CN107234195B - Spiral spring transverse-pressing feeding device and method and computer storage medium - Google Patents

Abstract

The utility model provides a coil spring violently presses feedway and feed method, computer storage medium, belongs to coil spring pre-compaction treatment facility technical field, and wherein, this coil spring violently presses feedway includes: the feeding device is provided with a feeding plate which can be connected with the rack in a swinging way; the lifting device is arranged in the accommodating space and comprises a workpiece supporting plate capable of swinging, and the workpiece supporting plate has three swinging position states which are respectively a horizontal state, a feeding state and a discharging state; when the workpiece supporting plate rotates to a feeding state, one end of the feeding plate is pressed downwards by the edge of the workpiece supporting plate, and the spring workpiece rolls onto the workpiece supporting plate from the feeding plate; when the workpiece supporting plate rotates to a horizontal state, the lifting device can lift the spring workpiece to be sent into the transverse pressing device or be connected out of the transverse pressing device; when the workpiece supporting plate rotates to a discharging state, the spring workpiece can be discharged from the workpiece supporting plate in a rolling mode.

Description

Spiral spring transverse-pressing feeding device and method and computer storage medium

Technical Field

The invention relates to the technical field of manufacturing of damping springs of high-speed motor train units, in particular to a spiral spring transverse-pressing feeding device, a feeding method and a computer storage medium.

Background

When a high-stress compression spring product is produced, the residual stress of the spring product needs to be eliminated by adopting pre-pressing treatment in a production process, otherwise, the spring product can have the phenomenon of size deformation after being used for a period of time, and the quality of the spring product is influenced.

The damping spring of the high-speed motor train unit has larger wire diameter and heavy weight, the pre-press has higher load, and the spring is pre-pressed by a vertical hydraulic press in the prior art. During prepressing, one or more spring workpieces are firstly carried to the platform manually, then the hydraulic press is manually operated by an operator to perform prepressing, after the prepressing is completed, the operator moves the spring workpieces down from the platform, the labor intensity of the operator is high, and the working efficiency is low.

Chinese patent application CN200910096654.8 discloses a spring prepressing machine, which consists of a workbench, a cylinder and a stop block, wherein the cylinder and the stop block are arranged on the workbench, a telescopic arm is arranged on the cylinder, a front arm is arranged at the tail end of the telescopic arm, the size and the shape of the front arm are matched with those of the spring, a stop block hole is arranged on the stop block, and the size of the stop block hole is matched with those of the spring and the front arm. Among this technical scheme, need operating personnel to overlap the spring work piece on the forearm by hand, still there is operating personnel's intensity of labour great, and work efficiency is lower, and this technical scheme can not be applicable to the pre-compaction of heavy spring and handle, especially the pre-compaction of large batch heavy spring.

Chinese patent CN201310533338.9 discloses a spring strong press, which comprises a worktable and a driving device, wherein the driving device drives a driving disc with a horizontal central shaft, a plurality of workpiece tandem rods are uniformly distributed along the radial direction of the driving disc, and a pressure head is arranged at a position corresponding to at least one workpiece tandem rod. The technical scheme of the patent has the following technical problems: 1. the device is only suitable for spring prepressing with light weight, and free-fall blanking has potential safety hazards for heavy springs such as damping springs of high-speed motor train units. 2. The spring workpiece needs to be moved by an operator and sleeved on the workpiece string rod, and the technical problem of high labor intensity of the operator still exists.

In summary, designing a pre-pressing device, a feeding method and a computer storage medium for a coil spring lateral pressing feeding device, which are suitable for pre-pressing a spring of a high-speed motor train unit, and do not require an operator to move a spring workpiece to a pre-pressing station, and have high working efficiency, is a technical problem to be solved urgently.

Disclosure of Invention

The invention provides a spiral spring transverse-pressing feeding device, a feeding method and a computer storage medium aiming at the defects of the prior art, wherein a workpiece supporting plate rotates towards a feeding plate side, the edge of the workpiece supporting plate presses down a pressing contact part of the feeding plate, and a spring workpiece rolls onto the workpiece supporting plate from the feeding plate; rotating the workpiece supporting plate to a horizontal state, lifting the spring workpiece, and feeding the spring workpiece into a transverse pressing device for prepressing; after the prepressing is finished, the workpiece supporting plate connects the spring workpiece and rotates to a discharging state, and the spring workpiece rolls down from the workpiece supporting plate; therefore, an operator does not need to move the spring workpiece to the prepressing station, and the automation degree and the working efficiency of the prepressing machine are improved.

In order to solve the above problems, an embodiment of the present invention first provides a coil spring horizontal pressing and feeding device, which is applied to a full-automatic coil spring horizontal prepressing machine, and the full-automatic coil spring horizontal prepressing machine includes: the device comprises a rack, two sides of which are respectively provided with a supporting column, and the middle of the two supporting columns is left empty to form an accommodating space; the transverse pressing device is horizontally arranged on the upper side of the rack and is connected with the supporting column; the coil spring lateral pressure feeding device comprises: the feeding device is provided with a feeding plate which can be connected with the rack in a swinging way; the lifting device is arranged in the accommodating space and comprises a workpiece supporting plate capable of swinging, and the workpiece supporting plate has three swinging position states which are respectively a horizontal state, a feeding state and a discharging state; when the workpiece supporting plate rotates to a feeding state, one edge of the workpiece supporting plate presses one end of the feeding plate downwards, and the spring workpiece rolls onto the workpiece supporting plate from the feeding plate; when the workpiece supporting plate rotates to a horizontal state, the lifting device can lift the spring workpiece to be sent into the transverse pressing device or be connected out of the transverse pressing device; when the workpiece supporting plate rotates to a discharging state, the spring workpiece can be discharged from the workpiece supporting plate in a rolling mode.

The specific implementation mode of the invention also provides a spiral spring transverse-pressing feeding method which is carried out by adopting any one of the spiral spring transverse-pressing feeding devices, and the method mainly comprises the following steps:

placing a spring workpiece on a feeding plate;

the workpiece supporting plate rotates towards the feeding plate side and is in a feeding state, the edge of the workpiece supporting plate presses the press contact part of the feeding plate downwards, and the spring workpiece rolls onto the workpiece supporting plate from the feeding plate;

the workpiece pallet rotates to a horizontal state.

