Powder logistics conveying device

Abstract

The invention relates to the technical field of powder conveying, in particular to a powder logistics conveying device. A powder logistics conveying device comprises a base, a first mounting plate, a first sliding plate, a mounting rod, an electric wheel, a stabilizing plate, a first guide rod, a second sliding plate, a second guide rod and the like. Two first mounting plates are fixedly connected to the lower side of the base, a first sliding plate is fixedly connected to the middles of the lower sides of the first mounting plates, a mounting rod is fixedly connected to the first sliding plate, the first sliding plate is located in the middle of the mounting rod, and electric wheels are mounted at the two ends of the mounting rod penetrating through the left side and the right side of the first mounting plate. And the mounting rod is slidably connected with the first mounting plate. By arranging the swing mechanism and the lifting mechanism, a motor A and an air cylinder in the swing mechanism and the lifting mechanism can be controlled to drive other parts in the mechanism to automatically move the extraction pipe up, down, left and right, an operator does not need to manually move the extraction pipe, and manpower is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of powder conveying, and in particular to a powder logistics conveying device. Background Art

[0002] Powder is a kind of powder, which is a collection of many small particles. Powder can be divided into granules, micron particles, submicron particles, ultrafine particles, nanoparticles, etc. according to its size. Powder needs to be transported from production to bagging or loading, and a powder conveyor is needed to transport the powder.

[0003] Existing powder conveying devices can be roughly divided into two categories: extraction type and spiral conveying type. The powder extraction conveying device is connected to a pipe on an extraction pump or an extraction machine, and the other end of the pipe is aimed at the powder for extraction. The powder extracted into the pipe will be transported to the designated position by the suction of the extraction equipment. However, since the pipe connected to the extraction equipment is a hose, during the extraction process, manual control of the position of one end of the hose is required. When the powder extraction at one position is completed, the hose needs to be moved to another unextracted position to extract the powder. The spiral conveying device conveys the powder by rotating the internal spiral blades. Since the feed port of the device is usually located above the device, the powder needs to be poured into the feed port manually. During this process, the powder is easy to fly, and the powder needs to be lifted to the feed port manually, which is very laborious. Summary of the invention

[0004] In order to overcome the shortcoming that the existing powder conveying device requires manual control by the operator, the technical problem to be solved is: to provide a convenient, intelligent and labor-saving powder logistics conveying device.

[0005] A powder logistics conveying device comprises a base, a first mounting plate, a first sliding plate, a mounting rod, an electric wheel, a stabilizing plate, a first guide rod, a second sliding plate, a second guide rod, a pipeline fixing plate and an extraction pipe, wherein two first mounting plates are fixedly connected to the lower side of the base, mounting rods are slidably connected to the left and right sides of the first mounting plate, the first sliding plates are fixedly connected to the mounting rods, the first sliding plates are located in the middle part of the lower side of the first mounting plate, the first guide rods are fixedly connected to the inside of the first mounting plate, the middle part of the first guide rods passes through the first mounting plate and is slidably connected to the first mounting plate, electric wheels are installed on the outer sides of the mounting rods, grooves for clamping a powder placement box are arranged on the electric wheels, a stabilizing plate is fixedly connected between the two mounting rods, a rectangular opening is opened on the base, two second sliding plates are slidably connected to the base, the two second sliding plates are both located in the rectangular opening, two second guide rods are slidably connected to the second sliding plate, a pipeline fixing plate is fixedly connected to the upper and lower ends of the four second guide rods, the upper and lower pipeline fixing plates are fixedly connected to the extraction pipe, and the upper and lower ends of the extraction pipe respectively pass through the upper and lower pipeline fixing plates.

[0006] Furthermore, it also includes a swing mechanism for moving the extraction tube left and right. The base is provided with a swing mechanism, which is located behind the extraction tube. The swing mechanism includes a motor A, a rotating plate and a third sliding plate. The motor A is installed on the rear side of the base. The output shaft of the motor A is connected to the rotating plate through a coupling. The second sliding plate is fixedly connected to the third sliding plate. The third sliding plate is divided into a connecting part and a sliding part. The connecting part is fixedly connected to the second sliding plate. The sliding part is located on the upper side of the connecting part close to the direction of the motor A. A strip hole is opened on the rotating plate. The sliding part passes through the strip hole and is connected to the connecting part. The sliding part of the third sliding plate can slide relatively in the strip hole on the rotating plate.

