High-purity infrared chalcogenide glass and preparation device thereof

Abstract

The invention discloses high-purity infrared chalcogenide glass and a preparation device thereof, the high-purity infrared chalcogenide glass comprises chalcogenide glass raw materials and a deoxidant, and the chalcogenide glass raw materials comprise chalcogenide elements and metal elements. According to the high-purity infrared chalcogenide glass and the preparation device thereof, a first hydraulic cylinder stretches to push one end of a rocking furnace connected with the first hydraulic cylinder to move upwards through a spherical connecting piece and an inserting rod, and at the moment, a second hydraulic cylinder on one side of the first hydraulic cylinder shrinks to pull the other end of the rocking furnace to move downwards through the spherical connecting piece and the inserting rod, so that the rocking furnace swings; when one end of the rocking furnace rotates and moves downwards, the push switch is extruded, the push switch is pressed to control the first hydraulic cylinder to contract to pull the other end of the rocking furnace to move downwards, and meanwhile, the second hydraulic cylinder is controlled to stretch to pull the other end of the rocking furnace to move upwards through the spherical connecting piece and the inserting rod, so that rocking mixing of materials is realized by repeating the steps. And when the smelting is finished, namely the swinging is stopped, the two swinging ends are accurately stopped under the limitation of the first hydraulic cylinder and the second hydraulic cylinder, so that the stopping accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of chalcogenide glass, in particular to high-purity infrared chalcogenide glass and a preparation device thereof. Background Art

[0002] Sulfur glass is a glass with sulfide, selenide and antimonide as main components, including sulfur compound glass containing oxide. It has unique advantages, such as high processing efficiency, precision molding, relatively low raw material cost, and can adapt to a large temperature range. Sulfur glass is widely used in infrared lens materials because it can withstand temperature differences from minus 40 degrees Celsius to plus 70 degrees Celsius, showing its advantages in temperature adaptability. Infrared sulfide glass, that is, infrared optical glass, is a special glass material with infrared transmittance. Infrared sulfide glass needs to be melted in a swing furnace during its preparation. After searching, it is found that the typical melting and preparation device in the prior art is a glass swing furnace and a method for preparing sulfide glass from waste materials in the publication number CN113636742A, which aims to improve the transmittance of the prepared glass. The glass swing furnace is provided with a purification container. Its main feature is that by setting a furnace cover on the top of the furnace body and arranging a third heating device in the furnace cover, the glass swing furnace can form three temperature zones in the process of preparing glass, which not only facilitates the glass to be taken out of the furnace under high temperature conditions and ensures the quality of the glass, but also helps to improve production efficiency.

[0003] In summary, the existing smelting preparation device is mainly driven by a motor to swing, so when the smelting is completed and the swinging stops, the furnace body may stop inaccurately due to inertial impact. In view of the above problems, the existing equipment needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a high-purity infrared chalcogenide glass and a preparation device thereof, so as to solve the problem that the existing smelting preparation device proposed in the above background technology is mainly driven by a motor to swing, so that when the swinging stops at the end of smelting, the furnace body is easily inaccurately stopped due to inertial impact.

[0005] To achieve the above object, the present invention provides the following technical solutions: a high-purity infrared chalcogenide glass and a preparation device thereof,

[0006] A high-purity infrared chalcogenide glass comprises chalcogenide glass raw materials and a deoxidizer, wherein the chalcogenide glass raw materials comprise chalcogenide elements and metal elements, wherein the chalcogenide elements comprise sulfur, selenium and tellurium, and the metal elements comprise gallium, germanium, arsenic and antimony, and the deoxidizer is one or a mixture of two of aluminum, gallium and magnesium, and the content of the deoxidizer is less than or equal to 200 ppm.

