A double-end tooth bar production thread rolling machine and a method of use

Abstract

The present application relates to the field of thread rolling machine equipment technology, and discloses a double-end thread rolling machine and a using method thereof, which aims to solve the problem that in the thread rolling process of the double-end thread rolling machine, the two ends of the thread rolling machine need to be rolled with threads, and if the thread rolling position of the two ends of the thread rolling machine deviates from the thread rolling position of the two ends of the thread rolling plate during the discharging process of the thread rolling machine, the thread rolling position of the two ends of the thread rolling machine will also deviate after the thread rolling is completed, resulting in the loss of threads and the non-compliance of the quality of the double-end thread rolling machine. The present application realizes the effect that the position of the thread rolling machine will not deviate and the thread rolling position of the two ends of the thread rolling machine is aligned with the thread rolling position of the two ends of the thread rolling plate during the process of ensuring that the thread rolling machine falls between the two thread rolling plates through the mutual cooperation between the driving thread rolling assembly, the centering positioning device and the thread rolling unlocking fixing device.

Description

Technical Field

[0001] The present invention relates to the technical field of thread rolling machine equipment, in particular to a thread rolling machine for producing double-headed thread rods and a use method thereof. Background Art

[0002] A thread rolling machine is a device that places two identical rolling surfaces close together to clamp a screw blank and make a reciprocating motion to process the screw into threads. The rolling surfaces have the same tooth shape and helix angle as the screw thread. When the rolling plates move against each other, the screw blank between the two rolling plates is rolled into threads.

[0003] In the thread rolling process of double-ended tooth rods, since threads need to be rolled on both ends of the tooth rod, during the feeding process of the tooth rod, if the thread rolling positions of the two ends of the tooth rod and the two ends of the thread rolling plates are offset, then the thread positions of the two ends of the tooth rod after the thread rolling is completed will also be offset, resulting in missing threads and substandard quality of the double-ended tooth rod. Therefore, the position of the tooth rod when it falls between the two thread rolling plates is very important. There is a lack of a double-ended tooth rod thread rolling device that can ensure that the position of the tooth rod will not be offset when it falls between the two thread rolling plates, and its two ends are aligned with the thread rolling positions of the two ends of the thread rolling plates. Summary of the Invention

[0004] The object of the present invention is to provide a double-ended tooth bar production thread rolling machine and a method of use, so as to solve the problems raised in the above background technology. The lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of

[0005] Preferably, the driving tooth-rolling assembly includes a limit frame and an electric push rod, and there are two limit frames. The two limit frames are symmetrically and vertically arranged on both sides of the second tooth-rolling plate, and the side ends of the second tooth-rolling plate are slidably matched with the two second tooth-rolling plates up and down. The electric push rod is vertically arranged on the side of the hopper away from the first tooth-rolling plate and is arranged with the output end facing downward. The output end of the electric push rod is located between the two limit frames and connected to the side end of the second tooth-rolling plate.

[0006] Preferably, the centering positioning device includes a discharge table, a centering component and a linkage component, the discharge table is arranged inside the top of the second rolling plate, the top of the discharge table is inclined and the end with a lower height of the discharge table top is close to the discharge port, the discharge table is hollow, the centering component and the linkage component are arranged inside the discharge table, the centering component includes a drive motor, a drive gear, a drive tooth groove rod, a sliding frame, a drive rod and a centering rod, the drive motor is vertically arranged in the middle of the discharge table, the drive gear is horizontally arranged on the output end of the drive motor, the drive tooth groove rod is provided with two, the two drive tooth groove rods are respectively arranged on both sides of the drive gear and the two drive gear groove rods are respectively arranged on both sides of the drive gear. The toothed ends of the groove rods are meshed with the driving gears, and the sliding frames are provided with two, and the two sliding frames are arranged inside the unloading table and the side ends of each driving toothed groove rod pass through the side ends of a sliding frame to slide with it, and the driving rods are provided with two, and the top of each end of the driving toothed groove rod is vertically provided with a driving rod and the top of each driving rod passes through the top of the unloading table, and the top of the unloading table is provided with a sliding groove for the driving rod to slide horizontally, and the centering rods are provided with two, and the bottoms of the two centering rods are respectively connected to the tops of the two driving rods and the two centering rods are symmetrically arranged, and the two centering rods are arranged parallel to the top of the unloading table and are located on the side of the unloading table close to the discharge port.

[0007] The transmission gear of the second end is connected with the transmission gear of the second end in a forward direction, and the transmission gear of the second end in a forward direction is connected with the transmission gear of the second end in a forward direction. The gear train is connected with the gear train of claim 1, wherein the gear train is connected to the gear train of the second gear train and the gear train is connected to the gear train of the second gear train. The gear train is connected with the gear train of the second gear train and the gear train is connected to the gear train of the second gear train.

[0008] Preferably, the tooth bar unlocking and fixing device includes a locking assembly, a locking plate, a connecting plate, a locking block and an unlocking block, the material connecting hook is hollow, and the locking assembly is provided with two, and the two locking assemblies are symmetrically arranged at the upper and lower ends inside the material connecting hook, each of the locking assemblies includes a trapezoidal block and a matching block, the trapezoidal block is arranged in the middle of the upper end or the lower end inside the material connecting hook and slides with the top or bottom of the material connecting hook, and the matching blocks are provided with two, and the two matching blocks are symmetrically arranged on both sides of the trapezoidal block, and each of the matching blocks is provided with a matching oblique block on one side adjacent to the trapezoidal block. The locking block and the unlocking block are respectively arranged on both sides of the connecting plate and pass through the two sides of the material receiving hook, and the locking block is located in the material receiving groove on the material receiving hook.

