Seed cotton bale sampling device

Abstract

The invention provides a seed cotton bale sampling device, which relates to the technical field of cotton sampling, and comprises a sampling mechanism, a sample box and a negative pressure mechanism, the sampling mechanism comprises a shell, a rotating part, a cotton doffing part and a driving part, the driving part is in transmission connection with the rotating part, the driving part is used for driving the rotating part to rotate relative to the shell so as to bring out cotton balls in the seed cotton bale, and the cotton doffing part is used for separating the cotton balls brought out by the rotating part from the rotating part; the sample box is provided with a sample cavity, and the sample cavity is used for containing cotton balls separated from the rotating part and can weigh the contained cotton balls; the negative pressure mechanism comprises a negative pressure generating mechanism and a negative pressure pipeline, the negative pressure generating mechanism is used for enabling the sample cavity to have negative pressure, one end of the negative pressure pipeline is communicated with the sample cavity, the other end of the negative pressure pipeline is close to the cotton doffing piece, and cotton balls separated from the rotating piece can be sucked into the sample cavity; according to the seed cotton bale sampling device provided by the invention, the sampling efficiency, the sampling precision and the sample integrity are improved.

Description

Technical Field

[0001] The invention relates to the technical field of cotton sampling, and in particular to a seed cotton bale sampling device. Background Art

[0002] As an important raw material for the textile industry, cotton is not only a strategic material related to the national economy, but also one of the world's most important bulk agricultural products. The advantage of cotton picking machines is their high efficiency, but their picking is not as precise as manual labor, resulting in poor picking quality. The most important criterion for judging seed cotton quality is the trash content, which is generally directly related to the price of seed cotton and subsequent processing costs. With the implementation of the cotton notarization and inspection system, cotton processing companies are constantly improving their requirements for cotton quality indicators, and the requirements for cotton have shifted from yield to quality. At this time, sampling and testing of seed cotton is particularly important, because it can reflect the overall harvest quality of cotton, facilitate the adjustment of subsequent processing technology, save costs, and provide certain reference data for the cotton processing industry.

[0003] The detection of cotton indicators not only affects multiple links such as cotton storage, transportation, processing technology and textile use, but is also an important factor affecting cotton trade settlement. With the advancement of science and technology, the cotton industry has entered the information and intelligent era. The development of cotton detection technology will surely be faster and more accurate, and will develop towards intelligence, automation and precision. The rapid development of seed cotton detection is in sharp contrast to the slow development of the sampling link. The sampling link before detection has a low degree of mechanization and mostly relies on manual collection, which has low collection efficiency. There is a lack of design of targeted sampling devices for seed cotton packaging, and the existing designs have certain limitations in sampling accuracy, sample protection and sampling efficiency. Summary of the Invention

[0004] In view of this, the object of the present invention is to provide a seed cotton bale sampling device to solve the problems existing in the above-mentioned prior art and improve sampling efficiency, sampling accuracy and sample integrity.

[0005] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0006] The present invention provides a seed cotton bale sampling device, comprising a sampling mechanism, a sample box and a negative pressure mechanism; the sampling mechanism comprises a shell, a rotating member, a cotton doffing member and a driving member, the driving member is transmission-connected to the rotating member, the rotating member is movably arranged on the shell and is used for contacting the seed cotton bale, the cotton doffing member is placed on one side of the rotating member and is connected to the shell, the driving member is used for driving the rotating member to rotate relative to the shell so as to be able to bring out cotton balls in the seed cotton bale, and the cotton doffing member is used to separate the cotton balls brought out by the rotating member from the rotating member; the sample box has a sample cavity, the sample cavity is used to hold cotton balls detached from the rotating member and can weigh the held cotton balls; the negative pressure mechanism comprises a negative pressure generating mechanism and a negative pressure pipeline, the negative pressure generating mechanism is used to make the sample cavity have negative pressure, one end of the negative pressure pipeline is connected to the sample cavity, and the other end is close to the cotton doffing member, and can suck the cotton balls detached from the rotating member into the sample cavity.

