A kind of cotton evening roller with anti-winding, multi-point supporting weighing type bale opener

Abstract

The present application relates to a multi-point supporting weighing type bale opener with anti-winding evenness roller, which comprises a cotton entering unit, an evenness unit and a weighing unit, wherein the evenness unit comprises an evenness cavity, an evenness transmission mechanism and an evenness roller, and the weighing unit comprises a cross beam and a weighing hopper. In one aspect, when the roller body of the evenness roller rotates, the air in the fan-shaped area is extruded by the wind blocking die strip to form centrifugal wind flowing from inside to outside to block the fibers from entering, thereby realizing the function of preventing fiber winding. Even if some fibers fall into the fan-shaped area or on the wind blocking die strip due to shutdown, winding is not easily formed, and the fibers can be taken away by centrifugal wind when running again, thereby reducing the cost of long-term use. In another aspect, the weighing hopper adopts a three-point type weighing structure to form stable support for the hopper box. Even if the fibers are unevenly distributed in the hopper box, the hopper box will not be inclined, and the weighing result is not affected by the fiber distribution in the hopper during weighing, thereby improving the accuracy of the weighing result and the stability of the weighing.

Description

Technical Field

[0001] This invention belongs to the field of textile machinery, specifically relating to a weighing-type opening machine with an anti-winding cotton leveling roller and multi-point support. Background Technology

[0002] A pack opener is a device that pre-breaks tightly packaged nonwoven fibers and then feeds them into an opening machine for opening. It is an indispensable component of a complete set of nonwoven production equipment. Among them, cotton leveling and weighing are two important components. For example, a pack opener disclosed in CN206089898U has a horizontally rotating cotton leveling roller inside for uniformly feeding nonwoven fibers to the cotton stripping roller for stripping. For weighing, it has a weighing and measuring device inside to weigh different types of fibers or the same type of fibers with different specifications, thereby controlling the ratio between the fibers.

[0003] However, the aforementioned package opening machine has the following technical defects:

[0004] 1. Since most cotton leveling rollers consist of a roller body and a row of leveling teeth set on the roller body, during use, the inside of the unpacking machine is under positive pressure. The positive pressure air force causes the fibers floating inside the machine to drill into the poorly sealed gaps, making it easy for fibers to get tangled between the journals on both sides of the leveling roller and the equipment wall plate, increasing additional friction and motor load. If not cleaned in time, the leveling roller may be jammed by the tightly tangled fibers, and in severe cases, it may burn out the drive motor.

[0005] 2. The weighing and metering device includes a hopper and weighing sensors on both sides of the hopper. The weighing sensors support the hopper on both sides and perform weighing. Since the fiber distribution in the hopper is not uniform, when it is biased to one side, it will cause the hopper to tilt accordingly, resulting in a deviation between the weighed weight and the actual value. The weighing stability is poor. When feeding multiple times, if the fibers in the hopper are all biased to this side, this deviation will be magnified many times over, ultimately affecting the quality of the textile. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an improved packing machine with an anti-winding cotton leveling roller and a multi-point support weighing type.

[0007] To solve the above technical problems, the present invention adopts the following technical solution:

[0008] A cotton-feeding machine with an anti-winding cotton-feeding roller and a multi-point support weighing mechanism includes a cotton feeding unit, a cotton-feeding unit, and a weighing unit. The cotton feeding unit includes a feeding conveyor mechanism and a transfer conveyor mechanism. The cotton-feeding unit includes a cotton-feeding chamber, a cotton-feeding conveyor mechanism located within the cotton-feeding chamber, and a cotton-feeding roller. The cotton-feeding conveyor mechanism is connected to the transfer conveyor mechanism. The weighing unit is connected to the outlet of the cotton-feeding chamber. Specifically, the cotton-feeding roller includes a roller body and a cotton-feeding toothed row. The roller body includes a cylindrical roller body and shaft ends coaxially connected to both ends of the roller body. The root of the shaft end and the end face of the roller body are connected by a gradually increasing diameter. The roller body is connected to the concave arc-shaped transition section; the two ends of the roller body are detachably connected to the wind baffle strips. One end of the wind baffle strip contacts the large end of the concave arc-shaped transition section, and the other end extends along the radial direction of the roller body. The thickness of the wind baffle strip in the axial direction of the roller body is 0.1-0.3 mm smaller than the distance between the end face of the roller body and the equipment wall plate. There are multiple wind baffle strips and they are evenly distributed along the axis of the roller body. Adjacent wind baffle strips form a fan-shaped area. When the roller body rotates, the air in the fan-shaped area is squeezed out by the wind baffle strips, forming a centrifugal wind flowing from the inside to the outside, which blocks the fibers from entering.

