Automatic crucible mixer

Abstract

The invention discloses an automatic crucible mixing machine which comprises a rack, a mixing mechanism is rotationally connected to the rack, the mixing mechanism is driven by a driving motor to mix uniformly, the mixing machine comprises a conveying device and a pressing and sealing mechanism, the conveying device is used for conveying a tray bearing a crucible into the mixing mechanism, and the pressing and sealing mechanism is used for pressing and sealing the tray. And the pressing and sealing mechanism is used for pressing and sealing the crucible. The device can directly receive conveyed trays containing crucibles, and after automatic film covering and pressing fixing, the uniform mixing mechanism is started to mix the crucibles uniformly; the device is high in automation degree and can be arranged in an existing automatic production line, and the production efficiency is effectively improved.

Description

Technical Field

[0001] This application belongs to the field of metallurgy, and particularly relates to an automated crucible mixer. Background Art

[0002] During the test for determining the content of precious metals such as gold and silver, the sample and reagents need to be placed in a crucible for mixing, and then enter an ash blowing furnace for ash blowing test.

[0003] Before the test, the substances in the crucible need to be mixed evenly. The traditional method is manual stirring and mixing, or semi-automatic equipment is used for mixing. That is, the crucible is manually placed on the mixer, and after the mixer vibrates or rotates to complete the mixing, the operator opens the cover plate to take out the crucible. This method requires a lot of manual operations, not only has low efficiency, increases the danger of operators, but also has a high labor cost and cannot be used in an automated production line.

[0004] Therefore, an automated crucible mixer is needed to solve the above problems. Summary of the Invention

[0005] In order to solve the deficiencies of the existing technology, this application provides an automated crucible mixer that does not require manual intervention, saves labor costs, and improves safety.

[0006] The technical effects to be achieved by this application are realized through the following solutions: According to the first aspect of this application, an automated crucible mixer is provided, which includes a frame. A mixing mechanism is rotatably connected to the frame, and the mixing mechanism is driven by a driving motor for mixing. The mixer includes a conveying device and a pressing and sealing mechanism. The conveying device is used to convey a tray carrying a crucible into the mixing mechanism, and the pressing and sealing mechanism is used to press and seal the crucible.

[0007] Preferably, both sides of the mixing mechanism are rotatably connected to the frame through rotating shafts, and the driving motor drives the mixing mechanism to rotate through the rotating shafts.

[0008] Preferably, the conveying device is fixed to the frame body of the mixing mechanism, and the conveying device is a roller conveyor.

[0009] Preferably, a positioning mechanism is provided on the roller conveyor. The positioning mechanism includes a positioning cylinder, and the positioning cylinder is fixed to the frame body and can extend through the gap of the roller conveyor.

[0010] Preferably, the pressing and sealing mechanism includes a pressing cover and a film covering mechanism. The film covering mechanism is used to cover a film above the crucible, and the pressing cover presses the film onto the crucible under the action of a pressing cylinder.

[0011] Preferably, the film covering mechanism includes a driving roller and a driven roller. The driving roller and the driven roller are arranged on both sides of the conveying device. The driving roller is controlled to rotate by a servo motor. The film is installed on the driven roller and tightened by the driving roller.

[0012] Preferably, a brake is provided on the driven roller, and an encoder is installed at the rotating shaft of the driving roller. The encoder is used to detect the number of rotations of the driving roller.

[0013] Preferably, both ends of the driven roller and the driving roller are respectively connected to the frame body through quick-release bearings.

[0014] Preferably, the pressing cover includes a cover body and a pressing cylinder. The cover body is located above the conveying device and the film. The pressing cylinder drives the cover body to press the film onto the crucible.

[0015] Preferably, light rods are provided at the bottoms of the four corners of the cover body. The light rods are slidably connected to the frame body. The pressing cylinder is fixed to the bottom surface of the frame body. The pressing cylinder drives the four light rods to move up and down through a driving frame.

[0016] According to an embodiment of the present application, the beneficial effect of adopting this automatic crucible mixing machine is that it can directly receive the tray containing the crucible transported. After automatic film covering and pressing and fixing, the mixing mechanism is started to mix it; this device has a high degree of automation and can be arranged in the existing automatic production line, effectively improving the production efficiency. Description of the Drawings

[0017] In order to more clearly illustrate the embodiments of the present application or the existing technical solutions, the following will briefly introduce the drawings required for use in the description of the embodiments or the existing technical solutions. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of an automatic crucible mixing machine in an embodiment of the present application; Figure 2 For Figure 1 the schematic structural diagram of the mixing mechanism in Figure 3 For Figure 2 the front view structural diagram of the mixing mechanism in Figure 4 For Figure 3 the schematic structural diagram of the end part of the driven roller or the driving roller in Figure 5 For Figure 2 the schematic structural diagram of the bottom of the mixing mechanism in Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Apparently, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0020] As Figures 1 to 5 shown, an automatic crucible mixing machine in an embodiment of the present application includes a frame 100, a mixing mechanism 200 is rotatably connected to the frame 100, the mixing mechanism 200 is driven to mix by a driving motor 110, the mixing mechanism 200 includes a conveying device 210 and a pressing and sealing mechanism, the conveying device 210 is used to convey a tray 320 carrying a crucible 310 into the mixing mechanism 200, and the pressing and sealing mechanism is used to press and seal the crucible 310.

