CN212832728U - Capping machine with high capping precision - Google Patents

Abstract

The utility model discloses a closing machine with gland precision is high relates to mechanical packaging technical field. The technical key points are as follows: the automatic bottle cap arranging and conveying device comprises a frame, be provided with the conveyer belt of carrying the bottle in the frame, the frame top is provided with reason lid hoisting device, it hangs the lid track to be connected with to fall to arrange to cover on the hoisting device, it is provided with one-level capping device to fall to cover the orbital the place ahead of hanging, one-level capping device includes carriage, motor, gland roller, be provided with two connecting plates along vertical direction on the carriage, the other one end and the connecting plate of gland roller rotate to be connected, be provided with two first deflectors, two along the horizontal direction on the carriage first deflector is located the below of gland roller and in the coplanar, discharge gate one side of one-level capping device is provided with second grade capping device. The utility model has the advantages of the gland precision is high.

Description

Capping machine with high capping precision

Technical Field

The utility model belongs to the technical field of the mechanical packaging technique and specifically relates to a closing machine with gland precision is high is related to.

Background

Along with the continuous progress of science and technology, the improvement of the living standard of people can relate to the process of packaging in many industrial productions, the bottle cap of a bottle is compressed to be an important link, and the manual bottle cap compression is replaced by many automatic assembly lines in the production nowadays, so that the manpower is saved, the efficiency of compressing the bottle cap is increased, and the cost is saved.

The utility model discloses a capping machine is disclosed in chinese utility model patent that publication number is CN205738201U, including the fuselage, frame and install the conveyer belt on the fuselage, the conveyer belt both sides all are equipped with the guardrail, the frame supports the gland subassembly that is located directly over the conveyer belt, the guardrail all slides the slide bar of the vertical setting of fixedly connected with, fuselage both sides rigid coupling has the latch segment, the latch segment is opened has the through-hole that supplies the slide bar to run through, the slide bar slides with the latch segment and is connected, the latch segment can be dismantled the mounting of fixedly connected with through the fixed slide bar of increase frictional force and latch segment.

The above prior art solution has the following drawbacks: when conveying the bottle on the conveyer belt, the conveyer belt can take place to rock, and the conveyer belt takes place to rock, leads to when bottle body capping, and the gland precision is low.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a closing machine with gland precision is high, it has the advantage that the gland precision is high.

The above object of the present invention can be achieved by the following technical solutions:

a capping machine with high capping precision comprises a machine frame, wherein a conveying belt for conveying bottle bodies is arranged on the machine frame, a cap arranging and lifting device is arranged above the machine frame, a cap falling and hanging rail is connected onto the cap arranging and lifting device, a first-stage capping device is arranged in front of the cap falling and hanging rail and comprises a supporting frame, a motor and a capping roller, the supporting frame is fixedly connected with the machine frame and positioned above the conveying belt, two connecting plates are arranged on the supporting frame along the vertical direction, a shell of the motor is fixedly connected with the connecting plates, a rotating shaft of the motor penetrates through the connecting plates and is coaxially and fixedly connected with one end of the capping roller, the other end of the capping roller is rotatably connected with the connecting plates, two first guide plates are arranged on the supporting frame along the horizontal direction and are positioned below the capping roller and in the same plane, and a second-stage capping device is arranged on one side of the discharge hole of the first-stage capping device.

By adopting the technical scheme, when the bottle body is capped, firstly, the bottle body is conveyed to the position below the cap arranging and lifting device through the conveying belt arranged on the rack, the cap arranging and lifting device lifts the bottle cap, the bottle cap is hung on the bottle through the cap falling and hanging track arranged on the bottle, the cap is capped through the primary capping device arranged on the rack, the motor on the connecting plate connected on the supporting frame is driven to rotate, the motor drives the capping roller to rotate after rotating, and the bottle is capped, but the bottle can shake when conveyed on the conveying belt and can be bent, therefore, when the bottle is conveyed to the capping roller through the conveying belt, the bottle neck is guided through the first guide plate arranged on the rack, so that the bottle cannot shake, the bottle is conveniently capped, and then the bottle which is well capped by the conveying belt and the capping device is conveyed to the secondary capping device again, the bottle is pressed by the second-stage pressing device again, so that the pressing precision is improved.

