A cotton feeding machine

Abstract

The present application relates to a kind of cotton feeding machines, including lower cotton box, upper cotton box, cotton outlet device, feeding device and cotton inlet device, cotton inlet device includes air inlet fan, tee, first cotton inlet pipeline, second cotton inlet pipeline and air supplement fan, tee has first interface, second interface and third interface, the air outlet of air inlet fan is connected with the first interface of tee and is communicated, the first end of first cotton inlet pipeline, the first end of second cotton inlet pipeline are respectively connected with the second interface, third interface of tee and are communicated;Tee is equipped with air supplement port, air supplement port is between second interface and third interface and is directly opposite first interface;The air outlet of air supplement fan is connected with air supplement port and is communicated;The second end of first cotton inlet pipeline has first lower cotton section, the second end of second cotton inlet pipeline has second lower cotton section, first lower cotton section, second lower cotton section staggered setting one before and one after.This kind of cotton feeding machine can enter raw material evenly spread and lay in upper cotton box, form uniform cotton storage layer.

Description

Technical Field

[0001] This invention relates to nonwoven fabric production equipment, specifically to a cotton feeding machine. Background Technology

[0002] The pneumatic cotton feeder is a key piece of equipment connecting the cotton opener and the carding machine. It evenly feeds the raw cotton or chemical fiber that has been opened, cleaned and mixed by the cotton opener to the carding machine. It is suitable for producing raw cotton of various grades.

[0003] Currently, the fiber raw materials entering the pneumatic cotton feeder are generally diffused and evenly spread into the inner cavity of the upper cotton box by a fan through the cotton distribution head of the pneumatic cotton feeder. The cotton feeding method is mainly divided into two types: front trumpet type and single-sided type. However, both have certain defects: the front trumpet type relies on the diffusion airflow to spread the fibers. Due to the uneven energy attenuation of the fluid during the diffusion process, it is easy to cause the kinetic energy in the center of the cotton flow to be higher and the kinetic energy on both sides to be weaker, forming an uneven cotton layer with a high center and low sides, which affects the product quality. On the other hand, the single-sided cotton feeding method is because the fibers are input from a single direction. On the side away from the air inlet, the cotton is easy to accumulate due to the weakening of the airflow. On the side near the air inlet, there is a dead zone of fluid, forming a cotton-deficient or cotton-free area. This makes the lateral cotton capacity of the cotton box significantly different, which makes the finished products (such as non-woven fabrics) prone to uneven thickness.

[0004] In addition, to ensure the lateral uniformity of the cotton output from the lower cotton box, an integrated adjustment device is usually installed at the bottom of the inner cavity of the lower cotton box. This device typically has a single adjustable plate that can move back and forth at the cotton box outlet. By manually or by motor drive, the position of the adjustable plate in the front-back direction is changed, thereby adjusting the average thickness of the cotton layer by changing the overall opening of the lower cotton box channel. However, this integrated adjustment device can only change the overall output of the lower cotton box and cannot compensate for local unevenness in the width direction caused by raw material characteristics, airflow distribution, mechanical installation, etc. It has a limited effect on improving the lateral uniformity of the output cotton. Moreover, for modern high-speed cotton feeders with a wide width (e.g., more than 2 meters), this integrated adjustment device cannot achieve precise compensation for slight weight fluctuations in the width direction, making it difficult to meet the stringent requirements for raw material uniformity in the production of high-end nonwoven products (such as nonwoven fabrics). Summary of the Invention

[0005] The technical problem to be solved by this invention is to provide a cotton feeder that can evenly spread and layer the incoming raw material in the upper cotton box, forming a uniform cotton storage layer and preventing uneven accumulation, insufficient cotton, or no cotton in the upper cotton box. The technical solution adopted is as follows: A cotton feeding machine includes a lower cotton box, an upper cotton box, and a cotton discharging device. The lower cotton box has a vertically oriented lower cotton box channel, and a feeding device is arranged above the lower cotton box channel. The upper cotton box is located above the lower cotton box, and the cotton outlet at the bottom of the upper cotton box is connected to the cotton inlet at the top of the lower cotton box. The cotton discharging device is located below the lower cotton box channel. The machine is characterized in that it further includes a cotton inlet device, which is located above the upper cotton box. The cotton inlet device includes an air inlet fan, a three-way pipe, a first cotton inlet pipe, a second cotton inlet pipe, and a supplementary air fan. The three-way pipe has a first interface, a second interface, and a third interface. The air outlet of the air inlet fan is connected to the first interface. The first end of the first cotton inlet pipe and the second end of the second cotton inlet pipe... One end is connected to the second interface and the third interface respectively; the three-way pipe is provided with an air supply port, which is located between the second interface and the third interface and directly opposite the first interface; the air supply fan is installed on the outside of the three-way pipe, and the air outlet of the air supply fan is connected to the air supply port; the second end of the first cotton inlet pipe has a first lower cotton section extending from left to right, and the second end of the second cotton inlet pipe has a second lower cotton section extending from right to left. The first lower cotton section and the second lower cotton section are staggered one after the other. The bottom of the first lower cotton section has a first strip opening extending in the left and right direction, and the bottom of the second lower cotton section has a second strip opening extending in the left and right direction. Both the first strip opening and the second strip opening are connected to the top of the cavity of the upper cotton box.

