Mesh belt connector and mesh belt

Abstract

The mesh belt connector is applied to a mesh belt, the mesh belt connector comprises a first mesh belt connector part, a second mesh belt connector part and a connecting part, the first mesh belt connector part comprises a first wrapping part and a first connector part which are fixedly connected, and the second mesh belt connector part comprises a second wrapping part and a second connector part which are fixedly connected; the first coating part can coat the end part, opposite to the first coating part, of the mesh belt main body, the second coating part can coat the end part, opposite to the second coating part, of the mesh belt main body, and the first connector part and the second connector part can be engaged with each other; the first connector part and the second connector part are each provided with a hollow structure allowing the connecting part to penetrate through. After the first connector part and the second connector part are meshed, the connecting part can penetrate through the hollow structures of the first connector part and the second connector part to fixedly connect the first mesh belt connector part and the second mesh belt connector part.

Description

Technical Field

[0001] The present application relates to the technical field of belt equipment parts, and in particular to a mesh belt joint and a mesh belt for filtering, drying and other equipment. Background Art

[0002] For filtering and separation technologies such as solid-liquid separation, solid-gas separation, and gas-liquid separation, the equipment that can be used includes filtering equipment or drying equipment. With the improvement of environmental protection and product precision requirements in recent years, traditional belt filter presses have gradually been replaced by filtering equipment such as high-pressure or even ultra-high-pressure belt filter presses; the operating temperature range of traditional drying equipment is also getting wider and wider, so the parameters such as the stability, universality, and service life of the mesh belt body are getting higher and higher.

[0003] For example, the mesh belt body of the belt press filter is mainly composed of two woven mesh belts or spiral mesh belts. The mesh belt body is installed on the equipment as an annular mesh belt connected end to end. Therefore, one or more mesh belt joints are inevitably produced. Due to different connection and production methods, the mesh belt joint position loses the strength of the original mesh belt to varying degrees, becoming a shortcoming during the use of the mesh belt.

[0004] In traditional belt filter presses, the joints of woven mesh belts are mainly metal steel buckle joints, that is, a buckle machine is used to press the customized buckles onto the two ends of the mesh belt so that they can be spliced ​​together to form a ring. During the pressing process, the nail feet of the buckles will penetrate into the mesh belt, thereby fixing it on the mesh belt, and glue is used at the nail foot position to increase the tensile strength of the joint.

[0005] However, the use range of such mesh belt joints is limited and the service life is short. During the use of the mesh belt, the joints often bend, bulge, fold, wear and tear, etc., which seriously affect the service life of the mesh belt. During the use of high-pressure or even ultra-high-pressure belt filter press mesh belts, as the tension increases, the mesh belt joints are deformed and damaged seriously. Traditional mesh belt joints are difficult to withstand high-intensity tension, which further shortens their service life. Utility Model Content

[0006] The present application provides a mesh belt joint, which is applied to a mesh belt, wherein the mesh belt has a mesh belt main body, and is characterized in that the mesh belt joint comprises a first mesh belt joint member, a second mesh belt joint member and a connecting portion, wherein the first mesh belt joint member comprises a first covering portion and a first joint portion which are fixedly connected, and the second mesh belt joint member comprises a second covering portion and a second joint portion which are fixedly connected; the first covering portion can cover an end portion of the mesh belt main body arranged relative to the first covering portion, the second covering portion can cover an end portion of the mesh belt main body arranged relative to the second covering portion, and the first joint portion and the second joint portion can engage with each other;

[0007] The first joint part and the second joint part are both provided with a hollow structure capable of allowing the connecting part to pass through; after the first joint part and the second joint part are engaged, the connecting part can pass through the hollow structures of the first joint part and the second joint part to fix the first mesh belt joint part and the second mesh belt joint part in connection.

[0008] Preferably, a first serration structure is formed at the end of the first joint part away from the first covering part, and a second serration structure is formed at the end of the second joint part away from the second covering part, the first serration structure and the second serration structure can engage with each other, and the first serration structure and the second serration structure both form the hollow structure.

[0009] Preferably, the first covering portion (21) and the first sawtooth structure are integrally provided; and / or the second covering portion (22) and the second sawtooth structure are integrally provided.

[0010] Preferably, the first mesh belt joint member is formed by folding the first base fabric member based on the first fold line of the first base fabric member; a plurality of first openings distributed in sequence are formed in the first base fabric member, the first fold line passes through the plurality of first openings in sequence, the solid parts of the plurality of first openings are folded along the first fold line to form the first serrated structure, and the solid parts of the first base fabric member located at both ends of the plurality of first openings are folded to form the first covering portion.

[0011] Preferably, the second mesh belt joint member is formed by folding the second base fabric member based on the second fold line of the second base fabric member; a plurality of second openings spaced apart in sequence are formed in the second base fabric member, the second fold line passes through the plurality of second openings in sequence, the solid parts of the plurality of second openings are folded along the second fold line to form the second serrated structure, and the solid parts of the second base fabric member located at both ends of the plurality of second openings are folded to form the second covering portion.

[0012] Preferably, the connecting portion is a circular, elliptical or special-shaped structure with arc-shaped sides.

[0013] Preferably, the connecting portion includes one or more through-wires.