[0007] Preferably, the rotating part is configured as a sampling roller, the sampling roller is rotatably connected to the shell, and at least one sampling needle is distributed on the outer wall of the sampling roller; the driving part is transmission-connected to the sampling roller, and is used to drive the sampling roller to drive the sampling needle to rotate synchronously, and bring out the cotton balls in the cotton bag through the sampling needle.

[0008] Preferably, the outer wall of the sampling roller is provided with a plurality of the sampling needles, and the plurality of the sampling needles are distributed along the axial direction and / or circumferential direction of the sampling roller.

[0009] Preferably, the doffer is arranged on the side of the rotating part away from the seed cotton bag; the doffer includes a doffer plate connected to the shell, and the upper edge of the doffer is provided with a doffer groove running through the thickness of the doffer plate, and the doffer groove is arranged opposite to the sampling needle, and the doffer groove can separate the cotton balls on the sampling needle during the rotation of the sampling needle; the area of ​​the doffer plate away from the rotating part is connected to one end of the negative pressure pipeline through the shell.

[0010] Preferably, the doffer plate is movable relative to the housing so as to adjust its relative position to the rotating member.

[0011] Preferably, the sample box also includes a weighing component and a display component. The sample box is provided with a sampling door capable of closing or opening the sample cavity. The sample box is also provided with an observation window. The weighing component is arranged at the bottom of the sample cavity and is used to weigh the cotton ball entering the sample cavity; the display component is arranged on the outer wall of the sample cavity, and the display component is communicated with the weighing component and is used to display weight information.

[0012] Preferably, the negative pressure generating mechanism includes a negative pressure box and a negative pressure generating component, the negative pressure box is arranged on one side of the sample box, the negative pressure generating component is arranged inside the negative pressure box, the negative pressure box is provided with a switch door that can close or open the inside of the negative pressure box, and a ventilation window is provided on the side wall of the negative pressure box; the negative pressure generating component is connected to the sample cavity and is used to create negative pressure in the sample cavity.

[0013] Preferably, it further comprises a power supply component, which is arranged in the negative pressure box. The power supply component is electrically connected to the sampling mechanism, the sample box and the negative pressure generating mechanism and can provide the required electrical energy.

[0014] Preferably, a hand-held portion is provided on the housing.

[0015] Preferably, it further comprises a walking mechanism, the sample box and the negative pressure generating mechanism are arranged on the walking mechanism, and the walking mechanism can adjust and fix the positions of the sample box and the negative pressure generating mechanism.

[0016] Compared with the prior art, the present invention has achieved the following technical effects:

[0017] The seed cotton bale sampling device provided by the present invention has a method in which, when the rotating part of the sampling mechanism approaches the seed cotton bale, the driving part can drive the rotating part to rotate, and the cotton balls pressed in the seed cotton bale are pulled out through the rotating part. Compared with manually hooking and pulling cotton samples, the rotary cotton sampling is not easy to tear the cotton ball fibers apart, thereby improving the integrity of the sample and being friendly to the subsequent detection link; the cotton ball removal part can separate the cotton balls brought out by the rotating part, and under the negative pressure action of the negative pressure mechanism, the cotton balls brought out are sucked into the sample cavity from the cotton ball removal part through the negative pressure pipeline. Due to the assistance of the negative pressure environment, the entire cotton removal process will be smoother, and the occurrence of entanglement will be reduced. The negative pressure environment and mechanical stripping form a synergistic effect, effectively reducing the fiber residual rate, optimizing the continuity of the cotton removal operation, thereby significantly improving the operation stability and operation reliability of the equipment; the collected cotton samples are dropped on the sample cavity through the combined effect of sampling and negative pressure, and the sample cavity can weigh the samples in real time, which is convenient for realizing quantitative sampling in the sampling link. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is an overall schematic diagram of the seed cotton bale sampling device provided in Example 1 of the present invention;

[0020] Figure 2 A schematic diagram of the internal structure of the sampling mechanism provided in Example 1 of the present invention;

[0021] Figure 3 A schematic diagram of the cooperation between the rotating member and the doffing member provided in the first embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the sample box and negative pressure mechanism and their coordination provided in the first embodiment of the present invention;

[0023] Figure 5 A schematic top view of the interior of the sample box and the negative pressure mechanism provided in the first embodiment of the present invention;

[0024] Figure 6 A schematic diagram of the interior of a sample chamber provided in Example 1 of the present invention;

[0025] Figure 7 This is a flow chart of a sampling method for a seed cotton bale sampling device provided in Example 2 of the present invention.