Preferably, after the step of rotating the workpiece pallet to the horizontal state, the method further comprises the steps of:

a lifting driving cylinder of the lifting device pushes the workpiece supporting plate to move upwards, and the spring workpiece is lifted and sent to the transverse pressing device;

a lifting driving cylinder of the lifting device drives the workpiece supporting plate to move downwards and withdraw from the transverse pressing device, and the transverse pressing device performs prepressing on the spring workpiece;

a driving cylinder of the lifting device drives the workpiece supporting plate to move upwards, and the spring workpiece is connected out of the transverse pressing device;

the driving cylinder of the lifting device drives the workpiece supporting plate to move downwards.

The invention also provides a computer storage medium containing computer-executable instructions, and when the computer-executable instructions are processed by data processing equipment, the data processing equipment executes any one of the above-mentioned coil spring transverse-pressing feeding methods.

According to the above embodiments of the present invention, the coil spring lateral pressure feeding device, the feeding method and the computer storage medium have at least the following advantages: one end of the feeding plate is pressed downwards by one edge of the workpiece supporting plate, and the spring workpiece rolls onto the workpiece supporting plate from the feeding plate, so that automatic feeding from the feeding device to the lifting device is realized; when the workpiece supporting plate rotates to a horizontal state, the lifting device can lift the spring workpiece to be sent into the transverse pressing device or be connected out of the transverse pressing device; when the workpiece supporting plate rotates to a discharging state, the spring workpiece can be rolled and discharged from the workpiece supporting plate; according to the invention, an operator does not need to move the spring workpiece to the prepressing station, so that the automation degree and the working efficiency of the prepressing machine are improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

FIG. 1 is a perspective view of one embodiment of a full-automatic transverse pre-press for coil springs in accordance with an embodiment;

FIG. 2 is a perspective view of one embodiment of a full-automatic transverse pre-press for coil springs in accordance with an embodiment;

FIG. 3 is a right side view of one example provided by an embodiment of a full automatic lateral coil spring prepress;

FIG. 4 isbase:Sub>A cross-sectional view A-A of the embodiment of FIG. 3 provided with an embodiment ofbase:Sub>A full-automatic lateral coil spring prepress;

FIG. 5 is a front view of one example provided by an embodiment of a full-automatic lateral coil spring prepress;

FIG. 6 is a schematic structural diagram of a second piston rod of an embodiment provided in an embodiment of a full-automatic transverse pre-press for coil springs;

FIG. 7 is a cross-sectional view B-B of the embodiment shown in FIG. 5 provided with an embodiment of a full-automatic lateral coil spring prepress;

FIG. 8 is a schematic view of a mandrel structure of an embodiment provided in an embodiment of a full-automatic transverse pre-press for coil springs;

FIG. 9 is a schematic structural diagram of a first limiting unit of an embodiment of a full-automatic transverse pre-press for coil springs according to an embodiment of the invention;

FIG. 10 is a C-C cross sectional view of the embodiment shown in FIG. 5 provided with an embodiment of a full automatic lateral coil spring prepress;

11-15 are schematic diagrams illustrating the working process of the coil spring transverse-pressing feeding device according to the present invention;

FIG. 16 is a front view of a third position-limiting unit according to an embodiment of the present invention;

FIG. 17 is a right side view of the third position-limiting unit of the embodiment shown in FIG. 16 according to the embodiment of the invention;

FIG. 18 is a top view of an example provided by an embodiment of a fully automatic lateral coil spring prepress;

FIG. 19 is a flowchart illustrating an exemplary operation of an embodiment of a method for lateral preloading of a fully automatic coil spring;

FIG. 20 is a flowchart illustrating an exemplary pre-pressing process according to an embodiment of a fully automatic lateral pre-pressing method for coil springs;

fig. 21 is a schematic diagram of an electrical control principle of an embodiment provided by a specific embodiment of a full-automatic transverse pre-press for coil springs.

Fig. 22 is a schematic structural view of a workpiece supporting plate according to an embodiment of the transverse-pressing feeding device of a coil spring according to the present invention.

Description of the reference numerals

1-a transverse-pressing device is arranged,

11-main body, 111-first end cap, 112-second end cap, 113-guide bar, 1131-shoulder of shaft, 114-first movable platen, 115-second movable platen, 1141, 1151-platen central hole, 1142, 1152-guide hole, 116-nut,

12-first master cylinder, 121-first cylinder tube, 122-first piston rod, 1221-first inner bore,

13-second master cylinder, 131-second cylinder, 132-second piston rod, 1321-second bore, 1322-first rod portion, 1323-second rod portion, 1324-piston portion, 133-tail end cap,

14-first limit unit, 141-position transfer rod, 142-first limit bracket, 1421-first long groove, 143-first sensing block, 144-set screw, 145-bracket, 146-first sensor, 147-second sensor, 148-third sensor,

15-mandrel drive unit, 151-housing, 152-drive, 153-transmission assembly, 1531-first gear, 1532-second gear, 1533-transmission shaft, 1534-third gear,

16-second limit unit, 161-second limit bracket, 162-fourth sensor, 163-fifth sensor,

17-mandrel, 171-first cylindrical portion, 1711-rack portion, 1712-radial boss portion, 172-second cylindrical portion;

2-the machine frame is used for placing the machine frame,

21-support column, 22-containing space;

3-a lifting device is arranged on the frame,

31-workpiece supporting plate, 311-convex rib plate, 3111-first pin hole, 3112-second pin hole, 32-lifting outer cylinder, 33-lifting inner cylinder, 34-lifting driving cylinder, 35-swinging driving cylinder,

36-a third limiting unit, 361-a third limiting bracket, 3611-a vertical section, 3612-a transverse connecting section, 36111-a second long groove, 362-a second sensing block, 363-a sixth sensor, 364-a seventh sensor,

37-a first pin, 38-a second pin,

39-a fourth limiting unit, wherein the fourth limiting unit,

391. 391' -eighth sensor, 392-ninth sensor, 393-tenth sensor,

4-a feeding device for feeding the materials,

41-feeding plate, 411-pressing contact surface, 412-arc concave surface, 43-reset tension spring and 44-cushion block;

5-a feeding platform, wherein the feeding platform,

50-centering means, 51-platform panel, 511-first groove, 512-second groove,

52-a first pair of middle plates, 53-a second pair of middle plates, 54-a first screw rod, 55-a second screw rod, 56-a first chain wheel, 57-a second chain wheel, 58-a first chain and 59-a lug;

6-a discharging platform;

7-a synchronization unit for synchronizing the data,

71-third sprocket, 72-second chain;

8. 8a, 8 b-spring work piece;

9-a controller.