[0014] Preferably, the first sawtooth structure comprises a plurality of first tooth-shaped portions arranged at intervals and a first interval formed between adjacent first tooth-shaped portions, and the second sawtooth structure comprises a plurality of second tooth-shaped portions arranged at intervals and a second interval formed between adjacent second tooth-shaped portions; the plurality of first tooth-shaped portions and the plurality of second tooth-shaped portions are arranged along the width direction of the filter mesh belt;

[0015] Preferably, the first toothed portion can cooperate with the second interval, and the second toothed portion can cooperate with the first interval.

[0016] Preferably, the first tooth-shaped portion is tightly fitted or loosely fitted with the second interval, and the second tooth-shaped portion is tightly fitted or loosely fitted with the first interval.

[0017] Preferably, a size of the first interval and / or the second interval along the interval arrangement direction is 3 to 30 mm.

[0018] Preferably, a size of the first interval and / or the second interval along the interval arrangement direction is 6-10 mm.

[0019] Preferably, the first tooth-shaped portion and / or the second tooth-shaped portion has a shape of one or more of a trapezoid, a rectangle, a rhombus and a hexagon.

[0020] Preferably, one end of the first covering portion fixedly connected to the first joint portion, and / or one end of the second covering portion fixedly connected to the second joint portion are both provided with a partition structure; the partition structure can be used to separate the first joint portion and the first covering portion, and / or to separate the second joint portion and the second covering portion; the partition structure is also used to fit the inner surface of the first covering portion or the second covering portion at the position where the partition structure is located.

[0021] The separation structure is formed by heat-melt welding, ultrasonic welding, gluing or sewing.

[0022] Preferably, after the separation structure separates the first joint portion and the first covering portion, or separates the second joint portion and the second covering portion, a side surface of the first covering portion or the second covering portion is V-shaped.

[0023] Preferably, when the partition structure is formed by suturing, the partition structure includes a first suturing structure and a second suturing structure, wherein the first suturing structure passes through the first covering portion; and the second suturing structure passes through the second covering portion.

[0024] Preferably, the first covering portion covers the end of the mesh belt body arranged relative to the first covering portion, and the covering is formed by hot-melt welding connection, ultrasonic welding connection, adhesive connection or suturing connection.

[0025] Preferably, the second covering portion covers the end of the mesh belt body arranged relative to the second covering portion, and the covering is formed by hot-melt welding connection, ultrasonic welding connection, adhesive connection or suturing connection.

[0026] Preferably, the first covering portion and / or the second covering portion are provided with sutures for suturing the ends of the mesh belt body, and the sutures are arranged in parallel along the same direction or along at least two intersecting directions.

[0027] Preferably, the line shape formed by sewing the sewing pieces along at least two intersecting directions includes one or more of a W shape, an N shape or an S shape.

[0028] Preferably, the suture piece passes through the first covering portion and a covering area of ​​the end of the mesh belt body arranged relative to the first covering portion, and the second covering portion and a covering area of ​​the end of the mesh belt body arranged relative to the second covering portion.

[0029] Preferably, the mesh belt joint satisfies at least one of the following characteristics:

[0030] The length of the first covering portion along the length direction of the mesh belt body is 20 to 100 mm;

[0031] One side of the first base fabric piece is equal to the width of the mesh belt body, and the other side connected to the first base fabric piece is 50 to 250 mm long;

[0032] The length of the second covering portion along the length direction of the mesh belt body is 20 to 100 mm;

[0033] One side of the second base fabric piece is equal to the width of the mesh belt body, and the other side connected to the second base fabric piece is 50 to 250 mm long;

[0034] The tensile strength of the mesh belt joint piece is 1000N / cm to 2500N / cm.

[0035] Preferably, two ends of the connecting portion form bending portions, and the bending portions can limit the relative positions of the connecting portion and the first connector and the second connector.

[0036] The present application also provides a mesh belt, which includes any of the mesh belt joints described above.

[0037] The present application also provides an application of a mesh belt, and the mesh belt is applied to at least a belt press, a belt filter, a vertical filter, a vacuum dryer and a conveyor.

[0038] The mesh belt joint provided in this application has the following beneficial effects:

[0039] 1. A first mesh belt joint member and a second mesh belt joint member that can be matched are provided in the mesh belt joint member, and a covering portion and a joint portion that are fixedly connected are provided on the mesh belt joint member, and the covering portion can cover the end of the mesh belt body that is arranged relative to the covering portion, and the end of the mesh belt body is covered and fixed; the tensile strength of the joint portion can be improved by the fixed connection between the covering portion and the joint portion, and at the same time, the consistency of the connection between the mesh belt body, the covering portion and the joint portion is achieved, and the problem of bending and deformation of the joint is further prevented;

[0040] 2. After the first joint part and the second joint part are engaged, the connecting part passes through the hollow structure of the joint part, and the connecting part penetrates straight in the width direction of the mesh belt to disperse the pulling external force, which can further ensure the stability of the engagement of the first joint part and the second joint part during actual use of the mesh belt joint.

