Device suitable for rapid unwrapping of ultra-high molecular weight polyethylene

Abstract

The device comprises a bottom plate, a heating mechanism and a cooling mechanism are fixedly arranged at the two ends of the top of the bottom plate respectively, a support is fixedly arranged in the middle of the top of the bottom plate, a material containing tool is fixedly arranged at the top of the support, and an integrated fixing plate is connected to the middle of one side of the bottom plate; a supporting seat is fixedly connected to the center of the top of the fixing plate, a manipulator is fixedly mounted at the top of the supporting seat, and a control cabinet is fixedly arranged at one corner of the top of the fixing plate; the heating mechanism comprises a heating box, and the cooling mechanism comprises a cooling box. The heating mechanism and the cooling mechanism are integrated, an ultra-high molecular weight polyethylene sample is moved through the mechanical arm and firstly enters the vacuum furnace in the heating box; and after vacuum heating, the ultra-high molecular weight polyethylene is quickly moved into the cooling box, and the ultra-high molecular weight polyethylene is quickly unwound through a vacuum heating method, so that the working efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of ultra-high molecular weight polyethylene unwinding, in particular to a device suitable for rapid unwinding of ultra-high molecular weight polyethylene. Background Art

[0002] Ultra-high molecular weight polyethylene (UHMWPE) is a polymer compound with high strength, high modulus and low friction coefficient, so it is widely used in aerospace, medical and sports equipment. However, during processing and use, UHMWPE may be twisted or entangled, which has a negative impact on its performance and application. Therefore, understanding the untwisting principles and methods of UHMWPE is crucial to improving its processing and use efficiency.

[0003] Existing UHMWPE disentanglement methods include: vacuum heating method, stretching method, sonic disentanglement method and chemical dissolution method. Vacuum heating method: put the UHMWPE sample into a vacuum furnace, heat it to a certain temperature, and then quickly cool it to room temperature. This method can effectively eliminate the entanglement in UHMWPE, but may cause deformation of the sample; stretching method: stretch and release the UHMWPE material to eliminate the entanglement. This method is applicable to small-sized UHMWPE samples, but it is not very practical for large-sized materials; sonic disentanglement method: through the action of ultrasound, the molecular microstructure of UHMWPE is changed to eliminate the entanglement. This method does not affect the physical properties and appearance of UHMWPE, but requires a long processing time; chemical dissolution method: dissolve the UHMWPE sample in a suitable chemical solvent and then re-prepare the material. This method can eliminate the entanglement, but may have adverse effects on UHMWPE, such as changing its molecular weight or chemical structure. In the vacuum heating method, after the ultra-high molecular weight polyethylene sample is vacuum-heated in a vacuum furnace, the ultra-high molecular weight polyethylene sample is manually moved to a cooling cabinet, and the ultra-high molecular weight polyethylene sample is quickly cooled by standing at a low temperature in the cooling cabinet. The work efficiency of manual operation is low. Summary of the invention

[0004] The object of the present invention is to provide a device suitable for rapid untangling of ultra-high molecular weight polyethylene to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device suitable for rapid untangling of ultra-high molecular weight polyethylene, comprising a bottom plate, a heating mechanism and a cooling mechanism are respectively fixedly arranged at the two ends of the top of the bottom plate, a bracket is fixedly arranged in the middle of the top of the bottom plate, a material container is fixedly arranged on the top of the bracket, a fixed plate is connected to the middle of one side of the bottom plate, a support seat is fixedly connected to the center of the top of the fixed plate, a manipulator is fixedly installed on the top of the support seat, and a control cabinet is fixedly arranged at one corner of the top of the fixed plate;

[0006] The heating mechanism comprises a heating box, a first box body is fixedly connected to the bottom of one side of the heating box, a first entrance and exit is opened at the top of the connection between the heating box and the first box body, a vacuum furnace is fixedly installed in the heating box, and a first controller is fixedly installed on the front of the heating box;

[0007] The cooling mechanism includes a cooling box, a second box body is fixedly connected to the bottom of one side of the cooling box, a second entrance and exit is opened at the top of the connection between the cooling box and the second box body, a refrigerator is fixedly installed on the top of the other side of the cooling box, and the cold air outlet of the refrigerator is communicated with the interior of the cooling box, a triangular bracket connected to the bottom of the refrigerator is fixedly arranged on the cooling box, a temperature sensor is fixedly installed on one side of the inner wall of the cooling box, and a second controller is fixedly installed on the front of the cooling box.

