A feeding device for a combined combing machine

Abstract

The present application discloses a feeding device for a combined carding machine, belonging to the technical field of carding machines. It mainly includes a combined carding machine applied to ramie spinning. The feeding device includes a support assembly, a first conveying assembly installed on the support assembly, at least one set of pressure feeding assemblies arranged at the upper end of the first conveying assembly, a cutting assembly installed on the support assembly, a pressurizing assembly installed on the support assembly, and a loosening assembly located at the end of the feeding device. The pressure feeding assembly, the cutting assembly, the pressurizing assembly, and the loosening assembly are arranged in sequence along the conveying direction of ramie spinning. The feeding device for a combined carding machine of the present application compacts and cuts the input ramie spinning by arranging a pressure feeding assembly and a cutting assembly, thereby maintaining the uniformity of the thickness of the input ramie spinning and avoiding the disordered winding and clustering of the ramie spinning. Furthermore, the performance of the ramie spinning input into the loosening assembly is kept consistent, thus improving the quality of subsequent ramie spinning carding.

Description

Technical Field

[0001] This application relates to the technical field of carding machines, and specifically relates to a feeding device for a combined carding machine. Background Art

[0002] A combined carding machine, also known as a carding machine, is a spinning machine that separates the preliminarily processed spinning raw materials into single fiber states, forms a web-like fiber thin layer, and then aggregates them into fiber strips. Currently, there are many types and diverse structures of carding machines on the market, and there are also carding machines specifically for coarse fibers with relatively small adhesion such as ramie and flax;

[0003] For example, the utility model patent with the publication number CN208038614U specifically discloses a carding machine dedicated for ramie spinning, including a feeding mechanism, a loosening mechanism, a carding mechanism, and a stripping mechanism. Each mechanism is arranged in sequence from back to front. The carding mechanism includes a large cylinder and a doffer. The large cylinder is located behind the doffer. By adding a loosening mechanism, the loosening and impurity removal effect on ramie spinning is good, effectively reducing the damage of ramie spinning fibers, and significantly improving the ability to remove impurities and short fibers;

[0004] However, in the above-mentioned disclosed patent, although a loosening mechanism is added and the carding effect of ramie spinning is improved, the input end of ramie spinning is mostly waste raw materials, and usually no screening is carried out during manual placement, resulting in uneven thickness and disorderly winding into groups of the ramie spinning entering the loosening mechanism. As a result, the ramie spinning entering the loosening mechanism has large differences, and finally the ramie spinning processed by the loosening mechanism cannot maintain consistency during output, further increasing the burden on subsequent carding, resulting in unstable quality of the ramie spinning carding finished product. Therefore, it is necessary to provide a feeding device for a combined carding machine to solve the above problems.

[0005] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application, and therefore, it may include information that does not constitute the prior art. Summary of the Invention

[0006] Based on the above problems existing in the prior art, the problem to be solved by this application is: to provide a feeding device for a combined carding machine, which solves the problem of large differences in the ramie spinning entering the loosening mechanism.

[0007] The technical solution adopted by the present application to solve its technical problems is: a feeding device for a combing machine, including a combing machine for hemp spinning, the feeding device includes a supporting component, which plays a supporting role; a first conveying component, which is installed on the supporting component and is used to receive the hemp spinning and convey the hemp spinning to the processing area; at least one group of pressing components, which is arranged at the upper end of the first conveying component and cooperates with the first conveying component to compact the hemp spinning; a cutting component, which is installed on the supporting component and is used to cut the compacted hemp spinning; a pressurizing component, which is installed on the supporting component and is used to further compact the hemp spinning to eliminate the rebound of the hemp spinning during cutting and conveying; an opening component, which is located at the end of the feeding device and is used for the opening processing of the hemp spinning; the pressing component, cutting component, pressurizing component and opening component are arranged in sequence along the conveying direction of the hemp spinning.

[0008] Furthermore, the first conveying assembly includes a first driving unit installed on the supporting assembly, a third transmission roller is installed at the output end of the first driving unit, and the third transmission roller is mounted on the supporting assembly via bearings; a second transmission roller is mounted on the bearing on the supporting assembly, and the first conveying unit is transmission-connected to the second transmission roller and the third transmission roller.

[0009] Furthermore, the pressing assembly includes a first pressing assembly and a second pressing assembly arranged along the hemp spinning conveying direction, a first gap is formed between the first pressing assembly and the first conveying assembly, a second gap is formed between the second pressing assembly and the first conveying assembly, and a height of the first gap is smaller than a height of the second gap.

[0010] Furthermore, the first pressing assembly includes two first gas springs installed on the supporting assembly, and a first bearing seat is installed at the output end of the first gas spring, so that the first gas spring can drive the first bearing seat to move in a vertical direction under the action of an external force; a first pressing roller is installed on the first bearing seat, and the first pressing roller is located directly above the second transmission roller.

[0011] Furthermore, the second pressing assembly includes a second gas spring installed on the supporting assembly, and a second bearing seat is installed on the output end of the second gas spring, so that the second gas spring can drive the second bearing seat to move in a vertical direction under the action of an external force; a second pressing roller is installed on the second bearing seat, and a first transmission roller is installed on the bearing on the supporting assembly, and the second pressing roller is located directly above the first transmission roller.

