A wire saw bead automatic bidirectional cold pressing forming machine

Abstract

The present invention discloses an automatic bidirectional cold press forming machine for wire rope saw beads, comprising: a cold press device, comprising a first lower template, a second lower template, a middle template and an upper template arranged in sequence from bottom to top, a lower core rod fixedly arranged vertically on the first lower template, and the first lower template is driven by a first telescopic driving mechanism to move up and down relative to the middle template; a lower die punch fixedly arranged vertically on the second lower template, and the second lower template is driven by a second telescopic driving mechanism to move up and down relative to the middle template; a die cup fixedly arranged vertically on the middle template; an upper core rod elastically arranged vertically on the upper template, an upper die punch fixedly arranged vertically on the upper template, and the upper template is driven by a third telescopic driving mechanism to move up and down relative to the middle template; a powder conveying device is arranged beside the die cup. The automatic bidirectional cold press forming machine for wire rope saw beads of the present invention has a novel overall design and a compact structure, can realize bidirectional pressing and forming of beads, and has a good production effect.

Description

[0001] This invention is a divisional application of the invention patent application with application number 202011587449.4, application date December 29, 2020, and name “An automatic cold press for producing rope saw beads and its control method”. Technical Field

[0002] The invention belongs to the technical field of wire saw bead production equipment, and in particular relates to an automatic bidirectional cold-pressing forming machine for wire saw bead. Background Art

[0003] At present, diamond beaded wire saws are more and more widely used in stone processing and building removal industries, and the demand for diamond beaded wire saws is also increasing. According to incomplete statistics, the annual output of wire saws by domestic manufacturers in China alone has exceeded 20 million meters, and is still growing rapidly.

[0004] An important process in the production of diamond beaded wire saws is the pressing of diamond powder. After fully mixing various metal powders (such as iron powder, cobalt powder, copper powder, etc.) of different weights with diamond particles, they are pressed together with the metal matrix in a mold to form wire saw beads. The existing cold press uses unidirectional pressing, which easily leads to different densities of the beads at the top and bottom, resulting in poor use of the beads. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide an automatic bidirectional cold-pressing forming machine for wire saw beads.

[0006] To achieve the above object, the present invention adopts the following technical solution: a wire saw bead automatic bidirectional cold press forming machine, comprising:

[0007] A cold pressing device is used for automatically pressing a matrix and powder to form beads; the cold pressing device comprises a first lower template, a second lower template, a middle template and an upper template which are arranged in sequence from bottom to top, a lower core rod is fixedly provided on the first lower template, and the first lower template is driven by a first telescopic driving mechanism to move up and down relative to the middle template; a lower die punch is fixedly provided on the second lower template, the upper end of the lower core rod extends into the lower part of the lower die punch and the two are slidably matched, and the second lower template is driven by a second telescopic driving mechanism to move up and down relative to the middle template; a die cup is fixedly provided on the middle template, the upper end of the lower die punch extends into the lower part of the die cup and the two are slidably matched; an upper core rod is elastically provided on the upper template, an upper die punch is fixedly provided on the upper template, the lower end of the upper core rod extends into the upper die punch and is exposed to a predetermined length, and the upper The lower end of the die punch is aligned downward with the die cup and the two can slide together, and the upper die plate is driven by the third telescopic driving mechanism to move up and down relative to the middle die plate; a U-shaped block is fixedly installed on the bottom surface of the upper die plate, and the upper core rod is vertically movably installed in the middle of the U-shaped block; a pressure plate is elastically connected to the bottom of the upper die plate, and the middle part of the pressure plate passes through the U-shaped groove of the U-shaped block and can move up and down in the U-shaped groove, and the bottom surface of the pressure plate bears against the top surface of the upper core rod, and the upper die punch is fixedly arranged vertically on the bottom surface of the U-shaped block; lifting rods are fixedly arranged vertically at both ends of the pressure plate, and two spring seat holes are provided on the upper die plate, and the upper end of the lifting rod passes through the spring seat hole and is hoisted on the upper die plate, and a compression spring surrounding the outside of the lifting rod is arranged in the spring seat hole, and the upper end of the compression spring abuts against the upper die plate, and the lower end of the compression spring abuts against the pressure plate;

[0008] A powder conveying device is arranged beside the mold cup and is used for automatically separating the powder and pushing the powder into the mold cup; the powder conveying device comprises a base, a powder hopper and a powder feeding slider, the powder hopper is fixedly installed above the base, the bottom of the powder hopper has a powder discharge port, a powder valve whose switch is controlled by a valve driving mechanism is arranged at the powder discharge port, the powder feeding slider is slidably installed on the base, a slider driving mechanism for driving the powder feeding slider to move back and forth horizontally is installed on the base, and the powder feeding slider A powder metering chamber is vertically opened on the upper part and is aligned with the powder discharge port in upper and lower directions. A powder metering rod that can slide with the powder metering chamber is arranged below the powder metering chamber, and the powder metering rod is driven by the metering rod driving mechanism to move up and down; a powder arch breaking rod is vertically arranged in the powder hopper, and an arch breaking rod driving mechanism for driving the powder arch breaking rod to move up and down is fixedly installed on the powder hopper, and the lower end of the powder arch breaking rod is aligned with the powder discharge port and the powder metering chamber; the arch breaking rod driving mechanism is a powder arch breaking cylinder.

[0009] Compared with the prior art, the present invention has the following beneficial effects: the overall design of the automatic bidirectional cold-pressing machine for wire saw beads is novel and compact in structure. Among them, the pressing device can realize bidirectional pressing and molding of the beads up and down, ensuring that the density of the beads up and down is relatively uniform, and improving the service life of the beads; the speed and pressure of pressing can be controlled by the first telescopic drive mechanism, the second telescopic drive mechanism and the third telescopic drive mechanism according to the actual production needs, and the production effect is good; at the same time, the production efficiency of wire saw beads is greatly improved. Among them, the powder conveying device can automatically complete the metering, separation and pushing of the powder, which greatly improves the production efficiency of wire saw beads, and can be metered and adjusted according to the amount of powder required for each batch of wire saw beads, and has better adaptability. Among them, the matrix conveying device has a novel design and a compact structure, and can automatically complete the arrangement, separation and pushing of the matrix, which greatly improves the production efficiency of wire saw beads. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front cross-sectional view of the embodiment of the present invention when the upper punch is in a retracted state.

