PTFE powder automatic barreling and packaging machine

Abstract

A PTEE powder automatic barreling packaging machine belongs to the field of barrel packaging machinery and comprises a feeding box, a vertically arranged segmented feeding mechanism is arranged at the upper end of the feeding box, the segmented feeding mechanism comprises a first adjusting valve, the first adjusting valve is connected with the upper end of the feeding box, at least two sets of discharging barrels are arranged at the upper end of the first adjusting valve, an adjusting valve is arranged between the discharging barrels, and the adjusting valve is connected with the first adjusting valve. A horizontally-arranged vibration feeding conveyor is arranged at the lower end of the feeding box, a dust removal mechanism is arranged at a discharging port in front of the vibration feeding conveyor, a weighing and compacting mechanism is arranged below the dust removal mechanism and can convey packaging barrels, and a sampling mechanism is arranged on the side of the dust removal mechanism. According to the PTFE powder packaging device, reliable and stable automatic packaging of PTFE powder is achieved through coordination and cooperation of all the mechanisms, the labor intensity of workers is relieved, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to an automatic barrel packaging machine for PTFE powder, belonging to the field of barrel packaging machinery. Background Art

[0002] PTFE (polytetrafluoroethylene) is a high molecular polymer with excellent chemical stability. It is widely used in the industrial field due to its good properties such as corrosion resistance, sealing, electrical insulation, heat resistance and cold resistance. However, PTFE powder often agglomerates due to the interaction of fluorine molecules and is easily fibrotic and denatured after being squeezed. The denatured powder cannot be put into use. Therefore, the packaging process of PTFE powder has always adopted the manual filling packaging method, which causes problems such as high labor intensity and low production efficiency. Utility Model Content

[0003] In order to solve the problems of high labor intensity and low production efficiency of workers in the manual packaging process of PTFE powder in the prior art, the utility model proposes an automatic barrel packaging machine for PTFE powder, which comprises a feeding box, a vertically arranged segmented feeding mechanism is provided at the upper end of the feeding box, the segmented feeding mechanism comprises a first regulating valve, the first regulating valve is connected to the upper end of the feeding box, at least two groups of discharge barrels are provided at the upper end of the first regulating valve, and regulating valves are provided between the discharge barrels, a horizontally arranged vibrating feeding conveyor is provided at the lower end of the feeding box, a dust removal mechanism is provided at the front discharge port of the vibrating feeding conveyor, a weighing and solidifying mechanism is provided below the dust removal mechanism, and the weighing and solidifying mechanism can realize the transportation of the packaging barrels.

[0004] A sampling mechanism is provided on the left side of the dust removal mechanism.

[0005] Three groups of discharge barrels are provided at the upper end of the first regulating valve, which are, from bottom to top, a first-level discharge barrel, a second-level discharge barrel, and a third-level discharge barrel. A second regulating valve is provided between the first-level discharge barrel and the second-level discharge barrel, a third regulating valve is provided between the second-level discharge barrel and the third-level discharge barrel, an air intake valve is provided on the second-level discharge barrel, and at least one group of material level detection points is provided on the first-level discharge barrel.

[0006] The vibrating feeder conveyor comprises a coarse feed pipeline, a feed port of the coarse feed pipeline is connected to the lower end of a feed box, the coarse feed pipeline is driven by a coarse feed vibration motor to achieve conveying, the middle lower end of the coarse feed pipeline is connected to the feed port of a fine feed pipeline, the discharge port of the fine feed pipeline is located at the lower rear part of the discharge port of the coarse feed pipeline, the horizontal center lines of the coarse feed pipeline and the fine feed pipeline are in the same vertical plane, and the fine feed pipeline is driven by the fine feed vibration motor to achieve conveying.

[0007] A splitter plate is provided on the horizontal center line of the coarse feed pipeline outlet, and the splitter plate divides the coarse feed pipeline outlet into three paths.

[0008] The dust removal mechanism includes a support frame, which is connected to an external frame. A mounting cylinder is provided at the upper end of the support frame. The upper end of the mounting cylinder is connected to the discharge port of a coarse feeding pipeline, and the rear end of the mounting cylinder is connected to the discharge port of a fine feeding pipeline. A dust hood is provided at the lower end of the support frame. The inner diameter of the dust hood is not less than the outer diameter of the packaging barrel. The dust hood is driven to vertically rise and fall by a dust removal lifting cylinder. The cylinder body of the dust removal lifting cylinder is connected to the support frame, and the dust hood is connected to the dust removal pipeline.