[0009] Preferably, the top of the silo is open, and a plurality of blanking plates are equidistantly arranged inside the silo from top to bottom, each blanking plate is inclined, and two blanking plates form a group, and the upper blanking plate of the two blanking plates in each group has a higher end connected to the side end inside the silo, and a lower end not in contact with the side end of the silo, and the lower blanking plate has a higher end connected to the side end of the silo and a lower end not in contact with the side end of the silo, and its higher end is located below the lower end of the lower end of the blanking plate above it, and the lowest blanking plate is arranged at the bottom of the silo, and a blanking port is provided in the end area of ​​the bottom of the silo near the lower end of the lowest blanking plate.

[0010] Preferably, it also includes a trigger unloading device, which includes a spring, a closing plate, a first trigger block and a second trigger block. The closing plate is arranged at the unloading port at the bottom of the silo and slides with the bottom of the silo. There are several springs, and the two ends of the several springs are respectively fixedly connected to the side ends of the closing plate and the side ends of the bottom of the silo. The first trigger block is arranged at the bottom of the closing plate, and the second trigger block is arranged at the top of the second rolling plate. The ends of the first trigger block and the second trigger block adjacent to each other are provided with inclined surfaces that fit together.

[0011] Preferably, the method for using the double-ended tooth bar production thread rolling machine comprises the following steps:

[0012] S1: Batches of tooth sticks to be rolled are poured into the hopper, and through several set discharge plates, they can slide down to the discharge plate below in turn until the hopper is full. When a tooth stick falls into the second tooth rolling plate through the discharge port, the subsequent tooth sticks will move toward the discharge port in turn. In the initial state, the closing plate closes the discharge port. When the second tooth rolling plate is raised by the electric push rod and approaches the hopper, the top of the second trigger block contacts the bottom of the first trigger block, and the two inclined surfaces contact, driving the closing plate to slide away from the discharge port, thereby exposing the discharge port, and the tooth stick falls on the discharge table, which then drives the second tooth rolling plate to descend, and the second trigger block disengages from the first trigger block. Under the action of the spring, the closing plate re-closes the discharge port, and the material discharge is stopped.

[0013] S2: After the tooth bar is loaded onto the discharge table through the material bin, the second tooth plate is controlled to descend to the position where its top thread rolling corresponds to the thread rolling position at the bottom of the first tooth plate. During this process, since the top of the discharge table is tilted, the tooth bar slides toward the receiving hook. While sliding, the drive motor is controlled to drive the drive gear to rotate, thereby driving the two drive tooth groove rods to move synchronously in the opposite direction, and then driving the centering rods on both sides of the top of the discharge table to move symmetrically toward the middle of the discharge table, and then contacting both sides of the tooth bar, adjusting the position of the tooth bar to the middle of the discharge table, so that its two ends are aligned with the thread rolling positions at both ends of the second tooth plate, and because the centering rod The centering end is made of smooth material, so it does not affect the movement of the tooth rod during the centering process. During the movement of the centering rod, the first pulley rotates and under the drive of the first transmission belt, the second pulley rotates synchronously to drive the first connecting shaft to rotate, and then drives the second bevel gear engaged with the first bevel gear to rotate, and under the transmission cooperation of the third pulley, the fourth pulley, the fifth pulley, the second transmission belt and the third transmission belt, the material receiving hook is driven to synchronously flip toward the direction close to the discharge table. When the tooth rod slides to the end of the discharge table, the lower end of the material receiving trough on the material receiving hook is flush with the side end of the top of the discharge table, and the tooth rod just falls into the material receiving trough.

[0014] S3: When the tooth rod slides into the receiving groove on the receiving hook, the tooth rod pushes the locking block to drive the trapezoidal block to slide away from the tooth rod, thereby driving the matching blocks on both sides of the trapezoidal block to slide synchronously toward the opposite side, and then driving the two locking plates to move synchronously toward both sides of the tooth rod until it is clamped and fixed, and then the two centering rods are controlled to move away from each other, thereby driving the material receiving hook to flip between the first and second rolling plates. When the unlocking block flips to contact with the trigger plate, the trigger plate pushes the unlocking block toward the inside of the material receiving hook, thereby driving the trapezoidal block to slide toward the tooth rod, thereby driving the two locking plates to move away from each other, thereby releasing the fixation of the tooth rod, and then placing it between the first and second rolling plates. The second rolling plate rises, and the tooth rod contacts the thread rolling of the first and second rolling plates to roll out the thread, thereby realizing the thread rolling operation.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides that when the device is in use, the second thread rolling plate is controlled to rise close to the bottom of the material bin by driving the thread rolling assembly, and batches of tooth rods are sequentially unloaded to the centering positioning device at the top of the second thread rolling plate through the material bin, and when the thread rolling operation is being performed, the material bin does not perform the unloading operation, and then the second thread rolling plate is lowered to the position where its top thread rolling corresponds to the thread rolling position at the bottom of the first thread rolling plate. During this process, the tooth rod slides toward the material receiving hook at the top of the centering positioning device, and during the sliding process, the centering positioning device positions the tooth rod so that its two ends are aligned with the thread rolling at the two ends of the second thread rolling plate, and the linkage material receiving hook catches the tooth rod. At the moment when the tooth rod contacts the material receiving hook, the tooth rod unlocking and fixing device works to control the material receiving hook to fix the two ends of the tooth rod, and then the centering operation of the centering positioning device is released. The linked material receiving hook flips over between the first and second threading plates. During the flipping process, the tooth rod is always in a fixed state and the position does not shift. When it moves to just above the first threading plate and the second threading plate and the distance is extremely close, the tooth rod unlocking fixing device contacts the trigger plate, unlocking the fixation of the tooth rod. The moment the tooth rod falls between the first threading plate and the second threading plate, the second threading plate is controlled to rise, and the tooth rod contacts the threading of the first and second threading plates to rub out the thread, and falls on the unloading ramp to complete the unloading. Repeat the above operation to realize batch threading operation of double-headed tooth rods. This device ensures that the position of the tooth rod will not shift during the process of falling between the two threading plates, and its two ends are aligned with the threading positions at both ends of the threading plates, thereby improving the threading quality.

