Full-automatic wiredrawing equipment for frame strip-shaped piece and wiredrawing grinding process of full-automatic wiredrawing equipment

Abstract

The invention discloses full-automatic wiredrawing equipment for frame strip-shaped parts and a wiredrawing grinding process thereof.A platform support is arranged at the position of the middle height of a rack, a switching guide rail extending in the front-back direction is arranged at the top of the platform support, and a switching movable support is assembled on the switching guide rail in a sliding mode; the switching movable bracket is in transmission connection with a switching driving device; a swing guide rail extending in the front-back direction is arranged at the top of the switching movable support, and the wire drawing platform is slidably assembled on the swing guide rail and is in transmission connection with a swing driving device. A strip-shaped piece tool device is fixed to the table top of the wire drawing platform. And with the switching movable support as a motion reference, the wire drawing platform and the strip-shaped piece tool device are in synchronous reciprocating swing fit in the front-back direction. Compared with the prior art, composite texture wire drawing grinding treatment can be conducted on the frame strip-shaped piece, and the production efficiency and the wire drawing grinding quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of wire drawing equipment, and in particular to a fully automatic wire drawing equipment for a frame strip and a wire drawing grinding process thereof. Background Art

[0002] The wire drawing and grinding process is often used for the surface processing of hardware, which can form a filamentary grinding surface on its surface, thereby improving the smoothness and aesthetics of the hardware and its products. When enterprises perform wire drawing treatment on the surface of strip-shaped parts, there are two common processing methods, namely manual wire drawing and grinding and wire drawing and grinding treatment of the strip-shaped parts by a triangular wire drawing machine. In the prior art, the triangular wire drawing machine includes a grinding platform, a pressing component, and a triangularly wound and movable abrasive belt. The strip-shaped part is fixed to the grinding platform by a customized fixture, and then the bottom edge section of the abrasive belt is pressed downward by the pressing component so that its frosted surface is close to the target grinding surface of the strip-shaped part. The target grinding surface of the strip-shaped part is ground by the frosted surface of the moving abrasive belt, and the movable pressing component moves horizontally along the length of the strip-shaped part to complete the comprehensive wire drawing and grinding treatment of the target grinding surface of the strip-shaped part.

[0003] Strip-shaped pieces are special wire drawing and grinding objects with the particularity of narrow and long processing surfaces. Existing triangular wire drawing machines have many defects when performing wire drawing and grinding on strip-shaped pieces: 1. Each wire drawing and grinding cycle can only perform wire drawing and grinding on one or two strip-shaped pieces at the same time, resulting in low processing efficiency; 2. When performing wire drawing and grinding on strip-shaped pieces, since the width of the frosted surface of the sanding belt is greater than the width of the processing surface of the strip-shaped pieces, flanging of the sanding belt is prone to occur during operation, and the frosted surface of the sanding belt cannot be used more effectively, resulting in waste; 3. Only slender wire drawing texture processing can be performed, and short and broken texture surface grinding processing cannot be performed on strip-shaped pieces, resulting in single functionality. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a fully automatic wire drawing equipment and wire drawing and grinding process for frame strips, so as to solve the above problems and improve the quality and efficiency of the wire drawing and grinding processing of the strips.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a fully automatic wire drawing equipment for frame strip parts, including a frame, a wire drawing platform, a triangular sanding belt assembly and a pressing assembly, the wire drawing platform is arranged on the frame, the triangular sanding belt assembly is arranged above the wire drawing platform, the triangular sanding belt assembly has a moving sanding belt that is wound in a triangular shape, the pressing assembly is movably installed on the frame in a horizontal direction, and is movably pressed against the back of the sanding belt, the pressing assembly is provided with an ultrasonic transducer for improving the wire drawing efficiency and forming wire drawing textures of different styles; a platform bracket is provided at the middle height position of the frame, a switching guide rail extending in the front-rear direction is provided on the top of the platform bracket, the switching guide rail is slidably equipped with a switching movable bracket, and the switching movable bracket is transmission-connected with a switching drive Device; a swing guide rail extending along the front-to-back direction is provided on the top of the switching movable bracket, the wire drawing platform is slidably assembled on the swing guide rail, and the wire drawing platform is transmission-connected with a swing driving device; a strip-shaped piece tooling device is fixed on the table top of the wire drawing platform, the strip-shaped piece tooling device includes a tooling base plate and two tooling side blocks, the two tooling side blocks are respectively installed on both sides of the tooling base plate, and a plurality of positioning units for positioning the frame workpiece are provided between the two tooling side blocks, each positioning unit is respectively arranged in parallel along the front-to-back direction of the tooling base plate, and the processing surfaces of the frame workpiece in each tooling state are respectively in the same plane and are not higher than the upper surface of the tooling side block; with the switching movable bracket as a movement reference, the wire drawing platform and the strip-shaped piece tooling device make synchronous reciprocating swing cooperation in the front-to-back direction.

[0006] In a further technical solution, the swing drive device includes a swing drive motor, a swing drive eccentric wheel assembly and a swing drive rod. The swing drive motor is fixedly mounted on the switching movable bracket; the swing drive eccentric wheel assembly is installed on the output shaft of the swing drive motor; one end of the swing drive rod is pivotally connected to the swing drive eccentric wheel assembly, and the other end is pivotally connected to the wire drawing platform.

