An impurity tester for fiber impurities

Abstract

The application belongs to the technical field of fiber detection equipment, and particularly relates to a foreign matter detector for fiber foreign matter detection, which comprises a shell, the shell is a cavity structure, a lifting part is arranged on the top of the shell, an upper hopper is fixedly installed on the top of the shell and communicated with the inner cavity of the shell, a separation assembly is further arranged, the separation assembly separates the fiber body from the foreign matter through airflow, the separation assembly is installed in the inner cavity of the shell, the separation assembly comprises a circulating fan, the circulating fan is installed in the inner cavity of the shell and used for driving the air in the shell to form airflow, and the application can effectively avoid the surface of the adsorption belt being occupied by the foreign matter and the consequence that the adsorption belt cannot work by continuously replacing the adsorption belt, and the continuously replaced adsorption belt can effectively enhance the collection effect on the foreign matter and the accuracy of the detection result.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of fiber detection equipment, and in particular to a foreign matter detector for fiber foreign matter detection. BACKGROUND

[0002] When fibers are used in the textile field, different degrees of impurities may exist in the fibers during collection, transportation and transfer. The impurities contained in the fibers not only have different degrees of influence on the various parts of the textile machine during the textile process, but also have a direct impact on the performance of the silk thread formed by the textile. Therefore, the impurities content of the fibers needs to be detected before the acceptance and use of the fibers.

[0003] In related technologies, seeds, sundries, dust and short fiber fragments adhering to the raw cotton fibers are blown by airflow to separate and collect them from the fibers, and finally the collected sundries are weighed. The weighing result is compared with the total weight of the treated raw cotton, and the impurity content in the raw cotton can be directly obtained to provide a quantitative reference for the selection of raw cotton. Since the impurities contained in the fibers are small in volume and light in weight, and the fibers themselves are easily disturbed by airflow, it is found in actual detection that the dust and short fiber fragments in the airflow are not easy to collect, and a certain amount of fiber body is contained in the collected impurities, resulting in insufficient accuracy of the measurement result.

[0004] In order to enhance the collection effect of the impurities in the fibers and further enhance the detection accuracy of the impurity content in the fibers, the related technologies use structures such as tapes and sheets with adhesive properties to adhere and adsorb the impurities in the airflow, thereby enhancing the collection effect of the impurities. However, on the one hand, the use of adhesive materials to collect impurities still cannot avoid the adsorption and collection of fiber bodies, and in the subsequent weighing process, manual cleaning of the fibers mixed in the impurities is still required. On the other hand, in order to avoid the influence of the fibers on the adsorption of the structures such as tapes and sheets with adhesive properties, the raw cotton fibers need to be fixed when adding the raw cotton fibers, which limits the contact effect of the airflow with the raw cotton fibers, thereby resulting in poor separation effect of the impurities contained in the raw cotton fibers and affecting the accuracy of the detection result.

[0005] The information disclosed in this BACKGROUND section is only for the purpose of enhancing the understanding of the general background of the present application and should not be taken as admitting that the information forms the prior art that is known to those of ordinary skill in the art.

[0006] In view of this, the present application proposes a foreign matter detector for fiber foreign matter detection to solve the above technical problems. SUMMARY

[0007] In order to make up for the deficiencies of the prior art, solve the above technical problems, the application provides a foreign matter detector for fiber foreign matter detection, which is characterized by comprising a combing assembly, wherein the rotating of the combing roller in the combing assembly is used to intercept the raw cotton fibers blown by the airflow, and the intercepted raw cotton fibers are placed in the discharging box, so that the raw cotton fibers are not mixed in the airflow, the raw cotton fibers are not fixedly stored, the contact area between the airflow and the raw cotton fibers is larger, the uniformity of the contact is higher, the separation effect of the airflow on the foreign matter in the raw cotton fibers is better, and the above technical problems are solved.