[0009] The weighing unit includes a crossbeam and a weighing hopper. The crossbeam includes a first crossbeam and a second crossbeam arranged in parallel and spaced apart. The weighing hopper is suspended below the first crossbeam and the second crossbeam by a weighing assembly. The weighing hopper includes a material frame and a baffle. The material frame is formed by a first side plate, a second side plate, a third side plate, and a fourth side plate connected vertically in sequence. The baffle is connected to the bottom of the material frame in an openable and closable manner, and is used to open or close the bottom opening of the material frame. The weighing assembly includes a first weighing sensor and a second weighing sensor. The first weighing sensor is disposed between the first crossbeam and the first side plate. There are two first weighing sensors located at both ends of the first side plate along its length. The second weighing sensor is disposed between the second crossbeam and the third side plate. The second weighing sensor is located in the middle of the third side plate along its length, so that the weighing assembly forms a three-point weighing structure.

[0010] Preferably, the cotton leveling and conveying mechanism includes an annular drive belt, multiple support rods extending along the width direction of the annular drive belt and distributed circumferentially around the annular drive belt, and cotton leveling pins arranged side by side on each of the support rods. The annular drive belt is arranged from top to bottom and tilted to the left. The cotton inlet unit is located on the right side of the lower part of the annular drive belt, and the cotton leveling roller is located on the right side of the upper part of the annular drive belt and is spaced apart from the cotton leveling pins that the conveying roller passes through.

[0011] According to a specific embodiment and preferred aspect of the present invention, the left side of the cotton leveling chamber is a storage chamber and the right side is a leveling chamber. The leveling roller is located in the leveling chamber. The leveling unit further includes an auxiliary cotton roller disposed in the storage chamber and near the upper part of the annular transmission belt. The auxiliary cotton roller can level the cotton and take the cotton material out from the leveling needle and discharge it into the storage chamber. The material is then discharged from the storage chamber to the weighing unit for weighing.

[0012] Preferably, the auxiliary cotton roller includes an auxiliary roller body and needles distributed in the circumferential direction of the auxiliary roller body.

[0013] According to another specific embodiment and preferred aspect of the present invention, the outer end face of the windbreak strip is lower than or flush with the outer wall of the roller body; and / or, when the outer end face of the windbreak strip is lower than the outer wall of the roller body, the distance between the outer end face of the windbreak strip and the outer wall of the roller body is not greater than 0.5 mm; and / or, a plurality of countersunk holes are provided at intervals on the surface of the windbreak strip away from the roller body, and the end face of the roller body is provided with threaded holes corresponding to the countersunk holes one by one, and the windbreak strip is locked to the end face of the roller body by bolts passing through the countersunk holes and threadedly connected to the threaded holes; and / or, the end of the windbreak strip near the concave arc-shaped transition portion is provided with a chamfered surface, and the chamfered surface extends obliquely towards the roller body from the outside to the inside.

[0014] According to another specific embodiment and preferred aspect of the present invention, a first air supply hole extending along the axial direction of the roller body is provided at the center of the end face of the shaft end. The first air supply hole is a blind hole. A second air supply hole extending along the radial direction of the roller body is provided on the outer wall of the root of the shaft end. The second air supply hole is located between the end face of the roller body and the equipment wall plate. The second air supply hole communicates with the first air supply hole to form an air supply channel. The air pressure in the air supply channel is higher than the air pressure inside the packaging machine box. And / or, there are multiple second air supply holes. In the circumferential direction of the roller body, the second air supply holes are flush with and / or staggered with the wind baffle strips. When the second air supply holes are staggered with the wind baffle strips, the second air supply hole is located in the middle of the adjacent wind baffle strips.

[0015] According to another specific embodiment and preferred aspect of the invention, a cotton-leveling toothed row is connected to the outer wall of the roller body and extends along the axial direction of the roller body. The cotton-leveling toothed row has multiple rows and is evenly distributed along the axis of the roller body. Alternatively, the projection of the cotton-leveling toothed row in the axial direction of the roller body is L-shaped. The cotton-leveling toothed row includes a vertically connected mounting plate and a toothed plate. The mounting plate is connected to the outer wall of the roller body, and the toothed plate extends along the radial direction of the roller body. The end face of the toothed plate away from the roller body is a serrated surface. The surface of the mounting plate that contacts the outer wall of the roller body is an arc surface, and the diameter of the arc surface is equal to the outer diameter of the roller body, so that the arc surface fits snugly against the outer wall of the roller body.

[0016] In some specific embodiments, the contact between the first weighing sensor and the first side plate is a point contact, and the contact between the second weighing sensor and the third side plate is a point contact or a surface contact, wherein the contact point between the first weighing sensor and the first side plate and the contact point or contact surface between the second weighing sensor and the third side plate are located on the same horizontal plane; or, the contact between the first weighing sensor and the first side plate is a surface contact, and the contact between the second weighing sensor and the third side plate is a point contact or a surface contact, wherein the contact surface between the first weighing sensor and the first side plate and the contact point or contact surface between the second weighing sensor and the third side plate are located on the same horizontal plane.