[0007] In a further technical solution, the swing-driven eccentric wheel assembly includes a rotating disk and an eccentric wheel rod. The rotating disk is assembled on the output shaft of the swing-driven motor. A rotating driving groove is provided on the outer side of the rotating disk. The eccentric wheel rod is movably embedded in the rotating driving groove. The eccentric wheel rod is provided with a U-shaped groove for adjusting the swing amplitude. A bolt unit is movably inserted in the U-shaped groove. The eccentric wheel rod is fastened and assembled in the rotating driving groove by the bolt unit. A protruding pivot portion is formed on the outer end portion of the eccentric wheel rod. The pivot portion is pivotally connected to the end portion of the swing-driven rod.

[0008] In a further technical solution, the frame is provided with a lifting bracket, which is higher than the wire drawing platform, wherein the lifting bracket is slidably installed with a transverse platform, and the pressing assembly is fixedly installed on the transverse platform; the transverse platform is fixed with a transverse drive motor, and the output shaft of the transverse drive motor is equipped with a transverse drive gear; a transverse drive rack is fixed on one side of the lifting bracket, and the transverse drive rack is meshed with the transverse drive gear; the triangular sanding belt assembly includes a sanding belt drive motor, a tensioning roller and two sanding belt rollers, and the two sanding belt rollers are respectively rotatably installed on both sides of the lifting bracket; the tensioning roller is arranged above the lifting bracket; the sanding belt drive motor is fixed on one side of the lifting bracket and is transmission-connected to any one of the sanding belt rollers.

[0009] In a further technical solution, the downward pressure assembly includes a back plate, a platform plate, a downward pressure drive cylinder, a downward pressure base plate, a pressure plate and an ultrasonic transducer, the back plate is fixed to the transverse movement platform; the platform plate and the downward pressure drive cylinder are respectively fixedly installed on the outer side of the back plate; sliding guide rod assemblies are respectively provided on both sides of the platform plate, including a linear bearing seat and a guide rod body, the linear bearing seat is fixed to the platform plate, and the guide rod body is slidably assembled on the linear bearing seat along the vertical direction; the two sides of the downward pressure base plate are respectively connected to the bottom end of the corresponding guide rod body, and are connected to the piston rod of the downward pressure drive cylinder; the pressure plate is fixedly installed on the bottom surface of the downward pressure base plate; the ultrasonic transducer is fixedly assembled on the downward pressure base plate or the pressure plate.

[0010] In a further technical solution, a pressure fitting surface is provided on the bottom surface of the pressure plate, and rounded edges are formed on the left and right sides of the pressure fitting surface respectively. Pressure plates of different specifications have pressure fitting surfaces of different widths and rounded edges of different radii to meet the operating requirements of different processing speeds; undercut connectors are provided on both sides of the top surface of the pressure plate respectively, and the undercut connectors on both sides are respectively buckled to the lower pressure bottom plate and fastened with bolts to realize the rapid replacement of pressure plates of different specifications.

[0011] In a further technical solution, a transmission plate is provided in the middle position of the top surface of the pressing bottom plate, and a plurality of linkage guide rods are connected between the transmission plate and the pressing bottom plate. The linkage guide rods are fixedly connected to the pressing bottom plate in the vertical direction, and a limit flap is provided on the top of the linkage guide rod; the transmission plate is slidably sleeved on each linkage guide rod, and its top surface is limitedly matched with the limit flap; the piston rod of the pressing drive cylinder is provided with an intermediate connecting piece for extension, and the bottom end of the intermediate connecting piece is fixedly connected to the transmission plate, and a hinge seat is respectively provided on both sides of the top surface of the pressing bottom plate, and a connecting head is installed on the hinge seat through a rotating shaft, and the end of the connecting head is connected to the corresponding guide rod body; two ultrasonic transducers are arranged, and the two ultrasonic transducers are respectively fixed on both sides of the top surface of the pressing bottom plate; a weight block is also provided on the top surface of the pressing bottom plate.

[0012] In a further technical solution, the raising bracket is also provided with a sanding belt tensioning mechanism, which includes an intermediate bracket, a tensioning bracket and a tensioning spring. The intermediate bracket is fixed at the middle position of the top of the raising bracket, and a rotating shaft seat is provided at the top of the intermediate bracket; the tensioning bracket has a first support rod, a rotating shaft rod and a second support rod, the first support rod and the second support rod are respectively fixedly connected to both sides of the rotating shaft rod and form an angle greater than 90 degrees, and the tensioning bracket is rotatably installed on the rotating shaft seat of the intermediate bracket through the rotating shaft rod; the tensioning roller is assembled at the end of the first support rod; one end of the tensioning spring is connected to the end of the second support rod, and the other end is connected to the raising bracket.