[0008] Preferably, the control cabinet is electrically connected to the manipulator, the first controller and the second controller, the first controller is electrically connected to the vacuum furnace, and the second controller is electrically connected to the refrigerator and the temperature sensor.

[0009] Preferably, two first cylinders are fixedly installed on the top of one side of the heating box, a plurality of first air vents are opened on the heating box and located between the two first cylinders, a first infrared sensor located above the first entrance and exit is fixedly installed on the heating box, and the two first cylinders and the first infrared sensor are electrically connected to the first controller.

[0010] Preferably, two second cylinders are fixedly installed on the top of one side of the cooling box, a plurality of second air vents are opened on the cooling box between the two second cylinders, a second infrared sensor located above the second entrance and exit is fixedly installed on the cooling box, and the two second cylinders and the second infrared sensor are electrically connected to the second controller.

[0011] Preferably, cylinder seats are provided at the connection between the heating box and the two first cylinders and at the connection between the cooling box and the two second cylinders, the output ends of the two first cylinders and the output ends of the two second cylinders are fixedly connected with connecting plates, one end of the four connecting plates is fixedly connected with connecting rods, and closing plates are fixedly connected between the two connecting rods connected to the two first cylinders and between the two connecting rods connected to the two second cylinders, one of the closing plates is located inside the heating box, one of the closing plates is located inside the cooling box, and the two closing plates are respectively located above the first entrance and exit and the second entrance and exit.

[0012] Preferably, two slide grooves are provided on the heating box and the cooling box, and the four slide grooves are respectively slidably connected to four connecting rods, and the four slide grooves are respectively located under four cylinder seats.

[0013] Preferably, a second platform and a first platform are fixedly provided on the top of the first box body and the top of the second box body, respectively, and electric guide rails are installed on the top of the second platform and the top of the first platform, and one end of the two electric guide rails extend to the inside of the vacuum furnace and the cooling box respectively, and the tops of the two electric guide rails are respectively transmission-connected with a heating platform and a cooling platform, the heating platform is arranged corresponding to the first entrance and exit, and the cooling platform is arranged corresponding to the second entrance and exit, the electric guide rail on the first box body is electrically connected to the first controller, and the electric guide rail on the second box body is electrically connected to the second controller.

[0014] Preferably, two slide rails located on both sides of the electric guide rail are fixedly installed on the first box body and the second box body, and two sliders are fixedly connected to the top of the slide rails, and the sliders are fixedly connected to the corners of the bottom of the heating platform or the cooling platform. One end of the two slide rails on the first box body extends to the interior of the vacuum furnace, and one end of the two slide rails on the second box body extends to the interior of the cooling box. The ends of the four slide rails extending to the interior of the vacuum furnace and the cooling box are fixedly connected to baffles with rubber pads, and the ends of the four slide rails away from the baffles are fixedly connected to limit seats.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the heating mechanism and the cooling mechanism are integrated into one, the ultra-high molecular weight polyethylene sample is moved by a manipulator, first enters the vacuum furnace in the heating box, is vacuum heated and then quickly moved to the cooling box, the ultra-high molecular weight polyethylene sample is quickly untangled by the vacuum heating method, the working efficiency is high, the vacuum heating and cooling time are accurately controlled, and the deformation of the ultra-high molecular weight polyethylene sample is effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2It is a structural schematic diagram of the manipulator of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the support and material container of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the cooling mechanism of the present invention;

[0020] Figure 5 is a cross-sectional view of the cooling mechanism of the present invention;

[0021] Figure 6 The structure of the heating mechanism of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 7 The structure of the heating mechanism of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 8 is a cross-sectional view of the heating mechanism of the present invention;

[0024] Fig. 9 It is a plan view schematic diagram of the closed plate driving structure of the present invention;

[0025] Fig.10 It is a plan view of the electric guide rail and the heating platform of the present invention;

[0026] Fig.11 It is a plan view of the slide rail and the heating platform of the present invention.