[0011] Figure 2 It is a front cross-sectional view of the embodiment of the present invention when the upper mold is pressed into place.

[0012] Figure 3 It is a left side cross-sectional view of the embodiment of the present invention when the upper mold is pressed into place.

[0013] Figure 4 It is a stereoscopic view of the embodiment of the present invention when the upper punch is in a retracted state.

[0014] Figure 5 It is a top view of the embodiment of the present invention after omitting the vibration plate.

[0015] Figure 6 It is a top view of the second lower template in an embodiment of the present invention.

[0016] Figure 7 It is the main cross-sectional view of the cold pressing device when the upper punch is retracted.

[0017] Figure 8 yes Figure 7 A partial enlarged view of .

[0018] Fig. 9 It is the main sectional view of the cold pressing device when the upper mold is pressed into place.

[0019] Fig.10 yes Fig. 9 A partial enlarged view of .

[0020] Fig.11 It is a left sectional view of the cold pressing device when the upper mold is pressed into place.

[0021] Fig.12 It is a top view of the cold pressing device.

[0022] Fig.13 It is a top view of the second lower mold plate in the cold pressing device.

[0023] Fig.14 It is a front sectional view of the powder conveying device.

[0024] Fig.15 It is a partial top view of the powder conveying device.

[0025] Fig.16 It is a front cross-sectional view of the substrate conveying device.

[0026] Fig.17 is a top view of the substrate conveying device.

[0027] Fig.18 yes Fig.16 A partial enlarged view of .

[0028] Fig.19 yes Fig.17 A partial enlarged view of .

[0029] Fig. 20 It is a top view of the clamping groove in the substrate conveying device.

[0030] Markings in the figure: 100, cold pressing device; 101, frame; 102, table; 103, column; 104, suspension rod; 105, suspension plate; 110, first lower template; 111, lower core rod; 112, first telescopic drive mechanism; 113, pressure sensor; 120, second lower template; 121, lower punch; 122, second telescopic drive mechanism; 123, lifting plate; 124, synchronization rod; 130, middle template; 131, mold cup; 132, fixing ring; 140, upper template; 141, upper core rod; 142, upper punch; 143, third telescopic drive mechanism; 144, U-shaped block; 145, pressing plate; 146, lifting rod; 147, spring seat hole; 148, compression spring; 149, positioning boss; 150, top plate; 151, reset top rod; 210, base.

[0031] 200, powder conveying device; 210, base; 211, horizontal guide rod; 212, drive plate; 213, vertical guide sleeve; 214, guide rail; 215, anti-collision buffer block; 220, powder hopper; 221, powder discharge port; 222, bottom plate; 223, powder discharge hole; 224, vertical flat plate; 225, arc-shaped bending plate; 226, powder storage cavity; 227, support plate; 228, cover plate; 229, second sealing ring; 230, powder feeding slider; 231, slider driving mechanism; 232, powder metering chamber; 233, first sealing ring; 234, push rod; 235, floating joint; 240, powder valve; 241, valve driving mechanism; 242, conducting hole; 243, third sealing ring; 250, powder metering rod; 251, metering rod driving mechanism; 260, powder arch breaking rod; 261, arch breaking rod driving mechanism; 262, arch breaking bracket.

[0032] 1. substrate; 300. substrate conveying device; 310. vibration plate; 320. inclined slide; 330. substrate separation mechanism; 331. substrate separation seat plate; 332. first separation guide plate; 333. second separation guide plate; 334. separation push plate; 335. substrate separation telescopic drive mechanism; 336. horizontal material guide trough; 337. vertical separation trough; 338. vertical material guide hole; 339. vertical material guide sleeve; 340. substrate pushing mechanism; 341. substrate pushing telescopic drive mechanism; 342. automatic clamp; 343. clamping groove. DETAILED DESCRIPTION

[0033] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0034] like Figures 1 to 20 As shown, a wire saw bead automatic bidirectional cold pressing forming machine comprises:

[0035] The cold pressing device 100 is used to automatically press the matrix and powder into beads; please refer to Figures 7 to 13The cold pressing device 100 includes a first lower template 110, a second lower template 120, a middle template 130 and an upper template 140 which are arranged in sequence (in parallel) from bottom to top. A lower core rod 111 is fixedly disposed vertically on the first lower template 110 (such as at the center), and the first lower template 110 is driven by a first telescopic driving mechanism 112 to move up and down relative to the middle template 130; a lower die punch 121 is fixedly disposed vertically on the second lower template 120 (such as at the center), and the upper end of the lower core rod 111 extends into the lower part of the lower die punch 121 and the two are slidably matched, and the second lower template 120 is driven by a second telescopic driving mechanism 122 to move up and down relative to the middle die punch 121. The plate 130 moves up and down; a mold cup 131 is fixedly provided on the middle mold plate 130 (such as the center position), and the upper end of the lower die punch 121 extends into the lower part of the mold cup 131 and the two are slidably matched; an upper core rod 141 is elastically provided on the upper mold plate 140 (such as the center position), and an upper die punch 142 is fixedly provided on the upper mold plate 140 (such as the center position), and the lower end of the upper core rod 141 extends into the upper die punch 142 and is exposed to a predetermined length, and the lower end of the upper die punch 142 is downwardly aligned with the mold cup 131 and the two can be slidably matched, and the upper mold plate 140 is driven by the third telescopic driving mechanism 143 to move up and down relative to the middle mold plate 130;

[0036] The powder conveying device 200 is disposed beside the mold cup 131 and is used for automatically separating the powder and pushing the powder into the mold cup 131 .

