A device and method for preparing high-strength multi-spectral zinc sulfide sheets

Abstract

The present invention discloses a device and method for preparing high-strength multi-spectral zinc sulfide sheets, comprising a bracket and a heating furnace fixed to the top of the bracket, a sealing cover hinged on the top of the heating furnace, a control box fixed to the top of the bracket, a vacuum pump fixedly installed inside the control box, an air inlet of the vacuum pump connected to an exhaust pipe, one end of the exhaust pipe passing through the control box and connected to the surface of the heating furnace, a one-way valve fixed to the surface of the exhaust pipe, a hollow cylinder connected to the surface of the exhaust pipe, and a vacuum sensor provided inside the exhaust pipe. The present invention relates to the technical field of zinc sulfide preparation. The device and method for preparing high-strength multi-spectral zinc sulfide sheets facilitate rapid installation and removal of the vacuum sensor through the provision of a vacuum sensor installation mechanism, facilitate subsequent maintenance and replacement, and are highly convenient to use. The provision of a cooling mechanism facilitates rapid cooling of the heating furnace, thereby improving cooling efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of zinc sulfide preparation, and in particular to a device and method for preparing a high-strength multi-spectrum zinc sulfide sheet. Background Art

[0002] In recent years, with the development of lasers, forward-looking infrared sensors, cameras, and image recognition technologies, the operating spectrum of optical systems has expanded to 0.4-12μm. To meet the requirements of guidance systems for optical windows, optical window materials must possess both excellent optical properties and good mechanical properties. Hot-pressed ZnS materials are known to exhibit excellent mechanical properties, with a hardness of 244kg / mm² and a flexural strength exceeding 100MPa.

[0003] When manufacturing zinc sulfide sheets, zinc sulfide is generally placed in a furnace body for vacuum hot pressing. When the furnace body is evacuated, a vacuum sensor is required to detect whether the furnace body has reached a vacuum state. Existing vacuum sensors are generally fixedly installed, which is not convenient for regular maintenance and replacement, and is not very convenient to use. In addition, the cooling of the outside of the furnace body is generally through natural cooling, which has low cooling efficiency. Therefore, the present invention proposes a preparation device and method for high-strength multi-spectral zinc sulfide sheets to solve the above-mentioned problems. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a device and method for preparing high-strength multi-spectral zinc sulfide sheets, which solves the problems that existing vacuum sensors are generally fixedly installed, inconvenient for regular maintenance and replacement, and not easy to use, and the cooling of the outside of the furnace body is generally through natural cooling, which has low cooling efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a preparation device for high-strength multi-spectrum zinc sulfide sheets, comprising a bracket and a heating furnace fixed on the top of the bracket, a sealing cover hinged on the top of the heating furnace, a control box fixed on the top of the bracket, a vacuum pump fixedly installed inside the control box, an air inlet of the vacuum pump connected to an exhaust pipe, one end of the exhaust pipe passes through the control box and is connected to the surface of the heating furnace, a one-way valve is fixed on the surface of the exhaust pipe, the surface of the exhaust pipe is connected to a hollow cylinder, a vacuum sensor is provided inside the exhaust pipe, a vacuum sensor mounting mechanism is provided on the hollow cylinder, and a cooling mechanism is provided on the bracket.

[0006] The vacuum sensor mounting mechanism includes a disc arranged inside a hollow cylinder, a movable rod is fixed on the top of the disc, a fixing ring is fixed on the top of the movable rod, an insert block is fixed on the outer circumference of the disc, a slot is provided on the inner wall of the hollow cylinder which is adapted to the insert block, an annular groove is provided on the inner wall of the hollow cylinder which is adapted to the insert block, a sliding rod is slidingly passed through the top of the hollow cylinder, a baffle is fixed on the top of the sliding rod, a return spring is sleeved on the surface of the sliding rod, an arc block is fixed on the bottom end of the sliding rod, a groove which is adapted to the arc block is provided on the top of the inner wall of the annular groove, a positioning groove which is adapted to the arc block is provided on the top of the insert block, a suspension rod is fixed on the bottom of the disc, and a mounting disc is fixed on the bottom end of the suspension rod, the vacuum sensor is located below the mounting disc, and an extrusion positioning mechanism is provided below the mounting disc.

[0007] Preferably, a fixed block is fixed to the bottom of the mounting plate, a bidirectional screw is rotated on the right side of the fixed block, both sides of the surface of the bidirectional screw are threadedly connected with splints, the tops of the two splints are slidingly connected to the bottom of the mounting plate, and an adjusting disk is fixed to the right end of the bidirectional screw.