[0012] Further, the cutting assembly includes a second driving part installed on the support assembly. A cutting knife is provided at the output end of the second driving part. The cutting knife is adapted to reciprocate horizontally under the drive of the second driving part. A cutting part is provided at a position of the cutting knife away from the second driving part. A fixed shaft is installed on the support assembly. A bending plate is provided on the fixed shaft. A torsion spring is installed between the bending arc of the bending plate and the fixed shaft. The bending plate is adapted to rotate around the fixed shaft. The bending plate has a first bending part corresponding to the cutting part and a second bending part opposite to the first bending part. The first bending part is adapted to move away from the cutting part so that the cutting assembly is in a working state, or move close to the cutting part so that the cutting assembly is in a backfeeding state.

[0013] Further, a magnetic attraction seat is installed on the support assembly. The magnetic attraction seat is adapted to have magnetism when electrified. The bending plate is made of iron. When the cutting assembly is in a working state, the magnetic attraction seat and the bending plate are magnetically fixed.

[0014] Further, a magnetic attraction part is provided at the upper end of the cutting knife at the position of the cutting part. The magnetic attraction part is adapted to have magnetism when electrified. The bending plate is made of iron. When the cutting assembly is in a backfeeding state during the working state, the magnetic attraction part and the bending plate are magnetically fixed.

[0015] Further, a fixed seat is installed on the support assembly. Multiple groups of thorns are installed on the fixed seat. Multiple groups of needle punching parts for separating the hemp spinning are provided on the thorns. Multiple groups of insertion blocks are provided at one end of the second bending part away from the fixed shaft. Slots are provided on the insertion blocks. Insertion needles are installed in the slots. The needle punching parts and the insertion needles are staggered corresponding to each other to form a comb-like structure for separating the hemp spinning.

[0016] Further, a third conveying assembly is provided below the discharging end of the second bending part.

[0017] The beneficial effects of the present application are as follows: The feeding device of the combined carding machine provided by the present application compacts and cuts the input through the setting of the pressing component and the cutting component, so as to maintain the uniformity of the thickness of the input hemp spinning and avoid the disordered winding of the hemp spinning into a ball. Furthermore, the performance of the hemp spinning input into the opening component is kept consistent, thereby improving the quality of subsequent hemp spinning carding.

[0018] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. Description of the Drawings

[0019] The accompanying drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments and descriptions thereof are used to explain this application and do not constitute an improper limitation of this application.

[0020] In the drawings:

[0021] Figure 1 is the overall schematic diagram of a feeding device for a combined carding machine in this application;

[0022] Figure 2 is Figure 1 the schematic diagram of the overall transmission part structure of a feeding device for a combined carding machine;

[0023] Figure 3 is Figure 1 the overall sectional schematic diagram of a feeding device for a combined carding machine in;

[0024] Figure 4 is Figure 1 the local structure schematic diagram at position A in;

[0025] Figure 5 is Figure 2 the local structure schematic diagram at position B in;

[0026] Figure 6 is Figure 2 the local structure schematic diagram at position C in;

[0027] Figure 7 is Figure 4 the local structure schematic diagram of the cutting knife position in;

[0028] Figure 8 is Figure 3 the local structure schematic diagram at position D in;

[0029] Figure 9 is Figure 8 the local structure schematic diagram of the needle position in;

[0030] Figure 10 is Figure 9 the local structure schematic diagram of the insert block position in;

[0031] Among them, the reference numerals in the drawings:

[0032] 1. Support assembly; 11. Support part; 12. First side plate; 121. First chute; 122. Second chute; 123. Third chute; 13. First material receiving part; 14. Second material receiving part;

[0033] 2. First conveying assembly; 21. First driving part; 22. First conveying part; 23. First driving roller; 24. Second driving roller; 25. Third driving roller;

[0034] 3. Pressing component; 31. First air spring; 32. First bearing seat; 33. Second air spring; 34. Second bearing seat; 35. First pressing roller; 36. Second pressing roller;

[0035] 4. Cutting component; 41. Second driving part; 42. Third bearing seat; 43. Cutting shaft; 431. Installation groove; 44. Cutting knife; 441. Cutting part; 442. Magnetic attraction part; 45. Fixed shaft; 46. Bending plate; 461. First bending part; 462. Second bending part; 463. Cutting edge; 464. Insert block; 465. Insert pin; 466. Slot; 467. Elastic body; 47. Fixed seat; 48. Pricking needle; 481. Pricking part; 49. Magnetic attraction seat; 410. Torsion spring;

[0036] 5. Second conveying component; 51. Third driving part; 52. Fourth driving roller; 53. Fifth driving roller; 54. Second conveying part;

[0037] 6. Pressurizing component; 61. Third air spring; 62. Fourth bearing seat; 63. Pressurizing roller; 64. Feeding roller;

[0038] 7. Opener component; 71. Fourth driving part; 72. Chain; 74. Cylinder; 75. First sprocket; 76. Second sprocket;