[0013] In a further technical solution, a plurality of positioning pillows are provided between the two tooling side blocks, and the positioning pillows are spaced apart along the length direction of the tooling base plate; each positioning pillow is provided with a plurality of spaced apart positioning slots along its length direction, and the positioning slots of each positioning pillow are aligned one by one along the length direction of the tooling base plate to form a positioning unit; the two ends of the frame workpiece are respectively matched with the inner limiters of the corresponding tooling side blocks, and different tooling base plates are provided with positioning slots of different specifications to be suitable for wire drawing and grinding tooling of frame workpieces of different specifications.

[0014] A wire drawing and grinding process for a frame strip, comprising the following steps:

[0015] Step 1: Select a strip-shaped piece fixture device that matches the target frame workpiece and fix it on the wire drawing platform of the fully automatic wire drawing equipment. The strip-shaped piece fixture device is provided with more than two positioning units arranged side by side;

[0016] Step 2: Position multiple frame workpieces in corresponding positioning units respectively, with the processing surfaces of each frame workpiece being horizontally aligned, and the interval between two adjacent frame workpieces being no greater than 2 mm;

[0017] Step 3: Start the fully automatic wire drawing equipment, and the abrasive belt is continuously running at a first wire drawing speed of 10m / s-20m / s; the pressing component flexibly presses the abrasive belt so that the frosted surface of the abrasive belt is in close contact with the processing surface of the frame workpiece, and at the same time, the ultrasonic transducer is started and is in an enabled state of 28KHZ-100KHZ; the pressing component moves a stroke along the length direction of the frame workpiece, and the moving direction of the pressing component is opposite to the running direction of the abrasive belt, and the moving speed of the pressing component is 1m / s-2m / s, so as to complete a wire drawing process of each frame workpiece;

[0018] Step 4: The pressing component is separated from the pressing belt, the ultrasonic transducer of the pressing component is stopped, and the pressing component is reset to the initial position;

[0019] Step 5: The abrasive belt is continuously operated at a second wire drawing speed of 5m / s-10m / s; the pressing component flexibly presses the abrasive belt so that the frosted surface of the abrasive belt is closely attached to the processing surface of the frame workpiece; the pressing component performs a downward pressing stroke, and its travel speed is 0.5m / s-1m / s. At the same time, the swing drive device drives the strip tooling device and all the frame workpieces to swing back and forth in the front and rear directions, and the swing speed of the frame workpiece is 0.5m / s-1m / s, so as to complete the secondary wire drawing process of each frame workpiece;

[0020] Step 6: The pressing assembly is separated from the pressing abrasive belt, the fully automatic wire drawing equipment is stopped, and each frame workpiece is taken out to complete the composite wire drawing grinding of the frame workpiece.

[0021] After adopting the above structure, the advantages of the present invention compared with the prior art are as follows: the present invention provides a fully automatic wire drawing equipment for border strips, which drives the border strips arranged side by side to be drawn and ground into straight lines, short and broken lines, and straight and short and broken composite lines through a wire drawing platform with a swinging structure, thereby improving the selection of wire drawing styles and the aesthetics of the products; the ultrasonic transducer is used to ultrasonically enable the pressing component, which can improve the wire drawing efficiency of the equipment, and the enabling frequency of the ultrasonic transducer can be adjusted to achieve subtle changes in the depth of different textures, thereby further improving the diversity of wire drawing styles; the strip tooling device is provided with a plurality of positioning units, and the parallel wire drawing tooling of a plurality of border strips can increase the number of border strips processed by the equipment within the same processing cycle, thereby improving the processing efficiency of the equipment, and the strip tooling device Tooling side blocks higher than the frame strips are provided on both sides, which can prevent the sanding belt from scratching the sharp cut edges at the ends of the frame strips and causing damage to both, thereby further improving the operating stability of the equipment; the wire drawing platform is reciprocated in the front and rear directions by a swing-driven eccentric wheel assembly that can adjust the eccentric distance, so as to realize the wire drawing and grinding of the short and broken lines of the frame strips, and the swing amplitude of the wire drawing platform is adjusted by the eccentric distance of the pivotal part of the eccentric wheel rod, so as to meet the wire drawing and grinding of frame strips of different sizes; the present invention provides a wire drawing and grinding process for frame strips, which increases the number of wire drawing and grinding processes of frame strips in one production cycle, improves production efficiency, and performs wire drawing and grinding on the frame strips twice in the same production cycle, so that a composite line consisting of straight lines and short and broken lines is formed on its surface, further improving the aesthetics of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2It is a structural schematic diagram of another viewing angle of the present invention.

[0025] Figure 3 It is a structural schematic diagram of the wire drawing platform in the present invention.

[0026] Figure 4 yes Figure 3 Magnified view of point A in .

[0027] Figure 5 It is a structural schematic diagram of the pressing component in the present invention.

[0028] Figure 6 It is a structural schematic diagram of the abrasive belt tensioning mechanism in the present invention.