The present invention may be further configured in a preferred embodiment as: the first guide plate comprises a sleeve plate and an insertion plate, the sleeve plate is sleeved outside the insertion plate and is in sliding connection with the insertion plate, and a limiting assembly for limiting the sleeve plate and the insertion plate is arranged between the sleeve plate and the insertion plate.

Through adopting above-mentioned technical scheme, because the bottle has the size of different diameters, the diameter that leads to the bottleneck also can change, first conductor board can not play the guide effect to the bottle, consequently, the length of adjusting first deflector through relative slip between the lagging that is equipped with and picture peg is used for adapting to the bottle of different diameter size specifications, then lagging and picture peg are adjusted suitable position after, the position of limiting assembly through being equipped with lagging and picture peg is injectd, first deflector leads to the bottle on the conveyer belt, the bottle can not take place to rock, when capping the bottle, the gland precision is high.

The present invention may be further configured in a preferred embodiment as: spacing subassembly includes the spring catch, the spring catch is located the picture peg and is close to the lateral wall of lagging one end, the lagging is close to the one end inside wall of picture peg and has seted up a plurality ofly in proper order and spring catch complex recess, spring catch and recess elasticity joint.

Through adopting above-mentioned technical scheme, after the position that the lagging slides needs the direction with the picture peg, through spring catch and the recess cooperation that is equipped with, no longer take place relative slip this moment between lagging and the picture peg, can adjust the length of first deflector wantonly for adapt to the bottle of different specifications, simple structure, easily operation has increased the practicality of first deflector.

The present invention may be further configured in a preferred embodiment as: the supporting frame is provided with a sliding groove in the vertical direction, a sliding block is arranged in the sliding groove and is connected with the sliding groove in a sliding mode, one side of the sliding block is fixedly connected with one end of the sleeve plate far away from the inserting plate, and a lifting assembly for driving the first guide plate to lift is arranged on the rack.

Through adopting above-mentioned technical scheme, because when the high emergence of bottle changes, the height of bottleneck also can change, first deflector no longer suits to lead to the bottle, therefore, the lifting unit drive slider that is equipped with removes in the spout, thereby adjust the height of first deflector, make first deflector adapt to not co-altitude bottle, made things convenient for to lead to the bottle, after leading to the bottle, the bottle no longer receives the influence of conveyer belt shake and makes the bottle rock, not only increased the practicality of first deflector, and when capping, the gland precision is high to the bottle.

The present invention may be further configured in a preferred embodiment as: lifting unit includes the screw rod, frame lateral wall level is provided with the backup pad, the one end side that the picture peg was kept away from to the lagging is connected with the fixed block, the one end of screw rod is followed vertical direction setting and is connected with the bottom surface rotation of backup pad, the other one end of screw rod runs through the fixed block and rather than threaded connection, the one end that the backup pad was kept away from to the screw rod is provided with the hand wheel.

Through adopting above-mentioned technical scheme, when the first deflector of needs drive goes up and down, rotate the hand wheel, the hand wheel drives the screw rod and rotates, the screw rod drive with first deflector fixed connection's fixed block go up and down, the fixed block drives first deflector and goes up and down for the slider slides in the spout, at the in-process that first deflector goes up and down, rotation can not be followed to first deflector, simple structure, and easily operation has increased the practicality of first deflector.

The present invention may be further configured in a preferred embodiment as: the second grade capping device comprises a frame body, a capping belt is arranged on the frame body, the distance between the capping belt and the conveying belt gradually decreases from the feeding end to the discharging end of the capping belt, two second guide plates are arranged on the frame body along the horizontal direction, and the second guide plates are located below the capping belt.

Through adopting above-mentioned technical scheme, compress tightly the back with the bottle lid when one-level capping device, carry the bottle to second grade capping device below through the conveyer belt, compress tightly the bottle lid through the gland area that is equipped with, the second deflector that is equipped with on the support body plays the guide effect to the bottle for the bottle can not take place to rock at conveyer belt transportation process, has further improved the gland precision.

The present invention may be further configured in a preferred embodiment as: one end of the inserting plate, which is far away from the sleeve plate, is provided with a first arc-shaped plate, and convex surfaces of the first arc-shaped plate are oppositely arranged.