Detailed Description

Other objects and advantages of the present invention will become apparent by the following explanation of the preferred embodiments of the present application.

As shown in fig. 1, the full-automatic horizontal pre-pressing machine for helical springs mainly comprises a horizontal pressing device 1, a frame 2, a lifting device 3, a feeding device 4, a feeding platform 5 and a discharging platform 6; the reference directions of up, down, front, back, left and right are marked on the lower right side in fig. 1 in the form of coordinate axes, and the following description of the directions of the drawings is the same as the direction marked on fig. 1, wherein, the frame 2 is arranged on the lower side of the transverse pressing device 1 for supporting the transverse pressing device 1, two supporting columns 21 are respectively arranged on two sides of the frame 2, a space is left between the two supporting columns 21 to form an accommodating space 21, and the lifting device 3 is arranged in the accommodating space 21. The feeding platform 5 is arranged at the rear side of the frame 2, and the discharging platform 6 is arranged at the front side of the frame 2.

As shown in fig. 2, a feeding device 4 is provided between the feeding platform 5 and the lifting device 3, and the feeding device 4 is used for supplying the spring workpiece 8 to the lifting device 3.

As shown in fig. 1 to 3, a working process of the full-automatic horizontal pre-press for coil springs is generally that spring workpieces 8 (hereinafter referred to as workpieces 8) to be pre-pressed are arranged on a feeding platform 5, the workpieces 8 are rolled into a feeding device 4, the feeding device 4 feeds the workpieces 8 into a lifting device 3, the lifting device 3 lifts the workpieces 8 and feeds the workpieces 8 into a horizontal pressing device 1, a mandrel 17 penetrates through an inner hole of the workpieces 8, the lifting device 3 exits the horizontal pressing device 1 downwards, the workpieces fall on the mandrel 17, the horizontal pressing device 1 pre-presses the workpieces 8 for multiple times, and the lifting device 3 inscribes the workpieces 8 from the horizontal pressing device 1 and then feeds the workpieces 8 onto a discharging platform 6 to complete pre-pressing.

The detailed construction and operation of the various components are described in detail below.

As shown in fig. 1, the lateral pressing device 1 includes a main body 11, a first main hydraulic cylinder 12 and a second main hydraulic cylinder 13 symmetrically disposed on two sides of the main body 11, a first limiting unit 14, a mandrel driving unit 15, a second limiting unit 16, and a mandrel 17, wherein the first main hydraulic cylinder 12 and the second main hydraulic cylinder 13 are horizontally disposed opposite to each other, that is, piston rods of the first main hydraulic cylinder 12 and the second main hydraulic cylinder 13 can both extend toward the center of the lateral pressing device 1 for prepressing the workpiece 8.

As shown in fig. 3 and 4, the main body 11 includes a first end cap 111 and a second end cap 112, the first end cap 111 and the second end cap 112 have a square disk shape, and four corners of the first end cap 111 and the second end cap 112 each have a flange hole. The first end cap 111 and the second end cap 112 are connected by four guide bars 113. The diameters of the two end portions of the guide bar 113 are smaller than the diameter of the middle portion to form a shaft shoulder portion 1131, the smaller diameter portions of the two end portions penetrate into the flange holes of the first end cover 111 and the second end cover 112, the two shaft shoulder portions 1131 respectively abut against the end surfaces of the first end cover 111 and the second end cover 112, the two ends of the guide bar 113 are respectively connected with a nut 116, and the first end cover 111 and the second end cover 112 are fixed.

As shown in fig. 1 and 4, the main body 11 further includes a first movable pressing plate 114 and a second movable pressing plate 115, the first movable pressing plate 114 and the second movable pressing plate 115 are also in a shape of a square disk, the centers of the first movable pressing plate 114 and the second movable pressing plate 115 are respectively provided with pressing plate center holes 1141 and 1151, four corner positions of the first movable pressing plate 114 and the second movable pressing plate 115 are respectively provided with four guide holes 1142 and 1152, and the guide holes 1142 and 1152 are horizontally slidably connected with the guide bar 113.

The first and second movable pressing plates 114, 115 can support and guide the first and second piston rods 122, 132 of the first and second master cylinders 12, 13, that is, when the workpiece 8 is pre-pressed, if the workpiece 8 deviates from the central axis of the first and second piston rods 122, 132, the first and second piston rods 122, 132 will be subjected to a moment of deflection, which is unfavorable for the piston rod sealing of the first and second piston rods 122, 132, while the first and second movable pressing plates 114, 115 and the guide bar 113 can be horizontally slidably connected, which can balance the above-mentioned moment of deflection, and can protect the piston rod sealing, and prolong the service life of the piston rod sealing.

As shown in fig. 4, a first master cylinder 12 is provided at the left end of the main body 11, and a second master cylinder 13 is provided at the right end of the main body 11, wherein the first master cylinder 12 and the second master cylinder 13 are symmetrically provided.

The first master cylinder 12 includes a first cylinder 121 and a first piston rod 122 disposed in the first cylinder 121, the right end of the first cylinder 121 is connected to the left end flange of the first end cap 111, and the center of the first piston rod 122 has an axial first inner hole 1221.

The second master cylinder 13 includes a second cylinder 131 and a second piston rod 132 disposed in the second cylinder 131, the left end of the second cylinder 131 is connected to the right flange of the second end cap 112, and the center of the second piston rod 132 has an axial second inner hole 1321.

The first piston rod 122 and the second piston rod 132 have substantially the same structure, and the structure of the second piston rod 132 will be described below by way of example, and as shown in fig. 6, the second piston rod 132 has a piston portion 1324 in the middle, a first rod portion 1322 on the left side of the piston portion 1324, and a second rod portion 1323 on the right side of the piston portion 1324, wherein the first rod portion 1322, the second rod portion 1323, and the piston portion 1324 are coaxially disposed, and the first rod portion 1322 and the second rod portion 1323 may have the same or different diameters, lengths, and other dimensions. The right end of the second cylinder 131 is provided with a tail end cover 133, and the second rod 1323 is hermetically connected with the tail end cover 133, and penetrates out of the hole of the tail end cover 133 to extend outwards by a section.