[0007] A preparation device for preparing the high-purity infrared chalcogenide glass described above, comprising a rocking furnace and a driven lifting mechanism, wherein the rocking furnace is rotatably connected to the inner side of a battery box and a mounting vertical plate through a rotating shaft, and a reciprocating extension mechanism is arranged below the rocking furnace, and the reciprocating extension mechanism comprises a first hydraulic cylinder, a second hydraulic cylinder, a rotating seat, a spherical connector, an insertion rod, a bottom pad, a buffer bag ring, a telescopic column, a top pad and a push switch, and a second hydraulic cylinder is arranged on one side of the first hydraulic cylinder, and a buffer bag ring is arranged on the outer sides of the first hydraulic cylinder and the second hydraulic cylinder, a rotating seat is arranged on the top of the first hydraulic cylinder and the second hydraulic cylinder, a spherical connector is arranged inside the rotating seat, the spherical connector is rotatably connected to the inside of the rotating seat, and the spherical connector is connected to the outer wall of the rocking furnace through an insertion rod, and a driven lifting mechanism is arranged above the rocking furnace, the bottom of the buffer bag ring is connected to the bottom pad, and the top of the buffer bag ring is connected to the top pad, and a push switch is arranged on the top of the top pad.

[0008] Preferably, the rocking furnace includes a furnace body, a furnace cover, a partition frame, a high-temperature spring, a supporting frame, a limit cover and a limit piece, and the furnace body is connected to the furnace cover, a partition frame is arranged inside the furnace body, and the partition frame is connected to the supporting frame through a high-temperature spring, a supporting frame is connected to the inner side of the supporting frame, and a limit piece is threadedly connected to the supporting frame.

[0009] Preferably, the furnace cover is symmetrically arranged on the furnace body, and the inner wall of the furnace cover is in contact with the side wall of the supporting frame.

[0010] Preferably, a control panel is provided on the top of the battery box, and a box door is connected to the front side of the battery box.

[0011] Preferably, the battery box, the mounting plate and the reciprocating extension mechanism are all arranged on the top of the base, and the top of the mounting plate is connected to the driven lifting mechanism.

[0012] Preferably, the first hydraulic cylinder, the second hydraulic cylinder and the push switch are electrically connected, and the working states of the first hydraulic cylinder and the second hydraulic cylinder are opposite.

[0013] Preferably, the buffer bag ring is connected to the external nozzle network through a pipeline, and the external nozzle network is arranged on an outer wall of one side of the battery box.

[0014] Preferably, the driven lifting mechanism includes an extension plate, a support plate, a vertical pole, a first coil, a second coil, a first permanent magnet, a second permanent magnet, a lifting plate and a reset spring, and a support plate is arranged on the top of the extension plate, the vertical pole is connected through the support plate, and the top of the vertical pole is arranged inside the first coil, and the first permanent magnet is arranged inside the first coil, and the bottom end of the vertical pole is arranged inside the second coil, and the second permanent magnet is arranged inside the second coil, and the second permanent magnet is connected to the bottom of the vertical pole through the lifting plate, the first permanent magnet is connected to the top of the vertical pole through the lifting plate, and the lifting plate is connected to the support plate through the reset spring.

[0015] Preferably, the driven lifting mechanism further comprises a suspension column, and the suspension column is arranged inside the second coil, and the top of the suspension column is connected to the lifting plate inside the second coil.

[0016] Compared with the prior art, the invention has the following beneficial effects: the high-purity infrared chalcogenide glass and the preparation device thereof,

[0017] (1) The present invention can effectively solve the problem that the existing smelting preparation device is mainly driven by a motor to swing, so that when the smelting is completed, the furnace body is easily inaccurately stopped due to inertial impact. The first hydraulic cylinder extends through the spherical connector and the plug rod to push one end of the swing furnace connected to it to move upward. At this time, the second hydraulic cylinder on one side contracts and pulls the other end of the swing furnace downward through the spherical connector and the plug rod, so that the swing furnace swings with the rotating shaft as the center of the circle. When one end of the swing furnace rotates and moves downward, it squeezes the squeezing press switch. The press switch is pressed to control the first hydraulic cylinder to contract and pull the other end of the swing furnace downward through the spherical connector and the plug rod, and at the same time control the second hydraulic cylinder to extend and pull the other end of the swing furnace upward through the spherical connector and the plug rod. In this way, the swing mixing of the materials is achieved by reciprocating. When the smelting is completed, the swinging ends stop accurately under the restrictions of the first hydraulic cylinder and the second hydraulic cylinder, thereby improving the accuracy of the stop position, and making it easier for the external material taking device to clamp the materials inside the swing furnace.

