A cap screwing machine gripper

By installing a corrugated pipe over the air supply pipe of the capping machine and reinforcing the support structure, the problems of air supply pipe sagging and external influences were solved, thus improving the stability and reliability of the equipment.

CN224394558UActive Publication Date: 2026-06-23SHANGHAI MOHAO INTELLIGENT EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI MOHAO INTELLIGENT EQUIPMENT CO LTD
Filing Date
2025-07-10
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The air supply pipe of a traditional capping machine is prone to drooping and being exposed to the outside, which makes the equipment inconvenient to use and causes damage to the air supply pipe, affecting the reliability and stability of the equipment.

Method used

A corrugated pipe is fitted over the gas supply pipe and fixed with a fixing component. The support capacity is enhanced by a spiral steel wire ring, and a protective layer and a detachable connection structure are provided to protect the gas supply pipe.

Benefits of technology

It effectively prevents the gas supply pipe from sagging, reduces the impact of the external environment on the gas supply pipe, extends its service life, improves the reliability and stability of the equipment, and reduces maintenance costs.

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Abstract

The application relates to the technical field of cap screwing machines, and provides a cap screwing machine gripper, which comprises a mounting base, a rotating shaft rotatably connected to the mounting base, a driving piece arranged on the mounting base and used for driving the rotating shaft to rotate, a cap screwing cylinder arranged below the rotating shaft, a pneumatic clamping jaw arranged below the cap screwing cylinder, and a gas supply pipe used for supplying gas to the pneumatic clamping jaw, a protection mechanism is arranged outside the gas supply pipe, the protection mechanism comprises a bellows sleeved outside the gas supply pipe and a fixing assembly used for mounting the bellows to the gas supply pipe. The application has the beneficial effect of reducing the falling phenomenon of the gas supply pipe and making the equipment more convenient to use.
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Description

Technical Field

[0001] This application relates to the technical field of capping machines, and in particular to a capping machine gripper. Background Technology

[0002] A capping machine is a device mainly used to tighten caps on plastic bottles, glass bottles, etc. The traditional type is a robotic arm capping machine. When working, the robotic arm grabs the cap and screws it onto the bottle mouth. Its main working process is to clamp the cap, move it to the bottle body, and screw it on.

[0003] Traditional bottle cap clamping uses pneumatic grippers, which require an external air supply. However, the air supply pipe that supplies air to the cylinder is usually exposed, and the air supply pipe is usually made of soft material. As the grippers are activated, the caps are prone to falling off, which makes the equipment inconvenient to use. Therefore, further improvements are needed. Utility Model Content

[0004] To address the above problems, this application provides a capping machine gripper.

[0005] This application provides a capping machine gripper, which adopts the following technical solution:

[0006] A capping machine gripper includes a mounting base, a rotating shaft rotatably connected to the mounting base, a driving component disposed on the mounting base for driving the rotating shaft to rotate, a capping cylinder disposed below the rotating shaft, a pneumatic gripper disposed below the capping cylinder, and an air supply pipe for supplying air to the pneumatic gripper. A protective mechanism is provided outside the air supply pipe, the protective mechanism including a corrugated pipe sleeved outside the air supply pipe and a fixing component for installing the corrugated pipe onto the air supply pipe.

[0007] By adopting the above technical solution, the corrugated pipe is sleeved outside the air supply pipe and fixed by the fixing component, which can provide strong support for the soft and easily sagging air supply pipe, reduce the sagging phenomenon of the air supply pipe, and make the equipment more convenient to use. At the same time, it can effectively block the influence of external factors on the air supply pipe, such as dust and moisture, protect the air supply pipe from external environmental interference, extend the service life of the air supply pipe, and improve the reliability and stability of the entire capping machine gripper.

[0008] Preferably, a spiral steel wire ring is embedded inside the corrugated pipe.

[0009] By adopting the above technical solution, embedding a spiral steel wire ring inside the corrugated pipe can further enhance the support capacity of the corrugated pipe, better reduce the possibility of the gas supply pipe sagging, and improve the structural strength and stability of the corrugated pipe.

[0010] Preferably, the corrugated pipe is detachably connected to the gas supply pipe.