As shown in fig. 4 and 6, the first rod 1322 faces the inner side of the cross press device 1, and is flange-connected to the first and second movable press plates 114 and 115; the second rod portion 1323 faces the outside of the lateral pressing device 1 and is connected to the housing 151 of the mandrel drive unit 15.

As shown in fig. 4, the right end of the second piston rod 132 is connected to the mandrel driving unit 15, the mandrel 17 is disposed in the second inner hole 1321 of the second piston rod 132, and the mandrel driving unit 15 can drive the mandrel 17 to linearly reciprocate along the second inner hole 1321.

Fig. 7 shows a specific structure of an embodiment of the mandrel driving unit 15, wherein the mandrel driving unit 15 includes a housing 151, the housing 151 is connected to a right flange of the second piston rod 132, a driving member 152 is disposed at a bottom of the housing 151, and the driving member 152 is in transmission connection with the mandrel 171 through a transmission assembly 153. Fig. 7 shows a preferred structure of the transmission assembly 153 according to an embodiment, the transmission assembly 153 includes a first gear 1531, a second gear 1532, a transmission shaft 1533 and a third gear 1534, specifically, the first gear 1531 is connected to an output shaft of the driving member 152, the first gear 1531 is engaged with the second gear 1532, the second gear 1532 is driven by the transmission shaft 1533 to the third gear 1534, the third gear 1534 is connected to the spindle 17, and two ends of the transmission shaft 1533 are respectively connected to the bearings of the housing 151.

It should be noted that the driving member 152 may be a hydraulic motor or a servo motor. In addition, the number of teeth of the first gear 1531 and the third gear 1534 is less than that of the second gear 1532, so that the transmission assembly 153 can perform the speed reduction function.

The concrete structure of an embodiment of the mandrel 17 is shown in fig. 8, wherein the mandrel 17 comprises a first cylindrical portion 171 and a second cylindrical portion 172 which is provided at the left end of the first cylindrical portion 171 and coaxially connected to the first cylindrical portion 171. A rack portion 1711 is axially arranged on the lower side of the outer cylindrical surface of the first cylindrical portion 171, a radial protrusion portion 1712 with a diameter larger than that of the first cylindrical portion 171 is arranged at the right end of the first cylindrical portion 171, the first cylindrical portion 171 and the second inner hole 1321 are linearly slidably connected, and the rack portion 1711 is engaged with a third gear 1534 of the spindle driving unit 15. The diameter of the second cylindrical portion 172 is smaller than that of the first cylindrical portion 171, so as to penetrate into the inner hole of the workpiece 8, supporting the workpiece 8 in a horizontal state.

As shown in fig. 4, the driving member 152 drives the spindle 17 to linearly reciprocate along the second inner bore 1321 of the second piston rod 132 through the transmission assembly 153. The second cylindrical portion 172 of the mandrel 17 may pass through the platen central hole 1151, the platen central hole 1141, and the first inner bore 1221 of the first piston rod 122 from right to left in that order.

During the pre-pressing process, the platen central hole 1141 of the first movable platen 114 and the first inner hole 1221 of the first piston rod 122 provide a receiving space for the second cylindrical portion 172 of the mandrel 17.

As shown in fig. 5, in order to enable the first and second covers 111 and 112 to move inward/outward in synchronization, the present invention further provides an embodiment of the synchronization unit 7, wherein the synchronization unit 7 includes a third sprocket 71 and a second chain 72, wherein the third sprocket 171 is pivotally connected to the first cover 111, the second chain 72 is wound around the third sprocket 71, and one end of the second chain 72 is connected to the first movable pressing plate 114 and the other end is connected to the second movable pressing plate 115.

As shown in fig. 5, when the first piston rod 122 of the first master cylinder 12 pushes the first movable platen 114 to move toward the center of the cross press apparatus 1, the first movable platen 114 pulls the second chain 72, the second chain 72 changes its direction on the third sprocket 71, and the second movable platen 115 is pulled to move toward the center of the cross press apparatus 1 simultaneously. Similarly, when the second piston rod 132 of the second master cylinder 13 pulls the second end cap 112 to move rightward, the second chain 72 may pull the first movable pressing plate 114 to move leftward.

Synchronization unit 7 may serve to correct the synchronicity of the telescopic movements of first piston rod 122 and second piston rod 132.

As a further preferred embodiment, two sets of the synchronizing units 7 are symmetrically arranged on the front and rear sides of the main body 11, which is beneficial to the uniform stress inside the transverse pressing device 1. The above-described synchronization unit 7 is low in manufacturing cost, and the first movable platen 114 and the second movable platen 115 are well synchronized.

In addition, the synchronizing unit 7 may also be a hydraulic synchronizing valve, and the synchronizing valve is respectively communicated with the oil inlet and the oil outlet of the first main hydraulic cylinder 12 and the second main hydraulic cylinder 13, but the cost of the solution is high.

In order to control the coordination of the movement of each part, the invention also comprises a controller 9, and the controller 9 can be a PLC, an industrial personal computer and the like. The model of the PLC has various choices, such as Siemens S7-300 and S7-400; the industrial personal computer can be selected from the original IPC-610L and the like.

As shown in fig. 21, the controller 9 is connected to a first sensor 146, a second sensor 147, a third sensor 148, a fourth sensor 162, a fifth sensor 163, a sixth sensor 363, a seventh sensor 364, an eighth sensor 391, a ninth sensor 392, and a tenth sensor 393, respectively.

As shown in fig. 21, the controller 9 is connected to the first master cylinder 12, the second master cylinder 13, the lift drive cylinder 34, and the swing drive cylinder 35 through a hydraulic system. In addition, when the driving member 152 is a hydraulic motor, the controller 9 is connected to the hydraulic motor through a hydraulic system; when the driving member 152 is a servo motor, the controller 9 can be directly connected to the servo motor to control the moving direction and position of the mandrel 17 by controlling the rotating direction and number of rotations of the servo motor.