[0041] 3. The first joint part and the second joint part are engaged with each other, and the first mesh belt joint piece and the second mesh belt joint piece are perfectly matched and spliced ​​together, which not only realizes the continuation of the mesh belt in the length direction, but also eliminates the large splicing gap between the nail buckles and screw rings in the prior art, so that the mesh belt joint will not leak mud, leak vacuum and other problems when in use; in addition, through the hollow structure of the first joint part and the second joint part through the connecting part, on the one hand, the first joint part and the second joint part can be more firmly engaged, and on the other hand, it can also disperse the pulling force of the machine on the mesh belt and improve the tensile strength of the joint.

[0042] 4. The present application also forms a plurality of openings spaced in sequence along the fold line in the base fabric piece used for the joint, folds the base fabric piece along the fold line, and forms a serrated structure after the solid parts of the plurality of openings are folded, which is used for the bite of the joint part; and forms a covering part after the solid parts at both ends of the plurality of openings in the length direction of the base fabric piece are folded, which is used for covering the end of the filter mesh belt; since the base fabric piece is integrally arranged, an integrally arranged covering part and a joint part with a serrated structure are formed, which not only optimizes the production process of the mesh belt joint, but also enhances the tensile strength of the mesh belt joint, thereby improving the service life.

[0043] 5. The present application also provides a partition structure at one end where the covering part and the joint part are fixedly connected, so as to further separate the covering part and the joint part through the partition structure, and further fix the serrated structure of the joint part; at the same time, the partition structure is provided along the width direction of the mesh belt, so as to ensure that when the joint parts are engaged with each other and the connecting part passes through the hollow structure of the joint part, the joint part and the covering part are aligned straight in the width direction of the mesh belt, so that the joint part is evenly stressed and is not easily deformed by external force.

[0044] 6. The present application also covers a covering area of ​​the end of the mesh belt main body arranged relative to the covering part, and the covering part and the end of the mesh belt main body in the covering area are covered and connected by hot-melt welding, ultrasonic welding, adhesive connection or suturing connection. Furthermore, by providing sutures arranged along at least two intersecting directions at the connection point of the suturing connection, the sutures are at least partially intersected, thereby improving the stability of the connection between the covering part and the end of the mesh belt main body in the covering area.

[0045] 7. The first base fabric piece and the second base fabric piece of the mesh belt joint of the present application are flexible, and will not cause excessive stress in the local position of the joint during the use of the joint, so that the mesh belt joint has the properties of resistance to bending deformation, arching and folding, wear and tear, high tensile strength, long service life, and can be applied to various working conditions of the mesh belt.

[0046] 8. The mesh belt using the mesh belt joint of the present application has a wide range of applicability and can be used in various types of machines such as high-pressure belt filter presses, medium-pressure belt filter presses, ordinary belt filter presses, belt filters and vertical filters. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0048] Figure 1 A schematic structural diagram of a mesh belt joint provided in an embodiment of the present application.

[0049] Figure 2 A front view of a mesh belt joint engagement structure embodiment provided in an embodiment of the present application.

[0050] Figure 3 A bottom view of an embodiment of a mesh belt joint engagement structure provided in an embodiment of the present application.

[0051] Figure 4 This is a schematic structural diagram of the first mesh belt joint member provided in an embodiment of the present application.

[0052] Figure 5 A schematic structural diagram of another embodiment of the first mesh belt connector provided in an embodiment of the present application.

[0053] Figure 6 A schematic diagram of another embodiment of a mesh belt joint engagement structure provided in an embodiment of the present application.

[0054] Among them, the reference numerals in the figure correspond to:

[0055] 11 - first mesh belt joint piece 12 - second mesh belt joint piece 21 - first covering portion 22 - second covering portion 31 - first joint portion 32 - second joint portion 4 - partition structure 5 - suture piece 6 - connection portion. DETAILED DESCRIPTION

[0056] In order to enable those skilled in the art to better understand 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 part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0057] The term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present application. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is 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 therefore cannot be understood as a limitation of the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may include one or more of the features explicitly or implicitly. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here.

[0058] Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the disclosure are approximations, the numerical values ​​set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective testing measurements.

[0059] When a numerical range is disclosed herein, the above range is deemed to be continuous and includes the minimum and maximum values ​​of the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values ​​of the range is included. In addition, when multiple ranges are provided to describe features or characteristics, the ranges can be merged. In other words, unless otherwise indicated, all ranges disclosed herein should be understood to include any and all sub-ranges included therein. For example, a specified range from "1 to 10" should be deemed to include any and all sub-ranges between a minimum of 1 and a maximum of 10. Exemplary sub-ranges of ranges 1 to 10 include, but are not limited to, 1 to 6.1, 3.5 to 7.8, 5.5 to 10, etc.

[0060] In order to facilitate the description of the advantages of the mesh belt joint in the embodiment of the present application, the technical solution in the embodiment of the present application is described below in conjunction with the accompanying drawings:

[0061] Please refer to Figure 1 , Figure 1 This is a structural schematic diagram of a mesh belt joint component in an embodiment of the present application, the mesh belt joint component is applied to a filter mesh belt, the mesh belt joint includes a first mesh belt joint component 11, a second mesh belt joint component 12 and a connecting portion 6, the first mesh belt joint component 11 includes a first covering portion 21 and a first connecting portion 31 that are fixedly connected, the second mesh belt joint component includes a second covering portion 22 and a second connecting portion 32 that are fixedly connected, and the covering portion and the connecting portion are fixedly connected, which can effectively prevent the connecting portion from being bent when encountering external force during the use of the joint.

