A noiseless capping device for spray cans

Abstract

The present invention discloses a noise-free capping device for a spray can, which is used to assemble a pump cover to a can body and includes: a driving part, including a driving motor and a supporting part, the supporting part is used to assemble the driving motor, and the driving motor is used to provide power; a transmission part, including a lead screw body, a nut body and a transmission body, the nut body drives the transmission body and performs axial reciprocating motion along the lead screw body; a capping part, having: a first capping group, including a first linkage body and a second linkage body; and a second capping group, the first capping group passes through the second capping group, the second capping group includes a third linkage body and a fourth linkage body, the transmission part changes the rotational force into a force in a linear direction and conducts it to the capping part, and finally the pump cover and the can body are hermetically assembled through the capping part to realize product forming. The present invention can avoid the vibration and noise brought by the capping process, realize silent production, and provide a good working environment.

Description

Technical Field

[0001] The invention relates to the technical field of filling equipment, and in particular to a noiseless capping device for a spray can. Background Art

[0002] A spray can is a complete pressure packaging container consisting of a valve, a container, and contents (including products, propellants, etc.). When the valve is opened, the contents are released in a controlled manner at a predetermined pressure. Such spray can products, such as aluminum spray cans for treating rhinitis, are generally filled with liquid medicine during production, and then the pump cover is installed. After installation, the pump cover and the tank body have an interference fit and cannot be separated.

[0003] At present, when installing the pump cover of this type of spray can products, stamping is used to assemble the pump cover and the tank body, such as a cylinder or a cam, and a large external force is used to press the pump cover directly into the tank body. This installation method will cause extremely obvious vibration and noise when there are many devices. During production, the upper and lower floors will be affected by vibration and noise, which will damage the office environment and have adverse effects.

[0004] For example, the self-discharging filling and capping integrated machine disclosed in Patent Document 1 performs capping by means of a cylinder capping method.

[0005] Therefore, it is necessary to reduce the vibration and noise generated during production while ensuring normal production to ensure a normal working environment.

[0006] Patent document 1CN216785687U. Summary of the invention

[0007] The present invention aims to avoid the deficiencies of the prior art and provides a noiseless capping device for a spray can, thereby avoiding vibration and achieving noiseless production.

[0008] The present invention solves the technical problem by adopting the following technical solution: a noiseless capping device for a spray can, used for assembling a pump cover to a can body, comprising:

[0009] The driving part includes a driving motor and a supporting part, wherein the supporting part is used to assemble the driving motor, and the driving motor is used to provide power;

[0010] The transmission part includes a screw body, a nut body and a transmission body, wherein the screw body is connected to the output end of the driving motor, the transmission body is connected to the nut body and both are sleeved on the screw body, and the nut body drives the transmission body and performs axial reciprocating motion along the screw body;

[0011] The cover portion comprises:

[0012] The first capping group includes a first linkage body and a second linkage body. The first linkage body is connected to a transmission body. The second linkage body is sleeved on the first linkage body. The first linkage body can axially move within the second linkage body along with the transmission body. The tail of the second linkage body extends into the pump cover and can perform radial telescopic movement; and

[0013] The second capping group. The first capping group passes through the second capping group. The second capping group includes a third linkage body and a fourth linkage body. The third linkage body is sleeved on the transmission body and connected to a support portion. The fourth linkage body is sleeved on the third linkage body. The fourth linkage body can move and lock on the third linkage body. The fourth linkage body is used to press on the upper end surface of the pump cover.

[0014] In several embodiments, the transmission body includes a main board body and two support sleeve bodies arranged on opposite sides of the main board body. One of the support sleeve bodies is connected to a nut body, and the other support sleeve body penetrates into the third linkage body and is connected to the first linkage body.

[0015] The rotational force of the lead screw is changed into a linear force by the transmission body and transmitted to the first linkage body to realize the linear movement of the first linkage body.

[0016] In several embodiments, the fourth linkage body and the third linkage body are in threaded fit. By rotating the fourth linkage body, rotational and lifting movements can be realized on the third linkage body.

[0017] Through the threaded fit structure between the fourth linkage body and the third linkage body, it is convenient to adjust the height position of the fourth linkage body, and then adjust the pressing degree with the pump cover.

[0018] In several embodiments, the second linkage body includes a head, a body, and a tail connected in sequence. The head is connected to the adjacent support sleeve body through an elastic member. The inner diameter of the tail when not under force is smaller than the outer diameter of the first linkage body. The first linkage body can penetrate into the tail and expand the tail.

