Automatic movable powder discharging device for powder barrel

Abstract

The invention relates to the field of powder discharging equipment, in particular to an automatic movable powder discharging device for a powder barrel, which comprises the powder barrel, and a pulley assembly is mounted at the bottom of the powder barrel; a self-locking mechanism is arranged between the lifting frame and the powder barrel, and the self-locking mechanism and the powder barrel are controlled to be disassembled and assembled through a controller; the elevated platform is connected with the higher end of the lifting frame, and a discharging opening is formed in the elevated platform; the push-pull mechanism is movably mounted on the elevated platform and used for driving the powder barrel to move between the lifting frame and the elevated platform; and the automatic discharging mechanism is arranged between the powder charging basket and the elevated platform and is used for realizing automatic powder discharging of the powder. Automatic powder discharging of the powder barrel is achieved, the powder feeding efficiency is improved, the labor intensity is reduced to a great extent, workers are prevented from making contact with the feeding chamber, and the health of the workers is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of powder feeding equipment, and in particular to an automatic mobile powder discharge device for a powder barrel. Background Art

[0002] Powder is a raw material widely used in life and production. Whether it is metal powder, plastic powder, food powder, mineral powder or other fine particle materials are collectively referred to as powder materials.

[0003] Since powder materials generally need to be post-processed before they can be used as finished products, the first step of post-processing is basically to mix a variety of different powders, commonly known as mixing. Currently, the mixing process is generally carried out by a mixer.

[0004] When mixing materials, the existing material loading method is generally that workers take the elevator to the upper floor with a fully loaded cart and load the materials manually. This is not only inefficient, but also has high work intensity and high dust content in the loading room, which affects the health of the workers. Summary of the invention

[0005] The object of the present invention is to provide a device which can automatically move powder materials to an upper floor for loading.

[0006] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0007] An automatic mobile powder discharge device for a powder barrel, comprising: A powder barrel, the bottom of which is provided with a pulley assembly; A lifting frame is provided with a self-locking mechanism between the lifting frame and the powder barrel, and the self-locking mechanism is controlled by a controller to be assembled and disassembled from the powder barrel; The elevated platform is connected to the higher end of the lifting frame and is provided with a discharge port; The push-pull mechanism is movably mounted on the elevated platform and is used to drive the powder barrel to move between the lifting frame and the elevated platform; The automatic unloading mechanism is installed between the powder barrel and the elevated platform to realize the automatic discharge of powder.

[0008] The advantages of this solution are at least that the staff only needs to push the fully loaded powder barrel to the bottom of the lifting frame, and then the self-locking mechanism in the lifting frame will lock the powder barrel and automatically transport it upwards. After the powder barrel is transported to a high place, the push-pull mechanism will pull the powder barrel horizontally to the elevated platform, and align the discharge port of the powder barrel with the discharge port of the elevated platform. Since the mixer in the prior art is installed below the discharge port of the elevated platform, the powder in the powder barrel can be automatically discharged into the mixer below through the automatic discharge mechanism to achieve mixing. Then, the above steps can be reversed to send the empty powder barrel down through the lifting frame, so as to realize the automatic discharge of the powder barrel, improve the feeding efficiency of the powder, greatly reduce the labor intensity, and avoid contact between the workers and the feeding room, ensuring the health of the workers.

[0009] The present invention is further configured as follows: the self-locking mechanism is provided with two groups and is respectively installed on the lifting frame at the stop positions corresponding to the powder barrel, and the self-locking mechanism comprises: A fixed frame, on which a telescopic mechanism and a push-pull block driven by the telescopic mechanism are installed, and the push-pull block is vertically penetrated by a T-shaped hole; A movable frame having a stepped shaft passing through it, and when the lifting frame moves to the powder barrel stop position, the larger end of the stepped shaft is located in the T-shaped hole; The alignment hole is opened on the pulley assembly of the powder barrel and is used for the smaller end of the stepped shaft to pass through.

