CN114074903A

CN114074903A - Cap screwing device of filling equipment

Info

Publication number: CN114074903A
Application number: CN202010810342.5A
Authority: CN
Inventors: 王满华
Original assignee: Shanghai Saidone Technologies Co ltd
Current assignee: Shanghai Saidone Technologies Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2022-02-22

Abstract

The invention relates to a cap screwing device for filling equipment, which comprises at least two groups of cap screwing components, wherein each cap screwing component comprises a rotating shaft (9), a cap screwing wheel (8) is arranged at the lower end of the rotating shaft (9), a driven gear (3) is arranged at the upper part of the rotating shaft (9), the cap screwing device is characterized by further comprising a central gear (1), the central gear (1) is meshed with the driven gear (3), and the central gear (1) is driven by a single motor (10) so as to drive the at least two groups of cap screwing wheels (8) to rotate. The cap screwing device can be applied to filling equipment with small volume.

Description

Cap screwing device of filling equipment

Technical Field

The invention relates to filling equipment, in particular to a cap screwing device of the filling equipment.

Background

After filling the material into the bottle, the filling equipment often seals the bottle opening with a bottle cap. The conventional cap screwing device, as shown in fig. 1, includes a plurality of groups, for example, four groups of rubber wheels 40 for screwing the cap. The four sets of rubber wheels are driven by two motors 30, respectively, each motor driving two sets of rubber wheels.

The four rubber wheels move back and forth towards the center in a squeezing and loosening way. When the four wheels move outwards, the central space becomes larger, and the bottle cap to be screwed can enter the central position of the four small wheels, and the four wheels simultaneously rotate in the direction opposite to the screwing direction of the cap. When the four wheels move towards the center direction at the same time, the distance between the four wheels is reduced to hold the bottle cap tightly, and the bottle cap is driven to rotate towards the screwing direction together until the cap is screwed tightly.

However, the existing cap screwing device mechanism is large in size, applicable to a small range of cap screwing sizes, and difficult to use on small equipment.

Disclosure of Invention

The invention aims to provide a capping device with compact structure, which is suitable for filling equipment with small volume.

In order to solve the technical problem, the invention provides a cap screwing device for filling equipment, which comprises at least two groups of cap screwing components, wherein each cap screwing component comprises a rotating shaft, a cap screwing wheel is arranged at the lower end of the rotating shaft, a driven gear is arranged at the upper part of the rotating shaft, the cap screwing device also comprises a central gear, the central gear is meshed with the driven gear, and the central gear is driven by a single motor so as to drive the at least two groups of cap screwing wheels to rotate.

Preferably, each of the screw cap assemblies further comprises an intermediate gear, and the central gear is meshed with the driven gear through the intermediate gear.

Preferably, each spiral cover assembly further comprises a swinging block, the intermediate gear and the driven gear are arranged on the swinging block, and the swinging block can swing back and forth by taking the intermediate gear as an axis.

Preferably, the cap screwing device further comprises a groove disc, at least two grooves are formed in the groove disc, the rotating shafts penetrate through the grooves respectively, teeth are arranged on the periphery of the groove disc and are meshed with a rack, the rack is driven by a cylinder to reciprocate so as to rotate the groove disc, the rotating shafts can move along the grooves, and therefore the distance between the cap screwing wheels is adjusted.

Preferably, the rotating shaft is provided with a sliding sleeve, and the sliding sleeve is embedded in the groove.

Preferably, the grooves are radial from the center to the periphery.

Preferably, the grooves are helical.

Preferably, the screw cap assemblies are four groups, and the grooves are four.

Preferably, the motor is connected to a magnetic damping torque limiter via a reduction gearbox and then to the sun gear.

Preferably, the rotary cover wheel is a rubber wheel.

The invention has the advantages that:

1. the invention is driven by only a single motor, has smaller volume and lighter structure than the prior art, greatly reduces the volume and the weight, can be applied to tracking cap screwing machines, and can also be applied to desktop cap screwing machines.

2. The conveying screw adopting the three-point positioning mode can also be suitable for special-shaped bottles and packing materials, and a special conveying screw is not needed.

Drawings

Fig. 1 is a perspective view of a conventional cap screwing device.

Fig. 2 is a perspective view of the capping device of the present invention.

Fig. 3 is another perspective view of the capping device of the present invention.

Fig. 4 is a perspective view of the internal structure of the present invention.

