Conveying mechanism of formic acid vacuum furnace

Abstract

The invention relates to the technical field of formic acid vacuum furnace conveying mechanisms, in particular to a formic acid vacuum furnace conveying mechanism and a working method.The formic acid vacuum furnace conveying mechanism comprises a welding assembly which comprises a welding bin and a welding platform arranged in the welding bin, and the working face of the welding platform faces upwards; the conveying assembly is arranged on one side of the welding bin and comprises a feeding box and a discharging box which are connected with the welding bin. And the sealing assembly comprises a vacuumizing system connected with the feeding box, the discharging box and the welding bin, sealing maintaining parts are arranged in the feeding box and the discharging box correspondingly, and the sealing maintaining parts are used for maintaining the vacuum sealing state in the welding bin in the process that materials enter and exit from the feeding box and the discharging box. Through mutual cooperation of the welding assembly, the material conveying assembly and the sealing assembly, in the process of adding welding materials and moving out the welded materials, the interior of the welding furnace can be kept to be in vacuum sealing and operable conditions rapidly, the time consumed for vacuumizing after interruption is shortened, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of formic acid vacuum furnace, in particular to a formic acid vacuum furnace conveying mechanism. BACKGROUND

[0002] The formic acid vacuum furnace is an industrial equipment that uses formic acid as a decarburizing agent, reducing agent or heat transfer medium in a vacuum environment, widely used in material processing, welding and heat treatment fields. By reducing the air pressure in the furnace, reducing the oxygen and other impurities in the air, thereby inhibiting the oxidation of the material; at high temperature, formic acid decomposes into hydrogen and carbon monoxide, these two gases have strong reducing property, can remove the surface of the material oxide layer and other impurities; formic acid vapor in the vacuum environment with the material to be processed, by heat conduction to make the material or welding parts to the required temperature, complete the welding or heat treatment.

[0003] The conveying mechanism in the formic acid vacuum furnace is used to convey the welding material, in the long process of removing the material from the vacuum environment after welding and then taking it out, the formic acid furnace needs to be interrupted all the time, and cannot realize continuous welding work.

[0004] In view of the above reasons, in the prior art, a formic acid vacuum furnace conveying mechanism is needed, which can maintain the rapid vacuum sealing and workable conditions in the process of adding the welding material and removing the material after welding, reduce the time consumed by interrupting and re-evacuating, and improve the production efficiency. SUMMARY

[0005] Some simplifications or omissions may be made in this section as well as in the summary of the application and the title of the application in order to avoid obscuring the purpose of this section, the summary of the application and the title of the application, and such simplifications or omissions are not to be taken into account to limit the scope of the application.

[0006] To solve the problems in the prior art, one of the purposes of the present application is to provide a formic acid vacuum furnace conveying mechanism.

[0007] In order to achieve the above-mentioned target, the present application adopts the following technical scheme: a formic acid vacuum furnace conveying mechanism, comprising, A welding assembly, comprising a welding bin and a welding platform arranged in the welding bin and having a working surface upward, a movable support bottom piece is sealingly connected to the bottom of the welding platform, the support bottom piece adjusts the welding space inside the welding platform by longitudinal movement, a formic acid furnace is arranged on the top of the welding bin and connected therewith, when the welding bin is kept in a vacuum sealing state, the formic acid furnace delivers formic acid vapor to the welding platform for welding; The feeding assembly is arranged on one side of the welding bin and comprises a feeding box and a discharging box connected with the welding bin respectively, the welding bin is provided with a feeding port connected with the feeding box on the side close to the opening of the welding platform, the feeding box is provided with a feeding component for feeding the welding material to the feeding port, the welding bin is provided with a discharging port matched with the discharging box on the side close to the bottom of the welding platform, and the discharging box is provided with a discharging component for taking out the welded material from the discharging port; and The sealing assembly comprises a vacuum pumping system connected with the feeding box, the discharging box and the welding bin respectively, and the feeding box and the discharging box are both provided with a sealing maintaining part for maintaining the vacuum sealing state in the welding bin during the feeding and discharging of the material.

[0008] As a preferred scheme of the formic acid vacuum furnace conveying mechanism, the sealing maintaining part comprises a continuous sealing bin connected with the feeding port or the discharging port, and two groups of temporary sealing bins arranged on the two sides of the continuous sealing bin, the temporary sealing bins are provided with openable and closable closure partitions between the temporary sealing bins and the continuous sealing bin, and the continuous sealing bin and the temporary sealing bins adjust their sealing states by communicating with the vacuum pumping system respectively; When the material is fed and discharged between the continuous sealing bin and the temporary sealing bin, the temporary sealing bin maintains the vacuum sealing state, and when the material is fed and discharged between the temporary sealing bin and the outside, the closure partition on the side of the temporary sealing bin maintains the closed state.

[0009] As a preferred scheme of the formic acid vacuum furnace conveying mechanism, the continuous sealing bin and one group of temporary sealing bins are respectively provided with a group of conveying communication components matched with the welding platform, the welding platform inputs or takes out the material through the conveying communication components, the two groups of conveying communication components are fixedly connected, the two groups of conveying communication components are slidably connected with the continuous sealing bin and the temporary sealing bin respectively, and the two groups of conveying communication components are provided with a sealing groove matched with the closure partition; The sealing maintaining part further comprises a driving component for driving the movement of the conveying communication components, when one group of conveying communication components moves to be communicated with the welding platform, the closure partition is closed and sealed with the sealing groove, and the other group of conveying communication components can be communicated with the outside to output or load the material.

[0010] As a preferred scheme of the formic acid vacuum furnace conveying mechanism, the temporary sealing bin is provided with a bin opening for feeding and discharging the material, and a bin cover slidably connected with the bin opening, the bin cover and the bin opening are sealed during the sliding process, and the temporary sealing bin is provided with a control component for controlling the opening and closing of the bin cover.

