A powder storage and delivery system for a dyeing and finishing apparatus

Abstract

The utility model discloses a powder storage and conveying system for dyeing and finishing equipment, including powder bin, be equipped with the cutting type opening and closing mechanism and first conveying mechanism under the powder bin and be equipped with the turnover car below first conveying mechanism, powder is stored in the powder bin and is transported to the turnover car through the cutting type opening and closing mechanism and first conveying mechanism, and then the powder is conveyed to the external container through the turnover car, the cutting type opening and closing mechanism is equipped between the powder bin and first conveying mechanism, and the first conveying mechanism includes first discharge cylinder, first screw rod and first rotary drive part with screw rod transmission connection, and the first screw rod includes the rod body and pushes the material board, and the rod body is transmission connection with first rotary drive part. Adopt the utility model, can improve the accuracy of conveying capacity, and can effectively prevent the powder bin outlet caking.

Description

Technical Field

[0001] This utility model relates to the field of dyeing and finishing equipment technology, and in particular to a powder storage and conveying system for dyeing and finishing equipment. Background Technology

[0002] In the production process of dyeing and finishing equipment, the precise delivery and quantitative control of powder are crucial to ensuring dyeing uniformity and product quality. Existing powder delivery systems in dyeing and finishing equipment generally adopt a "direct dispensing and dissolving before delivery" technical solution. A typical structure includes a top powder silo, a bottom dispensing pipe, and a downstream dissolving tank. The powder in the silo falls directly into the dispensing pipe by gravity, then enters the dissolving tank where it mixes with water to form a solution, which is then pumped to the target equipment. In this traditional structure, the bottom of the powder silo is simple, often flat or conventionally conical, and the dispensing pipe is directly connected to the bottom of the silo, with opening and closing controlled only by a simple cover or valve. In actual operation, due to the lack of precise metering and adjustment components, it is impossible to accurately control the output: on the one hand, the falling speed of the powder is uncontrollable, which makes it difficult to meet the requirements of the dyeing and finishing process for precise control of the amount of powder used, resulting in poor dyeing uniformity and increased defect rate; on the other hand, the powder used in the dyeing and finishing process is mostly hygroscopic. In the gravity feeding system, the powder accumulates at the powder hopper outlet for a long time, which is easy to come into contact with the outside air and moisture, and then clumps and blocks the feeding channel. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a powder storage and conveying system for dyeing and finishing equipment, which can improve the accuracy of conveying volume and effectively prevent powder caking at the outlet of the silo. To solve the above-mentioned technical problems, this utility model provides a powder storage and conveying system for dyeing and finishing equipment, comprising a powder silo, a cut-off opening and closing mechanism and a first conveying mechanism located below the powder silo, and a turnover cart located below the first conveying mechanism. The powder is stored in the powder silo and conveyed to the turnover cart through the cut-off opening and closing mechanism and the first conveying mechanism, and then the powder is conveyed to an external container through the turnover cart.

[0004] The cut-off opening and closing mechanism is located between the powder silo and the first conveying mechanism. The cut-off opening and closing mechanism includes an opening and closing drive component and a gate plate that is pulverizedly connected to the opening and closing drive component. The opening and closing drive component can drive the gate plate to move at a position that opens or blocks the communication channel between the powder silo and the first conveying mechanism.

[0005] The first conveying mechanism includes a first discharge cylinder, a first spiral rod, and a first rotary drive component that is pulverized to the spiral rod. The first spiral rod is disposed inside the first discharge cylinder and includes a rod body and a pusher plate. The rod body is pulverized to the rotary drive component. The pusher plate protrudes from the surface of the rod body and extends spirally along the axial direction of the rod body. The bottom of the first discharge cylinder is connected to the powder hopper and extends upward at an angle to the top of the turnover cart.

[0006] As an improvement to the above solution, the bottom of the powder hopper is provided with a first upper pipe facing downwards, the bottom of the first discharge cylinder is provided with a first lower pipe facing upwards, a gap is provided between the first upper pipe and the first lower pipe, the gate is provided between the gap between the first upper pipe and the first lower pipe, and the opening and closing drive can drive the gate to move between the position that blocks the communication between the first upper pipe and the first lower pipe and the position that allows the first upper pipe and the first lower pipe to communicate.