[0008] The technical scheme adopted by the application to solve the technical problems is that the foreign matter detector for fiber foreign matter detection comprises

[0009] A shell is a hollow structure, and a lifting part is arranged at the top of the shell.

[0010] An upper hopper is fixedly installed at the top of the shell, and the upper hopper is in communication with the inner cavity of the shell.

[0011] Further comprising

[0012] A separation assembly is used to separate the fiber body from the foreign matter by airflow, and the separation assembly is installed in the inner cavity of the shell and comprises

[0013] A circulating fan is installed in the inner cavity of the shell, and the circulating fan is used to drive the air in the shell to form an airflow.

[0014] A flow channel is arranged in the shell, and the flow channel is used to guide the airflow and fix the flow route of the airflow.

[0015] An adsorption belt is installed in the flow channel and is used to intercept the foreign matter in the airflow.

[0016] A combing assembly is used to comb the fibers and enhance the uniform contact between the airflow and the fibers.

[0017] A discharging box is designed to be open on one side of the shell, and the discharging box is installed at the opening of the shell, the combing assembly is installed between the upper hopper and the discharging box, and the discharging box is used to receive the fibers falling from the combing assembly.

[0018] Preferably, the combing assembly comprises

[0019] An electric motor is fixedly installed on the shell, and the output end of the electric motor penetrates through the shell and extends into the inner cavity of the shell.

[0020] The combing roller is fixedly connected with the output end of the electric motor;

[0021] The pressing plate is elastically connected to the mounting frame near the one side of the shell.

[0022] The flow channel is annular and communicates with the circulating fan at two ends, and the inner cavity of the discharging box partially overlaps with the flow channel, and the gas flow direction is opposite to the rotating direction of the electric motor.

[0023] Preferably, the discharging box is fixedly provided with an intercepting net near the side of the combing roller, the intercepting net is located on the flow path of the flow channel, and the discharging box is designed as an opening facing the combing roller.

[0024] Preferably, the combing roller is provided with an adjusting cavity at the end away from the electric motor, the combing teeth are all T-shaped structures, the combing teeth all penetrate through the combing roller and extend into the adjusting cavity, and the end of the combing teeth in the adjusting cavity is elastically connected with the inner wall of the adjusting cavity through a spring.

[0025] Preferably, the shell is fixedly provided with a supporting plate, the supporting plate extends into the adjusting cavity, and the supporting plate is located on the rotating path of the combing teeth.

[0026] Preferably, the shell is provided with a mounting plate, the mounting plate is rotatably connected with two mounting rollers near the inner cavity of the shell, the two ends of the adsorbing belt are wound and fixed on the mounting rollers, the mounting roller near the electric motor extends to the outside, and the mounting rollers are driven by the electric motor through a transmission member.

[0027] Preferably, the transmission member is a rotating shaft and a transmission gear, the rotating shaft is rotatably installed between the mounting roller and the electric motor, the transmission gears are fixedly installed on the rotating shaft, the mounting roller and the output shaft of the electric motor, and the transmission gears are in mesh with each other.

[0028] Preferably, the mounting plate is rotatably provided with a guide rod, and the guide rod is used for guiding the moving path of the adsorbing belt.

[0029] Preferably, the combing teeth are in contact with the adsorbing belt during movement, and the rotating direction of the combing roller is the same as that of the adsorbing belt.

[0030] Preferably, a guide net is fixedly installed in the flow channel, the guide net is located above the adsorbing belt, and the guide net is obliquely arranged.

[0031] The beneficial effects of the present application are as follows:

[0032] 1. The impurity detector for fiber impurity detection, the cotton fiber blown by the airflow is intercepted by the carding assembly, and the intercepted cotton fiber is placed in the discharging box, on the one hand, the cotton fiber can be prevented from being mixed in the airflow, then entering the flow channel and adhering to the adsorption belt in the flow channel, then causing the subsequent need for reprocessing of the adsorption belt, the reprocessing amount is large, and the detection of the impurity is more troublesome, on the other hand, the cotton fiber is stored in a non-fixed manner, in the contact process of the airflow and the cotton fiber, due to the movable effect of the fiber, the contact area of the airflow and the cotton fiber is larger, the uniformity of the contact is higher, and then the separation effect of the airflow on the impurities in the cotton fiber is better.