[0007] Furthermore, it also includes a spreading mechanism for adjusting the distance between the electric wheels on both sides. The spreading mechanism is provided on the base and is located in front of the extraction tube.

[0008] Furthermore, the expansion mechanism includes a cylinder, a T-shaped connecting plate, a second mounting plate and a strip connecting plate. The cylinder is installed on the base, the telescopic rod of the cylinder is connected to the T-shaped connecting plate, the outer sides of the left and right stabilizing plates are fixedly connected to the second mounting plates, the left and right second mounting plates are rotatably connected to the strip connecting plates, and the upper ends of the two strip connecting plates are rotatably connected to the T-shaped connecting plate.

[0009] Furthermore, it includes a rotating mechanism for rotating the extraction tube, a rotating mechanism is provided between the base and the extraction tube, the rotating mechanism includes a rack and a rotating gear ring, the base is connected with a rack by bolts, the extraction tube is sleeved with a rotating gear ring, the extraction tube is slidably connected to the rotating gear ring, the rotating gear ring is rotatably connected to the second sliding plate, and the rotating gear ring is meshed with the rack.

[0010] Furthermore, it also includes a lifting mechanism for adjusting the height of the extraction tube. The lifting mechanism is provided on the base and is located behind the extraction tube. The lifting mechanism includes a motor B, a triangular connecting plate, a screw and a transmission assembly. The motor B is installed on the base. The screw is rotatably installed on the base through a mounting seat. The rear side of the pipeline fixing plate is fixedly connected to the triangular connecting plate. The screw is threadedly connected to the triangular connecting plate, and the motor B is connected to the screw through the transmission assembly.

[0011] Furthermore, it also includes a scraping mechanism for scraping powder on both sides inwards, a scraping mechanism is provided between the lower side of the base and the lower pipe fixing plate, the scraping mechanism includes a double-headed telescopic rod, a scraper and a fixed block, the front and rear sides of the lower pipe fixing plate are slidably connected with the double-headed telescopic rod, the double-headed telescopic rod is divided into an outer shell and a telescopic part, the telescopic part of the double-headed telescopic rod is slidably connected to the outer shell, the telescopic part on the same side of the double-headed telescopic rod is fixedly connected to the same scraper, the middle part of the stabilizing plate is fixedly connected to the fixed block, and the bottom of the fixed block is provided with a groove for accommodating the scraper.

[0012] Furthermore, it also includes a clamping mechanism for fixing the scraper when the scraper is working. The clamping mechanism is arranged between the base and the scraping mechanism. The clamping mechanism includes a bevel block, a pressure plate, a spring and a pressure rod. Four bevel blocks are arranged on the lower side of the base. A pressure rod is slidably connected to the double-head telescopic rod. One end of the pressure rod is located in the outer shell of the double-head telescopic rod, and the other end of the pressure rod is fixedly connected to the pressure plate. A spring is wound on the pressure rod, and both ends of the spring are respectively fixedly connected to the pressure plate and the double-head telescopic rod. The bevel block is located above the pressure plate.

[0013] Furthermore, it also includes a sawtooth extraction head, and the lower end of the extraction tube is fixedly connected with the sawtooth extraction head.

[0014] Furthermore, the contact portion between the electric wheel and the powder placement box is made of non-slip rubber material.

[0015] Beneficial effects: 1. The present invention is provided with a swing mechanism and a lifting mechanism, which can control the motor A and the cylinder in the swing mechanism and the lifting mechanism to drive other components in the mechanism to automatically move the extraction tube up, down, left and right, without the operator having to manually move the extraction tube, thus saving manpower.

[0016] 2. The present invention is provided with a rotating mechanism, in which a rotating gear ring mounted on the extraction tube engages with a rack. When the extraction tube moves left and right, the rack drives the rotating gear ring and the extraction tube to rotate. The rotation of the extraction tube can evenly extract the powder at the lower end of the tube, stir and disperse the powder at the lower end of the extraction tube, and avoid affecting the extraction effect due to the powder sticking together.

