Removing mechanism for broken needle of aerogel felt needling

Abstract

The mechanism for removing the broken needle of the aerogel felt needling comprises a magnetic force detection unit and an operation station, the aerogel felt is conveyed from bottom to top, a detection area formed by the magnetic force detection unit is arranged up and down, the operation station comprises an operation platform, an ejector pin component and a magnetic attraction component, the ejector pin component extends in the width direction of the aerogel felt, and the magnetic attraction component extends in the width direction of the aerogel felt. The magnetic attraction part is arranged on the back face and / or the front face of the aerogel felt and abuts against the back face and / or the front face of the aerogel felt so as to eject broken needles out of the aerogel felt forwards and backwards for multiple times in the tensioning process, and the magnetic attraction part gets close to the broken needles and emits the broken needles out of the aerogel felt and magnetically attracts the broken needles ejected out of the aerogel felt. According to the utility model, on one hand, the interweaving seam of the broken needle and the corresponding felt cloth is expanded by adopting a repeated propping and touching mode, and then the broken needles with different lengths are quickly and accurately removed through magnetic adsorption; on the other hand, on the basis of broken needle removal in the previous procedure, the probability that corresponding felt cloth needs to be manually pulled out after detection is greatly reduced, and the purposes of increasing the yield and improving the efficiency are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of new fiber and composite material preparation, and particularly relates to a removing mechanism for broken needles in needled aerogel felt. Background Art

[0002] At present, the production line of aerogel felt usually consists of pretreatment equipment, feeding equipment, needle punching equipment, heat setting equipment, trimming and winding equipment, etc. Among them, the needle punching equipment is the core part of the production line, including a pre-needle punching machine, a positive needle punching machine, a reverse needle punching machine, etc. The fibers are intertwined to form a felt through the needle punching action.

[0003] However, during the needle punching process, broken needles are inevitable. Therefore, basically, on-line broken needle detection is required after needle punching. According to whether there is a broken needle (judged based on the magnetic adsorption method), once there is a broken needle, the felt cloth in the corresponding detection area is adsorbed and relatively attached to the magnetic component, then the machine stops, and then the operator manually pulls out the broken needle.

[0004] Obviously, the above operation of removing broken needles still has the following difficulties:

[0005] 1) Since the felt cloth is an intertwined product, once it is adsorbed and pulled, the formed intertwined gaps will become smaller, increasing the difficulty of pulling out the broken needle;

[0006] 2) The magnetic adsorption is a whole-section adsorption. Since the broken needles are hidden in the felt cloth and the lengths of the broken needles are different, it not only increases the difficulty of manual removal, but also increases the probability of missed treatment of broken needles, thereby affecting the quality of the felt cloth. At the same time, it is not conducive to subsequent series of processing such as cutting and sewing. Content of the Utility Model

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an improved removing mechanism for broken needles in needled aerogel felt.

[0008] To solve the above technical problem, the utility model adopts the following technical solution:

[0009] A removing mechanism for broken needles in needled aerogel felt, which includes a magnetic detection unit and an operation station located on the transmission path of the aerogel felt. The aerogel felt is transmitted from bottom to top, and the detection areas formed by the magnetic detection unit are arranged vertically. In particular, the operation station includes an operation platform, a thimble component formed at the feeding end of the detection area, and a magnetic adsorption component corresponding to the thimble component. The thimble component extends along the width direction of the aerogel felt and abuts against the back and / or front of the aerogel felt to repeatedly push the broken needles out of the aerogel felt in the positive and negative directions while keeping the aerogel felt in tension. The magnetic adsorption component is close to the broken needles protruding from the outside of the aerogel felt and magnetically adsorbs the broken needles pushed out by the passing aerogel felt.

[0010] Preferably, the ejector pin component includes a plurality of ejector pin groups distributed step by step from bottom to top, and the magnetic suction component includes magnetic suction groups corresponding to the ejector pin groups one by one. Multiple collisions and adsorptions are adopted to remove the broken pins with the highest probability.

[0011] According to a specific implementation and preferred aspect of the utility model, each ejector pin group has the same structure, and the ejection force formed by the multiple ejector pin groups from bottom to top gradually increases. Due to the change in force, broken pins of different lengths are gradually ejected.

[0012] Preferably, each ejector pin group includes ejector pin seats at both ends of the aerogel felt in the width direction, and ejector pin modules installed between the two ejector pin seats, wherein there are multiple ejector pin modules, which are staggered and spaced in the transmission direction of the aerogel felt and the thickness direction of the aerogel felt, and the aerogel felt contacts the ejector pin modules from the front and back sides respectively and relatively tensions the aerogel felt. Based on this layout, the broken pins are repeatedly ejected to increase the interlaced gap, thereby facilitating magnetic removal.