[0033] 2. The impurity detector for fiber impurity detection, by continuously replacing the adsorption belt, the surface of the adsorption belt is effectively prevented from being occupied by impurities, resulting in the consequence that the adsorption belt cannot function, and the continuously replaced adsorption belt effectively enhances the collection effect of the impurities and the accuracy of the detection result. BRIEF DESCRIPTION OF DRAWINGS

[0034] The application will be further described below with reference to the drawings.

[0035] Figure 1 is the front view of the application;

[0036] Figure 2 is the partial structure diagram of the application;

[0037] Figure 3 is the perspective view of the discharging box;

[0038] Figure 4 is the sectional view of the application;

[0039] Figure 5 is Figure 5 is the local enlarged view of A in the figure;

[0040] In the figure: 1, the shell; 11, the lifting part; 12, the feeding hopper; 13, the pressing plate; 14, the mounting frame; 2, the circulating fan; 21, the flow channel; 22, the adsorption belt; 23, the discharging box; 3, the electric motor; 31, the carding roller; 32, the carding tooth; 4, the interception net; 41, the adjusting cavity; 42, the supporting plate; 5, the mounting plate; 51, the mounting roller; 52, the rotating shaft; 53, the transmission gear; 54, the guide rod; 55, the guide net. DETAILED DESCRIPTION

[0041] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the application will be further described below in combination with specific embodiments.

[0042] As Figures 1 to 5As shown, the impurity detector for fiber impurity detection provided by the present application comprises

[0043] The shell 1 is a hollow structure, and a lifting portion 11 is arranged on the top of the shell 1.

[0044] The upper hopper 12 is fixedly installed on the top of the shell 1, and the upper hopper 12 is in communication with the inner cavity of the shell 1.

[0045] Further comprising

[0046] The separation assembly separates the fiber body from the impurities through air flow, and is installed in the inner cavity of the shell 1.

[0047] The circulating fan 2 is installed in the inner cavity of the shell 1, and is used to drive the air in the shell 1 to form air flow.

[0048] The flow channel 21 is arranged in the shell 1, and is used to guide the air flow and fix the flow route.

[0049] The adsorption belt 22 is installed in the flow channel 21, and is used to intercept the impurities in the air flow.

[0050] The carding assembly is used to card the fiber and enhance the uniform contact between the air flow and the fiber.

[0051] The lower hopper 23 is arranged on one side of the shell 1, and the lower hopper 23 is installed on the opening of the shell 1.

[0052] In the related art, the seeds, impurities, dust, and short fiber fragments adhered to the raw cotton fibers are blown by air flow to separate and collect the seeds, impurities, dust, and short fiber fragments from the fibers, and finally, the collected impurities are weighed, and the weighing result is compared with the total weight of the processed raw cotton to directly obtain the impurity content in the raw cotton, which provides a quantitative reference for the selection of raw cotton.

[0053] In order to enhance the collection effect of impurities in the fiber, and further enhance the detection accuracy of the content of impurities in the fiber, the related technology adopts the structure of belt, sheet and the like with adhesive property to adhere and adsorb the impurities in the airflow, thereby enhancing the collection effect of the impurities. However, on the one hand, the use of adhesive material to collect impurities still cannot avoid the adsorption and collection of the fiber body, and in the subsequent weighing process, manual cleaning of the fiber mixed with impurities is still required. On the other hand, in order to avoid the influence of the fiber on the adsorption of the belt, sheet and the like with adhesive property, the raw cotton fiber needs to be fixed when adding the raw cotton fiber, which limits the contact effect of the airflow with the raw cotton fiber, thereby leading to poor separation effect of the impurities contained in the raw cotton fiber, and affecting the accuracy of the detection result,