[0009] The left end of the installation cylinder is connected to a horizontally arranged sampling tube, and a vertically arranged sample delivery tube is provided below the middle of the sampling tube.

[0010] The sampling mechanism includes a sampling bracket, which is connected to an external frame. The sampling bracket is hinged to the cylinder body of a horizontal cylinder. The cylinder rod of the horizontal cylinder is hinged to a sampling connecting plate. A horizontally arranged sampling spoon is provided on the sampling connecting plate. The sampling spoon is arranged inside the sampling tube. The sampling spoon is driven by the horizontal cylinder to move horizontally left and right. A swing cylinder is also provided on the sampling connecting plate, which drives the sampling spoon to swing up and down.

[0011] The weighing and solidifying mechanism includes a base frame, a roller conveyor is provided above the base frame, a horizontally retractable clamping mechanism is provided on the upper side of the roller conveyor, a weighing mechanism is provided below the roller conveyor, a vertically arranged weighing bracket is provided on the upper end of the weighing mechanism, the weighing bracket is located between the conveying rollers of the roller conveyor, the roller conveyor is driven by a lifting cylinder to achieve vertical lifting with multi-point positioning, when the roller conveyor is in the lower position, its conveying rollers are lower than the upper end surface of the weighing bracket, and when the roller conveyor is above the middle position, its conveying rollers are not lower than the upper end surface of the weighing bracket.

[0012] The beneficial effects of the utility model are:

[0013] A. The coordinated cooperation of the feeding box, segmented feeding mechanism, vibrating feeding conveyor, dust removal mechanism and weighing and solidifying mechanism realizes the reliable and stable automatic packaging of PTFE powder, reduces the labor intensity of workers and greatly improves production efficiency.

[0014] B. Since the PTFE powder is blown into the segmented feeding mechanism through the cyclone separator in the front section, positive pressure is generated when the powder enters the segmented feeding mechanism. The positive pressure will not only affect the feeding speed during the subsequent packaging and feeding, but also cause the powder to scatter to the outside of the equipment. Therefore, the first regulating valve set in the segmented feeding mechanism and the regulating valve between the discharge barrel are used to control the on-off, so that segmented storage and packaging feeding can be carried out, and the positive pressure is isolated during the packaging and feeding process, maintaining a stable material flow, improving the packaging efficiency, and improving the reliability of the equipment.

[0015] C. The method of gravity feeding of each level of the feeding barrel in the segmented feeding mechanism replaces the traditional vertical spiral feeding method, avoiding the problem of PTFE powder being deformed due to extrusion during the feeding process; on the other hand, the feeding barrels at each level can reduce the flow resistance of the powder during the feeding process and will not produce bridging phenomenon, thus avoiding the bridge blockage problem caused by the hopper structure during the flow of segmented storage materials.

[0016] D. The air inlet valve is provided on the secondary discharge barrel, so that the powder around the second regulating valve can be purged during the closing process of the second regulating valve, so that the powder is not squeezed during the closing process of the second regulating valve, thereby not affecting the quality of the powder.

[0017] E. During the feeding process, the vibrating feeder is used to loosen the agglomerated PTFE powder in time through vibration without extruding the powder and causing it to be denatured, thereby improving the final packaging quality of the PTFE powder and enhancing the reliability of the automatic packaging of the PTFE powder.

[0018] F. The opening angle of the discharge door inside the feed box is used to control the powder flow entering the vibrating feeder conveyor, which can effectively control the coarse feeding amount and fine feeding amount, and cooperate with the weighing solidification mechanism to improve the weighing accuracy.

[0019] G. The weighing and solidifying functions of the powder are integrated in one in the weighing and solidifying mechanism. The lifting cylinder drives the roller conveyor to realize multi-point lifting and lowering actions. This not only ensures that the weighing is not affected by the roller conveyor, thus ensuring the accuracy of the weighing, but also discharges the air mixed in the powder in the barrel during the weighing process and reduces the repose angle of the powder, so that the powder is evenly solid in the barrel.

[0020] H. The outlet of the coarse feeding pipeline is divided into three outlets by using a diverter plate, and one outlet of the fine feeding pipeline is added, so that the PTFE powder entering the packaging barrel has four landing points, which effectively reduces the repose angle generated when the powder falls, makes the filling rate of the powder in the barrel more uniform, and further speeds up the efficiency of the powder in the barrel.