[0013] In some specific embodiments, the aerogel felt transmission path formed by the plurality of ejector pin modules has at least one V-shaped sharp angle in its own axial orthographic projection, wherein the angle of the V-shaped sharp angle is inversely proportional to the formed resistance force. In other words, the resistance force is changed by changing the angle of the V-shaped sharp angle, wherein the smaller the angle, the greater the resistance force formed, therefore, the V-shaped sharp angle formed by each ejector pin group is variable.

[0014] According to another specific implementation and preferred aspect of the utility model, each magnetic attraction group is directly opposite to the V-shaped sharp corner formed by each ejector pin group, so that the magnetic attraction effect is the best and the probability of missing removal of broken needles is reduced.

[0015] Preferably, multiple magnetic suction groups are located on the same side of the aerogel felt and are all located outside the ejector pin seat. This facilitates assembly and later broken needle collection. Specifically, each magnetic suction group also includes a broken needle collection box located at the bottom, and the magnetic suction group is an electromagnet. Once the power is off, the broken needle falls into the broken needle collection box below.

[0016] In some specific embodiments, the magnetic attraction force formed by the magnetic attraction group from bottom to top increases step by step; at the same time or further, the distance formed by the magnetic attraction group from bottom to top and the corresponding ejector pin group also decreases step by step. Here, by changing the magnetic force and the distance of magnetic attraction, the long and short broken needles can be better attracted and removed, and the probability of missing broken needles can be reduced to the maximum extent.

[0017] In addition, the magnetic detection unit includes a mounting base, a magnetic transmission roller, and a magnetic sensor, wherein the magnetic sensor performs magnetic detection on the aerogel felt after being processed by the operating station and can give an alarm. In short, the magnetic detection unit is the last guarantee. As long as it is detected, the probability of broken needles in the aerogel felt is basically zero; and once an alarm is given, it means that it has failed to be adsorbed and removed. At this time, emergency treatment can only be carried out manually.

[0018] Due to the implementation of the above technical solution, the utility model has the following advantages compared with the prior art:

[0019] In the existing removal of broken needles, on the one hand, because the felt cloth is an interwoven product, once it is adsorbed and pulled, the interwoven gap formed will become smaller, increasing the difficulty of pulling out the broken needle; on the other hand, the magnetic adsorption is a whole section adsorption, because the broken needle is hidden in the felt cloth, and the broken needles are of different lengths, therefore, not only the difficulty of manual removal is increased, but also the probability of missing broken needles is increased, thereby affecting the quality of the felt cloth, and at the same time, it is not conducive to the subsequent series of processing such as cutting and sewing, etc., and the present application comprehensively designs a removal mechanism for aerogel felt needle-puncture broken needles, ingeniously solves the shortcomings and defects of the prior art, and adopts After the removal mechanism, the broken needles are processed before the detection, and the broken needles are repeatedly pushed in the forward and reverse directions and the corresponding magnetic suction layout is adopted to remove the broken needles of different lengths, so as to reduce the probability of the broken needles entering the detection area with the aerogel felt. Therefore, compared with the prior art, the utility model adopts the method of repeated pushing to expand the interlaced seams with the corresponding felt cloth by the broken needles, and then uses magnetic adsorption to quickly and accurately remove the broken needles of different lengths; on the other hand, based on the removal of broken needles in the previous process, the probability of manual removal of the corresponding felt cloth after detection is greatly reduced, thereby achieving the purpose of increasing production and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view schematic diagram of the broken needle removal mechanism of aerogel felt needle puncture in this embodiment;

[0021] Figure 2 for Figure 1 A left view schematic diagram of a local structure;

[0022] Figure 3 for Figure 1 A magnified schematic diagram of the local structure;

[0023] Wherein: 1. magnetic detection unit; 10. mounting seat; 11. magnetic transmission roller; 12. magnetic sensor; 2. operating station; 20. operating platform; 21. ejector component; 210. ejector assembly; a. ejector seat; b. ejector module;

[0024] 22. Magnetic component; 220. Magnetic group; M. Aerogel felt. DETAILED DESCRIPTION

[0025] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0026] In the description of the present application, it should be understood that the orientation or positional relationships indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0028] In the present application, unless otherwise clearly specified and limited, terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0029] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature. It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0030] As Figures 1 to 3 shown, the removing mechanism for the broken needles in the needling of the aerogel felt in this embodiment includes a magnetic force detection unit 1 and an operation station 2 located on the transmission path of the aerogel felt, wherein the aerogel felt M is transmitted from bottom to top, the detection areas formed by the magnetic force detection unit 1 are arranged vertically, and the operation station 2 includes an operation platform 20, a thimble component 21 formed at the feeding end of the detection area, and a magnetic attraction component 22 correspondingly arranged with the thimble component 21. The thimble component 21 extends along the width direction of the aerogel felt M and abuts against the back and / or front of the aerogel felt M to eject the broken needles in the aerogel felt M outwards in the positive and negative directions (left and right directions) multiple times while the aerogel felt M is in tension, and the magnetic attraction component 22 is close to the broken needles protruding out of the aerogel felt M and magnetically adsorbs the broken needles ejected by the passing aerogel felt M.