[0039] 8. Third conveying component; 81. Fifth driving part; 82. Sixth driving roller; 83. Seventh driving roller; 84. Third conveying part. Specific embodiments

[0040] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0041] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0042] Embodiment 1:

[0043] This embodiment specifically elaborates on a feeding device for a combined carding machine for ramie spinning, so as to avoid the phenomena of uneven thickness and disorderly winding into groups before the ramie spinning enters the opener component, thereby controlling the quality of subsequent ramie spinning carding. The following is an introduction to the overall structure and functions of the feeding device. Specifically:

[0044] As Figures 1 - 3 shown, this embodiment provides a feeding device for a combined carding machine, including a support assembly 1, which mainly provides support for various parts of the feeding device and provides a transition for the transmission of ramie spinning between various parts. A first conveying assembly 2 is arranged on the support assembly 1. The first conveying assembly 2 is used to receive ramie spinning and convey it to the processing area. For the feeding method of the first conveying assembly 2, ramie spinning can be placed at the starting end of the first conveying assembly 2 manually, or ramie spinning in the warehouse can be transmitted to the starting end of the first conveying assembly 2 through a transmission system, which is not limited here;

[0045] A pressing assembly 3 is arranged on the first conveying assembly 2. The pressing assembly 3 is used to compact the ramie spinning, so that the ramie spinning in a fluffy and disordered state is compacted and is roughly in the same thickness state after compaction. A cutting assembly 4 is arranged at the end of the first conveying assembly 2. The cutting assembly 4 is used to cut the conveyed ramie spinning so that the length of the ramie spinning in the conveying direction is consistent, so as to avoid the ramie spinning being disorderly wound into a ball. After the ramie spinning is compacted and cut, it is basically consistent in both the conveying length direction and the thickness direction, thus changing the disorder of the initial state of the ramie spinning, which is beneficial to the subsequent opening operation;

[0046] A first receiving portion 13 is arranged at the discharge end of the cutting assembly 4. The starting position of the first receiving portion 13 is located below the discharge end of the cutting assembly 4 and is used to receive the cut ramie spinning. At the same time, the first receiving portion 13 is inclined, and the starting position of the first receiving portion 13 is higher than the discharge position. Therefore, the ramie spinning can be conveyed from the starting position to the discharge position on the first receiving portion 13 by relying on its own gravity and the thrust of the subsequent ramie spinning;

[0047] A second conveying assembly 5 is arranged at the discharge position of the first receiving portion 13. The starting end of the second conveying assembly 5 is located below the discharge position of the first receiving portion 13 and is used to receive the ramie spinning output by the first receiving portion 13. A pressing assembly 6 is arranged at the end of the second conveying assembly 5. The pressing assembly 6 is used to further compact the ramie spinning to eliminate the rebound of the ramie spinning in the thickness direction during cutting and conveying, and thus maintain the consistency of the ramie spinning in the thickness direction;

[0048] At the output end of the pressing assembly 6, there is a loosening assembly 7, which is used for the loosening treatment of hemp spinning to facilitate the subsequent carding of hemp spinning by the carding machine. At the end of the loosening assembly 7, there is a second material receiving part 14, which is used to receive the hemp spinning after loosening and convey the hemp spinning into the carding machine. In this embodiment, the second material receiving part 14 can adopt the same setting as the first material receiving part 13, and use the inclined plane to make the hemp spinning rely on its own gravity and the thrust of the subsequent hemp spinning to be conveyed into the carding machine. Of course, it can also be realized by using a conveying device, which is not limited here;

[0049] In summary, the working process of the feeding device in this embodiment is as follows:

[0050] When the hemp spinning enters the first conveying assembly 2, it follows the transmission of the first conveying assembly 2 to the pressing assembly 3, and the pressing assembly 3 is used to compact the hemp spinning. Then, the compacted hemp spinning continues to follow the transmission of the first conveying assembly 2 and enters the cutting assembly 4. Under the action of the cutting assembly 4, the hemp spinning is cut into sections and falls to the starting position of the first material receiving part 13. Relying on the gravity of the hemp spinning itself and the thrust of the subsequent hemp spinning, the hemp spinning enters the second conveying assembly 5 from the discharging position of the first material receiving part 13, and follows the second conveying assembly 5 into the pressing assembly 6. The pressed hemp spinning enters the loosening assembly 7 from the output end of the pressing assembly 6 and is subjected to loosening treatment. The loosened hemp spinning falls onto the second material receiving part 14 and is input into the carding machine through the second material receiving part 14 for further carding.

