Height-adjustable cap screwing device and cap screwing machine

Abstract

The utility model relates to a height-adjustable cap screwing device and a cap screwing machine, which comprise a cap screwing arm, the cap screwing arm is connected with an adjusting device, a cap screwing head is arranged below the cap screwing arm, the adjusting device comprises a lifting mechanism and a driving plate connected with the lifting mechanism, the lifting mechanism drives the driving plate to lift, the driving plate is provided with an inner water seal male head, and the inner water seal male head is connected with the cap screwing arm. An outer water seal female head is arranged on the peripheral side of the screw cap head and below the regional partition plate, the outer water seal female head is provided with an annular groove, sealing fluid is arranged in the annular groove, an inner water seal male head is inserted into the annular groove, at least part of the inner water seal male head is immersed in the sealing fluid when the inner water seal male head ascends and descends along with the driving plate, and overflow holes are formed in the side face of the annular groove. According to the utility model, different products can be sealed in a screw cap manner in a sterile environment, so that the compatibility of equipment is improved; in addition, the connection mode of the shaft sleeve and the main shaft is improved, the flat key can be replaced only by removing the screw, and maintenance of equipment is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw cap machine technical field, especially in height adjustable screw cap device and screw cap machine of formula. BACKGROUND

[0002] Screw cap machine is a kind of automation equipment for screwing bottle cap on bottle mouth, and is widely used in food, beverage, pharmaceutical, cosmetic and other industries.At present, the screw cap machine matched with filling machine is mostly integral height unchangeable, which cannot simultaneously satisfy the production switching of multiple height bottle types.In addition, since it is necessary to ensure that the screw cap area is in a sterile environment, the lower area of the screw cap machine needs to be isolated from the upper area at all times, and the screw cap machine itself needs to rotate during production process, and axial movement is needed when switching products, so the screw cap machine needs to simultaneously perform dynamic sealing in axial and radial directions at this time.

[0003] At present, the up-and-down movement of the screw cap arm is realized by the combination of cam follower and cam, and during screwing, the screw cap arm will apply a relatively large top pressure to the cap to form a sealing ring inside the cap, and the follower will generate a relatively large friction with the cam.Due to the fact that the follower itself also bears a relatively large radial pressure, the roller must be made of high-strength alloy steel, and in order to prolong the service life, lubricating grease needs to be added to the contact surface of the cam and the follower.Currently, the lubricating grease is manually added by brush, which is low in efficiency and may pose a risk of damaging the sterile environment of the screw cap area. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of height adjustable screw cap device and screw cap machine that can adjust the height of screw cap arm according to bottle height, and keep sealing during lifting process.

[0005] The specific technical scheme is as follows: a kind of height adjustable screw cap device, including screw cap arm, screw cap arm is connected with adjusting device, the lower of screw cap arm is equipped with screw cap head, the adjusting device includes lifting mechanism, and with the lifting mechanism connection active plate, lifting mechanism drives active plate to lift, the active plate is equipped with inner water seal male head, the side of screw cap head is equipped with outer water seal female head, outer water seal female head is arranged below area partition board, outer water seal female head has annular groove, annular groove has sealing fluid, inner water seal male head is inserted in annular groove, at least part of inner water seal male head is immersed in sealing fluid when active plate lifts, annular groove side is equipped with overflow hole.The screw cap head of this embodiment adopts sterile aluminum cap screw cap head, so that the screw cap head is easy to flush and clean, and is suitable for the sealing of products in aluminum cap sterile environment.

[0006] In some embodiments, the inner water seal male head includes an annular plate, which is located below the active plate and arranged around the active plate, at least part of the annular plate is located above the partition board, the annular plate is inserted in the annular groove and located below the sealing fluid, and there is a gap between the annular plate and the inner wall of the annular groove.

[0007] In some embodiments, the annular groove is provided with an inlet hole and an outlet hole below, and the sealing fluid continuously enters the annular groove from the inlet hole and flows out from the overflow hole.