[0019] Through the structure of the second linkage body, it realizes extending into the pump cover and pushing the side wall of the pump cover to fit with the inner wall of the tank, achieving a sealed fit.

[0020] In several embodiments, scale lines are provided at the upper end surface position of the fourth linkage body.

[0021] In several embodiments, a guiding assembly is provided between the third linkage body and the support portion. The guiding assembly includes: guide posts. A plurality of guide posts are arranged between the third linkage body and the support portion. The guide posts penetrate through the main board body and surround the support sleeve body; a sliding sleeve, sleeved on the guide posts and connected to the main board body. The sliding sleeve can axially move along the guide posts; an elastic body, fixedly sleeved on the guide posts and connected to the support portion.

[0022] Through the guiding assembly, it is convenient to realize the axial movement of the transmission body and at the same time provide a damping effect.

[0023] In several embodiments, a protective cover body is sleeved outside the guiding component, and a detection hole is arranged on the protective cover body for configuring a sensor.

[0024] Through the structure of the protective cover body, dust protection is carried out, and combined with the sensor, precise adjustment and stopping are achieved.

[0025] In several embodiments, the capping device further includes a height adjustment part, and the height adjustment part includes a mounting seat body, an adjustment rod body, an adjustment sleeve body and an adjustment main body. The adjustment sleeve body is sleeved on the adjustment rod body and connected to the support part. The adjustment main body is rotatably arranged on the support part and connected to the adjustment rod body, and the adjustment rod body is connected to the mounting seat body.

[0026] In several embodiments, the adjustment main body includes a screw rod body, a support seat body and a handle body. The support seat body is arranged on the adjustment rod body, and the handle body is arranged on the support seat body and connected to the screw rod body. The handle body is used to drive the screw rod body to rotate.

[0027] In the present invention, through the screw rod structure, the rotational force is changed into a linear force, thereby realizing the assembly action of pressing the pump cover into the tank body. By the way of driving rotation by a motor, there is no noise and no vibration, and the assembly depth and precision can be better controlled, which not only improves the capping quality of the product, but also provides a good working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are only for the purpose of illustrating the selected embodiments and do not represent all possible embodiments, and should not be considered as a limitation on the scope of the present invention.

[0029] Figure 1 Schematically shows the main structure of the noise-free capping device for a spray can in this embodiment;

[0030] Figure 2 Schematically shows Figure 1 the partial enlarged structure in;

[0031] Figure 3 Schematically shows Figure 2 the partial exploded structure of;

[0032] Figure 4 Schematically shows Figure 3 the partial enlarged structure of;

[0033] Figure 5 Schematically shows Figure 3 the sectional structure of;

[0034] Figure 6 Schematically shows Figure 5Local enlarged structure;

[0035] Figure 7 The overall structure of the noiseless capping device for spray cans in this embodiment. Detailed implementation manners

[0036] Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in conjunction with the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0038] The noiseless capping device for spray cans provided by the present invention can replace the cylinder pressing or cam pressing assembly structure in the prior art, can be installed in the existing liquid medicine filling equipment for use, and can assemble the pump cover 100 to the tank body 200 by means of the rotation of the motor, thereby realizing vibration-free and noiseless production.

[0039] As Figure 1 shown, the noiseless capping device in this embodiment is mainly composed of a driving part 10, a transmission part, and a capping part. The driving part 10 is mainly composed of a supporting part 12 and a driving motor 11 assembled on the supporting part 12. The supporting part 12 plays a planar supporting role. Through the driving motor 11, such as a servo motor, a precisely controllable rotational driving force is provided. The transmission part changes the rotational force into a linear force and conducts it to the capping part. Finally, the capping part seals and assembles the pump cover 100 and the tank body 200 to realize product forming.

[0040] According to Figures 2 - 6 , a more detailed description of the capping part will be given.

[0041] Specifically, the capping part is formed by the combination of capping group one and capping group two. Capping group one mainly cooperates to realize the sealing assembly of pressing the pump cover into the inner wall of the tank body. Capping group two mainly realizes the pressing of the end face of the pump cover and is used in cooperation with capping group one.

[0042] The first capping group is composed of the first linkage body 31 and the second linkage body 32. The first linkage body 31 is connected to the transmission body 23. The second linkage body 32 is sleeved on the first linkage body 31. The first linkage body 31 can axially move within the second linkage body 32 along with the transmission body 23. The tail 323 of the second linkage body 32 extends into the pump cover 100 and can perform radial telescopic movement.