[0051] Embodiment Two:

[0052] This embodiment further limits Embodiment One and elaborates an implementation manner of each component in Embodiment One. The specific structure and working principle are as follows:

[0053] As Figures 1 - 2 and Figure 4 shown, the support assembly 1 includes a support part 11, which is assembled by welding profiles. At the middle position of the support part 11 and on both sides of the hemp spinning conveying direction, there are two first side plates 12 fixedly installed, which are used for the installation of various components;

[0054] The first conveying assembly 2 is arranged at one end of the support part 11 and includes a first driving part 21 fixedly installed with the support part 11. In this embodiment, the first driving part 21 is a servo motor or a hydraulic motor. At the same time, a third driving roller 25 is fixed at the output end of the first driving part 21, and the third driving roller 25 is installed with the support part 11 by bearings. Thus, under the drive of the first driving part 21, the third driving roller 25 can rotate continuously;

[0055] Meanwhile, a second driving roller 24 is also mounted on the supporting portion 11 by bearings, and a first conveying portion 22 is drivingly connected between the second driving roller 24 and the third driving roller 25. In this embodiment, the first driving portion 21, the second driving roller 24, the third driving roller 25 and the first conveying portion 22 form a conventional belt transmission structure, and its specific working principle is the same as that of the belt transmission structure in the prior art, which will not be elaborated herein;

[0056] In this embodiment, for the convenience of description, it is set that the position of the first conveying portion 22 close to the third driving roller 25 is the starting end, and the position close to the second driving roller 24 is the end;

[0057] The material pressing assembly 3 is arranged directly above the first conveying assembly 2, and includes two first air springs 31 fixedly installed at the upper ends of the first side plates 12. At the same time, vertical first sliding grooves 121 are provided on both first side plates 12. A first bearing seat 32 is slidably arranged inside the first sliding groove 121, and the output end of the first air spring 31 is fixed to the first bearing seat 32. At the same time, a first material pressing roller 35 is installed on both first bearing seats 32. The first material pressing roller 35 is located directly above the second driving roller 24. Thus, under the action of an external force, the first bearing seat 32 can move up and down along the first sliding groove 121, drive the first material pressing roller 35 to move up and down, and through the extrusion between the first material pressing roller 35 and the second driving roller 24, the ramie spinning is compacted;

[0058] In summary, the ramie spinning is conveyed to the position of the material pressing assembly 3 through the first conveying assembly 2. In the initial state, there is a gap between the first material pressing roller 35 and the upper end of the first conveying portion 22, and this gap is set by the staff and is used to limit the height of the ramie spinning compression;

[0059] When the disordered ramie spinning reaches the above gap along with the first conveying portion 22, due to the small gap and the relatively thick ramie spinning will squeeze the first material pressing roller 35, causing the first material pressing roller 35 to tend to move upward. However, due to the presence of the first air spring 31, the first material pressing roller 35 resists the upward movement tendency and forms an extrusion action on the ramie spinning together with the second driving roller 24, so that the ramie spinning is compacted;

[0060] In order to make the compaction effect of the material pressing assembly 3 on the ramie spinning better, multiple groups of material pressing assemblies 3 can be provided. In this embodiment, two groups of material pressing assemblies 3 are set for introduction. At the same time, the material pressing assembly 3 located directly above the second driving roller 24 is set as the first material pressing assembly, and the other group of material pressing assemblies 3 is set as the second material pressing assembly. Specifically:

[0061] The second material pressing assembly includes a second air spring 33 fixedly installed at the upper end of the first side plate 12. The second air spring 33 is located on one side of the first air spring 31 close to the starting end of the first conveying assembly 2. At the same time, vertical third sliding grooves 123 are provided at corresponding positions on the two first side plates 12. A second bearing seat 34 is slidably arranged inside the third sliding groove 123. The output end of the second air spring 33 is fixed to the second bearing seat 34. At the same time, a second material pressing roller 36 is installed on the two second bearing seats 34;

[0062] At the same time, a first driving roller 23 is installed on the supporting part 11 by bearings. The first driving roller 23 is located between the second driving roller 24 and the third driving roller 25. And the second material pressing roller 36 is located directly above the first driving roller 23. Thus, the second material pressing assembly can, like the first material pressing assembly, compact the hemp spinning;

[0063] In this embodiment, for the convenience of description, the gap between the first material pressing roller 35 and the upper end of the first conveying part 22 is set as the first gap, and the gap between the second material pressing roller 36 and the upper end of the first conveying part 22 is set as the second gap. And the height of the first gap is lower than the height of the second gap. Thus, multi-stage and layered compaction operations of the hemp spinning are realized;

[0064] As Figure 1 and Figure 4 shown, the cutting assembly 4 includes a second driving part 41 fixed on the two first side plates 12. In this embodiment, the second driving part 41 is a cylinder. At the same time, a horizontal second sliding groove 122 is formed on the first side plate 12. A third bearing seat 42 is slidably installed in the second sliding groove 122. The output end of the second driving part 41 is fixed to the third bearing seat 42. At the same time, a cutting shaft 43 is installed on the two third bearing seats 42. Thus, driven by the second driving part 41, the third bearing seat 42 can reciprocate in the second sliding groove 122, and then drive the cutting shaft 43 to reciprocate;

[0065] As Figure 4 Figure 7 shown, an installation groove 431 is formed on the cutting shaft 43. A cutting knife 44 is inserted into the installation groove 431. The cutting knife 44 is fixed to the cutting shaft 43 through fasteners. Thus, the cutting knife 44 is horizontally arranged. Of course, the cutting knife 44 can also be at different angles according to the opening angle of the installation groove 431. Of course, the cutting knife 44 can also be directly fixed to the output end of the second driving part 41. For the above various situations, no limitation is made here;