[0017] 3. The present invention is provided with an expansion mechanism, and the cylinder in the expansion mechanism drives the T-shaped connecting plate to move up and down, thereby driving the strip connecting plates on both sides to open and close, and driving the stabilizing plates and electric wheels on both sides to move outward, so as to achieve the effect of automatically controlling the distance between the electric wheels on both sides.

[0018] 4. The present invention provides a sawtooth extraction head at the lower end of the extraction tube. When the extraction tube rotates, the contact area between the sawtooth extraction head and the powder is larger, which can better stir the powder and improve the extraction effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the electric wheel mounting mechanism and the extraction tube mounting mechanism of the present invention.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the swing mechanism of the present invention.

[0022] Figure 4 It is an enlarged three-dimensional structural schematic diagram of the swing mechanism of the present invention.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the propping mechanism of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating mechanism of the present invention.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the extraction tube and the sawtooth extraction head of the present invention.

[0026] Figure 8 It is a three-dimensional structural schematic diagram of the lifting mechanism of the present invention.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the scraping mechanism of the present invention.

[0028] Fig.10 It is a three-dimensional structural schematic diagram of the scraping mechanism of the present invention from another viewing angle.

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the clamping mechanism of the present invention.

[0030] Fig.12 It is an enlarged three-dimensional structural schematic diagram of the clamping mechanism of the present invention.

[0031] Reference numerals: 1-base, 2-first mounting plate, 3-first sliding plate, 4-mounting rod, 5-motor wheel, 6-stabilizing plate, 7-first guide rod, 8-second sliding plate, 9-second guide rod, 10-pipe fixing plate, 11-extraction tube, 111-sawtooth extraction head, 12-swing mechanism, 121-motor A, 122-rotating plate, 123-third sliding plate, 13-opening mechanism, 131-cylinder, 132-T-shaped connecting plate, 13 3-second mounting plate, 134-strip connecting plate, 14-rotating mechanism, 141-rack, 142-rotating gear ring, 15-lifting mechanism, 151-motor B, 152-triangular connecting plate, 153-screw, 154-transmission assembly, 16-scraping mechanism, 161-double-headed telescopic rod, 162-scraper, 163-fixed block, 17-clamping mechanism, 171-angled block, 172-pressing plate, 173-spring, 174-pressing rod. DETAILED DESCRIPTION

[0032] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0033] Embodiment: A powder flow conveying device, such as Figure 2As shown, it includes a base 1, a first mounting plate 2, a first sliding plate 3, a mounting rod 4, an electric wheel 5, a stabilizing plate 6, a first guide rod 7, a second sliding plate 8, a second guide rod 9, a pipeline fixing plate 10 and an extraction tube 11. Two first mounting plates 2 are welded on the lower side of the base 1. The left and right sides of the first mounting plates 2 are slidably connected with the mounting rods 4. The mounting rods 4 are fixedly connected with the first sliding plates 3. The first sliding plate 3 is located in the middle of the lower side of the first mounting plate 2. The first guide rod 7 is fixedly connected inside the first mounting plate 2. The middle part of the first guide rod 7 passes through the first mounting plate 2 and is slidably connected to the first mounting plate 2. Electric wheels 5 are installed on the outer sides of the mounting rods 4. The first guide rods 7 can guide the electric wheels 5 on both sides. The electric wheels 5 have recesses for clamping the powder placement box. The contact part of the electric wheel 5 and the powder placement box is made of non-slip rubber material, which makes the device more stable on the powder placement box. A stabilizing plate 6 is fixedly connected between the two mounting rods 4. A rectangular opening is opened on the base 1. Two second sliding plates 8 are slidably connected to the base 1. The two second sliding plates 8 are both located in the rectangular opening. Two second guide rods 9 are slidably connected to the second sliding plates 8. The upper and lower ends of the four second guide rods 9 are fixedly connected to a pipeline fixing plate 10 by screws. The upper and lower pipeline fixing plates 10 are fixedly connected to the extraction pipe 11. The upper and lower ends of the extraction pipe 11 pass through the upper and lower pipeline fixing plates 10 respectively. The second sliding plate 8 and the extraction pipe 11 are slidably connected, and the side of the second sliding plate 8 close to the extraction pipe 11 is arc-shaped.