[0010] The advantages of this solution are at least that: there are two stopping positions for the powder barrel in the lifting frame, one is the bottom of the lifting frame, where the staff needs to push the fully loaded lifting barrel to the bottom of the lifting frame; the other is the position of the lifting frame close to the elevated platform, at which time the lifting barrel needs to be pulled out from the higher position of the lifting frame to the elevated platform.

[0011] After the powder barrel is sent into the lifting frame, the telescopic mechanism will push the push-pull block, and then drive the smaller end of the stepped shaft to penetrate into the alignment hole to fix the powder barrel. When the lifting frame drives the powder barrel to rise, the larger end of the stepped shaft in the T-shaped hole will come out of the T-shaped hole (i.e. the push-pull block). At this time, the stepped shaft only connects the movable frame and the powder barrel. Therefore, the setting of the T-shaped hole can realize the positioning of the powder barrel in the lifting frame without interfering with the lifting of the powder barrel.

[0012] When the powder barrel is lifted to a higher position in the lifting frame, the larger end of the stepped shaft will enter the push-pull block of the higher self-locking mechanism to achieve secondary positioning, ensuring that the powder barrel can be accurately moved from the lifting frame to the elevated platform.

[0013] The present invention is further configured as follows: the pulley assembly comprises a stand fixed to the outer peripheral side of the powder barrel, a first group of pulleys fixed to the bottom of the stand, and the alignment hole is opened on the stand.

[0014] The present invention is further configured as follows: the pulley assembly also includes a second group of pulleys fixed below the top of the stand, and a supporting slide rail for the second group of pulleys to enter is provided in the movable frame.

[0015] The present invention is further configured as follows: a third group of pulleys are provided outwardly on both sides of the vertical frame, and the movable frame and the elevated platform are both provided with guide retaining edges matched with the third group of pulleys.

[0016] The advantages of this solution are at least: the first set of pulleys can facilitate workers to transfer powder barrels on the first floor; the setting of the second set of pulleys can enable the powder barrels to be placed on the supporting slide rails, without the need to open positioning grooves on the bottom surface of the lifting frame for the powder barrels to be aligned; the third set of pulleys can limit the left and right positions of the powder barrels to ensure the alignment effect of the powder barrels that automatically move on the lifting frame and the elevated platform.

[0017] The present invention is further configured as follows: the bottom of the powder barrel is in an inverted cone shape and has a discharge port;

[0018] The automatic unloading mechanism comprises: A pneumatic hammer, fixed to the elevated platform and having an output shaft movable into the discharge port of the powder barrel; The cone is movably mounted in the inverted cone structure at the bottom of the powder barrel and is used to close the discharge port of the powder barrel; A guide post, one end of which is inserted into the cone and movably connected to the cone, and the other end of which is extended outside the cone and fixed; The movable column has one end fixed to the cone and the other end extending outside the cone and corresponding to the output shaft of the pneumatic hammer.

[0019] The advantages of this scheme are at least that: when the powder barrel is sent to the top of the discharge port of the elevated platform through the lifting frame and the push-pull mechanism, the pneumatic hammer will start and continuously hit the movable column, so that the cone will be lifted and lowered vertically along the direction of the guide column. When the cone rises, the edge of the cone will separate from the inverted conical inner wall of the powder barrel, so that the powder is discharged from the powder barrel and falls into the mixer downstairs through the discharge port below. The pneumatic hammer can not only prevent the powder from being blocked at the bottom discharge port of the powder barrel, but also accelerate the powder unloading rate, and has a high degree of automation.

[0020] The present invention is further configured as follows: the guide column and the movable column are coaxially sleeved, the bottom of the inverted cone is provided with a clearance groove for the guide column to penetrate, the movable column penetrates the guide column and is fixed at the penetration end and the bottom of the clearance groove, and a tension spring is connected between the penetration end of the movable column and the guide column.

[0021] The advantage of this solution is at least that the tension spring can accelerate and ensure the resetting of the cone, thereby ensuring that the powder will not be blocked at the discharge port of the powder barrel.

[0022] The present invention is further configured as follows: a plurality of guide rods are arranged at the penetration end of the movable column toward the guide column, and the guide rods penetrate the guide column and are slidably connected with the guide column.