[0006] During operation, raw materials (such as raw cotton or chemical fibers) are drawn into the T-connector through the first inlet by the intake fan. Simultaneously, the supplementary air fan blows air towards the first inlet through the supplementary air inlet, causing the raw materials entering the T-connector to be diverted: some raw materials enter the first cotton inlet pipe and are conveyed to the first lower cotton section, falling into the upper cotton box cavity through the first strip opening; the other part of the raw materials enters the second cotton inlet pipe and is conveyed to the second lower cotton section, falling into the upper cotton box cavity through the second strip opening. Because the first lower cotton section and the second... The lower cotton sections extend in opposite directions and are staggered one after the other. This allows the raw materials entering the cotton feeder to be fed into the upper cotton box in two independent paths, where they converge. This ensures that the cotton is evenly spread and layered in the upper cotton box, and the cotton amounts from the two cotton feed heads are symmetrical and complementary, thus preventing uneven accumulation, insufficient cotton, or no cotton in the upper cotton box. This forms a uniform cotton storage layer in the upper cotton box, which is then transported by the feeding device to the lower cotton box channel. After exiting from the lower end of the lower cotton box channel, it is transported by the cotton discharge device to the subsequent process.

[0007] As a preferred embodiment of the present invention, the top of the first lower cotton section gradually slopes downward from left to right, and the top of the second lower cotton section gradually slopes downward from right to left. This allows the tops of the first and second lower cotton sections to tilt and press down on the arriving raw material, ensuring it falls smoothly into the cavity of the upper cotton box.

[0008] As a preferred embodiment of the present invention, both the first cotton inlet pipe and the second cotton inlet pipe include a first straight connector, an arc connector, a second straight connector, and an oblique connector connected in sequence; one end of the first straight connector of the first cotton inlet pipe is connected to the second interface, and the oblique connector of the first cotton inlet pipe constitutes the first lower cotton section; one end of the first straight connector of the second cotton inlet pipe is connected to the third interface, and the oblique connector of the second cotton inlet pipe constitutes the second lower cotton section. During operation, raw materials (such as raw cotton or chemical fibers) are drawn into the inner cavity of the three-way pipe through the first interface by the intake fan, and then diverted by the supplementary air fan. Part of the raw material is transported sequentially through the first straight connector, the arc connector and the second straight connector of the first cotton inlet pipe to the inclined connector that constitutes the first lower cotton section, and falls into the cavity of the upper cotton box from the first strip opening. The other part of the raw material is transported sequentially through the first straight connector, the arc connector and the second straight connector of the second cotton inlet pipe to the inclined connector that constitutes the second lower cotton section, and falls into the cavity of the upper cotton box from the second strip opening.

[0009] As a further preferred embodiment of the present invention, the first straight connector, the arc connector, the second straight connector, and the oblique connector are all flat.

[0010] In a preferred embodiment of the present invention, at least one transparent substrate is detachably installed on the sidewalls of the first and second cotton inlet pipes. Specifically, the transparent substrate can be a transparent plastic plate or a transparent glass plate. Workers can observe the material transport status (such as whether it is blocked) inside the first and second cotton inlet pipes through the transparent substrate, and can open the corresponding transparent substrate for cleaning when a blockage occurs, making the operation convenient.