[0017] Furthermore, the baffle is rotatably connected to the bottom of the second side plate and / or the fourth side plate, and the rotation axis of the baffle is parallel to the length direction of the second side plate and the fourth side plate; the side of the first side plate and / or the side of the third side plate is provided with a driving mechanism for driving the baffle to open and close. The driving mechanism is located outside the material frame. The driving mechanism includes a driving plate and a cylinder. One end of the driving plate is connected to the rotation axis, and the other end of the driving plate is rotatably connected to the cylinder rod of the cylinder. When the cylinder rod of the cylinder is actuated, the driving plate can drive the rotation axis to rotate, so that the baffle opens or closes.

[0018] Preferably, the cylinder extends in the vertical direction, the cylinder body is detachably fixed to the material frame, the end of the cylinder rod is connected to a horizontally extending adapter plate, the two ends of the adapter plate are provided with elongated grooves extending in the horizontal direction, the end of the drive plate away from the rotating shaft is connected to a pin, and the pin is rotatably and slidably inserted into the elongated groove.

[0019] Due to the implementation of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0020] Existing bag opening machines, due to the fact that most cotton leveling rollers consist of a roller body and a row of leveling teeth mounted on the roller body, operate under positive pressure inside the machine housing. This positive pressure causes floating fibers within the housing to seep into poorly sealed gaps, making it easy for fibers to become entangled between the journals on both sides of the leveling roller and the machine wall panels. This increases additional friction and motor load, and if not cleaned promptly, the leveling roller can become jammed by tightly wrapped fibers, potentially burning out the drive motor. Simultaneously, the weighing device includes a hopper and weighing sensors on both sides of the hopper. The weighing sensors support the hopper and perform weighing. Because the fiber distribution within the hopper is uneven, when it shifts to one side, it causes the hopper to tilt accordingly, resulting in a deviation between the weighed weight and the actual value. This leads to poor weighing stability, and when multiple batches of material are fed, if all the fibers in the hopper are biased to one side, this deviation will be magnified, ultimately affecting the quality of the textiles. This application addresses these shortcomings by providing an anti-entanglement feature. The structure of the cotton leveling roller and multi-point support weighing type bale opener is designed as a whole, cleverly solving the shortcomings of existing technologies. After the bale opener is installed, the material enters the cotton leveling chamber from the cotton inlet unit, and is leveled by the cotton leveling action formed by the transmission and the cotton leveling roller. At the same time, the leveled material enters the three-point weighing structure for weighing. Therefore, this invention has two advantages. First, when the roller rotates, the air in the fan-shaped area is squeezed out by the wind baffle strip, forming a centrifugal wind flowing from the inside to the outside to prevent fibers from entering and achieve the function of preventing fiber entanglement. Even if fibers fall into the fan-shaped area or onto the wind baffle strip due to machine stoppage, they are not easy to form entanglement and can be carried away by the centrifugal wind when the machine is restarted, resulting in low long-term operating costs. Second, the three-point weighing structure provides stable support for the hopper box. Even if the fiber distribution in the hopper box is uneven, it will not cause the hopper box to tilt. During weighing, the weighing result is not affected by the fiber distribution in the hopper, resulting in high accuracy and good weighing stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the anti-winding cotton leveling roller and the multi-point support weighing type pack opener in this embodiment;

[0022] Figure 2 for Figure 1 Front view diagram;

[0023] Figure 3 for Figure 2 A top-down view;

[0024] Figure 4 for Figure 3 Schematic diagram of the sectional view along the central AA direction;

[0025] Figure 5 for Figure 1 3D schematic diagram of the cotton leveling roller;

[0026] Figure 6 yes Figure 5Front view diagram;

[0027] Figure 7 yes Figure 6 A diagram showing the view from the right.

[0028] Figure 8 yes Figure 7 Cross-sectional view along the middle BB direction;

[0029] Figure 9 for Figure 1 A cross-sectional view along the CC direction of another type of cotton leveling roller structure;

[0030] Figure 10 for Figure 1 A three-dimensional schematic diagram of the weighing unit;

[0031] Figure 11 for Figure 10 A schematic diagram showing the cover after the first side panel is removed;

[0032] Figure 12 for Figure 11 A top-down view;

[0033] Figure 13 yes Figure 12 Cross-sectional view along the DD direction (enlarged);

[0034] Figure 14 yes Figure 12 Enlarged cross-sectional view along the EE direction;

[0035] Figure 15 yes Figure 11 A 3D view with the beams and columns hidden (enlarged);

[0036] Among them: ①, cotton inlet unit; 1A, feeding and conveying mechanism; 1B, transfer and conveying mechanism;

[0037] ②, Cotton leveling unit; Y, Cotton leveling transmission mechanism; y1, Circular transmission belt; y2, Frame rod; y3, Cotton leveling needle; Q, Cotton leveling chamber; q1, Material storage chamber; q10, Material receiving hopper; q2, Material leveling chamber; F, Auxiliary cotton roller; f1, Auxiliary roller body; f2, Needle punch; 1, Cotton leveling roller; 10, Roller body; 11, Roller body; 111, Threaded hole; 112, Bolt; 12, Shaft end; 121, First air inlet; 122, Second air inlet; 13, Concave arc-shaped transition section; 14, Windproof strip; 141, Countersunk hole;

