storage shell 1701, the storage shell 1701 is fixedly connected to the left part of the upper side of the frame 1, the lower side of the storage shell 1701 is provided with four first through holes in an annular array, the left front part of the upper side of the first sliding plate 3 is fixedly connected with a vertical plate 1702, the upper side of the vertical plate 1702 is fixedly connected with a first rack 1703, the lower side of the storage shell 1701 is rotatably connected with a rotating plate 1704, and the rotating plate 1704 is provided with a circular array There are four second through holes in a row, the second through hole on the rotating plate 1704 is connected and matched with the first through hole on the storage shell 1701, and whether to unload material is determined by whether the second through hole is connected to the adjacent first through hole. A connecting frame 1705 is fixedly connected to the left front part of the lower side of the rotating plate 1704, and the connecting frame 1705 is fixedly connected to the second rack 1706 that is transmission-matched with the first rack 1703, so that the first rack 1703 drives the second rack 1706 to rotate, and a moving component for lowering the discharge height is arranged on the lower side of the storage shell 1701.

[0050] like Fig. 9 , Fig.10 , Fig.12and Fig.13 As shown, the moving assembly includes a material aggregation shell 1801, which is fixedly connected to the lower side of the material storage shell 1701, and the material aggregation shell 1801 is communicated with the first through hole on the material storage shell 1701. The middle and lower part of the material aggregation shell 1801 is slidably connected with a sliding shell 1802. Through the relative sliding between the material aggregation shell 1801 and the sliding shell 1802, the distance between the sliding shell 1802 and the lower mold 1102 is reduced, thereby preventing the raw material in the sliding shell 1802 from violently colliding and moving out during the process of entering the lower mold 1102. The outer part of the lower side of the sliding shell 1802 is provided with a plurality of third through holes in an annular array, which are used to make the discharged raw material accumulate in the lower mold 1102 in a concave shape. The lower left part of the outer side of the sliding shell 1802 is fixed It is connected to a cross bar 1803, and the lower side of the sliding shell 1802 is slidably connected to several sealing plates 1804 in an annular array. The sealing plate 1804 is sealed with the adjacent third through hole on the sliding shell 1802. The sealing plate 1804 is fixedly connected to two sliding rods 1805 arranged in a mirror image. The sliding rods 1805 are slidably connected to the sliding shell 1802. A fifth elastic element 1806 is fixedly connected between the sliding rod 1805 and the sliding shell 1802. The fifth elastic element 1806 is a spring. The fifth elastic element 1806 is used to reset the adjacent sliding rods 1805. An extrusion component is provided between the aggregate shell 1801 and the sliding shell 1802 for making the sliding shell 1802 and the annular array sealing plates 1804 slide relative to each other.

[0051] like Figure 12-14As shown, the extrusion assembly includes a plurality of sliding columns 1901 in an annular array, and the plurality of sliding columns 1901 are all slidably connected to the sliding shell 1802. The sliding columns 1901 are in contact with the aggregate shell 1801. A sixth elastic element 1902 is fixedly connected between the sliding columns 1901 and the aggregate shell 1801. The sixth elastic element 1902 is an elastic rubber and is used to reset the adjacent sliding columns 1901. The aggregate shell 1801 is provided with a second cavity 1903. The sliding shell 1802 slides in the second cavity 1903. The sliding shell 1802 is provided with a plurality of first channels 1904 in an annular array. The lower side of the sliding shell 1802 is provided with a plurality of second channels 1905 in an annular array and arranged in a mirror image. The second cavity 1903 and the first channel 1904 are both filled with a transmission medium, and the transmission medium is nitrogen. The second channel 1905 is connected with the adjacent first channel 1904, the sliding rod 1805 slides in the adjacent second channel 1905, the sliding column 1901 is provided with a third channel 1906, the third channel 1906 is connected with both the second cavity 1903 and the adjacent first channel 1904, the sliding column 1901 is provided with four fourth channels 1907 in an annular array, the fourth channel 1907 is connected with the second cavity 1903, the fourth channel 1907 is connected and cooperates with the adjacent first channel 1904, and the fourth channel 1907 is connected with the adjacent first channel 1904, so that the compressed nitrogen in the second cavity 1903 enters several first channels 1904 in the annular array, and a one-way valve 1908 is installed in the third channel 1906, and the flow direction of the one-way valve 1908 is from top to bottom.