[0029] Figure 7 It is a structural schematic diagram of the strip piece tooling device in the present invention. DETAILED DESCRIPTION

[0030] The following are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

[0031] like Figures 1 to 7 A fully automatic wire drawing equipment for frame strips, comprising a frame 1, a wire drawing platform 22, a triangular abrasive belt assembly and a pressing assembly 6, wherein the wire drawing platform 22 is arranged on the frame 1, the triangular abrasive belt assembly is arranged above the wire drawing platform 22, the triangular abrasive belt assembly has a triangularly wound and movable abrasive belt 4, the pressing assembly 6 is movably mounted on the frame 1 in a horizontal direction, and movably presses against the back of the abrasive belt 4, the pressing assembly 6 is provided with an ultrasonic transducer 69 for improving the wire drawing efficiency and forming wire drawing textures of different styles; a platform bracket 2 is provided at a middle height position of the frame 1, a switching guide rail 211 extending in a front-rear direction is provided on the top of the platform bracket 2, the switching guide rail 211 is slidably equipped with a switching movable bracket 21, and the switching movable bracket 21 is transmission-connected with a switching drive device; the switching movable bracket 21 A swing guide rail 221 extending along the front-to-back direction is provided on the top of the wire drawing platform 22, and the wire drawing platform 22 is slidably assembled on the swing guide rail 221, and the wire drawing platform 22 is transmission-connected with a swing driving device; a strip-shaped piece tooling device is fixed on the table top of the wire drawing platform 22, and the strip-shaped piece tooling device includes a tooling base plate 3 and two tooling side blocks 32, and the two tooling side blocks 32 are respectively installed on both sides of the tooling base plate 3, and a plurality of positioning units for positioning the frame workpiece 9 are provided between the two tooling side blocks 32, and each positioning unit is respectively arranged in parallel along the front-to-back direction of the tooling base plate 3, and the processing surfaces of the frame workpiece 9 in each tooling state are respectively in the same plane and are not higher than the upper surface of the tooling side block 32; with the switching movable bracket 21 as a movement reference, the wire drawing platform 22 and the strip-shaped piece tooling device make synchronous reciprocating swing cooperation in the front-to-back direction.

[0032] The wire drawing platform 22 with a swing structure drives the frame workpieces 9 arranged side by side to be wire drawn and ground with straight lines, short and broken lines, and composite lines of straight and short broken lines, thereby improving the style selection and aesthetics of the wire drawing of the product. The wire drawing platform 22 in the present invention can perform a wire drawing process of long lines and short lines on the frame workpiece 9, which can be achieved by adjusting the running speed of the abrasive belt 4, and can also perform a single grinding of short and broken lines. Users can customize single texture grinding or composite texture grinding of different textures according to actual production needs.

[0033] In this embodiment, a lifting drive mechanism is provided between the platform bracket 2 and the frame 1, including four flange-type screw lift seats 23, the flange-type screw lift seats 23 have a support rod that can move up and down, and each support rod is fixed to the platform bracket 2; the input shaft of the flange-type screw lift seat 23 is provided with a passive pulley; a lifting transmission shaft 24 is rotatably installed at the bottom of the frame, and a driving pulley is provided on both sides of the lifting transmission shaft 24, and the two passive pulleys and the driving pulley on the same side respectively constitute a driving sprocket group and are connected by a chain; a hand turntable 25 is provided at one end of the lifting transmission shaft 24 for manually driving the forward and reverse rotation of each flange-type screw lift seat 23, thereby realizing the adjustment of the working height of the platform bracket 2 and the strip-shaped piece tooling device.

[0034] By ultrasonically enabling the pressing component 6 through the ultrasonic transducer 69, the wire drawing efficiency of the equipment can be improved. Moreover, by adjusting the enabling frequency of the ultrasonic transducer 69, subtle changes in the depth of different textures can be achieved, further improving the diversity of wire drawing styles.

[0035] The strip-shaped piece tooling device is provided with a plurality of positioning units, which can perform wire drawing tooling on a plurality of frame workpieces 9 in parallel, thereby increasing the number of frame workpieces 9 processed by the equipment within the same processing cycle and improving the processing efficiency of the equipment. Tooling side blocks higher than the frame workpieces 9 are provided on both sides of the strip-shaped piece tooling device, which can prevent the sanding belt from scratching the sharp cutting edge at the end of the frame strip and causing damage to both, thereby further improving the operating stability of the equipment.

[0036] Specifically, the swing drive device includes a swing drive motor 71, a swing drive eccentric wheel assembly and a swing drive rod 75. The swing drive motor 71 is fixedly assembled on the switching movable bracket 21; the swing drive eccentric wheel assembly is installed on the output shaft of the swing drive motor 71; one end of the swing drive rod 75 is pivotally connected to the swing drive eccentric wheel assembly, and the other end is pivotally connected to the wire drawing platform 22.

[0037] Specifically, the swing-driven eccentric wheel assembly includes a rotating disk 72 and an eccentric wheel rod 73. The rotating disk 72 is assembled on the output shaft of the swing-driven motor 71. A rotating driving groove is provided on the outer side of the rotating disk 72. The eccentric wheel rod 73 is movably embedded in the rotating driving groove. The eccentric wheel rod 73 is provided with a U-shaped groove 74 for adjusting the swing amplitude. The U-shaped groove 74 is movably inserted with a bolt unit. The eccentric wheel rod 73 is fastened and assembled in the rotating driving groove by the bolt unit. The outer end portion of the eccentric wheel rod 73 is formed with a protruding pivot portion, and the pivot portion is pivotally connected to the end of the swing-driven rod 75.