[0007] The bottom of the powder silo is also equipped with a weighing mechanism, which is used to detect the weight change of the powder silo.

[0008] As an improvement to the above solution, the powder storage and conveying system for dyeing and finishing equipment further includes a second conveying mechanism. The second conveying mechanism is located between the turnover cart and the external container. The second conveying mechanism includes a second discharge cylinder, a second screw rod, and a second rotary drive component that is pulverizedly connected to the screw rod. The second screw rod is located inside the second discharge cylinder. The bottom of the second discharge cylinder is connected to the gate mechanism of the turnover cart and extends upwards at an angle to the top of the external container.

[0009] As an improvement to the above solution, the bottom of the turnover cart is provided with a second upper pipe, which is arranged downwards, and the bottom of the second discharge cylinder is provided with a second lower pipe, which is arranged upwards. The second gate is arranged between the second upper pipe and the second lower pipe, and the second discharge drive can drive the second gate to move between the position that blocks the connection between the second upper pipe and the second lower pipe and the position that allows the second upper pipe and the second lower pipe to connect.

[0010] As an improvement to the above solution, the upper part of the turnover cart has an open structure, and the first conveying mechanism further includes a discharge pipe. The discharge pipe is vertically arranged at the top of the first discharge cylinder and communicates with the inner cavity of the discharge cylinder. The bottom of the discharge pipe is provided with a lifting drive component and a cover that is pulsatorically connected to the lifting drive component. The shape of the cover corresponds to the cross-sectional shape of the upper part of the turnover cart, and the lifting drive component can drive the cover to cover the upper part of the turnover cart.

[0011] As an improvement to the above solution, the powder storage and conveying system for dyeing and finishing equipment further includes an auxiliary conveying mechanism, which includes an air blower and a vibrator. The air blower is connected to the bottom of the powder silo and the turnover cart, respectively, and the vibrator is located on the bottom side wall of the powder silo and the turnover cart, respectively.

[0012] As an improvement to the above solution, the upper part of the powder silo is a feeding section, which is provided with a side feeding port and a side door. The side feeding port is located on the side of the feeding section, and the side door is symmetrically hinged to both sides of the side feeding port. The powder storage and conveying system for dyeing and finishing equipment also includes a feeding mechanism, which includes a telescopic drive and a connecting block. The fixed end of the telescopic drive is located at the top of the powder silo, the movable end of the telescopic drive is hinged to one end of the connecting block, and the other end of the connecting block is fixed to the side door.

[0013] The powder hopper is also equipped with a filter screen at its upper part, and the height of the filter screen is lower than the height of the side door.

[0014] As an improvement to the above solution, the top of the powder silo is provided with a top plate, and a feeding channel is provided in the top plate near the side feed port. The length direction of the feeding channel is parallel to the movement direction of the feeding chain. Sealing brushes are provided on both sides of the feeding channel. There are two sealing brushes, which are arranged opposite each other on both sides of the feeding channel. The outer edges of the two sealing brushes flexibly abut against each other.

[0015] As an improvement to the above solution, the powder storage and conveying system for dyeing and finishing equipment further includes a suspension mechanism. The suspension mechanism includes a hanger, a movable seat, and a suspension rope. The top of the hanger is provided with a top movable beam, which is located above the top plate. The movable seat can move on the top movable beam. One end of the suspension rope is fixed to the movable seat, and the other end can be connected to the bagged powder.

[0016] As an improvement to the above solution, a weighing mechanism is also included, which is located on the ground and flush with the ground, and the transfer vehicle can move onto the weighing mechanism.

