PET geogrid production device and method

Abstract

The invention provides a PET geogrid production device and method.The device comprises a first feeding assembly, a second feeding assembly, a collecting assembly and a welding assembly, the first feeding assembly and the second feeding assembly are located on the side face of the welding assembly, and the first feeding assembly is used for achieving feeding of PET grid warp units; the second feeding assembly is used for feeding the weft units of the PET grid, and the warp units are perpendicular to the weft units; the first feeding assembly and the second feeding assembly feed the warp units and the weft units to the welding assembly and then are used for welding the warp units and the weft units to form grids, and the collecting assembly is used for winding the welded grids. Wherein tensile ropes are arranged in the warp units and the weft units, and the warp units and the weft units are formed through injection molding of an injection molding machine; the method is mainly used for preparing the grating with good tensile strength.

Description

Technical Field

[0001] The present invention relates to the technical field of geogrid preparation, and particularly relates to a PET geogrid production device and method. Background Art

[0002] A geogrid is a material used in civil engineering. Due to its good long-term creep resistance and high tensile strength, it is widely used in projects such as roads, soft soil foundation reinforcement, and reinforced retaining walls. Geogrids are divided into four categories: plastic geogrids, steel-plastic geogrids, glass fiber geogrids, and polyester warp-knitted polyester geogrids.

[0003] The geogrid is a geocomposite material formed by a special coating process. The transverse fine grid belts are wound around multiple longitudinal thick grid belts, and the transverse ones are arranged facing each other in sequence to form a net structure. However, the inventor found that during the production and actual use, the longitudinal glass fibers are relatively stable, while the transverse grid belts are very prone to dislocation, resulting in a very uneven distance distribution between multiple rows of transverse grid belts, which in turn affects the uneven stress of the longitudinal grid belts. Local stress is relatively large and even fracture may occur, resulting in poor stability.

[0004] During the production of geogrids, since the plates need to be heated and stretched, but for some construction areas, geogrids with better tensile strength are required, and the existing geogrids in the prior art are not suitable for preparing geogrids with good tensile strength. Summary of the Invention

[0005] The purpose of the present invention is to provide a PET geogrid production device and method, which are mainly used to realize the preparation of geogrids with good tensile strength.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A PET geogrid production device includes a first feeding component, a second feeding component, a winding component, and a welding component. The first feeding component and the second feeding component are respectively located on the sides of the welding component. The first feeding component is used to feed the PET grid warp units, and the second feeding component is used to feed the PET grid weft units, and the warp units and the weft units are perpendicular to each other;

[0008] After the first feeding component and the second feeding component send the warp units and the weft units to the welding component, they are used to weld the warp units and the weft units to form a grid, and the winding component is used to wind up the welded grid;

[0009] Wherein, tensile ropes are arranged inside the warp units and the weft units, and the warp units and the weft units are formed by injection molding with an injection molding machine;

[0010] The specific production steps are as follows:

[0011] Step 1: Prepare the warp unit and the weft unit through an injection molding machine, and wind the warp unit and the weft unit using a roller to form a warp roll material and a weft roll material;

[0012] Step 2: Set the number of warp roll materials and weft roll materials according to the number of warps and wefts required for the grille, and sequentially rotate and install the warp roll materials on the first feeding component, and sequentially install the weft roll materials on the second feeding component;

[0013] Step 3: The material receiving component fixes the warp and winds it. After the weft unit in the weft roll material extends into the welding component, the welding component cuts the weft unit and then welds the warp unit and the weft unit together.

[0014] Furthermore, the welding component includes a frame, a base installed on the frame, an ultrasonic welding component installed on the frame above the base through a telescopic rod, and a cutting component installed on the ultrasonic welding component. A number of weft grooves are provided on the base, and the shape of the weft grooves matches the cross-section of the weft unit; the interior of the base is hollow, and a first relief groove and a second relief groove communicating with the weft grooves are provided on the base, and the positions of the first relief groove and the second relief groove correspond to the reinforcing rib strips on the warp unit; a first driving unit is provided inside the base, and after extending out of the first relief groove and the second relief groove, the first driving unit contacts the reinforcing rib strips on the warp unit and drives the warp unit to move in the weft grooves; a guiding component is provided on the base near the first feeding component side, and the guiding component is used to guide the warp unit.

