CN218578132U

CN218578132U - Vacuum packaging machine for bearing ceramic balls

Info

Publication number: CN218578132U
Application number: CN202222713198.0U
Authority: CN
Inventors: 朱淑贞; 郑英姿
Original assignee: Taizhou Yourui Precision Technology Co ltd
Current assignee: Taizhou Yourui Precision Technology Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-03-07
Anticipated expiration: 2032-10-14

Abstract

The utility model discloses a vacuum packaging machine for bearing ceramic balls, which comprises a workbench, wherein the left side and the right side of the top of the workbench are connected with a top plate through a first electric telescopic rod, a storage box is arranged at the top of the top plate, and the bottom of the storage box is connected with a discharge hopper; sliding grooves are formed in the inner walls of the left side and the right side of the workbench, toothed plates are connected in the sliding grooves, pressing plates are integrally mounted at the end parts of the toothed plates, and exhaust pipes are mounted below the end surfaces of the pressing plates; second electric telescopic rods are arranged below the inner walls of the left side and the right side of the workbench, and the end parts of the second electric telescopic rods are connected with heat sealing heads; the internal bearing of the discharge hopper is connected with a discharge disc. This a vacuum packaging machine for bearing ceramic ball can carry out automatic discharging and automatic transport during the use, and can carry out vacuum packaging automatically and handle, and the power consumption equipment that whole equipment used is few, compact structure, and degree of automation is high.

Description

Vacuum packaging machine for bearing ceramic balls

Technical Field

The utility model relates to a vacuum packaging machine technical field specifically is a vacuum packaging machine for bearing ceramic ball.

Background

The bearing is one of common parts of mechanical equipment and is used for bearing load when the mechanical part runs, the common bearing mainly comprises a bearing ring, a mounting frame and a ball body, the ball body is of different types, ceramic balls are one of the ball bodies, and the bearing ceramic balls need to be subjected to vacuum packaging in the production process and then use a vacuum packaging machine;

in a full-automatic packaging machine for high-speed precise bearing steel balls disclosed in the publication No. CN205906237U, the steel balls to be packaged are placed in a storage bin, a packaging box is placed on a conveyor belt, the position of the packaging box is detected through an automatic positioning system, when the packaging box reaches the position below a feeding pipeline, the conveyor belt stops conveying, the steel balls in the storage bin respectively fall into a fast-supply receiving tray and a fine-supply receiving tray from a fast-supply discharging port and a fine-supply discharging port, the materials in the fast-supply receiving tray and the fine-supply receiving tray are driven by a vibration feeder to vibrate and discharge, the fast-supply receiving tray and the fine-supply receiving tray in the same group are vibrated into a metering hopper, then a corresponding cache hopper is driven by a driving cylinder to be positioned below the metering hopper, a material baffle plate positioned below the metering hopper is opened, the materials in the metering hopper fall into the cache hopper, then the corresponding cache hopper is driven by the driving cylinder to be moved to the position above the feeding pipeline, then the material baffle plate positioned below the cache hopper is opened, and the materials in the cache hopper are fed into the prepared packaging box in advance through the feeding pipeline;

however, in the using process of the scheme, in the processes of blanking, packaging, conveying and the like, the scheme needs to be matched with a plurality of driving sources for use, the energy consumption is high, and the packaging need to be carried out separately, so that the time consumption is long.

We have therefore proposed a vacuum packing machine for bearing ceramic balls in order to solve the problems set forth above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vacuum packaging machine for bearing ceramic ball to solve the in-process that vacuum packaging machine of current bearing ceramic ball was using on the existing market that above-mentioned background art provided, at in-process such as unloading, packing, transport, need cooperate a plurality of driving sources to use, the power consumption is great, and packing and encapsulation need separately go on, problem of a long time consuming.