[0011] By adopting the above technical solution, since some corrugated pipes are installed later, in order to reduce the need to disassemble the air supply pipe and then install the corrugated pipe on the hose, the corrugated pipe can be detachably connected to the arched pipe.

[0012] Preferably, the corrugated pipe has a through groove on its outer side, the through groove is provided along the entire length of the corrugated pipe, the corrugated pipe is provided with a connector, the connector is used to connect the sides located on both sides of the through groove, and a plurality of connectors are provided at intervals along the length of the corrugated pipe.

[0013] By adopting the above technical solution, based on the original method of using corrugated pipes to wrap gas supply pipes to reduce sagging and the impact of the external environment, the corrugated pipes can be easily fitted onto the outside of the gas supply pipes through the grooves, and the two sides of the grooves are connected by connectors to form a ring-shaped wrapping structure. At the same time, multiple spaced connectors can ensure the firmness of the wrapping.

[0014] Preferably, the connector includes connecting plates disposed on both sides of the through groove and a connecting bolt passing through one of the connecting plates, and the other connecting plate has a threaded hole for threaded connection of the connecting bolt.

[0015] By adopting the above technical solution, connecting plates and connecting bolts are used as connecting parts to connect the two sides of the through groove, so that the corrugated pipe can be detachably connected to the air supply pipe, which facilitates the maintenance and replacement of the air supply pipe or the corrugated pipe.

[0016] Preferably, the corrugated pipe is located on both sides of the through groove as a connecting part, with one connecting part partially covering the other connecting part.

[0017] By adopting the above technical solution, one connection part partially covers another connection part, which can enhance the sealing performance of the corrugated pipe wrapping, better protect the gas supply pipe and reduce the impact of the external environment.

[0018] Preferably, the fixing component includes a limiting ring fixedly sleeved on the outside of the hose, a retaining plate disposed on the inner wall of the corrugated pipe, and a fixing member for fixing the retaining plate on the limiting ring. There are two limiting rings respectively disposed at both ends of the hose, and the retaining plate has a retaining groove for the limiting ring to be engaged.

[0019] By adopting the above technical solution, limiting rings are fixedly sleeved at both ends of the hose, which are engaged with the slots of the clamping plates on the inner walls of both ends of the corrugated pipe. Combined with the fixing components, the corrugated pipe can be installed more stably on the air supply pipe, reducing the possibility of the corrugated pipe shifting or falling off, and further enhancing the support and protection effect on the air supply pipe.

[0020] Preferably, the connector is a self-locking cable tie.

[0021] By adopting the above technical solution, the self-locking cable ties are easier to operate than bolts, which can improve the flexibility and convenience of protecting the gas supply pipe.

[0022] Preferably, the protection mechanism further includes a protective layer disposed within the bellows.

[0023] By adopting the above technical solution, a protective layer is provided to reduce the contact between the corrugated pipe and the air supply hose, thus reducing the possibility of wear.

[0024] In summary, this application has the following beneficial effects:

[0025] The corrugated pipe wraps around the air supply pipe, providing support for the air supply pipeline, reducing the air supply pipe from sagging, making the capping machine work more smoothly, reducing the impact of the external environment, lowering the risk of damage to the air supply pipe, reducing interference between the air supply pipe and surrounding equipment or objects, reducing equipment maintenance costs, and facilitating the overall use and management of the equipment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0027] Figure 2 yes Figure 1 A magnified view of part A in the middle;

[0028] Figure 3 This is a schematic diagram of the drive component in Embodiment 1 of this application;

[0029] Figure 4 This is a schematic diagram of the protection mechanism in Embodiment 1 of this application;

[0030] Figure 5 This is a schematic diagram of the spiral steel wire ring in Embodiment 1 of this application;

[0031] Figure 6 This is a schematic diagram of the connector structure in Embodiment 2 of this application;

[0032] Figure 7 This is another structural schematic diagram of the connector in Embodiment 2 of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Mounting base; 11. Mounting groove; 2. Rotating shaft; 3. Driving component; 31. Drive motor; 32. Driving gear; 33. Driven gear; 4. Capping cylinder; 5. Pneumatic gripper; 6. Air supply pipe; 7. Protective mechanism; 71. Corrugated pipe; 711. Spiral wire ring; 712. Through groove; 72. Fixing component; 721. Limiting ring; 722. Clamping plate; 723. Fixing component; 73. Protective layer; 8. Connecting component. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 This application will be described in further detail below.

