A double cotton box cotton storage and feeding device

Abstract

A double-cotton-box cotton storage and feeding device, characterized in that: the double-cotton-box cotton storage and feeding device is composed of at least two pneumatic-electric hybrid dust-exhausting cotton storage boxes with the same structure arranged in parallel front and back, and a return air zone arranged around the front and rear cotton storage boxes; the front and rear cotton storage boxes include front and rear cotton storage box inner cavities surrounded by left and right inner panels, front and rear mesh panels, middle mesh panel partitions, and cotton feeding rollers located at the bottom, and a distribution baffle is arranged on the top of the middle mesh panel partition, and the upper ends of the front and rear cotton storage box inner cavities are connected with the cotton inlet duct; the return air zone is composed of a space surrounded by front, rear, left and right outer panels, left and right inner panels, front and rear mesh panels, a return air zone top plate, and a return air duct is arranged at the lower part of the return air zone on the side opposite to the cotton inlet duct.

Description

Technical Field

[0001] The invention relates to the field of textile machinery, in particular to a double cotton box cotton storage and feeding device suitable for cotton opening or cotton cleaning equipment with a cotton box cotton storage function. Background Art

[0002] The cotton opening or cleaning equipment is one of the main machines of the cleaning and carding machine, which is responsible for the opening and cleaning of raw materials. It is a common method to feed the raw materials into the cotton opening or cleaning equipment by airflow. When the cotton opening or cleaning equipment adopts the airflow feeding method, the cotton storage box is an indispensable device for the cotton opening or cleaning equipment.

[0003] National utility model patent ZL2018 2 1129234.6 "A gas-electric mixed control dust-exhaust cotton feeding box device suitable for a cotton opener or weighing machine" has listed two traditional cotton feeding box devices and a gas-electric mixed control dust-exhaust cotton feeding box device.

[0004] There are two types of traditional cotton feeding box devices: one is a swing-grid electric-controlled cotton box, and the other is a photoelectric switch cotton box. The upper part of the traditional cotton box is connected to the condenser, and the lower part is connected to the cotton opening and cleaning equipment. The cotton peeling wing beater of the condenser separates the cotton condensed on the dust cage and drops it into the cotton box, where it is piled up to reach a certain cotton storage capacity. Since the cotton falls by its own weight, the cotton is not dense enough and the yield is small. At the same time, the cotton is unevenly distributed along the machine width, which is not conducive to the opening and cleaning of the rear machine. In addition, the traditional cotton box does not have the ability to remove dust, short fibers and fine impurities.

[0005] Chinese Patent ZL2018 2 1129234.6 "A gas-electric mixed control dust-exhaust cotton feeding box device suitable for a cotton opener or weighing machine" describes a gas-electric mixed control dust-exhaust cotton feeding box device that stores cotton evenly in the horizontal direction and has a strong ability to remove dust, short fibers and fine impurities. It overcomes the shortcomings of traditional cotton box devices that store cotton unevenly in the horizontal direction, cannot remove dust, short fibers and fine impurities, and are not suitable for the cotton picking process requirements of spinning machines.

[0006] The above two traditional cotton feeding boxes and the gas-electric hybrid dust-exhaust cotton feeding box are both single cotton boxes. The cotton storage capacity of the cotton box is limited by the thickness and height of the cotton box. When the production fluctuation of the machines before and after the blowing-carding is small, the single cotton box can meet the production needs. However, when the production fluctuation of the machines before and after the blowing-carding is large, the insufficient cotton storage capacity of the single cotton box, the weak production stability and balance ability, and the large fluctuation of the cotton supply in the pipeline are fully exposed. Summary of the invention

[0007] The purpose of the present invention is to provide a novel cotton box cotton storage and feeding device in view of the deficiencies existing in the above-mentioned prior art.