[0015] Among them, a support plate is provided inside the base. The first driving unit includes a first rotating shaft, a second rotating shaft, a first runner, a second runner, and a driving motor. The first rotating shaft and the second rotating shaft are installed on the support plate. The first runner and the second runner are respectively fixedly installed on the first rotating shaft and the second rotating shaft, and teeth are provided on the sides of the first runner and the second runner. The driving motor is installed on the support plate and then connected to the first rotating shaft. The first rotating shaft and the second rotating shaft are connected through a transmission mechanism. After the first runner and the second runner respectively extend out of the first relief groove and the second relief groove, they contact the reinforcing rib strips on the weft unit and drive the weft unit.

[0016] Preferably, the ultrasonic welding component includes a mounting plate and a number of ultrasonic heads provided below the mounting plate. The ultrasonic heads correspond to the weft grooves provided on the base, the telescopic rod is fixedly connected to the mounting plate, and the cutting component is installed on the mounting plate.

[0017] Further, the cutting assembly includes a cutting tool and a second driving unit. A first tool clearance groove is provided on the mounting plate, and a second tool clearance groove is provided on the base. The cutting tool is connected to the second driving unit and extends into the second tool clearance groove after passing through the first tool clearance groove.

[0018] Among them, the second driving unit includes a mounting seat, a lead screw, a lead screw nut, a slider and a motor. The mounting seat is fixedly arranged on the mounting plate. The lead screw is rotatably mounted on the mounting seat and then connected to the motor. The slider is slidably mounted in the first tool clearance groove. The cutting tool is fixedly connected to the slider. The lead screw nut is fixedly arranged on the slider and is matched with the lead screw.

[0019] For further optimization, the ultrasonic welding assembly further includes a top plate. A guide hole is provided on the top plate, and a guide post is provided on the mounting plate. The guide post passes through the guide hole and is connected with an adjusting nut. A support spring is arranged between the top plate and the mounting plate, and the support spring is sleeved on the guide post.

[0020] Among them, a linear bearing is arranged in the guide hole.

[0021] In addition, the present invention also discloses a method for manufacturing a PET geogrid by using the above-mentioned PET geogrid production device.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention is mainly used to manufacture a grid internally embedded with a tensile rope. The warp unit and the weft unit are prepared by an injection molding machine, and the warp unit and the weft unit are wound by a roller to form a warp coil and a weft coil. The number of warp coils and weft coils is set according to the number of warps and wefts required for the grid. The warp coils are sequentially rotatably mounted on the first feeding assembly, and the weft coils are sequentially mounted on the second feeding assembly. The winding assembly fixes the warps and winds them. After the weft units in the weft coils extend into the welding assembly, the welding assembly cuts the weft units and then welds the warp units and the weft units together, which has the advantage of convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2This is a schematic diagram of the overall structure of the welding component of the present invention.

[0027] Figure 3 For the present invention Figure 2 front view.

[0028] Figure 4 This is a schematic diagram of the contact relationship between the first driving unit and the weft unit of the present invention.

[0029] Reference numerals:

[0030] 101 First feeding component, 102 Second feeding component, 103 Receiving component, 104 Welding component, 105 Warp unit, 106 Weft unit, 108 Frame, 109 Base, 110 Telescopic rod, 111 Ultrasonic welding component, 112 Cutting component, 113 Weft groove, 114 First relief groove, 115 Second relief groove, 116 Reinforcing rib, 117 First driving unit, 118 Guide component, 119 Support plate, 120 First rotating shaft, 121 Second rotating shaft, 122 First runner, 123 Second runner, 124 Driving motor, 125 Transmission mechanism, 126 Mounting plate, 127 Ultrasonic pressure head, 128 Cutter, 129 Second driving unit, 130 First tool relief groove, 131 Second tool relief groove, 132 Mounting seat, 133 Lead screw, 134 Slide block, 135 Motor, 136 Top plate, 137 Vertical roller, 138 Guide post, 139 Adjusting nut, 140 Support spring, 141 Mounting bracket, 142 Support roller. Detailed implementation manners

[0031] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and the description are regarded as being exemplary in nature rather than restrictive.