[0017] Implementing this utility model has the following beneficial effects: This utility model relates to a powder storage and conveying system for dyeing and finishing equipment. The system comprises a powder silo, a cut-off opening and closing mechanism, a first conveying mechanism, and a transfer cart. The powder silo stores powder, while the cut-off opening and closing mechanism is located between the silo and the first conveying mechanism. The opening and closing drive can move a gate to open or block the communication channel between the silo and the conveying mechanism, thus enabling discharge and stopping of discharge. When discharge is not needed or has been completed, the outlet of the powder silo can be closed to prevent moisture from entering and causing clumping. The first conveying mechanism uses a first rotary drive to drive a first auger to rotate upwards at an inclined angle, enabling low-speed continuous pushing and keeping the powder delivery volume within a low error range. This allows for batch and quantitative powder delivery, fully meeting the requirements of refined production in dyeing and finishing processes. Therefore, this powder storage and conveying system for dyeing and finishing equipment improves the accuracy of the delivery volume and effectively prevents clumping at the powder silo outlet. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the powder storage and conveying system for dyeing and finishing equipment according to this utility model; Figure 2 This is a structural schematic diagram of the powder silo, the first conveying mechanism, and the cut-off opening and closing mechanism of this utility model; Figure 3 yes Figure 2 A magnified view of part A in the image; Figure 4 This is a schematic diagram of the structure of the turnover vehicle and the second conveying mechanism of this utility model; Figure 5 yes Figure 4 A magnified view of part B in the image; Figure 6 This is a schematic diagram of the feeding mechanism of this utility model; Figure 7 This is a structural schematic diagram of the suspension mechanism of this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0020] See Figure 1 and Figure 2This utility model discloses a powder storage and conveying system for dyeing and finishing equipment, including a powder silo 1, a cut-off opening and closing mechanism 3 and a first conveying mechanism 4 disposed below the powder silo 1, and a transfer cart 2 disposed below the first conveying mechanism 4. Powder is stored in the powder silo 1 and conveyed to the transfer cart 2 via the cut-off opening and closing mechanism 3 and the first conveying mechanism 4, and then conveyed to an external container via a gate mechanism and the conveying mechanism of the transfer cart 2. When powder needs to be conveyed, the transfer cart 2 first moves to below the first conveying mechanism 4, and then the cut-off opening and closing mechanism 3 opens, allowing the powder to be transferred from the powder silo 1 to the transfer cart 2 via the first conveying mechanism 4. The gate mechanism can close the outlet of the transfer cart 2 to prevent clumping at the bottom of the transfer cart 2 before feeding into the external container.

[0021] The cut-off opening and closing mechanism 3 is located between the powder silo 1 and the first conveying mechanism 4. The cut-off opening and closing mechanism 3 includes an opening and closing drive component 31 and a gate 32 pulverizedly connected to the opening and closing drive component 31. The opening and closing drive component 31 can drive the gate 32 to move between opening or blocking the communication channel between the powder silo 1 and the first conveying mechanism 4. When powder needs to be conveyed, the opening and closing drive component 31 (such as a cylinder or electric push rod) can drive the gate 32 to move between blocking or connecting the channel between the powder silo 1 and the first conveying mechanism 4. When the gate 32 moves to the position of opening the channel, the powder can fall from the powder silo 1 into the first conveying mechanism 4 below, while closing the channel completely blocks the flow of powder.

[0022] The first conveying mechanism 4 includes a first discharge cylinder 41, a first spiral rod 42, and a first rotary drive 43 driven by the spiral rod. The first spiral rod 42 is disposed inside the first discharge cylinder 41 and includes a rod body 421 and a pusher plate 422. The rod body 421 is driven by the first rotary drive 43. The pusher plate 422 protrudes from the surface of the rod body 421 and extends spirally along the axial direction of the rod body 421. Its spiral helix angle is designed in coordination with the inclination angle of the first discharge cylinder 41. When the first rotary drive 43 drives the rod body 421 to rotate, the spiral surface of the pusher plate 422 can push the powder upward along the inclination direction of the first discharge cylinder 41. The bottom of the first discharge cylinder 41 is connected to the powder hopper 1 and extends upward at an inclination to the top of the transfer cart 2. The first discharge cylinder 41 is inclined, and this inclined structure works in conjunction with the internal first screw rod 42: when the first rotary drive 43 drives the first screw rod 42 to rotate, the powder moves upward along the inclined discharge cylinder under the push of the screw rod. Compared with the traditional vertical discharge method, the inclined conveying makes the contact time between the powder and the screw rod longer and the pushing process more stable. The low-speed continuous operation of the screw rod, combined with the start-stop control of the cut-off opening and closing mechanism 3, can keep the error of the powder conveying amount within a low range.