[0034] When the staff needs to transport the powder in the box to the designated location for bagging or loading, first adjust the distance between the electric wheels 5 on both sides of the device so that the device can be stably placed on the left and right walls of the powder placement box, and pull the stabilizing plates 6 on both sides to move the mounting rod 4 and the electric wheels 5 to both sides. When the electric wheels 5 move to the appropriate position, the grooves of the electric wheels 5 are inserted into the upper edge of the box wall to place the device. Then connect the upper end of the extraction tube 11 to the extraction machine, move the second guide rod 9, the pipeline fixing plate 10 and the extraction tube 11 downward as a whole until the lower end of the extraction tube 11 is close to the powder in the box, start the extraction machine, and the powder at the lower end of the extraction tube 11 is transported to the designated location along the pipeline by the extraction tube 11, and the powder at the lower end of the extraction tube 11 is extracted Finally, the second guide rod 9, the pipe fixing plate 10 and the extraction tube 11 are moved leftward or rightward as a whole to the position where there is powder at the lower end of the extraction tube 11, and extraction is continued. When the extraction tube 11 is moved up, down, leftward, and rightward and there is no powder at the lower end of the extraction tube 11, the electric wheel 5 is started, and the rotation of the electric wheel 5 drives the device to move back and forth on the powder placement box. When the device moves to the lower end of the extraction tube 11 where there is powder, the electric wheel 5 is turned off, and the above-mentioned operation of moving the extraction tube 11 up and down and leftward and rightward is repeated until the powder at that position in the box is exhausted, and the electric wheel 5 is continued to be started to move the device. When the powder in the box is exhausted, the extraction machine is turned off, the upper end of the extraction tube 11 is separated from the extraction machine, and the second guide rod 9, the pipe fixing plate 10 and the extraction tube 11 are moved upward back to the initial position to complete the powder transportation in the box.

[0035] like Figure 1 , Figure 3 and Figure 4 As shown, it also includes a swing mechanism 12 for moving the extraction tube 11 left and right. The base 1 is provided with a swing mechanism 12, and the swing mechanism 12 is located at the rear of the extraction tube 11. The swing mechanism 12 includes a motor A121, a rotating plate 122 and a third sliding plate 123. The motor A121 is installed on the rear side of the base 1, and the rotating plate 122 is connected to the output shaft of the motor A121 through a coupling. The third sliding plate 123 is slidably connected between the two second guide rods 9 on the rear side of the base 1, and the third sliding plate 123 is fixedly connected to the second sliding plate 8. The third sliding plate 123 is divided into a connecting part and a sliding part. The connecting part is slidably connected to the two second guide rods 9, and the connecting part is fixedly connected to the second sliding plate 8. The sliding part is located on the upper side of the connecting part close to the direction of the motor A121. A strip hole is opened on the rotating plate 122, and the sliding part passes through the strip hole to be connected to the connecting part, and the sliding part of the third sliding plate 123 can slide relatively in the strip hole on the rotating plate 122.

[0036] Start the motor A121 to rotate it forward. The forward rotation of the motor A121 drives the rotating plate 122 to rotate forward. The forward rotation of the rotating plate 122 causes the sliding portion of the third sliding plate 123 to slide in the strip hole on the rotating plate 122, thereby driving the second guide rod 9, the pipeline fixing plate 10 and the extraction tube 11 to move to the left as a whole. Similarly, starting the motor A121 to rotate it in the reverse direction will drive the second guide rod 9, the pipeline fixing plate 10 and the extraction tube 11 to move to the right as a whole. The operator can adjust the position of the extraction tube 11 left and right by starting the motor A121 to rotate forward and reverse, so that the extraction tube 11 can extract powder from more positions in the box. The operator does not need to manually move the extraction tube 11 left and right, saving manpower.