[0026] In the picture:

[0027] 1-sampling mechanism; 11-housing; 111-mounting slot; 12-rotating member; 121-sampling roller; 122-sampling needle; 123-rotating shaft; 124-rolling bearing; 125-spacer; 13-doffer; 131-doffer plate; 132-doffer slot; 133-mounting plate; 14-driving member; 141-synchronous pulley; 142-synchronous belt; 143-brushless reduction motor; 144-controller; 145-flange plate; 146-flange adapter plate; 15-handheld unit;

[0028] 2-sample box; 21-sample chamber; 22-weighing component; 221-weighing support plate; 222-weighing sensor; 23-display component; 24-sampling door; 25-winding reel; 26-observation window;

[0029] 3-negative pressure mechanism; 31-negative pressure generating mechanism; 311-negative pressure box; 312-negative pressure generating element; 313-door switch; 314-ventilation window; 32-negative pressure pipeline;

[0030] 4- Power supply components;

[0031] 5- Walking mechanism; DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] The object of the present invention is to provide a seed cotton bale sampling device to solve the problems existing in the above-mentioned prior art and improve sampling efficiency, sampling accuracy and sample integrity.

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Example 1

[0036] This embodiment provides a seed cotton bale sampling device, see Figures 1-6 , including a sampling mechanism 1, a sample box 2 and a negative pressure mechanism 3; the sampling mechanism 1 includes a shell 11, a rotating member 12, a cotton doffing member 13 and a driving member 14, the driving member 14 is connected to the rotating member 12 by transmission, the rotating member 12 is movably arranged on the shell 11 and is used to contact the seed cotton bag, the cotton doffing member 13 is placed on one side of the rotating member 12 and is connected to the shell 11, the driving member 14 is used to drive the rotating member 12 to rotate relative to the shell 11 so as to be able to take out the cotton balls in the seed cotton bag, and the cotton doffing member 13 is used to The cotton balls brought out by the rotating part 12 are separated from the rotating part 12; the sample box 2 has a sample cavity 21, which is used to hold the cotton balls separated from the rotating part 12 and can weigh the contained cotton balls; the negative pressure mechanism 3 includes a negative pressure generating mechanism 31 and a negative pressure pipeline 32, the negative pressure generating mechanism 31 is used to make the sample cavity 21 have a negative pressure, one end of the negative pressure pipeline 32 is connected to the sample cavity 21, and the other end is close to the cotton doffing part 13, and can suck the cotton balls detached from the rotating part 12 into the sample cavity 21.

[0037] Among them, when the rotating part 12 of the sampling mechanism 1 is close to the seed cotton bale, the driving part 14 can drive the rotating part 12 to rotate, and the cotton balls pressed in the seed cotton bale are pulled out by the rotating part. Compared with manual hooking and pulling of cotton samples, the rotary cotton sampling is not easy to tear the cotton ball fibers, which improves the integrity of the sample and is friendly to the subsequent detection link; the cotton ball brought out by the rotating part 12 can be separated, and under the negative pressure of the negative pressure mechanism 3, the cotton balls brought out are sucked into the sample chamber 21 from the cotton ball part 13 through the negative pressure pipeline 32. Due to the assistance of the negative pressure environment, the entire cotton removal process will be smoother, reducing the occurrence of entanglement. The negative pressure environment and mechanical stripping form a synergistic effect, effectively reducing the fiber residue rate, optimizing the continuity of the cotton removal operation, and thus significantly improving the equipment operation stability and operation reliability; the collected cotton samples are dropped on the sample chamber 21 through the combined effect of sampling and negative pressure. The sample chamber 21 can weigh the samples in real time, which is convenient for realizing automatic quantitative sampling in the sampling link.