[0008] The purpose of the present invention can be achieved by the following technical measures:

[0009] The double-cotton-box cotton storage and feeding device of the present invention is composed of at least two pneumatic-electric hybrid-controlled dust-exhausting cotton storage boxes with the same structure arranged in parallel front and back, and a return air zone arranged around the front and rear cotton storage boxes; the front and rear cotton storage boxes include front and rear cotton storage box inner cavities surrounded by left and right inner panels, front and rear mesh panels, middle mesh panel partitions, and cotton feeding rollers located at the bottom, and a distribution baffle is arranged on the top of the middle mesh panel partition, and the upper ends of the front and rear cotton storage box inner cavities are connected with the cotton inlet duct; the return air zone is composed of a space surrounded by front, rear, left and right outer panels, left and right inner panels, front and rear mesh panels, a return air zone top plate, and a return air duct is arranged at the lower part of the return air zone on the side opposite to the cotton inlet duct.

[0010] The present invention provides a pressure sensor in the cotton feeding pipe; and the front and rear cotton storage boxes are respectively provided with a pair of mutually radiating lower cotton box photoelectric switches and a pair of mutually radiating upper cotton box photoelectric switches.

[0011] The present invention provides a pair of cotton feeding rollers with the same rotation speed and opposite rotation directions at the bottom of each cotton storage box, and the rotation speeds of the cotton feeding rollers at the bottoms of adjacent cotton storage boxes are different.

[0012] The working principle and beneficial effects of the present invention are as follows:

[0013] Under the action of airflow, cotton enters the front and rear cotton storage boxes at the same time after being adjusted by the distribution baffle. During the falling process of cotton, the fine dust and short fibers contained therein are discharged to the dust exhaust circuit to the dust filter system through the mesh plates around the cotton box under the action of the positive pressure in the cotton box, and the cotton is fed to the opening system through the cotton feeding rollers with different speeds. The general requirement of the cotton box for cotton cleaning process equipment is thin feeding, so the cotton box cannot be too wide. The present invention adopts two or more cotton boxes arranged in parallel front and back. Under the conditions of the same density, the same cotton box width and the same cotton output speed, the weight of cotton output by the double cotton box is twice the weight of cotton output by the single cotton box, thereby increasing the output of a single machine. The advantage of a large cotton storage capacity is that when the output of the front machine fluctuates greatly, the impact on the rear machine is small, which is conducive to the balance of the pressure of the combing pipe, so that the combing machine can stably produce cotton strips. Compared with a single cotton box with the same output, the cotton layer output by the double cotton box is thinner, which is conducive to avoiding the generation of large cotton blocks, thereby reducing the choking phenomenon.

[0014] The double cotton box cotton storage and feeding device involved in the present invention has a mesh plate structure for the partitions of the two cotton boxes. The mesh plate has a plurality of air holes, and the cotton can be isolated and the airflow is connected. The larger gas flow space formed by the double cotton box is conducive to the balance of the airflow in the cotton box and avoids airflow turbulence. After the cotton with a certain cotton-gas ratio is blown into the cotton box, the cotton is output to the opening system through the roller, and the cotton with gas enters the return air area through the mesh plate. The two sides of the cotton box are also mesh plate structures, and the airflow in the cotton box and the return air area are also connected. The inside of the cotton box is a positive pressure area, and the return air area is a negative pressure area. Under the action of the positive pressure of the cotton box, the fine dust and short fluff contained in the cotton enter the return air area through the mesh plate with the airflow and are sucked away by the dust filter system. Some of the fine dust, short fluff and fine impurities in the cotton box are discharged to the dust filter system with the airflow, so the double cotton box has the function of removing fine dust.