[0037] like Figure 5 As shown, it also includes a spreading mechanism 13 for adjusting the distance between the electric wheels 5 on both sides. The spreading mechanism 13 is provided on the base 1, and the spreading mechanism 13 is located in front of the extraction tube 11. The spreading mechanism 13 includes a cylinder 131, a T-shaped connecting plate 132, a second mounting plate 133 and a strip connecting plate 134. The base 1 is installed with a cylinder 131, and the telescopic rod of the cylinder 131 is connected with the T-shaped connecting plate 132. The outer sides of the left and right stabilizing plates 6 are fixedly connected with the second mounting plates 133, and the left and right second mounting plates 133 are rotatably connected to the strip connecting plate 134 through a rotating shaft. The second mounting plate 133 is located at the lower end of the strip connecting plate 134, and the upper ends of the two strip connecting plates 134 are rotatably connected to the T-shaped connecting plate 132 through a rotating shaft.

[0038] Start the cylinder 131, and the shortening of the telescopic rod of the cylinder 131 will drive the T-shaped connecting plate 132 to move downward. The downward movement of the T-shaped connecting plate 132 causes the strip connecting plates 134 on both sides to open outward, thereby causing the second mounting plates 133 and the stabilizing plate 6 on both sides to move outward, driving the two ends of the mounting rod 4 to extend, thereby increasing the distance between the electric wheels 5 on both sides. Conversely, starting the cylinder 131 to extend the telescopic rod of the cylinder 131 will reduce the distance between the electric wheels 5 on both sides. By controlling the lifting and lowering of the telescopic rod of the cylinder 131, the effect of automatically adjusting the distance between the electric wheels 5 on both sides can be achieved.

[0039] like Figure 6 As shown, it also includes a rotating mechanism 14 for rotating the extraction tube 11. The rotating mechanism 14 is provided between the base 1 and the extraction tube 11. The rotating mechanism 14 includes a rack 141 and a rotating gear ring 142. The base 1 is connected with the rack 141 by bolts, and the extraction tube 11 is sleeved with a rotating gear ring 142. The extraction tube 11 is slidably connected with the rotating gear ring 142. The rotating gear ring 142 is rotatably connected with the second sliding plate 8. The rotating gear ring 142 is meshed with the rack 141. A guide bar is provided on the extraction tube 11. The guide bar fits with the groove on the inner side of the rotating gear ring 142, so that the extraction tube 11 and the rotating gear ring 142 will not rotate relative to each other.

[0040] When the second guide rod 9, the pipeline fixing plate 10 and the extraction tube 11 move to the left or right as a whole, the rotating gear ring 142 on the extraction tube 11 engages with the rack 141, which will drive the extraction tube 11 to rotate. The rotation of the extraction tube 11 can evenly extract the powder at the lower end of the tube 11, stir and disperse the powder at the lower end of the extraction tube 11, and avoid affecting the extraction effect due to the powder sticking together.

[0041] like Figure 7 As shown, a sawtooth extraction head 111 is also included, and the sawtooth extraction head 111 is fixedly connected to the lower end of the extraction tube 11. By arranging the sawtooth extraction head at the lower end of the extraction tube, when the extraction tube rotates, the contact area between the sawtooth extraction head and the powder is larger, which can better stir the powder and improve the extraction effect.

[0042] like Figure 8 As shown, it also includes a lifting mechanism 15 for adjusting the height of the extraction tube 11. The lifting mechanism 15 is provided on the base 1, and the lifting mechanism 15 is located at the rear of the extraction tube 11. The lifting mechanism 15 includes a motor B151, a triangular connecting plate 152, a screw 153 and a transmission assembly 154. The motor B151 is installed on the base 1, and the screw 153 is rotatably installed on the base 1 through a mounting seat. The triangular connecting plate 152 is fixedly connected to the rear side of the pipeline fixing plate 10, and the screw 153 is threadedly connected to the triangular connecting plate 152. The motor B151 is connected to the screw 153 through the transmission assembly. In this embodiment, the transmission assembly 154 is a pulley group, and the pulley group includes a rotating wheel A, a rotating wheel B and a belt mounted on the rotating wheel A and the rotating wheel B. The output shaft of the motor B is connected to the rotating wheel A, and the lower end of the screw is connected to the rotating wheel B.