[0066] At the same time, a cutting part 441 is arranged at a position on the cutting knife 44 far from the cutting shaft 43. The cutting part 441 is used for cutting the hemp spinning;

[0067] As Figure 6 andFigure 8 As shown, magnetic suction seats 49 are fixed on two first side plates 12, and a bent plate 46 is fixed on the magnetic suction seat 49. The manner in which the bent plate 46 is fixed to the magnetic suction seat 49 is not limited in this embodiment;

[0068] At the same time, the fixed bent plate 46 is provided with a first bent portion 461 corresponding to the cutting portion 441. The side of the first bent portion 461 close to the cutting portion 441 (hereinafter referred to as the outer side of the first bent portion 461) is used as a fixed knife to cooperate with the cutting portion 441 to cut the hemp textile;

[0069] In summary, the compacted hemp textile enters the cutting assembly 4. At this time, driven by the second driving portion 41, the cutting portion 441 on the cutting knife 44 can reciprocate in the horizontal direction. Thus, when the cutting portion 441 contacts the surface of the bent plate 46, the hemp textile is cut. At the same time, because the reciprocating movement frequency of the cutting portion 441 is fixed, the cutting period of the hemp textile is also fixed, thereby realizing fixed-length cutting;

[0070] As Figures 1 - 3 shown, the cut hemp textile is conveyed to the second conveying assembly 5 through the first material receiving portion 13. At the same time, in order to prevent the hemp textile from running out from both sides of the first material receiving portion 13, upward bent edges are provided on both sides of the first material receiving portion 13 to make the transmission of the hemp textile more stable;

[0071] As Figures 1 - 2 shown, the second conveying assembly 5 includes a third driving portion 51 fixed on the support portion 11. In this embodiment, the third driving portion 51 can be a servo motor or a hydraulic motor. A fifth driving roller 53 is fixed to the output end of the third driving portion 51. The fifth driving roller 53 is installed on the support portion 11 by bearings. At the same time, a fourth driving roller 52 is installed on the first side plate 12 near the first material receiving portion 13 by bearings. And a second conveying portion 54 is installed between the fourth driving roller 52 and the fifth driving roller 53 in a transmission manner. Thus, the third driving portion 51, the fourth driving roller 52, the fifth driving roller 53 and the second conveying portion 54 form a conventional belt transmission structure, and its specific working principle is the same as that of the belt transmission structure in the prior art and will not be elaborated;

[0072] As Figures 1 - 2 and Figure 5 shown, the structure of the pressing assembly 6 is basically the same as that of the material pressing assembly 3, mainly to further compact the cut hemp textile. Specifically:

[0073] The pressurizing assembly 6 includes a feeding roller 64 at the lower end, the feeding roller 64 is fixed to the output end of an external servo motor (not shown in the figure), and a third gas spring 61 is provided at the upper end of the feeding roller 64, the third gas spring 61 is fixed to the support portion 11, and a third vertical slide groove (not shown in the figure) is provided on the support portion 11, and a fourth bearing seat 62 is slidably installed inside the third slide groove, and the fourth bearing seat 62 is fixed to the output end of the third gas spring 61;

[0074] At the same time, a pressurizing roller 63 is installed on the fourth bearing seat 62, and the pressurizing roller 63 is located directly above the feeding roller 64, so that when the hemp spinning passes through the second conveying assembly 5 and reaches the pressurizing assembly 6, the hemp spinning is further compacted by the action of the pressurizing roller 63 and the feeding roller 64 driven by the third gas spring 61, and the feeding roller 64 is driven by the external servo motor to convey the hemp spinning;

[0075] like Figures 1 - 2 As shown, the opening assembly 7 includes a fourth driving part 71 fixedly mounted on the support part 11. In this embodiment, the fourth driving part 71 is a servo motor or a hydraulic motor. A first sprocket 75 is fixed to the output end of the fourth driving part 71. At the same time, a cylinder 74 is mounted on a bearing on the support part 11. A second sprocket 76 is fixed on the cylinder 74 at one side of the first sprocket 75. A chain 72 is connected to the first sprocket 75 and the second sprocket 76 in a transmission manner. The fourth driving part 71, the first sprocket 75, the second sprocket 76 and the chain 72 constitute a conventional chain transmission mechanism, and its working principle is not repeated here.

[0076] Therefore, when the flax yarn passes through the pressurizing assembly 6 and enters the opening assembly 7, the cylinder 74 is driven to rotate through the chain transmission mechanism, and the flax yarn is opened.

[0077] Embodiment three:

[0078] When the hemp spinning is cut by the cutting assembly, there are certain requirements for the thickness of the hemp spinning after compaction. If the thickness of the hemp spinning after compaction is too high, it is not easy for the cutting knife to completely cut the hemp spinning. The incompletely cut hemp spinning will have an adverse effect on the opening and finished product of the hemp spinning in the subsequent combing process.

[0079] Therefore, the input hemp yarn needs to be tested in the previous process to ensure that the thickness of the hemp yarn after compaction is within a certain range. When the hemp yarn is stacked too high and compacted, the overly thick hemp yarn can be returned.