[0035] This application discloses a capping machine gripper.

[0036] Example 1:

[0037] A capping machine gripper, as shown in the reference Figure 1 , Figure 2 The device includes a mounting base 1, a rotating shaft 2, a drive component 3, a capping cylinder 4, a pneumatic gripper 5, an air supply pipe 6, and a protection mechanism 7. The mounting base 1 provides the foundation for the entire device and is mounted on a mounting frame on the capping machine, and can move along the height of the mounting frame.

[0038] Reference Figure 3 The rotating shaft 2 is located below the mounting base 1 and is rotatably connected to the mounting base 1. The driving component 3 is located on the mounting base 1 to drive the rotating shaft 2 to rotate. In this embodiment, the driving component 3 specifically includes a driving motor 31 fixedly connected to the upper surface of the mounting base 1, a driving gear 32 coaxially sleeved on the output shaft of the driving motor 31, and a driven gear 33 meshing with the driving gear 32. The mounting base 1 is provided with a mounting groove 11 for mounting the driving gear 32 and the driven gear 33. The upper end of the rotating shaft 2 passes through the lower surface of the mounting base 1 to be fixedly mounted on the driven gear 33. When the driving motor 31 is started, the driving gear 32, the driven gear 33 and the rotating shaft 2 are driven to rotate in sequence.

[0039] The capping cylinder 4 is located below the rotating shaft 2, and the pneumatic gripper 5 is located below the capping cylinder 4. It is controlled by the capping cylinder 4 to grip and release the bottle cap. Since the capping cylinder 4 and the pneumatic gripper 5 are existing technologies, they will not be described in detail here.

[0040] The air supply pipe 6 is used to supply air to the pneumatic gripper 5. The air supply pipe 6 is generally a rubber or plastic pipe, which is relatively soft. One end of the air supply pipe 6 is connected to the air source, and the other end is connected to the pneumatic gripper 5 to provide compressed air to the gripper.

[0041] Reference Figure 4 The protective mechanism 7 is disposed outside the air supply pipe 6 to protect the air supply pipe 6 from sagging. Specifically, the protective mechanism 7 includes a corrugated pipe 71 sleeved outside the air supply pipe 6, a fixing assembly 72 for installing the corrugated pipe 71 onto the air supply pipe 6, and a protective layer 73 disposed inside the corrugated pipe 71. In this embodiment, the corrugated pipe 71 can be a metal / high-strength engineering plastic corrugated pipe 71, utilizing the rigid support of the corrugated pipe 71 itself to reduce the possibility of the air supply pipe 6 sagging.

[0042] The fixing component 72 includes a limiting ring 721 fixedly sleeved on the outer peripheral wall of the hose, a retaining plate 722 disposed on the inner wall of the corrugated pipe 71, and a fixing member 723 for fixing the retaining plate 722 to the limiting ring 721. The retaining plate 722 has a slot for the limiting ring 721 to be engaged. In this embodiment, the fixing member 723 is a clamp fixedly connected to the outside of the corrugated pipe 71 to fix the retaining plate 722 and the limiting ring 721. It should be noted that in another embodiment, the fixing member 723 can be a cable tie, specifically a self-locking cable tie, to install the corrugated pipe 71 onto the air supply pipe 6.

[0043] It should be noted that the pallet 722 can be made of elastic materials such as rubber and silicone. Rubber has good elasticity and aging resistance, and can effectively prevent gas leakage when connected with the limit ring 721; silicone has high temperature resistance and corrosion resistance, and is suitable for some special working environments.

[0044] The protective layer 73 can be made of materials with cushioning properties such as sponge or foam, which can buffer and further protect the air supply pipe 6, reducing the impact of vibration and collision on the air supply pipe 6. It can also be made of materials with wear-resistant properties such as rubber, which can improve the wear-resistant protection of the air supply pipe 6.

[0045] Furthermore, a spiral steel wire ring 711 is embedded inside the corrugated pipe 71. The spiral steel wire ring 711 is generally made of stainless steel wire, which increases the strength and deformation resistance of the corrugated pipe 71, further improving the protection of the gas supply pipe 6. Figure 5 As shown.