[0054] In the present embodiment, when detecting the raw cotton fiber, the raw cotton fiber is weighed by a precise electronic scale, and the weighed raw cotton fiber is placed into the upper hopper 12. Since the inner cavity of the upper hopper 12 is communicated with the inner cavity of the shell 1, at this time the worker manually starts the circulating fan 2. The circulating fan 2 used here is preferably an axial flow fan. Under the action of the circulating fan 2, the circulating fan 2 causes the air in the inner cavity of the shell 1 to flow, thereby forming an airflow in the inner cavity of the shell 1. Under the guidance of the flow channel 21, the airflow flows through the opening of the upper hopper 12 in the inner cavity of the shell 1. Under the action of the airflow and gravity, the fibers in the upper hopper 12 are dispersed along the flow direction of the airflow. At this time, the combing assembly intercepts and disperses the fibers in the airflow. The airflow blows the raw cotton fiber, thereby making the contact between the airflow and the raw cotton fiber more uniform. The airflow entrains the impurities, dust and short fiber fragments in the raw cotton fiber, and flows in the flow channel 21. When the airflow flows through the lifting part 11 of the shell 1 in the flow channel 21, since the lifting part 11 is a structure convenient for holding by hand, the shape of the lifting part 11 is more fitted to the joints of the hand. The flow channel 21 at this position is smooth and has obvious undulations, and the flow cross-sectional area of the flow channel 21 at this position is small. On the one hand, under the influence of the flow area, the contact efficiency between the airflow and the adsorption belt 22 is high. On the other hand, the airflow is disturbed when flowing, thereby making the contact effect between the airflow and the adsorption belt 22 better. The adhesion and adsorption effect of the adsorption belt 22 on the impurities in the airflow is enhanced, thereby enhancing the collection effect of the impurities. In the continuous operation process, the combing assembly places the intercepted raw cotton fiber in the lower hopper 23. After completing the circulation, the adsorption belt 22 is taken out, weighed and treated. According to the weight difference of the adsorption belt 22 before and after use, the content of the impurities can be calculated. By comparing the content of the impurities with the total weight of the raw cotton, the impurity content in the raw cotton can be calculated,

[0055] The original cotton fibers blown by the airflow are intercepted by the carding assembly in the application, and the intercepted original cotton fibers are placed in the discharging box 23. On the one hand, it can avoid that the original cotton fibers are mixed in the airflow in a large amount, and then enter the flow channel 21 and adhere to the adsorption belt 22 in the flow channel 21, and then cause that the adsorption belt 22 needs to be reprocessed, the reprocessing amount is large, and the detection of impurities is more troublesome. On the other hand, the original cotton fibers are stored in a non-fixed manner. In the contact process of the airflow and the original cotton fibers, due to the movable effect of the fibers, the contact area of the airflow and the original cotton fibers is larger, the uniformity of the contact is higher, and then the separation effect of the airflow on the impurities in the original cotton fibers is better.

[0056] As a preferred embodiment of the application, the carding assembly comprises

[0057] The electric motor 3 is fixedly installed on the shell 1, and the output end of the electric motor 3 penetrates through the shell 1 and extends into the inner cavity of the shell 1.

[0058] The carding roller 31 is provided with uniformly distributed card teeth 32 on the surface, the card teeth 32 extend into the inside of the feeding hopper 12, and the carding roller 31 is fixedly connected with the output end of the electric motor 3.

[0059] The pressing plate 13 is elastically connected to the side close to the shell 1 through the spring.

[0060] The flow channel 21 is annular and is in communication with both ends of the circulating fan 2. The inner cavity of the discharging box 23 partially overlaps with the flow channel 21, and the gas flow direction is opposite to the rotation direction of the electric motor 3.