[0011] As a preferred embodiment of the formic acid vacuum furnace conveying mechanism of the present invention, the control component includes a strip groove and an arc groove disposed on the inner wall of the temporary sealing chamber. The direction of the strip groove is consistent with the direction in which the chamber cover slides relative to the chamber opening. The end of the arc groove is connected to the middle of the strip groove, and the center of the arc groove coincides with one end of the strip groove. A connecting frame is fixedly installed on one side of the compartment cover. Guide posts one and two, which are adapted to the strip groove, are spaced apart on one side of the connecting frame. Guide posts two are also adapted to the arc groove. The distance between guide posts one and guide posts two is equal to the radius of the arc groove. As the guide post 1 slides from the middle of the strip groove to the end, the hopper cover and the hopper opening slide and separate. As the guide post 2 slides in the arc groove with the guide post 1 as the central axis of rotation, the opening between the hopper cover and the hopper opening increases as it flips.

[0012] As a preferred embodiment of the formic acid vacuum furnace conveying mechanism of the present invention, the temporary sealing chamber is further provided with a second driving component for driving the connecting frame to move. The second driving component includes a driving shaft provided on one side of the temporary sealing chamber and a push shaft provided on one side of the connecting frame and coaxial with the guide column. The end of the driving shaft is provided with a driving rod, and the end of the push shaft is rotatably connected to a connecting rod. A through connecting shaft is rotatably connected between the driving rod and the connecting rod.

[0013] As a preferred embodiment of the formic acid vacuum furnace conveying mechanism of the present invention, the drive shaft includes a drive section and a connecting section coaxially connected. The drive section is connected to the output shaft of the motor, and the connecting section is fixedly connected to the drive rod. A connecting sleeve that is slidably connected to the inner wall of the temporary sealing chamber is provided between the drive section and the connecting section. A set of limiting posts is provided on one side of the drive section and the connecting section respectively. Two sets of limiting grooves that are adapted to the limiting posts are provided on one side of the connecting sleeve. The limiting groove on the side closer to the drive section is connected to the end, and the limiting groove on the side closer to the connecting section is not connected to the end.

[0014] As a preferred embodiment of the formic acid vacuum furnace conveying mechanism of the present invention, wherein: a telescopic spring is also connected between the connecting sleeve and the connecting section; when the telescopic spring is in a compressed state, the two sets of limiting posts are respectively inserted into the corresponding limiting grooves; when the telescopic spring returns to its original length, the limiting posts in the limiting grooves connected to the end are moved out. The inner wall of the temporary sealed chamber is equipped with a trigger for the compression and extension spring of the drive connecting sleeve. The trigger is activated when the closed partition on one side of the temporary sealed chamber is closed.

[0015] As a preferred embodiment of the formic acid vacuum furnace conveying mechanism of the present invention, wherein: the conveying connecting component located in the feed box is a conveying roller, the feeding component includes a connecting roller fixedly disposed on one side of the feed inlet and adapted to the conveying roller, and one end of the connecting roller is connected to the opening of the welding platform; The feeding component also includes a drive unit three located inside the feeding box, used to push the material on the conveying roller and the connecting roller to the opening of the welding platform.

[0016] As a preferred embodiment of the formic acid vacuum furnace conveying mechanism of the present invention, wherein: the conveying connecting component located in the unloading box is an installation connecting frame, the unloading component includes a longitudinal moving mechanism provided in the installation connecting frame for driving the supporting bottom component to move longitudinally, and the driving component is used to drive the installation connecting frame to move between the bottom of the welding platform and the bin opening.

[0017] The beneficial effects of the formic acid vacuum furnace conveying mechanism of the present invention are as follows: By cooperating with the welding components, conveying components and sealing components, the present invention can maintain the welding furnace in a vacuum-sealed and operable condition during the addition of welding materials and the removal of materials after welding, thereby reducing the time spent on interruption and re-vacuuming and improving production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the overall front structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the welding assembly of the present invention.

[0022] Figure 4 This is a front cross-sectional view of the welding assembly of the present invention.

[0023] Figure 5 This is a top-view cross-sectional three-dimensional structural diagram of the entire invention.

[0024] Figure 6 This is a top view cross-sectional structural diagram of the feed box of the present invention.

[0025] Figure 7 This is a front cross-sectional view of the feed box structure when the bin cover is closed according to the present invention.

[0026] Figure 8 This is a front cross-sectional view of the feed box structure after the bin cover slides relative to the bin opening according to the present invention.

[0027] Figure 9 This is a front cross-sectional view of the feed box structure when the bin cover is flipped open according to the present invention.

[0028] Figure 10 This is a three-dimensional structural diagram showing the distribution of the control components relative to the compartment cover in this invention.

[0029] Figure 11 This is a schematic diagram of the connecting sleeve structure when the driving section drives the connecting section to rotate according to the present invention.

[0030] Figure 12 This is a schematic diagram of the connecting sleeve structure when the driving section of the present invention cannot drive the connecting section to rotate.

[0031] Figure 13 This is a schematic diagram of a partial exploded structure at the connecting sleeve of the present invention.

[0032] Figure 14 This is a side view cross-sectional structural diagram of the trigger element of the present invention.

[0033] Figure 15 For the present invention Figure 14 A magnified schematic diagram of the structure at point A shown.