[0011] As a preferred embodiment of the present invention, the left and right side plates of the upper cotton box are provided with multiple filter holes, each of which communicates with the inner cavity of the upper cotton box. The cotton feeding machine also includes two dust collection hoods, which are respectively installed on the left and right sides of the upper cotton box, and each dust collection hood is provided with a suction connector. In use, the suction connector can be connected to the air intake of the dust filter through the air supply pipe and the suction fan. The raw materials entering the upper cotton box will generate scattered cotton fibers, dust and other impurities. The suction fan can create a negative pressure inside the two dust collection hoods through the air supply pipe and the suction connector, and collect the cotton fibers, dust and other impurities in the upper cotton box through each filter hole. Then, the impurities are sequentially conveyed to the dust filter through the first air supply pipe and the suction fan. This can prevent cotton fibers, short fibers and dust and other substances from spreading to the surrounding workshop environment, thereby improving the workshop environment.

[0012] In a preferred embodiment of the present invention, the feeding device includes a beater, a drive motor, and two feeding rollers. The drive motor is mounted on the lower cotton box. The beater is rotatably mounted in the inner cavity of the lower cotton box and is connected to the drive motor for transmission, located above the upper opening of the lower cotton box channel. The two feeding rollers are arranged side by side above the beater, pressing against each other and rotating relative to each other. During operation, the raw material exits from the cotton outlet at the bottom of the lower cotton box and enters between the two feeding rollers. The two feeding rollers press against each other and rotate relative to each other, conveying the material toward the beater. The beater, driven by the drive motor, rotates continuously, feeding the raw material evenly into the lower cotton box channel.

[0013] As a preferred embodiment of the present invention, the cotton feeding machine further includes a lower cotton box channel adjustment device. The lower cotton box channel adjustment device includes a support frame, a fixed plate, multiple adjustment plates, and multiple position adjustment units. The support frame is installed in the bottom of the inner cavity of the lower cotton box. The fixed plate is installed on the support frame and is arranged vertically. Each adjustment plate is arranged sequentially from left to right on the front side of the fixed plate, and the lower cotton box channel is formed between the rear side of each adjustment plate and the front side of the fixed plate. Each position adjustment unit is installed on the support frame, and each position adjustment unit can adjust the position of the corresponding adjustment plate in the front-rear direction. Specifically, approximately eight independently adjustable adjustment plates per meter can be provided at the bottom of the inner cavity of the lower cotton box. The rear side of each adjusting plate and the front side of the fixed plate form a lower cotton box channel for outputting cotton. The position of the corresponding adjusting plate in the front-back direction can be adjusted by each position adjusting unit, thereby making precise local adjustments to the lower cotton box channel in the width direction. This achieves refined and multi-point independent volume control of the lower cotton box channel, thereby improving the lateral uniformity and quantitative accuracy of the output cotton, which can meet the stringent requirements of high-end textile production for the uniformity of raw materials.

[0014] As a further preferred embodiment of the present invention, the adjusting plate is mounted on the support frame via a front and rear guide mechanism; the position adjusting unit includes an adjusting seat, an adjusting screw, and an adjusting handwheel. The adjusting seat is fixedly mounted on the support frame and located in front of the adjusting plate. The adjusting seat has a front-to-back oriented adjusting screw hole. The middle part of the adjusting screw is located in the adjusting screw hole, and the rear end of the adjusting screw is rotatably connected to the adjusting plate. The adjusting handwheel is fixedly mounted on the front end of the adjusting screw. When the position adjusting unit needs to adjust the front and rear position of the adjusting plate, the adjusting screw can be rotated by turning the adjusting handwheel. Utilizing the meshing relationship between the adjusting screw and the adjusting screw hole on the adjusting seat, the adjusting screw is driven to move forward or backward along the adjusting screw hole, and under the guidance of the front and rear guide mechanism, the adjusting plate is moved forward or backward a certain distance.

[0015] As a further preferred embodiment of the present invention, the rear end of the adjusting screw is rotatably connected to the adjusting plate via a bearing; the rear end of the adjusting screw is connected to the inner ring of the bearing, and the outer ring of the bearing is connected to the front side of the adjusting plate. Thus, a bearing can be used to achieve a rotatable connection between the rear end of the adjusting screw and the adjusting plate.

[0016] As a further preferred embodiment of the present invention, the front and rear guiding mechanism includes a guide plate, multiple guide bolts, and multiple fixing nuts. The guide plate is mounted on the support frame and has multiple strip-shaped guide holes arranged sequentially from left to right, each extending in the front-rear direction. Each adjusting plate is disposed on the lower side of the guide plate, and each adjusting plate has a top plate at its upper end. The top plate has vertically oriented connecting through holes. The number of connecting through holes, guide bolts, and strip-shaped guide holes are the same and correspond one-to-one. The screw of each guide bolt is located in the corresponding strip-shaped guide hole and connecting through hole, and each fixing nut is installed on the screw of the corresponding guide bolt. The guide plate and top plate are located between the head of the guide bolt and the fixing nut. With this structure, the guide bolts mounted on the corresponding adjusting plates can be guided through the strip-shaped guide holes on the guide plate, thereby guiding the adjusting plates in the front-rear direction.