[0023] The beneficial effects of this utility model embodiment are as follows: This utility model embodiment of a powder storage and conveying system for dyeing and finishing equipment includes a powder silo, a cut-off opening and closing mechanism, a first conveying mechanism, and a transfer cart. The powder silo stores powder, while the cut-off opening and closing mechanism is located between the powder silo and the first conveying mechanism. Through an opening and closing drive, the gate can be moved to open or block the communication channel between the powder silo and the first conveying mechanism, achieving the functions of discharging and stopping discharging. When discharging is not needed or has been completed, the outlet of the powder silo can be closed to prevent moisture from entering and causing clumping. The first conveying mechanism uses a first rotary drive to drive a first auger to rotate upwards at an inclined angle for discharging, enabling low-speed continuous pushing and keeping the powder conveying volume within a low error range. This allows for batch and quantitative conveying of powder, fully meeting the requirements of refined production in dyeing and finishing processes. Therefore, this utility model's powder storage and conveying system for dyeing and finishing equipment can improve the accuracy of conveying volume and effectively prevent clumping at the powder silo outlet.

[0024] See Figure 3The powder silo 1 has a first upper pipe 11 at its bottom, with the opening of the first upper pipe 11 facing downwards. The first discharge cylinder 41 has a first lower pipe 411 at its bottom, with the opening of the first lower pipe 411 facing upwards. A gap exists between the first upper pipe 11 and the first lower pipe 411. A gate 32 is located between the gap between the first upper pipe 11 and the first lower pipe 411. The opening and closing drive 31 can drive the gate 32 to move between a position that blocks the connection between the first upper pipe 11 and the first lower pipe 411 and a position that allows the first upper pipe 11 and the first lower pipe 411 to connect. When the opening and closing drive 31 drives the gate 32 to the position that blocks the connection between the first upper pipe 11 and the first lower pipe 411, the powder conveying path can be completely cut off, achieving precise start and stop control of the powder conveying. When the gate 32 moves to the position that allows the two pipes to connect, the powder can flow smoothly from the powder silo 1 into the first conveying mechanism 4. Compared to traditional valve structures, the gate 32 has a tighter contact surface with the pipeline, which can effectively prevent powder from accumulating on the edge of the gate 32, avoid sealing problems caused by residual powder, and further improve the accuracy of conveying control.

[0025] In addition, a weighing mechanism is provided at the bottom of the powder silo 1, which is used to detect the weight change of the powder silo 1. The weighing mechanism is located between the powder silo 1 and the fixing frame that fixes the powder silo. By detecting the weight change of the powder silo 1, the amount of powder conveyed in the current batch can be determined, thereby controlling the discharge rate of the first discharge mechanism 4. Furthermore, it can also determine whether the material in the powder silo meets the next discharge requirement and make a replenishment call or alarm in advance, and can also make a replenishment call or alarm based on the minimum quantity.

[0026] See Figure 4The powder storage and conveying system for dyeing and finishing equipment further includes a second conveying mechanism 6, which is located between the turnover cart 2 and the external container. The second conveying mechanism 6 includes a second discharge cylinder 61, a second screw rod 62, and a second rotary drive component 63 connected to the screw rod. The second screw rod 62 is located inside the second discharge cylinder 61. The second discharge cylinder 61 also adopts an inclined structure, with its bottom connected to the gate mechanism of the turnover cart 2 and extending upwards above the external container. When the second rotary drive component 63 drives the second screw rod 62 to rotate, the powder in the turnover cart 2 can be pushed upwards along the inclined second discharge cylinder 61 to the external container. Combined with the first conveying mechanism 4, the stability and controllability of powder conveying are further improved through two inclined screw conveying operations. Furthermore, the inclined structure utilizes the mechanical pushing of the screw rod to replace traditional gravity feeding, effectively avoiding the problem of powder accumulation and clumping due to its own weight, ensuring the continuity of the conveying process. Especially when handling highly hygroscopic dye powders, this fully enclosed spiral conveying method can reduce the contact between the powder and the outside air, reduce the risk of clumping, and extend the equipment maintenance cycle.