[0021] I. The sampling spoon installed inside the dust removal mechanism moves horizontally to the position below the discharge port for quantitative sampling. After sampling, it returns to the sample delivery tube and swings downward to drop the sample out of the sample delivery tube. On the one hand, the PTFE powder will not be squeezed during the sampling process, so that the quality of the sample is not affected, thereby improving the accuracy of the test sample; on the other hand, continuous sampling can be carried out during the packaging process of each barrel without affecting the normal packaging efficiency, further ensuring that the total amount of the tested sample is representative. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional axonometric view of the utility model automatic barrel filling and packaging machine.

[0023] Figure 2 It is a structural diagram of the segmented feeding mechanism.

[0024] Figure 3 It is a structural diagram of a vibrating feeder conveyor.

[0025] Figure 4 It is a structural diagram of the vibrating feeder conveyor from another angle.

[0026] Figure 5 It is a structural diagram of the dust removal mechanism.

[0027] Figure 6 It is a structural diagram of the sampling mechanism.

[0028] Figure 7 It is a structural diagram of a weighing solid mechanism.

[0029] Figure 8 yes Figure 7 Schematic diagram of the middle roller conveyor in the lower position.

[0030] Fig. 9 yes Figure 7 Schematic diagram of the middle roller conveyor in the upper position.

[0031] Fig.10 This is a schematic diagram of the status of PTFE powder packaging process.

[0032] Description of reference numerals:

[0033] 1-feeding box; 2-segmented feeding mechanism; 21-first regulating valve; 22-first stage unloading barrel; 23-material level detection point; 24-second regulating valve; 25-second stage unloading barrel; 26-intake valve; 27-third regulating valve; 28-third stage unloading barrel; 3-vibrating feeding conveyor; 31-coarse feeding pipeline; 32-fine feeding pipeline; 33-fine feeding vibration motor; 34-coarse feeding vibration motor; 35-dividing plate; 4-sampling mechanism; 41-sampling support Frame; 42-horizontal cylinder; 43-sampling connecting plate; 44-swinging cylinder; 45-sampling spoon; 5-dust removal mechanism; 51-support frame; 52-dust removal lifting cylinder; 53-installation cylinder; 54-sampling tube; 55-sample delivery tube; 56-dust cover; 57-dust removal pipeline; 6-weighing and solidifying mechanism; 61-base frame; 62-lifting cylinder; 63-roller conveyor; 64-clamping mechanism; 65-weighing bracket; 66-weighing mechanism; 7-packaging barrel. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments are exemplary and intended to be used to explain the utility model, but should not be understood as limiting the utility model.

[0035] See also Figure 1 to Figure 7 A PTFE powder automatic barrel packaging machine comprises a feeding box 1, a vertically arranged segmented feeding mechanism 2 is provided at the upper end of the feeding box 1, the segmented feeding mechanism 2 comprises a first regulating valve 21, the first regulating valve 21 is connected to the upper end of the feeding box 1, at least two groups of discharge barrels are provided at the upper end of the first regulating valve 21, and regulating valves are provided between the discharge barrels, a horizontally arranged vibrating feeding conveyor 3 is provided at the lower end of the feeding box 1, a dust removal mechanism 5 is provided at the front discharge port of the vibrating feeding conveyor 3, a weighing and solidifying mechanism 6 is provided below the dust removal mechanism 5, and the weighing and solidifying mechanism 6 can realize the transportation of the packaging barrel 7.

[0036] Furthermore, three groups of discharge barrels are provided at the upper end of the first regulating valve 21, which are, from bottom to top, a first-level discharge barrel 22, a second-level discharge barrel 25, and a third-level discharge barrel 28. A second regulating valve 24 is provided between the first-level discharge barrel 22 and the second-level discharge barrel 25, a third regulating valve 27 is provided between the second-level discharge barrel 25 and the third-level discharge barrel 28, an air intake valve 26 is provided on the second-level discharge barrel 25, and at least one group of material level detection points 23 are provided on the first-level discharge barrel 22. The material level detection points 23 can be set on the discharge barrels at each level as needed to accurately control the discharge level.