[0023] The advantage of this solution is at least that the guide rod plays a guiding role, which can effectively ensure the stability of the reciprocating path of the cone and avoid the tilting movement of the cone.

[0024] The present invention is further configured such that a flexible sealing ring is provided at the bottom edge of the cone.

[0025] The advantages of this solution are at least that the flexible sealing ring is flexible, which can avoid the problem of gaps caused by the rigid collision between the edge of the cone and the powder or the inner wall of the powder barrel, and can also prevent powder leakage with the tension spring.

[0026] The present invention is further configured as follows: stairs are provided around the elevated platform.

[0027] The advantage of this solution is at least that the stairs can be climbed by workers and maintenance personnel to improve the emergency response effect.

[0028] In summary, the present invention has at least the following beneficial technical effects: 1. By setting up a powder barrel, lifting frame, elevated platform, push-pull mechanism and automatic unloading mechanism with a specific structure, the staff only needs to push the fully loaded powder barrel to the bottom of the lifting frame, and then the self-locking mechanism in the lifting frame will lock the powder barrel and automatically transport it upwards. The push-pull mechanism will pull the powder barrel in the lifting frame horizontally to the elevated platform, and the automatic unloading mechanism will automatically discharge the powder in the powder barrel into the mixer below to realize the loading of the mixer. The whole process can realize automatic loading without manual intervention, and the degree of automation is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the cooperation between the powder barrel and the fixing frame in some embodiments; Figure 2 is a schematic diagram of the matching structure when the powder barrel is located at the bottom of the lifting frame in some embodiments; Figure 3 is a schematic diagram of the matching structure when the powder barrel is located on an elevated platform in some embodiments; Figure 4 yes Figure 3 A magnified schematic diagram of part B; Figure 5is a schematic diagram showing the cooperation structure between the powder barrel and the self-locking mechanism in some embodiments; Figure 6 yes Figure 1 A schematic diagram of the enlarged portion A in the middle; Figure 7 is a schematic diagram showing the coordination between the powder barrel and the elevated platform in some embodiments; Figure 8 is an exploded schematic diagram of one embodiment of the automatic unloading mechanism; Fig. 9 is a cross-sectional view of one embodiment of the automatic unloading mechanism; Fig.10 yes Fig. 9 Enlarged schematic diagram of part C.

[0030] In the figure, 1, powder barrel; 11, pulley assembly; 111, stand; 112, first set of pulleys; 113, second set of pulleys; 114, third set of pulleys; 12, discharge port; 2, lifting frame; 21, self-locking mechanism; 211, fixed frame; 2111, telescopic mechanism; 2112, push-pull block; 2113, T-shaped hole; 212, movable frame; 213, stepped shaft; 214, alignment hole ; 22. Exit; 3. Elevated platform; 31. Discharge port; 4. Push-pull mechanism; 41. Hook; 5. Automatic unloading mechanism; 51. Pneumatic hammer; 52. Cone; 521. Give way groove; 53. Guide column; 54. Movable column; 55. Tension spring; 56. Guide rod; 57. Flexible sealing ring; 58. Separation point; 59. Gap; 6. Support slide rail; 7. Guide stop edge; 8. Stairs; 9. Mixer. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0032] An automatic mobile powder discharge device for powder barrels, referring to Figure 1 ,include: The powder barrel 1 has a pulley assembly 11 installed at the bottom thereof, and the pulley assembly 11 is used to facilitate the movement of the powder barrel 1 .

[0033] Lifting frame 2, such as Figure 2 and Figure 3 As shown, a self-locking mechanism 21 is provided between it and the powder barrel 1, and the self-locking mechanism 21 is controlled by a controller to be assembled and disassembled from the powder barrel 1. The powder barrel 1 can be fixed at a designated position in the lifting frame 2 by the self-locking mechanism 21 to prevent the powder barrel 1 from being misplaced. In addition, the lifting frame 2 is a structure with a lifting function in the prior art, and its lifting principle can refer to an elevator or a freight elevator, which will not be described in detail here.