[0034] In the diagram: 100, Welding assembly; 101, Welding chamber; 101a, Feed inlet; 101b, Discharge port; 102, Welding platform; 103, Formic acid furnace; 200, Conveying assembly; 201, Feed box; 201a, Feeding component; 201a-1, Connecting roller; 201a-2, Drive component three; 202, Discharge box; 202a, Discharge component; 300, Sealing assembly; 301, Vacuum system; 302, Sealing maintenance part; 302a, Continuous sealing chamber; 302b, Temporary sealing chamber; 302b-1, Chamber opening; 302b-2, Chamber cover; 302c, Enclosed partition; 302a-1, Conveying connector; 302a-2, Sealing groove; 302d, Drive component one; 303, Control component; 303a, Strip groove; 303b, Circular arc groove; 303c, Connecting bracket; 303c-1, Guide post one; 303c-2, Guide post two; 303d, Driving component two; 303d-1, Drive shaft; 303d-1a, Driving section; 303d-1b, Connecting section; 303d-1c, Connecting sleeve; 303d-1d, Limiting post; 303d-1e, Limiting groove; 303d-1f, Telescopic spring; 303d-2 303d-3, Drive shaft; 303d-4, Connecting rod; 303d-5, Connecting shaft; 304, Trigger; 304a, Tapered sleeve; 304b, Extrusion part; 304b-1, Ball bearing; 304b-2, Return spring; 304b-3, Extrusion groove one; 304b-4, Extrusion rod; 304b-5, Protrusion; 304b-6, Extrusion groove two. Detailed Implementation

[0035] To make the objectives, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0038] Reference Figures 1-10This is the first embodiment of the present invention. This embodiment provides a formic acid vacuum furnace conveying mechanism, which can shorten the time consumed in the process of adding and removing welding materials. It includes: a welding component 100, a conveying component 200 and a sealing component 300. The welding component 100 welds the welding materials, the conveying component 200 conveys the welding materials and the materials after welding, and the sealing component 300 maintains the sealing state of the welding chamber 101 during the welding and conveying process.

[0039] Specifically, the welding assembly 100 includes a welding chamber 101 and a welding platform 102 located within the welding chamber 101 with its working surface facing upwards. The welding platform 102 is a prior art technology, equipped with a robotic arm, which is a rotatable clamping assembly for convenient positioning of the material to be welded and adjustment of the welding surface. A movable support base 102a is sealed to the bottom of the welding platform 102. The support base 102a serves as the bottom of the welding platform 102 and can slide longitudinally relative to the interior of the welding platform 102, up to the point of separation from the welding platform 102. In this embodiment, the welded material moves downwards along with the support base 102a and separates from the welding space for easy removal. The support base 102a adjusts the welding space inside the welding platform 102 by longitudinal movement. A formic acid furnace 103 is connected to the top of the welding chamber 101. When the welding chamber 101 is kept in a vacuum-sealed state, the formic acid furnace 103 delivers high-temperature formic acid vapor towards the welding platform 102 for welding.

[0040] Furthermore, a material conveying assembly 200 is disposed on one side of the welding chamber 101, including a feed box 201 and a discharge box 202 respectively connected to the welding chamber 101. The side of the welding chamber 101 near the opening of the welding platform 102 is provided with a feed port 101a connected to the feed box 201. The feed box 201 is provided with a feeding component 201a for conveying welding materials to the feed port 101a. The side of the welding chamber 101 near the bottom of the welding platform 102 is provided with a discharge port 101b adapted to the discharge box 202. The discharge box 202 is provided with a discharge component 202a for removing the welded material from the discharge port 101b.

[0041] The sealing assembly 300 includes a vacuum system 301 connected to the feed box 201, the discharge box 202, and the welding chamber 101. Both the feed box 201 and the discharge box 202 are equipped with a sealing maintenance part 302 to maintain a vacuum seal within the welding chamber 101 during material entry and exit from these boxes. The vacuum system 301 is existing technology, with a vacuum pump at its core, used to remove gas from the enclosed space to achieve the required vacuum level.

[0042] Furthermore, the sealing maintenance part 302 includes a continuously sealing chamber 302a connected to the feed inlet 101a or the discharge port 101b, and two temporary sealing chambers 302b disposed on both sides of the continuously sealing chamber 302a. That is, the feed box 201 and the discharge box 202 can each be provided with a sealing maintenance part 302. It is worth noting that this embodiment is described in detail with reference to the sealing maintenance part 302 in the feed box 201 in conjunction with the accompanying drawings. The same solution can be implemented in the discharge box 202, so it will not be repeated.

[0043] A closable partition 302c is provided between the temporary sealed chamber 302b and the continuous sealed chamber 302a. Both the continuous sealed chamber 302a and the temporary sealed chamber 302b are connected to the vacuum system 301 to adjust their sealing status. When materials enter or exit between the continuous sealed chamber 302a and the temporary sealed chamber 302b, the temporary sealed chamber 302b maintains a vacuum seal. When materials enter or exit between the temporary sealed chamber 302b and the outside, the partition 302c on one side of the temporary sealed chamber 302b remains closed. By alternately vacuuming the two sets of temporary sealed chambers 302b, the time required for vacuuming after a machine interruption is eliminated. Furthermore, due to the extremely short switching time of the intermediate conveyor connector 302a-1, production efficiency is greatly improved.

[0044] The continuous sealing chamber 302a and one of the temporary sealing chambers 302b are each equipped with a set of conveying connectors 302a-1 adapted to the welding platform 102. The welding platform 102 inputs or outputs materials through the conveying connectors 302a-1. The two sets of conveying connectors 302a-1 are fixedly connected and slidably connected to the continuous sealing chamber 302a and the temporary sealing chamber 302b, respectively. A sealing groove 302a-2 adapted to the closed partition 302c is provided between the two sets of conveying connectors 302a-1. The function of the conveying connectors 302a-1 is to carry and move materials between the continuous sealing chamber 302a and the temporary sealing chamber 302b for easy switching. The closed partition 302c can be designed as a retractable plate and is generally driven by an electric rod, which is a common partition method in the prior art and will not be described further. When the closed partition 302c is opened, it fits into the sealing groove 302a-2, thereby isolating and sealing the adjacent continuous sealing chamber 302a and temporary sealing chamber 302b.

[0045] Preferably, the sealing maintenance part 302 further includes a drive member 302d for moving the conveying connectors 302a-1. When one set of conveying connectors 302a-1 moves to communicate with the welding platform 102, the sealing partition 302c closes and maintains a seal with the sealing groove 302a-2, while the other set of conveying connectors 302a-1 can communicate with the outside to output or load materials. In this embodiment, the drive member 302d is driven by a motor and is a horizontal moving mechanism that can move horizontally and reverse to reset, thereby driving the conveying connectors 302a-1 to switch between different compartments.