[0037] Furthermore, the vibrating feeder conveyor 3 includes a coarse feed pipeline 31, the feed port of the coarse feed pipeline 31 is connected to the lower end of the feed box 1, the coarse feed pipeline 31 is driven by a coarse feed vibration motor 34 to achieve conveying, the middle lower end of the coarse feed pipeline 31 is connected to the feed port of the fine feed pipeline 32, the discharge port of the fine feed pipeline 32 is located below and at the rear of the discharge port of the coarse feed pipeline 31, the horizontal center lines of the coarse feed pipeline 31 and the fine feed pipeline 32 are in the same vertical plane, and the fine feed pipeline 32 is driven by a fine feed vibration motor 33 to achieve conveying.

[0038] Furthermore, a splitter plate 35 is provided on the horizontal center line of the discharge port of the coarse feed pipeline 31, and the splitter plate 35 divides the discharge port of the coarse feed pipeline 31 into three paths.

[0039] Furthermore, the dust removal mechanism 5 includes a support frame 51, which is connected to an external frame. A mounting cylinder 53 is provided at the upper end of the support frame 51. The upper end of the mounting cylinder 53 is connected to the discharge port of the coarse feeding pipeline 31, and the rear end of the mounting cylinder 53 is connected to the discharge port of the fine feeding pipeline 32. A dust hood 56 is provided at the lower end of the support frame 51. The inner diameter of the dust hood 56 is not less than the outer diameter of the packaging barrel 7. The dust hood 56 is driven to vertically lift by the dust removal lifting cylinder 52. The cylinder body of the dust removal lifting cylinder 52 is connected to the support frame 51, and the dust hood 56 is connected to the dust removal pipeline 57.

[0040] Furthermore, the left end of the mounting tube 53 is connected to a horizontally arranged sampling tube 54 , and a vertically arranged sample delivery tube 55 is provided below the middle of the sampling tube 54 .

[0041] Furthermore, a sampling mechanism 4 is provided on the left side of the dust removal mechanism 5 .

[0042] Furthermore, the sampling mechanism 4 includes a sampling bracket 41, which is connected to an external frame. The sampling bracket 41 is hinged to the cylinder body of a horizontal cylinder 42, and the cylinder rod of the horizontal cylinder 42 is hinged to a sampling connecting plate 43. A horizontally arranged sampling spoon 45 is provided on the sampling connecting plate 43, and the sampling spoon 45 is arranged inside the sampling tube 54. The sampling spoon 45 is driven by the horizontal cylinder 42 to move horizontally left and right. A swinging cylinder 44 is also provided on the sampling connecting plate 43, and the swinging cylinder 44 drives the sampling spoon 45 to swing up and down.

[0043] Furthermore, the weighing and solidifying mechanism 6 includes a base frame 61, a roller conveyor 63 is provided above the base frame 61, a horizontally retractable clamping mechanism 64 is provided on the upper side of the roller conveyor 63, a weighing mechanism 66 is provided below the roller conveyor 63, a vertically arranged weighing bracket 65 is provided on the upper end of the weighing mechanism 66, the weighing bracket 65 is located between the conveying rollers of the roller conveyor 63, and the roller conveyor 63 is driven by the lifting cylinder 62 to realize vertical lifting and lowering of multi-point positioning. When the roller conveyor 63 is in the lower position, its conveying roller is lower than the upper end surface of the weighing bracket 65, and when the roller conveyor 63 is above the middle position, its conveying roller is not lower than the upper end surface of the weighing bracket 65. When the lifting cylinder 62 is working, it can also be equipped with an auxiliary positioning mechanism for multi-point positioning.

[0044] See also Figures 1 to 10 , which illustrates the working principle of this embodiment:

[0045] The lifting cylinder 62 drives the roller conveyor 63 to rise vertically to the middle position. After the empty packaging barrel 7 is automatically bagged, it is conveyed to the roller conveyor 63 and stops just below the dust cover 56. The clamping mechanism 64 extends horizontally to clamp the packaging barrel 7. The dust removal lifting cylinder 52 drives the dust cover 56 to descend vertically and cover the outer barrel of the packaging barrel 7.

[0046] PTFE powder is blown into the segmented feeding mechanism 2 through the cyclone separator in the front section. At this time, the first regulating valve 21 is in a closed state, and the second regulating valve 24 and the third regulating valve 27 are in an open state. The PTFE powder falls into the first-stage discharge barrel 22 through the second regulating valve 24 and the third regulating valve 27. As the material level in the first-stage discharge barrel 22 rises, the third regulating valve 27 is adjusted to a small angle to reduce the flow rate of the PTFE powder. When the material level in the first-stage discharge barrel 22 reaches the upper material level detection point 23, the air inlet valve 26 is opened to purge the second regulating valve 24 to clean the powder around the second regulating valve 24 until the second regulating valve 24 is closed. The third regulating valve 27 is adjusted to a large angle, and the PTFE powder continues to fall into the second-stage discharge barrel 25 through the third regulating valve 27.