[0021] Through the solution of this embodiment, the conveying device 210 can be connected to an existing production line, directly convey the tray 320 into the mixing mechanism 200, and the pressing and sealing mechanism performs pressing and sealing to prevent the content from spilling during the mixing process; the driving motor 110 drives the entire mixing mechanism 200 to act together to complete the mixing operation.

[0022] In an embodiment of the present application, both sides of the mixing mechanism 200 are rotatably connected to the frame 100 through a rotating shaft 202, and the driving motor 110 drives the mixing mechanism 200 to rotate through the rotating shaft 202. The driving motor 110 drives the entire mixing mechanism 200 to rotate, without the need for the tray 320 to be transferred again, making the structure of the entire mixing mechanism 200 simpler and more convenient to operate; it avoids problems such as spilling of the crucible 310 caused by excessive actions or frequent transfers.

[0023] In an embodiment of the present application, the conveying device 210 is fixed to the frame body 201 of the mixing mechanism, and the conveying device 210 is a roller conveyor. The roller conveyor can provide good support for the tray 320, facilitating the pressing and sealing mechanism to fix the crucible 310 and the tray 320 together on the conveying device 210 to prevent them from being thrown out during the rotational mixing process; moreover, the roller conveyor conveys smoothly and is suitable for operations with high precision.

[0024] In an embodiment of the present application, a positioning mechanism 211 is provided on the roller conveyor. The positioning mechanism 211 includes a positioning cylinder, which is fixed to the frame 201 and can extend through the gap of the roller conveyor. When the tray 320 runs into the mixing mechanism 200, the front positioning cylinder extends to block its continuous conveyance. A positioning cylinder can also be provided at the rear of the tray 320, and they extend together to fix the tray 320 to prevent it from being thrown out during the rotation process. Moreover, this method can fix the tray 320 to the middle part of the mixing mechanism 200, avoid vibration caused by the deviation of the center of gravity during the rotation process, and improve the running stability of the device.

[0025] In an embodiment of the present application, the pressing and sealing mechanism includes a pressing cover 220 and a film covering mechanism 230. The film covering mechanism 230 is used to cover the film 234 above the crucible 310. Under the action of the pressing cylinder 222, the pressing cover 220 presses the film 234 onto the crucible 310 to achieve the sealing of the opening of the crucible 310. The bottom surface of the pressing cover 220 is flat, and the film 234 is a sealing film in traditional mixing operations and can fit the opening of the crucible 310 for sealing.

[0026] In an embodiment of the present application, the film covering mechanism 230 includes a driving roller 231 and a driven roller 232. The driving roller 231 and the driven roller 232 are arranged on both sides of the conveying device 210. The driving roller 231 is controlled to rotate by a servo motor 233. The film 234 is installed on the driven roller and is tightened by the driving roller 231. A roll of the film 234 is installed on the driven roller 232, and one end of the film 234 is wound around the driving roller 231. The rotation of the driving roller 231 can pull out the film 234, ensuring that the film 234 used to seal the crucible 310 each time is clean and free of foreign objects, thereby improving the test accuracy.

[0027] The driving roller 231 can also assist in tightening the film 234 to prevent it from curling and folding to form gaps, ensuring the reliability of the seal and preventing the contents from falling out through the gaps during the rotation and shaking process.

[0028] The servo motor 233 can control the number of rotation cycles of the driving roller 231, thereby ensuring that the film 234 can move a sufficient distance to cover the surface of the crucible 310 with a new film 234.

[0029] In an embodiment of the present application, a brake is provided on the driven roller 232, and an encoder is installed at the rotating shaft 202 of the driving roller 231. The encoder is used to detect the number of rotation cycles of the driving roller 231. This brake is, for example, a magnetic powder brake, an electromagnetic brake, etc., which can control the driven roller 232 to stop rotating, thereby providing a certain amount of tension to ensure that the film 234 is laid flat on the surface of the crucible 310 and is sealed and pressed by the pressing cover 220.

[0030] The encoder is connected to the rotating shaft of the driven roller. During rotation, the encoder collects pulses and determines the number of current rotation cycles based on the number of pulses.

[0031] In an embodiment of the present application, both ends of the driven roller 232 and the driving roller 231 are respectively connected to the frame body 201 through quick-release bearings. The quick-release bearing is, for example, provided with quick-release seats at the upper and lower ends of the bearing. The base 2341 and the fixing seat 2342 at the top are connected by a quick-release bolt 2343, and the bearing is pressed into the cavity surrounded by the base 2341 and the fixing seat 2342, facilitating the replacement of the film roll.