[0038] Among the optional solutions of this embodiment, it is more preferred to refer to Figure 2 and Figure 3 The rotating member 12 is configured as a sampling roller 121, which is rotatably connected to the housing 11, and at least one sampling needle 122 is distributed on the outer wall of the sampling roller 121; the driving member 14 is transmission-connected to the sampling roller 121, and is used to drive the sampling roller 121 to drive the sampling needle 122 to rotate synchronously, and to bring out the cotton balls in the cotton bale through the sampling needle 122.

[0039] The sampling roller 121 is radially fixed to a rotating shaft 123 via a key, and the rotating shaft is rotatably connected to the housing 11 via a rolling bearing 124. In order to fix the sampling roller 121 and prevent the sampling roller 121 from being entangled by the seed cotton, a spacer 125 is also installed axially between the sampling roller 121 and the housing 11. The sampling roller 121 is placed at the front end of the entire sampling mechanism 1. The driving member 14 is connected to the rotating shaft 123 to drive the rotating shaft 123 to rotate and drive the sampling roller 121 to rotate synchronously. The sampling needle 122 can be set as a hardened steel needle. The main function of the steel needle is to achieve the piercing and combing of the seed cotton. The axial size of the sampling roller 121 is designed according to the size of the seed cotton buds, and the sampling roller size is not too large, with a size of about 60mm. This can ensure that the sampling roller can pick up 2-3 seed cotton buds at a time when sampling seed cotton, avoiding the problem of low efficiency of one-time sampling, and can achieve both rapid batch sampling and portable sampling.

[0040] Among them, the driving member 14 can be set as a synchronous belt transmission mechanism, specifically including a synchronous pulley 141, a synchronous belt 142, a brushless reduction motor 143, a controller 144, a flange plate 145 and a flange adapter plate 146; the rotating shaft 123 axially extends out of the housing 11 at one end and is coaxially fixed with a synchronous pulley 141, and a synchronous belt 142 is attached to the synchronous pulley 141 and is connected to the synchronous pulley 141 on the rear brushless reduction motor 143. The power source of the sampling roller 121 comes from the synchronous pulley 141, and the brushless reduction motor 143 is placed at the rear of the sampling mechanism 1 and is fixedly connected to the housing 11 through the flange plate 145 and the flange adapter plate 146. The synchronous pulley 141 is fixed at the rotating shaft of the brushless reduction motor 143. , the power is transmitted to the sampling roller 121 through the synchronous belt 142, and the transmission ratio of the two synchronous pulleys 141 is 1:1, which converts the traditional linear sampling action into a highly automated rotary sampling action. When the sampling roller 121 is working, the rapid batch sampling of seed cotton samples can be completed; the brushless reduction motor 143 requires a working voltage of 24V when working, and the power comes from the 48V battery on the power supply component 4 after being converted into 24V voltage by the controller 144; the speed of the sampling roller 121 should not be too fast, and it should be determined according to the actual situation. When the speed is suitable, it will reduce the interference with the cotton removal, making the pressure of the cotton removal link smaller, thereby easily reducing the phenomenon of entanglement and hanging cotton, making the entire sampling process smoother.

[0041] In an optional solution of this embodiment, it is more preferred that the outer wall of the sampling roller 121 is provided with multiple sampling needles 122, and the multiple sampling needles 122 are distributed along the axial direction and / or circumferential direction of the sampling roller 121. The outer wall of the sampling roller 121 is provided with multiple sampling needles 122, and the multiple sampling needles 122 are distributed along the axial direction and / or circumferential direction of the sampling roller 121.