[0043] When it is necessary to move the extraction tube 11 up and down, the motor B151 can be started. The rotation of the motor B151 will drive the rotating wheel A in the transmission assembly 154 at the bottom of the motor B151 to rotate, and the rotating wheel B with the same belt as the rotating wheel A will also rotate accordingly, thereby causing the screw 153 to rotate. The rotation of the screw 153 will drive the triangular connecting plate 152 threadedly connected to the screw 153 to move up and down, thereby causing the second guide rod 9, the pipeline fixing plate 10 and the extraction tube 11 to move up and down as a whole. The extraction tube 11 can be moved up and down by controlling the forward and reverse rotation of the motor B151, and there is no need for an operator to move the extraction tube 11 up and down, saving manpower.

[0044] like Fig. 9 and Fig.10As shown, it also includes a scraping mechanism 16 for scraping powder on both sides inward. A scraping mechanism 16 is provided between the lower side of the base 1 and the pipe fixing plate 10 below. The scraping mechanism 16 includes a double-headed telescopic rod 161, a scraper 162 and a fixed block 163. The front and rear sides of the pipe fixing plate 10 below are both slidably connected with the double-headed telescopic rod 161. The double-headed telescopic rod 161 is divided into an outer shell and a telescopic part. The telescopic part of the double-headed telescopic rod 161 is slidably connected to the outer shell. The telescopic part on the same side of the double-headed telescopic rod 161 is fixedly connected to the same scraper 162. A fixed block 163 is fixedly connected to the middle of the stabilizing plate 6. A groove for accommodating the scraper is provided at the bottom of the fixed block 163.

[0045] Since the position of the extraction tube 11 moving left and right is limited, when the distance between the left and right walls of the powder placement box is large, the distance between the electric wheels 5 on both sides of the device is pulled to the same as the distance between the left and right walls of the powder placement box to ensure that the left and right walls of the powder placement box can be stuck in the grooves on the electric wheels 5 on both sides. When the stabilizing plates 6 on both sides are pulled outward to adjust the distance between the electric wheels 5 on both sides, the fixed blocks 163 on the stabilizing plates 6 will move to both sides with the stabilizing plates 6. At this time, the scraper 162 is located in the fixed block 163 and is moved to both sides by the fixed block 163. After placing the device above the powder placement box, the position of the extraction tube 11 is adjusted according to the position of the powder in the powder placement box; when the extraction tube 11 moves downward, it is pulled away from the extraction tube 11. The pipe fixing plate 10 fixedly connected to 11 also moves downward, and the double-headed telescopic rod 161 connected to the front and rear of the lower pipe fixing plate 10 also moves downward, thereby driving the scraper 162 to move downward and separate from the fixing plate. When the lower end of the extraction tube 11 moves close to the powder, the scrapers 162 on both sides also move to the left and right walls of the powder placement box, and can scrape the powder close to the left and right walls inward, so that the extraction tube 11 can be better extracted; when the extraction tube 11 moves upward to its initial position, the double-headed telescopic rod 161 and the scraper 162 will also move upward accordingly. When the scraper 162 moves back into the fixed block 163, the cylinder 131 can be started to move the stabilizing plates 6 on both sides inward to make the scrapers 162 on both sides move inward and the double-headed telescopic rod 161 shortened.

[0046] like Fig.11 and Fig.12As shown, it also includes a clamping mechanism 17 for fixing the scraper 162 when the scraper 162 is working. A clamping mechanism 17 is provided between the base 1 and the scraping mechanism 16. The clamping mechanism 17 includes a bevel block 171, a pressure plate 172, a spring 173 and a pressure rod 174. Four bevel blocks 171 are provided on the lower side of the base 1. A pressure rod 174 is slidably connected to the double-headed telescopic rod 161. One end of the pressure rod 174 is located in the outer shell of the double-headed telescopic rod 161, and the other end of the pressure rod 174 is fixedly connected to the pressure plate 172. A spring 173 is wound on the pressure rod 174. Both ends of the spring 173 are fixedly connected to the pressure plate 172 and the double-headed telescopic rod 161, respectively. The bevel block 171 is located above the pressure plate 172.