[0032] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "length", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present invention 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 should not be construed as a limitation to the embodiments of the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only 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 one or more of such features. In the description of the embodiments of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0034] In the embodiments of the present invention, unless otherwise clearly defined and limited, terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal connection or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0035] In the embodiments of the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0036] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0037] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] See Figures 1-4, this embodiment discloses a PET geogrid production device, including a first feeding component 101, a second feeding component 102, a winding component 103 and a welding component 104. The first feeding component 101 and the second feeding component 102 are respectively located on the sides of the welding component 104. The first feeding component 101 is used to feed the warp unit 105 of the PET geogrid, and the second feeding component 102 is used to feed the weft unit 106 of the PET geogrid, and the warp unit 105 and the weft unit 106 are perpendicular to each other;

[0039] After the first feeding component 101 and the second feeding component 102 send the warp unit 105 and the weft unit 106 to the welding component 104, they are used to weld the warp unit 105 and the weft unit 106 to form a geogrid, and the winding component 103 is used to wind the welded geogrid;

[0040] Among them, tensile ropes are arranged inside the warp unit 105 and the weft unit 106, and the warp unit 105 and the weft unit 106 are formed by injection molding with an injection molding machine;

[0041] The specific production steps are as follows:

[0042] Step 1: Prepare the warp unit 105 and the weft unit 106 with an injection molding machine, and wind the warp unit 105 and the weft unit 106 with rollers to form a warp coil and a weft coil;

[0043] Step 2: Set the number of warp coils and weft coils according to the number of warp and weft of the required geogrid, and sequentially rotate and install the warp coils on the first feeding component 101, and sequentially install the weft coils on the second feeding component 102;

[0044] Step 3: The winding component 103 fixes the warp and winds it. After the weft unit in the weft coil extends into the welding component 104, the welding component 104 cuts the weft unit 106 and then welds the warp unit 105 and the weft unit 106 together.

[0045] Among them, the welding assembly 104 includes a frame 108, a base 109 mounted on the frame 108, an ultrasonic welding assembly 111 mounted on the frame 108 and located above the base 109 through a telescopic rod 110, and a cutting assembly 112 mounted on the ultrasonic welding assembly 111. A number of weft wire grooves 113 are provided on the base 109, and the shape of the weft wire grooves 113 matches the cross-section of the weft wire unit 106; the inside of the base 109 is hollow, and a first relief groove 114 and a second relief groove 115 communicating with the weft wire grooves 113 are provided on the base 109, and the positions of the first relief groove 114 and the second relief groove 115 correspond to the reinforcing ribs 116 on the warp wire unit 105; a first driving unit 117 is arranged inside the base 109, and after the first driving unit 117 extends out of the first relief groove 114 and the second relief groove 115, it contacts the reinforcing ribs 116 on the warp wire unit 105 and drives the warp wire unit 105 to move in the weft wire grooves 113; a guiding assembly 118 is arranged on the base 109 near the first feeding assembly 101, and the guiding assembly 118 is used to guide the warp wire unit 105.

[0046] During use, after entering from the first warp feeding assembly 101, it passes through the guiding assembly 118 and enters above the base 109, and the warp wire unit 105 is connected to the winding assembly 103. By rotating the winding assembly 103, the winding of the warp wire unit 105 can be realized. The weft wire unit 106 enters the weft wire grooves 113 from the side. At this time, under the action of the first driving unit 117, the weft wire unit 106 can move in the weft wire grooves 113, and the weft wire unit 106 is cut off by the provided cutting assembly 112. At this time, the cut-off weft wire unit 106 will be located in the weft wire grooves 113. Since the reinforcing ribs 116 are provided on the weft unit, the purpose of guiding can be achieved, so that the cut-off weft wire unit 106 is static in the weft wire grooves 113. At this time, the ultrasonic welding assembly 111 moves towards the base 109, presses down the warp wire unit 105 and contacts the weft wire unit 106, and then performs ultrasonic welding. After the welding is completed, the ultrasonic welding assembly 111 resets. At this time, the winding assembly 103 winds the material, and then the weft wire unit 106 is re-fed. In this way, the automated production of the grille is realized by circulating in this way.

[0047] Among them, a support plate 119 is arranged inside the base 109. The first driving unit 117 includes a first rotating shaft 120, a second rotating shaft 121, a first runner 122, a second runner 123 and a driving motor 124. The first rotating shaft 120 and the second rotating shaft 121 are installed on the support plate 119. The first runner 122 and the second runner 123 are respectively fixedly installed on the first rotating shaft 120 and the second rotating shaft 121, and engaging teeth are arranged on the sides of the first runner 122 and the second runner 123. After the driving motor 124 is installed on the support plate 119, it is connected to the first rotating shaft 120. The first rotating shaft 120 and the second rotating shaft 121 are connected by a transmission mechanism 125. The first runner 122 and the second runner 123 respectively extend out of the first relief groove 114 and the second relief groove 115 and then contact the reinforcing rib 116 on the weft thread unit 106 to drive the weft thread unit 106.