As shown in fig. 1, 5 and 9, in order to facilitate control of the inward and outward limit positions of the first and second movable pressing plates 114 and 115, the present invention further provides the first limit unit 14 of an embodiment, and specifically, the first limit unit 14 includes a position transmission rod 141 and a first limit bracket 142. As shown in fig. 5, the left end of the position transmission rod 141 is connected to the second movable platen 115 by a screw, and when the second movable platen 115 reciprocates left and right, the position transmission rod 141 moves left and right along with the second movable platen 115. Preferably, the second cover 112 is provided with a bracket 145, and the bracket 145 is used for supporting the position transmission rod 141, so that the position transmission rod 141 is always kept in a horizontal state when the position transmission rod 141 moves left and right. As shown in fig. 5, the left end of the first limiting bracket 142 is connected to the second end cap 112 through a screw, the first limiting bracket 142 is provided with a first long groove 1421, the first sensor 146, the second sensor 147 and the third sensor 148 all pass through the first long groove 1421, the external threads of the first sensor 146, the second sensor 147 and the third sensor 148 are respectively provided with two nuts, the first sensor 146, the second sensor 147 and the third sensor 148 can be respectively fixed on the first limiting bracket 142 through the two nuts, and the positions of the first sensor 146, the second sensor 147 and the third sensor 148 can be adjusted along the first long groove 1421 according to the pre-pressing requirements of workpieces 8 with different lengths.

As shown in fig. 9, the first, second, and third sensors 146, 147, 148 have different functions, and the first sensor 146 is used to indicate the left limit position of the second movable platen 115; the third sensor 148 is used to indicate the right limit position of the second movable platen 115, and the second sensor 147 is located between the first sensor 146 and the third sensor 148, and adjusts the position according to the length of the workpiece 8, indicating the position at which the second movable platen 115 presses the workpiece 8.

Specifically, as shown in fig. 5 and 9, when the second movable pressing plate 115 moves towards the center of the lateral pressing device 1, the position transmission rod 141 moves leftward along with the second movable pressing plate 115, the first sensing block 143 on the position transmission rod 141 also moves leftward, when the second sensor 147 detects the first sensing block 143, a signal is sent to the controller 9, the controller 9 controls the piston rods of the first master cylinder 12 and the second master cylinder 13 to stop moving through the hydraulic system, and after keeping for several seconds, the controller 9 controls the piston rods of the first master cylinder 12 and the second master cylinder 13 to retract through the hydraulic system, thereby driving the second movable pressing plate 115 to move rightward.

If the second sensor 147 fails, the second movable pressing plate 115 continues to move leftwards, the first sensor 146 can detect the first sensing block 143, the first sensor 146 sends a signal to the controller 9, and the controller 9 controls the first master cylinder 12 and the second master cylinder 13 to stop moving or move rightwards through a hydraulic system and also controls an alarm device to give an alarm.

In addition, a pressure sensor (not shown in the figure) may be further provided in the hydraulic system, the pressure sensor is configured to detect a pressure in the oil supply line of the first master cylinder 12 and/or the second master cylinder 13, if the pressure in the oil supply line detected by the pressure sensor suddenly rises, the workpiece 8 is pressed and a pressure-on signal may be sent to the controller 9, and the controller 9 delays for several seconds and then controls the piston rods of the first master cylinder 12 and the second master cylinder 13 to retract, so as to drive the second movable pressure plate 115 to move rightward.

When the third sensor 148 detects the first sensing block 143 during the process that the second movable pressure plate 115 moves to the right, the third sensor 148 sends a signal to the controller 9, and the controller 9 controls the piston rods of the first master cylinder 12 and the second master cylinder 13 to return or stop through a hydraulic system.

It should be noted that the position transmission rod 141 can also be disposed on the first movable pressing plate 114, in this case, the first limiting bracket 142 is also correspondingly disposed on the first end cap 111, and the position and the connection relationship are symmetrical to those when the position transmission rod 141 is disposed on the second movable pressing plate 115.

As a preferred embodiment, as shown in fig. 9, the position transmission rod 141 is further provided with a first sensing block 143 with an adjustable left-right position, specifically, the first sensing block 143 is provided with a through hole, the position transmission rod 141 passes through the through hole, a set screw 144 is provided at a lower side of the first sensing block 143, and a front end surface of the set screw 144 abuts against the position transmission rod 141. When the set screw 144 is loosened, the position of the first sensing piece 143 can be adjusted along the position transmission rod 141, and after the adjustment is completed, the relative position between the position transmission rod 141 and the first sensing piece 143 can be fixed by tightening the set screw 144. The relative position of the first sensing block 143 with respect to the position transmission rod 141 can also be adjusted to meet the pre-pressing requirements of workpieces 8 with different specifications (mainly the length of the spring workpiece).

As shown in fig. 5, in order to control the left and right limit positions of the mandrel 17, the second limit unit 16 is further provided in the present embodiment, the second limit unit 16 includes a second limit bracket 161, a fourth sensor 162 and a fifth sensor 163, the left end of the second limit bracket 161 is connected to the housing 151 of the mandrel driving unit 15, and the fourth sensor 162 and the fifth sensor 163 are fixed to the second limit bracket 161 at a certain distance. The fourth sensor 162 and the fifth sensor 163 are preferably proximity sensors that detect the position of the spindle 17 by detecting a radial protrusion 1712 at the end of the spindle 17. In the solution shown in fig. 5, when the fourth sensor 162 detects the radial projection 1712, the spindle 17 is in the left extreme position; when the fifth sensor 163 detects the radial boss 1712, the spindle 17 is located at the right limit position.

As shown in fig. 10 and 11, the present embodiment further provides a lifting device 3 of a preferred structure, the lifting device 3 includes a workpiece supporting plate 31, a lifting outer cylinder 32 and a lifting inner cylinder 33, wherein the bottom of the lifting outer cylinder 32 is connected to the frame 2, the lifting inner cylinder 33 is connected to the lifting outer cylinder 32 in a vertically slidable manner, the middle part of the top of the lifting inner cylinder 33 protrudes upward and is connected to the workpiece supporting plate 31 via a first pin 37, and the workpiece supporting plate 31 can swing within a certain angle range on a plane perpendicular to the central axis of the first pin 37.

As shown in fig. 22, the workpiece supporting plate 31 with a preferred structure has two protruding rib plates 311 at the bottom of the workpiece supporting plate 31, the two protruding rib plates 311 are provided with a first pin hole 3111 and a second pin hole 3112, wherein the first pin hole 3111 is located at the center of the workpiece supporting plate 31 in the front-back direction, the second pin hole 3112 is located at the near edge of the workpiece supporting plate 31, a first pin shaft 37 and a second pin shaft 38 are provided on the two protruding rib plates 311, the first pin shaft 37 is pivotally connected to the first pin hole 311, and the second pin shaft 38 is pivotally connected to the second pin hole 312. The raised rib plate 311 not only can improve the strength and rigidity of the workpiece supporting plate 31, but also can be connected with the first pin 37 and the second pin 38.