[0017] In the present invention, by controlling the operation of the electric push rod, the second thread rolling plate can be driven to slide up and down along the two limit frames. First, the electric push rod is used to control the second thread rolling plate to rise close to the bottom of the material bin to receive the thread rolling rod with threads, and then it is controlled to descend to the top of the thread rolling plate corresponding to the thread rolling position of the bottom of the first thread rolling plate. Then, the second thread rolling plate is controlled to rise, and the thread rolling rod contacts the thread rolling of the first and second thread rolling plates to roll out threads, thereby realizing the thread rolling operation.

[0018] In the present invention, batches of tooth sticks to be rolled are poured into the hopper, and through a number of provided discharge plates, they can slide down to the discharge plate located below in turn until the hopper is full. When a tooth stick falls into the second tooth rolling plate through the discharge port, the subsequent tooth sticks will move toward the discharge port in turn. In the initial state, the closing plate closes the discharge port. When the second tooth rolling plate is raised by the electric push rod and approaches the hopper, the top of the second trigger block contacts the bottom of the first trigger block, and the inclined surfaces of the two contact, driving the closing plate to slide away from the discharge port, thereby exposing the discharge port, and the tooth stick falls on the discharge table, which then drives the second tooth rolling plate to descend, and the second trigger block disengages from the first trigger block. Under the action of the spring, the closing plate re-closes the discharge port, and the material discharge is stopped, which is convenient for subsequent tooth rolling operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 Schematic diagram of the unfolded structure of the first rubbing plate and the second rubbing plate in the present invention;

[0021] Figure 3 It is a schematic diagram of the local structure of the present invention Figure 1 ;

[0022] Figure 4 It is a schematic diagram of the local structure of the present invention Figure 2 ;

[0023] Figure 5 Schematic diagram of the expanded structure of the material bin and the second rolling plate in the present invention;

[0024] Figure 6 It is a cross-sectional view of the silo and a schematic diagram of the expansion of the silo and the trigger discharge device in the present invention;

[0025] Figure 7 is a cross-sectional view of the second rubbing plate of the present invention;

[0026] Figure 8 Schematic diagram of the expanded structure of the centering and positioning device of the present invention;

[0027] Figure 9 The partial structure diagram of the centering and positioning device in the present invention is shown as follows: Figure 1 ;

[0028] Figure 10 The partial structure diagram of the centering and positioning device in the present invention is shown as follows: Figure 2 ;

[0029] Figure 11 It is a schematic diagram of the three-dimensional structure of the material unloading platform and the material receiving hook in the present invention;

[0030] Figure 12 This is a schematic diagram of the unfolded structure of the material receiving hook and the tooth bar unlocking and fixing device of the present invention;

[0031] Figure 13 This is a sectional top view of the unfolded structure of the material receiving hook and the tooth bar unlocking and fixing device in the present invention.

[0032] In the figure: 1, hopper; 2, first rolling plate; 3, second rolling plate; 4, unloading ramp; 5, driving rolling assembly; 51, limit frame; 52, electric push rod; 6, discharge port; 7, centering positioning device; 71, unloading table; 72, centering assembly; 721, driving motor; 722, driving gear; 723, driving tooth groove rod; 724, sliding frame; 725, driving rod; 726, centering rod; 73, linkage assembly; 731, mounting frame; 732, first pulley; 733, second pulley; 734, first transmission belt; 735, first connecting shaft; 736, first bevel gear; 7 37. Second bevel gear; 738. Second connecting shaft; 739. Third pulley; 740. Fourth pulley; 741. Fifth pulley; 742. Second transmission belt; 743. Third transmission belt; 8. Material receiving hook; 9. Tooth rod unlocking fixture; 91. Locking assembly; 911. Trapezoidal block; 912. Matching block; 92. Locking plate; 93. Connecting plate; 94. Locking block; 95. Unlocking block; 10. Trigger plate; 11. Unloading plate; 12. Unloading port; 13. Trigger unloading device; 131. Spring; 132. Closing plate; 133. First trigger block; 134. Second trigger block. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] See also Figures 1 to 13 The present invention provides a technical solution: it includes a silo 1, the silo 1 is arranged on a horizontal surface, a first rubbing plate 2 is provided on one side of the bottom of the silo 1, a second rubbing plate 3 is provided on one side of the first rubbing plate 2, and the first rubbing plate 2 and the second rubbing plate 3 are arranged in parallel, the first rubbing plate 2 and the second rubbing plate 3 are close to each other, and a plurality of rubbing threads are arranged vertically and at intervals, the bottom end of the first rubbing plate 2 is provided with a material discharge ramp 4, and the higher end of the material discharge ramp 4 is located directly below the bottom end of the first rubbing plate 2, and one side of the silo 1 is provided with a material discharge ramp 4. A driving rolling assembly 5 is provided on the side and the driving rolling assembly 5 is connected to the side end of the second rolling plate 3. The interior of the upper end of the second rolling plate 3 is hollow and open. A discharge port 6 is provided on the side of the upper end of the second rolling plate 3 close to the first rolling plate 2. A centering positioning device 7 is provided inside the upper end of the second rolling plate 3 and a material receiving hook 8 is provided at the discharge port 6 of the second rolling plate 3. A tooth rod unlocking and fixing device 9 is provided in the material receiving hook 8. A trigger plate 10 is provided on the upper part of the discharge port 6 at the side end of the second rolling plate 3 and the trigger plate 10 is located directly above the material receiving hook 8.