[0037] In one embodiment, please refer to Figures 7 to 13 The bottom surface (such as the center position) of the upper template 140 is fixedly installed with a U-shaped block 144, the upper core rod 141 is vertically and movably installed in the middle of the U-shaped block 144, and a pressure plate 145 is elastically connected to the bottom of the upper template 140. The middle part of the pressure plate 145 passes through the U-shaped groove of the U-shaped block 144 and can move up and down in the U-shaped groove. The bottom surface of the pressure plate 145 supports the top surface of the upper core rod 141, and the upper die punch 142 is fixedly arranged vertically on the bottom surface of the U-shaped block 144. Among them, the fixed ends of the upper die punch 142, the lower die punch 121 and the lower core rod 111 can be detachably installed at the corresponding position by bolts using a pressure ring, which is convenient for disassembly and replacement. Among them, the mold cup 131 can be detachably installed on the base 210 by bolts using a fixing ring 132, and the base 210 can be detachably installed on the middle template 130 by bolts.

[0038] In one embodiment, please refer to Figures 7 to 13, lifting rods 146 are fixedly arranged at both ends of the pressing plate 145, and two spring seat holes 147 are provided on the upper template 140. The upper end of the lifting rod 146 passes through the spring seat hole 147 and is then hoisted on the upper template 140. A compression spring 148 surrounding the lifting rod 146 is arranged in the spring seat hole 147. The upper end of the compression spring 148 abuts against the upper template 140, and the lower end of the compression spring 148 abuts against the pressing plate 145. The lifting rod 146 can be a double-headed screw, and nuts (and gaskets) are fixedly installed at both ends of the double-headed screw. The lower end of the double-headed screw passes through the pressing plate 145 and is locked by the nut. The upper end of the double-headed screw passes through the upper template 140 from the spring seat hole 147 and is then installed with a nut.

[0039] In one embodiment, please refer to Figures 7 to 13 The cold pressing device also includes a top plate 150, which is arranged above the upper template 140 and fixed relatively to the middle template 130. Two reset push rods 151 for pushing the pressing plate 145 downward are fixedly installed on the bottom surface of the top plate 150. Two first vertical avoidance holes for the reset push rods 151 to pass through are provided on the upper template 140. The reset push rods 151 can prevent the upper core rod 141 from being stuck with the upper die punch 142. When the upper core rod 141 is stuck with the upper die punch 142, the reset push rods 151 push the pressing plate 145 downward when the upper die punch 142 rises, and then push the upper core rod 141 downward, and reset smoothly; the fixed end of the third telescopic driving mechanism 143 is installed on the top surface of the top plate 150, and the movable end of the third telescopic driving mechanism 143 passes through the top plate 150 and is fixedly connected to the upper template 140. The upper portion of the reset push rod 151 may be a threaded rod, the bottom surface of the top plate 150 may be provided with a threaded hole matched with the threaded rod, and a locking nut may be sleeved on the threaded rod.

[0040] In one embodiment, please refer to Figures 7 to 13The cold pressing device also includes a frame 101, a table 102 is arranged on the top of the frame 101, a fixed end of the first telescopic driving mechanism 112 is fixedly installed on the bottom surface of the table 102, and a movable end of the first telescopic driving mechanism 112 passes through the table 102 and is fixedly connected to the first lower template 110, a plurality of columns 103 are fixedly arranged on the table 102, the top plate 150 is fixedly installed between the tops of the plurality of columns 103, the middle template 130 is fixedly installed between the middle parts of the plurality of columns 103, and the upper template 140 The first lower template 110 and the second lower template 120 are both slidably installed between the lower parts of the plurality of columns 103. The movable end of the second telescopic driving mechanism 122 is fixedly connected with a lifting plate 123. A plurality of synchronization rods 124 are respectively fixedly connected between the lifting plate 123 and the second lower template 120. The table 102 is provided with a second vertical avoidance hole for the synchronization rod 124 to pass through. The first lower template 110 is provided with a third vertical avoidance hole for the synchronization rod 124 to pass through. The first lower template 110, the second lower template 120 and the upper template 140 are fixedly embedded with a vertical sliding sleeve that is slidably matched with the column 103. The vertical sliding sleeve can be disassembled and replaced, so as to avoid the first lower template 110, the second lower template 120 and the upper template 140 from directly rubbing against the column 103 and improve the service life of the first lower template 110, the second lower template 120 and the upper template 140.

[0041] In one embodiment, please refer to Figures 7 to 13 A pressure sensor 113 is fixedly connected between the movable end of the first telescopic drive mechanism 112 and the first lower template 110. The movable end of the first telescopic drive mechanism 112 passes through the table 102 and is fixedly connected to the lower end of the pressure sensor 113. The upper end of the pressure sensor 113 is fixedly connected to the first lower template 110. During pressing, the pressure on the lower core rod 111 can be sensed by the pressure sensor 113, which is convenient for controlling the action of the first telescopic drive mechanism 112 and other components. For example, when the pressure of the pressure sensor 113 rises significantly (such as reaching about 50kg), the first telescopic drive mechanism 112 slowly retreats, and after synchronously descending about 12mm with the upper punch 142 and the upper core rod 141, the second telescopic drive mechanism 122 begins to extend rapidly, the lower punch 121 first rises rapidly by about 30mm and then slowly rises by about 5mm, and at the same time, the upper punch 142 also slowly descends by about 7mm, completing the bidirectional pressing.

[0042] In one embodiment, please refer to Figures 7 to 13, a plurality of (e.g., two) suspension rods 104 may be fixedly installed below the platform 102, a suspension board 105 may be fixedly installed between the lower ends of the plurality of suspension rods 104, a fixed end of the second telescopic drive mechanism 122 may be fixedly installed on the bottom surface of the suspension board 105, and a movable end of the second telescopic drive mechanism 122 may pass through the suspension board 105 and be fixedly connected to the lifting board 123. Of course, the fixed end of the second telescopic drive mechanism 122 may also be directly installed on the frame 101.

[0043] In one embodiment, please refer to Figures 7 to 13 The lower end of the upper core rod 141 is provided with a positioning convex head 149 for positioning the base body, and the positioning bald head 149 can be inserted into the base body, and the positioning is reliable; of course, the lower end of the upper core rod 141 can also be designed to be conical, which can also play a positioning role. For the convenience of manufacturing, the size and shape of the first lower template 110 and the second lower template 120 can be the same, and the size and shape of the upper template 140 and the top plate 150 can be the same.