[0038] The wire drawing platform 22 is reciprocated in the front-rear direction by a swing-driven eccentric wheel assembly with adjustable eccentric distance, so as to realize the wire drawing and grinding of short and broken lines of the frame workpiece 9. The swing amplitude of the wire drawing platform 22 is adjusted by the eccentric distance of the pivotal part of the eccentric wheel rod 73, so as to meet the wire drawing and grinding requirements of frame workpieces 9 of different sizes.

[0039] Specifically, the frame 1 is provided with a lifting bracket 11, and the lifting bracket 11 is higher than the wire drawing platform 22, wherein the lifting bracket 11 is slidably installed with a transverse platform 60, and the pressing assembly 6 is fixedly installed on the transverse platform 60; the transverse platform 60 is fixed with a transverse drive motor 601, and the output shaft of the transverse drive motor 601 is equipped with a transverse drive gear; a transverse drive rack 602 is fixed on one side of the lifting bracket 11, and the transverse drive rack 602 is meshed with the transverse drive gear; the triangular sanding belt assembly includes a sanding belt drive motor 43, a tensioning roller 42 and two sanding belt rollers 41, and the two sanding belt rollers 41 are respectively rotatably installed on both sides of the lifting bracket 11; the tensioning roller 42 is arranged above the lifting bracket; the sanding belt drive motor 43 is fixed on one side of the lifting bracket 11, and is transmission-connected to any one of the sanding belt rollers 41.

[0040] Specifically, the pressing assembly 6 includes a back plate 61, a platform plate 62, a pressing drive cylinder 66, a pressing bottom plate 65, a pressure plate 68 and an ultrasonic transducer 69. The back plate 61 is fixed to the transverse platform 60; the platform plate 62 and the pressing drive cylinder 66 are respectively fixedly installed on the outer side surface of the back plate 61; both sides of the platform plate 62 are respectively provided with sliding guide rod assemblies, including a linear bearing seat 63 and a guide rod body 64, the linear bearing seat 63 is fixed to the platform plate 62, and the guide rod body 64 is slidably assembled on the linear bearing seat 63 along the vertical direction; the two sides of the pressing bottom plate 65 are respectively connected to the bottom end of the corresponding guide rod body 64, and are connected to the piston rod of the pressing drive cylinder 66; the pressure plate 68 is fixedly installed on the bottom surface of the pressing bottom plate 65; the ultrasonic transducer 69 is fixedly assembled on the pressing bottom plate 65 or the pressure plate 68.

[0041] Specifically, a pressing fitting surface is provided on the bottom surface of the pressure plate 68, and rounded edges are formed on the left and right sides of the pressing fitting surface respectively. Pressure plates 68 of different specifications have pressing fitting surfaces of different widths and rounded edges of different radii to meet the operating requirements of different processing speeds; reverse buckle connectors 681 are provided on both sides of the top surface of the pressure plate 68 respectively, and the reverse buckle connectors 681 on both sides are respectively buckled to the lower pressure bottom plate 65 and are fastened by bolts to realize the rapid replacement of pressure plates 68 of different specifications.

[0042] Specifically, a transmission plate 663 is provided at the middle position of the top surface of the pressing bottom plate 65, and a plurality of linkage guide rods are connected between the transmission plate 663 and the pressing bottom plate 65. The linkage guide rods are fixedly connected to the pressing bottom plate 65 in the vertical direction, and the top of the linkage guide rods is provided with a limit eaves set outward; the transmission plate 663 is slidably sleeved on each linkage guide rod, and its top surface is limitedly matched with the limit eaves; the piston rod of the pressing drive cylinder 66 is provided with an intermediate connecting piece 662 used for extension, and the bottom end of the intermediate connecting piece 662 is fixed to the transmission plate 663. A hinge seat 642 is provided at both sides of the top surface of the pressing bottom plate 65, and a connector 641 is installed on the hinge seat 642 through a rotating shaft, and the end of the connector 641 is connected to the corresponding guide rod body 64; the number of ultrasonic transducers 69 is two, and the two ultrasonic transducers 69 are respectively fixed on both sides of the top surface of the pressing bottom plate 65; and a weight block is also provided on the top surface of the pressing bottom plate 65.

[0043] Specifically, the raising bracket 11 is also provided with a sanding belt tensioning mechanism 5, which includes an intermediate bracket 54, a tensioning bracket and a tensioning spring 53. The intermediate bracket 54 is fixed at the middle position of the top of the raising bracket 11, and a rotating shaft seat is provided at the top of the intermediate bracket 54; the tensioning bracket has a first support rod 51, a rotating shaft rod 521 and a second support rod 52, the first support rod 51 and the second support rod 52 are respectively fixedly connected to the two sides of the rotating shaft rod 521, and form an angle greater than 90 degrees, and the tensioning bracket is rotatably installed on the rotating shaft seat of the intermediate bracket 54 through the rotating shaft rod 521; the tensioning roller 42 is assembled at the end of the first support rod 51; one end of the tensioning spring 53 is connected to the end of the second support rod 52, and the other end is connected to the raising bracket 11.