[0035] In this embodiment, Figure 3 As shown, the driving thread rolling assembly 5 includes a limit frame 51 and an electric push rod 52, and there are two limit frames 51. The two limit frames 51 are symmetrically and vertically arranged on both sides of the second thread rolling plate 3, and the side ends of the second thread rolling plate 3 are slidably matched with the two second thread rolling plates 3 up and down, and the electric push rod 52 is vertically arranged on the side of the hopper 1 away from the first thread rolling plate 2 and is arranged with the output end facing downward. The output end of the electric push rod 52 is located between the two limit frames 51 and is connected to the side end of the second thread rolling plate 3;

[0036] By controlling the operation of the electric push rod 52, the second thread rolling plate 3 can be driven to slide up and down along the two limit frames 51. First, the electric push rod 52 is used to control the second thread rolling plate 3 to rise close to the bottom of the hopper 1 to receive the thread rolling rod, and then it is controlled to descend to its top to roll the thread corresponding to the thread rolling position at the bottom of the first thread rolling plate 2. Then the second thread rolling plate 3 is controlled to rise, and the thread rolling rod contacts the thread rolling of the first and second thread rolling plates 2 and 3 to roll out the thread, thereby realizing the thread rolling operation.

[0037] In this embodiment, Figures 7 to 10As shown, the centering positioning device 7 includes a discharge table 71, a centering component 72 and a linkage component 73. The discharge table 71 is arranged inside the top of the second rolling plate 3. The top of the discharge table 71 is inclined and the end with a lower height of the top of the discharge table 71 is close to the discharge port 6. The discharge table 71 is hollow. The centering component 72 and the linkage component 73 are arranged inside the discharge table 71. The centering component 72 includes a drive motor 721, a drive gear 722, a drive toothed rod 723, a sliding frame 724, a drive rod 725 and a centering rod 726. The drive motor 721 is vertically arranged in the middle of the discharge table 71, and the drive gear 722 is horizontally arranged on the output end of the drive motor 721. There are two drive toothed rods 723, and the two drive toothed rods 723 are respectively arranged on both sides of the drive gear 722 and the two drive toothed rods 723 are respectively arranged on both sides of the drive gear 722. When the gears are turned, the two ends of the gear shift knob 72 are in the rotation with the help of the gears 722, and the gears 723 are in the rotation with the help of the gears 722. When the gears are turned, the gears 723 are in the rotation with the help of the gears 722. When the gears are turned, the two ends of the gear shift knob 72 are in the rotation with the help of the gears 722.

[0038] The first gear 732 of the present invention is fixed with the first drive gear 734 at the top and the second gear 735 at the bottom. Then, the second pulley 733 is horizontally arranged on the top of the first connecting shaft 735, the first transmission belt 734 is sleeved on the first pulley 732 and the second pulley 733, the first bevel gear 736 is horizontally arranged on the lower end of the first connecting shaft 735, the second bevel gear 737 is rotatably arranged on one side of the unloading platform 71 through the second connecting shaft 738, and the second bevel gear 737 is vertically arranged. The second bevel gear 737 is located on one side of the first bevel gear 736 and the two are meshed with each other. The third pulley 739 is arranged on the second connecting shaft 738, the fourth pulley 740 is arranged inside the second rolling plate 3 and is rotatably connected, the fifth pulley 741 is arranged on the rotation connection between the material receiving hook 8 and the mounting bracket 731, the second transmission belt 742 is sleeved on the third pulley 739 and the fourth pulley 740, and the third transmission belt 743 is sleeved on the fourth pulley 740 and the fifth pulley 741;

[0039] After the tooth bar passes through the material bin 1 and is loaded onto the discharge table 71, the second rolling plate 3 is controlled to descend to its top and the rolling position corresponding to the bottom rolling position of the first rolling plate 2. During this process, since the top of the discharge table 71 is inclined, the tooth bar slides toward the material receiving hook 8. At the same time, the driving motor 721 is controlled to work to drive the driving gear 722 to rotate, thereby driving the two driving toothed rods 723 to move synchronously in the opposite direction, thereby driving the centering rods 726 located on both sides of the top of the discharge table 71 to move symmetrically toward the middle of the discharge table 71, and then contact the two sides of the tooth bar, adjusting the position of the tooth bar to the center of the discharge table 71, so that its two ends are aligned with the rolling positions of the two ends of the second rolling plate 3, and since the centering end of the centering rod 726 is made of smooth material, it does not affect the movement of the tooth bar during the centering process. During the movement of the centering rod 726, the first pulley 732 rotates and When the tooth bar slid to the end of discharge platform 71, the lower end of the material receiving groove on the material receiving hook 8 is flush with the side end of the top of the discharge platform 71, and the tooth bar just falls into the material receiving groove, and the position of the tooth bar is limited by the material receiving groove, and then the two centering rods 726 are controlled to move away from each other, thereby driving the material receiving hook 8 to flip between the first rubbing plate 2 and the second rubbing plate 3, so that the tooth bar quickly discharges the material to between the first rubbing plate 2 and the second rubbing plate 3, and at the same time drives the second rubbing plate 3 to rise, thereby realizing the double-headed rubbing operation of the tooth bar.