[0008] Preferably, the cooling mechanism comprises a cooling water tank fixed on the top of the bracket, a circulating water pump is fixed on the top of the cooling water tank, and a spiral annular cooling channel is opened on the inner wall of the heating furnace.

[0009] Preferably, the water inlet of the circulating water pump is connected to a conduit running through the interior of the cooling water tank, and the water outlet of the circulating water pump is connected to a water inlet pipe, one end of the water inlet pipe is connected to one end of the spiral annular cooling channel.

[0010] Preferably, one end of the spiral annular cooling channel is connected to a return pipe, and one end of the return pipe is connected to the front of the cooling water tank.

[0011] Preferably, a turntable is rotated on the inner wall of the heating furnace, heating tubes are fixed on both sides of the inner wall of the heating furnace, and a driving motor is fixed on the bottom of the bracket.

[0012] Preferably, the output shaft of the driving motor is fixed with a driving shaft that passes through the interior of the heating furnace, the top of the driving shaft is fixedly connected to the bottom of the turntable, a through hole is opened through the top of the turntable, and a sealing ring is fixed to the bottom of the disc.

[0013] The present invention also discloses a method for using a device for preparing a high-strength multi-spectrum zinc sulfide sheet, which specifically comprises the following steps:

[0014] S1. Open the sealing cover and place the zinc sulfide material on the turntable in the heating furnace. Then start the vacuum pump to evacuate the interior of the heating furnace through the exhaust pipe. The vacuum sensor transmits the signal to the control box to observe whether the interior of the heating furnace is in a vacuum state. Then start the heating tube to heat the zinc sulfide. At the same time, start the drive motor to drive the turntable to rotate through the drive shaft so that the zinc sulfide can be heated evenly.

[0015] S2. After the heating is completed, the circulating water pump can be started, the cooling water inside the cooling water tank is extracted through the conduit, and the cooling water is introduced into the spiral annular cooling channel through the water inlet pipe. The cooling water is returned to the cooling water tank through the return pipe to achieve circulating cooling;

[0016] S3. When the vacuum sensor needs to be repaired, pull the baffle upwards to drive the arc block out of the positioning groove through the sliding rod, and then drive the disc to rotate through the fixed ring and the movable rod so that the insert block can pass through the annular groove and enter the slot. Then pull the fixed ring upwards to pull the vacuum sensor out of the exhaust pipe, and then rotate the adjusting disk to drive the two splints to slide away from each other through the rotation of the two-way screw, and then the vacuum sensor can be removed.

[0017] Beneficial effects

[0018] The present invention provides a device and method for preparing high-strength multi-spectral zinc sulfide sheets. Compared with the prior art, it has the following advantages:

[0019] (1) The preparation device and method of the high-strength multi-spectral zinc sulfide sheet include a vacuum sensor mounting mechanism including a disc arranged inside a hollow cylinder, a movable rod fixed on the top of the disc, a fixed ring fixed on the top of the movable rod, an insert block fixed on the outer periphery of the disc, a slot adapted to the insert block provided on the inner wall of the hollow cylinder, an annular groove adapted to the insert block provided on the inner wall of the hollow cylinder, a sliding rod slidingly passing through the top of the hollow cylinder, a baffle fixed on the top of the sliding rod, a reset spring sleeved on the surface of the sliding rod, an arc block fixed on the bottom end of the sliding rod, a groove adapted to the arc block provided on the top of the inner wall of the annular groove, and the arrangement of the vacuum sensor mounting mechanism facilitates quick installation and disassembly of the vacuum sensor, facilitates later maintenance and replacement, and is highly convenient to use.

[0020] (2) The device and method for preparing the high-strength multi-spectral zinc sulfide sheet include a cooling water tank fixed on the top of the bracket in the cooling mechanism, a circulating water pump fixed on the top of the cooling water tank, a spiral ring cooling channel opened on the inner wall of the heating furnace, a water inlet of the circulating water pump connected to a conduit running through the interior of the cooling water tank, a water outlet of the circulating water pump connected to a water inlet pipe, one end of the water inlet pipe connected to one end of the spiral ring cooling channel, and the setting of the cooling mechanism facilitates rapid cooling of the heating furnace and improves the cooling efficiency.