[0017] As a further preferred embodiment of the present invention, the support frame has multiple guide channels extending in the front-to-back direction. The number of guide channels is the same as the number of adjusting plates, and they correspond one-to-one. The adjusting plates are located in the corresponding guide channels. Specifically, the guide channels can be composed of two partition plates arranged side by side, with the adjusting plates positioned between the corresponding two partition plates, and the two side edges of the adjusting plates contacting and engaging with the two partition plates. Each guide channel can guide the corresponding adjusting plate, enabling it to move smoothly forward or backward.

[0018] In a preferred embodiment of the present invention, the cotton discharge device includes a conveyor belt and two cotton discharge rollers. The conveyor belt is disposed on the lower side of the lower cotton box, and the two cotton discharge rollers are arranged side by side and rotate relative to each other, positioned between the conveying surface of the conveyor belt and the lower end of the lower cotton box channel. During operation, the two cotton discharge rollers press against each other and rotate relative to each other, receiving and compressing the cotton discharged from the lower cotton box channel, and then causing it to fall onto the conveying surface of the conveyor belt, where it is transported to subsequent processes.

[0019] As a preferred embodiment of the present invention, the lower cotton box is further provided with an air conveying channel, the lower end of which is connected to the lower cotton box channel; the cotton feeder also includes multiple blowers, each blower being installed on the top of the lower cotton box, with the air nozzle of each blower facing downwards and connected to the upper end of the air conveying channel. During operation, each blower delivers air to the lower cotton box channel through the air conveying channel, pushing the raw material downwards along the lower cotton box channel.

[0020] Compared with the prior art, the present invention has the following advantages: (1) The cotton feeding device of this cotton feeding machine can evenly spread and spread the raw materials entering the cotton feeding machine in the upper cotton box to form a uniform cotton storage layer, prevent uneven accumulation, insufficient cotton or no cotton in the upper cotton box, make the horizontal cotton capacity of the cotton box more consistent, and avoid the problem of uneven thickness of the finished product (such as non-woven fabric). (2) The lower cotton box channel adjustment device in this cotton feeding machine can adjust the position of the corresponding adjustment plate in the front and rear directions through each position adjustment unit, thereby making precise local adjustments to the lower cotton box channel in the width direction, realizing refined and multi-point independent volume control of the lower cotton box channel, thereby improving the lateral uniformity and quantitative accuracy of the output cotton, which can meet the stringent requirements of raw material uniformity for the production of high-end non-woven products (such as non-woven fabrics). Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a cotton feeder according to a preferred embodiment of the present invention.

[0022] Figure 2 yes Figure 1 The image shows a cross-sectional view of the inside of the cotton feeder.

[0023] Figure 3 yes Figure 1 The diagram shows the structure of the cotton feeding device in the cotton feeder.

[0024] Figure 4 yes Figure 3 The front view of the cotton feeding device shown.

[0025] Figure 5 yes Figure 4 The left view.

[0026] Figure 6 yes Figure 5 Top view.

[0027] Figure 7 yes Figure 1 The diagram shows the structure of the lower cotton box channel adjustment device in the cotton feeder.

[0028] Figure 8 yes Figure 7 A cross-sectional view.