Preferably, the workpiece pallet 31 is V-shaped, and the upper surface of the workpiece pallet 31 may also be concave arc-shaped.

The width of the workpiece pallet 31 in the front-rear direction is smaller than the minimum distance between the outer contours of the two guide bars 113 on the lower side of the cross press device 1, so that the workpiece pallet 31 can enter the cross press device 1 when being lifted.

The lifting driving cylinder 34 provides power for the up-and-down lifting of the workpiece supporting plate 31, and the swinging driving cylinder 35 provides power for the swinging of the workpiece supporting plate. Wherein, the lifting driving cylinder 34 is arranged in the lifting inner cylinder 33, the lower end of the cylinder of the lifting driving cylinder 34 is pivotally connected with the frame 2 or the lifting outer cylinder 32, and the top end of the piston rod of the lifting driving cylinder 34 is rotatably connected with the first pin shaft 37; the swing cylinder 35 is also provided inside the inner vertical cylinder 33, the bottom of the swing cylinder 35 is pivotally connected to the inner vertical cylinder 33, and the top of the piston rod of the swing cylinder 35 is connected to the bottom of the workpiece pallet 31 on the side near the edge thereof by a second pin 38.

The piston of the lifting driving cylinder 34 has two positions, an upper limit position and a lower limit position, as shown in fig. 10, 16 and 17, the top end of the lifting inner cylinder 33 is connected with a third limit bracket 361, the third limit bracket 361 has a vertical section 3611 and a horizontal connecting section 3612 connected with the lifting inner cylinder 33, and a second long groove 36111 is arranged on the vertical section 3611. The second long groove 36111 is provided with a second sensing block 362, and the second sensing block 362 and the second long groove 36111 can be connected through a bolt and a nut, so that the height position of the second sensing block 362 can be conveniently adjusted. The present embodiment further includes a sixth sensor 363 and a seventh sensor 364, both preferably proximity sensors, connected to the frame 2, wherein the sixth sensor 363 is used for detecting the transverse connecting section 3612, and the seventh sensor 364 is used for detecting the second sensing block 362.

The piston rod of the swing actuating cylinder 35 has three states: an extended state, an intermediate state, and a retracted state. When the piston rod of the swing driving cylinder 35 is in the middle state, the workpiece supporting plate 31 is in a horizontal state; when the piston rod of the swing driving cylinder 35 is in a retraction state, the workpiece supporting plate 31 inclines to the feeding device 4 side and is in a feeding state; when the piston rod of the swing driving cylinder 35 is in the extended state, the workpiece pallet 31 is inclined toward the discharging platform 6 side and is in the discharging state.

As shown in fig. 10 and fig. 11, this embodiment may further include a feeding device 4 of a preferred structure, the feeding device 4 is located between the feeding platform 5 and the lifting device 3, the feeding device 4 includes a feeding plate 41, an upper side of the feeding plate 41 has an arc concave surface 412, a side of the arc concave surface 412 facing the lifting device 3 is provided with an upward inclined press contact surface 411, a lower side of the feeding plate 41 is pivotally connected to the frame 2, a side of the feeding plate 42 close to the feeding platform 5 is further provided with a return tension spring 43, one end of the return tension spring 43 is connected to the feeding plate 42 (i.e. the opposite side of the press contact surface 411), and the other end is connected to the frame 2; a return tension spring 43 is located on the underside of the feed plate 42.

As shown in fig. 10, a spacer 44 is further provided at an end of the lower side of the feeding plate 41 close to the return tension spring 43, the spacer 44 is connected to the frame 2, and when the workpiece pallet 31 does not contact the press-contact surface 411, the spacer 44 supports the feeding plate 41 in a horizontal state.

As a preferred embodiment, as shown in fig. 21, the device further includes a fourth limiting unit 39, and the fourth limiting unit 39 includes an eighth sensor 391, a ninth sensor 392 and a tenth sensor 393.

The principle of the cooperative operation of the lifting device 3 and the feeding device 4 is shown in fig. 11 to 15, and the operation thereof will be described in detail below.

As shown in FIG. 11, the workpiece 8a is placed on the curved concave surface 412 of the feeding plate 41, and the piston rod of the elevation drive cylinder 34 is retracted downward.

As shown in fig. 12, the piston rod of the elevation drive cylinder 34 is retracted to the lower limit position (the edge of the workpiece pallet 31 is in contact with the press-contact surface 411 of the feeding plate 41, or is located above and close to the press-contact surface 411), and the piston rod of the elevation drive cylinder 34 stops moving, and at this time, the workpiece pallet 31 is in a horizontal state; a ninth sensor 392 is connected to the frame 2 for detecting the aforementioned workpiece pallet 31 in a horizontal state (the position of the ninth sensor 392 is also shown in fig. 5, which is located on the right side of the workpiece pallet 31). When the ninth sensor 392 detects the workpiece pallet 31, the ninth sensor 392 transmits a signal that the workpiece pallet 31 is in a horizontal state to the controller 9.

As shown in fig. 13, the piston rod 35 of the swing driving cylinder 35 retracts to drive the workpiece pallet 31 to rotate, the edge of the workpiece pallet 31 contacts the press contact surface 411 and presses one side of the feeding plate 41 to rotate, meanwhile, the other side of the feeding plate 41 tilts upward to elongate the return tension spring 43, the feeding plate 41 tilts toward the workpiece pallet 31, the workpiece pallet 31 is in a feeding state, and the workpiece 8a rolls from the feeding plate 41 onto the workpiece pallet 31. An eighth sensor 391 is connected to the frame 2 for indicating the workpiece pallet 31 to rotate to the extreme position toward the feeding plate 41, the eighth sensor 391 may be disposed below the feeding plate 41, when the feeding plate 41 is pressed down by the workpiece pallet 31, the eighth sensor 391 may detect the feeding plate 41 and send a signal to the controller 9, and the controller 9 receives the signal and controls the piston rod of the swing hydraulic cylinder 35 to stop moving through the hydraulic system. Further, the eighth sensor 391' may be provided below the end of the workpiece pallet 31 near the feeding plate 41, and the above-described function may be realized by detecting the position of the workpiece pallet 31.