[0015] The double cotton box cotton storage and feeding device involved in the present invention has a distribution baffle above the mesh plate between the cotton boxes, and the distribution baffle can be adjusted in height. The two cotton boxes are arranged side by side front and back, and the airflow blows the cotton into the two cotton boxes horizontally. Due to the different wind speeds when feeding the cotton, the proportion of cotton entering the two cotton boxes is not exactly the same; the different speeds of cotton output in the cotton boxes will also lead to differences in the cotton storage height of the cotton boxes. By adjusting the height of the distribution baffle, the distribution ratio of cotton in the two cotton bins can be adjusted to balance the cotton storage height of the double cotton boxes.

[0016] The present invention has a pair of cotton feeding rollers with the same rotation speed and opposite rotation direction under each cotton box, and the cotton feeding rollers of adjacent cotton boxes have different rotation speeds. Since the rotation speeds of the cotton feeding rollers of each cotton box are different, the speed of outputting cotton is also different, so that the cotton entering each cotton box at the same time is output from each cotton box through the cotton feeding rollers at different time periods. In this way, the cotton is fed in at the same time and output at different times, so that the raw materials can be further mixed, so the double cotton box device has a mixing effect. By adjusting the rotation speed ratio of the cotton feeding rollers of the cotton box, the cotton mixing ratio can be adjusted, thereby optimizing the spinning process.

[0017] The double cotton box cotton storage and feeding device involved in the present invention has two pairs of upper and lower opposing photoelectric switches in each cotton box, and a pressure detection device in the cotton inlet pipe. The cotton feeding control program must meet the following requirements: under the action of airflow, cotton enters the cotton box of the device at the same time after being adjusted by the distribution baffle. When one of the photoelectric switches under each cotton box cannot detect cotton, the rear machine feeds cotton quickly; when the lower photoelectric switches are blocked by cotton, the rear machine feeds cotton at a normal speed; when the upper photoelectric switches are blocked by cotton, the rear machine feeds cotton slowly. As more and more cotton is put into the cotton box, the cotton storage height gradually increases, and the pressure in the cotton box gradually increases. When the pressure in the cotton box reaches the set value, the rear machine stops feeding cotton. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the main cross-sectional view of the present invention. Arrows in the figure indicate the direction of air flow.

[0019] Figure 2 yes Figure 1 AA section view.

[0020] Figure 1 , Figure 2 Serial number: 1: Return air zone bottom plate; 2a, 2b: Photoelectric switch under cotton box; 3a, 3b: Photoelectric switch on cotton box; 4a: Front mesh plate; 4b: Rear mesh plate; 4c: Middle mesh plate partition; 5: Distribution baffle; 6a: Front outer plate; 6b: Rear outer plate; 7: Return air zone top plate; 8: Cotton inlet duct; 9: Pressure sensor; 10: Top cover; 12a, 12b, 12c, 12d: Cotton feeding roller; 13: Return air zone; 14a: Front cotton storage box; 14b: Rear cotton storage box; 15a: Right inner plate; 15b: Left inner plate; 16a: Right outer plate; 16b: Left outer plate; 17a: Right return air duct; 17b: Left return air duct. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with embodiments (attached drawings):

[0022] The double cotton box cotton storage and feeding device of the present invention is composed of at least two pneumatic and electric hybrid dust-exhausting cotton storage boxes of the same structure arranged in parallel front and back, and a return air zone 13 arranged around the front and rear cotton storage boxes 14a and 14b; the front and rear cotton storage boxes include front and rear cotton storage box inner cavities surrounded by a left inner panel 15b, a right inner panel 15a, a front mesh plate 4a, a rear mesh plate 4b, an intermediate mesh plate partition 4c, and a cotton feeding roller located at the bottom, and a distribution baffle 5 is arranged on the top of the intermediate mesh plate partition 4c, the upper ends of the front and rear cotton storage box inner cavities are connected to the cotton inlet pipe 8, and a pressure sensor 9 is arranged in the cotton inlet pipe 8; the return air zone 13 is composed of a space surrounded by front, rear, left and right outer panels, left and right inner panels, front and rear mesh panels, a return air zone top plate, and a return air zone bottom plate, and left and right return air ducts 17b and 17a are arranged at the lower part of the return air zone 13 on the side relative to the cotton inlet pipe 8.