[0047] After the packaging feeding signal is sent, the lifting cylinder 62 drives the roller conveyor 63 to descend vertically to the low position, so that the bottom of the packaging barrel 7 contacts the weighing bracket 65 and starts weighing, the first regulating valve 21 at the lower end of the first-level unloading barrel 22 is opened, and the unloading door below the feeding box 1 is opened. The PTFE powder in the first-level unloading barrel 22 flows into the coarse feeding pipeline 31 through the feeding box 1. After all the PTFE powder in the first-level unloading barrel 22 is unloaded, the first regulating valve 21 is closed and the second regulating valve 24 is opened, so that the powder stored in the second-level unloading barrel 25 and the third-level unloading barrel 28 falls into the first-level unloading barrel 22, and the above unloading method is repeated until the first-level unloading barrel 22 reaches the upper material level detection point 23, and then the second regulating valve 24 is closed and the first regulating valve 21 is opened again;

[0048] The coarse feeding vibration motor 34 and the fine feeding vibration motor 33 drive the coarse feeding pipeline 31 and the fine feeding pipeline 32 to vibrate respectively, and then convey the PTFE powder forward, and enter the packaging barrel 7 for weighing after passing through the dust removal mechanism 5. At this time, the PTFE powder entering the packaging barrel 7 has four landing points. During the coarse feeding weighing process, the lifting cylinder 62 drives the roller conveyor 63 to rise vertically to the middle position so that the bottom of the packaging barrel 7 falls on the conveying roller. The roller conveyor 63 drives the packaging barrel 7 to repeatedly lift and lower above the middle position to make the powder in the barrel firm. The packaging barrel 7 is lowered again to contact with the weighing bracket 65 and continues to be weighed until the coarse feeding is completed;

[0049] The coarse feeding vibration motor 34 stops, the fine feeding vibration motor 33 drives the fine feeding pipeline 32 to vibrate and convey the powder to complete the fine feeding, the lifting cylinder 62 drives the roller conveyor 63 to rise vertically to the middle position so that the bottom of the packaging barrel 7 falls on the conveying roller, and after the packaging barrel 7 repeatedly lifts above the middle position to make the powder in the barrel firm, the roller conveyor 63 drives the full packaging barrel 7 to the middle position, the clamping mechanism 64 retracts, and the roller conveyor 63 conveys the full packaging barrel 7 to the next process;

[0050] During the coarse and fine feeding process, the dust generated during the packaging process is recovered through the dust removal pipeline 57;

[0051] When sampling is required during the packaging process, the horizontal cylinder 42 drives the sampling spoon 45 to move horizontally to the bottom of the discharge port for sampling and then returns to the sample delivery tube 55. The swing cylinder 44 drives the sampling spoon 45 to swing downward, and the taken PTFE powder falls into the external sampling bottle through the sample delivery tube 55. The sampling frequency can be set according to needs.

Claims

1. A PTFE powder automatic barrel packaging machine, comprising a feed box (1), characterized in that: The upper end of the feeding box (1) is provided with a vertically arranged segmented feeding mechanism (2), the segmented feeding mechanism (2) comprises a first regulating valve (21), the first regulating valve (21) is connected to the upper end of the feeding box (1), the upper end of the first regulating valve (21) is provided with at least two groups of discharge barrels, and the regulating valve is provided between the discharge barrels. The lower end of the feeding box (1) is provided with a horizontally arranged vibrating feeding conveyor (3), the front discharge port of the vibrating feeding conveyor (3) is provided with a dust removal mechanism (5), and a weighing and solidifying mechanism (6) is provided below the dust removal mechanism (5), and the weighing and solidifying mechanism (6) can realize the conveyance of the packaging barrel (7).