[0018] (2) The present invention can effectively solve the problem of high energy consumption of the existing preparation device, which requires a long time to drive the furnace body to swing back and forth during capacity operation and cannot recycle the kinetic energy of the swing, by using the driven lifting mechanism and the swing furnace in combination. The first hydraulic cylinder and the second hydraulic cylinder alternately extend and contract to control the swing furnace to swing back and forth, while their two ends alternately contact the suspension column and push it upward. During the upward movement of the suspension column, the return spring under the compression support plate installed with the lifting plate is pushed to drive the second permanent magnet and the vertical rod to move upward along the second coil. At the same time, the vertical rod pushes the return spring above the tension support plate of another set of lifting plates to push the first permanent magnet to move upward along the first coil. Similarly, when the swing furnace moves away from the suspension column during the swing process, the suspension column moves downward, so that the first permanent magnet and the second permanent magnet move downward synchronously along the first coil and the second coil respectively. During the reciprocating movement of the first permanent magnet and the second permanent magnet along the first coil and the second coil, electric energy is generated. The generated electric energy is stored in the battery pack inside the battery box through the conversion device to provide auxiliary power for the device, thereby reducing the energy consumption required during the processing of the device and improving the rationality of the device structure.

[0019] (3) The present invention can effectively solve the problem of insufficient utilization of swinging kinetic energy through the coordinated use of the buffer sac ring, the telescopic column and the external nozzle network. The first hydraulic cylinder and the second hydraulic cylinder alternately extend and contract to control the reciprocating swing of the swing furnace, while the two ends of the first hydraulic cylinder and the second hydraulic cylinder alternately squeeze the buffer sac ring, and the buffer sac ring provides auxiliary support for it. At the same time, after the buffer sac ring is compressed, the air flow inside it is discharged into the external nozzle network through the pipeline, and then dispersedly discharged to the interior of the battery box through the external nozzle network to dissipate the heat of the battery pack inside it. That is, by accelerating the air circulation speed inside and outside the battery box, the battery box is helped to dissipate heat, thereby ensuring the normal operation of the battery box and avoiding overheating failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an isometric view of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the swing furnace of the present invention;

[0022] Figure 3 is an isometric view of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall structure of the reciprocating stretching mechanism of the present invention;

[0024] Figure 5 It is a schematic diagram of the overall cross-sectional structure of the driven lifting mechanism of the present invention;

[0025] Figure 6 For the present invention Figure 5 Enlarged structural diagram at A in the middle.

[0026] In the figure: 1, swing furnace; 101, furnace body; 102, furnace cover; 103, partition frame; 104, high temperature spring; 105, bearing frame; 106, limit cover; 107, limit piece; 2, battery box; 3, mounting plate; 4, reciprocating stretching mechanism; 401, first hydraulic cylinder; 402, second hydraulic cylinder; 403, rotating seat; 404, spherical connector; 405, plug rod; 406, bottom plate; 407, buffer bag ring; 4 08. Telescopic column; 409. Top pad; 4010. Push switch; 5. External nozzle network; 6. Rotating shaft; 7. Driven lifting mechanism; 701. Extension plate; 702. Support plate; 703. Vertical pole; 704. First coil; 705. Second coil; 706. First permanent magnet; 707. Second permanent magnet; 708. Lifting plate; 709. Return spring; 7010. Suspension column; 8. Base; 9. Box door; 10. Control panel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-6 The present invention provides a technical solution: a high-purity infrared chalcogenide glass and a preparation device thereof,

[0029] Embodiment 1

[0030] A high-purity infrared chalcogenide glass comprises chalcogenide glass raw materials and deoxidizers. The chalcogenide glass raw materials comprise chalcogenide elements and metal elements, wherein the chalcogenide elements comprise sulfur, selenium and tellurium, and the metal elements comprise gallium, germanium, arsenic and antimony. The vapor pressure of single substances such as selenium is several orders of magnitude smaller than that of their oxides. The raw materials can be heated to 290 degrees to remove the oxide layers on their surfaces, thereby reducing the impurity content and improving the purity. The deoxidizer is one or a mixture of two of aluminum, gallium and magnesium, and the content of the deoxidizer is less than or equal to 200 ppm. The characteristic of sulfur is that it has weak covalent bond characteristics and semiconductor properties, while the characteristics of selenium are similar to those of sulfur and have similar physical and chemical properties. The characteristics of tellurium also have semiconductor properties and a small bandgap width. The addition of gallium, germanium, arsenic and antimony metal elements can further adjust the physical and chemical properties of the chalcogenide glass to meet different application requirements.