[0027] In the figure: 1, bottom plate; 2, cooling mechanism; 201, cooling box; 202, second box; 203, second platform; 204, refrigerator; 205, second controller; 206, second vent hole; 207, second cylinder; 208, second infrared sensor; 209, second entrance and exit; 210, cooling platform; 211, temperature sensor; 212, tripod; 3, heating mechanism; 301, heating box; 302, first box; 303, first platform; 304, vacuum furnace; 30 5. First controller; 306. First vent hole; 307. First cylinder; 308. First infrared sensor; 309. First entrance and exit; 310. Heating platform; 311. Slider; 312. Limit seat; 313. Closing plate; 314. Slide; 315. Connecting rod; 316. Connecting plate; 317. Cylinder seat; 318. Electric guide rail; 319. Slide rail; 320. Baffle; 4. Manipulator; 5. Bracket; 6. Control cabinet; 7. Support seat; 8. Fixing plate; 9. Material container. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] See also Figure 1-11 The present invention provides a device suitable for rapid disentanglement of ultra-high molecular weight polyethylene, comprising a bottom plate 1, a heating mechanism 3 and a cooling mechanism 2 are fixedly arranged at both ends of the top of the bottom plate 1, a bracket 5 is fixedly arranged in the middle of the top of the bottom plate 1, a material container 9 is fixedly arranged on the top of the bracket 5, a fixed plate 8 is connected to the middle of one side of the bottom plate 1, a support seat 7 is fixedly connected to the center of the top of the fixed plate 8, a manipulator 4 is fixedly installed on the top of the support seat 7, and a control cabinet 6 is fixedly arranged at a corner of the top of the fixed plate 8; an ultra-high molecular weight polyethylene sample and entangled ultra-high molecular weight polyethylene are placed in the material container 9, the ultra-high molecular weight polyethylene sample is moved by the manipulator 4, the ultra-high molecular weight polyethylene sample is placed in the heating mechanism 3, heated to a certain temperature, and then quickly placed in the cooling mechanism 2, so as to effectively eliminate the entanglement in the UHMWPE.

[0030] The heating mechanism 3 includes a heating box 301, a first box body 302 is fixedly connected to the bottom of one side of the heating box 301, a first entrance 309 is opened at the top of the connection between the heating box 301 and the first box body 302, a vacuum furnace 304 is fixedly installed in the heating box 301, and a first controller 305 is fixedly installed on the front of the heating box 301; the ultra-high molecular weight polyethylene sample enters the vacuum furnace 304, and the ultra-high molecular weight polyethylene sample is vacuum heated.

[0031] The cooling mechanism 2 includes a cooling box 201, a second box body 202 is fixedly connected to the bottom of one side of the cooling box 201, a second entrance and exit 209 is opened at the top of the connection between the cooling box 201 and the second box body 202, a refrigerator 204 is fixedly installed on the top of the other side of the cooling box 201, and the cold air outlet of the refrigerator 204 is communicated with the interior of the cooling box 201, a triangular bracket 212 connected to the bottom of the refrigerator 204 is fixedly arranged on the cooling box 201, a temperature sensor 211 is fixedly installed on one side of the inner wall of the cooling box 201, and a second controller 205 is fixedly installed on the front of the cooling box 201; the heated ultra-high molecular weight polyethylene sample enters the cooling box 201 from the second entrance and exit 209, the refrigerator 204 performs cooling to reduce the temperature in the cooling box 201, and the temperature sensor 211 senses the temperature in the cooling box 201.

[0032] The control cabinet 6 is electrically connected to the manipulator 4, the first controller 305 and the second controller 205. The first controller 305 is electrically connected to the vacuum furnace 304. The second controller 205 is electrically connected to the refrigerator 204 and the temperature sensor 211. The control cabinet 6 controls the operation of the manipulator 4, the first controller 305 and the second controller 205. The first controller 305 controls the operation of the vacuum furnace 304. The second controller 205 receives the temperature signal sensed by the temperature sensor 211, and then controls the power of the refrigerator 204 according to a temperature range set in advance, thereby controlling the temperature inside the cooling box 201.