[0046] Preferably, the temporary sealed chamber 302b has a chamber opening 302b-1 for material entry and exit on one side, and a chamber cover 302b-2 that can be slidably connected to the chamber opening 302b-1. The chamber cover 302b-2 and the chamber opening 302b-1 maintain a seal during sliding. The temporary sealed chamber 302b has a control component 303 for controlling the opening and closing of the chamber cover 302b-2 on one side. This structure requires the chamber cover 302b-2 to remain parallel to the chamber opening 302b-1 during opening and closing, moving perpendicularly towards or away from the chamber opening 302b-1 a certain distance. Compared with the direct flipping opening and closing method, the connection between the two is a surface seal, with a large sealing range and a better sealing effect. It is also preferable that the chamber cover 302b-2 is molded and retracted towards the chamber opening 302b-1, and the connection surface is an inclined surface, which provides a better seal when they come into contact. This type of cover 302b-2 control method can ensure good sealing when the cover is closed, while also taking into account the flipping of the cover 302b-2 when opening, resulting in a larger opening size of the compartment 302b-1, which is convenient to use.

[0047] Initial feeding process: Upon initial startup, both the silo cover 302b-2 and the sealing partition 302c are opened, and welding material is added to the conveying connector 302a-1 from the silo opening 302b-1. After the welding material has been added to the conveying connector 302a-1 in the continuously sealed silo 302a and one of the temporary sealed silos 302b, the sealing partition 302c on one side of the other temporary sealed silo 302b is closed, and the silo cover 302b-2 is closed to the silo opening 302b-1 through the control component 303, so that the temporary sealed silos 302b containing the material and the continuously sealed silo 302a form an integrated closed space. Then, the vacuum system 301 is used to evacuate the closed space until the operation requirements are met. Then, the welding material on the conveying connector 302a-1 in the continuously sealed silo 302a is conveyed into the welding platform 102 from the feed port 101a through the feeding component 201a.

[0048] Continuing the feeding process: When the welding material on the conveying connector 302a-1 in the continuously sealed chamber 302a is about to be completely conveyed, the control component 303 first closes the chamber opening 302b-1 of the set of temporary sealed chambers 302b that do not contain material, and keeps the sealing partition 302c of this set closed, so that the set of temporary sealed chambers 302b forms a closed space. Then, the vacuum system 301 evacuates the closed space until the operation requirements are met. Then, the sealing partition 302c of this set is opened, so that the two sets of temporary sealed chambers 302b and the continuously sealed chamber 302a are integrated. Then, the drive component 302d drives the two sets of conveying connectors 302a-1. 2a-1 slides within the feed box 201, causing the conveying connector 302a-1 in a set of temporary sealed chambers 302b containing material to quickly move to the continuous sealed chamber 302a. The welding material is then continuously conveyed to the welding platform 102 via the feeding component 201a, resulting in a fast switching time. Meanwhile, the previously idle conveying connector 302a-1 in the continuous sealed chamber 302a is moved to another set of temporary sealed chambers 302b. Then, the sealing partition 302c of the temporary sealed chamber 302b is closed, and the chamber cover 302b-2 is opened to expose the chamber opening 302b-1 for continuous feeding. During this process, the continuous sealed chamber 302a remains vacuum sealed, which does not affect its conveying of material to the welding platform 102. After the welding material is added to the conveying connector 302a-1 of the temporary sealed chamber 302b, the chamber cover 302b-2 is closed and a vacuum is drawn. After the welding material on the conveying connector 302a-1 in the continuous sealed chamber 302a is completely conveyed, the feeding process is repeated. While not affecting the material conveying in the continuous sealed chamber 302a under vacuum, the vacuuming time after interruption and shutdown is eliminated by taking turns to draw a vacuum through the two temporary sealed chambers 302b. Since the switching and moving time of the intermediate conveying connector 302a-1 is extremely short, the production efficiency can be greatly improved.

[0049] Welding process: The welding material on the conveying connector 302a-1 is conveyed through the feed inlet 101a by the feeding component 201a and enters the top of the welding platform 102. The welding platform 102 positions the material to be welded and adjusts the welding surface. After the welding chamber 101 is evacuated by the vacuum system 301 and kept sealed, the formic acid furnace 103 is started to send formic acid vapor toward the welding platform 102 to weld the material. After welding is completed, the support base 102a is controlled to move downward slowly to discharge the welded material.

[0050] Unloading process: After the welding material in the welding platform 102 is welded by formic acid vapor, the formic acid furnace 103 is temporarily shut down. Then, the support base 102a is driven to move longitudinally away from the welding platform 102 and onto the conveying connector 302a-1 of the continuous sealing chamber 302a. The welded material will move with the support base 102a under the action of gravity and then detach from the welding platform 102. Then, the drive component 302d drives the conveying connector 302a-1 to slide relative to the unloading box 202, so that the conveying connector 302a-1 in the temporary sealing chamber 302b drives another set of support bases 102a to cooperate with the bottom of the welding platform 102, quickly completing the shutdown and switching of the welding platform 102. Then, the formic acid furnace 103 can be restarted for welding. Meanwhile, while maintaining a continuous vacuum state in the sealed chamber 302a and the welding chamber 101, the previously welded material is conveyed out of the chamber 302b-1. This process can be referred to as the feeding process, the only difference being that one is feeding and the other is unloading, so it will not be described in detail here. Example 2

[0051] Reference Figures 7-15 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a preferred implementation structure for the control component 303, which can enhance the sealing between the cover 302b-2 and the opening 302b-1, and prevent the cover 302b-2 from being accidentally opened when the sealing partition 302c on the same side is not closed.