[0044] Specifically, there are two first support rods 51, which are arranged in parallel and fixed to the rotating shaft rod 521; a supporting shaft rod 421 is passed through the outer ends of the two first support rods 51, and the supporting shaft rod 421 extends outward, and the tensioning roller 42 is rotatably installed on the extended part of the supporting shaft rod 421.

[0045] Specifically, a plurality of positioning pillows 31 are provided between the two tooling side blocks 32, and each positioning pillow 31 is spaced apart along the length direction of the tooling base plate 3; each positioning pillow 31 is provided with a plurality of spaced apart positioning slots 310 along its length direction, and each positioning slot 310 of each positioning pillow 31 is aligned one by one along the length direction of the tooling base plate 3 to form a positioning unit; the two ends of the frame workpiece 9 are respectively matched with the inner limit of the corresponding tooling side blocks 32, and different tooling base plates 3 are provided with positioning slots 310 of different specifications to be suitable for wire drawing and grinding tools of frame workpieces 9 of different specifications.

[0046] The fully automatic wire drawing equipment can realize a composite wire drawing and grinding process of a frame strip, and the process includes the following steps:

[0047] Step 1: Select a strip-shaped piece fixture device that matches the target frame workpiece 9 and fix it on the wire drawing platform 22 of the fully automatic wire drawing equipment. The strip-shaped piece fixture device is provided with more than two positioning units arranged side by side;

[0048] Step 2: Position multiple frame workpieces 9 in corresponding positioning units respectively, with the processing surfaces of each frame workpiece 9 being horizontally aligned, and the interval between two adjacent frame workpieces 9 being no greater than 2 mm;

[0049] Step 3: Start the fully automatic wire drawing equipment, and the abrasive belt 4 is continuously operated at a first wire drawing speed of 10m / s-20m / s; the pressing component 6 movably presses the abrasive belt 4 so that the frosted surface of the abrasive belt 4 is in close contact with the processing surface of the frame workpiece 9, and at the same time, the ultrasonic transducer 69 is started and is in an enabled state of 28KHZ-100KHZ; the pressing component 6 moves a stroke along the length direction of the frame workpiece 9, and the moving direction of the pressing component 6 is opposite to the running direction of the abrasive belt 4, and the moving speed of the pressing component 6 is 1m / s-3m / s, so as to complete a wire drawing process of each frame workpiece 9;

[0050] Step 4: the pressing assembly 6 is separated from the pressing belt 4, the ultrasonic transducer 69 of the pressing assembly 6 is stopped from being enabled, and the pressing assembly 6 is reset to the initial position;

[0051] Step 5: The abrasive belt 4 is continuously operated at a second wire drawing speed of 5m / s-10m / s; the pressing assembly 6 movably presses the abrasive belt 4 so that the frosted surface of the abrasive belt 4 is closely attached to the processing surface of the frame workpiece 9; the pressing assembly 6 performs a downward pressing stroke, and its travel speed is 0.5m / s-1m / s. At the same time, the swing drive device drives the strip tooling device and all the frame workpieces 9 to swing back and forth in the front and rear directions, and the swing speed of the frame workpiece 9 is 0.8m / s-1.5m / s, so as to complete the secondary wire drawing process of each frame workpiece 9;

[0052] Step 6: The pressing assembly 6 is separated from the pressing abrasive belt 4 , the fully automatic wire drawing equipment is stopped, and each frame workpiece 9 is taken out to complete the composite wire drawing grinding of the frame workpiece 9 .

[0053] The present invention provides a wire drawing and grinding process for a border strip, which increases the number of wire drawing and grinding processes of the border strip in one production cycle, improves production efficiency, and performs wire drawing and grinding on the border strip twice in the same production cycle. The surface of the border workpiece 9 after the secondary wire drawing process can form a composite texture composed of straight lines and short and broken lines, further improving the aesthetics of the product.

[0054] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A fully automatic wire drawing device for a frame strip, comprising a frame (1), a wire drawing platform (22), a triangular abrasive belt assembly and a pressing assembly (6), wherein the wire drawing platform (22) is arranged on the frame (1), the triangular abrasive belt assembly is arranged above the wire drawing platform (22), the triangular abrasive belt assembly has a triangularly wound and movable abrasive belt (4), and the pressing assembly (6) is movably mounted on the frame (1) in a horizontal direction and movably pressed against the back of the abrasive belt (4), characterized in that: The pressing component (6) is provided with an ultrasonic transducer (69) for improving the wire drawing efficiency and forming wire drawing textures of different styles; A platform bracket (2) is provided at a middle height position of the frame (1); a switching guide rail (211) extending in the front-rear direction is provided on the top of the platform bracket (2); a switching movable bracket (21) is slidably mounted on the switching guide rail (211); and the switching movable bracket (21) is drivingly connected to a switching drive device; A swing guide rail (221) extending in the front-rear direction is provided on the top of the switching movable bracket (21); the wire drawing platform (22) is slidably mounted on the swing guide rail (221); and the wire drawing platform (22) is transmission-connected to a swing driving device; A strip-shaped tooling device is fixed on the tabletop of the wire drawing platform (22), and the strip-shaped tooling device includes a tooling base plate (3) and two tooling side blocks (32). The two tooling side blocks (32) are respectively installed on both sides of the tooling base plate (3). A plurality of positioning units for positioning the frame workpiece (9) are arranged between the two tooling side blocks (32). Each positioning unit is arranged in parallel along the front-rear direction of the tooling base plate (3). The processing surfaces of the frame workpiece (9) in each tooling state are respectively in the same plane and are not higher than the upper surface of the tooling side block (32). With the switching movable bracket (21) as a movement reference, the wire drawing platform (22) and the strip-shaped piece tooling device perform synchronous reciprocating swinging in the front-rear direction.