[0040] In this embodiment, Figures 11 to 13As shown, the tooth bar unlocking and fixing device 9 includes a locking component 91, a locking plate 92, a connecting plate 93, a locking block 94 and an unlocking block 95. The material connecting hook 8 is hollow, and the locking component 91 is provided with two, and the two locking components 91 are symmetrically arranged at the upper and lower ends of the material connecting hook 8. Each of the locking components 91 includes a trapezoidal block 911 and a matching block 912. The trapezoidal block 911 is arranged in the middle of the upper end or the lower end of the material connecting hook 8 and slides with the top or bottom of the material connecting hook 8. There are two matching blocks 912, and the two matching blocks 912 are symmetrically arranged on both sides of the trapezoidal block 911. Each matching block 912 is provided with a corresponding matching block on the side adjacent to the trapezoidal block 911. The matching inclined surfaces and oblique sliding fit, the locking plates 92 are provided with two, the two locking plates 92 are symmetrically arranged on both sides of the material receiving groove on the material receiving hook 8, the upper and lower ends of each locking plate 92 are respectively connected to the side ends of the two matching blocks 912 located on the same side of the two locking components 91, and the inner side of the material receiving hook 8 is provided with a sliding groove for the matching block 912 to slide, the connecting plate 93 is arranged inside the material receiving hook 8 and the upper and lower ends of the connecting plate 93 are respectively connected to the side ends of the two trapezoidal blocks 911 in the two locking components 91, the locking block 94 and the unlocking block 95 are respectively arranged on both sides of the connecting plate 93 and respectively pass through the two sides of the material receiving hook 8, and the locking block 94 is located in the material receiving groove on the material receiving hook 8;

[0041] When the tooth bar slides into the material receiving groove on the material receiving hook 8, the tooth bar pushes the locking block 94 to drive the trapezoidal block 911 to slide in the direction away from the tooth bar, thereby driving the matching blocks 912 on both sides of the trapezoidal block 911 to slide synchronously in the direction close to the opposite side, thereby driving the two locking plates 92 to move synchronously to both sides of the tooth bar until it is clamped and fixed. When the material receiving hook 8 is turned between the first and second grinding plates 2 and 3, when the unlocking block 95 is turned to contact with the trigger plate 10, the trigger plate 10 pushes the unlocking block 95 into the inside of the material receiving hook 8, thereby driving the trapezoidal block 911 to slide in the direction close to the tooth bar, thereby driving the two locking plates 92 to move away from each other, thereby releasing the fixation of the tooth bar, and then discharging it between the first and second grinding plates 2 and 3 for grinding. This makes the tooth bar always in a fixed state during the discharging process before the grinding operation, and the two ends are aligned with the grinding positions of the two ends of the second grinding plate 3, and the position will not be offset, thereby improving the grinding quality.

[0042] In this embodiment, Figure 5 and Figure 6As shown, the top of the silo 1 is open, and a plurality of blanking plates 11 are equidistantly arranged inside the silo 1 from top to bottom, each blanking plate 11 is inclined, and two blanking plates 11 form a group, and the upper blanking plate 11 in each group has a higher end connected to the side end of the silo 1, and a lower end does not contact the side end of the silo 1, and the lower blanking plate 11 has a higher end connected to the side end of the silo 1 and a lower end does not contact the side end of the silo 1, and its higher end is located below the lower end of the blanking plate 11 above it, and the lowest blanking plate 11 is arranged at the bottom of the silo 1, and a blanking port 12 is provided in the end area of ​​the bottom of the silo 1 near the lower end of the blanking plate 11.

[0043] It also includes a trigger unloading device 13, which includes a spring 131, a closing plate 132, a first trigger block 133 and a second trigger block 134. The closing plate 132 is arranged at the unloading port 12 at the bottom of the silo 1 and slides with the bottom of the silo 1. The springs 131 are provided in plurality, and the two ends of the plurality of springs 131 are fixedly connected to the side ends of the closing plate 132 and the side ends of the bottom of the silo 1 respectively. The first trigger block 133 is provided at the bottom of the closing plate 132, and the second trigger block 134 is provided at the top of the second rolling plate 3. The adjacent ends of the first trigger block 133 and the second trigger block 134 are provided with mutually fitting inclined surfaces.

[0044] When the second tooth rolling plate 3 is lifted up by the electric push rod 52 and is close to the material bin 1, the top of the second trigger block 134 contacts the bottom of the first trigger block 133, and the inclined surfaces of the two contact, driving the closing plate 132 to slide away from the material opening 12, thereby exposing the material opening 12, and the tooth stick falls on the discharge platform 71, which then drives the second tooth rolling plate 3 to descend, and the second trigger block 134 disengages from the first trigger block 133. Under the action of the spring 131, the closing plate 132 closes the material opening 12 again, stopping the unloading, and facilitating the subsequent tooth rolling operation.

[0045] The use method and advantages of the present invention: The use method of the double-headed tooth stick production rolling machine, the working process is as follows:

[0046] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 As shown:

[0047] When the second tooth rolling plate 3 is lifted up by the electric push rod 52 and is close to the material bin 1, the top of the second trigger block 134 contacts the bottom of the first trigger block 133, and the inclined surfaces of the two contact, driving the closing plate 132 to slide away from the material opening 12, thereby exposing the material opening 12, and the tooth stick falls on the discharge table 71, which then drives the second tooth rolling plate 3 to descend, and the second trigger block 134 disengages from the first trigger block 133. Under the action of the spring 131, the closing plate 132 closes the material opening 12 again, and the material is stopped.

