Hydraulic pump plunger assembly equipment and using method thereof

Abstract

The invention relates to the field of plunger assembly, in particular to hydraulic pump plunger assembly equipment and a using method thereof.The hydraulic pump plunger assembly equipment comprises a base, a servo motor is fixedly connected to the outer wall of the base, a sleeve is horizontally arranged at the top end of the base, the outer wall of the sleeve is sleeved with a shaft sleeve, and a ring sleeve is rotationally connected to the outer wall of the shaft sleeve; the bottom end of the ring sleeve is fixedly connected with a pull rod, the bottom end of the pull rod is connected with a hydraulic telescopic rod, an assembling mechanism is arranged in the inner wall of the base, and a driving mechanism is arranged on the bottom wall of the base. According to the hydraulic pump plunger assembling equipment, through the combined arrangement of the two sets of top discs and bottom discs, when the two sets of top discs and bottom discs are folded, plungers can be clamped, automatic feeding is achieved, and through slight rotation between the bottom discs and the top discs, when the plungers are pulled away from the bottom discs, the plungers can be automatically clamped; the rotatable part at the front end of the plunger can extrude the bottom disc and the top disc to be opened, and the plunger cannot be blocked.

Description

Technical Field

[0001] The invention relates to the field of plunger assembly, in particular to a hydraulic pump plunger assembly device and a use method thereof. Background Art

[0002] The plunger hydraulic pump, also known as the plunger pump, is an important device in the hydraulic system. It relies on the reciprocating motion of the plunger in the cylinder to change the volume of the sealed working chamber to achieve oil suction and oil pressure. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency and convenient flow adjustment. It is mainly used in hydraulic presses, large industrial machinery and ships.

[0003] It was found that the following problems have not been well solved: when assembling the plunger, the plunger needs to be placed on the plunger disk in sequence, and then the plunger disk is installed in the housing. However, since multiple plungers need to be installed in a plunger pump, the workers manually install them one by one. During long-term work, the work efficiency will gradually decrease. Therefore, special equipment is needed to assist the workers to complete the assembly and reduce the labor intensity of the workers. Summary of the invention

[0004] The purpose of the present invention is to provide a hydraulic pump plunger assembly device and a method of using the same, so as to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydraulic pump plunger assembly device, comprising a base, a servo motor is fixedly connected to the outer wall of the base, a sleeve is horizontally arranged at the top of the base, a shaft sleeve is sleeved on the outer wall of the sleeve, a ring sleeve is rotatably connected to the outer wall of the shaft sleeve, and a pull rod is fixedly connected to the bottom end of the ring sleeve, and a hydraulic telescopic rod is connected to the bottom end of the pull rod, an assembly mechanism is arranged in the inner wall of the base, and a driving mechanism is arranged on the bottom wall of the base;

[0005] The cam is an axially movable part of the cam, and the cam is connected to the movable part via a spline. The outer wall of the movable end of the cam is plugged with a center tube via a spline. The outer wall of the center tube is slidably connected with the inner wall of the sleeve. A material storage tray is provided through the front end of the center tube, and a plurality of material storage grooves are provided in an annular array on the outer wall of the material storage tray. A plurality of power bins are provided in an annular array with medium spacing on the inner wall of the material storage tray. External gears are rotatably connected in the inner walls of the plurality of power bins, and the shaft end of the external gear is connected to the inner wall of the power bin via a torsion spring. An internal gear is fixedly connected to the inner side wall of the external gear, and a right tooth plate is fixedly connected to the top end of the internal gear, and a shift rod is fixedly connected to the top end of the right tooth plate. The top end of the shift rod is hinged to a chassis, and a top plate is hinged to a rear end of the chassis. The chassis and the top plate are only arranged with a ten-degree rotation axis, and a torsion spring is provided between the rotation axes of the chassis and the top plate.

[0006] Both ends of the chassis are hinged with spring telescopic rods, and the bottom ends of the spring telescopic rods are rotatably connected to the inner wall of the material storage tray;

[0007] The top end of the internal gear is meshed with a left tooth plate, and the structure of the upper end of the left tooth plate is the same as that of the upper end of the right tooth plate;

[0008] The inner wall of the material storage tray is provided with a plurality of plug-in grooves arranged in a circular array, and the material storage tray and the sleeve are plug-connected with each other;

[0009] An operating cylinder is sleeved on the outer wall of the material storage tray, the outer wall of the operating cylinder is rotatably connected to the base, an annular groove is opened in the inner wall of the operating cylinder, and a sliding block is slidably connected in the inner wall of the annular groove, the sliding block is fixedly connected to the outer wall of the material storage tray, one side of the annular groove is connected to a transverse groove, and one side of the transverse groove is connected to an inner rotation groove;

[0010] A through slot is formed on the outer wall of the sleeve, and a cross bar is fixedly connected to the inner wall of the shaft sleeve, and the cross bar is slidably arranged inside the through slot.

[0011] Preferably, the assembly mechanism further comprises a toggle plate, the toggle plate is rotatably connected to the inner wall of the material storage plate, one side of the toggle plate is fixedly connected to the front end of the central tube, a plurality of arc grooves arranged in a ring array are opened on the outer wall of the toggle plate, and a plurality of tooth blocks are slidably connected to the outer walls of the plurality of arc grooves, the plurality of tooth blocks are meshed with the outer teeth of the external gear, a plurality of the tooth blocks have an elastic structure, and the other ends of the plurality of tooth blocks are slidably connected to the side wall of the toggle plate;

[0012] An inner arc groove is provided in the inner wall of the toggle plate, a convex point is slidably connected in the inner wall of the inner arc groove, and a pressure plate is fixedly connected to one side of the convex point, and the pressure plate is slidably connected to the inner wall of the toggle plate.

[0013] Preferably, the central tube includes a plurality of limit grooves, a plurality of the limit grooves are arranged in an annular array with equal spacing, and the plurality of limit grooves are opened on the outer wall of the central tube, and the inner walls of the plurality of limit grooves are all slidably connected with limit blocks, the bottom end of the limit block is hinged with a telescopic spring rod, and the shaft end of the telescopic spring rod is rotatably connected to the extended end of the connecting shaft, and the bottom end of the telescopic spring rod is rotatably connected to the outer wall of the connecting shaft;

[0014] The central tube is provided with two groups of limiting grooves;

[0015] The outer wall of the sleeve is provided with a through groove having the same structure as the upper limit groove on the central tube.