[0038] 142. Beveled surface; 15. Fan-shaped area; 20. Cotton distribution toothed plate; 21. Mounting plate; 211. Arc surface; 22. Toothed plate;

[0039] 221. Serrated surface; 30. Equipment wall panel;

[0040] ③ Weighing unit; s1, crossbeam; s2, hopper box; s11, first crossbeam; s111, first pad block; s112, first through hole; s12, second crossbeam; s121, second pad block; s122, second through hole; s13, column; s21, first side plate; s211, first connecting plate; s212, first crossbar; s213, first lateral support; s214, first bending part; s22, second side plate; s23, third side plate; s231, second connecting plate; s232, second crossbar; s233. Second lateral support; s24, fourth side plate; s25, baffle; s251, first baffle; s252, second baffle; s253, rotating shaft; s254, rotating shaft; s31, first weighing sensor; s311, first lateral clearance; s312, first longitudinal clearance; s32, second weighing sensor; s322, second longitudinal clearance; s41, drive plate; s411, pin; s42, cylinder; s421, cylinder rod; s422, cylinder body; s423, adapter plate; s424, elongated groove; s50, cover. Detailed Implementation

[0041] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the application will be described in detail below with reference to the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0042] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0047] like Figures 1 to 4 As shown, the anti-winding cotton leveling roller and multi-point support weighing type pack opener involved in this embodiment includes a cotton feeding unit ①, a cotton leveling unit ②, and a weighing unit ③. The cotton feeding unit ① includes a feeding conveyor mechanism 1A and a transfer conveyor mechanism 1B. The cotton leveling unit ② includes a cotton leveling cavity Q, a cotton leveling conveyor mechanism Y located within the cotton leveling cavity Q, and a cotton leveling roller 1. The cotton leveling conveyor mechanism Y is connected to the transfer conveyor mechanism 1B. The weighing unit ③ is connected to the outlet of the cotton leveling cavity Q. Specifically, the feeding conveyor mechanism 1A is composed of a hopper and an upwardly inclined annular conveyor belt. The transfer conveyor mechanism 1B also uses an annular conveyor belt for horizontal transport. The cotton leveling and conveying mechanism Y includes an annular transmission belt y1, multiple support rods y2 extending along the width direction of the annular transmission belt y1 and distributed circumferentially around the annular transmission belt y1, and cotton leveling pins y3 arranged side by side on each of the support rods. The annular transmission belt y1 is arranged from top to bottom and tilted to the left. The cotton inlet unit ① is located on the right side of the lower part of the annular transmission belt y1, and the cotton leveling roller 1 is located on the right side of the upper part of the annular transmission belt y1 and is spaced apart from the cotton leveling pins y3 that are being conveyed.

[0048] The left side of the cotton leveling chamber Q is the material storage chamber q1, and the right side is the material leveling chamber q2. The cotton leveling roller 1 is located in the material leveling chamber q1. The cotton leveling unit ② also includes an auxiliary cotton roller F disposed in the material storage chamber q1 and near the upper part of the annular transmission belt y1. The auxiliary cotton roller F can level the cotton and take the cotton material out from the cotton leveling needle y3 and discharge it into the material storage chamber q1. The cotton material is then discharged from the material storage chamber q1 to the weighing unit for weighing.

[0049] In some specific embodiments, the auxiliary cotton roller F includes an auxiliary roller body and needles f2 distributed circumferentially around the auxiliary roller body f1. Furthermore, it needs to be further explained again in conjunction with... Figure 4 Located on the upper left side of the annular transmission belt y1, it extends vertically. The auxiliary cotton roller F is located on the left side of the vertical extension. At the same time, a receiving hopper q10 is formed at the bottom of the extension. The receiving hopper q10 is connected to the weighing unit. Here, under the premise of maintaining tangential and opposite movement, the unloading can be completed optimally. Combined with the cotton leveling roller, the layout of the left and right and the upper and lower positions can realize that a single cotton leveling roller 1 and the auxiliary cotton roller F can complete the cotton leveling and unloading requirements in one piece.