[0052] Specifically, the control component 303 includes a strip groove 303a and an arc groove 303b disposed on the inner wall of the temporary sealing chamber 302b. The direction of the strip groove 303a is consistent with the direction in which the chamber cover 302b-2 slides relative to the chamber opening 302b-1. The end of the arc groove 303b is connected to the middle of the strip groove 303a, and the center of the arc groove 303b coincides with one end of the strip groove 303a. The movement of the guide post 303c-1 will drive the connecting frame 303c, the guide post 303c-2, and the chamber cover 302b-2 to move upward together. During this process, the chamber cover 302b-2 and the opening of the chamber opening 302b-1 maintain parallel relative sliding until the chamber cover 302b-2 and the chamber opening 302b-1 go from being mutually sealed to being mutually separated.

[0053] Furthermore, a connecting frame 303c is fixedly installed on one side of the bin cover 302b-2. Guide posts 303c-1 and 303c-2, adapted to the strip groove 303a, are spaced apart on one side of the connecting frame 303c. Guide post 303c-2 is also adapted to the arc groove 303b. The distance between guide posts 303c-1 and 303c-2 is equal to the radius of the arc groove 303b. During the sliding of guide post 303c-1 from the middle to the end of the strip groove 303a, the bin cover 302b-2 and the bin opening 302b-1 slide apart. During the sliding of guide post 303c-2 within the arc groove 303b using guide post 303c-1 as a rotation axis, the opening between the bin cover 302b-2 and the bin opening 302b-1 increases as it is flipped. When guide post 303c-1 moves to the connection between the strip groove 303a and the arc groove 303b, guide post 303c-2 moves to the end of the strip groove 303a. At this time, the drive shaft 303d-1 continues to rotate, which will cause the connecting rod 303d-4 to push the connecting shaft 303d-5 to rotate. Meanwhile, guide post 303c-1 slides from the strip groove 303a into the arc groove 303b along the arc path. The connecting frame 303c and the cover 302b-2 rotate around guide post 303c-2, which makes the opening of the hopper 302b-1 gradually increase, making it easier to load and unload materials.

[0054] Preferably, one side of the temporary sealed chamber 302b is also provided with a second driving component 303d for moving the connecting frame 303c. The second driving component 303d includes a driving shaft 303d-1 located on one side of the temporary sealed chamber 302b. In order to ensure the driving force when the chamber cover 302b-2 is opened and closed, a long, integral driving shaft 303d-1 can be used to pass through both sides of the chamber cover 302b-2 to obtain a stable driving force. In order not to obstruct the movement of materials in the chamber, in this embodiment, the driving shaft 303d-1 is... 3d-1 is symmetrically arranged on both sides of the compartment and driven by motors. The motors on both sides are driven synchronously through program control. One side of the connecting frame 303c has a push shaft 303d-2 coaxial with the guide column 303c-1. The end of the drive shaft 303d-1 has a drive rod 303d-3. The end of the push shaft 303d-2 is rotatably connected to a connecting rod 303d-4. A through connecting shaft 303d-5 is rotatably connected between the drive rod 303d-3 and the connecting rod 303d-4. The drive rod 303d-3 is fixedly connected to the drive shaft 303d-1, so when the drive shaft 303d-1 rotates, the drive rod 303d-3 will rotate around the shaft.

[0055] Preferably, the drive shaft 303d-1 includes a drive section 303d-1a and a connecting section 303d-1b coaxially connected. The drive section 303d-1a is connected to the output shaft of the motor, and the connecting section 303d-1b is fixedly connected to the drive rod 303d-3. A connecting sleeve 303d-1c that is rotatably connected to the inner wall of the temporary sealing chamber 302b is slidably connected between the drive section 303d-1a and the connecting section 303d-1b. A set of limiting posts 303d-1d is provided on one side of the drive section 303d-1a and the connecting section 303d-1b respectively. Two sets of limiting grooves 303d-1e that are adapted to the limiting posts 303d-1d are provided on one side of the connecting sleeve 303d-1c. The limiting groove 303d-1e on the side closer to the drive section 303d-1a is connected to the end, and the limiting groove 303d-1e on the side closer to the connecting section 303d-1b is not connected to the end.

[0056] Among them, a telescopic spring 303d-1f is also connected between the connecting sleeve 303d-1c and the connecting section 303d-1b. When the telescopic spring 303d-1f is in a compressed state, the two sets of limiting posts 303d-1d are respectively inserted into the corresponding limiting grooves 303d-1e. When the telescopic spring 303d-1f returns to its original length, the limiting posts 303d-1d in the limiting grooves 303d-1e that are connected to the end move out. When the telescopic spring 303d-1f is in its original length, the limiting post 303d-1d on one side of the drive section 303d-1a moves out of the corresponding limiting groove 303d-1e, so that when the drive section 303d-1a rotates, it will not drive the connecting sleeve 303d-1c to rotate. The drive trigger 304 drives the connecting sleeve 303d-1c to compress the telescopic spring 303d-1f, so that the two sets of limiting posts 303d-1d fall into the corresponding limiting grooves 303d-1e respectively. Therefore, when the drive section 303d-1a rotates, it will drive the connecting sleeve 303d-1c to rotate through the cooperation of the limiting post 303d-1d and the limiting groove 303d-1e.

[0057] Preferably, the inner wall of the temporary sealing chamber 302b is provided with a trigger 304 for driving the connecting sleeve 303d-1c to compress the telescopic spring 303d-1f. The trigger 304 is driven when the closed partition 302c on one side of the temporary sealing chamber 302b is closed. The trigger 304 can be set to electromagnetic induction control, which is more convenient. In this embodiment, to ensure stable and reliable use, the trigger 304 adopts a mechanical structure trigger, which includes a conical sleeve 304a fixedly disposed on one side of the connecting sleeve 303d-1c, with the larger radius end of the conical sleeve 304a facing the driving section 303d-1a. The inner wall of the temporary sealing chamber 302b is slidably connected with a pressing member 304b adapted to the side of the conical sleeve 304a. When the telescopic spring 303d-1f is in its original length state, the pressing member 304b presses the larger radius end of the conical sleeve 304a, so that the conical sleeve 304a drives the connecting sleeve 303d-1c. In the relative sliding process, the end face of the connecting sleeve 303d-1c that connects to the limiting groove 303d-1e is set as an inclined surface and tilted towards the limiting groove 303d-1e. As a result, when the connecting sleeve 303d-1c is pushed, it will rotate relative to the limiting post 303d-1d due to the squeezing of the inclined surface and the limiting post 303d-1d. This continues until the limiting post 303d-1d slides into the limiting groove 303d-1e. At this time, the rotation of the driving section 303d-1a will drive the connecting sleeve 303d-1c to rotate through the cooperation of the limiting post 303d-1d and the limiting groove 303d-1e.