[0034] Elevated platform 3, such as Figure 1 and Figure 2As shown, it is connected to the higher end of the lifting frame 2, and a discharge port 31 is provided on it (refer to Figure 7 ). The height of the elevated platform 3 can be set according to actual conditions, such as being set on the second floor or the third floor or higher. In this case, the mixer 9 in the prior art needs to be installed at the lower level of the elevated platform 3, and the inlet of the mixer 9 should correspond to the position of the discharge port 31. In addition, the lifting frame 2 needs to be provided with an outlet 22 corresponding to the height position of the elevated platform 3, and the outlet 22 is used for the powder barrel 1 to be moved out of the elevated platform 3. When the powder barrel 1 is transferred to the elevated platform 3, the upper part of the discharge port 31 on the elevated platform 3 corresponds to the discharge port 12 of the powder barrel 1, and the lower part of the discharge port 31 corresponds to the inlet of the mixer 9 in the prior art. In some preferred embodiments, the discharge port 31 can be tubularly connected to the upper and lower parts for conveying powder.

[0035] Push-pull mechanism 4, such as Figure 3 and Figure 4 As shown, the push-pull mechanism 4 is movably mounted on the elevated platform 3 and is used to drive the powder barrel 1 to move between the lifting frame 2 and the elevated platform 3. In some embodiments, the push-pull mechanism 4 can be a hook car that is controlled to move by a controller, and the hook 41 of the hook car can be hooked on the powder barrel 1 or the pulley assembly 11 and pulled by a power source, so as to take the powder barrel 1 out of the lifting frame 2 and move it to a designated position on the elevated platform 3. Of course, in other embodiments, it can also be connected to the powder barrel 1 through a suction cup, a magnet or other structure to drive the powder barrel 1 to move.

[0036] Automatic unloading mechanism 5, refer to Figure 2 , installed between the powder barrel 1 and the elevated platform 3, for realizing automatic powder discharge.

[0037] like Figure 2 As shown, in some embodiments, stairs 8 may be provided around the elevated platform 3 to facilitate manual maintenance of the device.

[0038] In some preferred embodiments, reference Figure 1 and Figure 5 The pulley assembly 11 at the bottom of the powder barrel 1 may include a stand 111 fixed to the outer peripheral side of the powder barrel 1, a first group of pulleys 112 fixed to the bottom of the stand 111, a second group of pulleys 113 fixed to the bottom of the top of the stand 111, and a third group of pulleys 114 fixed to both sides of the stand 111 and arranged outward. Preferably, the first group of pulleys 112 are universal wheels, and the second group of pulleys 113 and the third group of pulleys 114 are bearing structures.

[0039] In order to ensure the use of the second group of pulleys 113, a supporting slide rail 6 for the second group of pulleys 113 to enter is set in the movable frame 212 and / or on the elevated platform 3. When the second group of pulleys 113 enters the lifting frame 2 or the elevated platform 3, the second group of pulleys 113 can move on the supporting slide rail 6.

[0040] Similarly, in order to ensure the use of the third set of pulleys 114, a guide stop 7 cooperating with the third set of pulleys 114 is provided on the movable frame 212 and / or the elevated platform 3. The guide stop 7 can play a role of left and right limit to ensure the linear movement of the powder barrel 1.

[0041] It is worth mentioning that the above three groups of pulleys can be used individually or in any combination, and can all realize the movement of the pulleys in the device.

[0042] In some embodiments, two sets of self-locking mechanisms 21 are provided and are respectively installed on the lifting frame 2 at the upper and lower stop positions corresponding to the powder barrel 1. The self-locking mechanism 21 includes: Fixed frame 211, such as Figure 5 , Figure 6 As shown, it is fixed on the lifting frame 2 (the lifting frame 2 sees Figure 2 ) on which a telescopic mechanism 2111 and a push-pull block 2112 driven by the telescopic mechanism 2111 are installed, and a T-shaped hole 2113 vertically penetrates the push-pull block 2112.