[0080] Therefore, this embodiment improves the cutting assembly on the basis of the second embodiment, so that the cutting assembly can adopt two different processing methods according to the detection result of the thickness of the compacted hemp spinning, namely, continuing the opening processing or the recycling processing. Specifically:

[0081] First, add a PLC control system which can pre-store various parameters and control the electrical equipment of the feeding device according to the change of parameters;

[0082] Second, referring to the structure of Figure 4 , in the first pressure-feeding assembly, a pressure sensor (not shown in the figure) is installed at the position where the output end of the first air spring 31 is fixed to the first bearing seat 32. The pressure sensor is used to collect the acting force when the first pressure roller 35 compacts the hemp textile, and calculate the rising height of the first pressure roller 35 according to the magnitude of the acting force collected by the pressure sensor. Furthermore, according to the rising height of the first pressure roller 35, determine the thickness of the compacted hemp textile;

[0083] Set a threshold value for the thickness of the hemp textile in the PLC control system. When the actually obtained thickness of the hemp textile is less than the threshold value, continue the subsequent loosening treatment. When the actually obtained thickness of the hemp textile is greater than the threshold value, the hemp textile is re-fed through the cutting assembly 4;

[0084] As Figure 6 and Figure 8 shown, in this embodiment, the bending plate 46 is made of iron, and the bending plate 46 is magnetically fixed to the magnetic seat 49. At the same time, the magnetic seat 49 is an electromagnet, and its power-on and power-off conditions are determined by the PLC control system;

[0085] At the same time, the bending part of the bending plate 46 has an arc transition. A fixed shaft 45 is arranged at the bending part of the bending plate 46. The fixed shaft 45 is fixedly installed with the first side plate 12. At the same time, a torsion spring 410 is connected between the fixed shaft 45 and the bending plate 46, so that the bending plate 46 can rotate around the fixed shaft 45 through the torsion spring 410 under the action of an external force;

[0086] As Figure 7 shown, a magnetic attraction part 442 is arranged at the upper end of the cutting part 441 on the cutting knife 44. The magnetic attraction part 442 is also an electromagnet, and its power-on and power-off conditions are determined by the PLC control system. At the same time, the magnetic attraction part 442 is isolated from other positions of the cutting knife 44, and the cutting part 441 protrudes from the outer end of the magnetic attraction part 442, so that when the cutting part 441 cooperates with the bending plate 46 for cutting, the magnetic attraction part 442 will not contact the bending plate 46;

[0087] As Figure 6 and Figure 8 shown, a second bending part 462 opposite to the first bending part 461 is also arranged on the bending plate 46. The side of the second bending part 462 away from the first material receiving part 13 (hereinafter referred to as the inner side of the first material receiving part 13) is the re-feeding channel for the hemp textile;

[0088] In summary, in the initial state, the magnetic seat 49 and the magnetic portion 442 are both in a power-off state, and the bending plate 46 is in the middle position between the magnetic seat 49 and the magnetic portion 442 under the action of the torsion spring 410. This state is the initial state of the cutting assembly 4.

[0089] When the feeding device in the present application starts to work, the magnetic seat 49 is energized, while the magnetic portion 442 continues to remain in a de-energized state. At this time, the bending plate 46 rotates to a position in contact with the magnetic seat 49 under the suction force of the magnetic seat 49, and at this time, the outer side of the first bending portion 461 is located at the discharge position at the end of the first conveying component 2, and contacts with the end of the first conveying component 2, for receiving the compacted hemp spinning, and the outer side of the first bending portion 461 cooperates with the cutting portion 441 to cut the hemp spinning, and then the cut hemp spinning is placed on the first receiving portion 13 to continue subsequent operations. This state is called the working state of the cutting component 4;

[0090] When the pressure sensor in the first pressing component detects that the compacted hemp spinning is within the threshold range, the cutting component 4 continues to maintain the working state, and when the pressure sensor detects that the compacted hemp spinning exceeds the threshold, the hemp spinning with excessive thickness needs to be recycled. At this time, the magnetic seat 49 loses power, and the magnetic part 442 is energized. Under the action of the suction force of the magnetic part 442, the bending plate 46 rotates to a position in contact with the magnetic part 442. At this time, the inner side of the first bending part 461 is located at the discharging position at the end of the first conveying component 2, which is used to receive the compacted hemp spinning and recycle the hemp spinning through the inner side of the first bending part 461 and the inner side of the second bending part 462. This state is called the recycle state of the cutting component 4.