[0062] In some embodiments, the connection part 6 is composed of a circular or elliptical threading wire; it can also be composed of two or more threading wires to form a circular or elliptical connection part 6; it can also be composed of multiple threading wires to form a special-shaped structure with semicircular or semi-elliptical or other arc shapes on both sides and a rectangular middle. When the connection part passes through the hollow structure of the joint part, it further ensures that the joint part and the covering part are aligned straight in the width direction of the mesh belt, ensuring that the joint part is evenly stressed and not easily deformed by external forces.

[0063] The first covering portion 21 can cover the end of the mesh belt body arranged relative to the first covering portion 21, and the second covering portion 22 can cover the end of the mesh belt body arranged relative to the second covering portion 22. The covering portion can effectively cover and connect the mesh belt body of the filter mesh belt with the mesh belt joint.

[0064] The first joint portion 31 and the second joint portion 32 can be engaged with each other, and a hollow structure is provided in each of the first joint portion 31 and the second joint portion 32 , and the hollow structure can accommodate the connection portion 6 to pass through.

[0065] After the first joint part 31 and the second joint part 32 are engaged, the connecting part 6 is passed through the hollow structure of the first joint part 31 and the second joint part 32 to fix the first mesh belt joint piece and the second mesh belt joint piece to improve the tensile strength of the joint part.

[0066] In some embodiments, the first joint portion 31 and the second joint portion 32 can engage with each other because a first serrated structure is formed at the end of the first joint portion 31 that faces away from the first covering portion 21, and a second serrated structure is formed at the end of the second joint portion 32 that faces away from the second covering portion 22. The first serrated structure and the second serrated structure engage with each other, thereby engaging and splicing the first mesh belt joint member and the second mesh belt joint member together.

[0067] In some embodiments, a woven multifilament fabric is used as the first base fabric member of each basic component of the first mesh belt joint member, Figure 4-5 As shown, along the first fold line 7 of the first base fabric piece, the first base fabric piece can be folded to form a first mesh belt joint piece 11; along the first fold line 7 of the first base fabric piece, a plurality of first openings such as 50 to 100 are formed in the first base fabric piece and are spaced apart in sequence, and the first fold line 7 can sequentially penetrate these first openings, and the solid parts of the plurality of first openings are folded along the first fold line 7 to form a first sawtooth structure with a hollow structure, and the solid parts at both ends of the plurality of first openings on the first base fabric piece are folded to form a first covering portion 21; in summary, the first covering portion 21 and the first sawtooth structure are integrally arranged and are both composed of the first base fabric piece. Specifically, the first fold line 7 can be located in the middle of the first base fabric piece or at any foldable position of the first base fabric piece.

[0068] Correspondingly, a woven multifilament fabric is used as the second base fabric of each basic component of the second mesh belt joint piece. Along the second fold line of the second base fabric, the second base fabric can be folded to form the second mesh belt joint piece 12; along the second fold line of the second base fabric, 50 to 100 multiple second openings are formed in sequence and spaced apart on the second base fabric, and the second fold line can pass through these second openings in sequence, and the solid parts of the multiple second openings are folded along the second fold line to form a second sawtooth structure with a hollow structure, and the solid parts of the two ends of the multiple second openings on the second base fabric are folded to form a second covering part 22; in summary, the second covering part 22 and the second sawtooth structure are integrally arranged and both consist of the second base fabric. Specifically, the second fold line can be located in the middle of the second base fabric or at any foldable part of the second base fabric.

[0069] A woven multifilament fabric is used as the base fabric of the mesh belt joint of the present application. During the process of making the joint, its original flexibility is still maintained, and excessive stress will not be caused in the local position of the joint during the use of the joint. The mesh belt joint has the properties of resistance to bending deformation, arching and folding, wear and tear, high tensile strength, long service life, and can be applied to various working conditions of the mesh belt.

[0070] In some embodiments, the shapes of the first opening and the second opening are symmetrical figures along their respective fold lines, and may be one or more of a trapezoid, a rectangle, a rhombus, a hexagon, a biphenyl ring, or other axially symmetrical figures. The number of the first opening and the second opening may be set according to specific needs, and is not limited to 50 to 100. The processing methods of the openings may be laser cutting, hot melt cutting, cold cutting with a tool, and the like. After the shape of the first opening or the second opening is cut and processed, the base cloth is folded along the first fold line or the second fold line, and the first serrated structure or the second serrated structure is formed accordingly. In this way, the production process of the mesh belt joint piece can be simplified. Since the base cloth piece is arranged in one piece, the connection strength of the mesh belt joint is also enhanced, thereby improving the service life of the mesh belt joint.

[0071] In some embodiments, the first sawtooth structure includes a plurality of first teeth arranged at intervals and first intervals formed between adjacent first teeth, and the second sawtooth structure includes a plurality of second teeth arranged at intervals and second intervals formed between adjacent second teeth.