Through adopting above-mentioned technical scheme, because in the bottle transportation process, the bottle can take place the skew to conveyer belt both sides, leads to first deflector when the direction to the bottleneck, first deflector with block the removal of bottle, consequently, the first arc that is equipped with makes and plays the guide effect to the bottleneck, first deflector is to can not withstanding the bottle, is convenient for guide the bottle, during follow-up gland, the gland precision is high.

The present invention may be further configured in a preferred embodiment as: two second arc-shaped plates are arranged below the falling cover hanging cover rail, and the second arc-shaped plates are positioned on two sides of the conveying belt and are fixedly connected with the frame, and convex surfaces of the second arc-shaped plates are arranged oppositely.

Through adopting above-mentioned technical scheme, because in the bottle transportation process, the bottle can remove to the conveyer belt both sides, and the bottle is heavier, and first arc is only the direction to the bottleneck, but the bottle still is the skew, when one-level capping device was to the bottle gland, will press the bottle lid to one side, consequently, the position of bottle is corrected to the second arc that is equipped with for the bottle is in the conveyer belt intermediate position all the time, and when one-level capping device was to the bottle gland, the gland precision was high.

The present invention may be further configured in a preferred embodiment as: and the inserting plate is provided with scale marks.

Through adopting above-mentioned technical scheme, the scale mark that is equipped with on the picture peg for when adjusting the position of lagging and picture peg, more accurate need not the range estimation to go the distance of adjusting lagging and picture peg, when making first deflector to the bottle neck direction, more accurate, the precision of gland is higher.

To sum up, the utility model discloses a following at least one useful technological effect:

1. by arranging the first guide plate, when the bottle body passes below the capping roller, the bottle neck of the bottle body is guided by the first guide plate, so that the bottle does not shake any more, and the capping precision is high when the bottle is capped;

2. by arranging the sleeve plate, the plug board, the spring pin and the groove, when the diameter of the bottle is changed, the sleeve plate and the plug board slide relatively, after the sleeve plate and the plug board are adjusted to proper positions, the sleeve plate and the plug board are matched with the groove through the spring pin, the positions of the sleeve plate and the plug board are limited, the bottles with different specifications are guided, the practicability of the first guide plate is improved, and the capping precision of the capping machine is further improved;

3. through setting up screw rod, spout, slider, hand wheel, fixed block, because when the high emergence of bottle changes, rotate the hand wheel, the hand wheel drives the screw rod and rotates, and the screw rod drives the fixed block and goes up and down, and the fixed block drives and goes up and down rather than fixed connection's first deflector for the slider slides in the spout, and at the in-process that first deflector goes up and down, rotation can not be followed to first deflector, has increased the practicality of first deflector, has improved the gland precision of follow-up closing machine to the bottle lid.

Drawings

Fig. 1 is a schematic view of the overall structure of a capping machine with high capping accuracy according to the present embodiment;

FIG. 2 is a schematic view of the connection structure of the primary capping device;

FIG. 3 is an enlarged schematic view of portion A of FIG. 1;

fig. 4 is an enlarged schematic view of a portion B of fig. 1.

Reference numerals: 1. a frame; 2. a conveyor belt; 3. a cap arranging and lifting device; 4. a cover falling and hanging rail; 5. a support frame; 6. a motor; 7. a capping roller; 8. a connecting plate; 9. a first guide plate; 91. sheathing; 92. inserting plates; 10. a spring pin; 11. a groove; 12. a chute; 13. a slider; 14. a screw; 15. a support plate; 16. a fixed block; 17. a hand wheel; 18. a frame body; 19. pressing the cover tape; 20. a second guide plate; 21. a first arc-shaped plate; 22. a second arc-shaped plate; 23. scale lines are marked.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a capping machine with high capping precision disclosed by the utility model comprises a frame 1, a conveying belt 2 for conveying bottle bodies is rotatably connected on the frame 1, a cap arranging lifting device 3 is arranged above the frame 1, a cap falling and hanging rail 4 is connected on the cap arranging lifting device 3, a first-stage capping device is arranged in front of the cap falling and hanging rail 4, the first-stage capping device comprises a cuboid-shaped supporting frame 5, a motor 6 and a capping roller 7, the supporting frame 5 is welded with the frame 1 and is positioned above the conveying belt 2, two connecting plates 8 are arranged on the supporting frame 5 along the vertical direction, a shell of the motor 6 is fixedly connected with the connecting plates 8 through bolts, a rotating shaft of the motor 6 penetrates through the connecting plates 8 and is coaxial and welded with one end of the capping roller 7, the other end of the capping roller 7 is rotatably connected with the connecting plates 8, a first guide plate 9 is arranged on the supporting frame 5 along the horizontal direction, two first guide plates 9 are positioned below the capping rollers 7 and in the same plane, and a second-stage capping device is arranged on one side of a discharge port of the first-stage capping device.