[0048] The driving motor 124 is used to drive the first rotating shaft 120 and the second rotating shaft 121 to rotate, so as to drive the first runner 122 and the second runner 123. The engaging teeth on the first runner 122 and the second runner 123 contact the reinforcing rib 116 on the weft thread unit 106, so as to stably drive the weft thread unit 106 and realize the automatic feeding of the weft thread unit 106.

[0049] In actual use, both the first feeding component 101 and the second feeding component 102 can adopt the turntable feeder in the prior art, and its structure will not be described in detail here.

[0050] Furthermore, a warp thread unit tensioning mechanism is arranged between the first feeding component 101 and the welding component 104. Since the ultrasonic welding component 111 presses down, the warp thread unit 105 will move downward. After welding is completed, it can be reset under the action of the warp thread unit tensioning mechanism to ensure the quality of the grid formed by welding.

[0051] In actual use, the weft thread unit 106 extends 1-2 mm beyond the base 109 to ensure welding after contacting the warp thread unit 105.

[0052] Among them, the ultrasonic welding component 111 includes a mounting plate 126 and a plurality of ultrasonic heads 127 arranged below the mounting plate 126. The ultrasonic heads 127 correspond to the weft thread grooves 113 arranged on the base 109. The telescopic rod 110 is fixedly connected to the mounting plate 126, and the cutting component 112 is installed on the mounting plate 126.

[0053] Further, the cutting assembly 112 includes a cutter 128 and a second driving unit 129. A first tool-relief groove 130 is provided on the mounting plate 126, and a second tool-relief groove 131 is provided on the base 109. The cutter 128 is connected to the second driving unit 129 and extends into the second tool-relief groove 131 after passing through the first tool-relief groove 130.

[0054] The cutter 128 is driven to move by the second driving unit 129, thereby realizing the cutting of the weft unit 106.

[0055] Among them, the second driving unit 129 includes a mounting seat 132, a lead screw 133, a lead screw nut, a slider 134 and a motor 135. The mounting seat 132 is fixedly arranged on the mounting plate 126. The lead screw 133 is rotatably mounted on the mounting seat 132 and then connected to the motor 135. The slider 134 is slidably mounted in the first tool-relief groove 130. The cutter 128 is fixedly connected to the slider 134. The lead screw nut is fixedly arranged on the slider 134 and is matched with the lead screw.

[0056] The motor 135 drives the lead screw 133 to rotate, thereby causing the slider 134 to move on the lead screw 133. The cutter 128 can be moved by the forward and reverse rotation of the lead screw 133, realizing the cutting of the weft unit 106.

[0057] Further, the ultrasonic welding assembly 111 further includes a top plate 136. A guide hole is provided on the top plate 136, and a guide post 138 is provided on the mounting plate 126. The guide post 138 is connected with an adjusting nut 139 after passing through the guide hole; a support spring 140 is arranged between the top plate 136 and the mounting plate 126, and the support spring 140 is sleeved on the guide post 138.

[0058] This can achieve the purpose of buffering. At the same time, after the bottom plate moves, the spring can be compressed. Under the action of the spring, the mounting plate 126 acts on the warp unit 105 and the weft unit 106, avoiding damage caused by the too-fast movement of the pressing head and playing a protective role.

[0059] Among them, a linear bearing is arranged in the guide hole. In actual use, a bushing can also be used.

[0060] This embodiment also discloses a method for producing a PET geogrid, including producing a PET geogrid using the above-mentioned PET geogrid production device.

[0061] Further, in a preferred case, the guiding assembly 118 includes a mounting frame 141 installed on the base 109, a support roller 142 rotatably installed on the mounting frame 141, and a plurality of vertical rollers 137 rotatably installed on the mounting frame 141. A channel is formed between adjacent vertical rollers 137;

[0062] After the warp thread unit 105 passes through the channel, the bottom surface of the guiding assembly 118 contacts the supporting roller 142, and the side surface contacts the vertical roller 137, which can guide the warp thread unit 105 to achieve the positioning of the warp thread unit 106 and reduce the wear of the warp thread unit 105 at the same time.