[0052] In order to improve the efficiency of hot pressing the workpiece shell 101, the material storage shell 1701 and the rotating plate 1704 rotate relative to each other, so that the raw material automatically and quantitatively enters between the material collection shell 1801 and the sliding shell 1802, thereby reducing the operating steps of the staff and reducing the work intensity of the staff. The detailed steps are as follows: when the workpiece shell 101 needs to be hot-pressed, the staff first places the raw material in the material storage shell 1701. During the movement of the first sliding plate 3 to the right, the first sliding plate 3 drives the first rack 1703 to move to the right together, and the first rack 1703 drives the first rack 1703 to move to the right together. The second rack 1706 rotates counterclockwise (looking down), the second rack 1706 drives the connecting frame 1705 to rotate counterclockwise, the connecting frame 1705 drives the rotating plate 1704 to rotate counterclockwise, the second through hole on the rotating plate 1704 is gradually connected with the adjacent first through hole on the storage shell 1701, and then the raw material in the storage shell 1701 enters between the aggregate shell 1801 and the sliding shell 1802 until the raw material fills the space between the aggregate shell 1801 and the sliding shell 1802, at which time the first rack 1703 moves to the right to disengage from the second rack 1706.

[0053] In the process of the first sliding plate 3 moving to the left, the first sliding plate 3 drives the parts thereon to move to the left together. When the first rack 1703 moves to the left until it meshes with the second rack 1706, as the first rack 1703 continues to move to the left, the second rack 1706 starts to rotate clockwise. The second rack 1706 drives the rotating plate 1704 to rotate clockwise through the connecting frame 1705. The second through hole on the rotating plate 1704 is aligned with the adjacent first through hole on the storage shell 1701. Gradually staggered, when the first sliding plate 3 moves to the left to the extreme position, the second through hole on the rotating plate 1704 is completely staggered with the adjacent first through hole on the storage shell 1701, and after the staff takes out the hot-pressed workpiece shell 101 from the lower mold 1102, the staff presses down the cross bar 1803, and the cross bar 1803 drives the sliding shell 1802 to move downward together, and the sliding shell 1802 and the gathering shell 1801 slide relative to each other and squeeze the nitrogen in the second cavity 1903.

[0054] During the downward movement of the sliding shell 1802, the sliding shell 1802 drives several sliding columns 1901 to move downward together, and the sliding column 1901 drives the adjacent one-way valve 1908 to move downward together. When the sliding column 1901 moves downward until it contacts the aggregate shell 1801, as the sliding shell 1802 continues to move downward, the sliding column 1901 moves upward relative to the sliding shell 1802, and the adjacent sixth elastic element 1902 is compressed. When the sliding column 1901 moves upward relative to the sliding shell 1802 until the fourth channel 1907 thereon is connected to the adjacent first channel 1904, the compressed nitrogen in the second cavity 1903 is discharged through the adjacent fourth channel 1907. 07 enters the adjacent first channel 1904, and then the nitrogen in the first channel 1904 enters the adjacent second channel 1905 and squeezes the adjacent sliding rod 1805, and the several sliding rods 1805 in the circular array and arranged in a mirror image begin to move towards each other, and the adjacent fifth elastic element 1806 is compressed. The two adjacent and mirror-arranged sliding rods 1805 jointly drive the adjacent blocking plate 1804 to move together, and the blocking plate 1804 gradually loses the blockage of the adjacent third through hole on the sliding shell 1802. The raw material in the sliding shell 1802 passes through the adjacent third through hole thereon and falls downward into the lower mold 1102, thereby completing a single quantitative unloading, thereby improving work efficiency.

[0055] After the unloading is completed, the staff moves the cross bar 1803 upward, and the cross bar 1803 drives the sliding shell 1802 and the parts thereon to move upward together. During the process, the aggregate shell 1801 gradually loses its squeeze on the sliding column 1901, and then the sliding column 1901 begins to reset under the elastic force of the adjacent sixth elastic element 1902 (the sliding column 1901 moves downward relative to the sliding shell 1802), and the fourth channel 1907 gradually loses communication with the adjacent first channel 1904. As the sliding shell 1802 continues to move upward, the second cavity 1907 is 03 decreases and forms a negative pressure, and then the nitrogen in the adjacent first channel 1904 begins to be extracted through the one-way valve 1908. The pressure in the first channel 1904 gradually decreases, and the sliding rods 1805 arranged in a circular array and in a mirror image begin to move backward (reset) under the action of the elastic force of the adjacent fifth elastic element 1806. The two adjacent and mirror-arranged sliding rods 1805 drive the adjacent blocking plates 1804 to move together, and the blocking plates 1804 gradually block the adjacent third through holes on the sliding shell 1802 until all parts are reset.