In order to achieve the above object, the utility model provides a following technical scheme: a vacuum packaging machine for bearing ceramic balls comprises a workbench, wherein the left side and the right side of the top of the workbench are connected with a top plate through first electric telescopic rods, a storage box is mounted at the top of the top plate, the bottom of the storage box is connected with a discharge hopper, and the discharge hopper penetrates through the middle of the bottom surface of the top plate;

further comprising:

the front side and the rear side of the middle part of the top surface of the workbench are symmetrically provided with driving rollers, conveying belts are sleeved outside the driving rollers, and bottom supports and plastic packaging bags are arranged on the conveying belts at equal intervals and used for receiving ceramic balls;

sliding grooves are formed in the inner walls of the left side and the right side of the workbench, toothed plates are connected in the sliding grooves, pressing plates are integrally mounted at the end parts of the toothed plates, exhaust pipes are mounted below the end surfaces of the pressing plates, and meanwhile the exhaust pipes on the left side and the right side are connected with exhaust pumps symmetrically mounted at the tops of the top plates through connecting pipes;

second electric telescopic rods are arranged below the inner walls of the left side and the right side of the workbench, and the end parts of the second electric telescopic rods are connected with heat sealing heads for sealing the plastic packaging bags;

the internal bearing of the discharge hopper is connected with a discharge disc for discharging ceramic balls.

Preferably, the bilateral symmetry of roof bottom is fixed with first stay cord, and the bottom of first stay cord is around establishing on the horizontal pole to horizontal pole symmetry bearing connects in the inside of workstation left and right sides wall, installs first torsional spring between horizontal pole and the workstation moreover, and the horizontal pole constitutes reciprocal rotating-structure through first stay cord and first torsional spring simultaneously, makes first stay cord drive horizontal pole rotate the back, and the horizontal pole will overturn the torsional spring.

Preferably, the end part of the cross rod is sleeved with a reciprocating screw rod, a first ratchet assembly is installed between the reciprocating screw rod and the cross rod, the reciprocating screw rod is connected inside the sliding groove in a bearing mode, the reciprocating screw rod forms a one-way rotating structure through the cross rod and the first ratchet assembly, and meanwhile the outer side of the reciprocating screw rod is in threaded connection with a toothed plate, so that after the cross rod drives the reciprocating screw rod to rotate through the first ratchet assembly, the reciprocating screw rod can drive the toothed plate to move in the sliding groove.

Preferably, the meshing of the below of pinion rack is connected with the gear, and the embedded connection of gear is in the workstation left and right sides inner wall to the middle part of gear link up the cover and is equipped with first vertical pole, and first vertical pole bearing is connected in the workstation left and right sides inner wall moreover, installs the second ratchet subassembly between gear and the first vertical pole simultaneously, makes the pinion rack remove the back and will drive gear revolve, and the gear will drive first vertical pole through first ratchet subassembly and rotate.

Preferably, the front side of the first longitudinal rod is connected with the second longitudinal rod below through a chain wheel mechanism, the second longitudinal rod is connected to the left side and the right side of the inner wall of the workbench through a second longitudinal rod bearing, the front side of the second longitudinal rod is connected with the driving roller through a bevel gear connecting piece, and the driving roller drives the conveying belt to rotate synchronously, so that after the first longitudinal rod drives the second longitudinal rod to rotate, the second longitudinal rod drives the driving roller to rotate through the bevel gear connecting piece.

Preferably, the second stay cord is installed at the left side top of workstation, and the top of second stay cord is connected with the third vertical pole to the third vertical pole bearing is connected in the rear side of going out the hopper, installs the second torsional spring in addition between third vertical pole and the play hopper, and the third vertical pole constitutes reciprocal rotating-structure through second stay cord and second torsional spring simultaneously, makes the second stay cord drive the rotation of third vertical pole, and the second torsional spring will reverse.

Preferably, the outer side of the third longitudinal rod is connected with the central shaft of the discharge disc through a third ratchet wheel assembly, and the discharge disc forms a quantitative discharge structure through the third longitudinal rod and the third ratchet wheel assembly, so that the third longitudinal rod can drive the discharge disc to rotate through the third ratchet wheel assembly after rotating, and the discharge disc can automatically discharge ceramic balls quantitatively.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the vacuum packaging machine for the bearing ceramic balls, when the top is driven to move downwards through the arranged first electric telescopic rod, the second pull rope is in a loosening state, the second torsion spring which rotates reversely can drive the third longitudinal rod to rotate, the third longitudinal rod can drive the discharge disc to rotate through the third ratchet wheel assembly after rotating, and then quantitative ceramic balls are put into the plastic package bag below, so that automatic discharging is achieved;