[0061] The embodiment is based on the previous embodiment. By installing the electric motor 3, during the detection of the impurity content of the raw cotton fibers, the electric motor 3 is manually started to drive the combing roller 31 to rotate. The rotating direction of the combing roller 31 is opposite to the flow direction of the airflow. Therefore, the comb teeth 32 on the surface of the combing roller 31 can intercept the raw cotton fibers in the airflow. During the rotation of the combing roller 31, the comb teeth 32 on the combing roller 31 can extend into the upper hopper 12. Therefore, during the rotation of the combing roller 31, the comb teeth 32 can actively tease and pull the raw cotton fibers in the upper hopper 12 and move them into the airflow, thereby making the contact between the airflow and the raw cotton fibers better. At the same time, it can also prevent the problem that the fibers cannot fall into the airflow due to mutual entanglement of the raw cotton fibers. In the upper hopper 12, by setting the mounting bracket 14 and the pressing plate 13, after the raw cotton fibers are placed in the upper hopper 12, the mounting bracket 14 is pushed to make the mounting bracket 14 clamped on the upper hopper 12 from the side. The pressing plate 13 elastically connected to the mounting bracket 14 moves into the upper hopper 12, thereby pushing the raw cotton fibers to move into the inner cavity of the shell 1. In actual application, a rubber sleeve can be wrapped around the spring to prevent the raw cotton fibers from entangling with the spring.

[0062] When the airflow flows in the flow channel 21, under the guidance of the flow channel 21, the airflow enters the inner cavity of the discharging box 23 and contacts the fibers in the inner cavity of the discharging box 23. After flowing through the discharging box 23, the airflow enters the circulating blower 2 again to blow the raw cotton fibers on the combing roller 31. During the circulating blowing process, since the airflow itself only circulates in the inner cavity of the shell 1, it will not introduce impurities from the outside into the inner cavity of the shell 1, thereby reducing the influence of the external environment on the detection result. On the other hand, the airflow continuously contacts the raw cotton fibers during the circulating and reciprocating process, which can effectively enhance the separation effect of the airflow on the impurities in the raw cotton fibers, thereby enhancing the collection effect of the impurities and enhancing the detection accuracy.

[0063] As a preferred embodiment of the present application, the discharging box 23 is fixedly installed with an intercepting net 4 near the side of the combing roller 31. The intercepting net 4 is located on the flow path of the flow channel 21, and the discharging box 23 is designed with an opening opposite to the combing roller 31.

[0064] The embodiment is based on the previous embodiment, and the intercepting net 4 is installed on the side of the feeding box 23 close to the carding roller 31, and the intercepting net 4 is located on the flow path of the flow channel 21, that is, it is consistent with the direction of the air flow extracted by the circulating fan 2. Therefore, in the process of the circulating fan 2 stimulating the flow of the air flow, the air flow enters the inner cavity of the feeding box 23 from the side wall of the feeding box 23, and pushes the raw cotton fibers in the inner cavity of the feeding box 23 to move towards the intercepting net 4. The raw cotton fibers are intercepted by the intercepting net 4, so that the air flow and the raw cotton fibers are separated. In the process of separation, the air flow can separate the impurities with smaller volume in the raw cotton fibers again, thereby enhancing the separation effect of the impurities in the raw cotton fibers. At the same time, the feeding box 23 is designed to be opened at the position opposite to the carding roller 31. In the process of the carding roller 31 rotating, the raw cotton fibers fall into the feeding box 23 under the action of gravity, and the falling raw cotton fibers move towards the intercepting net 4 under the influence of the air flow, thereby completing the collection of the falling raw cotton fibers. After detection is completed, the feeding box 23 is manually pulled to separate the feeding box 23 from the shell 1, so that the raw cotton fibers in the feeding box 23 can be taken out.

