Vacuum drying equipment capable of preventing wall adhesion

Abstract

The invention relates to the technical field of drying equipment, and discloses anti-wall-sticking vacuum drying equipment which comprises two drying cylinders, beating assemblies are arranged on the two drying cylinders, each beating assembly comprises a rotating cylinder rotationally arranged on the outer wall of the corresponding drying cylinder, and a plurality of guide rods with a springback function are arranged on each rotating cylinder in the axial direction of the rotating cylinder in a penetrating mode; the end of the inner side of each guide rod is fixedly provided with a striking block for striking the outer wall of the drying cylinder, the stirring assembly rotates to drive the rotating cylinder to rotate synchronously, the two vacuumizing pipes are both connected with first exhaust pipes, the other end of each first exhaust pipe is provided with a shell, and each shell is provided with a second exhaust pipe. And an adjusting assembly for connecting or disconnecting the exhaust pipe II and the exhaust pipe I is arranged in the shell. According to the device, the phenomenon that materials adhere to the inner wall in the drying process can be avoided, the drying treatment amount of the materials can be increased in unit time, the waiting time is shortened, and therefore the drying efficiency of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of drying equipment, in particular to vacuum drying equipment with the function of preventing wall sticking. Background Art

[0002] In the processing of non-ferrous metal alloys, vacuum drying equipment is mainly used in the pretreatment stage of raw materials to remove moisture from metal powders, particles or additives to avoid oxidation, pores or chemical reactions caused by moisture in subsequent processing, so as to ensure product quality and process stability.

[0003] Existing vacuum drying equipment usually includes a complete set of drying cylinder, vacuum pump, stirring assembly and heating assembly inside the drying cylinder. When in use, the vacuum pump is first used to extract the air in the drying cylinder and form a vacuum state inside it. Then, the stirring assembly and heating assembly are used in conjunction with each other to vacuum dry the metal powder or particles in the drying cylinder.

[0004] During the above operation, when the metal powder or particles are stirred, they are easily adhered to the inner wall of the drying cylinder, affecting the drying effect of the metal powder or particles. Moreover, the drying process is carried out only through one drying cylinder, and the amount of metal powder or particles dried per unit time is limited, which reduces the drying efficiency of the device. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a vacuum drying device that prevents wall sticking.

[0006] In order to solve the above technical problems, the present invention provides a technical solution as follows: a vacuum drying device for preventing wall sticking, comprising two drying cylinders and vacuum pipes on the drying cylinders, wherein a stirring assembly is provided in the drying cylinders; Both drying cylinders are provided with a knocking assembly, which includes a rotating cylinder rotatably arranged on the outer wall of the drying cylinder, a plurality of guide rods with a rebound function are passed through the rotating cylinder along its axial direction, an impact block for knocking the outer wall of the drying cylinder is fixed on the inner end of each guide rod, and an arc-shaped seat is provided at the outer end, and a support seat is sleeved on the outside of each drying cylinder, and a plurality of matching seats adapted to the arc-shaped seat are equidistantly provided on the support seat along the rotation direction of the rotating cylinder, and the rotation of the stirring assembly drives the rotating cylinder to rotate synchronously; Both vacuum tubes are connected to an exhaust pipe 1, and the other end of each exhaust pipe 1 is provided with a shell and an exhaust pipe 2 is provided on the shell. An adjustment component is provided in the shell to connect or cut off the exhaust pipe 2 and the exhaust pipe 1, and an interlocking component is provided between the connection and cut-off of the two adjustment components and the cut-off and connection and connection.

[0007] As an improvement, the stirring assembly includes a stirring shaft 1 rotatably arranged at the center of the drying cylinder, a gear 1 is provided on the stirring shaft 1, a planetary carrier is fixed on the top surface of the drying cylinder and three gears 2 that are engaged with gear 1 are rotatably provided on this planetary carrier, and a gear ring that is engaged with the three gears 2 is fixed on the top surface of the rotating cylinder.

[0008] As an improvement, the adjustment component includes two sealing plates that seal the exhaust pipe one and the exhaust pipe two respectively. A lifting slide rod is provided through the shell, and a linkage component connected to the two sealing plates is provided on the bottom surface of the slide rod. The slide rod rises and drives the two sealing plates to move relative to each other through the linkage component to connect the exhaust pipe one and the exhaust pipe two, and then rises to the top of the exhaust pipe two. An interlocking component is provided between the two shells to drive the two slide rods to move in opposite directions.