[0031] In some specific embodiments, the thimble component 21 includes a plurality of thimble groups 210 distributed step by step from bottom to top, and the magnetic attraction component 22 includes a magnetic attraction group 220 corresponding to each thimble group 210 one by one. By means of multiple abutments and attractions, the broken needles are removed with the highest probability.

[0032] In this example, there are two thimble groups 210 from bottom to top, namely the lower thimble group and the upper thimble group. The lower thimble group and the upper thimble group have the same structure and both include thimble seats a located at both ends in the width direction of the aerogel felt M and a thimble module b installed between the two thimble seats a. There are multiple thimble modules b, and they are staggeredly spaced in the transmission direction and the thickness direction of the aerogel felt M. The front and back of the aerogel felt M are respectively in contact with the thimble module b and the aerogel felt M is relatively tensioned. Based on this layout, the broken needles are ejected repeatedly to increase the interweaving gaps, thereby facilitating magnetic adsorption and removal.

[0033] Furthermore, at least one V-shaped sharp angle exists in the axial orthographic projection of the transmission path of the aerogel felt M formed by multiple thimble modules b, and the angle of the V-shaped sharp angle is inversely proportional to the formed resistance force. That is to say, the resistance force is changed by changing the angle of the V-shaped sharp angle. Among them, the smaller the angle, the greater the formed resistance force. Therefore, the V-shaped sharp angles formed by each thimble group are variable. In this example, the V-shaped sharp angle of the lower thimble group is larger than that of the upper thimble group. In other words, regardless of the number of thimble groups, the principle is that the ejection forces formed by the thimble groups from bottom to top gradually increase. Therefore, due to the change of the acting force, broken needles of different lengths are gradually ejected.

[0034] In this example, the thimble module b is cylindrical and there are three of them. At the same time, the three are spaced in the vertical and horizontal directions. At the same time, each magnetic attraction group 220 is respectively opposite to the V-shaped sharp angle formed by the thimble group. In this way, the best magnetic attraction effect is formed, and at the same time, the probability of missed removal of broken needles is reduced.

[0035] In some specific embodiments, multiple magnetic attraction groups 220 are located on the same side of the aerogel felt M and are all located outside the thimble seat a. It is convenient for assembly and later collection of broken needles. Specifically, each magnetic attraction group 220 further includes a broken needle collection box located at the lower part, and the magnetic attraction group is an electromagnet. Once powered off, the broken needles fall into the lower broken needle collection box.

[0036] In this example, the magnetic attraction forces formed by the magnetic attraction groups 220 from bottom to top gradually increase; simultaneously or further, the distances formed by the magnetic attraction groups 220 from bottom to top and the corresponding thimble groups also gradually decrease. Here, through the change of the magnetic force and the change of the distance of magnetic force adsorption, the long and short broken needles are more preferably adsorbed and removed, and the probability of missed broken needles is reduced to the greatest extent.

[0037] In addition, the magnetic force detection unit 1 includes a mounting seat 10, a magnetic force transmission roller 11, and a magnetic sensor 12. Among them, the magnetic sensor 12 performs magnetic force detection on the aerogel felt M processed at the operation station and can give an alarm. Briefly speaking, the magnetic force detection unit 1 is the last guarantee. As long as it is detected, the probability of broken needles in the aerogel felt is basically zero; moreover, once an alarm is given, it means that there are some that have not been adsorbed and removed. At this time, only manual emergency treatment can be carried out.