[0032] In an embodiment of the present application, the pressing cover 220 includes a cover body 221 and a pressing cylinder 222. The cover body 221 is located above the conveying device 210 and the film 234. The pressing cylinder 222 drives the cover body 221 to press the film 234 onto the crucible 310. The pressing cylinder 222 is a cylinder or a servo electric cylinder, which can drive the pressing cover 220 to move towards or away from the tray 320 to achieve pressing or releasing. When the pressing cover 220 is lifted, the crucible 310 and the tray 320 can freely enter and exit, and the film 234 is located above the crucible 310, and free conveyance can also be achieved. When the tray 320 reaches the designated position, the film 234 is also rotated to replace with a brand-new film 234, and the pressing cover 220 is pressed down to press the film 234 onto the crucible 310.

[0033] In an embodiment of the present application, optical rods 223 are provided at the bottom corners of the cover body 221. The optical rods 223 are slidably connected to the frame body 201. The pressing cylinder 222 is fixed to the bottom surface of the frame body 201. The pressing cylinder 222 is fixedly connected to the four optical rods 223 through a driving frame 224. The four corners of the driving frame 224 are fixed to the optical rods 223, the middle position of the driving frame 224 is fixed to the cylinder body of the pressing cylinder 222, and the piston rod of the pressing cylinder 222 is connected to the bottom surface of the frame body 201. When the pressing cylinder 222 acts, the piston rod pulls the cylinder body to move up and down, thereby driving the driving frame 224 and the optical rods 223 to move up and down to achieve the pressing and upward movement of the cover body 221.

[0034] The position of the pressing cylinder 222 can lower the center of gravity of the entire mixing mechanism 200, making it more stable during rotation and reducing the damage to the whole caused by vibration.

[0035] Moreover, the pressing cylinder 222 at the bottom can reduce the protruding space at the top, avoid mutual interference and collision with the frame 100 during rotation, and also avoid excessive centrifugal force caused by being too far away from the rotating shaft 202, affecting the normal operation and service life of the pressing cylinder 222.

[0036] According to an embodiment of the present application, the beneficial effects of using this automatic crucible mixing machine are that it can directly receive the tray containing the crucible conveyed, and after automatic film covering and pressing fixation, the mixing mechanism is activated to mix it; this device has a high degree of automation and can be arranged in the existing automatic production line, effectively improving the production efficiency.

[0037] It should be noted that the above detailed description is exemplary and is intended to provide further illustration of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0040] In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or devices.

[0041] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be oriented "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device may also be otherwise oriented, such as rotated 90 degrees or at other orientations, and the corresponding explanations of the spatial relative descriptions used herein will be made.

[0042] In the foregoing detailed description, reference has been made to the accompanying drawings, which form a part hereof. In the drawings, like symbols typically identify like components, unless the context indicates otherwise. The illustrated embodiments described in the detailed description, the drawings, and the claims are not meant to be limiting. Other embodiments may be used and other changes may be made without departing from the spirit or scope of the subject matter presented herein.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automated crucible mixer, comprising a frame, characterized in that: The frame is rotatably connected with a mixing mechanism, which is driven by a driving motor for mixing. The mixing mechanism includes a conveying device and a pressing and sealing mechanism. The conveying device is used to convey the tray carrying the crucible to the mixing mechanism, and the pressing and sealing mechanism is used to press and seal the crucible.

2. The automated crucible mixer according to claim 1, characterized in that: The two sides of the mixing mechanism are rotatably connected to the frame via a rotating shaft, and the driving motor drives the mixing mechanism to rotate via the rotating shaft.

3. The automated crucible mixer according to claim 2, characterized in that: The conveying device is fixed to the frame of the mixing mechanism, and the conveying device is a roller conveyor.

4. The automated crucible mixer according to claim 3, characterized in that: The roller conveyor is provided with a positioning mechanism, which includes a positioning cylinder, which is fixed to the frame and can extend through the gap of the roller conveyor.

5. The automated crucible mixer according to claim 3, characterized in that: The pressing and sealing mechanism comprises a pressing cover and a film covering mechanism, wherein the film covering mechanism is used to cover a film above the crucible, and the pressing cover presses the film onto the crucible under the action of a pressing cylinder.

6. The automated crucible mixer according to claim 5, characterized in that: The laminating mechanism comprises a driving roller and a driven roller, wherein the driving roller and the driven roller are arranged on both sides of the conveying device, and the driving roller is controlled to rotate by a servo motor, and the film is mounted on the driven wheel and tightened by the driving wheel.

7. The automated crucible mixer according to claim 6, characterized in that: The driven roller is provided with a brake, and the rotating shaft of the driving roller is provided with an encoder, and the encoder is used to detect the number of rotations of the driving roller.

8. The automated crucible mixer according to claim 6, characterized in that: Both ends of the driven roller and the driving roller are connected to the frame body through quick-release bearings respectively.

9. The automated crucible mixer according to claim 5, characterized in that: The pressing cover comprises a cover body and a pressing cylinder. The cover body is located above the conveying device and the film. The pressing cylinder drives the cover body to press the film onto the crucible.

10. The automated crucible mixer according to claim 8, characterized in that: Polished rods are arranged at the bottom of the four corners of the cover body, and the polished rods are slidably connected to the frame body. The clamping cylinder is fixed to the bottom surface of the frame body, and the clamping cylinder drives the four polished rods to move up and down through the driving frame.

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