2. according to the vacuum packaging machine for the bearing ceramic balls, when a top plate moves upwards, a first electric telescopic rod drives the top to move in a segmented mode, when the top moves upwards for a half, the top stops, a first pull rope is pulled, the first pull rope can drive a first longitudinal rod to rotate and further reverse a first torsion spring, at the moment, a first ratchet wheel assembly is in a meshing state and further drives a reciprocating lead screw to rotate, the reciprocating lead screw rotates and then drives a toothed plate and a pressing plate to stretch out, the top of a plastic package bag is further compressed and closed, an exhaust pipe extends into a reserved hole of the plastic package bag, then the plastic package bag is vacuumized through an exhaust pump, a second electric telescopic rod drives a heat sealing head to seal the plastic package bag, then the top plate moves upwards continuously, the reciprocating lead screw rotates continuously, and the pressing plate can be separated and further convenient to use next time;

3. this a vacuum packaging machine for bearing ceramic ball, when the pinion rack moves back, the pinion rack can drive gear revolve, and the gear will drive first vertical pole through second ratchet subassembly and rotate, drives the rotation of second vertical pole through sprocket mechanism after first vertical pole rotates, and the second vertical pole passes through the awl tooth connecting piece and drives the drive roller rotation to drive the conveyer belt and carry out autoloading, thereby make whole flow, the power consumption is little, and degree of automation is high.

Drawings

FIG. 1 is a schematic view of the overall front-cut structure of the present invention;

FIG. 2 is a schematic view of the overall working state of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

FIG. 4 is an enlarged schematic view of the structure of FIG. 2;

fig. 5 is a schematic view of the side-cut structure of the second pull rope, the third vertical rod and the discharge tray.

In the figure: 1. a work table; 2. a first electric telescopic rod; 3. a top plate; 4. a storage tank; 5. a discharge hopper; 6. a first pull cord; 7. a cross bar; 8. a first torsion spring; 9. a first ratchet assembly; 10. a reciprocating screw rod; 11. a chute; 12. a toothed plate; 13. pressing a plate; 14. an exhaust pipe; 15. an air pump; 16. a gear; 17. a first longitudinal bar; 18. a second ratchet assembly; 19. a second longitudinal bar; 20. a drive roller; 21. a conveyor belt; 22. a bottom support; 23. plastic packaging the bag; 24. a second electric telescopic rod; 25. heat sealing; 26. a second pull cord; 27. a third longitudinal bar; 28. a second torsion spring; 29. a third ratchet assembly; 30. a discharging disc.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a vacuum packaging machine for bearing ceramic balls comprises a workbench 1, wherein the left side and the right side of the top of the workbench 1 are connected with a top plate 3 through first electric telescopic rods 2, a storage box 4 is installed at the top of the top plate 3, the bottom of the storage box 4 is connected with a discharge hopper 5, and the discharge hopper 5 is connected to the middle of the bottom surface of the top plate 3 in a penetrating manner; further comprising: the front side and the rear side of the middle of the top surface of the workbench 1 are symmetrically provided with driving rollers 20, a conveying belt 21 is sleeved outside the driving rollers 20, bottom bases 22 and plastic package bags 23 are equidistantly placed on the conveying belt 21, the plastic package bags 23 are used for receiving ceramic balls, second electric telescopic rods 24 are respectively installed below the inner walls of the left side and the right side of the workbench 1, the end portions of the second electric telescopic rods 24 are connected with heat sealing heads 25 and used for sealing the plastic package bags 23, as shown in fig. 1, firstly, the whole using process is introduced, the driving rollers 20 are arranged at the top of the workbench 1, the driving rollers 20 drive the conveying belt 21 to operate, the bottom bases 22 are equidistantly placed on the conveying belt 21, the plastic package bags 23 are respectively placed on the bottom bases 22 and used for loading the ceramic balls, the first electric telescopic rods 2 can drive the top plate 3 to move up and down, when the top plate 3 moves down, the ceramic balls in the storage box 4 can be quantitatively discharged through the discharge hopper 5 and then placed in the plastic package bags 23, when the top plate 3 moves up, the top plate 13 can tightly press the top of the bag 23 to seal, then the extraction pipe 14 can extend into the extraction opening on the plastic package bags 23, air can be extracted, the second extraction opening of the second electric telescopic belt 24 and then can be moved below the plastic package bags 21 to seal the plastic package bags 23, and then the plastic package bags 21 can be sealed plastic package bags 21;