[0072] In some embodiments, in order to better engage, the second opening and the first opening can be complementary figures, and the shape of the first toothed portion can be filled into the shape of the second opening after folding, so that the first toothed portion can fit tightly with the second interval. For example, the first base fabric piece and the second base fabric piece are processed so that the shape of the first toothed portion is complementary to the shape of the second opening after folding, or the shape of the first toothed portion can be filled into the shape of the second opening after folding. After the first joint portion 31 and the second joint portion 32 engage, the connecting portion 6 is passed through the hollow structure of the first serrated structure and the second serrated structure to further strengthen the engagement strength of the serrated structure, and also to achieve the continuation of the mesh belt in the length direction, and the ends of the mesh belt are connected together to form an annular mesh belt.

[0073] Specifically, the shape of the first tooth-shaped portion may be one or more of a trapezoid, a rectangle, a rhombus and a hexagon.

[0074] In some embodiments, the shape of the first tooth-shaped portion can be partially filled into the shape of the second opening after folding, so that the first tooth-shaped portion can fit with the second interval gap. After the first joint portion 31 and the second joint portion 32 are engaged, the connecting portion 6 is passed through the hollow structure of the first serrated structure and the second serrated structure to further strengthen the engagement strength of the serrated structure, and also to achieve the continuation of the mesh belt in the length direction, and to connect the ends of the mesh belt together to form an annular mesh belt. The gap of the clearance fit here is smaller than the particle size of the mud and sand. Since the connecting portion 6 is inserted into the hollow structure of the tooth-shaped portion, the stability of the clearance fit is guaranteed, and it is guaranteed that the mesh belt joint will not leak mud when in use.

[0075] The size of the first interval and the second interval along the interval arrangement direction is 3 to 30 mm.

[0076] Specifically, the dimensions of the first interval and the second interval along the width direction of the mesh belt can be 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 20, 22, 23, 28, 29, 30 mm, etc.

[0077] In some embodiments, one side of the first base fabric piece and / or the second base fabric piece is equal to the width of the mesh belt body, and the other side connected thereto is 50 to 250 mm in length, specifically, 50, 60, 80, 90, 100, 120, 150, 160, 180, 190, 200, 220, 230, 240, 250 mm, etc.;

[0078] After the first base fabric piece and / or the second base fabric piece are folded, the length of the first covering portion 21 and / or the second covering portion 22 formed is retained to be 20-100 mm, specifically, 20, 50, 60, 80, 90, 100 mm.

[0079] In some embodiments, reference Figure 1 The first covering portion 21 and the first joint portion 31 are provided with a partition structure 4, and the partition structure 4 is arranged at one end where the first covering portion 21 and the first joint portion 31 are fixedly connected. The second covering portion 22 and the second joint portion 32 are also provided with a partition structure 4 at one end where the second joint portion 32 is fixedly connected. The partition structure 4 can be used to separate the first joint portion 31 and the first covering portion 21, or can be used to separate the second joint portion 32 and the second covering portion 22, and can be used to fit the inner surface of the first covering portion or the second covering portion at the location where the partition structure is located. The separation method includes hot melt welding, ultrasonic welding, gluing or sewing.

[0080] The following takes the example of the separator 4 separating the first joint portion 31 and the first covering portion 21 to introduce the formation method of the separation structure 4:

[0081] When hot melt welding is used as the separation method, the first mesh belt joint part 11 is placed on the work surface, and then the temperature of the hot welding knife is set at 350-400°C and heating is started. After the temperature is reached, the hot welding knife is placed on one end where the first covering part 21 and the first joint part 31 are fixedly connected. The hot welding knife is quickly taken out after the part is pressed together for melting and bonding. The second joint part 32 and the second covering part 22 are separated at the fused bonding part. After separation, the side surface of the first covering part 21 is V-shaped.

[0082] When ultrasonic welding is used as the separation method, the first mesh belt joint part 11 is placed on the work surface, and an ultrasonic electric spot welder is used to arrange it in one to three rows at one end where the first covering part 21 and the first joint part 31 are fixedly connected. A welding point is made every 10 mm, and the two sides of the first base cloth part corresponding to the location are welded together. After welding and bonding, the welding point separates the first joint part 31 and the first covering part 21, and the side surface of the first covering part 21 is V-shaped.

[0083] When gluing is used as the separation method, place the first mesh belt joint part 11 on the work surface, and evenly apply the special polymer adhesive glue to the area to be separated at one end where the first covering part 21 and the first joint part 31 are fixedly connected. Then, the area is pressed with a pressing device. After the glue is completely cured, the pressing device is opened to separate the first covering part 21 and the first joint part 31. The side surface of the first covering part 21 is V-shaped.

[0084] When the separation method is sewing, refer to Figure 2-3 A first mesh belt joint part 11 is placed on the work surface, and a sewing machine is used to sew one end of the first covering part 21 fixedly connected to the first joint part 31. The sewing direction is along the width direction of the mesh belt to form a first sewing structure 41. The first sewing structure 41 passes through the base cloths on both sides of the first covering part 21 to separate the first covering part 21 from the first joint part 31. The side surface of the first covering part 21 is V-shaped.