[0016] Preferably, the sleeve includes a trigger disk, the trigger disk is rotatably connected to the sleeve, and the inner wall of the trigger disk is provided with a plurality of grooves arranged in an annular array with equal spacing, and the grooves have the same structure as the limit grooves, a feeding bin is horizontally arranged at the top of the trigger disk, a feeding cavity is arranged in the inner wall of the feeding bin, and one side of the feeding cavity is connected to a waiting cavity, a baffle is rotatably connected to the inner wall of the waiting cavity, a telescopic lever is fixedly connected at the axial end of the baffle, and the telescopic end of the telescopic lever has a spring structure, a lower slider is hinged at the end of the telescopic lever, and the lower slider is slidably connected to the inner wall of the feeding bin, and the bottom end of the lower slider has a wedge-shaped surface formed by mechanical processing;

[0017] The front end of the telescopic lever is hinged with an upper slider, and the bottom side wall of the upper slider is fixedly connected with a cable, a winding wheel is wound around one side of the cable, both sides of the winding wheel have gear surfaces formed by machine processing, and the winding wheel is rotatably connected to the inner wall of the feed bin, and the top end of the winding wheel is meshed with an upper tooth plate, and the front end of the upper tooth plate extends into the inner wall of the feed cavity.

[0018] Preferably, a discharge port is provided at the bottom end of the feed bin, and the discharge port is arranged at the same level as the material storage trough.

[0019] Preferably, the driving mechanism includes a driving box, which is opened inside the base, and an active pull rod is slidably connected to the inner wall of the driving box, the side wall of the active pull rod is fixedly connected to the front end of the hydraulic telescopic rod, and the active pull rod is a telescopic oil rod structure, and the top end of the active pull rod is fixedly connected to a support plate, the support plate is slidably connected in the driving box, and the top end of the support plate is fixedly connected to a driven pull plate, the front end of the driven pull plate is fixedly connected to a pulling column, a connecting plate is sleeved on the outer wall of the pulling column, the top end of the connecting plate is rotatably connected to the inner wall of the driving box, and a storage box is rotatably connected to the inner wall of the connecting plate through a bearing.

[0020] Preferably, the driving mechanism also includes a strong magnetic disk, which is fixedly connected to the inner wall of the driving box, and a spring is fixedly connected to the outer wall of the strong magnetic disk, the front end of the spring is fit-connected with a plunger disk, the outer wall of the plunger disk is fit-connected with a tight block, and the top of the tight block is fixedly connected with a pressure column, a spring is sleeved on the outer wall of the pressure column, a rotating ring is horizontally arranged on the top of the pressure column, the outer wall of the rotating ring is rotatably connected to the outer wall of the driving box, and two semi-arc blocks are symmetrically fixedly connected in the inner wall of the rotating ring.

[0021] A method for using a hydraulic pump plunger assembly device comprises the following steps:

[0022] S1. With the start-up of the equipment, the servo motor drives the connecting shaft to rotate, and the connecting shaft drives the sleeve to rotate through a number of limit blocks. At this time, the sleeve drives the material storage tray to rotate. At this time, since the structure of the trigger plate is the same as that of the material storage tray, when the lower slider contacts the groove wall of the material storage groove in the trigger plate, the lower slider is squeezed to rise, and the lower slider moves up to push one end of the telescopic lever to rise. At the same time, the baffle on one side of the shaft end of the telescopic lever rotates counterclockwise, squeezing the plunger at the front end to move backward until the baffle is retracted into the inner wall of the waiting cavity. At this time, there is no restriction from the baffle, and the plunger rolls into the feeding groove by gravity until it falls onto the material storage tray;

[0023] S2, then the plunger falls and its own gravity impacts the bottom plate, causing the bottom plate to rotate clockwise under pressure, so that the plunger is located between the two bottom plates and the top plate and is temporarily restricted. At the same time, when the lower slider moves up, the telescopic lever can drive the upper slider at its left end to slide downward, and the cable on the upper slider pulls the winding wheel to rotate, pulling the winding spring to store force. At this time, since the two ends of the winding wheel are provided with gear surfaces, the rotation of the winding wheel can push the upper toothed plate forward through the gear surfaces, so that when the baffle rotates counterclockwise, the upper toothed plate is inserted between the two plungers to separate the upper plunger from the lower plunger. At this time, only the plunger at the lower end can fall onto the storage tray;

[0024] S3. When the servo motor drives the material storage tray to rotate one circle, the installation of the last plunger is completed. At this time, the hydraulic telescopic rod is pushed forward, and the hydraulic telescopic rod drives the ring sleeve through the pull rod. The ring sleeve is pushed forward through the shaft sleeve, and the cross bar in the shaft sleeve moves forward to fit with the movable end of the connecting shaft, pushing the movable end of the connecting shaft forward. The movable end of the connecting shaft moves forward to push the telescopic lever, and the telescopic lever rotates counterclockwise, pulling the limit block at the top of the telescopic lever out of the through groove on the sleeve. At this time, the sleeve and the center tube are separated. At this time, the movable end of the connecting shaft is continuously pushed, and the movable end of the connecting shaft drives the center tube to disengage from the sleeve, and moves the material storage tray toward the position of the plunger tray, and the convex point on the material storage tray will enter the horizontal groove and move forward stably;

[0025] When the material storage tray moves forward, the connecting shaft can be driven by the servo motor, the connecting shaft drives the center tube to rotate, and the center tube drives the dial plate to rotate. Since several tooth blocks on the dial plate rise through the arc groove, and the tooth blocks are engaged with the outer teeth of the outer gear, the outer gear is driven to rotate, and the outer gear drives the inner gear to rotate. The inner gear pulls the left and right tooth plates on both sides to rotate relative to each other, causing the two sets of bottom plates and top plates to be relatively retracted, and the plunger is clamped at the center of the material storage slot;