[0008] In some embodiments, the adjusting device comprises a motor and a lifting screw, the motor is connected with the lifting screw, the lifting screw is provided with a main shaft below, the main shaft is connected with a shaft sleeve through a connecting group, and the shaft sleeve is arranged below the driving plate.

[0009] In some embodiments, the connecting assembly comprises a flat key and a pressing plate, the flat key is arranged in the groove of the main shaft, the shaft sleeve is fixed on the main shaft through the pressing plate, and the pressing plate is locked on the flat key through a locking piece.

[0010] In some embodiments, a sealing structure is arranged between the cap rotating arm and the driving plate, the sealing structure has axial and radial sealing, and separates the sterile cap area below the driving plate from the upper area with bacteria.

[0011] In some embodiments, the sealing structure comprises a bellows sealing sleeve, the cap rotating arm comprises a cantilever shaft and a guide sleeve sleeved on the cantilever shaft, the cantilever shaft passes through the driving plate, the guide sleeve is provided with the bellows sealing sleeve, the bellows sealing sleeve is located in the sterile cap area below the driving plate, the bellows sealing sleeve is fixed between the guide sleeve and a lower fixing ring of the bellows sealing sleeve through a sealing sleeve clamp, the lower fixing ring has radial sliding sealing with the cantilever shaft, and the bellows sealing sleeve has axial elasticity.

[0012] In some embodiments, the sealing structure comprises a heating block, the cap rotating arm comprises a cantilever shaft and a guide sleeve sleeved on the cantilever shaft, the guide sleeve is fixedly connected with the driving plate, and the heating block is sleeved on the guide sleeve and located above the driving plate.

[0013] In some embodiments, a cam is arranged above the cap rotating arm, the cap rotating arms are arranged on the cam at intervals, and the cam is connected with the friction-free roller bearing.

[0014] A cap rotating machine comprises the height-adjustable cap rotating device.

[0015] The utility model discloses technical effect: the utility model discloses height adjustable formula cap screwing device and cap screwing machine, through adjusting the lifting mechanism, realize the cap screwing of different products under the aseptic environment, increase the equipment compatibility, the cam is equipped with automatic lubricating device and can reduce the manual oiling equipment machine time of idling, promote production efficiency, and avoid the damage of manual oiling not in time, uneven to equipment, prolong the service life of equipment, this equipment still improved the connecting mode of axle sleeve and main shaft, the flat key and main shaft sleeve are fixed through screw, can make main shaft and main shaft sleeve fit well and install flat key first, reduce equipment installation time and difficulty, when the flat key wears, just can replace flat key to the screw, be favorable to the maintenance and maintenance of equipment, through setting up the sealing structure between the driving plate and cantilever shaft, can ensure the isolation of the bacteria area and the bacteria-free area between the driving plate up and down. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in prior art, the following will briefly introduce the drawing needed to be used in the specific embodiment or prior art description, obviously, the drawing in the following description is some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0017] Figure 1 It is the schematic diagram of the cap screwing machine of the utility model embodiment.

[0018] Figure 2 It is the schematic diagram of the inner water seal male head and outer water seal female head of the utility model embodiment.

[0019] Figure 3 It is the schematic diagram of the utility model Figure 1 The enlarged view of part A.

[0020] Figure 4 It is the schematic diagram of the sealing structure of the utility model embodiment.

[0021] Figure 5 It is the schematic diagram of the sealing structure of another embodiment of the utility model. SPECIFIC EMBODIMENT

[0022] The technical scheme of the utility model will be described clearly and completely in conjunction with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creating labor belong to the protection scope of the utility model.

[0023] In the description of the utility model, it is necessary to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicate or imply that the device or element indicated must have a particular orientation, construct and operate in a particular orientation, therefore cannot be understood as the limitation of the utility model. In addition, the term "first", "second", "third" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it is necessary to explain, unless otherwise expressly provided and limited, the term "installation", "connection", "connection" should be broad understanding, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through the intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0025] The specific embodiment of the utility model is described in detail below in combination with the drawings. It should be understood that the specific embodiment described herein is only used to illustrate and explain the utility model, and is not used to limit the utility model.