[0091] Finally, if Figures 1 - 3 As shown, a third conveying assembly 8 is provided below the discharge end inside the second bending portion 462, and the third conveying assembly 8 includes a fifth driving portion 81 fixedly mounted on the support portion 11. In this embodiment, the fifth driving portion 81 can be a servo motor or a hydraulic motor, and a seventh transmission roller 83 is fixed to the output end of the fifth driving portion 81, and the seventh transmission roller 83 is connected to the support portion 11 by a bearing, and a sixth transmission roller 82 is mounted on the support portion 11 by a bearing, and the third conveying portion 84 is transmission-connected to the sixth transmission roller 82 and the seventh transmission roller 83, so that a conventional belt transmission mechanism is formed by the fifth driving portion 81, the sixth transmission roller 82, the seventh transmission roller 83 and the third conveying portion 84, and its specific working principle is the same as the belt transmission structure in the prior art, which will not be repeated;

[0092] In summary, the third conveying assembly 8 has a transmission direction opposite to that of the first conveying assembly 2. The third conveying assembly 8 is used to receive the hemp spinning output from the inner side of the second bending portion 462 and return it to the hemp spinning storage position for subsequent feeding.

[0093] As Figure 6 shown, a cutting edge 463 is provided at a position where the first bending portion 461 is close to the first conveying assembly 2. The cutting edge 463 is used to cooperate with the first pressing assembly to cut the ramie yarn during the switching process of the cutting assembly 4. Specifically:

[0094] When the cutting assembly 5 switches from the working state to the backfeeding state, one end of the ramie yarn is pressed by the first pressing assembly, and the first bending portion 461 quickly moves away from the first pressing assembly under the action of the torsion spring 410. Since the speed at which the first bending portion 461 moves away is greater than the conveying speed of the ramie yarn, a pulling effect is generated on the ramie yarn, and the ramie yarn is torn by the sharp cutting edge 463;

[0095] When the cutting assembly 5 switches from the backfeeding state to the working state, the first bending portion 461 quickly approaches the first pressing assembly and contacts the end of the first conveying assembly 2 under the action of the torsion spring 410. At this time, one end of the ramie yarn is still pressed by the first pressing assembly, and the ramie yarn is cut by relying on the punching force when the cutting edge 463 contacts the end of the first conveying assembly 2;

[0096] Of course, a dedicated cutter can also be provided and controlled by the PLC system to cut the ramie yarn during the switching process of the cutting assembly 4. The specific setting method is not limited here.

[0097] Embodiment 4:

[0098] During the backfeeding process of the ramie yarn, the thicker ramie yarns are still stacked together. If no separation treatment is carried out, they will still maintain the original state during subsequent reloading. The existing method is to separate them manually, but it is time-consuming and laborious;

[0099] This embodiment describes the structure and principle of separating the ramie yarn during the backfeeding process so that the ramie yarn can meet the requirements during subsequent production processes. Specifically, the following structure is added on the basis of Embodiment 3:

[0100] As Figure 2 、 Figure 6 and Figure 8 shown, a fixing seat 47 is fixedly installed in the middle of the two first side plates 12. A plurality of thorns 48 are fixedly installed at the lower end position of the fixing seat 47. The thorns 48 correspond to the inner side of the second bending portion 462, and a plurality of needle punching portions 481 for separating the ramie yarn are provided on the thorns 48. The plurality of needle punching portions 481 are uniformly arranged in both the length and circumferential directions of the thorns 48, so that the needle punching portions 481 cover the whole of the thorns 48;

[0101] As Figures 8 - 10As shown, a plurality of insertion blocks 464 are provided at one end of the second bending portion 462 away from the fixed shaft 45. At the same time, the insertion blocks 464 are divided into two as a group, and a plurality of slots 466 are provided at the opposite positions of every two groups of insertion blocks 464. And a plurality of pins 465 are installed in the plurality of slots 466. The pin 465 can be fixedly or movably installed with the slot 466. In this embodiment, an elastic body 467 is connected between the pin 465 and the slot 466 so that the pin 465 and the slot 466 are movably installed;

[0102] In this embodiment, four groups of needle-piercing portions 481 are evenly distributed along the circumferential direction of the needle 48, and the four groups of needle-piercing portions 481 are staggered corresponding to the four groups of pins 465 to form a comb-like structure for separating the hemp spinning;

[0103] In summary, when the cutting assembly 4 is in the retraction state, the bending plate 46 is fixed to the magnetic attraction portion 442. And in the retraction state, the second driving portion 41 still continuously reciprocates, but the PLC control system is used to reduce the reciprocating stroke of the second driving portion 41, so that the hemp spinning can be output from the inner side of the first bending portion 461 in this state, avoiding the problem that the bending plate 46 is pushed to the working position due to the too long stroke of the second driving portion 41, so that the hemp spinning is output from the outer side of the first bending portion 461;

[0104] As the second driving portion 41 continuously reciprocates, it drives the second bending portion 462 to swing around the fixed shaft 45. And in the process of the second driving portion 41 extending from the extended state to the retracted state, the second bending portion 462 rotates counterclockwise. Therefore:

[0105] When the second driving portion 41 is in the retracted state, the second bending portion 462 is located at a position close to the needle 48. At this time, the needle-piercing portion 481 and the pin 465 cooperate with each other to comb the hemp spinning at the upper end of the insertion block 464, so that the mixed hemp spinning is separated from each other, thus facilitating subsequent feeding;

[0106] And when the second driving portion 41 is in the extended state, the second bending portion 462 is located at a position away from the needle 48. At this time, the needle-piercing portion 481 and the pin 465 are separated from each other. And in the process of the needle-piercing portion 481 and the pin 465 being separated from each other, through the mutually staggered comb-like structure, the hemp spinning adhered to the needle-piercing portion 481 is separated, so as to facilitate subsequent separation operations.