[0026] S4. Following the end of the plunger fitting with the surface of the plunger disc, the material storage disc continues to move forward, the convex point on the material storage disc enters the inner rotation groove, the material storage disc deflects, the plunger on the material storage disc moves synchronously, and the end of the plunger is inserted into the plunger disc. At this time, the strong magnetic field adsorbs the plunger, and the plunger disc is reset by the spring. When the plunger disc is reset, it impacts the pressure plate, and the convex point on the pressure plate squeezes the groove wall of the inner arc groove, so that the toggle disc rotates clockwise. The arc groove on the toggle disc pushes the gear block to move downward, so that several gear blocks are gathered toward the center of the toggle disc, and the connection between the toggle disc and the external gear is released. At this time, the external gear is reset by the torsion spring, and the left and right gear plates are reset, pulling the two sets of top plates and bottom plates to move backward relative to each other. At this time, the close fit clamping of the plunger is released, and the material storage disc is driven to move backward by the hydraulic telescopic rod, so that the plunger can be moved out of the material storage groove;

[0027] S5. As the material storage tray moves backward, the active pull rod at one end of the hydraulic telescopic rod is in the same resetting direction as the material storage tray. The active pull rod pulls the driven pull plate through the support plate, and the pulling column on the driven pull plate pulls the connecting plate. Since the connecting plate and the storage box are at a forty-five-degree inclination angle, the connecting plate can be deflected ninety degrees by the pulling column, so that the storage box is in an upward setting. At this time, the staff rotates the rotating ring, and the rotating ring pulls the torsion spring. The semi-arc block on the rotating ring is removed from the pressing, and the pressing column is reset by the spring, so that the tight block and the plunger plate are released from the fit, and the plunger plate is released from the restriction. The staff can directly take out the plunger tray full of plungers, and install a new plunger tray to perform continuous plunger assembly operations.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] In the present invention, through the combination arrangement of two sets of top plates and bottom plates, the plunger can be clamped when the two sets of top plates and bottom plates are closed, so that automatic loading is realized, and the labor degree of the staff is reduced by fast loading.

[0030] In the present invention, the bottom plate and the top plate can be slightly rotated, so when the plunger is pulled out from between the two, the rotatable part of the front end of the plunger can squeeze the bottom plate and the top plate to open, and will not block the plunger. After the plunger is moved out, the bottom plate and the top plate reset themselves, so that the material can be restricted during subsequent loading.

[0031] In the present invention, through the arrangement of the drive box, since the active pull rod is a telescopic oil rod structure, during the material pushing process, the active pull rod can pull the plunger disc to flip, and after the plunger disc flips, the material can be docked and assembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the general assembly of the present invention;

[0033] Figure 2The schematic diagram of the cross-sectional structure of the general assembly of the present invention is shown in FIG. Figure 1 ;

[0034] Figure 3 The schematic diagram of the cross-sectional structure of the general assembly of the present invention is shown in FIG. Figure 2 ;

[0035] Figure 4 It is a schematic diagram of the cross-sectional structure of the feeding bin in the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the trigger disk in the present invention;

[0037] Figure 6 The cross-sectional structure diagram of the assembly mechanism in the present invention is shown in FIG. Figure 1 ;

[0038] Figure 7 The cross-sectional structure diagram of the assembly mechanism in the present invention is shown in FIG. Figure 2 ;

[0039] Figure 8 It is a schematic diagram of the cross-sectional structure of the material storage tray in the present invention;

[0040] Fig. 9 For the present invention Figure 8 The enlarged structural diagram at A in the middle;

[0041] Fig.10 The cross-sectional structure of the sleeve in the present invention is shown in FIG. Figure 1 ;

[0042] Fig.11 For the present invention Fig.10 The enlarged structural diagram at B in the middle;

[0043] Fig.12 The cross-sectional structure of the sleeve in the present invention is shown in FIG. Figure 2 ;

[0044] Fig.13 Schematic diagram of the arc groove distribution structure in the present invention;

[0045] Fig.14 It is a schematic diagram of the three-dimensional structure of the driving mechanism in the present invention;

[0046] Fig.15 It is a schematic diagram of the pressure column distribution structure in the present invention;

[0047] Fig.16 It is a three-dimensional structural diagram of the storage box in the present invention;

[0048] Fig.17 It is a schematic diagram of the plug-in structure of the sleeve and the material storage tray in the present invention.

[0049] In the figure: 1. base; 2. sleeve; 21. trigger plate; 22. groove; 23. feed bin; 24. feed chamber; 25. waiting chamber; 26. baffle; 27. telescopic lever; 28. lower slider; 29. ​​upper slider; 210. winding wheel; 211. upper tooth plate; 3. shaft sleeve; 4. ring sleeve; 5. hydraulic telescopic rod; 6. assembly mechanism; 61. connecting shaft; 62. center tube; 6210. limit groove; 6211. limit block; 6212. telescopic spring rod; 6213. through groove; 6214. spring telescopic rod; 63. storage tray; 64. storage slot; 65. power bin; 66. outer gear; 67. inner gear; 68. right tooth plate; 69. lever ;610, chassis;611, top plate;612, left tooth plate;613, plug-in slot;614, operating cylinder;615, ring groove;616, sliding block;617, horizontal groove;618, inner rotation groove;619, toggle plate;620, arc groove;621, tooth block;622, inner arc groove;623, convex point;624, pressure plate;7, driving mechanism;71, driving box;72, active pull rod;73, supporting plate;74, driven pull plate;75, pulling column;76, connecting plate;77, storage box;78, strong magnetic disk;79, plunger disk;710, tight block;711, pressure column;712, rotating ring;713, semi-arc block;8, through groove;9, cross bar. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0051] See also Figures 1 to 17 The present invention provides a technical solution: a hydraulic pump plunger assembly device, comprising a base 1, a servo motor is fixedly connected to the outer wall of the base 1, a sleeve 2 is horizontally arranged at the top of the base 1, a shaft sleeve 3 is sleeved on the outer wall of the sleeve 2, a ring sleeve 4 is rotatably connected to the outer wall of the shaft sleeve 3, and a pull rod is fixedly connected to the bottom end of the ring sleeve 4, and a hydraulic telescopic rod 5 is connected to the bottom end of the pull rod, an assembly mechanism 6 is arranged in the inner wall of the base 1, and a driving mechanism 7 is arranged on the bottom wall of the base 1;