[0042] Among them, multiple sampling needles 122 are distributed in the axial and circumferential directions of the sampling roller 121 to improve the sampling efficiency. Multiple sampling needles 122 are staggered in a row of 3 or a row of 2 around the circumference of the sampling roller 121. A row is defined as the axial distribution along the sampling roller 121. The size of the sampling roller 121 is matched to ensure that the sampling roller can take 2-3 seed cotton balls at a time when sampling seed cotton, avoiding the problem of low efficiency of one-time sampling, and can achieve both rapid batch sampling and portable sampling.

[0043] In the optional scheme of this embodiment, it is more preferred that the doffer 13 is arranged on the side of the rotating part 12 away from the seed cotton bale; the doffer 13 includes a doffer plate 131 connected to the shell 11, and a doffer groove 132 is provided on the upper edge of the doffer plate 131 and penetrates the thickness of the doffer plate 131. The doffer groove 132 is arranged opposite to the sampling needle 122, and the doffer groove 132 can separate the cotton balls on the sampling needle 122 during the rotation of the sampling needle 122; the area of ​​the doffer plate 131 away from the rotating part 12 is connected to one end of the negative pressure pipeline 32 through the shell 11.

[0044] Among them, the number of doffer grooves 132 provided on the doffer plate 131 is 5; the 5 doffer grooves 132 correspond to a row of 3 or a row of 2 sampling needles 122 distributed in a staggered manner, and are larger in size than the sampling needles 122; the doffer 13 is arranged on the side of the rotating member 12 away from the seed cotton bag, and the area of ​​the doffer plate 131 on the shell 11 away from the rotating member 12 can be connected and communicated with one end of the negative pressure pipeline 32 by means of a socket; when the sampling needle 122 attached to the sampling roller 121 is connected to the doffer on the doffer plate 131, the sampling needle 122 is connected to the sampling roller 121. When the cotton grooves 132 meet, the size of the cotton doffing groove 132 can be set to gradually decrease from the entry side or the exit side. The entry side is larger, and the sampling needle 122 carries the cotton flowers into the entry side of the cotton doffing groove 132. As the sampling roller 121 rotates, the exit side size becomes smaller, and the cotton flowers wrapped around the sampling roller 121 cannot pass through the cotton doffing groove 132 and are fallen off the sampling roller 121 by the cotton doffing plate 131. At the same time, due to the assistance of the negative pressure environment, the entire cotton doffing process will be smoother, reducing the occurrence of entanglement.

[0045] In an optional solution of this embodiment, it is more preferred that the doffer plate 131 is movable relative to the housing 11 so as to be able to adjust its relative position with the rotating member 12 .

[0046] Among them, the cotton doffing plate 131 is fixedly connected to a mounting plate 133, and the mounting plate 133 is movably connected to the shell 11. A mounting groove 111 is provided on the side wall of the shell 11, and the mounting plate 133 can be slidably connected to the mounting groove 111. Specifically, the position can be adjusted by damping sliding or bolt locking and limiting, and then fixed; the centering mounting groove 111 can be set as an arc groove, which can adjust the relative angle and relative position of the cotton doffing plate 131 and the rotating part 12, thereby improving the flexibility of use.

[0047] Among the optional solutions of this embodiment, it is more preferred to refer to Figure 6The sample box 2 also includes a weighing component 22 and a display component 23. The sample box 2 is provided with a sampling door 24 that can close or open the sample cavity 21. The sample box 2 is also provided with an observation window 26. The weighing component 22 is arranged at the bottom of the sample cavity 21 and is used to weigh the cotton ball entering the sample cavity 21; the display component 23 is arranged on the outer wall of the sample cavity 21, and the display component 23 is communicated with the weighing component 22 and is used to display weight information.