[0058] In this embodiment, the extruder 304b abuts against the conical sleeve 304a via a rolling ball 304b-1 connected to its end, thereby reducing the frictional force on the extruder 304b when the conical sleeve 304a rotates. A return spring 304b-2 is connected to the extruder 304b in the moving direction. When the extruder 304b presses against the conical sleeve 304a, the return spring 304b-2 is compressed. One side of the extruder 304b is provided with an extrusion groove 304b-3 adapted to its moving direction. One side of the temporary sealing chamber 302b is slidably connected to an extrusion rod 304b-4 adapted to the extrusion groove 304b-3. One side of the enclosed partition 302c is provided with a protrusion 304b-5 adapted to the extrusion rod 304b-4. The contact surface between the protrusion 304b-5 and the extrusion rod 304b-4 is provided with a matching extrusion groove 304b-6. When the enclosed partition... When the partition 302c is closed, the protrusion 304b-5, located at the position of the protrusion, pushes the extrusion rod 304b-4 through the extrusion groove 304b-6, thereby driving the extrusion rod 304b-4 to push the extrusion piece 304b towards the conical sleeve 304a through the extrusion groove 304b-3, so that the drive rod 303d-3 rotates with the drive section 303d-1a. Conversely, when the partition 302c is opened, the protrusion 304b-5 leaves its position, the return spring 304b-2 loses its extrusion and returns to its deformation, no longer causing the extrusion piece 304b to press against the conical sleeve 304a. When the conical sleeve 304a loses its external force, it will shift and deflect during the process of the telescopic spring 303d-1f returning to its original length, thereby causing the limiting post 303d-1d on one side of the drive section 303d-1a to move out of the corresponding limiting groove 303d-1e, thus preventing the cover 302b-2 from being opened accidentally.

[0059] The rest of the structure is the same as in Example 1.

[0060] Opening and closing process of the hopper cover 302b-2: To open the hopper cover 302b-2, the drive shaft 303d-1 rotates, causing the drive rod 303d-3 to rotate as well. The rotation of the drive rod 303d-3 causes the connecting shaft 303d-5 at the end to move in a circular motion from bottom to top. This, in turn, causes the connecting rod 303d-4 to move upward through the connecting shaft 303d-5. The upward movement of the connecting rod 303d-4 pushes the drive shaft 303d-2 upward, causing the guide post 303c-1, which is coaxial with the drive shaft 303d-2, to slide vertically upward along the slot 303a. The movement of the guide post 303c-1 causes the connecting frame 303c, the guide post 303c-2, and the hopper cover 302b-2 to move upward together. During this process, the hopper cover 302b-2 and the hopper opening 3... The openings of 02b-1 maintain parallel relative sliding until the cover 302b-2 and the opening 302b-1 are separated from each other. When the guide post 1 303c-1 moves to the connection between the strip groove 303a and the arc groove 303b, the guide post 2 303c-2 moves to the end of the strip groove 303a. At this time, the drive shaft 303d-1 continues to rotate, which will cause the connecting rod 303d-4 to push the connecting shaft 303d-5 to generate a flipping tendency. The guide post 1 303c-1 then enters the arc groove 303b from the strip groove 303a and slides along the arc path. The connecting frame 303c and the cover 302b-2 flip around the guide post 2 303c-2, so that the opening of the opening 302b-1 gradually increases, which facilitates loading and unloading of materials.

[0061] When closing the compartment cover 302b-2, the drive shaft 303d-1 is reversed, and the compartment cover 302b-2 will rotate in the opposite direction, then slide parallel to the compartment opening 302b-1 until it is tightly closed. The gap between the compartment cover 302b-2 and the compartment opening 302b-1 can be minimized, and the connection between the two is a surface contact, resulting in a better sealing effect. A sealing gasket can be set between the compartment cover 302b-2 and the compartment opening 302b-1. When the compartment cover 302b-2 and the compartment opening 302b-1 are tightly closed, they will compress to enhance the sealing effect.

[0062] The principle for preventing accidental opening of the compartment cover 302b-2 is as follows: When the closed partition 302c is opened, the connecting sleeve 303d-1c is not subjected to external force, and the telescopic spring 303d-1f is in its original length. At this time, the limiting post 303d-1d on one side of the drive section 303d-1a moves out of the corresponding limiting groove 303d-1e. Therefore, when the drive section 303d-1a rotates, it will not drive the connecting sleeve 303d-1c to rotate, that is, it will not drive the connecting section 303d-1b to rotate. In other words, even if the motor is accidentally turned on at this time, causing the drive section 303d-1a to rotate, it will not drive the compartment cover 302b-2 to open, thus ensuring that this side... When the partition 302c is not open, the cover 302b-2 is always closed. When the partition 302c is closed, the trigger 304 will drive the connecting sleeve 303d-1c to compress the telescopic spring 303d-1f, so that the two sets of limit posts 303d-1d fall into the corresponding limit grooves 303d-1e respectively. Then, when the drive section 303d-1a rotates, the connecting sleeve 303d-1c will rotate through the cooperation of the limit posts 303d-1d and the limit grooves 303d-1e, thereby driving the connecting section 303d-1b to rotate, and thus driving the drive rod 303d-3. Example 3

[0063] Reference Figures 1-15 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides preferred implementation structures for the conveying connector 302a-1 in the feed box 201 and the unloading box 202, which can be adapted to the continuous addition of welding materials of various shapes and sizes.