[0048] S2: After the tooth rod is loaded onto the discharge platform 71 through the material bin 1, the second tooth rolling plate 3 is controlled to descend to its top thread rolling position corresponding to the thread rolling position at the bottom of the first tooth rolling plate 2. During this process, since the top of the discharge platform 71 is tilted, the tooth rod slides toward the receiving hook 8. While sliding, the drive motor 721 is controlled to work and drive the drive gear 722 to rotate, thereby driving the two drive tooth groove rods 723 to move synchronously in the opposite direction, and then drive the centering rods 726 located on both sides of the top of the discharge platform 71 to move symmetrically toward the middle of the discharge platform 71, and then contact the two sides of the tooth rod, adjust the position of the tooth rod to the center of the discharge platform 71, so that its two ends are aligned with the thread rolling positions at both ends of the second tooth rolling plate 3, and since the centering end of the centering rod 726 is smooth When the tooth bar 720 is in the process of being swung to the left by the pulley 732 , the tooth bar 720 is in the process of being swung to the left by the pulley 733 .

[0049] S3: When the tooth bar slides into the material receiving groove on the material receiving hook 8, the tooth bar pushes the locking block 94 to drive the trapezoidal block 911 to slide in the direction away from the tooth bar, thereby driving the matching blocks 912 on both sides of the trapezoidal block 911 to slide synchronously in the direction close to the opposite side, thereby driving the two locking plates 92 to move synchronously to both sides of the tooth bar until it is clamped and fixed, and then the two centering rods 726 are controlled to move away from each other, thereby driving the material receiving hook 8 to flip between the first and second rubbing plates 2 and 3. When the unlocking block 95 flips to contact with the trigger plate 10, the trigger plate 10 pushes the unlocking block 95 into the inside of the material receiving hook 8, thereby driving the trapezoidal block 911 to slide in the direction close to the tooth bar, thereby driving the two locking plates 92 to move away from each other, thereby releasing the fixation of the tooth bar, and then releasing it between the first and second rubbing plates 2 and 3. The second rubbing plate 3 rises, and the tooth bar contacts the thread rolling of the first and second rubbing plates 2 and 3 to roll out the thread, thereby completing the thread rolling operation.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-ended tooth rod production rolling machine, characterized in that: The invention comprises a silo (1), wherein the silo (1) is arranged on a horizontal plane, a first rubbing plate (2) is provided on one side of the bottom of the silo (1), a second rubbing plate (3) is provided on one side of the first rubbing plate (2), and the first rubbing plate (2) and the second rubbing plate (3) are arranged in parallel, and a plurality of rubbing threads are arranged vertically and at intervals on the two ends of the side where the first rubbing plate (2) and the second rubbing plate (3) are close to each other, a material discharge ramp (4) is provided at the bottom end of the first rubbing plate (2), and a higher end of the material discharge ramp (4) is located directly below the bottom end of the first rubbing plate (2), and a driving rubbing assembly ( 5) and the driving tooth rolling assembly (5) is connected to the side end of the second tooth rolling plate (3), the interior of the upper end of the second tooth rolling plate (3) is hollow and open, a discharge port (6) is provided on the side of the upper end of the second tooth rolling plate (3) close to the first tooth rolling plate (2), a centering positioning device (7) is provided inside the upper end of the second tooth rolling plate (3), and a material receiving hook (8) is provided at the discharge port (6) of the second tooth rolling plate (3), a tooth rod unlocking and fixing device (9) is provided in the material receiving hook (8), a trigger plate (10) is provided on the upper part of the discharge port (6) at the side end of the second tooth rolling plate (3), and the trigger plate (10) is located directly above the material receiving hook (8); The centering positioning device (7) includes a discharge table (71), a centering component (72) and a linkage component (73), wherein the discharge table (71) is arranged inside the top of the second rolling plate (3), and the centering component (72) includes a driving motor (721) and a centering rod (726), wherein the driving motor (721) is vertically arranged in the middle of the discharge table (71), and two centering rods (726) are provided, and the two centering rods (726) are symmetrically arranged. The two centering rods (726) are arranged parallel to the top of the discharge table (71) and are located on the side of the discharge table (71) close to the discharge port (6). The material receiving hook (8) is provided with a semicircular material receiving groove on the side close to the discharge table (71), and the material receiving hook (8) is connected to the driving motor (721) through the linkage component (73). The motor (721) is connected to the material receiving hook (8). When the two centering rods (726) are controlled to approach each other by the driving motor (721), the material receiving hook (8) is driven to turn synchronously in the direction close to the material discharging platform (71) by cooperating with the linkage component (73). When the tooth bar slides to the end of the material discharging platform (71), the lower end of the material receiving groove on the material receiving hook (8) is flush with the side end of the top of the material discharging platform (71), and the tooth bar just falls into the material receiving groove. The position of the tooth bar is limited by the material receiving groove. When the two centering rods (726) are controlled to move away from each other by the driving motor (721), the material receiving hook (8) is driven to turn between the first rubbing tooth plate (2) and the second rubbing tooth plate (3) by cooperating with the linkage component (73), so that the tooth bar is quickly discharged between the first rubbing tooth plate (2) and the second rubbing tooth plate (3).