[0044] In one embodiment, please refer to Figures 7 to 13 The first telescopic drive mechanism 112 is preferably but not limited to being a servo electric cylinder for the lower core rod 111, the second telescopic drive mechanism 122 is preferably but not limited to being a servo electric cylinder for the lower punch 121, and the third telescopic drive mechanism 143 is preferably but not limited to being a servo electric cylinder for the upper punch 142. The servo electric cylinder can accurately control the speed and height position according to the process requirements, so that the powder pressing process in the mold cup 131 reaches an ideal state, and qualified (higher quality) beads are pressed out; of course, the first telescopic drive mechanism 112, the second telescopic drive mechanism 122 or the third telescopic drive mechanism 143 can also adopt telescopic drive mechanisms such as air cylinders, oil cylinders, and electric push rods.

[0045] Please refer to Figures 7 to 13The working principle of the cold pressing device is as follows: before pressing, the measured powder is first pushed into the mold cup 131, and then the matrix is ​​pushed above the mold cup 131. During pressing, the upper core rod 141 and the upper die punch 142 press down, and the upper core rod 141 first supports the matrix. After the compression spring 148 is compressed during the process of the upper die punch 142 going down a certain distance, the upper core rod 141 and the upper die punch 142 continue to move downward, pressing the matrix tightly against the lower core rod 111 and then continue to move downward. At the same time, the lower core rod 111 moves downward synchronously with the upper core rod 141 and the upper die punch 142, and the matrix is ​​sent into the powder in the mold cup 131; when the upper die punch 142 starts to press the powder in the upper mold cup 131, At the same time, the lower punch 121 also starts to move upward at the same speed as the upper punch 142, and the powder is pressed in both directions under the extrusion of the upper punch 142 and the lower punch 121; after the powder in the mold cup 131 is pressed to a predetermined height, the upper punch 142, the lower punch 121 and the lower core rod 111 stop moving and maintain the pressure for a period of time to allow the pressed powder to fully set; finally, the upper punch 142, the lower punch 121 and the lower core rod 111 move upward to push the pressed beads out of the mold cup 131.

[0046] In one embodiment, please refer to Figures 14 and 15 The powder conveying device 200 includes a base 210, a powder hopper 220 and a powder feeding slider 230. The powder hopper 220 is fixedly installed above the base 210. The bottom of the powder hopper 220 is provided with a powder discharge port 221. A powder valve 240 whose switch is controlled by a valve driving mechanism 241 is arranged at the powder discharge port 221. The powder feeding slider 230 is slidably installed on the base 210. A slider driving mechanism 231 for driving the powder feeding slider 230 to reciprocate horizontally is installed on the base 210. A powder metering cavity 232 which is aligned with and communicates with the powder discharge port 221 is vertically opened on the powder feeding slider 230. A powder metering rod 250 which can slide with the powder metering cavity 232 is arranged below the powder metering cavity 232. The powder metering rod 250 is driven by the metering rod driving mechanism 251 to move up and down.

[0047] In one embodiment, a powder arch-breaking rod 260 is vertically arranged in the powder hopper 220, and an arch-breaking rod driving mechanism 261 for driving the powder arch-breaking rod 260 to move up and down is fixedly installed on the powder hopper 220, and the lower end of the powder arch-breaking rod 260 is aligned with the powder discharge port 221 and the powder metering chamber 232, and the powder in the powder metering chamber 232 is broken by the powder arch-breaking rod 260, thereby avoiding the occurrence of insufficient feeding. Among them, the arch-breaking rod driving mechanism 261 is preferably but not limited to a powder arch-breaking cylinder, which has the advantages of rapid action, fast response, and good adaptability to the working environment; of course, the arch-breaking rod driving mechanism 261 can also use a telescopic driving mechanism such as an oil cylinder, an electric cylinder, and an electric push rod.

[0048] In one embodiment, two mutually parallel guide rails 214 are fixedly mounted on the base 210, and a guide groove is formed between the two guide rails 214. The guide groove cooperates with the powder feeding slider 230, and the powder feeding slider 230 is guided to perform linear reciprocating motion through the guide rails 214. In order to avoid damage to the components of the mold in the event of a failure, an anti-collision buffer block 215 is installed at the front end of the base 210 (such as through an elastic pad), and a V-shaped notch is opened at the center of the front end of the anti-collision buffer block 215.

[0049] In one embodiment, a bottom plate 222 is welded to the bottom end of the powder hopper 220, and the bottom plate 222 is fixedly mounted on the base 210. A powder discharge hole 223 connected to the powder discharge port 221 is vertically opened on the bottom plate 222. The fixed end of the valve drive mechanism 241 is installed above the bottom plate 222. The powder valve 240 is a gate plate, which is slidably mounted between the bottom plate 222 and the powder feeding slider 230. The gate plate is fixedly connected to the movable end of the valve drive mechanism 241. A conducting hole 242 is opened on the gate plate. The conducting hole 242 connects the powder discharge hole 223 and the powder metering cavity 232 when the powder is dropped. The gate plate separates the powder discharge hole 223 and the powder metering cavity 232 when the powder is dropped.

[0050] In one embodiment, the powder hopper 220 is in a semi-funnel shape, and includes a vertical flat plate 224 and an arc-shaped bent plate 225. The vertical flat plate 224 and the arc-shaped bent plate 225 are welded to form a powder storage chamber 226 that is wide at the top and narrow at the bottom (e.g., the upper part is semi-cylindrical and the lower part is semi-conical). A support plate 227 is welded between the bottom plate 222 and the arc-shaped bent plate 225, and a cover plate 228 is provided at the top of the powder hopper 220. The fixed end of the arch-breaking rod driving mechanism 261 can be fixed to the outer side wall of the vertical flat plate 224 through an arch-breaking bracket 262, and the movable end of the arch-breaking rod driving mechanism 261 is fixedly connected to the upper end of the powder arch-breaking rod 260. The cover plate 228 can be provided with an avoidance hole for the powder arch-breaking rod 260 to pass through.

[0051] In one embodiment, the valve driving mechanism 241 is preferably but not limited to a valve translation cylinder, which has the advantages of rapid action, quick response, and good adaptability to the working environment; of course, the valve driving mechanism 241 can also be a telescopic driving mechanism such as an oil cylinder, an electric cylinder, or an electric push rod.