[0052] The assembly mechanism 6 includes a connecting shaft 61, one end of which is fixedly connected to the main shaft of the servo motor. The connecting shaft 61 is a telescopic structure, and the fixed end and the movable end of the connecting shaft 61 are connected by a spline. A center tube 62 is inserted on the outer wall of the movable end of the connecting shaft 61 through a spline. The outer wall of the center tube 62 is slidably connected to the inner wall of the sleeve 2. A material storage tray 63 is penetrated through the front end of the center tube 62, and a plurality of material storage grooves 64 are provided in an annular array on the outer wall of the material storage tray 63. A plurality of power bins 65 are provided in an annular array with medium spacing on the inner wall of the material storage tray 63. An outer gear 66 is rotatably connected to the inner wall of a plurality of power bins 65, and the shaft end of the outer gear 66 is connected to the inner wall of the power bin 65 through a torsion spring, an inner gear 67 is fixedly connected to the inner wall of the outer gear 66, and the top of the inner gear 67 is fixedly connected to a right toothed plate 68, and the top of the right toothed plate 68 is fixedly connected to a lever 69, the top of the lever 69 is hinged to a chassis 610, and the rear end of the chassis 610 is hinged to a top plate 611, the chassis 610 and the top plate 611 are only set as a ten-degree rotation axis, and a torsion spring is set between the rotation axes of the chassis 610 and the top plate 611;

[0053] Both ends of the chassis 610 are hinged with spring telescopic rods 6214, and the bottom ends of the spring telescopic rods 6214 are rotatably connected to the inner wall of the material storage tray 63;

[0054] The top end of the internal gear 67 is meshed with a left tooth plate 612, and the structure of the upper end of the left tooth plate 612 is the same as that of the upper end of the right tooth plate 68;

[0055] The inner wall of the material storage tray 63 is provided with a plurality of plug-in slots 613 arranged in a circular array, and the material storage tray 63 and the sleeve 2 are plug-in-arranged with each other;

[0056] An operating cylinder 614 is sleeved on the outer wall of the material storage tray 63, and the outer wall of the operating cylinder 614 is rotatably connected to the base 1. An annular groove 615 is provided in the inner wall of the operating cylinder 614, and a sliding block 616 is slidably connected to the inner wall of the annular groove 615. The sliding block 616 is fixedly connected to the outer wall of the material storage tray 63, and one side of the annular groove 615 is connected to a transverse groove 617, and one side of the transverse groove 617 is connected to an inner rotation groove 618;

[0057] A through slot 8 is formed on the outer wall of the sleeve 2 , and a cross bar 9 is fixedly connected to the inner wall of the shaft sleeve 3 , and the cross bar 9 is slidably arranged inside the through slot 8 .

[0058] In this embodiment, Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the assembly mechanism 6 also includes a toggle plate 619, which is rotatably connected to the inner wall of the material storage plate 63, one side of the toggle plate 619 is fixedly connected to the front end of the center tube 62, and the outer wall of the toggle plate 619 is provided with a plurality of arc grooves 620 arranged in a ring array, and the outer walls of the plurality of arc grooves 620 are slidably connected with tooth blocks 621, and the plurality of tooth blocks 621 are all meshed with the outer teeth of the external gear 66, and the plurality of tooth blocks 621 have an elastic structure, and the other ends of the plurality of tooth blocks 621 are slidably connected to the side wall of the toggle plate 619;

[0059] An inner arc groove 622 is opened in the inner wall of the toggle plate 619, and a protrusion 623 is slidably connected in the inner wall of the inner arc groove 622, and a pressure plate 624 is fixedly connected to one side of the protrusion 623, and the pressure plate 624 is slidably connected to the inner wall of the toggle plate 619. When the toggle plate 619 is pressed and moves forward, the protrusion 623 on the toggle plate 619 moves forward and squeezes the groove wall of the inner arc groove 622, causing the toggle plate 619 to rotate clockwise, and the groove walls of several arc grooves 620 on the toggle plate 619 press the tooth block 621 downward, causing the several tooth blocks 621 to be disengaged from the outer teeth of the external gear 66. At this time, the outer tooth block 621 can be reset by the torsion spring.

[0060] In this embodiment, Figure 5 , Figure 6 , Fig.10 , Fig.11 and Fig.12 As shown, the central tube 62 includes a limiting groove 6210, and a plurality of limiting grooves 6210 are arranged in an annular array with equal spacing, and the plurality of limiting grooves 6210 are opened on the outer wall of the central tube 62, and the inner walls of the plurality of limiting grooves 6210 are all slidably connected with limiting blocks 6211, and the bottom end of the limiting block 6211 is hinged with a telescopic spring rod 6212, and the shaft end of the telescopic spring rod 6212 is rotatably connected to the extended end of the connecting shaft 61, and the bottom end of the telescopic spring rod 6212 is rotatably connected to the outer wall of the connecting shaft 61;

[0061] There are two groups of limiting grooves 6210 on the central tube 62;

[0062] A through groove 6213 having the same structure as the upper limit groove 6210 on the center tube 62 is provided on the outer wall of the sleeve 2. When the connecting shaft 61 is pushed forward, the connecting shaft 61 drives the bottom end of the telescopic lever 27 to move to the right, causing the left end of the telescopic lever 27 to move downward, and the baffle 26 on the telescopic lever 27 is received in the limit groove 6210. The baffle 26 is no longer inserted in the through groove 6213. At this time, the connection between the sleeve 2 and the center tube 62 is released.