[0050] Combination Figures 5 to 8 As shown, the cotton leveling roller 1 includes: a roller body 10 and a cotton leveling tooth row 20. The roller body 10 includes a cylindrical roller body 11 and shaft ends 12 coaxially connected to both ends of the roller body 11. The root of the shaft end 12 is connected to the end face of the roller body 11 via a concave arc-shaped transition portion 13 with a gradually increasing diameter. The cotton leveling tooth row 20 is connected to the outer wall of the roller body 11 and extends along the axial direction of the roller body 11. There are six rows of cotton leveling teeth 20 evenly distributed along the axis of the roller body 11. Windbreak strips 14 are detachably connected to both ends of the roller body 11. One end of the windbreak strip 14 contacts the large end of the concave arc-shaped transition portion 13, and the other end extends along the radial direction of the roller body 11. The windbreak strip 14 is located on the roller body 11. The thickness in the axial direction is 0.1-0.3mm smaller than the distance between the end face of the roller body 11 and the equipment wall plate 30. There are three wind deflector strips 14 on each end face of the roller body 11. These three wind deflector strips 14 are evenly distributed along the axis of the roller body 11. A fan-shaped area 15 is formed between adjacent wind deflector strips 14. When the roller body 10 rotates, the air in the fan-shaped area 15 is squeezed out by the wind deflector strips 14, forming a centrifugal wind flowing from the inside to the outside, blocking the fiber from entering and realizing the function of preventing fiber entanglement. Even if the fiber falls into the fan-shaped area 15 or onto the wind deflector strips 14 due to the machine stoppage, it is not easy to form entanglement because there is no force point. When running again, it can be easily carried away by the centrifugal wind, which has a self-cleaning function and low cost for long-term use.

[0051] To avoid the outer end of the wind deflector strip 14 protruding too much and interfering with other components, the outer end face of the wind deflector strip 14 is preferably lower than the outer wall of the roller body 11. However, the distance between the outer end face of the wind deflector strip 14 and the outer wall of the roller body 11 should not be too large, otherwise it will affect the efficiency of the centrifugal wind. Preferably, the distance between the outer end face of the wind deflector strip 14 and the outer wall of the roller body 11 is 0.3-0.5 mm. In this embodiment, the distance is 0.4 mm. In order to maximize the efficiency of the centrifugal wind, in another embodiment, the outer end face of the wind deflector strip 14 is flush with the outer wall of the roller body 11.

[0052] To achieve a detachable connection of the windbreak strip 14, in this embodiment, the surface of the windbreak strip 14 away from the roller body 11 is provided with a plurality of countersunk holes 141 at intervals, and the end face of the roller body 11 is provided with threaded holes 111 corresponding to the countersunk holes 141. The windbreak strip 14 is locked to the end face of the roller body 11 by bolts 112 that pass through the countersunk holes 141 and are threadedly connected to the threaded holes 111.

[0053] To further reduce the stress points on the fibers, in this embodiment, the windbreak strip 14 is provided with a chamfered surface 142 at the end near the concave arc-shaped transition portion 13. The chamfered surface 142 extends obliquely from the outside to the inside towards the roller body 11, and the inclination angle of the chamfered surface 142 (the angle between it and the axial direction of the roller body) is 45°.

[0054] In this embodiment, the projection of the cotton leveling toothed row 20 in the axial direction of the roller body 11 is L-shaped. The cotton leveling toothed row 20 includes a vertically connected mounting plate s21 and toothed plate s22. The mounting plate s21 is connected to the outer wall of the roller body 11. The surface of the mounting plate s21 that contacts the outer wall of the roller body 11 is an arc surface 211. The diameter of the arc surface 211 is equal to the outer diameter of the roller body 11, so that the arc surface 211 fits against the outer wall of the roller body 11. The toothed plate s22 extends in the radial direction of the roller body 11. The end face of the toothed plate s22 away from the roller body is a sawtooth surface 221.

[0055] like Figure 9 As shown, the designed cotton leveling roller 1 is basically the same, except that, in order to increase the efficiency of centrifugal air, a first air supply hole 121 extending along the axial direction of the roller body 11 is opened at the center of the end face of the shaft end 12. The first air supply hole 121 is a blind hole. A second air supply hole 122 extending along the radial direction of the roller body 11 is opened on the outer wall of the root of the shaft end 12. The second air supply hole 122 is located between the end face of the roller body 11 and the equipment wall plate 30. The second air supply hole 122 is connected to the first air supply hole 121 to form an air supply channel. The air pressure in the air supply channel is higher than the air pressure in the box of the unpacking machine (which can be achieved by connecting a compressed air pipe to the opening of the second air supply hole 122 through a rotary joint).

[0056] Furthermore, there are multiple second air supply holes 122. In the circumferential direction of the roller body 10, a portion of the second air supply holes 122 are flush with the wind deflector strip 14, and another portion of the second air supply holes 122 are staggered with the wind deflector strip 14. When the second air supply holes 122 are staggered with the wind deflector strip 14, in the circumferential direction of the roller body 10, the second air supply holes 122 are located in the middle of adjacent wind deflector strips 14.