[0048] Among them, the weighing component 22 includes a weighing support plate 221 and a weighing sensor 222. The weighing support plate 221 is arranged at the bottom of the sample chamber 21 for supporting the cotton sample, and the weighing sensor 222 is arranged at the bottom of the weighing support plate 221 for weighing, so as to obtain the weight of the sample; the display component 23 is set as a display screen, which is communicated with the weighing sensor 222, and the weight information is directly displayed through the display component 23, which is convenient for direct observation; the sampling door 24 is connected to the sample box 2 through a hinge, and is opened and closed by a conventional switch handle such as a jump handle, which is convenient for taking out the cotton sample; the observation window 26 is set as tempered glass integrated on the sampling door 24, which ensures strength while facilitating observation of the sampling situation. The connection between the observation window 26 and the sampling door 24 should be sealed to avoid pressure release inside the sample chamber 21.

[0049] In the optional scheme of this embodiment, it is more preferred that the negative pressure generating mechanism 31 includes a negative pressure box 311 and a negative pressure generating component 312, the negative pressure box 311 is arranged on one side of the sample box 2, the negative pressure generating component 312 is arranged in the negative pressure box 311, the negative pressure box 311 is provided with a switch door 313 that can close or open the inside of the negative pressure box 311, and a ventilation window 314 is provided on the side wall of the negative pressure box 311; the negative pressure generating component 312 is connected to the sample chamber 21 and is used to make the sample chamber 21 have negative pressure.

[0050] Among them, the negative pressure generating part 312 is configured to include two negative pressure fans and is arranged in the negative pressure box 311. Two negative pressure ports are set on one side of the sample chamber 21, which are respectively connected to the two negative pressure fans through pipelines. The negative pressure of the sample chamber 21 is achieved by the two negative pressure fans. The negative pressure port of the sample chamber 21 and the cotton inlet are set on different side walls. The cotton enters the sample chamber 21 in a ball shape and falls directly into the sample chamber 21. A filter can be set at the negative pressure port to prevent the cotton from being sucked into the negative pressure fan. The negative pressure box 311 Negative pressure is drawn inside by lateral wind to reduce the impact on weighing and keep it within the error range; the upper side of the negative pressure box 311 and the side wall away from the sample box 2 are both provided with a switch door 313 that is opened and closed by a conventional switch mechanism such as a jump handle, which is convenient for assembly and disassembly, and a winding drum 25 is provided on the upper switch door 313, through which the cables required for the seed cotton bag sampling device can be organized; the ventilation window 314 is set as a shutter, which can meet the ventilation needs of the negative pressure fan and the outside world.

[0051] The negative pressure pipeline 32 is configured as a bellows. By adjusting the length of the bellows, the distance between the sampling mechanism 1 and the negative pressure mechanism 3 of the sample box 2 can be adjusted, thereby improving the sampling flexibility.

[0052] Among the optional solutions of this embodiment, it is more preferred that the seed cotton bale sampling device provided in this embodiment further includes a power supply component 4, which is arranged in the negative pressure box 311. The power supply component 4 is electrically connected to the sampling mechanism 1, the sample box 2 and the negative pressure generating mechanism 31 and can provide the required electrical energy; the power supply component 4 is configured as a battery, which is protected by an openable and closable protective cover, and the protective cover can be fixedly connected to the negative pressure box 311 by means of bolts. The power supply component 4 can meet the electrical energy required by the seed cotton bale sampling device.

[0053] In an optional solution of this embodiment, more preferably, a hand-held portion 15 is provided on the housing 11 , and the hand-held portion 15 is provided with anti-slip grooves, so that an operator can conveniently hold the sampling mechanism 1 to sample the seed cotton bale.

[0054] Among the optional solutions of this embodiment, it is more preferred that the seed cotton bale sampling device provided in this embodiment further includes a walking mechanism 5, and the sample box 2 and the negative pressure generating mechanism 31 are arranged on the walking mechanism 5, and the walking mechanism 5 can adjust and fix the positions of the sample box 2 and the negative pressure generating mechanism 31.