[0031] Embodiment 2

[0032] This embodiment is a further description of the above embodiment. It should be understood that this embodiment includes all the aforementioned technical features and is further described in detail.

[0033] A preparation device for preparing a high-purity infrared chalcogenide glass, comprising a rocking furnace 1 and a driven lifting mechanism 7, wherein the rocking furnace 1 is rotatably connected to the battery box 2 and the inner side of the mounting vertical plate 3 through a rotating shaft 6, and a reciprocating extension mechanism 4 is arranged below the rocking furnace 1, and the reciprocating extension mechanism 4 comprises a first hydraulic cylinder 401, a second hydraulic cylinder 402, a rotating seat 403, a spherical connector 404, a plug rod 405, a bottom pad 406, a buffer bag ring 407, a telescopic column 408, a top pad 409 and a push switch 4010, and a second hydraulic cylinder 402 is arranged on one side of the first hydraulic cylinder 401, and the first hydraulic cylinder 401 and A buffer ring 407 is arranged on the outside of the second hydraulic cylinder 402, a rotating seat 403 is arranged on the top of the first hydraulic cylinder 401 and the second hydraulic cylinder 402, and a spherical connector 404 is arranged inside the rotating seat 403, the spherical connector 404 is rotatably connected inside the rotating seat 403, and the spherical connector 404 is connected to the outer wall of the rocking furnace 1 through the insertion rod 405, and a driven lifting mechanism 7 is arranged above the rocking furnace 1, a bottom pad 406 is connected to the bottom of the buffer ring 407, and a top pad 409 is connected to the top of the buffer ring 407, and a press switch 4010 is arranged on the top of the top pad 409

[0034] In a further embodiment, the rocking furnace 1 includes a furnace body 101, a furnace cover 102, a partition frame 103, a high-temperature spring 104, a supporting frame 105, a limit cover 106 and a limit piece 107, and the furnace body 101 is connected to the furnace cover 102, a partition frame 103 is arranged inside the furnace body 101, and the partition frame 103 is connected to the supporting frame 105 through the high-temperature spring 104, the inner side of the supporting frame 105 is connected to the supporting frame 105, and the limit piece 107 is threadedly connected to the supporting frame 105, and the high-temperature spring 104 is a ceramic spring that can withstand 1200°C.

[0035] In a further embodiment, the furnace cover 102 is symmetrically disposed on the furnace body 101 , and the inner wall of the furnace cover 102 is in contact with the side wall of the supporting frame 105 .

[0036] In a further embodiment, a control panel 10 is disposed on the top of the battery box 2 , and a box door 9 is connected to the front side of the battery box 2 .

[0037] In a further embodiment, the battery box 2 , the mounting plate 3 , and the reciprocating extension mechanism 4 are all arranged on the top of the base 8 , and the top of the mounting plate 3 is connected to the driven lifting mechanism 7 .

[0038] In a further embodiment, the first hydraulic cylinder 401 , the second hydraulic cylinder 402 and the push switch 4010 are electrically connected, and the working states of the first hydraulic cylinder 401 and the second hydraulic cylinder 402 are opposite.

[0039] In a further embodiment, the buffer bag ring 407 is connected to the external nozzle network 5 through a pipeline, and the external nozzle network 5 is arranged on an outer wall of one side of the battery box 2.