[0052] In one embodiment, a first sealing ring groove surrounding the powder metering chamber 232 is formed on the bottom side of the powder feeding slider 230, and a first sealing ring 233 is installed in the first sealing ring groove; a second sealing ring groove surrounding the powder discharge hole 223 is formed on the bottom side of the bottom plate 222, and a second sealing ring 229 is installed in the second sealing ring groove; a third sealing ring groove surrounding the guide hole 242 is formed on the bottom side of the gate plate, and a third sealing ring 243 is installed in the third sealing ring groove. By setting the sealing ring, the powder is reduced from entering the gap and the service life of each component is improved.

[0053] In one embodiment, the fixed end of the slider driving mechanism 231 is installed below the base 210, and two left and right parallel horizontal guide rods 211 are fixed to the rear end of the base 210. A driving plate 212 is slidably sleeved between the two horizontal guide rods 211. The lower end of the driving plate 212 is fixedly connected to the movable end of the slider driving mechanism 231, and the upper end of the driving plate 212 (such as through a floating joint 235 and a push rod 234) is fixedly connected to one end of the powder feeding slider 230. This driving structure can save space and has a compact structure.

[0054] In one embodiment, the slider driving mechanism 231 is preferably, but not limited to, a powder pushing cylinder, which has the advantages of rapid action, quick response, and good adaptability to the working environment; of course, the slider driving mechanism 231 can also be a telescopic driving mechanism such as an oil cylinder, an electric cylinder, or an electric push rod. The fixed end of the slider driving mechanism 231 is relatively fixed to the base 210, and the movable end of the slider driving mechanism 231 is fixedly connected to the lower end of the powder metering rod 250.

[0055] In one embodiment, a vertical guide sleeve 213 is fixedly mounted on the base 210, and the vertical guide sleeve 213 is detachable and easy to replace. The powder metering rod 250 is slidably matched with the vertical guide sleeve 213, and the powder metering cavity 232 is aligned with the vertical guide sleeve 213 during feeding, thereby avoiding direct friction between the base 210 and the powder metering rod 250, thereby improving the service life of the base 210. Of course, the vertical guide sleeve 213 can also be eliminated, and a guide hole can be directly opened on the base 210.

[0056] In one embodiment, the powder metering chamber 232 is aligned with the mold cup 131 during discharge, so that the powder in the powder metering chamber 232 falls into the mold cup 131. During feeding, the slider driving mechanism 231 drives the powder metering chamber 232 of the powder feeding slider 230 to move from above the vertical guide sleeve 213 to above the mold cup 131.

[0057] In one embodiment, the metering rod driving mechanism 251 is preferably but not limited to a powder metering servo electric cylinder, which can accurately control the speed and position, and the powder metering is more accurate; of course, the metering rod driving mechanism 251 can also adopt a telescopic driving mechanism such as a cylinder, an oil cylinder, and an electric push rod.

[0058] The working principle of the powder conveying device is as follows: first, the metering rod driving mechanism 251 drives the powder metering rod 250 to rise to the set position (set according to the weight of the powder formula), and adjusts the size of the powder metering chamber 232; then, the valve driving mechanism 241 pushes the powder valve 240 to open the powder discharge port 221 (and the powder discharge hole 223), and the powder in the powder hopper 220 falls into the powder metering chamber 232; then, the arch breaking rod driving mechanism 261 drives the powder arch breaking rod 260 to extend and retract once or twice (based on the According to the actual arch breaking situation); then the valve driving mechanism 241 pushes the powder valve 240 to close the powder discharge port 221 (and the powder discharge hole 223); then the metering rod driving mechanism 251 drives the powder metering rod 250 to drop to the zero position; then the slider driving mechanism 231 drives the powder feeding slider 230 to move horizontally, and pushes the measured powder to the pressing position of the rope saw beads (i.e. the mold cup 131 position), and falls into the mold cup 131; finally, the slider driving mechanism 231 drives the powder feeding slider 230 to return to its original position.

[0059] In one embodiment, please refer to Figures 1 to 20 The wire saw bead automatic bidirectional cold press molding machine may further include a substrate conveying device 300, which is arranged beside the mold cup 131 and is used to automatically arrange and separate the substrates and push the substrates above the mold cup 131. The conveying directions of the powder conveying device 200 and the substrate conveying device 300 may be perpendicular to each other.

[0060] In one embodiment, please refer to Figures 16 to 20 The substrate conveying device 300 includes a vibration plate 310, an inclined slide 320, a substrate separation mechanism 330 and a substrate pushing mechanism 340. The discharge end of the vibration plate 310 is connected to the higher end of the inclined slide 320, the lower end of the inclined slide 320 is connected to the entrance of the substrate separation mechanism 330, and the outlet of the substrate separation mechanism 330 is opposite to the execution end of the substrate pushing mechanism 340.

[0061] In one embodiment, please refer to Figures 16 to 20The substrate separation mechanism 330 includes a substrate separation seat plate 331, a first separation guide plate 332, a second separation guide plate 333, a separation push plate 334 and a substrate separation telescopic driving mechanism 335. The first separation guide plate 332 and the second separation guide plate 333 are symmetrically fixedly arranged on the substrate separation seat plate 331. A horizontal material guide groove 336 is formed between the first separation guide plate 332 and the second separation guide plate 333. The entrance of the horizontal material guide groove 336 is connected to the lower end of the inclined slide 320. The fixed end of the substrate separation telescopic driving mechanism 335 is installed on the substrate separation seat plate 331. The telescopic direction of the driving mechanism 335 is perpendicular to the conveying direction of the inclined slide 320. The separation push plate 334 is fixedly mounted on the movable end of the substrate separation telescopic driving mechanism 335. A vertical separation groove 337 capable of accommodating only one substrate is provided on the side of the separation push plate 334 close to the horizontal material guide groove 336. The vertical separation groove 337 is connected to the outlet of the horizontal material guide groove 336 when the substrate separation telescopic driving mechanism 335 is retracted. A vertical material guide hole 338 is provided on the substrate separation seat plate 331. The vertical separation groove 337 is opposite to the vertical material guide hole 338 when the substrate separation telescopic driving mechanism 335 is extended. The cross section of the vertical separation groove 337 is U-shaped.