[0055] Among them, the walking mechanism 5 can be set as a walking trolley, and the sample box 2 and the negative pressure mechanism 3 are integrated and arranged side by side on the walking mechanism 5 to facilitate overall movement. All connections of the sample box 2 are equipped with sealing strips to ensure that the sealing of the sample box 2 is good. It is required that when the negative pressure fan is working stably, the negative pressure in the sample box 2 does not change much; the walking trolley is provided with a push handle and multiple walking wheels on the lower side. The walking wheels on the lower side of the push handle are conventional universal wheels that can be locked. The trolley can be locked by stepping down the card wheel, and can be unlocked by lifting the card wheel. When the user holds the trolley handle to turn left or right, the rear wheels can achieve steering.

[0056] In the optional solutions of this embodiment, more preferably, the connection relationship between the device components in the seed cotton bale sampling device provided by this embodiment can be achieved by bolts or welding, or other methods that meet the connection requirements.

[0057] In the optional scheme of this embodiment, it is more preferred that the seed cotton bale sampling device can be controlled as a whole by a control component such as PLC control to realize automatic sampling; the control component is communicatively connected with the sample box 2, the sampling mechanism 1 and the negative pressure mechanism 3, and the weight information of the weighing sensor 222 on the sample box 2 is transmitted to the control component, and the control component controls the sampling mechanism 1 and the negative pressure mechanism 3 to stop action, thereby realizing automatic sampling of the specified weight.

[0058] The working principle of the seed cotton bale sampling device provided in this embodiment is as follows:

[0059] The sampling mechanism 1 is started, and the sampler holds the sampling mechanism 1 and places it on the side of the seed cotton bale. When the sampling mechanism 1 is close to the seed cotton bale, the cotton flowers pressed in the seed cotton bale are pulled out by the rotating part 12 of the sampling mechanism 1 and wrapped around the sampling roller 121. The sampling needle 122 attached to the sampling roller 121 meets the cotton doffing groove 132 on the doffing plate 131. The cotton flowers wrapped around the sampling roller 121 are unable to pass through the cotton doffing groove 132 and are dropped off from the sampling roller 121 by the doffing plate 131. At the same time, due to the assistance of the negative pressure environment, the entire doffing process will be smoother and the occurrence of entanglement will be reduced; the negative pressure fan continues to work, and the dropped cotton flowers are sucked into the weighing support plate 221 in the sample box 2 through the bellows connecting the sampling mechanism 1 and the sample box 2. The weighing support plate 221 displays the quality of the cotton in real time. When the ideal sampling quality is reached, one sampling is completed.

[0060] Example 2

[0061] This embodiment provides a sampling method for the seed cotton bale sampling device in embodiment 1: Figure 7 , including the following steps:

[0062] Fan and motor turned on: the negative pressure fan and brushless reduction motor are turned on, the seed cotton bag sampling device is started, and foreign matter in the bellows can also be cleared;

[0063] The speed of the fan and motor is stable, and sampling is ready: the speed of the negative pressure fan and the brushless reduction motor is stable, so that the sampling roller 121 rotates, and negative pressure appears in the housing 11 under the doffer plate 131;

[0064] Start sampling: The handheld sampling mechanism 1 is placed on the side of the cotton bale, the sampling roller 121 rotates, and the sampling needle pierces the seed cotton buds;

[0065] Start of sample removal: the sampling roller 121 rotates until it contacts the doffer plate 131, and the doffer plate 131 removes the cotton sample;

[0066] Quantitative weighing: The cotton sample falls into the bellows under the action of negative pressure and then falls into the sample box 2 through the bellows;

[0067] End of sampling: Sampling ends when the sample weight reaches the standard.

[0068] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A seed cotton bale sampling device, characterized by: include: A sampling mechanism (1) comprises a housing (11), a rotating member (12), a doffing member (13) and a driving member (14), wherein the driving member (14) is in transmission connection with the rotating member (12), the rotating member (12) is movably arranged on the housing (11) and is used to contact a seed cotton bag, the doffing member (13) is placed on one side of the rotating member (12) and is connected to the housing (11), the driving member (14) is used to drive the rotating member (12) to rotate relative to the housing (11) so as to be able to take out cotton balls in the seed cotton bag, and the doffing member (13) is used to separate the cotton balls taken out by the rotating member (12) from the rotating member (12); A sample box (2) has a sample cavity (21), wherein the sample cavity (21) is used to contain cotton balls separated from the rotating member (12) and is capable of weighing the contained cotton balls; and The negative pressure mechanism (3) comprises a negative pressure generating mechanism (31) and a negative pressure pipeline (32). The negative pressure generating mechanism (31) is used to create a negative pressure in the sample chamber (21). One end of the negative pressure pipeline (32) is connected to the sample chamber (21), and the other end is close to the cotton doffing member (13) and can suck the cotton balls detached from the rotating member (12) into the sample chamber (21).