[0043] The movable frame 212, such as Figure 5 , Figure 6 As shown, the lifting device is installed on the lifting frame 2 (the lifting frame 2 is shown in FIG. Figure 2 ), and its lifting principle is the same as the lifting principle of the elevator car in the prior art, which will not be repeated here. The difference is that a stepped shaft 213 is movably provided on the movable frame 212, and when the lifting frame 2 moves to the stop position of the powder barrel 1, the larger end of the stepped shaft 213 is located in the T-shaped hole 2113; when the lifting frame 2 drives the powder barrel 1 to rise, since the fixed frame 211 does not rise and fall with the powder barrel 1, the larger end of the stepped shaft 213 in the T-shaped hole 2113 will fall out of the T-shaped hole 2113 (i.e., the push-pull block 2112).

[0044] Alignment hole 214, such as Figure 5 , Figure 6 As shown, the pulley assembly 11 of the powder barrel 1, such as the alignment hole 214, can be opened on the stand 111 for the smaller end of the stepped shaft 213 to penetrate. When the lifting frame 2 moves to the stop position of the powder barrel 1, the telescopic mechanism 2111 can drive the push-pull block 2112 to move, thereby pushing the smaller end of the stepped shaft 213 into the alignment hole 214, so as to realize the positioning of the powder barrel 1 in the lifting frame 2. In order to ensure that the stepped shaft 213 can be smoothly inserted into the alignment hole 214, in some preferred embodiments, the opening of the alignment hole 214 can be chamfered, or the shape of the alignment hole 214 can be set to be waist-shaped.

[0045] When the lifting frame 2 drives the powder barrel 1 to rise, the smaller end of the stepped shaft 213 is always inserted in the alignment hole 214 and the movable frame 212 to position the powder barrel 1 in the lifting frame 2. At the same time, the larger end of the stepped shaft 213 will come out of the T-shaped hole 2113 (i.e., the push-pull block 2112) below the lifting frame 2 and enter the T-shaped hole 2113 (i.e., the push-pull block 2112) above the lifting frame 2, so that the powder barrel 1 can be positioned in the lifting frame 2 without interfering with the lifting of the powder barrel 1.

[0046] It is worth mentioning that a plurality of sensors may be installed in the lifting frame 2 . When the powder barrel 1 reaches a designated position in the lifting frame 2 , the controller receives a signal from the sensor and automatically opens and closes the self-locking mechanism 21 .

[0047] In some preferred embodiments, Figure 7 As shown, the bottom of the powder barrel 1 is in an inverted cone shape and has a discharge port 12. At this time, the automatic unloading mechanism 5 includes: Pneumatic hammer 51, such as Figure 8 and Fig. 9 As shown, it is fixed to the elevated platform 3 and its output shaft can be moved into the discharge port 12 of the powder barrel 1.

[0048] Cone 52, such as Figure 8 and Fig. 9 As shown, the cone 52 is movably installed in the inverted cone structure at the bottom of the powder barrel 1, and is used to close the discharge port 12 of the powder barrel 1. It is worth noting that the cone 52 can be completely conical or generally conical, such as a structure formed by adding a columnar entity at the bottom of the conical structure is also called a cone 52, or a hollow cone. When the cone 52 moves upward, the cone 52 will separate from the inner wall of the inverted cone structure at the bottom of the powder barrel 1, so that the powder falls from the separation point 58; and when the cone 52 moves downward, the cone 52 will form a sealing structure with the inner wall of the inverted cone structure at the bottom of the powder barrel 1 to avoid the problem of powder leakage. In order to avoid the problem of powder leakage from the powder barrel 1 during transportation, in some embodiments, a flexible sealing ring 57 can be added to the bottom edge of the cone 52, and the flexible sealing ring 57 is tightly abutted against the inner wall of the powder barrel 1 to achieve sealing.

[0049] Guide column 53, such as Fig. 9 As shown, one end thereof is vertically inserted into the cone 52 and movably connected to the cone 52, and the other end thereof extends outside the cone 52 and is fixed (see Figure 8 It is worth noting that there is a gap 59 between the guide column 53 and the inner wall of the discharge port 12 of the powder barrel 1 and the inner wall of the discharge port 31 of the elevated platform 3, and the gap 59 is for powder to pass through.