When the bottle body is pressed, firstly, the bottle body is conveyed to the position below a cap arranging lifting device 3 through a conveying belt 2 arranged on a rack 1, the cap arranging lifting device 3 lifts the bottle cap, the bottle cap is hung on the bottle through a cap falling and hanging rail 4 arranged on the rack, the cap is pressed through a primary capping device arranged on the rack, a motor 6 on a connecting plate 8 connected on a supporting frame 5 is driven to rotate, a capping roller 7 is driven to rotate after the motor 6 rotates, the bottle is pressed and capped, but the bottle can shake when conveyed on the conveying belt 2 and can be bent, therefore, when the bottle is conveyed to the capping roller 7 position from the conveying belt 2, the neck of the bottle is guided through a first guide plate 9 arranged on the bottle, so that the bottle cannot shake, the bottle is conveniently pressed and then the bottle pressed and capped by the conveying belt 2 and the capping device is conveyed to a secondary capping device, the bottle is pressed by the second-stage pressing device again, so that the pressing precision is improved.

Since the height of the neck of the bottle changes when the height of the bottle changes, the first guide plate 9 is no longer adapted to guide the bottle, therefore, the supporting frame 5 is provided with a sliding groove 12 along the vertical direction, a sliding block 13 is arranged in the sliding groove 12, the sliding block 13 is connected with the sliding groove 12 in a sliding manner, one side of the sliding block 13 is welded with one end of the sleeve plate 91 far away from the inserting plate 92, the frame 1 is provided with a lifting component for driving the first guide plate 9 to lift, the lifting component is arranged for driving the sliding block 13 to move in the sliding groove 12, thereby adjusting the height of the first guide plate 9, leading the first guide plate 9 to adapt to the bottle bodies with different heights, facilitating the guidance of the bottle bodies, after the bottle is guided, the bottle no longer receives the influence that conveyer belt 2 trembled and makes the bottle rock, has not only increased the practicality of first deflector 9, when carrying out the gland to the bottle moreover, the gland precision is high. In this embodiment, lifting unit includes screw rod 14, and frame 1 lateral wall level is provided with backup pad 15, and the one end side that picture peg 92 was kept away from to lagging 91 is connected with fixed block 16, and the one end of screw rod 14 sets up along vertical direction and rotates with the bottom surface of backup pad 15 to be connected, and the other one end of screw rod 14 runs through fixed block 16 and rather than threaded connection, and the one end that backup pad 15 was kept away from to screw rod 14 is provided with hand wheel 17. When first deflector 9 of needs drive goes up and down, rotate hand wheel 17, hand wheel 17 drives screw rod 14 and rotates, and screw rod 14 drives the fixed block 16 with first deflector 9 fixed connection and goes up and down, and fixed block 16 drives first deflector 9 and goes up and down for slider 13 slides in spout 12, and at the in-process that first deflector 9 goes up and down, rotation can not be followed to first deflector 9, simple structure, and easily operation has increased the practicality of first deflector 9.

Because in the bottle transportation process, the bottle can remove to 2 both sides of conveyer belt, the bottle is heavier, first arc 21 is only the direction to the bottleneck, but the bottle still is the skew, when one-level capping device was to the bottle gland, will press the bottle lid to one side, consequently, the below of falling to cover and hanging lid track 4 is provided with two second arcs 22, second arc 22 is located the both sides of conveyer belt 2 and the relative setting of the convex surface of 1 welding of frame 1 and second arc 22, the position of the second arc 22 correction bottle that is equipped with, make the bottle be in 2 intermediate positions of conveyer belt all the time, when one-level capping device was to the bottle gland, the gland precision is high.