[0027] See Figure 5 The bottom of the turnover cart 2 is provided with a second upper pipe 21, which is arranged downwards. The bottom of the second discharge cylinder 61 is provided with a second lower pipe 611, which is arranged upwards. The second gate 64 is disposed between the second upper pipe 21 and the second lower pipe 611. The second discharge drive 65 can drive the second gate 64 to move between a position that blocks the connection between the second upper pipe 21 and the second lower pipe 611 and a position that allows the second upper pipe 21 and the second lower pipe 611 to connect. When the second discharge drive 65 drives the second gate 64 to move to the position that blocks the connection between the second upper pipe 21 and the second lower pipe 611, the material channel between the turnover cart 2 and the second conveying mechanism 6 can be completely cut off, preventing the powder from accidentally flowing out when it is not needed for conveying. When the second gate 64 moves to the position that allows the second upper pipe 21 and the second lower pipe 611 to connect, the powder can fall from the turnover cart 2 into the second discharge cylinder 61.

[0028] The upper part of the turnover cart 2 has an open structure. The first conveying mechanism 4 also includes a discharge pipe 44, which is vertically installed at the top of the first discharge cylinder 41 and communicates with the inner cavity of the discharge cylinder. The bottom of the discharge pipe 44 is provided with a lifting drive component 45 and a cover 46 that is pulsatorically connected to the lifting drive component 45. The shape of the cover 46 corresponds to the cross-sectional shape of the upper part of the turnover cart 2. The lifting drive component 45 can drive the cover 46 to cover the upper part of the turnover cart 2, forming a sealed fit. When powder needs to be conveyed to the turnover cart 2, the lifting drive component 45 drives the cover 46 to descend, so that the edge of the cover 46 fits tightly against the opening at the top of the turnover cart 2, forming a fully enclosed conveying space. After conveying, the cover 46 rises and detaches from the turnover cart 2. Compared with the open discharge port in the prior art, this sealed design can reduce dust overflow by more than 80%, avoiding powder waste and workshop environmental pollution. Meanwhile, the sealing fit between the cover 46 and the turnover cart 2 creates a stable conveying air pressure environment inside the first discharge cylinder 41, preventing fluctuations in the amount of powder conveyed due to external airflow interference. Combined with the quantitative pushing of the screw rod, the material receiving error of the turnover cart 2 can be controlled within a low range, meeting the precision requirements of the dyeing and finishing process for micro-batch preparation.

[0029] See Figure 1 The powder storage and conveying system for dyeing and finishing equipment further includes an auxiliary conveying mechanism 7, which comprises an air blower 71 and a vibrator 72. The air blower 71 is connected to the bottom of both the powder silo 1 and the turnover cart 2, and the vibrator 72 is located on the bottom sidewall of both the powder silo 1 and the turnover cart 2. When the system detects an abnormal powder conveying volume, it automatically activates the vibrator 72 and / or the air blower 71: the vibrator 72 uses high-frequency vibration to break up powder clumps at the bottom of the silo, and the air blower 71 introduces compressed air to push the loosened powder to the discharge port. The auxiliary conveying mechanism 7 can improve the efficiency of clearing blockages, and is especially suitable for hygroscopic powders, effectively preventing powder caking at the bottom of the silo and improving discharge efficiency.

[0030] See Figure 1 and Figure 6The upper part of the powder silo 1 is a feeding section 12, which is provided with a side feeding port 121 and a side door 122. The side feeding port 121 is located on the side of the feeding section 12, and the side door 122 is symmetrically hinged to both sides of the side feeding port 121. The powder silo 1 can be replenished using the side feeding port 121, allowing bagged powder to enter the powder silo 1 and be discharged from inside. The powder storage and conveying system for dyeing and finishing equipment also includes a feeding mechanism 8, which includes a telescopic drive component and a connecting block. The fixed end of the telescopic drive component is located at the top of the powder silo 1, the movable end of the telescopic drive component is hinged to one end of the connecting block, and the other end of the connecting block is fixed to the side door 122. When powder needs to be replenished, the telescopic drive extends, causing the side doors 122 on both sides to flip outwards and open via the connecting block, forming a feeding channel facing the side feed inlet 121. Operators can then directly place bagged powder into the powder hopper 1 through the side feed inlet 121. After replenishment, the outer bag is removed, the telescopic drive retracts, causing the side doors 122 to flip inwards and close, ensuring a tight seal between the edge of the side door 122 and the side of the side feed inlet 121. The sealing structure formed by the closed side door 122 and the side feed inlet 121 effectively prevents the powder in the powder hopper 1 from becoming damp and clumping, reduces dust spillage, and prevents external moisture from entering and affecting powder quality.