[0029] Figure 9 yes Figure 7 A three-dimensional image. Detailed Implementation

[0030] like Figures 1-6As shown, this cotton feeding machine includes a lower cotton box 1, an upper cotton box 2, a feeding device 3, a cotton outlet device 4, and a cotton inlet device 5. The lower cotton box 1 has a vertically oriented lower cotton box channel 10 inside. The upper cotton box 2 is located above the lower cotton box 1, and the cotton outlet at the bottom of the upper cotton box 2 is connected to the cotton inlet at the top of the lower cotton box 1. The feeding device 3 is located above the lower cotton box channel 10, and the cotton outlet device 4 is located below the lower cotton box channel 10. The cotton inlet device 5 is located above the upper cotton box 2 and includes an air inlet fan (not shown in the figure), a three-way pipe 52, a first cotton inlet pipe 53, a second cotton inlet pipe 54, and a supplementary air fan 55. The three-way pipe 52 has a first interface 5201, a second interface 5202, and a third interface 5203. The air outlet of the air inlet fan is connected to the first interface 5201. The first end of the first cotton inlet pipe 53 and the first end of the second cotton inlet pipe 54 are respectively connected to the second interface 5202 and the third interface 5203. Interface 5203 is connected; the three-way pipe 52 is also provided with an air supply port 5204, which is located between the second interface 5202 and the third interface 5203 and is directly opposite the first interface 5201; the air supply fan 55 is installed on the outside of the three-way pipe 52, and the air outlet of the air supply fan 55 is connected to the air supply port 5204; the second end of the first cotton inlet pipe 53 has a first lower cotton section 530 extending from left to right, and the second end of the second cotton inlet pipe 54 has a second lower cotton section 540 extending from right to left. The first lower cotton section 530 and the second lower cotton section 540 are staggered one after the other. The bottom of the first lower cotton section 530 has a first strip opening 5301 extending in the left and right direction, and the bottom of the second lower cotton section 540 has a second strip opening 5401 extending in the left and right direction. The first strip opening 5301 and the second strip opening 5401 are both connected to the top of the cavity of the upper cotton box 2.

[0031] In this embodiment, the feeding device 3 includes a drive motor (not shown in the figure), a beater 31, and two feeding rollers 32. The drive motor is mounted on the lower cotton box 1. The beater 31 is rotatably mounted in the inner cavity of the lower cotton box 1 and is connected to the drive motor for transmission. It is located on the upper side of the upper opening of the lower cotton box channel 10. The two feeding rollers 32 are arranged side by side on the upper side of the beater 31. The two feeding rollers 32 press against each other and rotate relative to each other.

[0032] In this embodiment, the cotton discharge device 4 includes a conveyor belt 41 and two cotton discharge rollers 42. The conveyor belt 41 is disposed on the lower side of the lower cotton box 1, and the two cotton discharge rollers 42 are arranged side by side and rotate relative to each other. The two cotton discharge rollers 42 are located between the conveying surface of the conveyor belt 41 and the lower end of the lower cotton box channel 10.

[0033] In this embodiment, both the first cotton inlet pipe 53 and the second cotton inlet pipe 54 include a first straight connector 531, an arc connector 532, a second straight connector 533, and an oblique connector 534 connected in sequence. The first straight connector 531, the arc connector 532, the second straight connector 533, and the oblique connector 534 are all flat. One end of the first straight connector 531 of the first cotton inlet pipe 53 is connected to the second interface 5202, and the oblique connector 534 of the first cotton inlet pipe 53 constitutes the first lower cotton section 530. One end of the first straight connector 531 of the second cotton inlet pipe 54 is connected to the third interface 5203, and the oblique connector 534 of the second cotton inlet pipe 54 constitutes the second lower cotton section 540. At least one transparent substrate 535 is detachably installed on the side wall of the first cotton inlet pipe 53 and the second cotton inlet pipe 54. The transparent substrate 535 is made of transparent glass. Workers can observe the material conveying status (such as whether it is blocked) inside the first cotton inlet pipe 53 and the second cotton inlet pipe 54 through the transparent substrate 535, and can open the corresponding transparent substrate 535 for cleaning when blockage occurs, which is convenient to operate.

[0034] In this embodiment, the top of the first lower cotton section 530 gradually slopes downward from left to right, and the top of the second lower cotton section 540 gradually slopes downward from right to left.

[0035] In this embodiment, the cotton feeding machine also includes two dust collection hoods 6. Multiple filter holes 201 are provided on the left and right sides of the upper cotton box 2, and each filter hole 201 communicates with the inner cavity of the upper cotton box 2. The two dust collection hoods 6 are respectively installed on the left and right sides of the upper cotton box 2, and each dust collection hood 6 is equipped with a suction connector 7. During operation, the raw materials entering the upper cotton box 2 will generate scattered cotton fibers, dust, and other impurities. The suction connector 7 can be connected to the suction port of the dust filter through an air duct and a suction fan. The dust collection hoods 6 can collect the cotton fibers, dust, and other impurities in the upper cotton box 2 through each filter hole 201, and then sequentially convey them to the dust filter through the first air duct and the suction fan. This prevents cotton fibers, short fibers, and dust from spreading to the surrounding workshop environment, thereby improving the workshop environment.