2. A double-ended tooth rod production thread rolling machine according to claim 1, characterized in that: The driving tooth rolling assembly (5) includes a limit frame (51) and an electric push rod (52), and the limit frames (51) are provided with two. The two limit frames (51) are symmetrically and vertically arranged on both sides of the second tooth rolling plate (3), and the side ends of the second tooth rolling plate (3) are slidably matched with the two limit frames (51) up and down. The electric push rod (52) is vertically arranged on a side of the hopper (1) away from the first tooth rolling plate (2) and is arranged with the output end facing downward. The output end of the electric push rod (52) is located between the two limit frames (51) and is connected to the side end of the second tooth rolling plate (3).

3. A double-ended tooth rod production thread rolling machine according to claim 2, characterized in that: The top of the unloading platform (71) is inclined and the lower end of the top of the unloading platform (71) is close to the discharge port (6). The unloading platform (71) is hollow. The centering component (72) and the linkage component (73) are arranged inside the unloading platform (71). The centering component (72) includes a driving gear (722), a driving toothed rod (723), a sliding frame (724) and a driving rod (725). The driving gear (722) is horizontally arranged on the output end of the driving motor (721). Two driving toothed rods (723) are provided. The two driving toothed rods (723) are respectively arranged on both sides of the driving gear (722) and the toothed grooves of the two driving toothed rods (723) are respectively arranged. The ends are engaged with the driving gear (722), two sliding frames (724) are provided, the two sliding frames (724) are both arranged inside the unloading platform (71), and the side ends of each driving toothed rod (723) respectively pass through the side ends of a sliding frame (724) and slide with it, two driving rods (725) are provided, the top end of each driving toothed rod (723) is vertically provided with a driving rod (725), and the top of each driving rod (725) passes through the top of the unloading platform (71), and the top of the unloading platform (71) is provided with a sliding groove for the driving rod (725) to slide horizontally, and the bottoms of the two centering rods (726) are respectively connected to the tops of the two driving rods (725).

4. A double-ended tooth rod production thread rolling machine according to claim 3, characterized in that: The linkage assembly (73) comprises a mounting frame (731), a first pulley (732), a second pulley (733), a first transmission belt (734), a first connecting shaft (735), a first bevel gear (736), a second bevel gear (737), a second connecting shaft (738), a third pulley (739), a fourth pulley (740), a fifth pulley (741), a second transmission belt (742) and a third transmission belt (743), wherein the mounting frame (731) is arranged on the second rolling plate (3) at the discharge port (6), the upper ends of both sides of the material receiving hook (8) are respectively rotatably connected to the two sides of the mounting frame (731), the first pulley (732) is horizontally arranged just above the driving gear (722) and fixedly connected to the center of the driving gear (722), the first connecting shaft (735) is vertically arranged on one side of the driving gear (722) and the bottom end of the first connecting shaft (735) is rotatably connected to the bottom of the material discharge table (71), the second pulley (733) is horizontally arranged on the first connecting shaft The first transmission belt (734) is mounted on the top of the connecting shaft (735), the first belt pulley (732) and the second belt pulley (733), the first bevel gear (736) is horizontally arranged at the lower end of the first connecting shaft (735), the second bevel gear (737) is rotatably arranged on one side of the unloading platform (71) through the second connecting shaft (738), and the second bevel gear (737) is vertically arranged. The second bevel gear (737) is located on one side of the first bevel gear (736) and the two are meshed with each other. The third pulley (739) is arranged on the second connecting shaft (738), the fourth pulley (740) is arranged inside the second rolling plate (3) and is rotatably connected, the fifth pulley (741) is arranged on the rotatable connection between the material receiving hook (8) and the mounting frame (731), the second transmission belt (742) is sleeved on the third pulley (739) and the fourth pulley (740), and the third transmission belt (743) is sleeved on the fourth pulley (740) and the fifth pulley (741).

5. A double-ended tooth rod production thread rolling machine according to claim 4, characterized in that: The tooth bar unlocking and fixing device (9) comprises a locking assembly (91), a locking plate (92), a connecting plate (93), a locking block (94) and an unlocking block (95); the material receiving hook (8) is hollow; two locking assemblies (91) are provided, and the two locking assemblies (91) are symmetrically arranged at the upper and lower ends inside the material receiving hook (8); each locking assembly (91) comprises a trapezoidal block (911) and a matching block (912); the trapezoidal block (911) is arranged at the middle of the upper end or the lower end inside the material receiving hook (8) and is slidably matched with the top or bottom inside the material receiving hook (8); two matching blocks (912) are provided, and the two matching blocks (912) are symmetrically arranged on both sides of the trapezoidal block (911); each matching block (912) is provided on a side adjacent to the trapezoidal block (911). The locking plates (92) are provided with two matching inclined surfaces and obliquely slidingly matched. The two locking plates (92) are symmetrically arranged on both sides of the material receiving groove on the material receiving hook (8). The upper and lower ends of each locking plate (92) are respectively connected to the side ends of the two matching blocks (912) located on the same side in the two locking components (91), and the inner side of the material receiving hook (8) is provided with a sliding groove for the matching blocks (912) to slide. The connecting plate (93) is arranged inside the material receiving hook (8) and the upper and lower ends of the connecting plate (93) are respectively connected to the side ends of the two trapezoidal blocks (911) in the two locking components (91). The locking block (94) and the unlocking block (95) are respectively arranged on both sides of the connecting plate (93) and respectively pass through both sides of the material receiving hook (8), and the locking block (94) is located in the material receiving groove on the material receiving hook (8).