[0009] As an improvement, the linkage assembly includes hinged seats 1 respectively arranged at the opposite ends of the two sealing plates, a telescopic rod is provided at the end of the sliding rod extending into the housing, an upper movable seat and a lower movable seat are respectively provided on the cylinder and rod body of the telescopic rod, and a rocker rod is respectively hingedly connected between the upper movable seat, the lower movable seat and the two hinged seats 1 and together form a diamond structure; A cavity is provided on the shell for two sealing plates to extend into, an abutment plate is provided on the lower movable seat to seal the cavity, a positioning piece is provided between the abutment plate and the bottom wall of the shell to fix the two, and a reset spring is also provided between the upper movable seat and the lower movable seat.

[0010] As an improvement, the positioning member includes conical positioning rods arranged at the four corners of the bottom surface of the abutment plate, and a conical cylinder for the conical positioning rods to extend into is provided on the bottom wall of the shell, and a plurality of notches are opened on the conical cylinder along the circumferential direction.

[0011] As an improvement, the interlocking assembly includes two hinged seats respectively arranged on the top of the two sliding rods, and the two hinged seats are respectively hinged with swing arms. The other ends of the swing arms at both ends are hinged with a swing seat, and the middle part of the swing seat is hinged to a support frame fixedly connected to the two shells. The support frame is provided with a fixed seat extending outward, and an electric push rod is also hinged between the fixed seat and the swing seat.

[0012] As an improvement, the diamond structure is divided into two groups and is located on the front and rear sides between the two sealing plates respectively. Connecting frames are respectively provided on the opposite ends of the two upper movable seats and the lower movable seat, and the telescopic rod cylinder and the rod body are respectively connected to the two connecting frames.

[0013] As an improvement, the number of the impact blocks is two and they are symmetrically arranged at both ends of the drying cylinder.

[0014] The beneficial effects of the present invention compared with the prior art are: 1. During the rotation of the stirring assembly, the rotating drum is driven to rotate synchronously, and at the same time, the arc-shaped seat is driven to rotate and cooperate with multiple matching seats in sequence, and then the impact block is driven to perform orderly knocking operations in the circumferential direction of the outer wall of the drying drum and generate a vibration effect. This can prevent the material from sticking to the inner wall of the drying drum during the stirring process, thereby improving the drying effect of the device without increasing the power source; 2. The two drying cylinders are connected to the same external vacuum device and under the action of the adjustment component, one drying cylinder can be used to dry or unload materials while the other drying cylinder is loading or drying other materials, thereby reducing waiting time and improving drying efficiency. 3. With the cooperation of the sliding rod, telescopic rod, upper movable seat, lower movable seat, swing rod, hinged seat 1 and sealing plate, the second exhaust pipe and the first exhaust pipe can be connected or cut off conveniently and quickly by adjusting the lifting and lowering of the sliding rod, thereby improving the convenience of operation of the device; 4. Under the action of the interlocking assembly composed of the swing arm, swing seat, support seat, fixed seat and electric push rod, when one adjustment component is connected or cut off, the other adjustment component can automatically switch and connect and adjust, thereby improving the convenience of the device to control the two adjustment components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of the drying cylinder in the present invention. Figure 1 .

[0017] Figure 3 This is a schematic diagram of the structure of the drying cylinder in the present invention. Figure 2 .

[0018] Figure 4 This invention Figure 3 Enlarged view of point A in the middle.

[0019] Figure 5 It is a partial top view of the structure of the present invention.

[0020] Figure 6 It is a diagram of the internal structure of the adjustment component in the present invention.

[0021] Figure 7 It is a structural diagram of the linkage component in the present invention.

[0022] Figure 8 It is a structural diagram of the present invention in the state where the exhaust pipe 1 and the exhaust pipe 2 are cut off.

[0023] Figure 9 It is a schematic structural diagram of the interlocking assembly in the present invention.