[0036] refer to Figures 7-9This cotton feeding machine also includes a lower cotton box channel adjustment device 8. The lower cotton box channel adjustment device 8 includes a support frame 82, a fixed plate 83, multiple adjustment plates 84, and multiple position adjustment units 85. The support frame 82 is installed in the bottom of the inner cavity of the lower cotton box 1. The fixed plate 83 is installed on the support frame 82 and is arranged vertically. Each adjustment plate 84 is arranged from left to right on the front side of the fixed plate 83. The adjustment plates 84 are installed on the support frame 82 through a front and rear guide mechanism 86. The rear side of each adjustment plate 84 and the front side of the fixed plate 83 form a lower cotton box channel 10. Each position adjustment unit 85 is installed on the support frame 82 and can adjust the position of the corresponding adjustment plate 84 in the front and rear directions.

[0037] In this embodiment, approximately eight independently adjustable adjustment plates 84 per meter are provided at the bottom of the inner cavity of the lower cotton box 1.

[0038] In this embodiment, the position adjustment unit 85 includes an adjustment seat 851, an adjustment screw 852, and an adjustment handwheel 853. The adjustment seat 851 is fixedly installed on the support frame 82 and is located in front of the adjustment plate 84. The adjustment seat 851 is provided with an adjustment screw hole 8510 running in a front-back direction. The middle part of the adjustment screw 852 is located in the adjustment screw hole 8510. The rear end of the adjustment screw 852 is rotatably connected to the adjustment plate 84 through a bearing 854 (the rear end of the adjustment screw 852 is connected to the inner ring of the bearing 854, and the outer ring of the bearing 854 is connected to the front side of the adjustment plate 84). The adjustment handwheel 853 is fixedly installed at the front end of the adjustment screw 852.

[0039] In this embodiment, the support frame 82 has multiple guide channels 820 extending in the front-back direction (each guide channel 820 is composed of two side-by-side partitions, with an adjusting plate 84 positioned between the corresponding two partitions, and the two side edges of the adjusting plate 84 contacting and engaging with the two partitions); the number of guide channels 820 and adjusting plates 84 are the same and correspond one-to-one, with the adjusting plate 84 positioned within the corresponding guide channel 820; the front-back guiding mechanism 86 includes a guide plate 861, multiple guide bolts 862, and multiple fixing nuts 863. The guide plate 861 is mounted on the support frame 82, and the guide plate 861 has multiple strip-shaped guide holes arranged sequentially from left to right. 8610, each strip-shaped guide hole 8610 extends in the front-to-back direction; each adjusting plate 84 is located on the lower side of the guide plate 861, and each adjusting plate 84 has a top plate 841 at its upper end. The top plate 841 has vertically oriented connecting through holes (not shown in the figure). The number of connecting through holes, guide bolts 862, and strip-shaped guide holes 8610 are the same and correspond one-to-one. The screw of each guide bolt 862 is located in the corresponding strip-shaped guide hole 8610 and the connecting through hole, respectively. Each fixing nut 863 is installed on the screw of the corresponding guide bolt 862. The guide plate 861 and the top plate 841 are located between the head of the guide bolt 862 and the fixing nut 863. With this structure, the guide bolts 862 installed on the corresponding adjusting plates 84 can be guided through the strip-shaped guide holes 8610 on the guide plate 861, thereby guiding the adjusting plates 84 in the front-to-back direction.

[0040] In this embodiment, the lower cotton box 1 is also provided with an air conveying channel 11, the lower end of which is connected to the lower cotton box channel 10. The cotton feeder also includes multiple blowers 9, each blower 9 is installed on the top of the lower cotton box 1, and the air outlet of each blower 9 is set downward and connected to the upper end of the air conveying channel 11. During operation, each blower 9 delivers air to the lower cotton box channel 10 through the air conveying channel 11, and uses the air pressure to push the raw material down along the lower cotton box channel 10.