[0040] In a further embodiment, the driven lifting mechanism 7 includes an extension plate 701, a support plate 702, a vertical rod 703, a first coil 704, a second coil 705, a first permanent magnet 706, a second permanent magnet 707, a lifting plate 708 and a reset spring 709, and a support plate 702 is arranged on the top of the extension plate 701, and the vertical rod 703 is connected through the support plate 702, and the top of the vertical rod 703 is arranged inside the first coil 704, and the first permanent magnet 706 is arranged inside the first coil 704, and the bottom end of the vertical rod 703 is arranged inside the second coil 705, and the second permanent magnet 707 is arranged inside the second coil 705, and the second permanent magnet 707 is connected to the bottom of the vertical rod 703 through the lifting plate 708, the first permanent magnet 706 is connected to the top of the vertical rod 703 through the lifting plate 708, and the lifting plate 708 is connected to the support plate 702 through the reset spring 709.

[0041] In a further embodiment, the driven lifting mechanism 7 further includes a suspension column 7010 , and the suspension column 7010 is disposed inside the second coil 705 , and the top of the suspension column 7010 is connected to the lifting plate 708 inside the second coil 705 .

[0042] Specifically, the furnace cover 102 is first opened, and the support frame 105 is extended from the inside of the furnace body 101 under the push of the high-temperature spring 104. Then, the ampoule bottle containing the chalcogenide glass raw material and the deoxidizer is placed inside the limit cover 106, and then the limiter 107 is rotated to squeeze and limit the ampoule bottle. Then, the furnace cover 102 is used to push the support frame 105 inward until the furnace cover 102 is closed. Then, the control panel 10 is operated to start the device, and the first hydraulic cylinder 401 extends through the spherical connector 404. The rod 405 pushes one end of the rocking furnace 1 connected thereto to move upward, and at this time, the second hydraulic cylinder 402 on one side thereof contracts to pull the other end of the rocking furnace 1 downward through the spherical connector 404 and the rod 405, so that the rocking furnace 1 swings around the rotating shaft 6 as the center of the circle. When one end of the rocking furnace 1 rotates and moves downward, it squeezes the squeezing and pressing switch 4010, and the pressing switch 4010 is pressed to control the first hydraulic cylinder 401 to contract and the second hydraulic cylinder 402 to extend, and so on and so forth to realize the rocking mixing of the materials;

[0043] While the rocking furnace 1 swings back and forth, its two ends alternately contact with the suspension column 7010 and push it upward. During the upward movement of the suspension column 7010, the return spring 709 installed with the lifting plate 708 is pushed to compress the support plate 702, driving the second permanent magnet 707 and the vertical rod 703 to move up along the second coil 705. At the same time, the vertical rod 703 stretches the return spring 709 above the support plate 702 through another set of lifting plates 708, pushing the first permanent magnet 706 to move up along the first coil 704. Similarly, when the rocking furnace 1 moves away from the suspension column 7010 during the swing process, the suspension column 7010 moves downward so that the first permanent magnet 706 and the second permanent magnet 707 synchronously moves down along the first coil 704 and the second coil 705 respectively, and the first permanent magnet 706 and the second permanent magnet 707 generate electric energy in the process of reciprocating along the first coil 704 and the second coil 705. The generated electric energy is stored in the battery pack inside the battery box 2 through the conversion equipment to provide auxiliary power for the device; and after the buffer bag ring 407 is pressurized, the air flow inside it is discharged into the external nozzle network 5 through the delivery pipeline equipped with a one-way exhaust valve, and is ejected through the external nozzle network 5 to accelerate the air circulation speed inside and outside the battery box 2 to help the battery box 2 dissipate heat. In addition, a one-way air intake valve is arranged on the buffer bag ring 407.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-purity infrared chalcogenide glass, characterized in that: The invention comprises chalcogenide glass raw materials and deoxidizers, wherein the chalcogenide glass raw materials comprise chalcogenide elements and metal elements, wherein the chalcogenide elements comprise sulfur, selenium and tellurium, and the metal elements comprise gallium, germanium, arsenic and antimony, and the deoxidizer is one or a mixture of two of aluminum, gallium and magnesium, and the content of the deoxidizer is less than or equal to 200 ppm.