[0021] (3) The device and method for preparing the high-strength multi-spectrum zinc sulfide sheet are as follows: a turntable is rotated on the inner wall of the heating furnace, heating tubes are fixed on both sides of the inner wall of the heating furnace, a driving motor is fixed on the bottom of the bracket, and the output shaft of the driving motor is fixed with a driving shaft that penetrates the interior of the heating furnace, and the top of the driving shaft is fixedly connected to the bottom of the turntable. Through the arrangement of the turntable, the driving shaft, and the driving motor, the zinc sulfide material can be heated evenly, thereby improving its production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the structure of the present invention;

[0023] Figure 2 It is a three-dimensional diagram of the local structure of the present invention;

[0024] Figure 3 It is a three-dimensional diagram of the hollow cylinder structure of the present invention;

[0025] Figure 4 A schematic diagram of a partial structure of a vacuum sensor mounting mechanism according to the present invention;

[0026] Figure 5 A bottom view of the mounting plate structure of the present invention;

[0027] Figure 6 Schematic diagram of the internal structure of the heating furnace of the present invention.

[0028] In the figure: 1- bracket, 2- heating furnace, 3- sealing cover, 4- control box, 5- vacuum pump, 6- exhaust pipe, 7- one-way valve, 8- hollow cylinder, 9- vacuum sensor, 10- vacuum sensor mounting mechanism, 101- disc, 102- movable rod, 103- fixing ring, 104- plug-in block, 105- slot, 106- annular groove, 107- slide rod, 108- reset spring, 109- arc block, 1010- positioning groove, 1011- suspension rod, 1012 -Mounting plate, 1013-extrusion positioning mechanism, 10131-fixed block, 10132-bidirectional screw, 10133-clamping plate, 10134-adjusting plate, 1014-baffle, 11-cooling mechanism, 111-cooling water tank, 112-circulating water pump, 113-spiral annular cooling channel, 114-conduit, 115-water inlet pipe, 116-return pipe, 12-turntable, 13-heating pipe, 14-drive motor, 15-drive shaft, 16-sealing ring. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-6 The present invention provides a technical solution: a preparation device for high-strength multi-spectrum zinc sulfide sheets, comprising a bracket 1 and a heating furnace 2 fixed on the top of the bracket 1, a sealing cover 3 hinged on the top of the heating furnace 2, a control box 4 fixed on the top of the bracket 1, a vacuum pump 5 fixedly installed inside the control box 4, electrically connected to an external power supply and controlled by a control switch, an air inlet of the vacuum pump 5 connected to an exhaust pipe 6, one end of the exhaust pipe 6 passes through the control box 4 and is connected to the surface of the heating furnace 2, a one-way valve 7 is fixed on the surface of the exhaust pipe 6, the surface of the exhaust pipe 6 is connected to a hollow cylinder 8, a vacuum sensor 9 is provided inside the exhaust pipe 6, which can transmit signals to the control box 4, a vacuum sensor mounting mechanism 10 is provided on the hollow cylinder 8, and a cooling mechanism 11 is provided on the bracket 1.

[0031] The vacuum sensor mounting mechanism 10 includes a disc 101 arranged inside the hollow cylinder 8, a movable rod 102 is fixed to the top of the disc 101, a fixing ring 103 is fixed to the top of the movable rod 102, an insert 104 is fixed to the outer periphery of the disc 101, a slot 105 adapted to the insert 104 is provided on the inner wall of the hollow cylinder 8, an annular groove 106 adapted to the insert 104 is also provided on the inner wall of the hollow cylinder 8, a slide rod 107 slides through the top of the hollow cylinder 8, a baffle 1014 is fixed to the top of the slide rod 107, and a reset spring 108 is provided on the surface of the slide rod 107. The arc block 109 can be stably stuck in the positioning groove 1010. The arc block 109 is fixed to the bottom end of the slide rod 107. The bottom is arc-shaped and can be squeezed by the insert block 104. The top of the inner wall of the annular groove 106 is provided with a groove adapted to the arc block 109. The top of the insert block 104 is provided with a positioning groove 1010 adapted to the arc block 109. The bottom of the disc 101 is fixed with a suspension rod 1011. The bottom end of the suspension rod 1011 is fixed with a mounting plate 1012. The vacuum sensor 9 is located below the mounting plate 1012. An extrusion positioning mechanism 1013 is provided below the mounting plate 1012.

[0032] In an embodiment of the present invention, a fixed block 10131 is fixed to the bottom of the mounting plate 1012, and a bidirectional screw rod 10132 is rotated on the right side of the fixed block 10131. The threads on both sides of the surface are set in opposite directions, and both sides of the surface of the bidirectional screw rod 10132 are threadedly connected with splints 10133. The tops of the two splints 10133 are slidingly connected to the bottom of the mounting plate 1012, and an adjusting disk 10134 is fixed to the right end of the bidirectional screw rod 10132.