[0041] The working principle of this cotton feeding machine is briefly described below: During operation, raw materials (such as raw cotton or chemical fibers) are drawn into the three-way pipe 52 from the first interface 5201 by the intake fan. At the same time, the supplementary air fan 55 blows air towards the first interface 5201 through the supplementary air port 5024, causing the raw materials entering the three-way pipe 52 to be diverted: part of the raw materials are successively transported through the first straight connector 531, the arc connector 532 and the second straight connector 533 of the first cotton inlet pipe 53 to the inclined connector 534 that constitutes the first lower cotton section 530, and fall into the cavity of the upper cotton box 2 from the first strip opening 5301; the other part of the raw materials are successively transported through the first straight connector 531 and the arc connector 533 of the second cotton inlet pipe 54. 2. The first and second straight pipes 533 convey the cotton to the inclined pipes 534 that form the second lower cotton section 540, and the cotton falls into the cavity of the upper cotton box 2 through the second strip opening 5401. Since the first and second lower cotton sections 530 and 540 extend in opposite directions and are staggered one after the other, the raw material entering the cotton feeder can be divided into two independent feed paths and then converge in the cavity of the upper cotton box 2. The tops of the first and second lower cotton sections 530 and 540 are used to tilt and press down the arriving raw material, allowing it to fall smoothly into the cavity of the upper cotton box 2. This allows the cotton to be evenly diffused and spread in the upper cotton box 2, and the amount of cotton from the cotton feed heads on both sides is symmetrical and complementary, thus preventing the upper cotton box from overflowing. Uneven cotton accumulation, insufficient cotton, or no cotton occurs in the cotton box 2, thus forming a uniform cotton storage layer in the upper cotton box 2; the two feeding rollers 32 of the feeding device 3 press against each other and rotate relative to each other, receiving the raw material (such as raw cotton or chemical fiber) entering the inner cavity of the lower cotton box 1, applying pressure to it and conveying it towards the beater 31. The beater 31 rotates continuously under the drive of the drive motor, feeding the raw material evenly into the lower cotton box channel 10. The position of the corresponding adjusting plate 84 in the front-back direction can be adjusted by each position adjusting unit 85: the adjusting screw 852 can be rotated by rotating the adjusting handwheel 853, and the adjusting screw 852 and the adjusting screw hole on the adjusting seat 851 can be used to adjust the position of the adjusting plate 84 in the front-back direction. The meshing relationship between 8510 drives the adjusting screw 852 to move forward or backward along the adjusting screw hole 8510, and under the guidance of the front and rear guiding mechanisms 86, drives the adjusting plate 84 to move forward or backward a certain distance. This allows for precise local adjustment of the lower cotton box channel 10 in the width direction, achieving refined and multi-point independent volume control of the lower cotton box channel 10, thereby improving the lateral uniformity and quantitative accuracy of the output cotton. Subsequently, the two cotton output rollers 42 press against each other and rotate relative to each other, receiving the cotton output from the lower cotton box channel 10 and squeezing it, then causing it to fall onto the conveying surface of the conveyor belt 41, which then transports it to the subsequent process.

[0042] Furthermore, it should be noted that the names of the various parts of the specific embodiments described in this specification may differ. All equivalent or simple variations made to the structure, features, and principles of this invention are included within the scope of protection of this invention. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this invention or exceed the scope defined by the claims, all of which should fall within the scope of protection of this invention.

Claims

1. A cotton feeding machine, comprising a lower cotton box, an upper cotton box, and a cotton discharging device, wherein the lower cotton box has a vertically oriented lower cotton box channel, and a feeding device is disposed above the lower cotton box channel; the upper cotton box is disposed above the lower cotton box, and the cotton discharging port at the bottom of the upper cotton box is connected to the cotton inlet at the top of the lower cotton box; the cotton discharging device is disposed below the lower cotton box channel; characterized in that: The cotton feeder also includes a cotton inlet device, which is located above the upper cotton box. The cotton inlet device includes an air inlet fan, a three-way pipe, a first cotton inlet pipe, a second cotton inlet pipe, and a supplementary air fan. The three-way pipe has a first interface, a second interface, and a third interface. The air outlet of the air inlet fan is connected to the first interface. The first end of the first cotton inlet pipe and the first end of the second cotton inlet pipe are connected to the second interface and the third interface, respectively. A supplementary air inlet is provided on the three-way pipe, located between the second and third interfaces and directly facing the first interface. The supplementary air fan... It is installed on the outside of the three-way pipe, and the air outlet of the air supply fan is connected to the air supply port; the second end of the first cotton inlet pipe has a first lower cotton section extending from left to right, and the second end of the second cotton inlet pipe has a second lower cotton section extending from right to left. The first lower cotton section and the second lower cotton section are staggered one after the other. The bottom of the first lower cotton section has a first strip opening extending in the left and right direction, and the bottom of the second lower cotton section has a second strip opening extending in the left and right direction. Both the first strip opening and the second strip opening are connected to the top of the cavity of the upper cotton box.