[0056] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the specification only describe the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A vacuum high-temperature hot press, comprising a frame (1), the frame (1) being slidably connected to a support plate (2), the support plate (2) being slidably connected to a first sliding plate (3), the frame (1) being mounted with a hydraulic push rod (4) and a vacuum pump (5), the telescopic end of the hydraulic push rod (4) being fixedly connected to a moving column (6), the moving column (6) being fixedly connected to an upper mold (7), the first sliding plate (3) being rotatably connected to a rotating ring (8) on a side away from the support plate (2), the moving column (6) being slidably connected to a vacuum cover (9), the vacuum cover (9) being connected to the vacuum pump (5) via a pipeline, the vacuum cover (9) being fixedly connected to a first sealing ring (10) on a side close to the first sliding plate (3), wherein: The second sealing ring (1101) is fixedly connected to a side of the rotating ring (8) close to the first sealing ring (10), and the second sealing ring (1101) is in contact with the first sealing ring (10). A lower mold (1102) is fixedly connected to a side of the first sliding plate (3) close to the upper mold (7) and in contact with the upper mold (7). A heating module and a cooling module are provided on the lower mold (1102) and the upper mold (7). The second sealing ring (1101) is provided with a first groove (1103); a side of the first sliding plate (3) away from the support plate (2) is provided with an adjustment mechanism for enabling the second sealing ring (1101) and the first sealing ring (10) to move relative to each other; a demoulding mechanism for demoulding the workpiece shell (101) is provided in the middle of the frame (1); the adjustment mechanism comprises a gear ring (1301), the gear ring (1301) is rotatably connected to the inside of the first sliding plate (3), and the gear ring (1301) is rotatably connected to the first sliding plate (3). The rotating ring (8) is fixedly connected, the first sliding plate (3) is rotatably connected to a uniformly arranged limiting column (1302) on one side close to the upper mold (7), the limiting column (1302) is fixedly connected to a gear (1303) on one side close to the support plate (2), the gear (1303) is meshed with the gear ring (1301), and the vacuum cover (9) is fixedly connected to a mirror-arranged mounting rod (1304) on one side close to the first blocking ring (10), and the mirror-arranged mounting rod (1304) is fixedly connected to the opposite side. Both are slidably connected with an extrusion column (1305), a second elastic element (1306) is fixedly connected between the extrusion column (1305) and the adjacent mounting rod (1304), the limiting column (1302) is provided with a second groove (1307) and a third groove (1308), the second groove (1307) and the third groove (1308) are respectively limitedly matched with the adjacent extrusion column (1305), and the second groove (1307) is connected with the adjacent third groove (1308) to form a closed groove.

2. The vacuum high-temperature hot press according to claim 1, characterized in that: The movable column (6) is fixedly connected to a movable plate (1201), the movable plate (1201) is slidably connected to a mirror-arranged guide rod (1202), the guide rod (1202) is fixedly connected to the vacuum cover (9), and a first elastic element (1203) is fixedly connected between the guide rod (1202) and the movable plate (1201).

3. The vacuum high-temperature hot press according to claim 2, characterized in that: A first shell (1401) is fixedly connected to a side of the frame (1) away from the hydraulic push rod (4); a connecting rod (1402) arranged in a mirror image is fixedly connected to the movable plate (1201); the vacuum cover (9) and the support plate (2) are both slidably connected to the connecting rod (1402) arranged in a mirror image; a side of the first shell (1401) close to the support plate (2) is fixedly connected to and communicated with a second shell (1403) arranged equidistantly; the first shell (1401) and the second shell (1403) are both filled with a transmission medium; the connecting rod (1402) is slidably connected to an adjacent second shell (1403); the second shell (1403) not connected to the connecting rod (1402) is slidably connected to a first movable member (1404); and the first movable member (1404) is fixedly connected to the support plate (2).

4. The vacuum high-temperature hot press according to claim 1, characterized in that: The demoulding mechanism comprises an air outlet shell (1501), the air outlet shell (1501) is fixedly connected to a side of the frame (1) close to the support plate (2), a second moving member (1502) is fixedly connected to a side of the first sliding plate (3) close to the air outlet shell (1501), a push rod (1503) is slidably connected to the lower mold (1102), the push rod (1503) is in contact with the lower mold (1102), a sliding member (1504) is fixedly connected to a side of the first sliding plate (3) close to the support plate (2), a cavity is arranged in the sliding member (1504), the support plate (2) and the push rod (1503) are both in contact with the sliding member (1504), and the sliding member (1504) is provided with a cavity. 1504) is slidably connected, an intermediate tube (1505) is connected between the cavity on the sliding member (1504) and the air outlet shell (1501), a second sliding plate (1506) is slidably connected inside the air outlet shell (1501), the second sliding plate (1506) is squeezed and matched with the second movable member (1502), a one-way air valve is installed on the second sliding plate (1506), a third elastic element (1507) is fixedly connected between the second sliding plate (1506) and the air outlet shell (1501), and an auxiliary component for blowing air to the workpiece shell (101) is arranged between the push rod (1503) and the sliding member (1504).