a second pull rope 26 is installed at the top of the left side of the workbench 1, the top of the second pull rope 26 is connected with a third longitudinal rod 27, the third longitudinal rod 27 is connected to the rear side of the discharge hopper 5 in a bearing mode, a second torsion spring 28 is installed between the third longitudinal rod 27 and the discharge hopper 5, meanwhile, the third longitudinal rod 27 forms a reciprocating rotation structure through the second pull rope 26 and the second torsion spring 28, the outer side of the third longitudinal rod 27 is connected with the central shaft of the discharge tray 30 through a third ratchet assembly 29, the discharge tray 30 forms a quantitative discharge structure through the third longitudinal rod 27 and the third ratchet assembly 29, the discharge tray 30 is connected to an internal bearing of the discharge hopper 5 and used for discharging ceramic balls, as shown in fig. 1-2 and 5, when the top plate 3 is driven to move downwards by the first electric telescopic rod 2, the second pull rope 26 is in a relaxed state, when the second torsion spring 28 in an initial state is in a reverse rotation state, the third longitudinal rod 27 drives the discharge tray 30 to rotate, when the third longitudinal rod 27 rotates, the discharge tray 30 does not rotate, and then the discharge tray 30 does not rotate when the third longitudinal rod 27 rotates, the discharge tray 30 rotates, and the discharge tray 30 does not rotate;

first pull ropes 6 are symmetrically fixed on the left side and the right side of the bottom of the top plate 3, the bottom of each first pull rope 6 is wound on a cross rod 7, the cross rod 7 is symmetrically and bearing-connected to the inner parts of the left side wall and the right side wall of the workbench 1, a first torsion spring 8 is installed between the cross rod 7 and the workbench 1, the cross rod 7 forms a reciprocating rotation structure through the first pull ropes 6 and the first torsion spring 8, a reciprocating lead screw 10 is sleeved and connected to the end part of the cross rod 7, a first ratchet wheel assembly 9 is installed between the reciprocating lead screw 10 and the cross rod 7, the reciprocating lead screw 10 is bearing-connected to the inner part of the sliding groove 11, the reciprocating lead screw 10 forms a unidirectional rotation structure through the cross rod 7 and the first ratchet wheel assembly 9, a toothed plate 12 is in threaded connection with the outer side of the reciprocating lead screw 10, sliding grooves 11 are formed in the inner walls of the left side and the right side of the workbench 1, a toothed plate 12 is connected in the sliding groove 11, and a pressing plate 13 is integrally installed at the end part of the toothed plate 12, and the lower part of the end surface of the pressing plate 13 is provided with the air exhaust pipes 14, and the air exhaust pipes 14 on the left and right sides are respectively connected with the air exhaust pumps 15 symmetrically arranged on the top of the top plate 3 through connecting pipes, as shown in fig. 1-4, when the top plate 3 moves upwards, the top plate 3 is divided into 2 stages, when the top plate 3 rises to half height, the first pull rope 6 is pulled to further drive the cross rod 7 to rotate, the cross rod 7 rotates to reversely rotate the first torsion spring 8, and the cross rod 7 rotates to drive the reciprocating screw rod 10 to rotate through the first ratchet assembly 9, the reciprocating screw rod 10 rotates to drive the toothed plate 12 to extend out of the chute 11, when the toothed plate 12 moves, the pressing plate 13 is driven to synchronously move, and then the pressing plates 13 on the two sides move relatively to further press and seal the top of the plastic package bag 23, when the pressing plates 13 press, the air exhaust pipes 14 extend into the plastic package bag 23, then the air pump 15 is started, the air exhaust pipe 14 can exhaust air in the plastic package bag 23, so that the ceramic balls are subjected to vacuum packaging, then the second electric telescopic rod 24 can drive the heat sealing head 25 to move relatively, the packaged plastic package bag 23 is sealed, after sealing is completed, the second electric telescopic rod 24 drives the heat sealing head 25 to reset, then the top plate 3 continues to move upwards, the reciprocating screw rod 10 can drive the toothed plate 12 to be retracted into the sliding groove 11, the pressing plate 13 can be separated, and therefore a vacuum packaging operation flow is completed;