[0026] As Figures 1 to 3As shown, the height-adjustable cap screwing device of the embodiment comprises a cap screwing arm 1 connected with an adjusting device, a cap screwing head 2 arranged below the cap screwing arm 1, and used for screwing the cap on the product 10. The height of the cap screwing arm 1 is adjusted by the adjusting device. The adjusting device comprises a lifting mechanism 3 and a driving plate 4 connected with the lifting mechanism 3, and the lifting mechanism 3 drives the driving plate 4 to lift. The driving plate 4 is provided with an inner water seal male head 5, and the cap screwing head 2 is provided with an outer water seal female head 6 arranged below a region separation plate 7, which separates the cap screwing machine into an upper region 71 and a lower region 72, and the lower region 72 is isolated from the upper region 71 at all times to ensure that the cap screwing region is in a sterile environment. The outer water seal female head 6 has an annular groove 61 with sealing fluid, and the inner water seal male head 5 is inserted into the annular groove 61, and at least part of the inner water seal male head 5 is immersed in the sealing fluid when the driving plate 4 is lifted, and the annular groove 61 is provided with an overflow hole 62, so that the sealing fluid can be discharged from the annular groove 61 through the overflow hole 62, and the sealing fluid of the embodiment is water. In the above technical solution, when the product is switched, the lifting mechanism 3 drives the driving plate 4 to lift, so that the upper part of the driving plate 4 is lifted together, and the cap screwing arm 1 is lifted synchronously to adapt to products of different heights. When lifting, the annular plate of the inner water seal male head moves up and down in the annular groove of the outer water seal female head, so that the water in the annular groove always covers the inner water seal male head, and the inner water seal male head can be sealed in the radial and axial directions, thereby isolating the upper and lower regions and realizing cap screwing and sealing of different products in a sterile environment.

[0027] The inner water seal male head 5 comprises an annular plate 51 arranged below the driving plate 4 and surrounding the driving plate 4, at least part of the annular plate 51 is arranged above the separation plate 7, the annular plate 51 is inserted into the annular groove 61 and immersed in the sealing fluid below, and the annular plate 51 has a gap with the inner wall of the annular groove 61. Through the above technical solution, the hole 73 around the separation plate 7 can be blocked by the annular plate 51, and the annular plate is sealed by the sealing fluid. The annular groove 61 is provided with a water inlet hole 63 and a water outlet hole 64, the sealing fluid continuously enters the annular groove 61 from the water inlet hole 63 and flows out from the overflow hole 62, and the water outlet hole 64 is used for draining water.

[0028] In the embodiment, the adjusting device comprises a motor 8 and a lifting screw rod 9, the motor 8 is connected with the lifting screw rod 9, the motor 8 rotates to drive the copper nut connected with the screw rod to rotate, the lifting screw rod moves up and down to drive the whole machine to move up and down, which is the basic structure of the screw rod nut transmission. A main shaft 91 is arranged below the lifting screw rod 9, the main shaft 91 is connected with a shaft sleeve 92 through a connecting assembly, the shaft sleeve 92 is arranged below the driving plate 4, the lifting screw rod 9 drives the main shaft to move up and down, the main shaft 91 drives the main shaft sleeve 92 to move axially, so as to drive the driving plate 4, the main shaft is arranged in the middle of the driving plate, the main shaft sleeve drives the whole cantilever to rotate and can move up and down. The connecting assembly comprises a flat key 93 and a pressing plate 94, the flat key 93 is arranged in a groove 911 of the main shaft 91, the shaft sleeve 92 is fixed on the main shaft 91 through the pressing plate 94, the pressing plate 94 is locked on the flat key 93 through a locking piece 95, the locking piece of the embodiment is a screw. The flat key 93 and the shaft sleeve 92 are fixed through the screw, the flat key can be installed after the main shaft and the shaft sleeve are matched well, so that the equipment installation time and difficulty are reduced, when the flat key is worn, the flat key can be replaced only by removing the screw, which is beneficial to the maintenance and maintenance of the equipment.