[0033] Two first cylinders 307 are fixedly installed on the top of one side of the heating box 301. A plurality of first ventilation holes 306 are opened on the heating box 301 and are located between the two first cylinders 307. A first infrared sensor 308 is fixedly installed on the heating box 301 and is located above the first entrance and exit 309. The two first cylinders 307 and the first infrared sensor 308 are electrically connected to the first controller 305. After the first infrared sensor 308 senses that the heating platform 310 enters the heating box 301, it sends a signal to the first controller 305. The first controller 305 controls the operation of the two first cylinders 307, and the first ventilation holes 306 are used for ventilation.

[0034] Two second cylinders 207 are fixedly installed on the top of one side of the cooling box 201. A plurality of second air vents 206 are opened on the cooling box 201 and are located between the two second cylinders 207. A second infrared sensor 208 is fixedly installed on the cooling box 201 and is located above the second entrance and exit 209. The two second cylinders 207 and the second infrared sensor 208 are both electrically connected to the second controller 205. After the second infrared sensor 208 senses that the cooling platform 210 has entered the cooling box 201, it sends a signal to the second controller 205. The second controller 205 controls the two second cylinders 207. The second air vents 206 are used for ventilation to avoid explosion accidents caused by excessive air pressure in the cooling box 201, and the diameter of the second air vents 206 needs to be very small to reduce the loss of cold air.

[0035] Cylinder seats 317 are provided at the connection between the heating box 301 and the two first cylinders 307 and at the connection between the cooling box 201 and the two second cylinders 207. The output ends of the two first cylinders 307 and the output ends of the two second cylinders 207 are fixedly connected with connecting plates 316. One end of the four connecting plates 316 is fixedly connected with connecting rods 315. Closing plates 313 are fixedly connected between the two connecting rods 315 connected by the two first cylinders 307 and between the two connecting rods 315 connected by the two second cylinders 207. One of the closing plates 313 is located inside the heating box 301, and one of the closing plates 313 is located inside the cooling box 201. The two closing plates 313 are respectively located above the first entrance and exit 309 and the second entrance and exit 209. The two first cylinders 307 and the two second cylinders 207 respectively drive the two closing plates 313 to move up and down to control the opening and closing of the first entrance and exit 309 and the second entrance and exit 209.

[0036] Two slide grooves 314 are provided on the heating box 301 and the cooling box 201 . The four slide grooves 314 are slidably connected to four connecting rods 315 , respectively. The four slide grooves 314 are respectively located below four cylinder seats 317 , and the connecting rods 315 slide along the slide grooves 314 .

[0037] The second platform 203 and the first platform 303 are fixedly arranged on the top of the first box body 302 and the top of the second box body 202, respectively. The top of the second platform 203 and the top of the first platform 303 are both installed with electric guide rails 318. One end of the two electric guide rails 318 extends to the inside of the vacuum furnace 304 and the cooling box 201 respectively. The tops of the two electric guide rails 318 are respectively connected to the heating platform 310 and the cooling platform 210. The heating platform 310 is arranged corresponding to the first entrance and exit 309, and the cooling platform 210 is arranged corresponding to the second entrance and exit 209. The electric guide rail 318 on the first box body 302 is electrically connected to the first controller 305. The electric guide rail 318 on the second box body 202 Electrically connected to the second controller 205, the first controller 305 controls the electric guide rail 318 on the first platform 303 to work, the electric guide rail 318 drives the heating platform 310 to move, so that the heating platform 310 enters and exits the vacuum furnace 304, and the ultra-high molecular weight polyethylene sample is placed on the heating platform 310, thereby driving the ultra-high molecular weight polyethylene sample to enter and exit the vacuum furnace 304, and the second controller 205 controls the electric guide rail 318 on the second platform 203 to work, the electric guide rail 318 drives the cooling platform 210 to move, so that the cooling platform 210 enters and exits the cooling box 201, and the ultra-high molecular weight polyethylene sample is placed on the cooling platform 210, thereby driving the ultra-high molecular weight polyethylene sample to enter and exit the cooling box 201.