2. A preparation device for preparing the high-purity infrared chalcogenide glass according to claim 1, characterized in that: The invention comprises a rocking furnace (1) and a driven lifting mechanism (7), wherein the rocking furnace (1) is rotatably connected to the battery box (2) and the inner side of the mounting vertical plate (3) via a rotating shaft (6), and a reciprocating extension mechanism (4) is arranged below the rocking furnace (1), wherein the reciprocating extension mechanism (4) comprises a first hydraulic cylinder (401), a second hydraulic cylinder (402), a rotating seat (403), a spherical connector (404), an insert rod (405), a bottom pad (406), a buffer bag ring (407), a telescopic column (408), a top pad (409) and a push switch (4010), and a second hydraulic cylinder (402) is arranged on one side of the first hydraulic cylinder (401), and the first hydraulic cylinder (401) and the second hydraulic cylinder (402) are arranged at the same time. A buffer sac ring (407) is arranged on the outside, a rotating seat (403) is arranged on the top of the first hydraulic cylinder (401) and the second hydraulic cylinder (402), and a spherical connector (404) is arranged inside the rotating seat (403), the spherical connector (404) is rotatably connected inside the rotating seat (403), and the spherical connector (404) is connected to the outer wall of the rocking furnace (1) through an insertion rod (405), and a driven lifting mechanism (7) is arranged above the rocking furnace (1), the bottom of the buffer sac ring (407) is connected to a bottom pad (406), and the top of the buffer sac ring (407) is connected to a top pad (409), and a push switch (4010) is arranged on the top of the top pad (409).

3. A preparation device according to claim 2, characterized in that: The rocking furnace (1) comprises a furnace body (101), a furnace cover (102), a partition frame (103), a high-temperature spring (104), a bearing frame (105), a limit cover (106) and a limit piece (107), wherein the furnace body (101) is connected to the furnace cover (102), a partition frame (103) is arranged inside the furnace body (101), and the partition frame (103) is connected to the bearing frame (105) through the high-temperature spring (104), the inner side of the bearing frame (105) is connected to the bearing frame (105), and the limit piece (107) is threadedly connected to the bearing frame (105).

4. A preparation device according to claim 3, characterized in that: The furnace cover (102) is symmetrically arranged on the furnace body (101), and the inner wall of the furnace cover (102) is in contact with the side wall of the supporting frame (105).

5. A preparation device according to claim 2, characterized in that: A control panel (10) is provided on the top of the battery box (2), and a box door (9) is connected to the front side of the battery box (2).

6. A preparation device according to claim 2, characterized in that: The battery box (2), the mounting plate (3) and the reciprocating extension mechanism (4) are all arranged on the top of the base (8), and the top of the mounting plate (3) is connected to the driven lifting mechanism (7).

7. A preparation device according to claim 2, characterized in that: The first hydraulic cylinder (401), the second hydraulic cylinder (402) and the push switch (4010) are electrically connected, and the working states of the first hydraulic cylinder (401) and the second hydraulic cylinder (402) are opposite.

8. A preparation device according to claim 2, characterized in that: The buffer bag ring (407) is connected to the external nozzle network (5) through a pipeline, and the external nozzle network (5) is arranged on an outer wall of one side of the battery box (2).

9. A preparation device according to claim 2, characterized in that: The driven lifting mechanism (7) comprises an extension plate (701), a support plate (702), a vertical rod (703), a first coil (704), a second coil (705), a first permanent magnet (706), a second permanent magnet (707), a lifting plate (708) and a reset spring (709), wherein a support plate (702) is arranged on the top of the extension plate (701), the vertical rod (703) is connected through the support plate (702), and the top end of the vertical rod (703) is arranged inside the first coil (704), and the first coil (705) is arranged on the top of the extension plate (701). 704), a first permanent magnet (706) is arranged inside the vertical rod (703), the bottom end of the vertical rod (703) is arranged inside the second coil (705), and a second permanent magnet (707) is arranged inside the second coil (705), and the second permanent magnet (707) is connected to the bottom of the vertical rod (703) through a lifting plate (708), the first permanent magnet (706) is connected to the top of the vertical rod (703) through the lifting plate (708), and the lifting plate (708) is connected to the support plate (702) through a reset spring (709).

10. A preparation device according to claim 9, characterized in that: The driven lifting mechanism (7) further comprises a suspension column (7010), and the suspension column (7010) is arranged inside the second coil (705), and the top of the suspension column (7010) is connected to the lifting plate (708) inside the second coil (705).

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