[0057] Combination Figures 10 to 15 As shown, the weighing unit ③ includes a crossbeam s1 and a hopper box s2. The crossbeam s1 includes a first crossbeam s11 and a second crossbeam s12 arranged in parallel at intervals. The hopper box s2 is suspended below the first crossbeam s11 and the second crossbeam s12 by a weighing assembly. The hopper box s2 includes a material frame and a baffle s25. The material frame is formed by a first side plate s21, a second side plate s22, a third side plate s23, and a fourth side plate s24 connected vertically in sequence. The baffle s25 is closably connected to the bottom of the material frame and is used to open or close. The bottom of the closed material frame is open. The weighing assembly includes a first weighing sensor S31 and a second weighing sensor S32. The first weighing sensor S31 is located between the first crossbeam S11 and the first side plate S21. There are two first weighing sensors S32 located at both ends of the first side plate S21 along its length. The second weighing sensor S32 is located between the second crossbeam S12 and the third side plate S23, with the second weighing sensor S32 located in the middle of the third side plate S23 along its length, thus forming a three-point weighing structure. The advantage of this arrangement is that a stable support surface can be formed through the three-point weighing structure, thereby providing stable support for the hopper box. Even if the fiber distribution in the hopper box is uneven, it will not cause the hopper box to tilt. During weighing, the weighing result is not affected by the fiber distribution in the hopper, resulting in high accuracy and good weighing stability.

[0058] To enhance weighing stability, in this embodiment, the first weighing sensor s31 and the first side plate s21 make surface contact, and the second weighing sensor s32 and the third side plate s23 make surface contact. The contact surfaces of the first weighing sensor s31 and the first side plate s21, and the contact surfaces of the second weighing sensor s32 and the third side plate s23 are located on the same horizontal plane. In other embodiments, the first weighing sensor s31 and the first side plate s21 make point contact, and the contact surfaces of the second weighing sensor s32 and the third side plate s23 are... The contact can be point contact or surface contact, with the contact point between the first weighing sensor s31 and the first side plate s21, and the contact point or contact surface between the second weighing sensor s32 and the third side plate s23 located on the same horizontal plane; or, the contact between the first weighing sensor s31 and the first side plate s21 is surface contact, and the contact between the second weighing sensor s32 and the third side plate s23 is point contact, with the contact surface between the first weighing sensor s31 and the first side plate s21, and the contact point between the second weighing sensor s32 and the third side plate s23 located on the same horizontal plane.

[0059] Specifically, in this embodiment, the upper surface of the first crossbeam s11 is provided with a first pad s111 connected to the bottom (lower surface) of the first weighing sensor s31, and a first lateral gap s311 exists between the bottom surface of the first weighing sensor s31 and the upper surface of the first crossbeam s11; the upper surface of the second crossbeam s12 is provided with a second pad s121 connected to the bottom (lower surface) of the second weighing sensor s32, and a second lateral gap exists between the bottom surface of the second weighing sensor s32 and the upper surface of the second crossbeam s12; the first crossbeam s11 is provided with a first through hole s112 extending in the vertical direction, and the top of the first side plate s21 is connected with an upwardly extending first connecting plate s21, the first connecting plate s21 being movably inserted into the first through hole s112, the first connecting plate s21 being located on one side of the first weighing sensor s31, and the side wall of the first weighing sensor s31 being connected to the first connecting plate s121. There is a first longitudinal gap s312 between the two 21. The upper end of the first connecting plate s21 is bent to form a first crossbar s212 parallel to the first crossbeam s11. The first crossbar s212 is connected to the top (upper surface) of the first weighing sensor s31. The second crossbeam s12 is provided with a second through hole s122 extending in the vertical direction. The top of the third side plate s23 is connected to an upwardly extending second connecting plate s231. The second connecting plate s231 is movably inserted into the second through hole 122. The second connecting plate s231 is located on one side of the second weighing sensor s32. There is a second longitudinal gap s322 between the side wall of the second weighing sensor s32 and the second connecting plate s231. The upper end of the second connecting plate s231 is bent to form a second crossbar s232 parallel to the second crossbeam s12. The second crossbar s232 is connected to the top (upper surface) of the second weighing sensor s32.

[0060] To facilitate connection, the side wall of the first side plate s21 is provided with a first lateral support s213, and the lower end of the first connecting plate s21 is vertically bent to form a first bent portion s214, which is connected to the top surface of the first lateral support s213; the side wall of the third side plate s23 is provided with a second lateral support s233, and the lower end of the second connecting plate s231 is vertically bent to form a second bent portion (not shown in the figure), which is connected to the top surface of the second lateral support s233.

[0061] In this embodiment, the baffle s25 includes a first baffle s251 and a second baffle s252. The first baffle s251 is rotatably connected to the bottom of the second side plate s22, and the rotation axis 253 of the first baffle s251 is parallel to the length direction of the second side plate s22. The second baffle s252 is rotatably connected to the bottom of the fourth side plate s24, and the rotation axis s254 of the second baffle s252 is parallel to the length direction of the fourth side plate s24.