Referring to fig. 3, since the diameter of the bottle neck is changed due to the fact that the bottles have different diameters, and the first wire guide plate cannot guide the bottles, the first guide plate 9 includes a sleeve plate 91 and an insertion plate 92, the sleeve plate 91 is sleeved outside the insertion plate 92 and is slidably connected with the insertion plate 92, and a limiting assembly for limiting the sleeve plate 91 and the insertion plate 92 is disposed between the sleeve plate 91 and the insertion plate 92. The length of adjusting first deflector 9 through relative slip between lagging 91 and the picture peg 92 that is equipped with is used for adapting to the bottle of different diameters size and specification, then lagging 91 and picture peg 92 adjust suitable position after, prescribe a limit to the position of lagging 91 and picture peg 92 through the spacing subassembly that is equipped with, and first deflector 9 leads to the bottle on the conveyer belt 2, and the bottle can not take place to rock, when capping the bottle, and the gland precision is high. In this embodiment, spacing subassembly includes spring catch 10, spring catch 10 is located the lateral wall that picture peg 92 is close to lagging 91 one end, lagging 91 is close to the one end inside wall of picture peg 92 and has seted up a plurality ofly in proper order with spring catch 10 complex recess 11, spring catch 10 and recess 11 elastic clamping, after lagging 91 slides the position that needs the direction with picture peg 92, spring catch 10 and the cooperation of recess 11 through being equipped with, relative slip no longer takes place between lagging 91 and the picture peg 92 this moment, can adjust the length of first deflector 9 wantonly, be used for adapting to the bottle of different specifications, moreover, the steam generator is simple in structure, and is easy to operate, and the practicality of first deflector 9 is increased.

More accurate when guiding in order to the bottle, be provided with scale mark 23 on the picture peg 92, the scale mark 23 that is equipped with for when adjusting the position of lagging 91 and picture peg 92, more accurate, need not come to adjust the distance of lagging 91 and picture peg 92 with the eye-observation, when making first deflector 9 guide the bottleneck, more accurate, the precision of gland is higher.

Because in the bottle transportation process, the bottle can probably take place the skew to 2 both sides of conveyer belt, lead to first deflector 9 when leading to the bottleneck, first deflector 9 with block the removal of bottle, therefore, the one end that lagging 91 was kept away from to picture peg 92 is provided with first arc 21, the convex surface of first arc 21 sets up relatively, the first arc 21 that is equipped with makes and plays the guide effect to the bottleneck, first deflector 9 is to can not propping up the bottle, be convenient for lead to the bottle, during follow-up gland, the gland precision is high.

Referring to fig. 4, in this embodiment, the secondary capping device includes a frame body 18, a capping belt 19 is disposed on the frame body 18, a distance between the capping belt 19 and the conveying belt 2 gradually decreases from a feeding end to a discharging end of the capping belt 19, two second guide plates 20 are disposed on the frame body 18 along a horizontal direction, the second guide plates 20 are located below the capping belt 19, after the primary capping device compresses the bottle cap, the bottle is conveyed to a position below the secondary capping device through the conveying belt 2, the bottle cap is compressed through the capping belt 19, and the second guide plates 20 disposed on the frame body 18 play a role in guiding the bottle, so that the bottle does not shake during the conveying process of the conveying belt 2, and the capping precision is further improved.