FIG. 5 is another perspective view of the internal structure of the present invention

Detailed Description

Referring to fig. 1 to 4, the present invention is a cap screwing device for a filling apparatus. The capping device is driven by a single motor 10 and comprises at least two groups of capping assemblies, preferably four groups of capping assemblies in this embodiment. Each cap screwing component comprises a rotating shaft 9, a cap screwing wheel 8 is arranged at the lower end of the rotating shaft 9, and a driven gear 3 is arranged at the upper part of the rotating shaft 9. In this embodiment, the capping wheel 8 is made of rubber.

The motor 1 is connected to a magnetic damping torque limiter 12 through a reduction gearbox 11 and then to the sun gear 1. The central gear 1 is meshed with the driven gear 3, so that the at least two groups of the cover rotating wheels 8 are driven to rotate. The cap screwing assembly also comprises an intermediate gear 2, and the central gear 1 is meshed with a driven gear 3 through the intermediate gear 2. The intermediate gear 2 and the driven gear 3 are provided on a swing block 4, and the swing block 4 can swing back and forth with the intermediate gear 2 as an axis.

The cap screwing device further comprises a spiral groove disc 6, and at least two spiral grooves 6a, preferably four spiral grooves, are arranged on the spiral groove disc 6 and are in a radial shape from the center to the periphery. The rotating shafts 9 respectively penetrate through the spiral grooves 6a, the periphery of the spiral groove disk 6 is provided with teeth 6b, and the teeth 6b are meshed with the racks 7. The rack 7 is driven by the cylinder 13 to reciprocate so as to rotate the spiral groove disc 6, so that the rotating shaft 9 runs along the spiral groove 6a, and the distance between the cap screwing wheels 8 is adjusted so as to adapt to bottle caps with different sizes.

In order to facilitate the sliding of the rotating shaft 9 in the spiral groove 6a, the rotating shaft 9 is provided with a sliding sleeve 5, and the sliding sleeve 5 is embedded in the spiral groove 6 a.

Although the groove 6a is a spiral groove in the present embodiment, the present invention is not limited thereto, and other shapes of grooves may be applied.

The screw-on device furthermore has a housing 14 in which the oscillating mass 4, the sun gear 1, the intermediate gear 2 and the driven gear 3 are accommodated. The spiral fluted disc 6 emerges from the bottom of the housing. The cylinder 13 is mounted on the housing 14 by means of a bracket 15. The motor 1, the reduction gearbox 11 and the magnetic damping torque limiter 12 enter the shell 14 from above the shell 14 to be connected with the sun gear 1.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a spiral cover device for filling equipment, includes at least two sets of spiral cover subassemblies, and each spiral cover subassembly includes rotation axis (9), and install spiral cover wheel (8) the lower extreme of rotation axis (9), the upper portion of rotation axis (9) is provided with driven gear (3), its characterized in that still includes a sun gear (1), sun gear (1) with driven gear (3) mesh mutually, sun gear (1) are by single motor (10) drive, thereby drive at least two sets of spiral cover wheel (8) are rotatory.

2. A device according to claim 1, wherein each capping assembly further comprises an intermediate gear (2), the central gear (1) being in mesh with the driven gear (3) via the intermediate gear (2).

3. The capping device according to claim 2, wherein each capping assembly further comprises a swinging block (4), the intermediate gear (2) and the driven gear (3) are arranged on the swinging block (4), and the swinging block (4) can swing back and forth by taking the intermediate gear (2) as an axis.

4. The capping device according to any one of claims 1 to 3, further comprising a grooved disk (6), wherein at least two grooves (6a) are formed in the grooved disk (6), the rotary shafts (9) respectively pass through the grooves (6a), teeth (6b) are formed on the periphery of the grooved disk (6), the teeth (6b) are engaged with a rack (7), and the rack (7) is driven by a cylinder (13) to reciprocate to rotate the grooved disk (6) so that the rotary shafts (9) run along the grooves (6a) to adjust the interval between the capping wheels (8).

5. The screw cap device according to claim 4, wherein a sliding sleeve (5) is provided on the rotary shaft (9), and the sliding sleeve (5) is embedded in the groove (6 a).

6. The screw cap device according to claim 4, wherein the grooves (6a) are radial from the center to the periphery.

7. A screw-cap device according to claim 6, wherein the groove (6a) is helical.

8. The screw cap device according to claim 4, wherein the screw cap assembly is four groups and the slots (6a) are four.

9. A device according to any of claims 1-3, wherein the motor (1) is connected to a magnetic damping torque limiter (12) through a reduction gearbox (11) and then to the sun gear (1).

10. A device according to any one of claims 1 to 3, wherein the capping wheel (8) is a rubber wheel.