[0029] In the embodiment, a sealing structure is arranged between the cap rotating arm 1 and the driving plate 4, the sealing structure has axial and radial sealing, which isolates the sterile cap area below the driving plate from the upper area with bacteria, so as to avoid that the bacteria in the upper area with bacteria enter the lower sterile area during the movement of the cap rotating arm 1 and the driving plate 4.

[0030] The sealing structure of the embodiment comprises a bellows sealing sleeve 8, the cap rotating arm 1 comprises a cantilever shaft 13 and a guide sleeve 14 sleeved on the cantilever shaft 13, the cantilever shaft 13 penetrates through the driving plate 4, the guide sleeve 14 is provided with the bellows sealing sleeve 8, the bellows sealing sleeve 8 is located in the sterile cap area below the driving plate 4, the bellows sealing sleeve 8 is fixed between the guide sleeve 14 and a lower fixing ring 82 of the bellows sealing sleeve 8 through a sealing sleeve clamp 81, the lower fixing ring 82 has radial sliding sealing with the cantilever shaft 13, the bellows sealing sleeve 8 has axial elasticity. The upper part of the driving plate is the normal air area of the machine, and the lower part of the driving plate is the sterile cap area, through the above technical scheme, the rotation and axial movement of the cantilever shaft itself will not make the air in the upper part of the machine enter the sterile cap area, so as to not destroy the sterile environment of the sterile cap area, and the sterile requirement is achieved.

[0031] As another embodiment of the sealing structure, the sealing structure of the embodiment comprises a heating block 9, the rotating cap arm 1 comprises a cantilever shaft 13, and a guide sleeve 14' is sleeved on the cantilever shaft 13 and is fixedly connected with the driving plate 4, the heating block 9 is sleeved on the guide sleeve 14' and is located above the driving plate 4. The upper part of the driving plate 4 is the normal air area on the machine, and the area below the driving plate 4 is the sterile rotating cap area. The heating block 9 is fixed on the cantilever guide sleeve 14' in a clamping manner, the cantilever shaft 13 guide sleeve is fixed on the driving plate 4 by screws and rotates with the driving plate 4, the heating block 9 heats the guide sleeve to make it stable, and when the air on the upper part of the machine passes between the guide sleeve and the cantilever shaft, the bacteria in the high-temperature air are killed to ensure that the sterile environment of the sterile rotating cap area is not damaged. The temperature sensor 20 can monitor the temperature of the heating block in real time, so as to avoid that the temperature is too high or too low.

[0032] The rotating cap arm 1 is provided with a cam 11 above, and a plurality of rotating cap arms 1 are arranged on the cam 11 at intervals to control the movement track of the rotating cap arm when rotating the cap. The cam 11 is connected with a lubrication-free roller bearing 12, and a high-strength high-molecular wear-resistant plastic lubrication-free roller bearing is used to replace the metal bearing, so that lubricating grease is not needed, thereby avoiding damage to the sterile environment of the rotating cap area. The driving plate 4 is provided with a shell 41 above, and the cam 11 is arranged in the shell 41. The driving plate 4 drives the shell 41 to rise and fall as a whole, so as to adjust the height of the plurality of rotating cap arms 1.

[0033] In the embodiment, the height-adjustable rotating cap device is arranged in a rotating cap machine.

[0034] The height-adjustable rotating cap device and the rotating cap machine of the embodiment adjust the lifting mechanism to realize rotating cap sealing of different products in a sterile environment, increase the compatibility of the equipment, and use a high-strength high-molecular wear-resistant plastic lubrication-free roller bearing to replace a metal bearing, so that lubricating grease is not needed, thereby avoiding damage to the sterile environment of the rotating cap area. The device also improves the connection mode of the shaft sleeve and the main shaft. The flat key and the main shaft sleeve are fixed by screws. The flat key can be installed after the main shaft and the main shaft sleeve are matched well, so that the installation time and difficulty of the equipment are reduced. When the flat key is worn, the flat key can be replaced only by removing the screws, which is beneficial to the maintenance and maintenance of the equipment.