the lower portion of the toothed plate 12 is connected with a gear 16 in a meshed manner, the gear 16 is connected to inner walls of the left side and the right side of the workbench 1 in an embedded manner, a first longitudinal rod 17 penetrates through the middle of the gear 16 and is sleeved with the middle of the gear 16, the first longitudinal rod 17 is connected to the inner walls of the left side and the right side of the workbench 1 in a bearing manner, meanwhile, a second ratchet assembly 18 is installed between the gear 16 and the first longitudinal rod 17, the front side of the first longitudinal rod 17 is connected with a second longitudinal rod 19 below through a chain wheel mechanism, the second longitudinal rod 19 is connected to the left side and the right side of the inner wall of the workbench 1 in a bearing manner, the front side of the second longitudinal rod 19 is connected with a driving roller 20 through a conical tooth connecting piece, the driving roller 20 drives the conveying belt 21 to synchronously rotate, as shown in fig. 1-3, when the toothed plate 12 returns to the chute 11, the toothed plate 12 drives the gear 16 below to rotate, the gear 16 after the gear 16 rotates, the ratchet assembly 18 drives the first longitudinal rod 17 to rotate, the driving roller 20 to drive the driving roller 20 to rotate, when the first longitudinal rod 17 rotates, the conveying roller 17 to convey ceramic balls to be packaged, and further transport the ceramic balls to be processed, and then the ceramic discharge hopper 5 to be processed.

The working principle is as follows: when the vacuum packaging machine for bearing ceramic balls is used, as shown in fig. 1-5, first, when the first electric telescopic rod 2 drives the top plate 3 to move downwards, the second pull rope 26 is loosened, the second torsion spring 28 drives the third longitudinal rod 27 to rotate, the third longitudinal rod 27 drives the discharge tray 30 to rotate through the third ratchet assembly 29, the discharge tray 30 automatically discharges the ceramic balls, the ceramic balls fall in the plastic packaging bag 23, when the top plate 3 moves upwards, the second pull rope 26 is tightened, the third longitudinal rod 27 rotates, at this time, the third ratchet assembly 29 is in a non-meshed state, the discharge tray 30 does not rotate, when the top plate 3 rises to half height, the first pull rope 6 is pulled to drive the cross rod 7 to rotate, the first torsion spring 8 rotates reversely, the first ratchet assembly 9 drives the reciprocating screw rod 10 to rotate, the reciprocating screw rod 10 drives the toothed plate 12 to extend out of the chute 11, the toothed plate 12 drives the pressing plate 13 to synchronously move, the pressing plates 13 on both sides move relatively, thereby compressing the top of the plastic packaging bag 23, when the pressing plate 13 compresses, the pressing plate 13, the pressing plate 14 drives the air suction screw rod 10 to extend into the plastic packaging bag 12 to drive the vacuum packaging bag 12 to move, and then the vacuum packaging bag 16, the vacuum packaging bag 14, the vacuum packaging head to move to drive the plastic packaging bag 16, and then drive the vacuum packaging bag 23 to move to the plastic packaging bag, and drive the vacuum packaging head to move to the plastic packaging bag 16, the first vertical rod 17 can drive the second vertical rod 19 below to rotate through the chain wheel component when rotating, the second vertical rod 19 can drive the driving roller 20 to rotate through the bevel gear connecting piece after rotating, the driving roller 20 can drive the conveying belt 21 to run, the packaged ceramic balls are conveyed away, the ceramic balls to be processed are conveyed to the position under the discharge hopper 5, and packaging processing is continued, so that a series of work is completed.