[0063] In this embodiment, Figure 1 , Figure 4 and Figure 5As shown, the sleeve 2 includes a trigger disk 21, which is rotatably connected to the sleeve 2, and the inner wall of the trigger disk 21 is provided with a plurality of grooves 22 arranged in an equidistant annular array, and the grooves 22 have the same structure as the limit groove 6210, and a feed bin 23 is horizontally arranged at the top of the trigger disk 21, and a feed cavity 24 is arranged in the inner wall of the feed bin 23, and a waiting cavity 25 is connected to one side of the feed cavity 24, and a baffle 26 is rotatably connected to the inner wall of the waiting cavity 25, and a telescopic lever 27 is fixedly connected to the axial end of the baffle 26, and the telescopic end of the telescopic lever 27 has a spring structure, and a lower slider 28 is hinged at the end of the telescopic lever 27, and the lower slider 28 is slidably connected to the inner wall of the feed bin 23, and the bottom end of the lower slider 28 has a wedge-shaped surface formed by mechanical processing;

[0064] The front end of the telescopic lever 27 is hinged with an upper slider 29, and the bottom side wall of the upper slider 29 is fixedly connected with a cable, and a winding wheel 210 is wound around one side of the cable. Both sides of the winding wheel 210 have gear surfaces formed by mechanical processing, and the winding wheel 210 is rotatably connected to the inner wall of the feed bin 23, and the top of the winding wheel 210 is meshed with an upper tooth plate 211, and the front end of the upper tooth plate 211 extends into the inner wall of the feed chamber 24. When the lower slider 28 moves up, the telescopic lever can be used to 27 drives the upper slider 29 at its left end to slide downward, and the cable on the upper slider 29 pulls the winding wheel 210 to rotate, pulling the winding spring to accumulate force. At this time, since the two ends of the winding wheel 210 are provided with gear surfaces, the rotation of the winding wheel 210 can push the upper tooth plate 211 forward through the gear surface, so that when the baffle 26 rotates counterclockwise, the upper tooth plate 211 is inserted between the two plungers to separate the upper plunger from the lower end. At this time, only the plunger at the lower end can fall onto the storage tray 63.

[0065] In this embodiment, Figure 1 and Figure 4 As shown, a discharge port is provided at the bottom end of the feed bin 23, and the discharge port is arranged at the same level as the material storage trough 64, so that when the plunger falls, it can directly fall into the material storage trough 64.

[0066] In this embodiment, Figure 1 , Fig.14 , Fig.15 and Fig.16As shown, the driving mechanism 7 includes a driving box 71, which is opened inside the base 1, and an active pull rod 72 is slidably connected in the inner wall of the driving box 71, and the side wall of the active pull rod 72 is fixedly connected to the front end of the hydraulic telescopic rod 5, and the active pull rod 72 is a telescopic oil rod structure, and the top of the active pull rod 72 is fixedly connected to a support plate 73, the support plate 73 is slidably connected in the driving box 71, and the top of the support plate 73 is fixedly connected to a driven pull plate 74, and the front end of the driven pull plate 74 is fixedly connected to a pulling column 75, and the outer wall of the pulling column 75 is sleeved with a connecting plate 7 6. The top end of the connecting plate 76 is rotatably connected to the inner wall of the driving box 71, and the storage box 77 is rotatably connected to the inner wall of the connecting plate 76 through a bearing. As the material storage tray 63 moves backward, the active pull rod 72 at one end of the hydraulic telescopic rod 5 has the same reset direction as the material storage tray 63. The active pull rod 72 pulls the driven pull plate 74 through the support plate 73, and the pulling column 75 on the driven pull plate 74 pulls the connecting plate 76. Since the connecting plate 76 and the storage box 77 are at an inclined angle of forty-five degrees, the connecting plate 76 can be deflected ninety degrees through the pulling column 75, so that the storage box 77 is in an upward setting.

[0067] In this embodiment, Fig.14 , Fig.15 and Fig.16 As shown, the driving mechanism 7 also includes a strong magnetic disk 78, which is fixedly connected to the inner wall of the driving box 71, and a spring is fixedly connected to the outer wall of the strong magnetic disk 78, and the front end of the spring is fitted with a plunger disk 79, and the outer wall of the plunger disk 79 is fitted with a tight block 710, and the top of the tight block 710 is fixedly connected to a pressure column 711, and the outer wall of the pressure column 711 is sleeved with a spring, and the top of the pressure column 711 is horizontally provided with a rotating ring 712, and the outer wall of the rotating ring 712 is rotatably connected to the driving box 71. On the outer wall of the movable box 71 and in the inner wall of the rotating ring 712, there are two semi-arc blocks 713 symmetrically fixedly connected. The staff rotates the rotating ring 712, and the rotating ring 712 pulls the torsion spring. The semi-arc blocks 713 on the rotating ring 712 are removed from the pressing position, and the pressure column 711 is reset by the spring, so that the tight block 710 and the plunger plate are released from the fit, and the plunger plate is released from the restriction. The staff can directly take out the plunger disk 79 filled with plungers, and install a new plunger disk 79 to perform continuous plunger assembly operations.

[0068] In this embodiment, Figures 1 to 17 As shown, a method for using a hydraulic pump plunger assembly device comprises the following steps:

[0069] S1. With the start-up of the equipment, the connecting shaft 61 is driven to rotate by the servo motor, and the connecting shaft 61 drives the sleeve 2 to rotate through a number of limit blocks 6211. At this time, the sleeve 2 drives the material storage tray 63 to rotate. At this time, since the structure of the trigger disk 21 is the same as that of the material storage tray 63, when the lower slider 28 contacts the groove wall of the material storage groove 64 in the trigger disk 21, the lower slider 28 is squeezed to rise. The lower slider 28 moves up to push one end of the telescopic lever 27 to rise. At the same time, the baffle 26 on one side of the shaft end of the telescopic lever 27 rotates counterclockwise, squeezing the plunger at the front end to move backward until the baffle 26 is retracted into the inner wall of the waiting chamber 25. At this time, there is no restriction from the baffle 26, and the plunger rolls into the feeding trough by gravity until it falls onto the material storage tray 63.

[0070] S2, then the plunger falls and its own gravity impacts the bottom plate 610, so that the bottom plate 610 is pressed and rotates clockwise, so that the plunger is located between the two bottom plates 610 and the top plate 611, and is temporarily restricted. At the same time, when the lower slider 28 moves up, the telescopic lever 27 can drive the upper slider 29 at its left end to slide downward, and the cable on the upper slider 29 pulls the winding wheel 210 to rotate, pulling the winding spring to store force. At this time, since the two ends of the winding wheel 210 are provided with gear surfaces, the rotation of the winding wheel 210 can push the upper tooth plate 211 forward through the gear surface, so that when the baffle 26 rotates counterclockwise, the upper tooth plate 211 is inserted between the two plungers to separate the upper plunger from the lower plunger. At this time, only the plunger at the lower end can fall onto the storage tray 63;