[0062] In one embodiment, please refer to Figures 16 to 20 The vertical material guide hole 338 (preferably a countersunk hole) is embedded with a vertical material guide sleeve 339, which is detachable and easy to replace. The substrate falls into the vertical material guide sleeve 339 from the vertical separation groove 337, avoiding direct friction between the inner wall of the vertical material guide hole 338 and the substrate, thereby increasing the service life of the substrate separation seat plate 331.

[0063] In one embodiment, please refer to Figures 16 to 20 The separation push plate 334 is slidably matched with the side surfaces of the first separation guide plate 332 and the second separation guide plate 333, respectively, and the separation push plate 334 is guided to move horizontally by the first separation guide plate 332 and the second separation guide plate 333, so that the movement is more stable. The first separation guide plate 332 and the second separation guide plate 333 can be detachably fixedly connected to the base separation seat plate 331, or can be integrally formed with the base separation seat plate 331.

[0064] In one embodiment, please refer to Figures 16 to 20 The base separation telescopic drive mechanism 335 is preferably but not limited to a base pushing cylinder, which has the advantages of rapid action, fast response, and good adaptability to the working environment; of course, the base separation telescopic drive mechanism 335 can also be a telescopic drive mechanism such as an oil cylinder, an electric cylinder, and an electric push rod.

[0065] In one embodiment, please refer to Figures 16 to 20The substrate pushing mechanism 340 includes a substrate pushing telescopic driving mechanism 341 and an automatic clamping jaw 342. The fixed end of the automatic clamping jaw 342 is installed on the movable end of the substrate pushing telescopic driving mechanism 341. A clamping groove 343 is provided between the two fingers of the automatic clamping jaw 342, that is, half of the clamping groove 343 is provided on the opposite surfaces of the two fingers. The clamping groove 343 is vertically opposite to the vertical material guide hole 338 when the substrate pushing telescopic driving mechanism 341 is retracted, and the clamping groove 343 is vertically opposite to the mold cup when the substrate pushing telescopic driving mechanism 341 is extended. The upper end of the clamping groove 343 is provided with a bell mouth to facilitate guiding the substrate to fall into the clamping groove 343 from the vertical guide sleeve.

[0066] In one embodiment, please refer to Figures 16 to 20 The base pushing telescopic drive mechanism 341 is preferably, but not limited to, a base pushing cylinder. The cylinder has the advantages of rapid action, quick response, and good adaptability to the working environment; of course, the base pushing telescopic drive mechanism 341 can also be a telescopic drive mechanism such as an oil cylinder, an electric cylinder, or an electric push rod. The automatic gripper 342 is preferably, but not limited to, a pneumatic gripper, which has the advantages of rapid action, quick response, and good adaptability to the working environment; of course, the automatic gripper 342 can also be an electric gripper, a hydraulic gripper, or other types.

[0067] In one embodiment, please refer to Figures 16 to 20 The inclined slide 320 , the substrate separation mechanism 330 and the substrate pushing mechanism 340 are all installed on the middle template 130 , and the vibration plate 310 and the middle template 130 are both fixedly installed on the frame 101 .

[0068] The working principle of the substrate conveying device is as follows: first, the vibrating plate 310 automatically arranges and outputs the substrates, and then the substrates are sent into the substrate separation mechanism 330 through the inclined slide 320. The substrates are lined up and enter the horizontal material guide groove 336 and the vertical separation groove 337 in turn. Then the substrate separation telescopic drive mechanism 335 drives the separation push plate 334 to extend, and the single substrate in the vertical separation groove 337 is horizontally moved to the top of the vertical material guide sleeve 339, so that the substrate passes through the vertical material guide sleeve 339 and falls into the clamping groove 343 of the automatic clamp 342; after the automatic clamp 342 clamps the substrate, the substrate push telescopic drive mechanism 341 extends to push the substrate to the top of the mold cup 131, specifically to the lower core rod 111; after the upper core rod 111 supports the substrate, the automatic clamp 342 is released, the substrate push telescopic drive mechanism 341 contracts, and the automatic clamp 342 returns to its original position.

[0069] like Figures 1 to 20 As shown, a control method of a wire saw bead automatic bidirectional cold pressing forming machine comprises:

[0070] Control the powder conveying device 200 to work and push the measured powder into the mold cup 131;

[0071] Control the substrate conveying device 300 to work and push the substrate to the top of the mold cup 131;

[0072] The pressing device 100 is controlled to work, the upper core rod 141 and the upper die punch 142 are pressed down, the upper core rod 141 first supports the substrate, and the compression spring 148 is compressed during the process of the upper die punch 142 going down a certain distance, and the upper core rod 141 and the upper die punch 142 continue to go down, pressing the substrate tightly against the lower core rod 111 and then continue to go down, and at the same time, the lower core rod 111, the upper core rod 141 and the upper die punch 142 go down synchronously together, and the substrate is sent into the powder in the die cup 131; when the upper die punch 142 starts to press the upper die cup 131 When the powder in the mold cup 131 is pressed to a predetermined height, the upper mold punch 142, the lower mold punch 121 and the lower core rod 111 stop moving and maintain the pressure for a period of time to allow the pressed powder to fully set; finally, the upper mold punch 142, the lower mold punch 121 and the lower core rod 111 move upward to push the pressed beads out of the mold cup 131.

[0073] In one embodiment, the specific steps of the control method are as follows:

[0074] S1. The powder metering rod 250 is in place: the metering rod driving mechanism 251 drives the powder metering rod 250 to rise to a set position (set according to the formula weight).

[0075] S2, opening the powder valve 240: the valve driving mechanism 241 pushes the powder valve to open the powder discharge port 221 (and the powder discharge hole 223), and the powder in the powder hopper 220 falls into the powder metering chamber 232.

[0076] S3. Powder arch breaking: the arch breaking rod driving mechanism 261 drives the powder arch breaking rod 260 to extend and retract once or twice (determined according to the actual arch breaking situation).