[0046] The implementation principle of a capping machine gripper according to an embodiment of this application is as follows: the air supply pipe 6 in the capping machine gripper is wrapped by the corrugated pipe 71 in the protection mechanism 7, which reduces the phenomenon of the air supply pipe 6 sagging, and also reduces the impact of the external environment on the air supply pipe 6, extends the service life of the air supply pipe 6, and improves the reliability and ease of use of the equipment.

[0047] Example 2:

[0048] Reference Figure 6 The difference from Embodiment 1 is that the corrugated pipe 71 is detachably connected to the hose. Specifically, the corrugated pipe 71 has a through groove 712 on its outer side. The through groove 712 is provided along the entire length of the corrugated pipe 71. A connector 8 is provided on the corrugated pipe 71. The connector 8 is used to connect the sides located on both sides of the through groove 712. Several connectors 8 are provided at intervals along the length of the corrugated pipe 71.

[0049] In this embodiment, the connector can take several forms. One is a connecting bolt. Specifically, the corrugated pipe is located on both sides of the through-groove as connecting parts, with one connecting part partially covering the other. The covered connecting part has a threaded hole. After the connecting bolt passes through one connecting part, it is screwed into the threaded hole of the other connecting part, thus connecting the two sides of the through-groove. This arrangement enhances the sealing of the connection. Another type of connector can be a self-locking cable tie. It is convenient to use; simply wrap it around the corrugated pipe and then tighten it to self-lock. Figure 7 As shown.

[0050] It should be noted that there may be two through slots 712 arranged symmetrically along the axis to divide the corrugated pipe 71 into two arc-shaped plates with semi-circular cross-sections along the radial direction, depending on the requirements.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A capping machine gripper, characterized in that: The device includes a mounting base (1), a rotating shaft (2) rotatably connected to the mounting base (1), a drive unit (3) mounted on the mounting base (1) for driving the rotating shaft (2) to rotate, a capping cylinder (4) located below the rotating shaft (2), a pneumatic gripper (5) located below the capping cylinder (4), and an air supply pipe (6) for supplying air to the pneumatic gripper (5). A protective mechanism (7) is provided outside the air supply pipe (6). The protective mechanism (7) includes a corrugated pipe (71) sleeved outside the air supply pipe (6) and a fixing assembly (72) for installing the corrugated pipe (71) onto the air supply pipe (6).

2. A capping machine gripper according to claim 1, characterized in that: The corrugated pipe (71) has a spiral steel wire ring (711) embedded inside.

3. A capping machine gripper according to claim 1, characterized in that: The corrugated pipe (71) is detachably connected to the gas supply pipe (6).

4. A capping machine gripper according to claim 3, characterized in that: The corrugated pipe (71) has a through groove (712) on its outside. The through groove (712) is provided along the entire length of the corrugated pipe (71). A connector (8) is provided on the corrugated pipe (71). The connector (8) is used to connect the sides located on both sides of the through groove (712). Several connectors (8) are provided at intervals along the length of the corrugated pipe (71).

5. A capping machine gripper according to claim 4, characterized in that: The connector (8) includes connecting plates disposed on both sides of the through groove (712) and a connecting bolt passing through one of the connecting plates, and the other connecting plate has a threaded hole for threaded connection of the connecting bolt.

6. A capping machine gripper according to claim 4, characterized in that: The corrugated pipe (71) is located on both sides of the through groove (712) as a connecting part, with one connecting part partially covering the other connecting part.

7. A capping machine gripper according to claim 4, characterized in that: The fixing component (72) includes a limiting ring (721) fixedly sleeved on the outside of the hose, a retaining plate (722) disposed on the inner wall of the corrugated pipe (71), and a fixing member (723) for fixing the retaining plate (722) on the limiting ring (721). There are two limiting rings (721) respectively disposed at both ends of the hose, and the retaining plate (722) has a retaining groove for the limiting ring (721) to be inserted.

8. A capping machine gripper according to claim 4, characterized in that: The connector (8) is a self-locking cable tie.

9. A capping machine gripper according to claim 1, characterized in that: The protective mechanism (7) also includes a protective layer (73) disposed within the bellows (71).