[0050] The movable column 54, such as Fig. 9 and Fig.10As shown, one end thereof is fixed to the cone 52 , and the other end thereof extends outside the cone 52 and corresponds to the output shaft of the pneumatic hammer 51 .

[0051] See also Figures 8 to 10 After the pneumatic hammer 51 is started, its output shaft can reciprocate quickly and continuously hit the movable column 54, so that the cone 52 can be vertically reciprocated and lifted along the direction of the guide column 53. When the cone 52 rises, the edge of the cone 52 will separate from the inverted conical inner wall of the powder barrel 1 (such as Fig. 9 The powder is discharged from the powder barrel 1 and falls into the mixer 9 downstairs through the discharge port 31 below (see Figure 7 )Inside.

[0052] In order to reduce the noise generated when the pneumatic hammer 51 strikes the movable column 54 , a flexible pad and / or a soundproof pad (not shown) may be provided near one end of the pneumatic hammer 51 and / or the movable column 54 to reduce the noise.

[0053] like Fig. 9 and Fig.10 As shown, in order to ensure that the cone 52 can be reset in time when struck by the pneumatic hammer 51, in some preferred embodiments, the bottom of the inverted cone 52 can be provided with a clearance groove 521 for the guide column 53 to penetrate (such as by means of depression, assembly fixation or slotting, etc.), at which time the guide column 53 and the movable column 54 are coaxially sleeved, the movable column 54 penetrates the guide column 53 and is fixed at the bottom of the clearance groove 521 at the penetration end, and the penetration end of the movable column 54 is connected to the guide column 53 by a tension spring 55. When the pneumatic hammer 51 strikes, the tension spring 55 can store force and accelerate the reset of the cone 52. Preferably, the end surface of the guide column 53 can be slotted for the tension spring 55 to penetrate, so as to achieve the limit of the tension spring 55.

[0054] At the same time, in order to improve the stability of the reciprocating path of the cone 52, in some embodiments, such as Fig. 9 and Fig.10 As shown, a plurality of guide rods 56 are provided at the insertion end of the movable column 54 toward the guide column 53 , and the guide rods 56 penetrate into the guide column 53 and are slidably connected with the guide column 53 .

[0055] The beneficial effect of this embodiment is that the worker only needs to push the fully loaded powder barrel 1 to the bottom of the lifting frame 2, and the fully loaded powder barrel 1 will automatically pass through the lifting frame 2 to reach the unloading position and automatically unload and reset. The entire unloading process does not require manual operation, has a high degree of automation, improves unloading efficiency, and avoids dust harming the health of workers.

[0056] The implementation principle of this embodiment is as follows: the worker pushes the fully loaded powder barrel 1 into the lifting frame 2, the sensor senses the powder barrel 1, the self-locking mechanism 21 is activated, and the stepped shaft 213 is pushed into the alignment hole 214. Then the controller automatically controls the lifting frame 2 to transport the powder barrel 1 to a higher place, and pulls the powder barrel 1 in the lifting frame 2 onto the elevated platform 3 through the push-pull mechanism 4.

[0057] Then the automatic unloading mechanism 5 is started, and the pneumatic hammer 51 continuously strikes the movable column 54, which drives the cone 52 to rise continuously and reset under the action of the tension spring 55, reciprocating multiple times, so that the powder can be quickly discharged from the separation point 58 between the cone 52 and the inner wall of the powder barrel 1.

[0058] After the powder is discharged from the discharge port 12 of the powder barrel 1, it will fall into the mixer 9 below through the discharge port 31 on the elevated platform 3, thereby realizing automatic discharge of the powder.

[0059] After unloading is completed (determined by weighing or setting the unloading time to determine whether unloading is completed), the above operation can be performed in reverse to send the empty powder barrel 1 to the bottom of the lifting frame 2. This cycle can improve the unloading efficiency of the powder, eliminate the need for workers to operate in the unloading room, and ensure the health of the workers.