[0071] S3, when the servo motor drives the material storage tray 63 to rotate one circle, the installation of the last plunger is completed, and the hydraulic telescopic rod 5 is pushed forward at this time, and the hydraulic telescopic rod 5 drives the ring sleeve 4 through the pull rod, and the ring sleeve 4 is pushed forward through the shaft sleeve 3, and the cross bar 9 in the shaft sleeve 3 moves forward to fit with the movable end of the connecting shaft 61, pushing the movable end of the connecting shaft 61 to move forward, and the movable end of the connecting shaft 61 moves forward to push the telescopic lever 27, and the telescopic lever 27 rotates counterclockwise, pulling the limit block 6211 at the top of the telescopic lever 27 to move out of the through groove 6213 on the sleeve 2, and then the sleeve 2 and the center tube 62 are separated, and at this time, the movable end of the connecting shaft 61 is continuously pushed, and the movable end of the connecting shaft 61 drives the center tube 62 to disengage from the sleeve 2, and moves the material storage tray 63 toward the position of the plunger tray 79, and the convex point 623 on the material storage tray 63 will enter the transverse groove 617, and move forward stably;

[0072] When the material storage tray 63 moves forward, the connecting shaft 61 can be driven by the servo motor, and the connecting shaft 61 drives the center tube 62 to rotate, and the center tube 62 drives the dial plate 619 to rotate. Since a plurality of tooth blocks 621 on the dial plate 619 rise through the arc groove 620, and the tooth blocks 621 mesh with the outer teeth of the outer gear 66, the outer gear 66 is driven to rotate, and the outer gear 66 drives the inner gear 67 to rotate, and the inner gear 67 pulls the left tooth plate 612 and the right tooth plate 68 on both sides to rotate relative to each other, so that the two sets of bottom plates 610 and top plates 611 are relatively retracted, and the plunger is clamped at the center of the material storage slot 64;

[0073] S4, as the end of the plunger fits the surface of the plunger disk 79, the material storage disk 63 continues to move forward, the convex point 623 on the material storage disk 63 enters the inner rotation groove 618, the material storage disk 63 deflects, the plunger on the material storage disk 63 moves synchronously, and the end of the plunger is inserted into the plunger disk 79. At this time, the strong magnetic disk 78 adsorbs the plunger, and the plunger disk 79 is reset by the spring. When the plunger disk 79 is reset, it impacts the pressure plate 624, and the convex point 623 on the pressure plate 624 squeezes the groove wall of the inner arc groove 622, so that the toggle disk 619 rotates clockwise, and the toggle The arc groove 620 on the plate 619 pushes the tooth block 621 to move downward, so that the plurality of tooth blocks 621 are gathered toward the center of the dial plate 619, and the connection between the dial plate 619 and the outer gear 66 is released. At this time, the outer gear 66 is reset by the torsion spring, and the left tooth plate 612 and the right tooth plate 68 are reset, pulling the two sets of top plates 611 and bottom plates 610 to move backward relative to each other, and the close fit clamping of the obstruction is released. At this time, the material storage plate 63 is driven to move backward by the hydraulic telescopic rod 5, so that the plunger can be moved out of the material storage groove 64;

[0074] S5. As the material storage tray 63 moves backward, the active pull rod 72 at one end of the hydraulic telescopic rod 5 is in the same reset direction as the material storage tray 63. The active pull rod 72 pulls the driven pull plate 74 through the support plate 73, and the pulling column 75 on the driven pull plate 74 pulls the connecting plate 76. Since the connecting plate 76 and the storage box 77 are at a forty-five degree inclination angle, the connecting plate 76 can be deflected ninety degrees by the pulling column 75, so that the storage box 77 is in an upward setting. At this time, the staff rotates the rotating ring 712, and the rotating ring 712 pulls the torsion spring. The semi-arc block 713 on the rotating ring 712 is removed from the pressing, and the pressing column 711 is reset by the spring, so that the tight block 710 is released from the plunger plate, and the plunger plate is released from the restriction. The staff can directly take out the plunger tray 79 filled with plungers, and install a new plunger tray 79 to perform continuous plunger assembly operations.

[0075] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hydraulic pump plunger assembly device, comprising a base (1), a servo motor is fixedly connected to the outer wall of the base (1), a sleeve (2) is horizontally arranged on the top of the base (1), a shaft sleeve (3) is sleeved on the outer wall of the sleeve (2), a ring sleeve (4) is rotatably connected to the outer wall of the shaft sleeve (3), and a pull rod is fixedly connected to the bottom end of the ring sleeve (4), and a hydraulic telescopic rod (5) is connected to the bottom end of the pull rod, characterized in that: An assembly mechanism (6) is arranged in the inner wall of the base (1), and a driving mechanism (7) is arranged on the bottom wall of the base (1); The assembly mechanism (6) comprises a connecting shaft (61), one end of which is fixedly connected to the main shaft of the servo motor, the connecting shaft (61) is a telescopic structure, and the fixed end and the movable end of the connecting shaft (61) are connected by a spline, a center tube (62) is inserted into the outer wall of the movable end of the connecting shaft (61) by a spline, the outer wall of the center tube (62) is slidably connected to the inner wall of the sleeve (2), a material storage tray (63) is provided through the front end of the center tube (62), and a plurality of material storage grooves (64) are provided in an annular array on the outer wall of the material storage tray (63), and a plurality of power bins (65) are provided in an annular array at equal intervals on the inner wall of the material storage tray (63). An external gear (66) is rotatably connected to the inner wall of a plurality of the power bins (65), and the shaft end of the external gear (66) is connected to the inner wall of the power bin (65) through a torsion spring, an internal gear (67) is fixedly connected to the inner wall of the external gear (66), and the top end of the internal gear (67) is fixedly connected to a right toothed plate (68), and the top end of the right toothed plate (68) is fixedly connected to a lever (69), the top end of the lever (69) is hinged to a chassis (610), and the rear end of the chassis (610) is hinged to a top plate (611), the chassis (610) and the top plate (611) are only arranged as a ten-degree rotation axis, and a torsion spring is arranged between the rotation axes of the chassis (610) and the top plate (611).