2. The fully automatic wire drawing equipment for frame strips according to claim 1, characterized in that: The swing drive device comprises a swing drive motor (71), a swing drive eccentric wheel assembly and a swing drive rod (75); the swing drive motor (71) is fixedly mounted on the switching movable bracket (21); the swing drive eccentric wheel assembly is installed on the output shaft of the swing drive motor (71); one end of the swing drive rod (75) is pivotally connected to the swing drive eccentric wheel assembly, and the other end is pivotally connected to the wire drawing platform (22).

3. The fully automatic wire drawing equipment for frame strips according to claim 2, characterized in that: The swing drive eccentric wheel assembly comprises a rotating disk (72) and an eccentric wheel rod (73), wherein the rotating disk (72) is mounted on the output shaft of the swing drive motor (71), and a rotating drive groove is provided on the outer side surface of the rotating disk (72); the eccentric wheel rod (73) is movably engaged in the rotating drive groove, and the eccentric wheel rod (73) is provided with a U-shaped groove (74) for adjusting the swing amplitude, and a bolt unit is movably inserted in the U-shaped groove (74), and the eccentric wheel rod (73) is fastened and assembled in the rotating drive groove by the bolt unit, and an outer end portion of the eccentric wheel rod (73) is formed with an outwardly protruding pivot portion, and the pivot portion is pivotally connected to the end portion of the swing drive rod (75).

4. The fully automatic wire drawing equipment for frame strips according to claim 1, characterized in that: The frame (1) is provided with a raising bracket (11), and the raising bracket (11) is higher than the wire drawing platform (22). Wherein, a transverse platform (60) is slidably mounted on the raising bracket (11), and the pressing assembly (6) is fixedly mounted on the transverse platform (60); a transverse driving motor (601) is fixedly mounted on the transverse platform (60), and an output shaft of the transverse driving motor (601) is equipped with a transverse driving gear; a transverse driving rack (602) is fixedly mounted on one side of the raising bracket (11), and the transverse driving rack (602) is meshedly connected with the transverse driving gear; The triangular sanding belt assembly comprises a sanding belt driving motor (43), a tensioning roller (42) and two sanding belt rollers (41), wherein the two sanding belt rollers (41) are rotatably mounted on both sides of a lifting bracket (11); the tensioning roller (42) is arranged above the lifting bracket; the sanding belt driving motor (43) is fixed to one side of the lifting bracket (11) and is transmission-connected to any one of the sanding belt rollers (41).

5. The fully automatic wire drawing equipment for frame strips according to claim 4, characterized in that: The pressing assembly (6) comprises a back plate (61), a platform plate (62), a pressing drive cylinder (66), a pressing bottom plate (65), a pressing plate (68) and the ultrasonic transducer (69). The back plate (61) is fixed to the transverse moving platform (60); the platform plate (62) and the downward pressure driving cylinder (66) are respectively fixedly installed on the outer side surface of the back plate (61); sliding guide rod assemblies are respectively provided on both sides of the platform plate (62), including a linear bearing seat (63) and a guide rod body (64), the linear bearing seat (63) is fixed to the platform plate (62), and the guide rod body (64) is slidably assembled on the linear bearing seat (63) along the vertical direction; the two sides of the downward pressure base plate (65) are respectively connected to the bottom end of the corresponding guide rod body (64), and are connected to the piston rod of the downward pressure driving cylinder (66); the pressure plate (68) is fixedly installed on the bottom surface of the downward pressure base plate (65); the ultrasonic transducer (69) is fixedly assembled on the downward pressure base plate (65) or the pressure plate (68).

6. The fully automatic wire drawing equipment for frame strips according to claim 5, characterized in that: The bottom surface of the pressing plate (68) is provided with a pressing fitting surface, and the left and right sides of the pressing fitting surface are respectively formed with rounded edges. Pressing plates (68) of different specifications have pressing fitting surfaces of different widths and rounded edges of different radii to meet the operating requirements of different processing speeds. The top surface of the pressure plate (68) is provided with undercut connectors (681) on both sides, and the undercut connectors (681) on both sides are respectively buckled to the lower pressure base plate (65) and fastened by bolts to realize the rapid replacement of pressure plates (68) of different specifications.