[0077] S4. Close the powder valve 240 and separate the substrate: the valve drive mechanism 241 pushes the powder valve 240 to close the powder discharge port 221 (and the powder discharge hole 223); at the same time, the substrate separation telescopic drive mechanism 335 drives the separation push plate 334 to extend, and moves the single substrate in the vertical separation groove 337 horizontally to the top of the vertical guide sleeve 339, so that the substrate passes through the vertical guide sleeve 339 and falls into the clamping groove 343 of the automatic clamp 342.

[0078] S5. Retract the powder metering rod 250: the metering rod driving mechanism 251 drives the powder metering rod 250 to descend to the zero position.

[0079] S6. Powder feeding: the slider driving mechanism 231 drives the powder feeding slider 230 to extend, and pushes the measured powder to the pressing position of the wire saw beads (i.e., the position of the mold cup 131 ), and falls into the mold cup 131 .

[0080] S7, the lower core rod 111 is extended and retracted: the first retractable driving mechanism 112 is driven, and the lower core rod 111 first rapidly descends a predetermined distance (eg, 30-50 mm), and then reverses and rapidly rises to the zero position.

[0081] S8, powder feeding return: the slider driving mechanism 231 drives the powder feeding slider 230 to return to the original position.

[0082] S9, sending the substrate: after the automatic clamping claws 342 clamp the substrate, the substrate pushing telescopic driving mechanism 341 extends to push the substrate to the top of the mold cup 131 , specifically, to the lower core rod 111 .

[0083] S10, base body positioning: the third telescopic drive mechanism 143 is rapidly extended, the upper core rod 141 and the upper die punch 142 are rapidly lowered (eg, 60 mm) to a preliminary position (+10 mm), and the upper core rod 141 is against the base body.

[0084] S11, release the automatic gripper 342: the automatic gripper 342 (two fingers) is released.

[0085] S12, the base pushes the telescopic drive mechanism 341 back and presses at the same time: the base pushes the telescopic drive mechanism 341 back, and at the same time the third telescopic drive mechanism 143 extends slowly, the upper core rod 141 and the upper die punch 142 slowly descend a predetermined distance (such as 10 mm), until the compression spring 148 is compressed to the bottom, the upper core rod 141 and the lower core rod 111 push the base tightly without gap, and when the pressure of the pressure sensor 113 on the lower core rod 111 rises significantly (such as reaching 50 kg), the first telescopic drive mechanism 112 slowly retreats, the upper die punch 142 and the upper core rod 141 synchronously descend a predetermined distance (such as 12 mm), and then the second telescopic drive mechanism 122 starts to extend quickly, the lower die punch 121 first quickly rises a predetermined distance (such as 30 mm) and then slowly rises a predetermined distance (such as 5 mm), and at the same time the upper die punch 142 also slowly descends a predetermined distance (such as 7 mm), completing bidirectional pressing.

[0086] S13, pressure holding: After the upper die punch 142 and the lower die punch 121 are pressed into place, they are kept for a predetermined time, and the specific time is determined according to the actual pressing effect.

[0087] S14, bead withdrawal: the third telescopic drive mechanism 143 quickly withdraws, the upper punch 142 and the upper core rod 141 rise a predetermined distance (such as 90 mm) and return to the initial position; at the same time, the lower punch 121 and the lower core rod 111 rise a predetermined distance (such as 20 mm) at a medium speed to the zero position, and the pressed beads are pushed out of the mold cup 131.

[0088] S15, the lower punch 121 is reset: the first telescopic driving mechanism 112 is quickly retracted, and the lower punch 111 is quickly dropped by a predetermined distance (eg, 55 mm) and returns to the initial position.

[0089] S16, start the next cycle: follow the same steps from S1 to S15 to carry out the next cycle, feeding the powder while pushing out the previously pressed beads.

[0090] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equalization change and modification made to the above embodiment by any technician familiar with the field without departing from the content of the technical solution of the present invention according to the technical essence of the present invention shall fall within the scope of the present invention.