[0038] Two slide rails 319 located on both sides of the electric guide rail 318 are fixedly installed on the first box body 302 and the second box body 202, and two sliders 311 are fixedly connected to the top of the slide rails 319. The sliders 311 are fixedly connected to the corners of the bottom of the heating platform 310 or the cooling platform 210. One end of the two slide rails 319 on the first box body 302 extends to the interior of the vacuum furnace 304, and one end of the two slide rails 319 on the second box body 202 extends to the interior of the cooling box 201. The ends of the four slide rails 319 extending to the interior of the vacuum furnace 304 and the cooling box 201 are fixedly connected with baffles 320 with rubber pads, and the ends of the four slide rails 319 away from the baffles 320 are fixedly connected to the limiting seats 312. The heating platform 310 and the cooling platform 210 both slide on the two slide rails 319 to improve the stability of the movement of the heating platform 310 and the cooling platform 210.

[0039] When the embodiment of the present application is in use: the manipulator 4 moves the ultra-high molecular weight polyethylene sample in the material container 9 onto the heating platform 310, the electric guide rail 318 drives the heating platform 310 to enter the heating box 301 from the first entrance 309, and then enters the vacuum furnace 304, the two first cylinders 307 drive the closing plate 313 to move downward to close the first entrance 309, and the vacuum furnace 304 is closed at the same time, the vacuum furnace 304 performs vacuum heating on the ultra-high molecular weight polyethylene sample, after the ultra-high molecular weight polyethylene sample is heated to a certain temperature, the vacuum furnace 304 is opened, and the two first cylinders 307 drive the closing plate 313 to move upward to open the first entrance 309, and the electric guide rail 318 drives the heating platform 310 to move out of the vacuum furnace 304 and the heating box 301 from the first entrance 309;

[0040] The manipulator 4 moves the heated ultra-high molecular weight polyethylene sample to the cooling platform 210, and the electric guide rail 318 drives the cooling platform 210 to enter the cooling box 201 from the second entrance 209. The two second cylinders 207 drive the closing plate 313 to move downward to close the second entrance 209. The refrigerator 204 performs cooling to reduce the temperature in the cooling box 201. The temperature sensor 211 senses the temperature in the cooling box 201. The second controller 205 receives the temperature signal sensed by the temperature sensor 211, and then controls the power of the refrigerator 204 according to the temperature range set in advance, thereby controlling the temperature in the cooling box 201. The ultra-high molecular weight polyethylene sample in the cooling box 201 is quickly cooled. After a period of time, the two second cylinders 207 drive the closing plate 313 to move upward to open the second entrance 209. The electric guide rail 318 drives the cooling platform 210 to move out of the cooling box 201 from the second entrance 209. The manipulator 4 puts the unwrapped ultra-high molecular weight polyethylene sample back into the material container 9.

[0041] 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 device suitable for rapid untangling of ultra-high molecular weight polyethylene, comprising a bottom plate (1), wherein a heating mechanism (3) and a cooling mechanism (2) are fixedly arranged at both ends of the top of the bottom plate (1), and characterized in that: A bracket (5) is fixedly arranged in the middle of the top of the base plate (1), a material container (9) is fixedly arranged on the top of the bracket (5), a fixed plate (8) is connected to the middle of one side of the base plate (1), a support seat (7) is fixedly connected to the center of the top of the fixed plate (8), a manipulator (4) is fixedly installed on the top of the support seat (7), and a control cabinet (6) is fixedly arranged at a corner of the top of the fixed plate (8); The heating mechanism (3) comprises a heating box (301), a first box body (302) is fixedly connected to the bottom of one side of the heating box (301), a first entrance (309) is provided at the top of the connection between the heating box (301) and the first box body (302), a vacuum furnace (304) is fixedly installed in the heating box (301), and a first controller (305) is fixedly installed on the front of the heating box (301); The cooling mechanism (2) comprises a cooling box (201), the bottom of one side of the cooling box (201) is fixedly connected to a second box body (202), a second entrance (209) is provided at the top of the connection between the cooling box (201) and the second box body (202), a refrigerator (204) is fixedly installed at the top of the other side of the cooling box (201), and the cold air outlet of the refrigerator (204) is communicated with the interior of the cooling box (201), a triangular bracket (5) (212) connected to the bottom of the refrigerator (204) is fixedly arranged on the cooling box (201), a temperature sensor (211) is fixedly installed on one side of the inner wall of the cooling box (201), and a second controller (205) is fixedly installed on the front of the cooling box (201).