The implementation principle of the embodiment is as follows: when the bottle body is pressed, firstly, the bottle body is conveyed to the position below a cover arranging lifting device 3 through a conveying belt 2 arranged on a rack 1, the cover arranging lifting device 3 lifts the bottle cover, the bottle cover is hung on the bottle through a cover falling and hanging rail 4 arranged, a second arc-shaped plate 22 is arranged to guide the bottle body so that the bottle body is always positioned at the middle position of the conveying belt 2, then, the pressing is carried out through a first-stage pressing device arranged, a motor 6 on a connecting plate 8 connected to a supporting frame 5 is driven to rotate, a pressing roller 7 is driven to rotate after the motor 6 rotates, the bottle is pressed, in order to prevent the bottle body from swinging on the conveying belt 2 in the conveying process, the bottle neck is corrected through a first arc-shaped plate 21 arranged, then, the bottle body is guided through a first guide plate 9 arranged, the first-stage pressing is carried out on the bottle body, and after the first-stage pressing is finished, the bottle body is conveyed to a second-stage pressing device through, carry out the secondary gland by gland area 19 to the bottle, the second deflector 20 that gland area 19 below was equipped with plays the guide effect to the bottle, and gland area 19 is more accurate to the bottle body capping, then the gland finishes, carries out subsequent operation, under first arc 21, second arc 22, first deflector 9, the combined action of second deflector 20, has improved the gland precision of closing machine.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. A capping machine with high capping precision comprises a machine frame (1), wherein a conveying belt (2) for conveying bottle bodies is arranged on the machine frame (1), a cap arranging and lifting device (3) is arranged above the machine frame (1), and a cap falling and hanging rail (4) is connected to the cap arranging and lifting device (3), and is characterized in that a first-stage capping device is arranged in front of the cap falling and hanging rail (4) and comprises a supporting frame (5), a motor (6) and a capping roller (7), the supporting frame (5) is fixedly connected with the machine frame (1) and is positioned above the conveying belt (2), two connecting plates (8) are arranged on the supporting frame (5) along the vertical direction, a shell of the motor (6) is fixedly connected with the connecting plates (8), a rotating shaft of the motor (6) penetrates through the connecting plates (8) and is coaxial and fixedly connected with one end of the capping roller (7), the other end of gland roller (7) rotates with connecting plate (8) to be connected, be provided with two first deflector (9) along the horizontal direction on carriage (5), two first deflector (9) are located the below of gland roller (7) and in the coplanar, discharge gate one side of one-level capping device is provided with the second grade capping device.

2. The capping machine with high capping precision according to claim 1, wherein the first guide plate (9) comprises a sleeve plate (91) and an insertion plate (92), the sleeve plate (91) is sleeved outside the insertion plate (92) and is slidably connected with the insertion plate (92), and a limiting assembly for limiting the sleeve plate (91) and the insertion plate (92) is arranged between the sleeve plate (91) and the insertion plate (92).

3. The capping machine with high capping precision according to claim 2, wherein the limiting assembly comprises a spring pin (10), the spring pin (10) is positioned on the outer side wall of one end of the inserting plate (92) close to the sleeve plate (91), a plurality of grooves (11) matched with the spring pin (10) are sequentially formed in the inner side wall of one end of the sleeve plate (91) close to the inserting plate (92), and the spring pin (10) is elastically clamped with the grooves (11).

4. The capping machine with high capping precision according to claim 2, wherein a sliding groove (12) is formed in the supporting frame (5) along a vertical direction, a sliding block (13) is arranged in the sliding groove (12), the sliding block (13) is connected with the sliding groove (12) in a sliding manner, one side of the sliding block (13) is fixedly connected with one end, away from the inserting plate (92), of the sleeve plate (91), and a lifting assembly for driving the first guide plate (9) to lift is arranged on the machine frame (1).

5. The capping machine with high capping precision according to claim 4, wherein the lifting assembly comprises a screw rod (14), a support plate (15) is horizontally arranged on the side wall of the machine frame (1), a fixing block (16) is connected to the side surface of one end, away from the inserting plate (92), of the sleeve plate (91), one end of the screw rod (14) is arranged in the vertical direction and is rotatably connected with the bottom surface of the support plate (15), the other end of the screw rod (14) penetrates through the fixing block (16) and is in threaded connection with the fixing block, and a hand wheel (17) is arranged at one end, away from the support plate (15), of the screw rod (14).

6. A capping machine with high capping precision according to claim 1, wherein the secondary capping device comprises a frame body (18), a capping belt (19) is arranged on the frame body (18), the distance between the capping belt (19) and the conveyor belt (2) is gradually reduced from the feeding end to the discharging end of the capping belt (19), two second guide plates (20) are arranged on the frame body (18) along the horizontal direction, and the second guide plates (20) are positioned below the capping belt (19).

7. A capping machine with high capping precision according to claim 2, wherein the end of the insert plate (92) remote from the sleeve plate (91) is provided with a first arc-shaped plate (21), and the convex surfaces of the first arc-shaped plate (21) are oppositely arranged.

8. The capping machine with high capping precision according to claim 1, wherein two second arc-shaped plates (22) are arranged below the cap falling and hanging rail (4), the second arc-shaped plates (22) are positioned at two sides of the conveyer belt (2) and fixedly connected with the frame (1), and convex surfaces of the second arc-shaped plates (22) are arranged oppositely.

9. A capping machine with high capping accuracy according to claim 2, wherein the insert plate (92) is provided with graduation marks (23).

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