[0065] As a preferred embodiment of the present application, the carding roller 31 is provided with an adjusting cavity 41 at the end away from the electric motor 3, the carding teeth 32 are all "T" shaped structures, the carding teeth 32 all penetrate through the carding roller 31 and extend into the adjusting cavity 41, and the end of the carding teeth 32 located in the adjusting cavity 41 is elastically connected to the inner wall of the adjusting cavity 41 by a spring;

[0066] In the embodiment, the electric motor 3 drives the carding roller 31 fixedly connected to the output shaft of the electric motor 3 to rotate when the electric motor 3 is started. The rotating carding roller 31 drives the carding teeth 32 to rotate synchronously. Since the adjusting cavity 41 is formed in the carding roller 31, and the end of the carding teeth 32 located in the adjusting cavity 41 is elastically connected to the carding roller 31 by a spring, the carding teeth 32 on the carding roller 31 have telescopic property during the operation of the carding roller 31. When the carding teeth 32 pull the raw cotton fibers, the telescopic property of the carding teeth 32 can effectively pull the raw cotton fibers. On the one hand, the carding teeth 32 can extend into the hopper 12 as far as possible under the telescopic effect. On the other hand, the telescopic property of the carding teeth 32 can make the carding teeth 32 filter the air flow in the flow channel 21 as far as possible, thereby enhancing the interception effect of the fibers.

[0067] As a preferred embodiment of the present application, the inner wall of the shell 1 is fixedly provided with a supporting plate 42, the supporting plate 42 extends into the adjusting cavity 41, and the supporting plate 42 is located on the rotating path of the carding teeth 32.

[0068] In the embodiment, the support plate 42 is fixedly installed on the inner wall of the shell 1 and can extend into the adjusting cavity 41, so that the support plate 42 can generate a relative rotating trend with the carding roller 31. When the support plate 42 rotates relative to the carding roller 31, the card teeth 32 on the carding roller 31 generate relative movement with the support plate 42. Since the support plate 42 is located on the rotating path of the card teeth 32, the support plate 42 supports and limits the card teeth 32, so that the card teeth 32 extend out of the adjusting cavity 41. After the card teeth 32 pass through the airflow flow channel 21, the card teeth 32 gradually lose the support of the support plate 42. Under the elastic force of the spring, the card teeth 32 move towards the inside of the adjusting cavity 41, so that the cotton fibers pulled by the card teeth 32 fall off. Under the action of gravity, the cotton fibers enter the inner cavity of the discharging box 23 through the upper opening of the discharging box 23, thereby completing the collection and gathering of the cotton fibers.

[0069] As a preferred embodiment of the present application, the shell 1 is clamped on one side with a mounting plate 5. The mounting plate 5 is rotatably connected with mounting rollers 51 near the inner cavity of the shell 1. The number of the mounting rollers 51 is two, and the two ends of the adsorption belt 22 are respectively wound and fixed on the mounting rollers 51. The mounting roller 51 near the electric motor 3 extends to the outside, and the mounting roller 51 and the electric motor 3 are driven by a transmission member.

[0070] In the embodiment, the mounting plate 5 is a plate structure with holes, which is in sliding cooperation with the guide rod fixed in the inner cavity of the shell 1, thereby being clamped and connected with the shell 1. When the output shaft of the electric motor 3 rotates, the mounting roller 51 is driven to rotate by the transmission member. The rotating mounting roller 51 generates a pulling action on the adsorption belt 22, thereby causing the adsorption belt 22 to move in the flow channel 21. During continuous operation, the adsorption belt 22 in contact with the flow channel 21 gradually winds around one of the mounting rollers 51, and the unused part of the adsorption belt 22 wound around the other mounting roller 51 continuously enters the flow channel 21 to adsorb impurities in the airflow. By continuously replacing the adsorption belt 22, the surface of the adsorption belt 22 is effectively prevented from being occupied by impurities, which causes the adsorption belt 22 to lose its function. The continuously replaced adsorption belt 22 effectively enhances the collection effect of impurities and enhances the accuracy of the detection result.