[0023] The present invention provides a pair of mutually facing lower cotton box photoelectric switches 2a, 2b and a pair of mutually facing upper cotton box photoelectric switches 3a, 3b on the front and rear cotton storage boxes, respectively.

[0024] The present invention provides a pair of cotton feeding rollers with the same rotation speed and opposite rotation directions at the bottom of each cotton storage box, and the rotation speeds of the cotton feeding rollers at the bottoms of adjacent cotton storage boxes are different.

[0025] Furthermore, the distribution baffle 5 described in the present invention is located on the top of the mesh plate 4c between the two cotton boxes and can be adjusted up and down. By adjusting the height of the distribution baffle 5, the distribution ratio of cotton in the two cotton boxes can be adjusted.

[0026] The two cotton boxes are separated by a middle mesh plate partition 4c, and the airflow is connected. The airflow in the front and rear cotton storage boxes 14a, 14b enters the return air area 13 through the front and rear mesh plates 4a, 4b, and then passes through the left and right return air ducts 17b, 17a to the dust filter room.

[0027] A pair of feeding rollers are provided at the bottom of each cotton box, and the feeding rollers convey the cotton in the cotton box to the opening system. When a pair of feeding rollers 12a, 12b at the bottom of the front cotton storage box 14a and another pair of feeding rollers 12c, 12d at the bottom of the rear cotton storage box 14b output cotton at different speeds, the cotton in the two cotton boxes will be mixed in a way that the raw materials are fed in at the same time but output at different times, so that the raw materials can be further mixed.

[0028] Both cotton storage boxes have a pair of photoelectric switches at the top and bottom, and the pressure sensor 9 at the cotton inlet pipe 8 detects the pressure of the cotton box. The cotton feeding control program must meet the following requirements: cotton, under the action of airflow, is adjusted by the distribution baffle 5 and enters the front and rear cotton storage boxes 14a and 14b at the same time. When one of the photoelectric switches 2a and 2b under the cotton box cannot detect cotton, the rear machine feeds cotton quickly; when the photoelectric switches 2a and 2b under the cotton box are blocked, the rear machine feeds cotton at a normal speed; when the photoelectric switches 3a and 3b on the cotton box are blocked, the rear machine feeds cotton slowly; when the pressure sensor 9 detects that the pressure of the cotton box reaches the set value, the rear machine stops feeding cotton.

Claims

1. A double cotton box cotton storage and feeding device, characterized in that: The double cotton box cotton storage and feeding device is composed of two cotton storage boxes arranged in parallel front and back, and a return air zone arranged around the front and rear cotton storage boxes, and the front and rear cotton storage boxes have the same structure, both of which are gas-electric hybrid control dust removal cotton storage boxes; the front and rear cotton storage boxes include front and rear cotton storage box inner cavities surrounded by left and right inner panels, front and rear mesh panels, middle mesh panel partitions, and cotton feeding rollers located at the bottom, and a distribution baffle is arranged on the top of the middle mesh panel partition, and the upper ends of the front and rear cotton storage box inner cavities are connected to the cotton feeding duct; the return air zone is composed of front, rear, left and right The space is composed of an outer plate, left and right inner plates, front and rear mesh plates, a return air zone top plate, and a return air zone bottom plate, and left and right return air ducts are arranged at the lower part of the return air zone on the side opposite to the cotton inlet duct; a pressure sensor is arranged in the cotton inlet duct; a pair of mutually facing lower photoelectric switches and a pair of mutually facing upper photoelectric switches are arranged at the front and rear cotton storage boxes respectively; a pair of cotton feeding rollers with the same rotation speed and opposite rotation direction are arranged at the bottom of each cotton storage box, and the rotation speeds of the cotton feeding rollers located at the bottom of adjacent cotton storage boxes are different.

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