[0085] After the separation structure separates the connection between the covering part and the joint part, it can not only separate the covering part and the joint part, but also further fix the joint part to prevent the joint part from deformation, shaking and other problems when it is engaged and connected, or the connecting part passes through the hollow structure of the joint part. Moreover, for the covering part formed by folding the base cloth, the covering part can align and fit its own inner surface at the location of the separation structure.

[0086] In some embodiments, for the covering portion and the end of the mesh belt body disposed opposite to the covering portion, the covering is formed by heat-melt welding, ultrasonic welding, adhesive bonding or sewing.

[0087] The following takes the first covering portion 21 and the end covering of the mesh belt body arranged relative to the first covering portion as an example to introduce the forming method of the covering:

[0088] When hot-melt welding is used as the wrapping connection method, the first wrapping part 21 is flatly wrapped on the end of the mesh belt on the work surface, and then the temperature of the hot welding knife is set at 350-400℃, and heating is started. After the temperature is reached, the hot welding knife is placed in the middle of one layer of the wrapping part base cloth and the end of the mesh belt body, and the two are pressed together to melt and separate, and then the hot welding knife is quickly taken out, and the first wrapping part of the joint is pressed at the same time to make the contact surfaces of the two merge into one; the other layer of the base cloth of the first wrapping part is welded to the other side of the end of the mesh belt body according to the same operation.

[0089] When ultrasonic welding is used as the covering connection method, the first covering part 21 of the joint is flatly covered on the end of the mesh belt on the work surface, and an ultrasonic electric spot welder is used to evenly divide one side of the first base cloth into three rows, and a welding point is made every 10 mm. The base cloth of the first covering part is welded to one side of the end of the mesh belt body, and the other side of the base cloth of the joint covering part is welded to the other side of the end of the mesh belt body by the same operation.

[0090] When the wrapping connection method adopts gluing, evenly apply the special adhesive glue of polymer material to the two sides of the end of the mesh belt body to be covered on the work surface, and then flatly cover the first covering part on both sides of the mesh belt end, press the bonding area with a pressing device, and open the pressing device after the glue is completely cured, so that the inner surface of the base cloth of the first covering part can be bonded to the two bonding surfaces of the mesh belt.

[0091] When the covering connection method adopts the suturing connection, the first covering part is flatly covered on the end of the mesh belt body at the end of the mesh belt on the work surface, and a suturing machine is used to pass the suture piece 5 through the first covering part 21 and the covering area of ​​the end of the mesh belt body set relative to the first covering part 21, and the first covering part 21 and the covering area of ​​the end of the mesh belt body set relative to the first covering part 21 are sewed and connected as a whole.

[0092] Specifically, refer to Figure 6 The suture pieces 5 are sutured in parallel along the same direction. The suture directions of the suture pieces 5 in the covering area of ​​the first covering part and the suture directions of the suture pieces 5 in the covering area of ​​the first covering part can be the same or different, and both achieve the effect of fixing the covering part and the end of the mesh belt body in the covering area.

[0093] refer to Figure 2 The stitching piece 5 is stitched along at least two intersecting directions. Since the setting direction of the stitching piece 5 includes at least two intersections, the ends of the covering part and the mesh belt body can be firmly connected by using the intersection points and the triangular area formed by the intersection of the stitching piece. The stitching will not damage the tensile properties of the covering part base fabric and the mesh belt body. While maintaining the original strength of the mesh belt body, the covering part is added to cover the mesh belt body to form a whole, further stabilizing the tensile strength of the mesh belt joint.

[0094] Specifically, the shape formed by the stitching pieces after being stitched along at least two intersecting directions includes one or more of a W shape, an N shape, or an S shape. To further enhance the stability of the stitching pieces, the stitching pieces of these shapes can also intersect with stitching pieces in other directions, and the above shapes can also be stitched into shapes such as W, N, S, etc.

[0095] Compared with the existing mesh belt joints, the mesh belt joint of the present application simplifies the production process of the mesh belt joint, optimizes the joint method, and improves the tensile strength of the mesh belt joint. In some embodiments, the tensile strength of the mesh belt joint of the present application can reach 1000N / cm~2500N / cm. Specifically, in the above-mentioned different implementations, the tensile strength of the mesh belt joint can reach 1000, 1200, 1500, 2000, 2200, 2300, 2500N / cm. It achieves the effect of improving the tensile strength of the mesh belt as a whole without affecting the fabric structure of the mesh belt itself. Therefore, it can be widely used in filter mesh belts to adapt to different working conditions of machines such as high-pressure belt press filtration, medium-pressure belt press filtration, ordinary belt press filtration, belt filter, vertical filter, vacuum dryer, conveyor, etc.

[0096] The preferred embodiments of the present application are listed below to further describe the mesh belt joint of the present application.

[0097] Example

[0098] Please refer to Figure 2-3 , this embodiment provides a mesh belt joint for a high-pressure mesh belt of a high-pressure filtering device.

[0099] A woven multifilament fabric, such as an ultra-high density polyethylene fiber fabric, is used as the first base fabric piece of the first mesh belt joint member 11. The length of the first base fabric piece is set according to the selected width of the mesh belt body. A first fold line 7 is set in the middle of the first base fabric piece. Along the first fold line 7 in the middle of the first base fabric piece, 50 or 70 rectangular openings distributed in sequence along the first middle fold line are formed in the middle of the first base fabric piece by laser cutting, hot melt cutting, knife cold cutting or other processing methods.