[0038] In summary, after adopting the removal mechanism, the broken needles are processed before the detection, and the broken needles are repeatedly pushed in the forward and reverse directions and the corresponding magnetic suction layout is adopted to remove the broken needles of different lengths, so as to reduce the probability of the broken needles entering the detection area with the aerogel felt. Therefore, compared with the prior art, the utility model adopts the method of repeated pushing to expand the interlaced seams with the corresponding felt cloth by the broken needles, and then removes the broken needles of different lengths quickly and accurately through magnetic adsorption; on the other hand, based on the removal of broken needles in the previous process, the probability of manual removal of the corresponding felt cloth after the detection is greatly reduced, so as to achieve the purpose of increasing production and efficiency; the third aspect is to use multiple frictions and adsorptions to remove the broken needles with the maximum probability, and at the same time, the ejection force formed by the multiple ejector pin groups from bottom to top gradually increases, and the broken needles of different lengths are gradually ejected by the change of the force; the fourth aspect is based on the fact that the angle of the V-shaped sharp angle is inversely proportional to the formed resistance force, that is, by changing the V-shaped The angle of the sharp corner is used to change the resistance force, wherein the smaller the angle, the greater the resistance force formed. Therefore, the V-shaped sharp angle formed by each ejector pin group is variable to meet actual needs (mainly according to the thickness of the aerogel felt); fifthly, the magnetic suction groups are located on the same side of the aerogel felt, and are all located on the outside of the ejector pin seat, which is convenient for assembly and later collection of broken needles. At the same time, the magnetic suction force formed by the magnetic suction groups from bottom to top gradually increases; then the distance formed by the magnetic suction groups from bottom to top and the corresponding ejector pin groups also gradually decreases. Here, through the change of magnetic force and the change of the distance of magnetic adsorption, the long and short broken needles are better adsorbed and removed, and the probability of missing broken needles is reduced to the maximum probability; sixthly, the magnetic detection unit is the last guarantee. As long as it is detected, the probability of broken needles in the aerogel felt is basically zero; and once an alarm is given, it means that they have failed to be adsorbed and removed. At this time, emergency processing can only be performed manually (this is also the actual significance of the layout operation platform, but the probability of occurrence is low).

[0039] The above detailed description of the utility model is intended to enable people familiar with the technology in this field to understand the content of the utility model and implement it. It is not intended to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A removal mechanism for broken needles in needled aerogel felt, which includes a magnetic force detection unit and an operation station located on the transmission path of the aerogel felt. The aerogel felt is transmitted from bottom to top, and the detection areas formed by the magnetic force detection unit are arranged vertically. It is characterized in that: The operation station includes an operation platform, a thimble component formed at the feeding end of the detection area, and a magnetic attraction component corresponding to the thimble component. The thimble component extends along the width direction of the aerogel felt and abuts against the back and / or front of the aerogel felt to eject the broken needles in the aerogel felt multiple times in the positive and negative directions while keeping the aerogel felt in tension and ejecting them outside the aerogel felt. The magnetic attraction component is close to the broken needles protruding outside the aerogel felt and magnetically adsorbs the broken needles ejected by the passing aerogel felt.

2. The removal mechanism for the broken needles in the needled aerogel felt according to claim 1, characterized in that: The thimble component includes multiple thimble groups distributed step by step from bottom to top, and the magnetic attraction component includes a magnetic attraction group corresponding to each thimble group.

3. The removing mechanism for the broken needles in the needled aerogel felt according to claim 2, characterized in that: Each of the thimble groups has the same structure, and the ejection forces formed by the multiple thimble groups from bottom to top gradually increase.

4. The removal mechanism for the broken needles in the needled aerogel felt according to claim 3, characterized in that: Each thimble group includes thimble seats located at both ends of the width direction of the aerogel felt and a thimble module installed between the two thimble seats. There are multiple thimble modules, which are staggeredly distributed at intervals in the transmission direction and the thickness direction of the aerogel felt. The aerogel felt contacts the thimble module from the front and back respectively and relatively tensions the aerogel felt.

5. The removal mechanism for broken needles in the needled aerogel felt according to claim 4, characterized in that: In the orthographic projection of the transmission path of the aerogel felt formed by multiple thimble modules in its own axial direction, there is at least one V-shaped sharp angle, and the angle of the V-shaped sharp angle is inversely proportional to the formed abutting force.

6. The removing mechanism for the broken needles in the aerogel felt needle punching according to claim 5, wherein: Each magnetic attraction group is respectively opposite to the V-shaped sharp angle formed by each thimble group.

7. The removing mechanism for the broken needles in the needled aerogel felt according to claim 6, characterized in that: Multiple magnetic attraction groups are located on the same side of the aerogel felt and are all located outside the thimble seats.

8. The removing mechanism for the broken needles of the aerogel felt by needling according to claim 7, wherein: The magnetic attraction forces formed by the magnetic attraction groups from bottom to top gradually increase.

9. The removal mechanism for broken needles in needling of aerogel felt according to claim 7 or 8, characterized in that: The distances formed by the magnetic attraction groups from bottom to top and the corresponding thimble groups also gradually decrease.

10. The removing mechanism for the broken needles of the aerogel felt needle punching according to claim 1, wherein: The magnetic force detection unit includes a mounting seat, a magnetic force transmission roller, and a magnetic sensor. The magnetic sensor performs magnetic force detection on the aerogel felt processed by the operation station and can give an alarm.

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