[0033] In an embodiment of the present invention, the cooling mechanism 11 includes a cooling water tank 111 fixed on the top of the bracket 1, and a circulating water pump 112 is fixed on the top of the cooling water tank 111, which is electrically connected to an external power supply and controlled by a control switch. A spiral annular cooling channel 113 is opened on the inner wall of the heating furnace 2.

[0034] In an embodiment of the present invention, the water inlet of the circulating water pump 112 is connected to a conduit 114 that runs through the interior of the cooling water tank 111 , and the water outlet of the circulating water pump 112 is connected to a water inlet pipe 115 , one end of which is connected to one end of the spiral annular cooling channel 113 .

[0035] In the embodiment of the present invention, one end of the spiral annular cooling channel 113 is connected to a return pipe 116 , and one end of the return pipe 116 is connected to the front of the cooling water tank 111 .

[0036] In an embodiment of the present invention, a turntable 12 is rotated on the inner wall of the heating furnace 2, and heating tubes 13 are fixed on both sides of the inner wall of the heating furnace 2, which are electrically connected to an external power supply and controlled by a control switch. A driving motor 14 is fixed at the bottom of the bracket 1, which is electrically connected to an external power supply and controlled by a control switch.

[0037] In an embodiment of the present invention, the output shaft of the driving motor 14 is fixed with a driving shaft 15 that passes through the interior of the heating furnace 2. The top of the driving shaft 15 is fixedly connected to the bottom of the turntable 12. A through hole is opened through the top of the turntable 12. A sealing ring 16 is fixed to the bottom of the disc 101, which has a sealing function.

[0038] The present invention also discloses a method for using a device for preparing a high-strength multi-spectrum zinc sulfide sheet, which specifically comprises the following steps:

[0039] S1. Open the sealing cover 3 and place the zinc sulfide material on the turntable 12 in the heating furnace 2. Then start the vacuum pump 5 to evacuate the interior of the heating furnace 2 through the exhaust pipe 6. The vacuum sensor 9 transmits a signal to the control box 4 to observe whether the interior of the heating furnace 2 is in a vacuum state. Then start the heating tube 13 to heat the zinc sulfide. At the same time, start the drive motor 14 to drive the turntable 12 to rotate through the drive shaft 15 so that the zinc sulfide can be heated evenly.

[0040] S2. After heating is completed, the circulating water pump 112 can be started, and the cooling water inside the cooling water tank 111 is extracted through the conduit 114 and introduced into the spiral annular cooling channel 113 through the water inlet pipe 115. The cooling water is returned to the cooling water tank 111 through the return pipe 116 to achieve circulating cooling;

[0041] S3. When the vacuum sensor 9 needs to be repaired, pull the baffle 1014 upwards, and then drive the arc block 109 out of the positioning groove 1010 through the slide rod 107, and then drive the disc 101 to rotate through the fixed ring 103 and the movable rod 102, so that the insert block 104 can pass through the annular groove 106 and enter the slot 105, and then pull the fixed ring 103 upwards to pull the vacuum sensor 9 out of the exhaust pipe 6, and then rotate the adjusting disk 10134, and drive the two splints 10133 to slide away from each other through the rotation of the bidirectional screw rod 10132, and then the vacuum sensor 9 can be removed.