[0100] A woven multifilament fabric, such as an ultra-high density polyethylene fiber fabric, is used as the second base fabric piece of the second mesh belt joint member 12. The length of the second base fabric piece is set according to the width of the selected mesh belt body. A second fold line is set in the middle of the second base fabric piece. Along the second fold line in the middle of the second base fabric piece, 50 or 70 rectangular openings corresponding to the first base fabric piece are formed in the middle of the second base fabric piece along the second middle fold line by laser cutting, hot melt cutting, knife cold cutting and other processing methods.

[0101] In other embodiments, the rectangular opening may be replaced by other symmetrical shapes, such as a trapezoid, a rhombus, and a hexagon.

[0102] The width of the rectangular opening can be set according to the required length of the first base fabric piece in the width direction of the mesh belt, and the size of the first base fabric piece can be determined according to the working conditions of different machines. For example, if the length of the first base fabric piece is 125 mm, the width of the rectangular opening can be set to 6 mm, 8 mm or 10 mm.

[0103] The first base fabric piece is folded along the first fold line 7, and the solid part of the rectangular opening is folded to form a first serrated structure with a hollow structure. The solid parts at both ends of the multiple rectangular openings along the length direction of the first base fabric piece are folded to form a first covering part, and the length of the covering part can be retained to be 50 mm. Ultra-high density polyethylene sewing thread is used to sew along the length direction of the base fabric piece at one end where the first covering part 21 is fixedly connected to the first joint part 31 to form a partition structure 4, and the inner surfaces of the two sides of the first covering part 21 are fitted at the location of the partition structure 4. At the location of the partition structure 4, the first covering part 21 is straightened, and the cross-section of the first covering part 21 can be V-shaped. The first covering part and the first serrated structure are integrally arranged to form a first mesh belt joint part 11.

[0104] A woven multifilament fabric is used as the second base fabric piece of the second mesh belt joint piece 12, and a second center fold line is set in the middle of the second base fabric piece. A graphic opening that engages with the first opening is preset in the cutting machine along the second center fold line in the middle of the second base fabric piece. The graphic opening is formed along the second center fold line in the middle of the second base fabric piece through laser cutting, hot melt cutting, tool cold cutting and other processing methods. The width of the rectangular opening can be set according to the required width of the mesh belt joint piece. For example, if the required width of the mesh belt joint piece is 125mm, the width of the rectangular opening can be set to 6mm, 8mm or 10mm, etc.

[0105] The second base fabric piece is folded along the second center fold line, and the solid part of the rectangular opening is folded to form a second serrated structure with a hollow structure. The solid parts at both ends of the multiple rectangular openings along the length direction of the second base fabric piece are folded to form a second covering part. Ultra-high density polyethylene sewing thread is used to sew and separate the second covering part 22 and the second joint part 32 at one end fixedly connected along the length direction of the base fabric to form a partition structure 4, and the inner surfaces of the two sides of the second covering part 22 are fitted at the location of the partition structure 4. At the location of the partition structure 4, the second covering part 22 is straightened, and the cross-section of the second covering part 22 can be V-shaped. The second covering part and the second serrated structure are integrally arranged to form a second mesh belt joint part 12.

[0106] The sawtooth structures of the first mesh belt joint member 11 and the second mesh belt joint member 12 correspond to each other and can be engaged with each other to splice the first mesh belt joint member 11 and the second mesh belt joint member 12 together.

[0107] The connecting portion 6 is inserted into the hollow structure of the first sawtooth structure and the second sawtooth structure to further fix the engaging structure.

[0108] On the other hand, the first covering portion 21 covers the end region of the mesh belt body arranged relative to the first covering portion 21, and the second covering portion 22 covers the end region of the mesh belt body arranged relative to the second covering portion 22, and ultra-high density polyethylene sewing thread is used to sew along at least two intersecting directions to sew and connect the first covering portion 21 and the covered end of the mesh belt body to form a W-shaped suture. In other embodiments, the suture may also be a cross or curved pattern such as an N-shape or an S-shape.

[0109] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A mesh belt joint, applied to a mesh belt, wherein the mesh belt has a mesh belt body, characterized in that: The mesh belt joint comprises a first mesh belt joint member (11), a second mesh belt joint member (12) and a connecting portion (6); the first mesh belt joint member (11) comprises a first covering portion (21) and a first connecting portion (31) which are fixedly connected; the second mesh belt joint member comprises a second covering portion (22) and a second connecting portion (32) which are fixedly connected; the first covering portion (21) can cover an end portion of the mesh belt body arranged relative to the first covering portion (21); the second covering portion (22) can cover an end portion of the mesh belt body arranged relative to the second covering portion (22); and the first connecting portion (31) and the second connecting portion (32) can engage with each other; The first joint portion (31) and the second joint portion (32) are both provided with a hollow structure capable of allowing the connecting portion (6) to pass through; after the first joint portion (31) and the second joint portion (32) are engaged, the connecting portion (6) can pass through the hollow structures of the first joint portion (31) and the second joint portion (32) to fix the first mesh belt joint member and the second mesh belt joint member in connection.