[0024] As shown in the figure: 1. Drying cylinder; 111. Vacuum tube; 112. Exhaust pipe 1; 113. Shell; 114. Exhaust pipe 2; 115. Through pipe; 2. Stirring assembly; 211. Stirring shaft 1; 212. Gear 1; 213. Planetary carrier; 214. Gear 2; 215. Ring gear; 216. Stirring shaft 2; 217. Motor; 3. Beating assembly; 311. Rotating cylinder; 312. Guide rod; 313. Impact block; 314. Arc seat; 315. Support seat; 316. Matching seat; 4. Adjustment assembly ; 411. Sealing plate; 412. Sliding rod; 5. Interlocking assembly; 511. Articulated seat 2; 512. Swing arm; 513. Swing seat; 514. Support frame; 515. Fixed seat; 516. Electric push rod; 6. Linkage assembly; 611. Articulated seat 1; 612. Telescopic rod; 613. Upper moving seat; 614. Lower moving seat; 615. Swing arm; 616. Cavity; 617. Abutment plate; 618. Return spring; 619. Connecting frame; 620. Conical positioning rod; 621. Conical cylinder; 622. Notch. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4 As shown, a vacuum drying device for preventing wall sticking is provided, comprising two drying cylinders 1 and a vacuum pipe 111 on the drying cylinder 1, a stirring assembly 2 is provided in the drying cylinder 1, and a knocking assembly 3 is provided on each of the two drying cylinders 1, wherein the knocking assembly 3 comprises a rotating cylinder 311 rotatably arranged on the outer wall of the drying cylinder 1, the rotating cylinder 311 is connected to the upper and lower outer walls of the drying cylinder 1 through a support bearing, a plurality of guide rods 312 with a rebound function are passed through the rotating cylinder 311 along its axial direction, an impact block 313 for knocking the outer wall of the drying cylinder 1 is fixed on the inner end portion of each guide rod 312, and an arc-shaped seat 314 is provided on the outer end portion, and the impact block 313 faces the end of the drying cylinder 1 The surface is a spherical structure. In order to ensure the frequency of knocking on the outer wall of the drying cylinder 1, the number of the impact blocks 313 is two groups and they are symmetrically arranged at both ends of the drying cylinder 1. A support seat 315 is sleeved on the ground outside each drying cylinder 1. The support seat 315 is equidistantly provided with a plurality of matching seats 316 that are adapted to the arc seat 314 along the rotation direction of the rotating cylinder 311. When the arc seat 314 abuts against the matching seat 316 during the rotation process, it can drive the guide rod 312 to slide in the direction of the drying cylinder 1. In order to enable the rotating cylinder 311 to rotate without increasing the power source, the rotating cylinder 311 is driven to rotate synchronously with the rotation of the stirring assembly 2; The two vacuum tubes 111 are connected to an exhaust pipe 112, and the other end of each exhaust pipe 112 is provided with a shell 113 and an exhaust pipe 2 114 is provided on the shell 113. The two exhaust pipes 2 114 are connected to a T-shaped through-tube 115, and the other end of the through-tube 115 is connected to the exhaust port of an external vacuum pump. An adjustment component 4 is provided in the shell 113 to connect or cut off the exhaust pipe 2 114 and the exhaust pipe 1 112, and an interlocking component 5 is provided between the connection and cutoff and the cutoff and connection and connection of the two adjustment components 4.

[0027] Through the above structure, the material to be dried is first injected into a drying cylinder 1, and then the interlocking component 5 and the adjusting component 4 cooperate to connect the exhaust pipe 2 114 and the exhaust pipe 1 112. At this time, the other exhaust pipe 2 114 and the exhaust pipe 1 112 automatically switch operations, and then the air in the drying cylinder 1 is extracted through the external vacuum pump to form a vacuum state inside it, and then the material inside it is evenly dried through the action of the stirring component 2. During the rotation of the stirring component 2, the rotating cylinder 311 is driven to rotate synchronously, and then the arc seat 314 is driven to abut against multiple matching seats 316 in turn, thereby driving the guide rod 312 to slide in the direction of the drying cylinder 1, and at the same time driving the impact block 313 to slide in the direction of the drying cylinder 1 and knocking. During the knocking process, the inner wall of the drying cylinder 1 is vibrated, thereby preventing the material from sticking to the inner wall of the drying cylinder 1 during the stirring process, thereby improving the drying effect of the device; While one drying cylinder 1 is drying the material, the other drying cylinder 1 can load other materials. When one drying cylinder 1 is finished drying and unloading the material, the external vacuum pump is connected to the other drying cylinder 1 to perform vacuum operation, and the material inside the drying cylinder 1 is dried by the stirring component 2 and the knocking component 3, thereby improving the drying efficiency of the device.