7. A fully automatic wire drawing device for frame strips according to claim 6, characterized in that: A transmission plate (663) is provided in the middle position of the top surface of the downward pressing bottom plate (65), and a plurality of linkage guide rods are connected between the transmission plate (663) and the downward pressing bottom plate (65), the linkage guide rods are fixedly connected to the downward pressing bottom plate (65) in the vertical direction, and the top of the linkage guide rods is provided with a limit eaves set outward; the transmission plate (663) is slidably sleeved on each linkage guide rod, and its top surface is limitedly matched with the limit eaves; the piston rod of the downward pressing driving cylinder (66) is provided with an intermediate connecting piece (662) used for extension, and the bottom end of the intermediate connecting piece (662) is fixedly connected to the transmission plate (663), A hinge seat (642) is provided at both sides of the top surface of the pressing bottom plate (65), and a connecting head (641) is installed on the hinge seat (642) through a rotating shaft, and the end of the connecting head (641) is connected to the corresponding guide rod body (64); the number of ultrasonic transducers (69) is two, and the two ultrasonic transducers (69) are respectively fixed on both sides of the top surface of the pressing bottom plate (65); a weight block is also provided on the top surface of the pressing bottom plate (65).

8. The fully automatic wire drawing equipment for frame strips according to claim 4, characterized in that: The raising bracket (11) is also provided with a sanding belt tensioning mechanism (5), the sanding belt tensioning mechanism (5) comprising an intermediate bracket (54), a tensioning bracket and a tensioning spring (53), the intermediate bracket (54) is fixed to the middle position of the top of the raising bracket (11), and a rotating shaft seat is provided at the top of the intermediate bracket (54); The tensioning bracket comprises a first support rod (51), a rotating shaft rod (521) and a second support rod (52); the first support rod (51) and the second support rod (52) are respectively fixedly connected to two sides of the rotating shaft rod (521) and form an angle greater than 90 degrees; the tensioning bracket is rotatably mounted on a rotating shaft seat of the intermediate bracket (54) through the rotating shaft rod (521); The tensioning roller (42) is mounted on the end of the first support rod (51); one end of the tensioning spring (53) is connected to the end of the second support rod (52), and the other end is connected to the lifting bracket (11).

9. The fully automatic wire drawing equipment for frame strips according to claim 1, characterized in that: A plurality of positioning pillows (31) are arranged between the two tooling side blocks (32), and the positioning pillows (31) are spaced apart along the length direction of the tooling base plate (3); each positioning pillow (31) is provided with a plurality of spaced apart positioning slots (310) along its length direction, and the positioning slots (310) of each positioning pillow (31) are aligned one by one along the length direction of the tooling base plate (3), thereby forming the positioning unit. Different tooling bottom plates (3) are provided with positioning slots (310) of different specifications, so as to be suitable for wire drawing and polishing tooling of frame workpieces (9) of different specifications.

10. A wire drawing and grinding process for a frame strip, using the fully automatic wire drawing equipment according to claim 1, characterized in that: The following steps are involved: Step 1: Select a strip-shaped piece fixture device that matches the target frame workpiece (9), and fix it on the wire drawing platform (22) of the fully automatic wire drawing equipment, wherein the strip-shaped piece fixture device is provided with more than two positioning units arranged side by side; Step 2: Positioning a plurality of frame workpieces (9) in corresponding positioning units respectively, with the processing surfaces of the frame workpieces (9) being arranged to be horizontally aligned, and the interval between two adjacent frame workpieces (9) being no greater than 2 mm; Step 3: Start the fully automatic wire drawing equipment, and the abrasive belt (4) continuously runs at a first wire drawing speed of 10m / s-20m / s; the pressing component (6) movably presses the abrasive belt (4) so ​​that the frosted surface of the abrasive belt (4) is in close contact with the processing surface of the frame workpiece (9), and at the same time, the ultrasonic transducer (69) is started and is in an enabled state of 28KHZ-100KHZ; the pressing component (6) moves a stroke along the length direction of the frame workpiece (9), and the moving direction of the pressing component (6) is opposite to the running direction of the abrasive belt (4), and the moving speed of the pressing component (6) is 1m / s-3m / s, so as to complete a wire drawing process of each frame workpiece (9); Step 4: the pressing component (6) is separated from the pressing sand belt (4), the ultrasonic transducer (69) of the pressing component (6) is stopped from being enabled, and the pressing component (6) is moved back to the initial position; Step 5: The abrasive belt (4) is continuously operated at a second wire drawing speed of 5 m / s-10 m / s; the pressing component (6) movably presses the abrasive belt (4) so ​​that the frosted surface of the abrasive belt (4) is closely attached to the processing surface of the frame workpiece (9); the pressing component (6) performs a downward pressing stroke, and its travel speed is 0.5 m / s-1 m / s. At the same time, the swing driving device drives the strip tooling device and all the frame workpieces (9) to swing back and forth in the front and rear directions, and the swing speed of the frame workpiece (9) is 0.8 m / s-1.5 m / s, so as to complete the secondary wire drawing process of each frame workpiece (9); Step 6: The pressing assembly (6) is separated from the pressing abrasive belt (4), the fully automatic wire drawing equipment is stopped, each frame workpiece (9) is taken out, and the composite wire drawing grinding of the frame workpiece (9) is completed.

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