[0043] The first linkage body 31 adopts an axial structure with basically the same outer diameter. The second linkage body 32 is composed of a head 321, a body 322, and a tail 323 that are connected in sequence. It has a through hole inside for the first linkage body 31 to pass through.

[0044] Among them, both the head 321 and the body 322 are just large enough for the first linkage body 31 to penetrate. The inner diameter of the tail 323 when not under force is smaller than the outer diameter of the first linkage body 31. The first linkage body 31 can penetrate into the tail 323 and expand the tail 323. That is, the tail 323 is in a state of inward contraction under normal conditions. It can be made of an elastic metal material such as copper. And the tail 323 has a surrounding convex edge, which is convenient for making extrusion contact with the side wall of the pump cover 100. The second linkage body 32 is used as a capping claw structure. For example, Figure 6 As shown, when the first linkage body 31 penetrates, the tail 323 is squeezed to evenly and gradually open around in the radial direction, and then it is squeezed against the side wall of the pump cover 100, and then the side wall is squeezed against the inner wall of the tank body 200 to achieve sealing.

[0045] Correspondingly, the second capping group is composed of the third linkage body 33 and the fourth linkage body 34. The third linkage body 33 is sleeved on the transmission body 23 and is connected to the support part 12. The fourth linkage body 34 is sleeved on the third linkage body 33. The fourth linkage body 34 can move and be locked on the third linkage body 33. The fourth linkage body 34 is used to press on the upper end face of the pump cover 100.

[0046] The fourth linkage body 34 and the third linkage body 33 are in a threaded fit. The third linkage body 33 generally has a structure of a shaft sleeve, and its head position has a disc end face 332. The fourth linkage body 34 also has a sleeve structure, generally with a shape that is wider at the top and narrower at the bottom. By rotating the fourth linkage body 34, rotational and lifting movements can be achieved on the third linkage body 33. At the same time, scale lines 341 are provided in a surrounding manner at the upper end face position of the fourth linkage body 34, and a vertical baseline 331 is correspondingly engraved at the side wall position of the third linkage body 33. Scale lines 341 can also be engraved in the linear direction on the third linkage body 33, so as to facilitate the operator to rotate a specified number of degrees and then adjust the height position of the fourth linkage body 34 and read the height information at the same time.

[0047] Such as Figure 6As shown, during operation, the lower end surface of the fourth linkage body 34 abuts against the upper end surface of the pump cover 100. This end surface accommodates and presses the mouth position of the tank body 200. By adjusting the pressing position of the fourth linkage body 34, the contact sealing effect at this position can be achieved.

[0048] And the structure of the transmission part.

[0049] Specifically, the transmission part is composed of a lead screw body 21, a nut body 22, and a transmission body 23. The lead screw body 21 is connected to the output end of the driving motor 11 through a coupling 13. The transmission body 23 is connected to the nut body 22 and both are sleeved on the lead screw body 21. The nut body 22 drives the transmission body 23 to perform reciprocating axial movement along the lead screw body 21. Here, the transmission body 23 includes a main board body 231 and two support sleeve bodies 232 arranged on opposite sides of the main board body 231. One support sleeve body 232 is connected to the nut body 22, and the other support sleeve body 232 is connected to the head 321 of the second linkage body 32 through an elastic member 324. The elastic member 324 can be a spring, and this support sleeve body 232 is connected to the first linkage body 31, that is, the elastic member 324 and the second linkage body 32 are both arranged around the outside of the first linkage body 31.

[0050] Among them, the support sleeve body 232 connected to the second linkage body 32 penetrates into the third linkage body 33, and a sliding sleeve 301, such as a sleeve bearing without oil, is sleeved between this support sleeve body 232 and the third linkage body 33, which facilitates the up and down movement of the support sleeve body 232 in the third linkage body 33 and reduces friction.

[0051] Thus, when the transmission body 23 drives the first linkage body 31 to move downward, the first linkage body 31 moves to the tail 323 position of the second linkage body 32 and drives the second linkage body 32 to move downward into the pump cover 100, and then an assembly action of spreading out in all directions occurs. When the assembly is completed, when the first linkage body 31 retracts with the transmission body 23, the second linkage body 32 is reset under the action of the spring, and its tail 323 also retracts to its original shape at the same time.