6. A double-ended tooth rod production thread rolling machine according to claim 5, characterized in that: The top of the silo (1) is open, and a plurality of blanking plates (11) are equidistantly arranged inside the silo (1) from top to bottom. Each blanking plate (11) is tilted, and two blanking plates (11) form a group. The upper blanking plate (11) of the two blanking plates (11) in each group has a higher end connected to the side end of the silo (1), and a lower end does not contact the side end of the silo (1). The lower blanking plate (11) has a higher end connected to the side end of the silo (1) and a lower end does not contact the side end of the silo (1), and its higher end is located below the lower end of the blanking plate (11) above it. The lowermost blanking plate (11) is arranged at the bottom of the silo (1), and a blanking port (12) is provided at the end area of ​​the bottom of the silo (1) near the lower end of the blanking plate (11) located at the bottom.

7. A double-ended tooth rod production thread rolling machine according to claim 6, characterized in that: The invention also includes a triggering and unloading device (13), wherein the triggering and unloading device (13) includes a spring (131), a closing plate (132), a first triggering block (133) and a second triggering block (134). The closing plate (132) is arranged at the unloading port (12) at the bottom of the silo (1) and is slidably matched with the bottom of the silo (1). The springs (131) are provided in plurality, and the two ends of the plurality of springs (131) are respectively fixedly connected to the side ends of the closing plate (132) and the side ends of the bottom of the silo (1). The first triggering block (133) is arranged at the bottom of the closing plate (132), and the second triggering block (134) is arranged at the top of the second rolling plate (3). The adjacent ends of the first triggering block (133) and the second triggering block (134) are provided with mutually fitting inclined surfaces.

8. The method for using the double-ended tooth bar production thread rolling machine according to claim 7, comprising the following steps: S1: Batch of tooth sticks to be rolled are poured into the hopper (1), and through a plurality of discharge plates (11) provided, they can slide down to the discharge plate (11) located below in turn until the hopper (1) is filled. When a tooth stick falls into the second rolling plate (3) through the discharge port (12), the subsequent tooth sticks will move toward the discharge port (12) in turn. In the initial state, the closing plate (132) closes the discharge port (12). When the second rolling plate (3) rises to the position close to the hopper (1) through the electric push rod (52), the tooth sticks will move toward the discharge port (12) in turn. ), the top of the second trigger block (134) contacts the bottom of the first trigger block (133), and the inclined surfaces of the two contact each other, driving the closing plate (132) to slide away from the discharge port (12), thereby exposing the discharge port (12), and the tooth bar falls on the discharge table (71), and then drives the second tooth rolling plate (3) to descend, and the second trigger block (134) is separated from the first trigger block (133). Under the action of the spring (131), the closing plate (132) re-closes the discharge port (12), and the discharge is stopped; S2: After the tooth rod is loaded onto the discharge table (71) through the material bin (1), the second tooth plate (3) is controlled to descend to the position where the top of the tooth rod is rolled and the bottom of the first tooth plate (2) is rolled. During this process, since the top of the discharge table (71) is tilted, the tooth rod slides toward the material receiving hook (8). While sliding, the driving motor (721) is controlled to work and drive the driving gear (722) to rotate, thereby driving the two driving tooth groove rods (723) to move synchronously in the opposite direction, thereby driving the centering rods (726) located on both sides of the top of the discharge table (71) to move symmetrically toward the middle of the discharge table (71) synchronously, and then contacting both sides of the tooth rod, adjusting the position of the tooth rod to the middle of the discharge table (71) so that its two ends are aligned with the rolling positions of the two ends of the second tooth plate (3), and since the centering end of the centering rod (726) is made of a smooth material , so the movement of the tooth rod is not affected during the centering process. During the movement of the centering rod (726), the first pulley (732) rotates and under the drive of the first transmission belt (734), the second pulley (733) rotates synchronously to drive the first connecting shaft (735) to rotate, thereby driving the second bevel gear (737) meshed with the first bevel gear (736) to rotate, and under the transmission cooperation of the third pulley (739), the fourth pulley (740), the fifth pulley (741), the second transmission belt (742) and the third transmission belt (743), the material receiving hook (8) is driven to synchronously flip in the direction close to the discharge platform (71). When the tooth rod slides to the end of the discharge platform (71), the lower end of the material receiving trough on the material receiving hook (8) is flush with the side end of the top of the discharge platform (71), and the tooth rod just falls into the material receiving trough; S3: When the tooth bar slides into the receiving groove on the receiving hook (8), the tooth bar pushes the locking block (94) to drive the trapezoidal block (911) to slide away from the tooth bar, thereby driving the matching blocks (912) on both sides of the trapezoidal block (911) to slide synchronously toward the opposite side, and then driving the two locking plates (92) to move synchronously toward both sides of the tooth bar until they are clamped and fixed, and then controlling the two centering rods (726) to move away from each other, thereby driving the receiving hook (8) to move between the first tooth plate (2) and the second tooth plate (3). When the unlocking block (95) is flipped over and contacts the trigger plate (10), the trigger plate (10) pushes the unlocking block (95) toward the inside of the material receiving hook (8), thereby driving the trapezoidal block (911) to slide toward the tooth rod, thereby driving the two locking plates (92) to move away from each other, thereby releasing the fixation of the tooth rod, and then releasing the material between the first tooth rolling plate (2) and the second tooth rolling plate (3). The second tooth rolling plate (3) rises, and the tooth rod contacts the first tooth rolling plate (2) and the second tooth rolling plate (3) to roll out the thread, thereby realizing the tooth rolling operation.

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