2. A hydraulic pump plunger assembly device according to claim 1, characterized in that: Both ends of the chassis (610) are hinged with spring telescopic rods (6214), and the bottom end of the spring telescopic rod (6214) is rotatably connected to the inner wall of the material storage tray (63); The top end of the internal gear (67) is meshed with a left tooth plate (612), and the structure of the upper end of the left tooth plate (612) is the same as the structure of the upper end of the right tooth plate (68); The inner wall of the material storage tray (63) is provided with a plurality of plug-in grooves (613) arranged in a circular array, and the material storage tray (63) and the sleeve (2) are plug-connected with each other; An operating cylinder (614) is sleeved on the outer wall of the material storage tray (63), the outer wall of the operating cylinder (614) is rotatably connected to the base (1), an annular groove (615) is provided in the inner wall of the operating cylinder (614), and a sliding block (616) is slidably connected in the inner wall of the annular groove (615), the sliding block (616) is fixedly connected to the outer wall of the material storage tray (63), one side of the annular groove (615) is connected to a transverse groove (617), and one side of the transverse groove (617) is connected to an inner rotation groove (618); A through groove (8) is provided on the outer wall of the sleeve (2), and a cross bar (9) is fixedly connected to the inner wall of the shaft sleeve (3), and the cross bar (9) is slidably arranged inside the through groove (8).

3. A hydraulic pump plunger assembly device according to claim 2, characterized in that: The assembly mechanism (6) further comprises a toggle plate (619), wherein the toggle plate (619) is rotatably connected to the inner wall of the material storage plate (63), one side of the toggle plate (619) is fixedly connected to the front end of the central tube (62), a plurality of arc grooves (620) arranged in a circular array are provided on the outer wall of the toggle plate (619), and a plurality of tooth blocks (621) are slidably connected to the outer walls of the plurality of arc grooves (620), and the plurality of tooth blocks (621) are meshed with the outer teeth of the external gear (66), and the plurality of tooth blocks (621) have an elastic structure, and the other ends of the plurality of tooth blocks (621) are slidably connected to the side wall of the toggle plate (619); An inner arc groove (622) is provided in the inner wall of the toggle plate (619), and a convex point (623) is slidably connected to the inner wall of the inner arc groove (622), and a pressure plate (624) is fixedly connected to one side of the convex point (623), and the pressure plate (624) is slidably connected to the inner wall of the toggle plate (619).

4. A hydraulic pump plunger assembly device according to claim 3, characterized in that: The central tube (62) comprises a plurality of limiting grooves (6210), wherein the limiting grooves (6210) are arranged in an annular array at equal intervals, and the plurality of limiting grooves (6210) are opened on the outer wall of the central tube (62), and the inner walls of the plurality of limiting grooves (6210) are all slidably connected with limiting blocks (6211), the bottom end of the limiting block (6211) is hinged with a telescopic spring rod (6212), and the shaft end of the telescopic spring rod (6212) is rotatably connected to the extended end of the connecting shaft (61), and the bottom end of the telescopic spring rod (6212) is rotatably connected to the outer wall of the connecting shaft (61); The central tube (62) is provided with two groups of limiting grooves (6210); The outer wall of the sleeve (2) is provided with a through groove (6213) having the same structure as the upper limit groove (6210) of the central tube (62).

5. The hydraulic pump plunger assembly device according to claim 4, characterized in that: The sleeve (2) comprises a trigger plate (21), the trigger plate (21) is rotatably connected to the sleeve (2), and a plurality of grooves (22) arranged in an annular array with equal spacing are provided on the inner wall of the trigger plate (21), and the grooves (22) have the same structure as the limit groove (6210), and a feed bin (23) is horizontally arranged at the top of the trigger plate (21), and a feed cavity (24) is provided in the inner wall of the feed bin (23), and one side of the feed cavity (24) is provided with a feed cavity (24). A waiting chamber (25) is connected to the side of the waiting chamber (25), a baffle (26) is rotatably connected to the inner wall of the waiting chamber (25), a telescopic lever (27) is fixedly connected to the axial end of the baffle (26), and the telescopic end of the telescopic lever (27) has a spring structure, a lower slider (28) is hinged at the end of the telescopic lever (27), and the lower slider (28) is slidably connected to the inner wall of the feeding bin (23), and the bottom end of the lower slider (28) has a wedge-shaped surface formed by mechanical processing; The front end of the telescopic lever (27) is hinged with an upper slider (29), and the bottom side wall of the upper slider (29) is fixedly connected with a cable, a winding wheel (210) is wound around one side of the cable, both sides of the winding wheel (210) have gear surfaces formed by mechanical processing, and the winding wheel (210) is rotatably connected to the inner wall of the feed bin (23), and the top end of the winding wheel (210) is meshedly connected with an upper tooth plate (211), and the front end of the upper tooth plate (211) extends into the inner wall of the feed cavity (24).

6. A hydraulic pump plunger assembly device according to claim 5, characterized in that: The bottom end of the feed bin (23) is provided with a discharge port, and the discharge port is arranged at the same level as the material storage trough (64).

7. The hydraulic pump plunger assembly device according to claim 5, characterized in that: The driving mechanism (7) comprises a driving box (71), the driving box (71) is arranged inside the base (1), and an active pull rod (72) is slidably connected in the inner wall of the driving box (71), the side wall of the active pull rod (72) is fixedly connected to the front end of the hydraulic telescopic rod (5), and the active pull rod (72) is a telescopic oil rod structure, and the top end of the active pull rod (72) is fixedly connected to a support plate (73), the support plate (73) is slidably connected in the driving box (71), and the top end of the support plate (73) is fixedly connected to a driven pull plate (74), the front end of the driven pull plate (74) is fixedly connected to a pulling column (75), the outer wall of the pulling column (75) is sleeved with a connecting plate (76), the top end of the connecting plate (76) is rotatably connected to the inner wall of the driving box (71), and a storage box (77) is rotatably connected in the inner wall of the connecting plate (76) through a bearing.

8. The hydraulic pump plunger assembly device according to claim 7, characterized in that: The driving mechanism (7) further comprises a strong magnetic disk (78), the strong magnetic disk (78) being fixedly connected to the inner wall of the storage box (77), and a spring being fixedly connected to the outer wall of the strong magnetic disk (78), a front end of the spring being fittedly connected to a plunger disk (79), a tight block (710) being fittedly connected to the outer wall of the plunger disk (79), and a pressure column (711) being fixedly connected to the top end of the tight block (710), a spring being sleeved on the outer wall of the pressure column (711), a rotating ring (712) being horizontally arranged at the top end of the pressure column (711), the outer wall of the rotating ring (712) being rotatably connected to the outer wall of the driving box (71), and two semi-arc blocks (713) being symmetrically fixedly connected to the inner wall of the rotating ring (712).