[0062] To facilitate the opening and closing of the baffle s25, in this embodiment, the sides of the first side plate s21 and the third side plate s23 are provided with driving mechanisms for driving the baffle s25 to open and close. The driving mechanism is located outside the material frame and includes a driving plate s41 and a cylinder s42. There are two driving plates s41. One end of one driving plate s41 is connected to the rotation shaft of the first baffle s251, and the other end is rotatably connected to the cylinder rod s421 of the cylinder s42. One end of the other driving plate s41 is connected to the rotation shaft of the second baffle s252, and the other end is rotatably connected to the cylinder rod s421 of the cylinder s42. When the cylinder rod s421 of the cylinder s42 is activated, the two driving plates s41 can drive the rotation shafts of the first baffle s251 and the second baffle s252 to rotate synchronously, so that the baffle s25 opens or closes. This synchronous rotation means that the rotation directions are opposite and the rotation speeds are the same.

[0063] Furthermore, the cylinder s42 extends in the vertical direction, and the cylinder body s422 of the cylinder s42 is detachably fixed on the material frame. The end of the cylinder rod s421 of the cylinder s42 is connected to a horizontally extending adapter plate s423. Both ends of the adapter plate s423 are provided with elongated slots s424 extending in the horizontal direction. The end of the drive plate s41 away from the rotation axis of the baffle s25 is connected to a pin s411. The pin s411 is rotatably and slidably inserted into the elongated slot s424.

[0064] To prevent fiber entanglement, the outer surfaces of the first side plate s21 and the third side plate s23 are also provided with a cover 50 for covering the drive mechanism.

[0065] To achieve good support, in this embodiment, the weighing hopper box for the unpacking machine with good weighing stability also includes a column s13 extending in the vertical direction. The column s13 is connected to both ends of the first crossbeam s11 and the second crossbeam s12 and is used to support the first crossbeam s11 and the second crossbeam s12.

[0066] The present invention has been described in detail above, with the aim of enabling those skilled in the art to understand and implement the invention. However, this description should not be construed as limiting the scope of protection of the invention. All equivalent changes or modifications made in accordance with the spirit and essence of the invention should be included within the scope of protection of the invention.

Claims

1. A cotton feeding unit, a cotton leveling roller with multi-point support and a weighing type, comprising a cotton feeding unit, a cotton leveling unit, and a weighing unit, wherein the cotton feeding unit includes a feeding conveying mechanism and a transfer conveying mechanism, the cotton leveling unit includes a cotton leveling chamber, a cotton leveling conveying mechanism located within the cotton leveling chamber, and a cotton leveling roller, wherein the cotton leveling conveying mechanism is connected to the transfer conveying mechanism, and the weighing unit is connected to the outlet of the cotton leveling chamber, characterized in that: The cotton leveling roller includes a roller body and a cotton leveling toothed rack. The roller body includes a cylindrical roller body and shaft ends coaxially connected to both ends of the roller body. The root of the shaft end is connected to the end face of the roller body through a concave arc-shaped transition section with a gradually increasing diameter. Wind-blocking strips are detachably connected to both ends of the roller body. One end of each wind-blocking strip contacts the larger end of the concave arc-shaped transition section, and the other end extends radially along the roller body. The thickness of the wind-blocking strip in the axial direction of the roller body is 0.1-0.3 mm smaller than the distance between the end face of the roller body and the equipment wall plate. Multiple wind-blocking strips are evenly distributed along the axis of the roller body, forming a fan-shaped area between adjacent strips. When the roller body rotates, air within the fan-shaped area is squeezed out by the wind-blocking strips, forming a centrifugal wind flowing from the inside out, blocking fibers from entering. The wind-blocking strips are located near the concave arc-shaped transition section. The end has a beveled surface that extends obliquely from the outside to the inside towards the roller body; the cotton-leveling tooth row is connected to the outer wall of the roller body and extends along the axial direction of the roller body. There are multiple rows of cotton-leveling tooth rows, which are evenly distributed along the axis of the roller body. Each wind-blocking strip is located between adjacent cotton-leveling tooth rows, and the number of cotton-leveling tooth rows located between each pair of adjacent wind-blocking strips is equal; a first air-feeding hole extending along the axial direction of the roller body is opened at the center of the end face of the shaft end. The first air-feeding hole is a blind hole, and a section is opened on the outer wall of the root of the shaft end. A second air supply hole extends radially along the roller body and is located between the end face of the roller body and the equipment wall panel. The second air supply hole is connected to the first air supply hole to form an air supply channel. The air pressure in the air supply channel is higher than the air pressure inside the unpacking machine box. There are multiple second air supply holes. In the circumferential direction of the roller body, the second air supply holes are flush with and / or staggered with the wind baffle strips. When the second air supply holes are staggered with the wind baffle strips, the second air supply hole is located in the middle of the adjacent wind baffle strips. The weighing unit includes a crossbeam and a weighing hopper. The crossbeam includes a first crossbeam and a second crossbeam arranged in parallel and spaced apart. The weighing hopper is suspended below the first crossbeam and the second crossbeam by a weighing assembly. The weighing hopper includes a material frame and a baffle. The material frame is formed by a first side plate, a second side plate, a third side plate, and a fourth side plate connected vertically in sequence. The baffle is connected to the bottom of the material frame in an openable and closable manner, and is used to open or close the bottom opening of the material frame. The weighing assembly includes a first weighing sensor and a second weighing sensor. The first weighing sensor is disposed between the first crossbeam and the first side plate. There are two first weighing sensors located at both ends of the first side plate along its length. The second weighing sensor is disposed between the second crossbeam and the third side plate. The second weighing sensor is located in the middle of the third side plate along its length, so that the weighing assembly forms a three-point weighing structure.