Those not described in detail in this specification are well within the skill of the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A vacuum packaging machine for bearing ceramic balls comprises a workbench (1), wherein the left side and the right side of the top of the workbench (1) are connected with a top plate (3) through first electric telescopic rods (2), a storage box (4) is installed at the top of the top plate (3), the bottom of the storage box (4) is connected with a discharge hopper (5), and the discharge hopper (5) is connected to the middle of the bottom surface of the top plate (3) in a penetrating manner;

the method is characterized in that: further comprising:

the front side and the rear side of the middle part of the top surface of the workbench (1) are symmetrically provided with driving rollers (20), a conveying belt (21) is sleeved outside the driving rollers (20), a bottom support (22) and a plastic packaging bag (23) are arranged on the conveying belt (21) at equal intervals, and the plastic packaging bag (23) is used for bearing ceramic balls;

the inner walls of the left side and the right side of the workbench (1) are respectively provided with a sliding chute (11), a toothed plate (12) is connected in the sliding chute (11), a pressing plate (13) is integrally installed at the end part of the toothed plate (12), air exhaust pipes (14) are installed below the end surface of the pressing plate (13), and meanwhile, the air exhaust pipes (14) on the left side and the right side are respectively connected with air exhaust pumps (15) symmetrically installed at the top of the top plate (3) through connecting pipes;

second electric telescopic rods (24) are respectively arranged below the inner walls of the left side and the right side of the workbench (1), and the end parts of the second electric telescopic rods (24) are connected with heat sealing heads (25) for sealing the plastic packaging bags (23);

the inner bearing of the discharge hopper (5) is connected with a discharge disc (30) for discharging ceramic balls.

2. The vacuum packing machine for ceramic balls for bearings according to claim 1, wherein: the left and right sides symmetry of roof (3) bottom is fixed with first stay cord (6), and the bottom of first stay cord (6) is around establishing on horizontal pole (7) to horizontal pole (7) symmetry bearing is connected in the inside of workstation (1) left and right sides wall, installs first torsion spring (8) moreover between horizontal pole (7) and workstation (1), and horizontal pole (7) constitute reciprocal revolution mechanic through first stay cord (6) and first torsion spring (8) simultaneously.

3. The vacuum packing machine for bearing ceramic balls according to claim 2, characterized in that: the tip cover of horizontal pole (7) is established and is connected with reciprocal lead screw (10), and installs first ratchet subassembly (9) between reciprocal lead screw (10) and horizontal pole (7) to reciprocal lead screw (10) bearing connection is in the inside of spout (11), and reciprocal lead screw (10) constitute unidirectional rotation structure through horizontal pole (7) and first ratchet subassembly (9) moreover, and the outside threaded connection of reciprocal lead screw (10) has pinion rack (12) simultaneously.

4. The vacuum packing machine for bearing ceramic balls according to claim 1, characterized in that: the below meshing of pinion rack (12) is connected with gear (16), and gear (16) embedded connection in workstation (1) left and right sides inner wall to the middle part of gear (16) link up the cover and are equipped with first vertical pole (17), and first vertical pole (17) bearing connection is in workstation (1) left and right sides inner wall moreover, installs second ratchet subassembly (18) between gear (16) and first vertical pole (17) simultaneously.

5. The vacuum packing machine for ceramic balls for bearings according to claim 4, wherein: the front side of the first longitudinal rod (17) is connected with a second longitudinal rod (19) below through a chain wheel mechanism, the second longitudinal rod (19) is in bearing connection with the left side and the right side of the inner wall of the workbench (1), the front side of the second longitudinal rod (19) is connected with the driving roller (20) through a bevel gear connecting piece, and the driving roller (20) drives the conveying belt (21) to synchronously rotate.

6. The vacuum packing machine for ceramic balls for bearings according to claim 1, wherein: a second pull rope (26) is installed at the top of the left side of the workbench (1), the top of the second pull rope (26) is connected with a third longitudinal rod (27), the third longitudinal rod (27) is connected to the rear side of the discharging hopper (5) in a bearing mode, a second torsion spring (28) is installed between the third longitudinal rod (27) and the discharging hopper (5), and meanwhile the third longitudinal rod (27) forms a reciprocating rotation structure through the second pull rope (26) and the second torsion spring (28).

7. The vacuum packing machine for ceramic balls for bearings according to claim 6, wherein: the outer side of the third longitudinal rod (27) is connected with the central shaft part of the discharging disc (30) through a third ratchet wheel assembly (29), and the discharging disc (30) forms a quantitative discharging structure through the third longitudinal rod (27) and the third ratchet wheel assembly (29).