9. A method for using a hydraulic pump plunger assembly device, using the hydraulic pump plunger assembly device according to any one of claims 1 to 8, characterized in that: The steps include: S1. With the start-up of the equipment, the servo motor drives the connecting shaft (61) to rotate, and the connecting shaft (61) drives the sleeve (2) to rotate through a plurality of limit blocks (6211). At this time, the sleeve (2) drives the material storage tray (63) to rotate. At this time, since the structure of the triggering tray (21) is the same as that of the material storage tray (63), when the lower slider (28) contacts the groove wall of the material storage groove (64) in the triggering tray (21), the lower slider (28) is pressed to rise. The lower slider (28) moves upward to push one end of the telescopic lever (27) to rise. At the same time, the baffle (26) on one side of the shaft end of the telescopic lever (27) rotates counterclockwise, pressing the plunger at the front end to move backward until the baffle (26) is received in the inner wall of the waiting chamber (25). At this time, there is no restriction of the baffle (26), and the plunger rolls into the feeding groove by gravity until it falls on the material storage tray (63); S2, the plunger then falls and its own gravity impacts the bottom plate (610), so that the bottom plate (610) is pressed and rotates clockwise, so that the plunger is located between the two bottom plates (610) and the top plate (611), and is temporarily restricted. At the same time, when the lower slider (28) moves upward, the telescopic lever (27) can drive the upper slider (29) at its left end to slide downward, and the cable on the upper slider (29) pulls the winding wheel (210) to rotate, pulling the winding spring to accumulate force. At this time, since the two ends of the winding wheel (210) are provided with gear surfaces, the rotation of the winding wheel (210) can push the upper tooth plate (211) forward through the gear surface, so that when the baffle (26) rotates counterclockwise, the upper tooth plate (211) is inserted between the two plungers, separating the plunger at the upper end from the plunger at the lower end. At this time, only the plunger at the lower end can fall onto the storage tray (63); S3. When the servo motor drives the material storage tray (63) to rotate one circle, the installation of the last plunger is completed. At this time, the hydraulic telescopic rod (5) is pushed forward, and the hydraulic telescopic rod (5) drives the ring sleeve (4) through the pull rod. The ring sleeve (4) is pushed forward through the shaft sleeve (3). The cross bar (9) in the shaft sleeve (3) moves forward and fits with the movable end of the connecting shaft (61), pushing the movable end of the connecting shaft (61) forward. The movable end of the connecting shaft (61) moves forward and pushes the telescopic lever (27), and the telescopic lever (27) rotates counterclockwise. , pull the limit block (6211) at the top of the telescopic lever (27) to move out of the through groove (6213) on the sleeve (2), and then the sleeve (2) and the center tube (62) are separated. At this time, the movable end of the connecting shaft (61) is continuously pushed, and the movable end of the connecting shaft (61) drives the center tube (62) to disengage from the sleeve (2), and moves the material storage tray (63) toward the position of the plunger tray (79), and the convex point (623) on the material storage tray (63) enters the transverse groove (617), and moves forward stably; When the material storage tray (63) moves forward, the connecting shaft (61) can be driven by the servo motor, and the connecting shaft (61) drives the central tube (62) to rotate, and the central tube (62) drives the dial (619) to rotate. Since a plurality of tooth blocks (621) on the dial (619) rise through the arc groove (620), and the tooth blocks (621) mesh with the outer teeth of the outer gear (66), the outer gear (66) is driven to rotate, and the outer gear (66) drives the inner gear (67) to rotate. The inner gear (67) pulls the left tooth plate (612) and the right tooth plate (68) on both sides to rotate relative to each other, so that the two sets of bottom plates (610) and top plates (611) are relatively retracted, and the plunger is clamped at the center of the material storage trough (64); S4. Immediately after the end of the plunger is in contact with the surface of the plunger disk (79), the material storage disk (63) continues to move forward, the convex point (623) on the material storage disk (63) enters the inner rotation groove (618), the material storage disk (63) deflects, the plunger on the material storage disk (63) moves synchronously, and the end of the plunger is inserted into the plunger disk (79). At this time, the strong magnetic disk (78) adsorbs the plunger, and the plunger disk (79) is reset by the spring. When the plunger disk (79) is reset, it impacts the pressure plate (624), and the convex point (623) on the pressure plate (624) squeezes the groove wall of the inner arc groove (622), so that the toggle disk (619) rotates clockwise, and the toggle disk (619) rotates clockwise. The arc groove (620) on the movable plate (619) pushes the tooth block (621) to move downward, so that the plurality of tooth blocks (621) are gathered toward the center of the circle of the movable plate (619), and the connection between the movable plate (619) and the outer gear (66) is released. At this time, the outer gear (66) is reset by the torsion spring, and the left tooth plate (612) and the right tooth plate (68) are reset, pulling the two sets of top plates (611) and the bottom plate (610) to move backward relative to each other, and the close fit clamping of the plunger is released. At this time, the material storage plate (63) is driven to move backward by the hydraulic telescopic rod (5), so that the plunger can be moved out of the material storage groove (64); S5. As the material storage tray (63) moves backward, the active pull rod (72) at one end of the hydraulic telescopic rod (5) has the same reset direction as the material storage tray (63). The active pull rod (72) pulls the driven pull plate (74) through the support plate (73). The pulling column (75) on the driven pull plate (74) pulls the connecting plate (76). Since the connecting plate (76) and the storage box (77) are at an inclined angle of 45 degrees, the connecting plate (76) can be deflected by 90 degrees through the pulling column (75), so that The storage box (77) is in an upward setting. At this time, the staff rotates the rotating ring (712), and the rotating ring (712) pulls the torsion spring, so that the semi-arc block (713) on the rotating ring (712) moves away from the pressing, and the pressing column (711) is reset by the spring, so that the tight block (710) and the plunger plate are released from the fit, and the plunger plate is released from the restriction. The staff can directly take out the plunger disk (79) filled with plungers and install a new plunger disk (79) to perform continuous plunger assembly operations.

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