[0031] The powder hopper 1 is equipped with a filter screen at its upper part. The height of the filter screen is lower than the height of the side door 122. The filter screen can filter the powder entering the powder hopper 1, preventing large clumps of solid material from entering the powder hopper 1 and avoiding blockages during subsequent discharge. The fact that the filter screen is lower than the side door 122 ensures that the powder can enter the side door 122 smoothly.

[0032] The powder silo 1 has a top plate 13, and a feeding channel 131 is provided in the top plate 13 near the side feed port 121. The length direction of the feeding channel 131 is parallel to the movement direction of the feeding chain, allowing the bagged powder to smoothly pass through the feeding channel 131 into the powder silo 1 in a straight line. Two sealing brushes 132 are provided on both sides of the feeding channel 131, and are arranged opposite each other. The outer edges of the two sealing brushes 132 flexibly abut against each other. The sealing brushes 132 ensure that when the bagged powder passes through the feeding channel 131, they can closely adhere to the surface of the suspension rope 53, forming a dynamic sealing structure. This structure reduces dust leakage, and the flexible abutment method ensures a sealing effect without obstructing the conveying of the bagged powder, making the feeding process smoother and more efficient.

[0033] The powder storage and conveying system for dyeing and finishing equipment also includes a suspension mechanism 5. The suspension mechanism 5 includes a hanger 51, a movable seat 52, and a suspension rope 53. A top movable beam 511 is provided at the top of the hanger 51, located above the top plate 13, providing a track for the movable seat 52. The movable seat 52 can move on the top movable beam 511. One end of the suspension rope 53 is fixed to the movable seat 52, and the other end can be connected to the bagged powder. In actual operation, the operator can hang the bagged powder on the lower end of the suspension rope 53 and, by controlling the movement of the movable seat 52 on the top movable beam 511, accurately lift the bagged powder to the side of the side inlet 121. Then, by opening the side door 122, the feeding chain enters the feeding channel 131, thereby sending the bagged powder into the powder silo 1.

[0034] The powder storage and conveying system for dyeing and finishing equipment also includes a weighing mechanism 9, which is located on the ground and flush with it. The transfer cart 2 can move onto the weighing mechanism 9. The transfer cart 2 can be moved above the weighing mechanism 9 and precisely positioned via rollers or a guide rail system at its bottom.

[0035] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A powder storage and conveying system for dyeing and finishing equipment, characterized in that, It includes a powder silo, a cut-off opening and closing mechanism and a first conveying mechanism located below the powder silo, and a turnover vehicle located below the first conveying mechanism. The powder is stored in the powder silo and conveyed to the turnover vehicle through the cut-off opening and closing mechanism and the first conveying mechanism, and then the powder is conveyed to an external container through the turnover vehicle. The cut-off opening and closing mechanism is located between the powder silo and the first conveying mechanism. The cut-off opening and closing mechanism includes an opening and closing drive component and a gate plate that is pulverizedly connected to the opening and closing drive component. The opening and closing drive component can drive the gate plate to move at a position that opens or blocks the communication channel between the powder silo and the first conveying mechanism. The first conveying mechanism includes a first discharge cylinder, a first spiral rod, and a first rotary drive component that is pulverized to the spiral rod. The first spiral rod is disposed inside the first discharge cylinder and includes a rod body and a pusher plate. The rod body is pulverized to the first rotary drive component. The pusher plate protrudes from the surface of the rod body and extends spirally along the axial direction of the rod body. The bottom of the first discharge cylinder is connected to the powder hopper and extends upward at an angle to the top of the turnover cart.