2. The mesh belt joint according to claim 1, characterized in that: The end of the first joint portion (31) facing away from the first covering portion (21) is formed with a first sawtooth structure, and the end of the second joint portion (32) facing away from the second covering portion (22) is formed with a second sawtooth structure, the first sawtooth structure and the second sawtooth structure are capable of interlocking with each other, and the first sawtooth structure and the second sawtooth structure both form the hollow structure.

3. The mesh belt joint according to claim 2, characterized in that: The first covering portion (21) and the first sawtooth structure are integrally arranged; And / or, the second covering portion (22) and the second sawtooth structure are integrally arranged.

4. The mesh belt joint according to claim 2, characterized in that: The first mesh belt joint member (11) is formed by folding the first base fabric member based on a first fold line (7) of the first base fabric member; The first base fabric piece is formed with a plurality of first openings which are spaced apart in sequence, the first fold line (7) passes through the plurality of first openings in sequence, the solid parts of the plurality of first openings are folded along the first fold line (7) to form the first serrated structure, and the solid parts of the first base fabric piece located at both ends of the plurality of first openings are folded to form the first covering portion (21).

5. The mesh belt joint according to claim 2, characterized in that: The second mesh belt joint member (12) is formed by folding the second base fabric member based on a second fold line of the second base fabric member; The second base fabric piece is formed with a plurality of second openings which are spaced apart in sequence, the second fold line passes through the plurality of second openings in sequence, the solid parts of the plurality of second openings are folded along the second fold line to form the second serrated structure, and the solid parts of the second base fabric piece located at both ends of the plurality of second openings are folded to form the second covering portion (22).

6. The mesh belt joint according to claim 2, characterized in that: The first sawtooth structure includes a plurality of first teeth arranged at intervals and a first interval formed between adjacent first teeth, and the second sawtooth structure includes a plurality of second teeth arranged at intervals and a second interval formed between adjacent second teeth; The first toothed portion can be matched with the second spacing, and the second toothed portion can be matched with the first spacing.

7. The mesh belt joint according to claim 6, characterized in that: The first tooth-shaped portion is tightly fitted or loosely fitted with the second interval, and the second tooth-shaped portion is tightly fitted or loosely fitted with the first interval.

8. The mesh belt joint according to claim 6, characterized in that: A size of the first interval and / or the second interval along the interval arrangement direction is 3 to 30 mm.

9. The mesh belt joint according to claim 6, characterized in that: The shape of the first tooth-shaped portion and / or the second tooth-shaped portion is one or more of a trapezoid, a rectangle, a rhombus and a hexagon.

10. The mesh belt joint according to claim 1, characterized in that: The first covering portion (21) and / or the first joint portion (31) is provided with a separation structure (4); the separation structure (4) is used to separate the first joint portion (31) and the first covering portion (21), and / or to separate the second joint portion (32) and the second covering portion (22).

11. The mesh belt joint according to claim 10, characterized in that: The separation structure (4) is formed by heat-melt welding, ultrasonic welding, gluing or sewing.

12. The mesh belt joint according to claim 1, characterized in that: The mesh belt joint meets at least one of the following characteristics: The first covering portion (21) covers the end of the mesh belt body arranged relative to the first covering portion (21), wherein the covering is formed by hot-melt welding, ultrasonic welding, adhesive bonding or sewing; The second covering portion (22) covers the end of the mesh belt body arranged relative to the second covering portion (22), and the covering is formed by hot-melt welding connection, ultrasonic welding connection, adhesive connection or sewing connection.

13. The mesh belt joint according to claim 12, characterized in that: The first covering portion and / or the second covering portion are provided with suturing pieces (5) for suturing the ends of the mesh belt body, and the suturing pieces (5) are arranged in parallel along the same direction or along at least two intersecting directions.

14. The mesh belt joint according to any one of claims 1 to 13, characterized in that: The mesh belt joint meets at least one of the following characteristics: The length of the first covering portion (21) along the length direction of the mesh belt body is 20 to 100 mm; The length of the second covering portion (22) along the length direction of the mesh belt body is 20 to 100 mm; The tensile strength of the mesh belt joint is 1000N / cm to 2500N / cm.

15. The mesh belt joint according to claim 4, characterized in that: One side of the first base fabric piece is equal to the width of the mesh belt body, and the other side connected to the first base fabric piece is 50-250 mm in length.

16. The mesh belt joint according to claim 5, characterized in that: One side of the second base fabric piece is equal to the width of the mesh belt body, and the other side connected to the second base fabric piece is 50-250 mm in length.

17. The mesh belt joint according to claim 1, characterized in that: Both ends of the connecting portion (6) form bending portions, and the bending portions are capable of limiting the relative positions between the connecting portion (6) and the first joint portion (31) and the second joint portion (32).

18. The mesh belt joint according to claim 1, characterized in that: The connecting portion (6) is a circular, elliptical or special-shaped structure with two arc-shaped sides.

19. A mesh belt, characterized in that: The mesh belt comprises the mesh belt joint according to any one of claims 1 to 18.

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