2. The PTFE powder automatic barrel packaging machine according to claim 1, characterized in that: The upper end of the first regulating valve (21) is provided with three groups of discharge barrels, which are, from bottom to top, a first-stage discharge barrel (22), a second-stage discharge barrel (25), and a third-stage discharge barrel (28); a second regulating valve (24) is provided between the first-stage discharge barrel (22) and the second-stage discharge barrel (25); a third regulating valve (27) is provided between the second-stage discharge barrel (25) and the third-stage discharge barrel (28); an air intake valve (26) is provided on the second-stage discharge barrel (25); and at least one group of material level detection points (23) is provided on the first-stage discharge barrel (22).

3. The automatic barrel packaging machine for PTFE powder according to claim 1 is characterized in that: The vibrating feeder conveyor (3) comprises a coarse feed pipeline (31), the feed port of the coarse feed pipeline (31) is connected to the lower end of the feed box (1), the coarse feed pipeline (31) is driven by a coarse feed vibration motor (34) to achieve conveying, the middle lower end of the coarse feed pipeline (31) is connected to the feed port of the fine feed pipeline (32), the discharge port of the fine feed pipeline (32) is located below and at the rear of the discharge port of the coarse feed pipeline (31), the horizontal center lines of the coarse feed pipeline (31) and the fine feed pipeline (32) are in the same vertical plane, and the fine feed pipeline (32) is driven by a fine feed vibration motor (33) to achieve conveying.

4. The automatic barrel packaging machine for PTFE powder according to claim 3 is characterized in that: A splitter plate (35) is provided on the horizontal center line of the discharge port of the coarse feed pipeline (31), and the splitter plate (35) divides the discharge port of the coarse feed pipeline (31) into three paths.

5. The automatic barrel packaging machine for PTFE powder according to claim 1 is characterized in that: The dust removal mechanism (5) comprises a support frame (51), the support frame (51) is connected to an external frame, a mounting cylinder (53) is provided at the upper end of the support frame (51), the upper end of the mounting cylinder (53) is connected to the discharge port of the coarse feeding pipeline (31), and the rear end of the mounting cylinder (53) is connected to the discharge port of the fine feeding pipeline (32), a dust removal cover (56) is provided at the lower end of the support frame (51), the inner diameter of the dust removal cover (56) is not less than the outer diameter of the packaging barrel (7), the dust removal cover (56) is driven by a dust removal lifting cylinder (52) to vertically lift, the cylinder body of the dust removal lifting cylinder (52) is connected to the support frame (51), and the dust removal cover (56) is connected to the dust removal pipeline (57).

6. The automatic barrel packaging machine for PTFE powder according to claim 5 is characterized by: The left end of the installation cylinder (53) is connected to a horizontally arranged sampling tube (54), and a vertically arranged sample delivery tube (55) is provided below the middle of the sampling tube (54).

7. The automatic barrel packaging machine for PTFE powder according to claim 1 or 6, characterized in that: A sampling mechanism (4) is provided on the left side of the dust removal mechanism (5).

8. The automatic barrel packaging machine for PTFE powder according to claim 7 is characterized by: The sampling mechanism (4) comprises a sampling bracket (41), the sampling bracket (41) is connected to an external frame, the sampling bracket (41) is hinged to the cylinder body of a horizontal cylinder (42), the cylinder rod of the horizontal cylinder (42) is hinged to a sampling connecting plate (43), a horizontally arranged sampling spoon (45) is provided on the sampling connecting plate (43), the sampling spoon (45) is arranged inside a sampling tube (54), the sampling spoon (45) is driven by the horizontal cylinder (42) to move horizontally left and right, and a swing cylinder (44) is also provided on the sampling connecting plate (43), and the swing cylinder (44) drives the sampling spoon (45) to swing up and down.

9. The automatic barrel packaging machine for PTFE powder according to claim 1, characterized in that: The weighing and solidifying mechanism (6) comprises a base frame (61), a roller conveyor (63) is arranged above the base frame (61), a horizontally retractable clamping mechanism (64) is arranged on the upper side of the roller conveyor (63), a weighing mechanism (66) is arranged below the roller conveyor (63), a vertically arranged weighing bracket (65) is arranged at the upper end of the weighing mechanism (66), the weighing bracket (65) is located between the conveying rollers of the roller conveyor (63), the roller conveyor (63) is driven by a lifting cylinder (62) to realize vertical lifting of multi-point positioning, when the roller conveyor (63) is in the lower position, its conveying roller is lower than the upper end surface of the weighing bracket (65), and when the roller conveyor (63) is above the middle position, its conveying roller is not lower than the upper end surface of the weighing bracket (65).

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