2. The packing machine with anti-winding cotton leveling roller and multi-point support weighing as described in claim 1, characterized in that: The cotton evenly conveying mechanism includes an annular drive belt, multiple support rods extending along the width of the annular drive belt and distributed circumferentially around the annular drive belt, and cotton evenly needles arranged side by side on each of the support rods. The annular drive belt is arranged from bottom to top and tilted to the left. The cotton inlet unit is located on the right side of the lower part of the annular drive belt, and the cotton evenly roller is located on the right side of the upper part of the annular drive belt and is spaced apart from the cotton evenly needles that the conveying mechanism passes through.

3. The packing machine with anti-winding cotton leveling roller and multi-point support weighing as described in claim 2, characterized in that: The left side of the cotton leveling chamber is the material storage chamber, and the right side is the material leveling chamber. The cotton leveling roller is located in the material leveling chamber. The cotton leveling unit also includes an auxiliary cotton roller disposed in the material storage chamber and close to the upper part of the annular transmission belt. The auxiliary cotton roller can level the cotton and take the cotton material out from the cotton leveling needle and discharge it into the material storage chamber. The material is then discharged from the material storage chamber to the weighing unit for weighing.

4. The packing machine with anti-winding cotton leveling roller and multi-point support weighing as described in claim 3, characterized in that: The auxiliary cotton roller includes an auxiliary roller body and needles distributed around the circumference of the auxiliary roller body.

5. The packing machine with anti-winding cotton leveling roller and multi-point support weighing as described in claim 1, characterized in that: The outer end face of the windbreak strip is lower than or flush with the outer wall of the roller body; and / or, when the outer end face of the windbreak strip is lower than the outer wall of the roller body, the distance between the outer end face of the windbreak strip and the outer wall of the roller body is not greater than 0.5 mm; and / or, the surface of the windbreak strip away from the roller body is provided with a plurality of countersunk holes at intervals, the end face of the roller body is provided with threaded holes corresponding one-to-one with the countersunk holes, and the windbreak strip is locked to the end face of the roller body by bolts passing through the countersunk holes and threadedly connected to the threaded holes.

6. The packing machine with anti-winding cotton leveling roller and multi-point support weighing as described in claim 1, characterized in that: The projection of the cotton-leveling toothed array on the axial direction of the roller body is L-shaped. The cotton-leveling toothed array includes a vertically connected mounting plate and a toothed plate. The mounting plate is connected to the outer wall of the roller body, and the toothed plate extends along the radial direction of the roller body. The end face of the toothed plate away from the roller body is a sawtooth surface. The surface of the mounting plate that contacts the outer wall of the roller body is an arc surface. The diameter of the arc surface is equal to the outer diameter of the roller body, so that the arc surface fits snugly against the outer wall of the roller body.

7. The packing machine with anti-winding cotton leveling roller and multi-point support weighing as described in claim 1, characterized in that: The first weighing sensor has point contact with the first side plate, and the second weighing sensor has point contact or surface contact with the third side plate. The contact point between the first weighing sensor and the first side plate and the contact point or contact surface between the second weighing sensor and the third side plate are located on the same horizontal plane; or, the first weighing sensor has surface contact with the first side plate, and the second weighing sensor has point contact or surface contact with the third side plate. The contact surface between the first weighing sensor and the first side plate and the contact point or contact surface between the second weighing sensor and the third side plate are located on the same horizontal plane.

8. The packing machine with anti-winding cotton leveling roller and multi-point support weighing as described in claim 1, characterized in that: The baffle is rotatably connected to the bottom of the second side plate and / or the fourth side plate, and the rotation axis of the baffle is parallel to the length direction of the second side plate and the fourth side plate. The side of the first side plate and / or the side of the third side plate is provided with a driving mechanism for driving the baffle to open and close. The driving mechanism is located outside the material frame. The driving mechanism includes a driving plate and a cylinder. One end of the driving plate is connected to the rotation axis, and the other end of the driving plate is rotatably connected to the cylinder rod of the cylinder. When the cylinder rod of the cylinder is actuated, the driving plate can drive the rotation axis to rotate, so that the baffle opens or closes.

9. The packing machine with anti-winding cotton leveling roller and multi-point support weighing as described in claim 8, characterized in that: The cylinder extends vertically, and the cylinder body is detachably fixed to the material frame. The end of the cylinder rod is connected to a horizontally extending adapter plate. Both ends of the adapter plate are provided with elongated slots extending horizontally. The end of the drive plate away from the rotating shaft is connected to a pin, which is rotatably and slidably inserted into the elongated slot.

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