[0071] As a preferred embodiment of the present application, the transmission member is a rotating shaft 52 and a transmission gear 53. The rotating shaft 52 is rotatably installed between the mounting roller 51 and the electric motor 3. The rotating shaft 52, the mounting roller 51 and the output shaft of the electric motor 3 are all fixedly installed with transmission gears 53. Adjacent two transmission gears 53 are in meshing relationship.

[0072] In the embodiment, the transmission member is combined by the rotating shaft 52 and the transmission gear 53. When the electric motor 3 operates, the transmission gear 53 fixed on the output shaft thereof rotates, and then the rotating shaft 52 and the transmission gear 53 are connected through the mutual transmission of the transmission gears 53, so that the installation roller 51 rotates. The installation of the transmission gear 53 depends on the rotating shaft 52. The gear transmission has the effects of high precision and high transmission efficiency. Since the mounting plate 5 and the shell 1 are connected by clamping in the embodiment, the mounting plate 5 can be directly manually pulled in the subsequent process of taking out the adsorption belt 22. The transmission gear 53 connected to the mounting plate 5 through the rotating shaft 52 can be directly separated from the transmission gear 53 fixedly installed on the electric motor 3. Compared with the transmission mode such as belt transmission, the gear transmission is convenient for disassembly and installation, and then the mounting plate 5 and the adsorption belt 22 are convenient for taking out, thereby enhancing the use convenience of the device.

[0073] As a preferred embodiment of the present application, the mounting plate 5 is rotatably provided with a guide rod 54, and the guide rod 54 is used to guide the movement path of the adsorption belt 22.

[0074] In the embodiment, the guide rod 54 is installed on the mounting plate 5, and the guide rod 54 is used to guide the adsorption belt 22 and fix the movement path of the adsorption belt 22. During the rotation of the installation roller 51, the adsorption belt 22 moves along the specified path, and then the movement path of the adsorption belt 22 is as much as possible coincides with the flow channel 21, thereby enhancing the adsorption and collection effects of the adsorption belt 22 on the impurities entrained by the airflow in the flow channel 21.

[0075] As a preferred embodiment of the present application, the comb teeth 32 are in contact with the adsorption belt 22 during the movement of the adsorption belt 22, and the comb roller 31 has the same rotating direction as the adsorption belt 22.

[0076] In the embodiment, by adjusting the number of the rotating shaft 52 and the transmission gear 53, the rotating direction of the installation roller 51 can be the same as that of the comb roller 31, and then the rotating direction of the comb roller 31 is the same as that of the adsorption belt 22. That is, the movement directions of the comb roller 31 and the adsorption belt 22 are opposite to the airflow direction. During the movement, since the comb roller 31 is adjacent to the adsorption belt 22, the movement directions of the adjacent sides of the comb roller 31 and the adsorption belt 22 are different. At this time, the comb roller 31 moves to the upward hopper 12 direction, and the adsorption belt 22 moves to the downward hopper 23 direction. Then, the relative movement of the two is used to scrape the surface of the adsorption belt 22 by the comb teeth 32. When the raw cotton fibers enter the flow channel 21 and are adsorbed on the adsorption belt 22, the comb teeth 32 can be used to separate the raw cotton fibers. The separated raw cotton fibers move together with the comb teeth 32, thereby reducing the adhesion amount of the raw cotton fibers on the surface of the adsorption belt 22 and reducing the workload of the subsequent processing.

[0077] As a preferred embodiment of the present application, a guide net 55 is fixedly arranged in the flow channel 21, the guide net 55 is located above the adsorption belt 22, and the guide net 55 is arranged obliquely,

[0078] In the embodiment, by arranging the guide net 55 and locating the guide net 55 above the adsorption belt 22, when the raw cotton fibers enter the flow channel 21 and move towards the adsorption belt 22, the raw cotton fibers are intercepted and screened by the guide net 55, and then the content of the raw cotton fibers adhered to the adsorption belt 22 is reduced. At the same time, under the guidance of the airflow, the raw cotton fibers on the guide net 55 move along the guide net 55, and finally enter the discharge box 23 under the action of the airflow and are intercepted by the intercepting net 4 in the discharge box 23, thereby completing the collection of the raw cotton fibers.