[0028] Combined with attachment Figure 1 and attached Figure 5 As shown, the stirring assembly 2 includes a stirring shaft 211 rotatably arranged at the center position of the drying cylinder 1, a gear 212 is provided on the stirring shaft 211, a planetary carrier 213 is fixedly provided on the top surface of the drying cylinder 1 and three gears 2 214 that mesh with the gear 1 212 are rotatably provided on this planetary carrier 213, and the gear 2 214 is provided with a stirring shaft 216 that rotates with the planetary carrier 213 and extends into the drying cylinder 1. Through the cooperation between the stirring shaft 211 and the three stirring shafts 216, the stirring uniformity of the material can be increased, and a gear ring 215 that meshes with the three gears 2 214 is fixedly provided on the top surface of the rotating cylinder 311, and the top end of the stirring shaft 211 is connected to the output shaft of the motor 217.

[0029] The principle of the rotation of the stirring component 2 driving the rotating drum 311 is that the starting motor 217 drives the stirring shaft 1 211 to rotate, and under the action of the engagement of the gear 1 212 with the three gear 2s 214 and the engagement of the three gear 2s 214 with the ring gear 215, the ring gear 215 is driven to rotate, so that the rotating drum 311 can be driven to rotate synchronously while the stirring component 2 rotates, reducing the additional demand for a power source during the process of knocking the outer wall of the drying drum 1.

[0030] Combined with attachment Figure 1 , Attachment Figure 6 , Attachment Figure 7 and attached Figure 8 As shown, the adjustment component 4 includes two sealing plates 411 that seal the exhaust pipe 1 112 and the exhaust pipe 2 114 respectively. A lifting slide rod 412 is provided on the shell 113. A linkage component 6 connected to the two sealing plates 411 is provided on the bottom surface of the slide rod 412. The slide rod 412 rises and drives the two sealing plates 411 to move relative to each other through the linkage component 6 to connect the exhaust pipe 1 112 and the exhaust pipe 2 114, and then rises to the top of the exhaust pipe 2 114. An interlocking component 5 that drives the two slide rods 412 to move in opposite directions is provided between the two shells 113. The linkage assembly 6 includes hinged seats 611 respectively provided at opposite ends of the two sealing plates 411. A telescopic rod 612 is provided at the end of the slide rod 412 extending into the housing 113. An upper movable seat 613 and a lower movable seat 614 are respectively provided on the barrel and rod body of the telescopic rod 612. A rocker rod 615 is hingedly connected between the upper movable seat 613, the lower movable seat 614 and the two hinged seats 611, and together form a diamond structure. In order to ensure the stability of the two sealing plates 411 when sliding relative to or against each other, the diamond structure is provided in two groups and is located on the front and rear sides between the two sealing plates 411. Connecting brackets 619 are provided on the opposite ends of the two upper movable seats 613 and the lower movable seat 614. The cylinder and rod body of the telescopic rod 612 are connected to the two connecting brackets 619 respectively. A cavity 616 is provided on the shell 113 for the two sealing plates 411 to extend into, and an abutment plate 617 for sealing the cavity 616 is provided on the lower movable seat 614. A positioning member is provided between the abutment plate 617 and the bottom wall of the shell 113 to fix the two. The positioning member includes a conical positioning rod 620 arranged at the four corners of the bottom surface of the abutment plate 617, and a conical cylinder 621 is provided on the bottom wall of the shell 113 for the conical positioning rod 620 to extend into, and a plurality of notches 622 are provided on the conical cylinder 621 along the circumferential direction. An abutment seat and a docking seat for use therewith are respectively provided between the abutment plate 617 and the bottom wall of the shell 113, and magnetic blocks are respectively nested on the contact surfaces of the abutment seat and the docking seat. When the two magnetic blocks approach each other, they attract each other. A return spring 618 is also provided between the upper movable seat 613 and the lower movable seat 614.