As shown in fig. 14, the piston rod of the swing cylinder 35 is in the neutral state, and the workpiece pallet 31 is in the horizontal state. The piston rod of the lift driving cylinder 34 extends upward to drive the workpiece pallet 31 to move upward, and the workpiece 8a is lifted into the cross press 1 for preloading. At the same time, the feeding plate 41 rotates back to the horizontal state by the elastic force of the return tension spring 43.

As shown in fig. 4, in the cross press device 1, first, the mandrel driving unit 15 drives the mandrel 17 to extend toward the inside of the cross press device 1, the second cylindrical portion 172 of the mandrel 17 passes through the inner hole of the workpiece 8a, then, the piston rod of the elevation driving cylinder 34 is retracted, the workpiece pallet 31 is withdrawn from the cross press device 1, and the workpiece 8a stays in the cross press device 1 by the supporting action of the second cylindrical portion 172. The first piston rods 122 of the first master cylinder 12 push the first movable platen 114 to move toward the middle, and at the same time, the second piston rods 132 of the second master cylinder 13 also push the second movable platen 115 to move toward the middle. The first movable pressing plate 114 and the second movable pressing plate 115 pre-press the workpiece 8a, and after the workpiece 8a is pressed and kept for a plurality of seconds, the first master hydraulic cylinder 12 and the second master hydraulic cylinder 13 respectively drive the first movable pressing plate 114 and the second movable pressing plate 115 to move outwards, so that one-time pre-pressing is completed.

According to the requirement of the spring preloading process, after several times of preloading, when the first and second movable pressing plates 114, 115 are located at the outer sides, as shown in fig. 14, the lifting driving cylinder 34 drives the workpiece supporting plate 31 to move upwards to support the workpiece 8a for a certain distance, the workpiece 8a is not in contact with the mandrel 17, the mandrel driving unit 15 drives the mandrel 17 to withdraw outwards, and the lifting driving cylinder 34 drives the workpiece supporting plate 31 to move downwards to the lower side limit position.

As shown in fig. 15, the piston rod of the swing driving cylinder 35 extends out to push the workpiece supporting plate 31 to incline toward the discharging platform 6, so as to be in a discharging state, the workpiece 8a rolls onto the discharging platform to complete pre-pressing, the workpiece 8b is placed on the feeding plate 41, and the transverse pre-press enters the work flow of pre-pressing the workpiece 8 b.

Fig. 15 also shows the position of a tenth sensor 393, which sensor 393 may be connected to the lifting inner cylinder 33 or to the frame 2, the tenth sensor 393 is used to detect whether the workpiece pallet 31 has moved to the outfeed state described in the previous paragraph, and when the tenth sensor 393 detects the workpiece pallet 31, a signal is sent to the controller 9 that the workpiece pallet is in the outfeed state, and the controller 9 controls the swing cylinder 35 to stop or reverse by means of the hydraulic system.

Furthermore, instead of providing the tenth sensor 393, the controller 9 may control the piston rod of the swing cylinder 35 to extend for several seconds and then stop, in principle, by controlling the hydraulic oil supply of the hydraulic system to the swing cylinder 35 to control the position of the workpiece pallet 31.

As a preferred embodiment, as shown in fig. 18, the feeding platform 5 further includes a centering device 50, and a preferred technical solution of the centering device 50 is that a first groove 511 and a second groove 512 are arranged in parallel on a platform panel 51 of the feeding platform 5, wherein a first lead screw 54 is arranged in the first groove 511, and a second lead screw 55 is arranged in the second groove 512; the first lead screw 54 and the second lead screw 55 are both divided from the middle: one half is left-handed and the other half is right-handed. As shown in fig. 10, the first and second pairs of middle plates 52 and 53 have projections 59 on their lower sides, which are fitted into the first and second grooves 511 and 512 and engaged with the first and second lead screws 54 and 55.

As shown in fig. 18, a first sprocket 56 is provided at an end of the first lead screw 54, a second sprocket 57 is provided at an end of the second lead screw 55, and the first sprocket 56 and the second sprocket 57 are drivingly connected by a first chain 58. When the first lead screw 54 is rotated, the second lead screw 55 rotates synchronously in the same direction, so as to drive the first middle plate pair 52 and the second middle plate pair 53 to move synchronously towards the inner side or the outer side of the feeding platform 5, thereby aligning the length center planes of workpieces 8 with different lengths with the center plane of the transverse pressing device 1.

As shown in fig. 19, a full-automatic lateral preloading method for a coil spring mainly comprises the following steps:

s1, the lifting device 3 moves upwards from an initial position to lift the spring workpiece 8 into the transverse pressing device 1;

s2, the mandrel 17 penetrates through an inner hole of the spring workpiece 8;

s3, the lifting device 3 moves downwards to withdraw from the transverse pressing device 1, and the spring workpiece 8 falls on the mandrel 17;

s4, pre-pressing the spring workpiece 8 by the transverse pressing device 1;

s5, the lifting device 3 moves upwards to lift the spring workpiece 8 for a certain distance;

s6, the mandrel 17 is withdrawn from the inner hole of the spring workpiece 8;

and S7, the lifting device 3 receives the spring workpiece 8 and moves downwards to the initial position.

As a preferred embodiment, as shown in fig. 20, the step of performing the pre-pressing process on the spring workpiece 8 by the transverse pressing device 1 specifically includes:

s41, extending piston rods of the first main hydraulic cylinder 12 and the second main hydraulic cylinder 13 to press the spring workpiece 8;

s42, keeping the pressure state for 3 seconds, and of course, adjusting the length of the keeping time according to the requirement of the pre-pressing process, such as 1 second, 2 seconds, 5 seconds, 6 seconds, 8 seconds, 10 seconds and the like;

s43, the piston rods of the first master cylinder 12 and the second master cylinder 13 are retracted.