5. The vacuum high-temperature hot press according to claim 4, characterized in that: The auxiliary component includes a fourth elastic element (1601), and the fourth elastic element (1601) is fixed between the push rod (1503) and the sliding member (1504). A first cavity (1602) is arranged in the push rod (1503), and the first cavity (1602) is communicated with the cavity on the sliding member (1504). A circular array of air outlet holes (1603) is arranged on a side of the push rod (1503) away from the sliding member (1504), and the air outlet holes (1603) are communicated with the first cavity (1602).

6. The vacuum high-temperature hot press according to claim 1, characterized in that: The invention also comprises a material discharge mechanism for equal amount of material discharge, the material discharge mechanism being arranged on a side of the frame (1) away from the vacuum cover (9), the material discharge mechanism comprising a material storage shell (1701), the material storage shell (1701) being fixedly connected to a side of the frame (1) away from the vacuum cover (9), a side of the material storage shell (1701) close to the support plate (2) being provided with a first through hole in an annular array, the first sliding plate (3) being fixedly connected to a vertical plate (1702), a side of the vertical plate (1702) away from the first sliding plate (3) being fixedly connected to a first rack (1703), and the material storage shell (1701) being close to the support plate ( A rotating plate (1704) is rotatably connected to one side of the support plate (2), the rotating plate (1704) being provided with a second through hole in an annular array, the second through hole on the rotating plate (1704) being communicated and matched with the first through hole on the material storage shell (1701), a connecting frame (1705) is fixedly connected to one side of the rotating plate (1704) close to the support plate (2), the connecting frame (1705) is fixedly connected to a second rack (1706), the second rack (1706) being in transmission cooperation with the first rack (1703), and a moving component for lowering the discharge height is provided on one side of the material storage shell (1701) close to the support plate (2).

7. The vacuum high-temperature hot press according to claim 6, characterized in that: The moving assembly comprises a material collecting shell (1801), the material collecting shell (1801) is fixedly connected to a side of the material storage shell (1701) close to the support plate (2), the material collecting shell (1801) is communicated with a first through hole on the material storage shell (1701), the material collecting shell (1801) is slidably connected to a sliding shell (1802), a side of the sliding shell (1802) away from the material collecting shell (1801) is provided with a circular array of third through holes, the sliding shell (1802) is fixedly connected to a cross bar (1803), and a side of the sliding shell (1802) away from the material collecting shell (1801) is slidably connected to a circular array of third through holes A sealing plate (1804) is provided, wherein the sealing plate (1804) is in sealing cooperation with a third through hole adjacent to the sliding shell (1802), the sealing plate (1804) is fixedly connected with a sliding rod (1805) arranged in a mirror image, the sliding rod (1805) is slidingly connected with the sliding shell (1802), a fifth elastic element (1806) is fixedly connected between the sliding rod (1805) and the sliding shell (1802), and an extrusion component is provided between the aggregate shell (1801) and the sliding shell (1802) for causing the sliding shell (1802) and the sealing plates (1804) in the annular array to slide relative to each other.

8. The vacuum high-temperature hot press according to claim 7, characterized in that: The third through hole on the sliding shell (1802) is located on a side close to the material gathering shell (1801) and is used to allow the discharged raw materials to accumulate in a concave shape in the lower mold (1102).

9. The vacuum high-temperature hot press according to claim 7, characterized in that: The extrusion assembly comprises a circular array of sliding columns (1901), the circular array of sliding columns (1901) are all slidably connected to the sliding shell (1802), the sliding columns (1901) are in contact with the aggregate shell (1801), a sixth elastic element (1902) is fixedly connected between the sliding columns (1901) and the aggregate shell (1801), the aggregate shell (1801) is provided with a second cavity (1903), the sliding shell (1802) slides in the second cavity (1903), the sliding shell (1802) is provided with a circular array of first channels (1904), the side of the sliding shell (1802) away from the storage shell (1701) is provided with a circular array of second channels (1905) arranged in a mirror image, the second cavity (1903) The first channel (1904) and the second channel (1905) are both filled with transmission medium, the second channel (1905) is connected to the adjacent first channel (1904), the sliding rod (1805) slides in the adjacent second channel (1905), the sliding column (1901) is provided with a third channel (1906), the third channel (1906) is connected to the second cavity (1903) and the adjacent first channel (1904), the sliding column (1901) is provided with a fourth channel (1907) in an annular array, the fourth channel (1907) is connected to the second cavity (1903), the fourth channel (1907) is connected and coordinated with the adjacent first channel (1904), and a one-way valve (1908) is installed in the third channel (1906).

Images