[0060] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A powder barrel automatic mobile powder discharge device, characterized in that: include: A powder barrel (1) having a pulley assembly (11) mounted on the bottom thereof; A lifting frame (2) is provided with a self-locking mechanism (21) between the lifting frame (2) and the powder barrel (1), and the self-locking mechanism (21) is controlled by a controller to be assembled and disassembled from the powder barrel (1); An elevated platform (3) is connected to the higher end of the lifting frame (2) and is provided with a discharge port (31); A push-pull mechanism (4) is movably mounted on the elevated platform (3) and is used to drive the powder barrel (1) to move between the lifting frame (2) and the elevated platform (3); The automatic unloading mechanism (5) is installed between the powder barrel (1) and the elevated platform (3) and is used to realize the automatic discharge of powder.

2. The automatic mobile powder discharge device for powder barrels according to claim 1 is characterized in that: The self-locking mechanism (21) is provided with two groups and is respectively installed on the lifting frame (2) corresponding to the stop position of the powder barrel (1), and the self-locking mechanism (21) comprises: A fixed frame (211) is mounted with a telescopic mechanism (2111) and a push-pull block (2112) driven by the telescopic mechanism (2111), wherein a T-shaped hole (2113) vertically penetrates the push-pull block (2112); A movable frame (212) having a stepped shaft (213) passing through it, and when the lifting frame (2) moves to the stopping position of the powder barrel (1), the larger end of the stepped shaft (213) is located in the T-shaped hole (2113); The alignment hole (214) is formed on the pulley assembly (11) of the powder barrel (1) and is used for the smaller end of the stepped shaft (213) to pass through.

3. The automatic mobile powder discharge device for powder barrels according to claim 2 is characterized in that: The pulley assembly (11) comprises a stand (111) fixed to the outer peripheral side of the powder barrel (1), and a first group of pulleys (112) fixed to the bottom of the stand (111), and the alignment hole (214) is opened on the stand (111).

4. The automatic mobile powder discharge device for powder barrels according to claim 3 is characterized in that: The pulley assembly (11) further comprises a second group of pulleys (113) fixed below the top of the stand (111), and a supporting slide rail (6) for the second group of pulleys (113) to enter is provided in the movable frame (212) and / or on the elevated platform (3).

5. The automatic mobile powder discharge device for powder barrels according to claim 3, characterized in that: A third group of pulleys (114) are provided outwardly on both sides of the vertical frame (111), and a guide stop edge (7) cooperating with the third group of pulleys (114) is provided on the movable frame (212) and / or the elevated platform (3).

6. The automatic mobile powder discharge device for powder barrels according to claim 1, characterized in that: The bottom of the powder barrel (1) is in an inverted cone shape and has a discharge port (12); The automatic unloading mechanism (5) comprises: A pneumatic hammer (51) is fixed to the elevated platform (3) and its output shaft can be moved into the discharge port (12) of the powder barrel (1); A cone (52) is movably mounted in the inverted cone structure at the bottom of the powder barrel (1) and is used to close the discharge port (12) of the powder barrel (1); A guide post (53), one end of which is inserted into the cone (52) and movably connected to the cone (52), and the other end of which is extended outside the cone (52) and fixed; The movable column (54) has one end fixed to the cone (52) and the other end extending outside the cone (52) and corresponding to the output shaft of the pneumatic hammer (51).

7. The automatic mobile powder discharge device for powder barrels according to claim 6, characterized in that: The guide column (53) and the movable column (54) are coaxially sleeved, and a clearance groove (521) for the guide column (53) to penetrate is provided at the bottom of the inverted cone (52), and the movable column (54) penetrates the guide column (53) and is fixed at the penetration end and the groove bottom of the clearance groove (521), and a tension spring (55) is connected between the penetration end of the movable column (54) and the guide column (53).

8. The automatic mobile powder discharge device for powder barrels according to claim 7, characterized in that: A plurality of guide rods (56) are provided at the insertion end of the movable column (54) facing the guide column (53); the guide rods (56) penetrate the guide column (53) and are slidably connected with the guide column (53).

9. The automatic mobile powder discharge device for powder barrels according to claim 6, characterized in that: A flexible sealing ring (57) is provided at the bottom edge of the cone (52).

10. The automatic mobile powder discharge device for powder barrels according to claim 1, characterized in that: Stairs (8) are provided around the elevated platform (3).

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