2. A device for rapid untangling of ultra-high molecular weight polyethylene according to claim 1, characterized in that: The control cabinet (6) is electrically connected to the manipulator (4), the first controller (305) and the second controller (205), the first controller (305) is electrically connected to the vacuum furnace (304), and the second controller (205) is electrically connected to the refrigerator (204) and the temperature sensor (211).

3. The device for rapid untangling of ultra-high molecular weight polyethylene according to claim 1, characterized in that: Two first cylinders (307) are fixedly installed on the top of one side of the heating box (301), and a plurality of first ventilation holes (306) are opened on the heating box (301) and located between the two first cylinders (307). A first infrared sensor (308) located above the first entrance (309) is fixedly installed on the heating box (301), and the two first cylinders (307) and the first infrared sensor (308) are electrically connected to the first controller (305).

4. The device for rapid untangling of ultra-high molecular weight polyethylene according to claim 1, characterized in that: Two second cylinders (207) are fixedly mounted on the top of one side of the cooling box (201); a plurality of second ventilation holes (206) are opened on the cooling box (201) and are located between the two second cylinders (207); a second infrared sensor (208) is fixedly mounted on the cooling box (201) and is located above the second entrance (209); the two second cylinders (207) and the second infrared sensor (208) are both electrically connected to the second controller (205).

5. The device for rapid untangling of ultra-high molecular weight polyethylene according to claim 1, characterized in that: The connection between the heating box (301) and the two first cylinders (307) and the connection between the cooling box (201) and the two second cylinders (207) are both provided with a cylinder seat (317); the output ends of the two first cylinders (307) and the output ends of the two second cylinders (207) are both fixedly connected with a connecting plate (316); one end of the four connecting plates (316) is fixedly connected with a connecting rod (315); a closing plate (313) is fixedly connected between the two connecting rods (315) connecting the two first cylinders (307) and between the two connecting rods (315) connecting the two second cylinders (207); one of the closing plates (313) is located inside the heating box (301); one of the closing plates (313) is located inside the cooling box (201); and the two closing plates (313) are respectively located above the first entrance (309) and the second entrance (209).

6. The device for rapid untangling of ultra-high molecular weight polyethylene according to claim 1, characterized in that: Two slide grooves (314) are provided on the heating box (301) and the cooling box (201), and the four slide grooves (314) are respectively slidably connected to four connecting rods (315), and the four slide grooves (314) are respectively located below four cylinder seats (317).

7. The device for rapid untangling of ultra-high molecular weight polyethylene according to claim 1, characterized in that: The top of the first box (302) and the top of the second box (202) are respectively fixedly provided with a second platform (203) and a first platform (303); the top of the second platform (203) and the top of the first platform (303) are both installed with electric guide rails (318); one end of the two electric guide rails (318) respectively extends to the inside of the vacuum furnace (304) and the cooling box (201); the tops of the two electric guide rails (318) are respectively connected to a heating platform (310) and a cooling platform (210); the heating platform (310) is correspondingly arranged with the first entrance and exit (309); the cooling platform (210) is correspondingly arranged with the second entrance and exit (209); the electric guide rail (318) on the first box (302) is electrically connected with the first controller (305); and the electric guide rail (318) on the second box (202) is electrically connected with the second controller (205).

8. The device for rapid untangling of ultra-high molecular weight polyethylene according to claim 1, characterized in that: Two slide rails (319) located on both sides of the electric guide rail (318) are fixedly installed on the first box body (302) and the second box body (202); two sliders (311) are fixedly connected to the top of the slide rails (319); the sliders (311) are fixedly connected to the corners of the bottom of the heating platform (310) or the cooling platform (210); one end of the two slide rails (319) on the first box body (302) extends to the inside of the vacuum furnace (304); one end of the two slide rails (319) on the second box body (202) extends to the inside of the cooling box (201); one end of the four slide rails (319) extending to the inside of the vacuum furnace (304) and the cooling box (201) is fixedly connected to a baffle (320) with a rubber pad; one end of the four slide rails (319) away from the baffle (320) is fixedly connected to a limit seat (312).

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