As a preferred embodiment, the following steps S41 to S43 are repeatedly performed a plurality of times, taking three times of pressing as an example, specifically,

piston rods of the first master cylinder 12 and the second master cylinder 13 extend for the first time, and the spring workpiece 8 is pressed for the first time;

hold the pressed state for a first time, e.g., 3 seconds;

the piston rods of the first master cylinder 12 and the second master cylinder 13 are retracted to be separated from the spring workpiece 8, and the piston rods do not need to be fully retracted;

the piston rods of the first master cylinder 12 and the second master cylinder 13 extend for the second time, and the spring workpiece 8 is pressed for the second time;

hold the pressed state for a first time, e.g., 3 seconds;

the piston rods of the first master cylinder 12 and the second master cylinder 13 are retracted to be separated from the spring workpiece 8, and still do not need to be fully retracted;

the piston rods of the first main hydraulic cylinder 12 and the second main hydraulic cylinder 13 extend for the third time, and the spring workpiece 8 is pressed for the third time;

hold the pressed state for a first time, e.g., 3 seconds;

the piston rods of the first master cylinder 12 and the second master cylinder 13 are fully retracted, and the pre-pressing process cycle is ended.

The embodiments of the invention described above may be implemented in various hardware, software code, or combinations of both. For example, an embodiment of the present invention may also be program code for executing the above method in a Digital Signal Processor (DSP). The invention may also relate to a variety of functions performed by a computer processor, digital signal processor, microprocessor, or Field Programmable Gate Array (FPGA). The processor described above may be configured according to the present invention to perform certain tasks by executing machine-readable software code or firmware code that defines certain methods disclosed herein. Software code or firmware code may be developed in different programming languages and in different formats or forms. Software code may also be compiled for different target platforms. However, the different code styles, types, and languages of software code and other types of configuration code that perform tasks in accordance with the present invention do not depart from the spirit and scope of the present invention.

The apparatus of the present application has been described in detail with reference to the preferred embodiments thereof, however, it should be noted that those skilled in the art can make modifications, alterations and adaptations based on the above disclosure without departing from the spirit of the present application. The present application includes the specific embodiments described above and any equivalents thereof.

Claims (10)

1. The utility model provides a horizontal feedway that presses of coil spring, is applied to the horizontal preformer of full-automatic coil spring, the horizontal preformer of full-automatic coil spring includes:

the device comprises a rack, two sides of which are respectively provided with a supporting column, and the middle of the two supporting columns is left empty to form an accommodating space;

the transverse pressing device is horizontally arranged on the upper side of the rack and is connected with the supporting column; it is characterized in that the spiral spring transverse pressing feeding device comprises:

the feeding device is provided with a feeding plate which is connected with the rack in a swinging way;

the lifting device is arranged in the accommodating space and comprises a workpiece supporting plate capable of swinging, and the workpiece supporting plate has three swinging position states which are respectively a horizontal state, a feeding state and a discharging state; when the workpiece supporting plate rotates to a feeding state, one end of the feeding plate is pressed downwards by one edge of the workpiece supporting plate, and the spring workpiece rolls onto the workpiece supporting plate from the feeding plate; when the workpiece supporting plate rotates to a horizontal state, the lifting device can lift the spring workpiece to be sent into the transverse pressing device or be connected out of the transverse pressing device; when the workpiece supporting plate rotates to a discharging state, the spring workpiece can be discharged from the workpiece supporting plate in a rolling mode.

2. The coil spring cross press feeding device according to claim 1, wherein the upper side of the feeding plate has an arc-shaped concave surface, an upward inclined press contact surface is provided on a side of the arc-shaped concave surface facing the elevating device, and the lower side of the feeding plate is pivotally connected to the frame.

3. The coil spring transverse-pressing feeding device as claimed in claim 2, wherein the feeding device further comprises a return tension spring, the return tension spring is arranged on the lower side of the feeding plate, one end of the return tension spring is connected with the opposite side of the pressing contact surface of the feeding plate, and the other end of the return tension spring is connected with the rack.

4. The coil spring cross press feeding device according to any one of claims 1 to 3, wherein the lifting device further comprises:

the bottom of the lifting outer cylinder is connected with the rack;

the lifting inner cylinder is connected with the lifting outer cylinder in a vertically sliding mode, and the middle part of the top of the lifting inner cylinder protrudes upwards to be connected with the workpiece supporting plate through a first pin shaft;

the lifting driving cylinder is arranged in the lifting inner cylinder, the bottom of a cylinder barrel of the lifting driving cylinder is connected with the frame pivot, and the top of a piston rod of the lifting driving cylinder is connected with the first pin shaft; and the number of the first and second groups,

the swing driving cylinder is arranged inside the lifting inner cylinder, the bottom of a cylinder barrel of the swing driving cylinder is in pivot connection with the lifting inner cylinder, and the top of a piston rod of the swing driving cylinder is connected with the bottom edge side close to the edge of the workpiece supporting plate through a second pin shaft.

5. The coil spring cross press feeder of claim 4, wherein the workpiece support plate is V-shaped.

6. The transverse-pressing feeding device for the spiral springs according to claim 5, wherein the bottom of the workpiece supporting plate is provided with two convex rib plates, and the first pin shaft and the second pin shaft are arranged on the two convex rib plates.

7. A cross-pressing feeding method for spiral springs by using the cross-pressing feeding device for spiral springs as claimed in any one of claims 1 to 6, which is characterized by mainly comprising the following steps:

placing a spring workpiece on a feeding plate;

the workpiece supporting plate rotates towards the feeding plate side to be in a feeding state, the edge of the workpiece supporting plate presses the press contact part of the feeding plate downwards, and the spring workpiece rolls onto the workpiece supporting plate from the feeding plate;

the workpiece pallet rotates to a horizontal state.

8. The coil spring cross press feeding method according to claim 7, wherein the step of rotating the workpiece pallet to a horizontal state further comprises the steps of:

a lifting driving cylinder of the lifting device pushes the workpiece supporting plate to move upwards, and the spring workpiece is lifted and sent to the transverse pressing device;

the lifting driving cylinder of the lifting device drives the workpiece supporting plate to move downwards, and the workpiece supporting plate is withdrawn from the transverse pressing device;

the transverse pressing device pre-presses the spring workpiece;

the driving cylinder of the lifting device drives the workpiece supporting plate to move upwards, and the spring workpiece is connected out of the transverse pressing device;

the driving cylinder of the lifting device drives the workpiece supporting plate to move downwards.

9. The coil spring cross-press feeding method according to claim 8, wherein the step of driving the workpiece supporting plate to move downwards by the driving cylinder of the lifting device is followed by the steps of:

the workpiece supporting plate rotates to a discharging state, and the spring workpiece is discharged from the workpiece supporting plate in a rolling mode.

10. A computer storage medium containing computer executable instructions, wherein the computer executable instructions when processed by data processing apparatus perform the feed method of any one of claims 7 to 9.

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