[0047] When the scraper 162 moves downward and leaves the fixed block 163, the pressure rod 174 and the pressure plate 172 also move downward. When the scraper 162 is located in the fixed block 163, the spring 173 is in a stretched state. Due to the reset effect of the spring 173, when the pressure plate 172 moves downward, it moves along the inclined surface of the bevel block 171 toward the direction close to the double-headed telescopic rod 161, thereby driving the pressure rod 174 to move toward the direction close to the double-headed telescopic rod 161 until it contacts the telescopic part of the double-headed telescopic rod 161. Due to the reset effect of the spring 173, the pressure rod 174 is 74 has a pressing effect on the telescopic part to prevent the scraper 162 from contacting the powder or the telescopic part of the double-headed telescopic rod 161 from moving when the extraction tube 11 moves left and right, causing the scraper 162 to shift; when the scraper 162 moves upward back to the initial position, the pressure plate 172 moves upward and moves along the inclined surface of the bevel block 171 away from the double-headed telescopic rod 161, thereby driving the pressure rod 174 to move away from the double-headed telescopic rod 161 until it is separated from the telescopic part of the double-headed telescopic rod 161, and the telescopic part of the double-headed telescopic rod 161 can be retracted normally into the double-headed telescopic rod housing.

[0048] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A powder flow conveying device, characterized in that: The invention comprises a base (1), a first mounting plate (2), a first sliding plate (3), a mounting rod (4), an electric wheel (5), a stabilizing plate (6), a first guide rod (7), a second sliding plate (8), a second guide rod (9), a pipeline fixing plate (10) and an extraction pipe (11). The base (1) is fixedly connected to two first mounting plates (2) on the lower side. The first mounting plates (2) are slidably connected to the mounting rods (4) on both left and right sides. The mounting rods (4) are fixedly connected to the first sliding plates (3). The first sliding plates (3) are located at the middle part of the lower side of the first mounting plates (2). The first guide rod (7) is fixedly connected inside the first mounting plates (2). The middle part of the first guide rod (7) passes through the first mounting plates (2) and is slidably connected to the first mounting plates (2). The mounting rod (4) is connected in a dynamic manner, and an electric wheel (5) is installed on the outer side of each mounting rod (4). The electric wheel (5) has a groove for clamping the powder placement box. A stabilizing plate (6) is fixedly connected between the two mounting rods (4). A rectangular opening is opened on the base (1). Two second sliding plates (8) are slidably connected to the base (1). The two second sliding plates (8) are both located in the rectangular opening. Two second guide rods (9) are slidably connected to the second sliding plates (8). The upper and lower ends of the four second guide rods (9) are fixedly connected to a pipeline fixing plate (10). The upper and lower pipeline fixing plates (10) are fixedly connected to the extraction pipe (11). The upper and lower ends of the extraction pipe (11) pass through the upper and lower pipeline fixing plates (10) respectively.

2. A powder flow conveying device according to claim 1, characterized in that: The invention also comprises a swing mechanism (12) for moving the extraction tube (11) left and right. The base (1) is provided with the swing mechanism (12). The swing mechanism (12) is located behind the extraction tube (11). The swing mechanism (12) comprises a motor A (121), a rotating plate (122) and a third sliding plate (123). The motor A (121) is installed on the rear side of the base (1). The rotating plate (122) is connected to the output shaft of the motor A (121) via a coupling. The third sliding plate (123) is fixedly connected to the second sliding plate (8). The third sliding plate (123) is divided into a connecting portion and a sliding portion. The connecting portion is fixedly connected to the second sliding plate (8). The sliding portion is located on the upper side of the connecting portion close to the direction of the motor A (121). The rotating plate (122) is provided with a strip hole. The sliding portion passes through the strip hole and is connected to the connecting portion. The sliding portion of the third sliding plate (123) can slide relatively in the strip hole on the rotating plate (122).

3. A powder flow conveying device according to claim 2, characterized in that: It also includes a spreading mechanism (13) for adjusting the distance between the electric wheels (5) on both sides. The spreading mechanism (13) is provided on the base (1), and the spreading mechanism (13) is located in front of the extraction tube (11).