2. A cotton feeder according to claim 1, characterized in that: The top of the first lower cotton section gradually slopes downward from left to right, and the top of the second lower cotton section gradually slopes downward from right to left.

3. A cotton feeding machine according to claim 1, characterized in that: Both the first cotton inlet pipe and the second cotton inlet pipe include a first straight connector, an arc connector, a second straight connector, and an oblique connector connected in sequence; one end of the first straight connector of the first cotton inlet pipe is connected to the second interface, and the oblique connector of the first cotton inlet pipe constitutes the first lower cotton section; one end of the first straight connector of the second cotton inlet pipe is connected to the third interface, and the oblique connector of the second cotton inlet pipe constitutes the second lower cotton section.

4. A cotton feeder according to claim 1, characterized in that: At least one transparent substrate is detachably installed on the side wall of the first cotton inlet pipe and the second cotton inlet pipe.

5. A cotton feeding machine according to claim 1, characterized in that: The left and right sides of the upper cotton box are provided with multiple filter holes, and each filter hole is connected to the inner cavity of the upper cotton box; the cotton feeder also includes two dust collection hoods, which are respectively installed on the left and right sides of the upper cotton box, and the dust collection hoods are provided with dust suction connectors.

6. A cotton feeder according to claim 1, characterized in that: The cotton feeder also includes a lower cotton box channel adjustment device, which includes a support frame, a fixed plate, multiple adjustment plates, and multiple position adjustment units. The support frame is installed in the bottom of the inner cavity of the lower cotton box, the fixed plate is installed on the support frame and is arranged vertically, and each adjustment plate is arranged sequentially from left to right on the front side of the fixed plate. The rear side of each adjustment plate and the front side of the fixed plate form the lower cotton box channel. Each position adjustment unit is installed on the support frame and can adjust the position of the corresponding adjustment plate in the front-back direction.

7. A cotton feeder according to claim 5, characterized in that: The adjusting plate is mounted on the support frame via a front and rear guide mechanism; the position adjusting unit includes an adjusting seat, an adjusting screw, and an adjusting handwheel. The adjusting seat is fixedly mounted on the support frame and located in front of the adjusting plate. The adjusting seat has an adjusting screw hole running in a front-to-back direction. The middle part of the adjusting screw is located in the adjusting screw hole. The rear end of the adjusting screw is rotatably connected to the adjusting plate. The adjusting handwheel is fixedly mounted on the front end of the adjusting screw.

8. A cotton feeder according to claim 7, characterized in that: The support frame has multiple guide channels extending in the front-to-back direction. The number of guide channels is the same as the number of adjustment plates, and they correspond one-to-one. The adjustment plates are located in the corresponding guide channels. The front-to-back guide mechanism includes a guide plate, multiple guide bolts, and multiple fixing nuts. The guide plate is mounted on the support frame and has multiple strip-shaped guide holes arranged sequentially from left to right. Each strip-shaped guide hole extends in the front-to-back direction. Each adjustment plate is located on the lower side of the guide plate. Each adjustment plate has a top plate at its upper end. The top plate has vertically oriented connecting through holes. The number of connecting through holes, guide bolts, and strip-shaped guide holes is the same as the number of guide bolts, and they correspond one-to-one. The screw of each guide bolt is located in the corresponding strip-shaped guide hole and connecting through hole. Each fixing nut is installed on the screw of the corresponding guide bolt. The guide plate and the top plate are located between the head of the guide bolt and the fixing nut.

9. A cotton feeder according to claim 1, characterized in that: The feeding device includes a beater, a drive motor, and two feeding rollers. The drive motor is mounted on the lower cotton box. The beater is rotatably mounted in the inner cavity of the lower cotton box and is connected to the drive motor for transmission. It is located above the upper opening of the lower cotton box channel. The two feeding rollers are arranged side by side on the upper side of the beater. The two feeding rollers press against each other and rotate relative to each other. The cotton discharge device includes a conveyor belt and two cotton discharge rollers. The conveyor belt is located on the lower side of the lower cotton box. The two cotton discharge rollers are arranged side by side and rotate relative to each other. The two cotton discharge rollers are located between the conveying surface of the conveyor belt and the lower end of the lower cotton box channel.

10. A cotton feeder according to claim 1, characterized in that: The lower cotton box is also equipped with an air conveying channel, the lower end of which is connected to the lower cotton box channel; the cotton feeder also includes multiple blowers, each blower is installed on the top of the lower cotton box, and the air outlet of each blower is set downward and connected to the upper end of the air conveying channel.

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