[0031] The working principle of the adjustment component 4 is that when it is necessary to connect the second exhaust pipe 114 and the first exhaust pipe 112, the control slide rod 412 moves upward, driving the barrel of the telescopic rod 612 to move upward. At this time, under the action of the conical positioning rod 620 and the conical barrel 621 and the cooperation of the two magnetic blocks, the abutment plate 617 and the rod body of the telescopic rod 612 are positioned. Under the action of the four hinged rocker arms 615, the sealing plates 411 at both ends are driven to move relative to each other, and the slide rod 412 is continuously controlled. The sliding rod 412 moves upward, separating the tapered positioning rod 620 from the tapered cylinder 621 and the two magnetic blocks, causing the two sealing plates 411 and the abutting plate 617 to move upward as the sliding rod 412 moves upward. Then, the two sealing plates 411 extend into the cavity 616, connecting the second exhaust pipe 114 and the first exhaust pipe 112. At this time, the abutting plate 617 tightly abuts against the cavity 616, thereby preventing the gas from entering the cavity 616 when the second exhaust pipe 114 and the first exhaust pipe 112 are connected. When it is necessary to cut off the air extraction pipe 2 114 and the air extraction pipe 1 112, the sliding rod 412 is controlled to move downward, and then the telescopic rod 612 is driven to move downward as a whole, and at the same time, the diamond structure, the sealing plates 411 at both ends and the abutment plate 617 are driven to move downward. In the process of the abutment plate 617 moving downward, the conical positioning rod 620 is extended into the conical cylinder 621 to block and position the abutment plate 617. At this time, the two sealing plates 411 and the air extraction pipe 2 114 and the air extraction pipe 1 112 correspond to each other, and the telescopic rod 612 is controlled to move downward again. At this time, the cylinder end of the telescopic rod 612 will move downward, and under the action of the four hinged rocker arms 615, the sealing plates 411 at both ends are driven to move back to back and tightly abut the air extraction pipe 2 114 and the air extraction pipe 1 112. At this time, the air extraction pipe 2 114 and the air extraction pipe 1 112 are cut off.

[0032] Combined with attachment Figure 1 and attached Figure 9 As shown, the interlocking assembly 5 includes a hinged seat 511 respectively arranged on the top of the two sliding rods 412, and a swing arm 512 is hinged on the two hinged seats 511 respectively. The other ends of the swing arms 512 at both ends are hinged to a swing seat 513, and the middle part of the swing seat 513 is hinged to the support frame 514 fixedly connected to the two shells 113. The support frame 514 is provided with a fixed seat 515 extending outward, and an electric push rod 516 is also hinged between the fixed seat 515 and the swing seat 513.

[0033] The working principle of the interlocking component 5 is to control the extension of the electric push rod 516, drive the swing seat 513 to swing, and under the action of the hinged swing arm 512, drive a slide rod 412 to move upward to open an adjustment component 4, and at the same time, the other slide rod 412 moves downward to close the other adjustment component 4, thereby improving the convenience of operation when controlling the adjustment component 4 in this device.

[0034] During the specific implementation of the present invention, the material to be dried is first injected into a drying cylinder 1, and at the same time, a second exhaust pipe 114 is connected to the first exhaust pipe 112. At this time, under the action of the interlocking component 5, the other second exhaust pipe 114 and the first exhaust pipe 112 automatically switch operations, start the external vacuum pump, extract the air in one drying cylinder 1 and form a vacuum state inside it, and then start the stirring component 2 to evenly stir the material inside, and at the same time drive the rotating cylinder 311 to rotate. During the rotation of the rotating cylinder 311, the arc seat 314 is driven to abut against each matching seat 316 in turn, and then the guide rod 312 is driven to slide in the direction of the drying cylinder 1, and at the same time, the impact block 313 is driven to slide in the direction of the drying cylinder 1 and produce an orderly knocking operation, thereby generating vibration on the inner wall of the drying cylinder 1. In this way, the inner wall of the drying cylinder 1 can be prevented from sticking during the material stirring process, thereby improving the drying effect of the present device. While one drying cylinder 1 is stirring the material, the other drying cylinder 1 can load other materials. When one drying cylinder 1 is drying and unloading, its external vacuum pump is connected to the other drying cylinder 1 and vacuum operation is performed, and the material inside the drying cylinder 1 is dried by the stirring component 2 and the knocking component 3, thereby improving the drying efficiency of the device.

[0035] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above and, without departing from the purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A vacuum drying device for preventing wall sticking, comprising two drying cylinders (1) and a vacuum pump (111) on the drying cylinders (1), wherein a stirring assembly (2) is provided in the drying cylinders (1), and characterized in that: Both drying cylinders (1) are provided with a knocking assembly (3), the knocking assembly (3) comprising a rotating cylinder (311) rotatably arranged on the outer wall of the drying cylinder (1), a plurality of guide rods (312) with a rebound function being passed through the rotating cylinder (311) along its axial direction, a striking block (313) for knocking the outer wall of the drying cylinder (1) being fixedly provided at the inner end of each guide rod (312), and an arc-shaped seat (314) being provided at the outer end, a support seat (315) being sleeved on the outside of each drying cylinder (1), a plurality of matching seats (316) adapted to the arc-shaped seat (314) being equidistantly provided on the support seat (315) along the rotation direction of the rotating cylinder (311), and the rotation of the stirring assembly (2) drives the rotating cylinder (311) to rotate synchronously; The two vacuum tubes (111) are connected to an exhaust pipe 1 (112), and the other end of each exhaust pipe 1 (112) is provided with a shell (113) and an exhaust pipe 2 (114) is provided on the shell (113), and an adjustment component (4) is provided in the shell (113) to connect or disconnect the exhaust pipe 2 (114) and the exhaust pipe 1 (112), and an interlocking component (5) is provided between the connection and disconnection and the disconnection and connection of the two adjustment components (4).