[0107] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A feeding device for a combined carding machine, which is applied to a combined carding machine for hemp spinning. The feeding device comprises: a supporting component (1), which plays a supporting role; a first conveying component (2), which is installed on the supporting component (1) and is used for receiving hemp for spinning and conveying the hemp for spinning to a processing area; at least one set of material pressing components (3), which are arranged at the upper end of the first conveying component (2) and cooperate with the first conveying component (2) to compact the hemp for spinning; a cutting component (4), which is installed on the supporting component (1) and is used for cutting the compacted hemp for spinning; a pressing component (6), which is installed on the supporting component (1) and is used for further compacting the hemp for spinning to eliminate the rebound of the hemp for spinning during cutting and conveying; a loosening component (7), which is located at the end of the feeding device and is used for loosening the hemp for spinning; wherein, the material pressing components (3), the cutting component (4), the pressing component (6) and the loosening component (7) are arranged in sequence along the conveying direction of the hemp for spinning; the cutting component (4) comprises a second driving part (41) installed on the supporting component (1), a cutting knife (44) is arranged at the output end of the second driving part (41), the cutting knife (44) is adapted to reciprocate in the horizontal direction driven by the second driving part (41), and a cutting part (441) is arranged at a position of the cutting knife (44) far away from the second driving part (41); a fixed shaft (45) is installed on the supporting component (1), a bending plate (46) is arranged on the fixed shaft (45), a torsion spring (410) is installed between the bending arc of the bending plate (46) and the fixed shaft (45), and the bending plate (46) is adapted to rotate around the fixed shaft (45); the bending plate (46) has a first bending part (461) corresponding to the cutting part (441) and a second bending part (462) opposite to the first bending part (461); wherein: the first bending part (461) is adapted to move away from the cutting part (441) so that the cutting component (4) is in a working state, or move close to the cutting part (441) so that the cutting component (4) is in a backfeeding state; a magnetic suction seat (49) is installed on the supporting component (1), and the magnetic suction seat (49) is adapted to have magnetism in an energized state; a magnetic suction part (442) is arranged at the upper end of the cutting knife (44) at the cutting part (441), and the magnetic suction part (442) is adapted to have magnetism in an energized state; the bending plate (46) is made of iron. When the cutting component (4) is in a working state, the magnetic suction seat (49) and the bending plate (46) are magnetically fixed. When the cutting component (4) is in a backfeeding state, the magnetic suction part (442) and the bending plate (46) are magnetically fixed.

2. The feeding device for a combined carding machine according to claim 1, characterized in that: The first conveying component (2) includes a first driving part (21) installed on the support component (1). A third driving roller (25) is installed at the output end of the first driving part (21), and the third driving roller (25) is installed on the support component (1) by bearings; A second driving roller (24) is installed on the support component (1) by bearings, and a first conveying part (22) is drivingly connected to the second driving roller (24) and the third driving roller (25).

3. The feeding device for a combined carding machine according to claim 2, characterized in that: The pressing component (3) includes a first pressing component and a second pressing component arranged along the flax spinning conveying direction. A first gap is formed between the first pressing component and the first conveying component (2), and a second gap is formed between the second pressing component and the first conveying component (2); The height of the first gap is lower than the height of the second gap.

4. The feeding device for a combined carding machine according to claim 3, characterized in that: The first pressing component includes two first air springs (31) installed on the support component (1). A first bearing seat (32) is installed at the output end of the first air spring (31), and the first air spring (31) is adapted to drive the first bearing seat (32) to move in the vertical direction under the action of an external force; A first pressing roller (35) is installed on the first bearing seat (32), and the first pressing roller (35) is located directly above the second driving roller (24).

5. The feeding device for a combined carding machine according to claim 3, characterized in that: The second pressing component includes a second air spring (33) installed on the support component (1). A second bearing seat (34) is installed at the output end of the second air spring (33), and the second air spring (33) is adapted to drive the second bearing seat (34) to move in the vertical direction under the action of an external force; A second pressing roller (36) is installed on the second bearing seat (34). A first driving roller (23) is installed on the support component (1) by bearings, and the second pressing roller (36) is located directly above the first driving roller (23).

6. The feeding device for a combined carding machine according to claim 1, characterized in that: A fixed seat (47) is installed on the support component (1). A plurality of groups of thorns (48) are installed on the fixed seat (47), and a plurality of groups of needle punching parts (481) for separating flax spinning are arranged on the thorns (48); A plurality of groups of inserting blocks (464) are arranged at one end of the second bending part (462) far from the fixed shaft (45). A slot (466) is arranged on the inserting block (464), and an inserting needle (465) is installed in the slot (466). The needle punching part (481) and the inserting needle (465) are staggered corresponding to each other to form a comb-like structure for separating flax spinning.

7. The feeding device for a combined carding machine according to claim 6, characterized in that: A third conveying component (8) is arranged below the discharging end of the second bending part (462).

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