[0035] The height-adjustable rotating cap device and the rotating cap machine of the embodiment are described above. However, the utility model is not limited to the above specific embodiments, and various modifications and changes can be made without departing from the scope of the claims. The utility model includes various modifications and changes within the scope of the claims.

[0036] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the utility model, but not limited to them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A height-adjustable cap screwing device comprising a cap screwing arm connected with an adjusting device, a cap screwing head being arranged below the cap screwing arm, characterized in that The adjusting device comprises a lifting mechanism and a driving plate connected with the lifting mechanism, the driving plate is lifted by the lifting mechanism, the driving plate is provided with an inner water seal male head, the rotating cap head is provided with an outer water seal female head on the side, the outer water seal female head is arranged below the area separation plate, the outer water seal female head has an annular groove, the annular groove has sealing fluid, the inner water seal male head is inserted in the annular groove, at least part of the inner water seal male head is immersed in the sealing fluid when the driving plate is lifted, and the annular groove is provided with an overflow hole.

2. The height adjustable spin-on cap apparatus of claim 1, wherein, The inner water seal male head comprises an annular plate, the annular plate is arranged below the driving plate and surrounds the driving plate, at least part of the annular plate is arranged above the separation plate, the annular plate is inserted in the annular groove and below the sealing fluid, and a gap is formed between the annular plate and the inner wall of the annular groove.

3. The height adjustable spin-on cap apparatus of claim 2, wherein, The annular groove is provided with a water inlet hole and a water outlet hole below, the sealing fluid continuously enters the annular groove from the water inlet hole and flows out from the overflow hole.

4. The height adjustable spin-on cap apparatus of claim 1, wherein, The adjusting device comprises a motor and a lifting screw rod, the motor is connected with the lifting screw rod, the lifting screw rod is provided with a main shaft below, the main shaft is connected with a shaft sleeve through a connecting assembly, and the shaft sleeve is arranged below the driving plate.

5. The height adjustable spin-on cap apparatus of claim 4, wherein, The connecting assembly comprises a flat key and a pressing plate, the flat key is arranged in the groove of the main shaft, the shaft sleeve is fixed on the main shaft through the pressing plate, and the pressing plate is locked on the flat key through a locking piece.

6. The height adjustable spin-on cap apparatus of claim 1, wherein, A sealing structure is arranged between the rotating cap arm and the driving plate, the sealing structure has axial and radial sealing, and the sterile rotating cap area below the driving plate is isolated from the upper area with bacteria.

7. The height adjustable spin-on cap apparatus of claim 6, wherein, The sealing structure comprises a bellows sealing sleeve, the rotating cap arm comprises a cantilever shaft and a guide sleeve sleeved on the cantilever shaft, the cantilever shaft penetrates through the driving plate, the guide sleeve is provided with the bellows sealing sleeve, the bellows sealing sleeve is located in the sterile rotating cap area below the driving plate, the bellows sealing sleeve is fixed between the guide sleeve and the lower fixing ring of the bellows sealing sleeve through a sealing sleeve clamp, the lower fixing ring has radial sliding sealing with the cantilever shaft, and the bellows sealing sleeve has axial elasticity.

8. The height adjustable spin-on cap apparatus of claim 6, wherein, The sealing structure comprises a heating block, the rotating cap arm comprises a cantilever shaft and a guide sleeve sleeved on the cantilever shaft, the guide sleeve is fixedly connected with the driving plate, and the heating block is sleeved on the guide sleeve and located above the driving plate.

9. The height adjustable spin-on cap apparatus of claim 1, wherein, A cam is arranged above the rotating cap arm, a plurality of rotating cap arms are arranged on the cam at intervals, and the cam is connected with a lubrication-free roller bearing.

10. A cap screwing machine characterized by comprising: The height-adjustable rotating cap device comprises the height-adjustable rotating cap device of any one of claims 1 to 9.

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