[0079] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An impurity tester for fiber impurity inspection, comprising: a shell, which is a hollow structure, and a pull part is provided at the top of the shell; an upper hopper, which is fixedly installed on the top of the shell and is in communication with the inner cavity of the shell; characterized in that it further comprises: a separation assembly, which separates the fiber body from the impurities by airflow, is installed in the inner cavity of the shell, and comprises a circulating fan, which is installed in the inner cavity of the shell and is used to drive the air in the shell to form an airflow; a flow channel, which is provided in the shell and is used to guide the airflow and fix its flow route; an adsorption belt, which is installed in the flow channel and is used to intercept the impurities in the airflow; a carding assembly, which is used to card the fibers and enhance the uniform contact between the airflow and the fibers; a lower hopper, which is designed as an opening on one side of the shell and is installed at the opening of the shell, the carding assembly is installed between the upper hopper and the lower hopper, and the lower hopper is used to receive the fibers falling from the carding assembly; the carding assembly comprises an electric motor, which is fixedly installed on the shell, and the output end of the electric motor penetrates through the shell and extends into the inner cavity of the shell; a carding roller, the surface of which is provided with uniformly distributed card teeth, the card teeth extend into the inner part of the upper hopper, and the carding roller is fixedly connected with the output end of the electric motor; the flow channel is annular and in communication with both ends of the circulating fan, the inner cavity of the lower hopper partially overlaps with the flow channel, and the flow direction of the gas is opposite to the rotation direction of the electric motor; an intercepting net is fixedly installed on the side of the lower hopper close to the carding roller, the intercepting net is located on the flow path of the flow channel, the lower hopper is designed as an opening opposite to the carding roller, an adjusting cavity is provided at the end of the carding roller away from the electric motor, the card teeth are all "T"-shaped structures, the card teeth all penetrate through the carding roller and extend into the adjusting cavity, and the end of the card teeth in the adjusting cavity is elastically connected with the inner wall of the adjusting cavity through a spring; the card teeth are in contact with the adsorption belt during movement, the rotation direction of the carding roller is the same as that of the adsorption belt, a guide net is fixedly installed in the flow channel, the guide net is located above the adsorption belt, and the guide net is arranged obliquely.

2. A foreign matter detector for fiber foreign matter inspection according to claim 1, characterized by: the carding assembly further comprises a pressing plate, an installation frame is connected at the end of the upper hopper, and the pressing plate is elastically connected with the side of the installation frame close to the shell through a spring.

3. A foreign object detector for use in the inspection of fibrous material according to claim 2, characterised in that: a supporting plate is fixedly installed on the inner wall of the shell, extends into the adjusting cavity, and is located on the rotation path of the card teeth.

4. The impurity tester for fiber impurities inspection according to claim 1, characterized in that: an installation plate is connected on one side of the shell, an installation roller is rotationally connected with the side of the installation plate close to the inner cavity of the shell, the number of the installation rollers is two, the two ends of the adsorption belt are respectively wound and fixed on the installation rollers, the installation roller close to the electric motor extends to the outside, and the installation roller is driven by a transmission member together with the electric motor.

5. A foreign object detector for use in the inspection of fibrous material according to claim 4, characterised in that: the transmission member is a rotating shaft and a transmission gear, the rotating shaft is rotationally installed between the installation roller and the electric motor, the transmission gears are fixedly installed on the rotating shaft, the installation roller, and the output shaft of the electric motor, and the transmission gears are in mesh with each other.

6. A foreign object detector for use in the inspection of fibrous material according to claim 4 or 5, characterised in that: A guide rod is rotatably installed on the mounting plate, and is used to guide the moving path of the adsorption belt.

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