[0042] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for preparing high-strength multi-spectral zinc sulfide sheets, comprising a bracket (1) and a heating furnace (2) fixed on the top of the bracket (1), characterized in that: The top of the heating furnace (2) is hinged with a sealing cover (3), the top of the bracket (1) is fixed with a control box (4), the interior of the control box (4) is fixedly installed with a vacuum pump (5), the air inlet of the vacuum pump (5) is connected with an exhaust pipe (6), one end of the exhaust pipe (6) passes through the control box (4) and is connected with the surface of the heating furnace (2), a one-way valve (7) is fixed on the surface of the exhaust pipe (6), the surface of the exhaust pipe (6) is connected with a hollow cylinder (8), the interior of the exhaust pipe (6) is provided with a vacuum sensor (9), the hollow cylinder (8) is provided with a vacuum sensor mounting mechanism (10), the bracket (1) is provided with a cooling mechanism (11), the inner wall of the heating furnace (2) is provided with a rotating turntable (12), both sides of the inner wall of the heating furnace (2) are fixed with heating pipes (13), and the bottom of the bracket (1) is fixed with a driving motor (14); The vacuum sensor mounting mechanism (10) includes a disk (101) arranged inside a hollow cylinder (8), a movable rod (102) is fixed to the top of the disk (101), a fixed ring (103) is fixed to the top of the movable rod (102), an insert (104) is fixed to the outer periphery of the disk (101), a slot (105) adapted to the insert (104) is provided on the inner wall of the hollow cylinder (8), an annular groove (106) adapted to the insert (104) is also provided on the inner wall of the hollow cylinder (8), a slide rod (107) is slidably passed through the top of the hollow cylinder (8), and a baffle (1014) is fixed to the top of the slide rod (107). The surface of the slide rod (107) is sleeved with a return spring (108), the bottom end of the slide rod (107) is fixed with an arc block (109), the top of the inner wall of the annular groove (106) is provided with a groove adapted to the arc block (109), the top of the insert block (104) is provided with a positioning groove (1010) adapted to the arc block (109), the bottom of the disc (101) is fixed with a suspension rod (1011), the bottom end of the suspension rod (1011) is fixed with a mounting plate (1012), the vacuum sensor (9) is located below the mounting plate (1012), and an extrusion positioning mechanism (1013) is provided below the mounting plate (1012); A fixing block (10131) is fixed to the bottom of the mounting plate (1012), a bidirectional screw rod (10132) is rotatable on the right side of the fixing block (10131), and clamping plates (10133) are threadedly connected to both sides of the surface of the bidirectional screw rod (10132), and the tops of the two clamping plates (10133) are slidably connected to the bottom of the mounting plate (1012), and an adjusting plate (10134) is fixed to the right end of the bidirectional screw rod (10132); The cooling mechanism (11) includes a cooling water tank (111) fixed on the top of the bracket (1), a circulating water pump (112) is fixed on the top of the cooling water tank (111), a spiral annular cooling channel (113) is opened on the inner wall of the heating furnace (2), a water inlet of the circulating water pump (112) is connected to a conduit (114) running through the interior of the cooling water tank (111), a water outlet of the circulating water pump (112) is connected to a water inlet pipe (115), one end of the water inlet pipe (115) is connected to one end of the spiral annular cooling channel (113), one end of the spiral annular cooling channel (113) is connected to a return pipe (116), and one end of the return pipe (116) is connected to the front of the cooling water tank (111).

2. The device for preparing a high-strength multi-spectrum zinc sulfide sheet according to claim 1, characterized in that: The output shaft of the driving motor (14) is fixed with a driving shaft (15) that passes through the interior of the heating furnace (2). The top end of the driving shaft (15) is fixedly connected to the bottom of the turntable (12). A through hole is opened through the top of the turntable (12). A sealing ring (16) is fixed to the bottom of the disc (101).

3. A device for preparing a high-strength multi-spectrum zinc sulfide sheet according to any one of claims 1-2, characterized in that: The method of use specifically includes the following steps: S1. Open the sealing cover (3) and place the zinc sulfide material on the turntable (12) in the heating furnace (2). Then start the vacuum pump (5) to evacuate the interior of the heating furnace (2) through the exhaust pipe (6). The vacuum sensor (9) transmits a signal to the control box (4) to observe whether the interior of the heating furnace (2) is in a vacuum state. Then start the heating tube (13) to heat the zinc sulfide. At the same time, start the drive motor (14) to drive the turntable (12) to rotate through the drive shaft (15) so that the zinc sulfide can be heated evenly. S2. After the heating is completed, the circulating water pump (112) can be started, the cooling water inside the cooling water tank (111) is extracted through the conduit (114), and the cooling water is introduced into the spiral annular cooling channel (113) through the water inlet pipe (115), and the cooling water is returned to the cooling water tank (111) through the return pipe (116) to achieve circulating cooling; S3. When the vacuum sensor (9) needs to be repaired, the baffle (1014) is pulled upward, and the arc block (109) is driven to disengage from the positioning groove (1010) through the slide rod (107), and the disc (101) is driven to rotate through the fixed ring (103) and the movable rod (102), so that the insert block (104) can enter the slot (105) through the annular groove (106), and then the fixed ring (103) is pulled upward to pull the vacuum sensor (9) out of the exhaust pipe (6), and then the adjustment disk (10134) is rotated to drive the two clamping plates (10133) to slide away from each other through the rotation of the bidirectional screw rod (10132), and then the vacuum sensor (9) can be removed.

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