2. The vacuum drying equipment for preventing wall sticking according to claim 1, characterized in that: The stirring assembly (2) comprises a stirring shaft (211) rotatably arranged at the center of the drying cylinder (1), a gear (212) being provided on the stirring shaft (211), a planetary frame (213) being fixedly provided on the top surface of the drying cylinder (1), and three gears (214) being rotatably provided on the planetary frame (213) and meshing with the gears (212), and a gear ring (215) being fixedly provided on the top surface of the rotating cylinder (311) and meshing with the three gears (214).

3. The wall-preventing vacuum drying device according to claim 1 or 2, characterized in that: The regulating assembly (4) includes two sealing plates (411) for sealing the exhaust pipe 1 (112) and the exhaust pipe 2 (114) respectively. A lifting slide rod (412) is provided through the shell (113). A linkage assembly (6) connected to the two sealing plates (411) is provided on the bottom surface of the slide rod (412). The slide rod (412) rises through the linkage assembly (6) to drive the two sealing plates (411) to move relative to each other so that the exhaust pipe 1 (112) and the exhaust pipe 2 (114) are connected, and then rises to the top of the exhaust pipe 2 (114). An interlocking assembly (5) is provided between the two shells (113) to drive the two slide rods (412) to move in opposite directions.

4. The vacuum drying equipment for preventing wall sticking according to claim 3, characterized in that: The linkage assembly (6) includes hinged seats (611) respectively arranged at opposite ends of the two sealing plates (411), a telescopic rod (612) is provided at the end of the slide rod (412) extending into the housing (113), an upper movable seat (613) and a lower movable seat (614) are respectively provided on the cylinder and the rod body of the telescopic rod (612), and a rocker rod (615) is respectively hinged between the upper movable seat (613), the lower movable seat (614) and the two hinged seats (611), and together form a diamond structure; A cavity (616) is provided on the housing (113) for the two sealing plates (411) to extend into, an abutment plate (617) is provided on the lower movable seat (614) for sealing the cavity (616), a positioning member is provided between the abutment plate (617) and the bottom wall of the housing (113) to fix the two, and a return spring (618) is also provided between the upper movable seat (613) and the lower movable seat (614).

5. The vacuum drying equipment for preventing wall sticking according to claim 4, characterized in that: The positioning member includes a conical positioning rod (620) arranged at the four corners of the bottom surface of the abutment plate (617), a conical cylinder (621) for the conical positioning rod (620) to extend into is provided on the bottom wall of the shell (113), and a plurality of notches (622) are opened on the conical cylinder (621) along the circumferential direction.

6. The wall-preventing vacuum drying equipment according to claim 3, characterized in that: The interlocking assembly (5) includes two hinged seats (511) respectively arranged on the top of the two sliding rods (412), and the two hinged seats (511) are respectively hinged with swing arms (512). The other ends of the swing arms (512) at both ends are hinged with a swing seat (513), and the middle part of the swing seat (513) is hinged to a support frame (514) fixedly connected to the two shells (510). The support frame (514) is provided with a fixed seat (515) extending outward, and an electric push rod (516) is also hinged between the fixed seat (515) and the swing seat (513).

7. The wall-preventing vacuum drying equipment according to claim 4, characterized in that: The diamond-shaped structures are divided into two groups and are respectively located at the front and rear sides between the two sealing plates (411). Connecting frames (619) are respectively provided on the opposite ends of the two upper movable seats (613) and the lower movable seat (614). The cylinder and the rod body of the telescopic rod (612) are respectively connected to the two connecting frames (619).

8. The wall-preventing vacuum drying equipment according to claim 1, characterized in that: The impact blocks (313) are in two groups and are symmetrically arranged at both ends of the drying cylinder (1).

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