Claims

1. A wire saw bead automatic bidirectional cold press forming machine, characterized in that: include: A cold pressing device is used for automatically pressing a matrix and powder to form beads; the cold pressing device comprises a first lower template, a second lower template, a middle template and an upper template which are arranged in sequence from bottom to top, a lower core rod is fixedly provided on the first lower template, and the first lower template is driven by a first telescopic driving mechanism to move up and down relative to the middle template; a lower die punch is fixedly provided on the second lower template, the upper end of the lower core rod extends into the lower part of the lower die punch and the two are slidably matched, and the second lower template is driven by a second telescopic driving mechanism to move up and down relative to the middle template; a die cup is fixedly provided on the middle template, the upper end of the lower die punch extends into the lower part of the die cup and the two are slidably matched; an upper core rod is elastically provided on the upper template, an upper die punch is fixedly provided on the upper template, the lower end of the upper core rod extends into the upper die punch and is exposed to a predetermined length, and the upper The lower end of the die punch is aligned downward with the die cup and the two can slide together, and the upper die plate is driven by the third telescopic driving mechanism to move up and down relative to the middle die plate; a U-shaped block is fixedly installed on the bottom surface of the upper die plate, and the upper core rod is vertically movably installed in the middle of the U-shaped block; a pressure plate is elastically connected to the bottom of the upper die plate, and the middle part of the pressure plate passes through the U-shaped groove of the U-shaped block and can move up and down in the U-shaped groove, and the bottom surface of the pressure plate bears against the top surface of the upper core rod, and the upper die punch is fixedly arranged vertically on the bottom surface of the U-shaped block; lifting rods are fixedly arranged vertically at both ends of the pressure plate, and two spring seat holes are provided on the upper die plate, and the upper end of the lifting rod passes through the spring seat hole and is hoisted on the upper die plate, and a compression spring surrounding the outside of the lifting rod is arranged in the spring seat hole, and the upper end of the compression spring abuts against the upper die plate, and the lower end of the compression spring abuts against the pressure plate; A powder conveying device is arranged beside the mold cup and is used for automatically separating the powder and pushing the powder into the mold cup; the powder conveying device comprises a base, a powder hopper and a powder feeding slider, the powder hopper is fixedly installed above the base, the bottom of the powder hopper has a powder discharge port, a powder valve whose switch is controlled by a valve driving mechanism is arranged at the powder discharge port, the powder feeding slider is slidably installed on the base, a slider driving mechanism for driving the powder feeding slider to move back and forth horizontally is installed on the base, and the powder feeding slider A powder metering cavity is vertically opened on the upper part and is aligned with the powder discharge port and communicated with the upper and lower parts. A powder metering rod that can slide and cooperate with the powder metering cavity is arranged below the powder metering cavity, and the powder metering rod is driven by the metering rod driving mechanism to move up and down; a powder arch breaking rod is vertically arranged in the powder hopper, and an arch breaking rod driving mechanism for driving the powder arch breaking rod to move up and down is fixedly installed on the powder hopper, and the lower end of the powder arch breaking rod is aligned with the powder discharge port and the powder metering cavity; the arch breaking rod driving mechanism is a powder arch breaking cylinder; A bottom plate is welded to the bottom end of the powder hopper, the bottom plate is fixedly mounted on the base, a powder discharge hole connected to the powder discharge port is vertically opened on the bottom plate, the fixed end of the valve drive mechanism is mounted above the bottom plate, the powder valve is a gate plate, the gate plate is slidably mounted between the bottom plate and the powder feeding slider, the gate plate is fixedly connected to the movable end of the valve drive mechanism, a conducting hole is opened on the gate plate, the conducting hole is connected to the powder discharge hole and the powder metering cavity when the powder is dropped, and the gate plate separates the powder discharge hole and the powder metering cavity when the powder is dropped; The substrate conveying device is arranged beside the mold cup and is used for automatically arranging and separating the substrates and pushing the substrates to the top of the mold cup; the substrate conveying device comprises a vibration plate, an inclined slide, a substrate separation mechanism and a substrate pushing mechanism, the discharge end of the vibration plate is connected to the higher end of the inclined slide, the lower end of the inclined slide is connected to the inlet of the substrate separation mechanism, and the outlet of the substrate separation mechanism is vertically opposite to the execution end of the substrate pushing mechanism; The base separation mechanism comprises a base separation seat plate, a first separation guide plate, a second separation guide plate, a separation push plate and a base separation telescopic driving mechanism, wherein the first separation guide plate and the second separation guide plate are symmetrically fixedly arranged on the base separation seat plate, a horizontal material guiding trough is formed between the first separation guide plate and the second separation guide plate, an inlet of the horizontal material guiding trough is connected with a lower end of the inclined slideway, a fixed end of the base separation telescopic driving mechanism is installed on the base separation seat plate, a telescopic direction of the base separation telescopic driving mechanism is perpendicular to the conveying direction of the inclined slideway, the separation push plate is fixedly installed on the movable end of the base separation telescopic driving mechanism, a vertical separation groove which can only accommodate one base is provided on one side of the separation push plate close to the horizontal material guiding trough, the vertical separation groove is connected with the outlet of the horizontal material guiding trough when the base separation telescopic driving mechanism is contracted, a vertical material guiding hole is provided on the base separation seat plate, and the vertical separation groove is opposite to the vertical material guiding hole up and down when the base separation telescopic driving mechanism is extended; The base pushing mechanism includes a base pushing telescopic driving mechanism and an automatic clamping jaw, wherein the fixed end of the automatic clamping jaw is installed at the movable end of the base pushing telescopic driving mechanism, and a clamping groove is arranged between two fingers of the automatic clamping jaw, and the clamping groove is opposite to the vertical material guiding hole when the base pushing telescopic driving mechanism is contracted, and the clamping groove is opposite to the mold cup when the base pushing telescopic driving mechanism is extended.

2. The automatic bidirectional cold-pressing machine for wire saw beads according to claim 1, characterized in that: The cold pressing device also includes a top plate, which is arranged above the upper template and fixed relative to the middle template. Two reset push rods for pushing the pressing plate downward are fixedly installed on the bottom surface of the top plate. Two first vertical avoidance holes for the reset push rods to pass through are provided on the upper template. The fixed end of the third telescopic driving mechanism is installed on the top surface of the top plate, and the movable end of the third telescopic driving mechanism is fixedly connected to the upper template after passing through the top plate.

3. The automatic bidirectional cold-pressing machine for wire saw beads according to claim 2, characterized in that: The cold pressing device also includes a frame, a table is provided on the top of the frame, the fixed end of the first telescopic driving mechanism is fixedly installed on the bottom surface of the table, the movable end of the first telescopic driving mechanism is fixedly connected to the first lower template after passing through the table, a plurality of columns are fixedly arranged vertically on the table, the top plate is fixedly installed between the tops of the plurality of columns, the middle template is fixedly installed between the middle parts of the plurality of columns, the upper template is slidably installed between the upper parts of the plurality of columns, the first lower template and the second lower template are both slidably installed between the lower parts of the plurality of columns, the movable end of the second telescopic driving mechanism is fixedly connected with a lifting plate, a plurality of synchronous lifting rods are respectively fixedly connected between the lifting plate and the second lower template, the table is provided with a second vertical avoidance hole for the synchronous lifting rod to pass through, and the first lower template is provided with a third vertical avoidance hole for the synchronous lifting rod to pass through.

4. The automatic bidirectional cold-pressing machine for wire saw beads according to claim 3 is characterized in that: A pressure sensor is fixedly connected between the movable end of the first telescopic driving mechanism and the first lower template. The movable end of the first telescopic driving mechanism passes through the table and is fixedly connected to the lower end of the pressure sensor. The upper end of the pressure sensor is fixedly connected to the first lower template. The lower end of the upper core rod is provided with a positioning boss for positioning the base.

5. The automatic bidirectional cold-pressing machine for wire saw beads according to claim 1, characterized in that: The first telescopic driving mechanism is a lower core rod servo electric cylinder, the second telescopic driving mechanism is a lower die punch servo electric cylinder, and the third telescopic driving mechanism is an upper die punch servo electric cylinder.

6. The automatic bidirectional cold-pressing machine for wire saw beads according to claim 1, characterized in that: The metering rod driving mechanism is a powder metering servo electric cylinder.

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