[0064] Specifically, the conveying connector 302a-1 located in the feed box 201 is a conveying roller. The feed component 201a includes a connecting roller 201a-1 fixedly installed on one side of the feed inlet 101a and adapted to the conveying roller. One end of the connecting roller 201a-1 is connected to the working surface of the welding platform 102. The conveying roller and the connecting roller 201a-1 are arranged in a row at intervals and connected by a mounting frame. Each of them can rotate relative to the mounting frame via a central shaft. Two sets of mounting frames for the conveying roller are arranged side by side and can be aligned with the mounting frames of the connecting roller 201a-1 respectively. The two mounting frames of the conveying roller are fixedly connected at their ends and move synchronously when driven. Here, the sealing groove 302a-2 is located between the two mounting frames of the conveying roller. When the closing partition 302c is closed, it will match the sealing groove 302a-2, thereby closing the partition between the two conveying rollers. The gap between two adjacent sets of conveyor rollers in the same installation is adapted to the minimum size of the pre-added welding material. The welding material on the conveyor roller is pushed by the feeding component 201a. Whether the welding material is in block or rod shape, it can roll forward through the conveyor roller. The connecting roller 201a-1 is fixedly set at the feed port 101a. Its end facing the opening of the welding platform 102 is slightly inclined downward. After the welding material is pushed into the connecting roller 201a-1 on the conveyor roller, it can roll down onto the working surface of the welding platform 102 under its own gravity.

[0065] Furthermore, the feeding component 201a also includes a drive component 201a-2 disposed within the feeding box 201, used to push the material on the conveying roller and connecting roller 201a-1 to the working surface of the welding platform 102. In this embodiment, the drive component 201a-2 is driven by a motor and a screw, and can be positioned and pushed between each piece of welding material. The specific scheme can refer to the material pushing scheme of the positioning mechanism and pushing mechanism disclosed in the existing patent CN117628895A, which belongs to the prior art and can be implemented with reference to the positioning mechanism and pushing mechanism in that specification.

[0066] The conveying connector 302a-1 located inside the unloading box 202 is an installation connecting frame. The unloading component 202a includes a longitudinal moving mechanism located within the installation connecting frame, used to drive the support base 102a to move longitudinally. The longitudinal moving mechanism can be an electric telescopic rod, etc. In this embodiment, the common motor and screw drive method is still used to drive the support base 102a to move up and down, and the guide rod arranged parallel to the screw is used for limiting. The longitudinal moving mechanism is located in the integrated installation connecting frame. Two sets of motors are installed in the installation connecting frame to drive the two support bases 102a to move up and down respectively. The two support bases 102a are spaced apart in the horizontal direction. When one set of support bases 102a is located in the continuous sealing chamber 302a and at the bottom of the welding platform 102, the other set of support bases 102a is located in the temporary sealing chamber 302b near the opening 302b-1, which facilitates the removal of the internal material when the sealing partition 302c is closed. The support base 102a is threadedly connected to the screw, and the support base 102a is slidably connected to the guide rod. The screw connected to the motor output shaft is rotated by starting the motor, which in turn drives the support base 102a to move up and down.

[0067] Preferably, the drive component 302d is used to drive the mounting bracket to move between the bottom of the welding platform 102 and the hopper 302b-1. The entire mounting bracket can slide relative to the unloading box 202 by being driven by the drive component 302d, and the unloading box 202 maintains a seal with the outside during the sliding process.

[0068] The rest of the structure is the same as in Example 2.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A formic acid vacuum furnace conveying mechanism, characterized in that: include, A welding assembly (100) includes a welding chamber (101) and a welding platform (102) located inside the welding chamber (101) with its working surface facing upwards. The bottom of the welding platform (102) is sealed with a movable support base (102a). The support base (102a) adjusts the welding space inside the welding platform (102) by longitudinal movement. The top of the welding chamber (101) is provided with a formic acid furnace (103) that is connected to it. When the welding chamber (101) is kept in a vacuum-sealed state, the formic acid furnace (103) delivers formic acid vapor toward the welding platform (102) for welding. A material conveying assembly (200) is disposed on one side of the welding chamber (101) and includes a feed box (201) and a discharge box (202) respectively connected to the welding chamber (101). The welding chamber (101) has a feed inlet (101a) connected to the feed box (201) on the side near the opening of the welding platform (102). The feed box (201) contains a feeding component (201a) for conveying welding materials to the feed inlet (101a). The welding chamber (101) has a discharge port (101b) adapted to the discharge box (202) on the side near the bottom of the welding platform (102). The discharge box (202) contains a discharge component (202a) for removing the welded material from the discharge port (101b). The sealing assembly (300) includes a vacuum system (301) connected to the feed box (201), the discharge box (202) and the welding chamber (101) respectively. Both the feed box (201) and the discharge box (202) are provided with a sealing maintenance part (302) to maintain the vacuum sealing state in the welding chamber (101) during the process of material entering and leaving the feed box (201) and the discharge box (202).

2. The formic acid vacuum furnace conveying mechanism as described in claim 1, characterized in that: The sealing maintenance part (302) includes a continuously sealed chamber (302a) connected to the feed inlet (101a) or the discharge port (101b), and two temporary sealed chambers (302b) disposed on both sides of the continuously sealed chamber (302a). An openable and closable partition (302c) is provided between the temporary sealed chamber (302b) and the continuously sealed chamber (302a). The continuously sealed chamber (302a) and the temporary sealed chamber (302b) adjust their sealing state by communicating with the vacuum system (301). When materials enter or exit between the continuously sealed chamber (302a) and the temporary sealed chamber (302b), the temporary sealed chamber (302b) remains in a vacuum-sealed state. When materials enter or exit between the temporary sealed chamber (302b) and the outside world, the closed partition (302c) on one side of the temporary sealed chamber (302b) remains closed.