4. A powder flow conveying device according to claim 3, characterized in that: The spreading mechanism (13) comprises a cylinder (131), a T-shaped connecting plate (132), a second mounting plate (133) and a strip connecting plate (134); the cylinder (131) is mounted on the base (1); the telescopic rod of the cylinder (131) is connected to the T-shaped connecting plate (132); the outer sides of the left and right stabilizing plates (6) are fixedly connected to the second mounting plates (133); the left and right second mounting plates (133) are rotatably connected to the strip connecting plate (134); and the upper ends of the two strip connecting plates (134) are rotatably connected to the T-shaped connecting plate (132).

5. A powder flow conveying device according to claim 4, characterized in that: The invention also comprises a rotating mechanism (14) for rotating the extraction tube (11). The rotating mechanism (14) is provided between the base (1) and the extraction tube (11). The rotating mechanism (14) comprises a rack (141) and a rotating gear ring (142). The base (1) is connected with the rack (141) by bolts. The extraction tube (11) is sleeved with the rotating gear ring (142). The extraction tube (11) is slidably connected with the rotating gear ring (142). The rotating gear ring (142) is rotatably connected with the second sliding plate (8). The rotating gear ring (142) is meshed with the rack (141).

6. A powder flow conveying device according to claim 5, characterized in that: The invention also comprises a lifting mechanism (15) for adjusting the height of the extraction pipe (11). The lifting mechanism (15) is provided on the base (1). The lifting mechanism (15) is located at the rear of the extraction pipe (11). The lifting mechanism (15) comprises a motor B (151), a triangular connecting plate (152), a screw (153) and a transmission assembly (154). The motor B (151) is installed on the base (1). The screw (153) is rotatably installed on the base (1) via a mounting seat. The triangular connecting plate (152) is fixedly connected to the rear side of the pipeline fixing plate (10). The screw (153) is threadedly connected to the triangular connecting plate (152). The motor B (151) is connected to the screw (153) via the transmission assembly.

7. A powder flow conveying device according to claim 6, characterized in that: The invention also comprises a scraping mechanism (16) for scraping powder on both sides inwards. The scraping mechanism (16) is provided between the lower side of the base (1) and the lower pipe fixing plate (10). The scraping mechanism (16) comprises a double-headed telescopic rod (161), a scraper (162) and a fixing block (163). The front and rear sides of the lower pipe fixing plate (10) are both slidably connected to the double-headed telescopic rod (161). The double-headed telescopic rod (161) is divided into an outer shell and a telescopic part. The telescopic part of the double-headed telescopic rod (161) is slidably connected to the outer shell. The telescopic parts on the same side of the double-headed telescopic rod (161) are fixedly connected to the same scraper (162). The middle part of the stabilizing plate (6) is fixedly connected to the fixing block (163). The bottom of the fixing block (163) is provided with a groove for accommodating the scraper (162).

8. A powder flow conveying device according to claim 7, characterized in that: The invention also includes a clamping mechanism (17) for fixing the scraper (162) when the scraper (162) is working. The clamping mechanism (17) is provided between the base (1) and the scraping mechanism (16). The clamping mechanism (17) includes an angled block (171), a pressure plate (172), a spring (173) and a pressure rod (174). Four angled blocks (171) are provided on the lower side of the base (1). A pressure rod (174) is slidably connected to the double-head telescopic rod (161). One end of the pressure rod (174) is located in the housing of the double-head telescopic rod (161). The other end of the pressure rod (174) is fixedly connected to the pressure plate (172). A spring (173) is wound around the pressure rod (174). The two ends of the spring (173) are respectively fixedly connected to the pressure plate (172) and the double-head telescopic rod (161). The angled block (171) is located above the pressure plate (172).

9. A powder flow conveying device according to claim 8, characterized in that: It also includes a sawtooth extraction head (111), and the lower end of the extraction tube (11) is fixedly connected to the sawtooth extraction head (111).

10. A powder flow conveying device according to claim 9, characterized in that: The contact portion between the electric wheel (5) and the powder placement box is made of non-slip rubber material.

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