2. The seed cotton bale sampling device according to claim 1, characterized in that: The rotating member (12) is configured as a sampling roller (121), the sampling roller (121) is rotatably connected to the housing (11), and at least one sampling needle (122) is distributed on the outer wall of the sampling roller (121); the driving member (14) is transmission-connected to the sampling roller (121), and is used to drive the sampling roller (121) to drive the sampling needle (122) to rotate synchronously, and to bring out cotton balls in the cotton bale through the sampling needle (122).

3. The seed cotton bale sampling device according to claim 2, characterized in that: The outer wall of the sampling roller (121) is provided with a plurality of sampling needles (122), and the plurality of sampling needles (122) are distributed along the axial direction and / or the circumferential direction of the sampling roller (121).

4. The seed cotton bale sampling device according to claim 2, characterized in that: The doffing member (13) is arranged on a side of the rotating member (12) away from the seed cotton bale; the doffing member (13) includes a doffing plate (131) connected to the shell (11); a doffing groove (132) is provided on the upper edge of the doffing plate (131) and penetrates the thickness of the doffing plate (131); the doffing groove (132) is arranged opposite to the sampling needle (122); the doffing groove (132) can separate the cotton balls on the sampling needle (122) during the rotation of the sampling needle (122); the area of ​​the doffing plate (131) away from the rotating member (12) is connected to one end of the negative pressure pipeline (32) through the shell (11).

5. The seed cotton bale sampling device according to claim 4, characterized in that: The doffer plate (131) is movable relative to the housing (11) so as to be able to adjust its relative position with the rotating member (12).

6. The seed cotton bale sampling device according to claim 1, characterized in that: The sample box (2) further comprises a weighing component (22) and a display component (23). The sample box (2) is provided with a sampling door (24) capable of closing or opening the sample cavity (21). The sample box (2) is also provided with an observation window (26). The weighing component (22) is arranged at the bottom of the sample cavity (21) and is used to weigh the cotton balls entering the sample cavity (21); the display component (23) is arranged on the outer wall of the sample cavity (21), and the display component (23) is connected to the weighing component (22) in communication and is used to display weight information.

7. The seed cotton bale sampling device according to claim 1, characterized in that: The negative pressure generating mechanism (31) comprises a negative pressure box (311) and a negative pressure generating element (312); the negative pressure box (311) is arranged on one side of the sample box (2); the negative pressure generating element (312) is arranged inside the negative pressure box (311); the negative pressure box (311) is provided with a switch door (313) capable of closing or opening the interior of the negative pressure box (311); and a ventilation window (314) is provided on the side wall of the negative pressure box (311); the negative pressure generating element (312) is communicated with the sample chamber (21) and is used to create negative pressure in the sample chamber (21).

8. The seed cotton bale sampling device according to claim 7, characterized in that: It also includes a power supply component (4) disposed in the negative pressure box (311), wherein the power supply component (4) is electrically connected to the sampling mechanism (1), the sample box (2) and the negative pressure generating mechanism (31) and is capable of providing required electrical energy.

9. The seed cotton bale sampling device according to claim 1, characterized in that: A hand-held portion (15) is provided on the housing (11).

10. The seed cotton bale sampling device according to claim 1, characterized in that: It also includes a walking mechanism (5), on which the sample box (2) and the negative pressure generating mechanism (31) are arranged, and the walking mechanism (5) can adjust and fix the positions of the sample box (2) and the negative pressure generating mechanism (31).

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