3. The formic acid vacuum furnace conveying mechanism as described in claim 2, characterized in that: The continuously sealed chamber (302a) and one of the temporary sealed chambers (302b) are each provided with a set of conveying connectors (302a-1) adapted to the welding platform (102). The welding platform (102) inputs or takes out materials through the conveying connectors (302a-1). The two sets of conveying connectors (302a-1) are fixedly connected, and the two sets of conveying connectors (302a-1) are slidably connected to the continuously sealed chamber (302a) and the temporary sealed chamber (302b) respectively. A sealing groove (302a-2) adapted to the closed partition (302c) is provided between the two sets of conveying connectors (302a-1). The sealing maintenance part (302) also includes a drive member (302d) for moving the conveying connector (302a-1). When one set of conveying connectors (302a-1) moves to communicate with the welding platform (102), the closed partition (302c) closes and remains sealed with the sealing groove (302a-2). The other set of conveying connectors (302a-1) can communicate with the outside to output or load materials.

4. The formic acid vacuum furnace conveying mechanism as described in claim 3, characterized in that: The temporary sealed chamber (302b) has a chamber opening (302b-1) for material entry and exit on one side, and a chamber cover (302b-2) that can be slidably connected to the chamber opening (302b-1). The chamber cover (302b-2) and the chamber opening (302b-1) remain sealed during sliding. The temporary sealed chamber (302b) has a control component (303) on one side for controlling the opening and closing of the chamber cover (302b-2).

5. The formic acid vacuum furnace conveying mechanism as described in claim 4, characterized in that: The control component (303) includes a strip groove (303a) and an arc groove (303b) disposed on the inner wall of the temporary sealing chamber (302b). The direction of the strip groove (303a) is consistent with the direction of the sliding of the chamber cover (302b-2) relative to the chamber opening (302b-1). The end of the arc groove (303b) is connected to the middle of the strip groove (303a), and the center of the arc groove (303b) coincides with one end of the strip groove (303a). A connecting frame (303c) is fixedly installed on one side of the compartment cover (302b-2). A guide post 1 (303c-1) and a guide post 2 (303c-2) adapted to the strip groove (303a) are spaced apart on one side of the connecting frame (303c). The guide post 2 (303c-2) is also adapted to the arc groove (303b). The distance between the guide post 1 (303c-1) and the guide post 2 (303c-2) is equal to the radius of the arc groove (303b). During the process of guide post one (303c-1) sliding from the middle of the strip groove (303a) to the end, the bin cover (302b-2) and the bin opening (302b-1) slide and separate. During the process of guide post two (303c-2) sliding in the arc groove (303b) through guide post one (303c-1) as the rotation axis, the opening between the bin cover (302b-2) and the bin opening (302b-1) increases as it flips.

6. The formic acid vacuum furnace conveying mechanism as described in claim 5, characterized in that: The temporary sealed chamber (302b) is also provided with a second driving component (303d) for moving the connecting frame (303c) on one side. The second driving component (303d) includes a driving shaft (303d-1) located on one side of the temporary sealed chamber (302b) and a push shaft (303d-2) located on one side of the connecting frame (303c) and coaxial with the guide post (303c-1). The end of the driving shaft (303d-1) is provided with a driving rod (303d-3). The end of the push shaft (303d-2) is rotatably connected to a connecting rod (303d-4). A through connecting shaft (303d-5) is rotatably connected between the driving rod (303d-3) and the connecting rod (303d-4).

7. The formic acid vacuum furnace conveying mechanism as described in claim 6, characterized in that: The drive shaft (303d-1) includes a drive section (303d-1a) and a connecting section (303d-1b) coaxially connected. The drive section (303d-1a) is connected to the output shaft of the motor, and the connecting section (303d-1b) is fixedly connected to the drive rod (303d-3). A connecting sleeve (303d-1c) that is rotatably connected to the inner wall of the temporary sealing chamber (302b) is slidably connected between the drive section (303d-1a) and the connecting section (303d-1b). The driving section (303d-1a) and the connecting section (303d-1b) are each provided with a set of limiting posts (303d-1d) on one side. The connecting sleeve (303d-1c) is provided with two sets of limiting grooves (303d-1e) that are adapted to the limiting posts (303d-1d) on one side. The limiting groove (303d-1e) on the side closer to the driving section (303d-1a) is connected to the end, and the limiting groove (303d-1e) on the side closer to the connecting section (303d-1b) is not connected to the end.

8. The formic acid vacuum furnace conveying mechanism as described in claim 7, characterized in that: A telescopic spring (303d-1f) is also connected between the connecting sleeve (303d-1c) and the connecting section (303d-1b). When the telescopic spring (303d-1f) is in a compressed state, the two sets of limiting posts (303d-1d) are respectively inserted into the corresponding limiting grooves (303d-1e). When the telescopic spring (303d-1f) returns to its original length, the limiting posts (303d-1d) in the limiting grooves (303d-1e) connected to the end are moved out. The inner wall of the temporary sealing chamber (302b) is provided with a trigger (304) that drives the connecting sleeve (303d-1c) to compress the telescopic spring (303d-1f). The trigger (304) is driven when the closed partition (302c) on one side of the temporary sealing chamber (302b) is closed.

9. The formic acid vacuum furnace conveying mechanism as described in any one of claims 5-8, characterized in that: The conveying connector (302a-1) located in the feed box (201) is a conveying roller. The feed component (201a) includes a connecting roller (201a-1) fixedly disposed on one side of the feed inlet (101a) and adapted to the conveying roller. One end of the connecting roller (201a-1) is connected to the opening of the welding platform (102). The feeding component (201a) also includes a drive component three (201a-2) disposed in the feeding box (201) for pushing the material on the conveying roller and the connecting roller (201a-1) to the opening of the welding platform (102).

10. The formic acid vacuum furnace conveying mechanism as described in any one of claims 5-8, characterized in that: The conveying connector (302a-1) located in the unloading box (202) is a mounting frame. The unloading component (202a) includes a longitudinal moving mechanism located in the mounting frame for driving the support base (102a) to move longitudinally. The driving component (302d) is used to drive the mounting frame to move between the bottom of the welding platform (102) and the hopper (302b-1).

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