2. The powder storage and conveying system for dyeing and finishing equipment according to claim 1, characterized in that, The powder hopper is provided with a first upper pipe at the bottom, which is arranged downwards. The first discharge cylinder is provided with a first lower pipe at the bottom, which is arranged upwards. There is a gap between the first upper pipe and the first lower pipe. The gate is arranged between the gap between the first upper pipe and the first lower pipe. The opening and closing drive can drive the gate to move between the position that blocks the communication between the first upper pipe and the first lower pipe and the position that allows the first upper pipe and the first lower pipe to communicate. The bottom of the powder silo is also equipped with a weighing mechanism, which is used to detect the weight change of the powder silo.

3. The powder storage and conveying system for dyeing and finishing equipment according to claim 1, characterized in that, The powder storage and conveying system for dyeing and finishing equipment further includes a second conveying mechanism, which is located between the turnover cart and the external container. The second conveying mechanism includes a second discharge cylinder, a second screw rod, and a second rotary drive component that is pulverizedly connected to the screw rod. The second screw rod is located inside the second discharge cylinder, and the bottom of the second discharge cylinder is connected to the gate mechanism of the turnover cart and extends upwards at an angle to the top of the external container.

4. The powder storage and conveying system for dyeing and finishing equipment according to claim 3, characterized in that, The bottom of the turnover cart is provided with a second upper tube, which is set downwards. The bottom of the second discharge cylinder is provided with a second lower tube, which is set upwards. A second gate is set between the second upper tube and the second lower tube. The second discharge drive can drive the second gate to move between a position that blocks the connection between the second upper tube and the second lower tube and a position that allows the second upper tube and the second lower tube to connect.

5. The powder storage and conveying system for dyeing and finishing equipment according to claim 1, characterized in that, The upper part of the turnover cart has an open structure. The first conveying mechanism also includes a discharge pipe. The discharge pipe is vertically arranged at the top of the first discharge cylinder and communicates with the inner cavity of the discharge cylinder. The bottom of the discharge pipe is provided with a lifting drive and a cover that is connected to the lifting drive. The shape of the cover corresponds to the cross-sectional shape of the upper part of the turnover cart. The lifting drive can drive the cover to cover the upper part of the turnover cart.

6. The powder storage and conveying system for dyeing and finishing equipment according to claim 1, characterized in that, The powder storage and conveying system for dyeing and finishing equipment also includes an auxiliary conveying mechanism, which includes an air blower and a vibrator. The air blower is connected to the bottom of the powder silo and the turnover cart, respectively, and the vibrator is located on the bottom side wall of the powder silo and the turnover cart, respectively.

7. The powder storage and conveying system for dyeing and finishing equipment according to claim 1, characterized in that, The upper part of the powder silo is the feeding section, which is provided with a side feeding port and a side door. The side feeding port is located on the side of the feeding section, and the side door is symmetrically hinged to both sides of the side feeding port. The powder storage and conveying system for dyeing and finishing equipment also includes a feeding mechanism, which includes a telescopic drive and a connecting block. The fixed end of the telescopic drive is located at the top of the powder silo, the movable end of the telescopic drive is hinged to one end of the connecting block, and the other end of the connecting block is fixed to the side door. The powder hopper is also equipped with a filter screen at its upper part, and the height of the filter screen is lower than the height of the side door.

8. The powder storage and conveying system for dyeing and finishing equipment according to claim 7, characterized in that, The powder silo has a top plate, and a feeding channel is provided in the top plate near the side feed port. The length direction of the feeding channel is parallel to the movement direction of the feeding chain. Sealing brushes are provided on both sides of the feeding channel. There are two sealing brushes, which are arranged opposite each other on both sides of the feeding channel. The outer edges of the two sealing brushes flexibly abut against each other.

9. The powder storage and conveying system for dyeing and finishing equipment according to claim 8, characterized in that, The powder storage and conveying system for dyeing and finishing equipment also includes a suspension mechanism, which includes a hanger, a movable seat, and a suspension rope. The top of the hanger is provided with a top movable beam, which is located above the top plate. The movable seat can move on the top movable beam. One end of the suspension rope is fixed to the movable seat, and the other end can be connected to the bagged powder.

10. The powder storage and conveying system for dyeing and finishing equipment according to claim 1, characterized in that, The powder storage and conveying system for dyeing and finishing equipment also includes a weighing mechanism, which is located on the ground and flush with the ground, and the transfer cart can be moved onto the weighing mechanism.

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