[0063] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0064] The foregoing is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A PET geogrid production device, comprising a first feeding component, a second feeding component, a material receiving component and a welding component, characterized in that: The first feeding assembly and the second feeding assembly are respectively located on the sides of the welding assembly, the first feeding assembly is used to realize the feeding of the PET grid warp unit, and the second feeding assembly is used to realize the feeding of the PET grid weft unit, and the warp unit and the weft unit are perpendicular to each other; The first feeding assembly and the second feeding assembly feed the warp unit and the weft unit to the welding assembly for welding the warp unit and the weft unit to form a grid, and the receiving assembly is used to roll up the welded grid; Wherein, the warp unit and the weft unit are provided with anti-tension ropes inside, and the warp unit and the weft unit are formed by injection molding by an injection molding machine; The specific production steps are as follows: Step 1: preparing a warp unit and a weft unit by an injection molding machine, and winding the warp unit and the weft unit by a drum to form a warp coil and a weft coil; Step 2: according to the number of warps and wefts of the required grid, the number of warp coils and weft coils is set, and the warp coils are rotated and installed on the first feeding assembly in sequence, and the weft coils are installed on the second feeding assembly in sequence; Step 3: The material receiving component fixes the warp and winds it. After the weft unit in the weft coil is extended into the welding component, the welding component cuts the weft unit and then welds the warp unit and the weft unit together.

2. The PET geogrid production device according to claim 1, characterized in that: The welding assembly includes a frame, a base installed on the frame, an ultrasonic welding assembly installed on the frame through a telescopic rod and located above the base, and a cutting assembly installed on the ultrasonic welding assembly. A plurality of weft grooves are arranged on the base, and the shape of the weft grooves matches the cross-section of the weft unit; the interior of the base is hollow, and a first give-way groove and a second give-way groove connected to the weft groove are arranged on the base, and the first give-way groove and the second give-way groove correspond to the positions of the reinforcing ribs on the warp unit; a first driving unit is arranged in the base, and after the first driving unit extends out of the first give-way groove and the second give-way groove, it contacts with the reinforcing ribs on the warp unit and drives the warp unit to move in the weft groove; a guide assembly is arranged on the side of the base close to the first feeding assembly, and the guide assembly is used to guide the warp unit.

3. The production device of a PET geogrid according to claim 2, characterized in that: A support plate is provided inside the base, and the first driving unit includes a first rotating shaft, a second rotating shaft, a first rotating wheel, a second rotating wheel and a driving motor. The first rotating shaft and the second rotating shaft are installed on the supporting plate, and the first rotating wheel and the second rotating wheel are fixedly installed on the first rotating shaft and the second rotating shaft respectively, and the first rotating wheel and the second rotating wheel are provided with latching teeth on the sides. After the driving motor is installed on the supporting plate, it is connected to the first rotating shaft, and the first rotating shaft and the second rotating shaft are connected by a transmission mechanism. The first rotating wheel and the second rotating wheel respectively extend out of the first making way groove and the second making way groove, and then contact with the reinforcing ribs on the weft unit to drive the weft unit.

4. A PET geogrid production device according to claim 2, characterized in that: The ultrasonic welding assembly comprises a mounting plate, and a plurality of ultrasonic pressure heads arranged below the mounting plate, the ultrasonic pressure heads correspond to the weft grooves arranged on the base, the telescopic rod is fixedly connected to the mounting plate, and the cutting assembly is mounted on the mounting plate.

5. The production device of a PET geogrid according to claim 4, characterized in that: The cutting assembly includes a cutting tool and a second driving unit. A first tool-relieving groove is provided on the mounting plate, and a second tool-relieving groove is provided on the base. The cutting tool is connected to the second driving unit and extends into the second tool-relieving groove after passing through the first tool-relieving groove.

6. The production device of a PET geogrid according to claim 5, characterized in that: The second driving unit includes a mounting seat, a lead screw, a lead screw nut, a slider and a motor. The mounting seat is fixedly arranged on the mounting plate. The lead screw is rotatably installed on the mounting seat and then connected to the motor. The slider is slidably installed in the first tool-relieving groove. The cutting tool is fixedly connected to the slider. The lead screw nut is fixedly arranged on the slider and is matched with the lead screw.

7. A production method of a PET geogrid, characterized in that: It includes producing a PET geogrid by using the PET geogrid production device according to any one of claims 1-6.

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