[0052] As Figures 2 - 5 shown, a guiding component 40 is also arranged between the third linkage body 33 and the support part 12. The guiding component 40 is composed of a guide post 41, a sliding sleeve 42, and an elastic body 43. Four guide posts 41 are arranged between the third linkage body and the support protrusion 121. The support protrusion 121 is located below the support part 12, and the quantity is adapted to the quantity of the driving motors. The guide posts 41 pass through the main board body 231 and surround the support sleeve body 232. The sliding sleeve 42 is sleeved on the guide posts 41 and is connected to the main board body 231. The sliding sleeve 42 can move axially along the guide posts 41; the elastic body 43 is fixedly sleeved on the guide posts 41 and is connected to the support part 12. The elastic body 43 can be a rectangular spiral spring.

[0053] Thereby, positioning and shock absorption functions during retraction are achieved.

[0054] Meanwhile, a protective housing 44 is sleeved outside the guiding component 40. A detection hole 45 is provided on the protective housing 44. The detection hole 45 is used to configure a sensor 46. The sensor 46, such as a photoelectric sensor, is used to detect the stroke and thereby control the movement of the driving motor.

[0055] As Figure 7 shown, the capping device also includes a height adjustment part, which is mainly composed of a mounting seat body 51, an adjusting rod body 52, an adjusting sleeve body 53 and an adjusting main body, and is integrally fixedly assembled on the filling equipment through the mounting seat body 51.

[0056] Among them, the adjusting sleeve body 53 adopts a sliding sleeve structure, which is sleeved on the adjusting rod body 52 and connected to the supporting part 12. The adjusting rod body 52 is a guiding rod structure. Two adjusting rod bodies 52 are provided. The adjusting main body is rotatably arranged on the supporting part 12 and connected to the adjusting rod body 52. The adjusting rod body 52 is connected to the mounting seat body 51.

[0057] In addition, the adjusting main body is composed of a screw body 54, a support body 55 and a handle body 56. The support body 55 is arranged on the adjusting rod body 52. The handle body 56 is arranged on the support body 55 and connected to the screw body 54. The screw body 54 passes through the supporting part 12. By rotating the handle body 56, the screw body 54 can be driven to rotate. Thus, the overall height of the supporting part 12 can be adjusted, and then the capping height can be adjusted according to the bottles of different heights.

[0058] It should be noted that through the servo screw structure of the present invention, accurate control of the feeding and speed of the ejector rod is achieved without noise, so as to accurately control the opening and closing size and speed of the capping claw, that is, the linkage body II.

[0059] Certainly, it can also be used in cooperation with a touch screen to set control data digitally on the touch screen and achieve accurate and efficient control.

[0060] All the manners described in this article can be carried out in any suitable order. Any and all examples used, or the exemplary language provided in this article (such as "for example") are only used to better illustrate the present invention, and do not limit the scope of the present invention, unless otherwise claimed. The language in the detailed description should not be construed as indicating any essential elements for practicing the present invention that are not claimed.

[0061] This invention describes preferred embodiments, including the best mode known to the inventors for carrying out the invention. Of course, variations of these preferred embodiments will be apparent to those skilled in the art. The inventors envision that those skilled in the art may use such variations as appropriate, and the inventors note that the invention may be practiced in other ways different from those specifically described herein. Accordingly, the invention includes all modifications included within the spirit and scope of the invention as defined by the claims. Moreover, unless otherwise stated or clearly contradicted by the context, the invention includes any of the foregoing elements and all possible variations thereof.

Claims

1. A noise-free capping device for a spray can, used to assemble a pump cap to a can body, characterized in that it includes: A driving part, including a driving motor and a supporting part, the supporting part is used to assemble the driving motor, and the driving motor is used to provide power; A transmission part, including a lead screw body, a nut body and a transmission body, the lead screw body is connected to the output end of the driving motor, the transmission body is connected to the nut body and both are sleeved on the lead screw body, and the nut body drives the transmission body and performs an axial reciprocating motion along the lead screw body; A capping part, having: A first capping group, including a first linkage body and a second linkage body, the first linkage body is connected to the transmission body, the second linkage body is sleeved on the first linkage body, the first linkage body can axially move in the second linkage body along with the transmission body, and the tail of the second linkage body extends into the pump cap and can perform a radial telescopic motion; and A second capping group, the first capping group passes through the second capping group, the second capping group includes a third linkage body and a fourth linkage body, the third linkage body is sleeved on the transmission body and connected to the supporting part, the fourth linkage body is sleeved on the third linkage body, the fourth linkage body can move and lock on the third linkage body, and the fourth linkage body is used to press on the upper end surface of the pump cap; The transmission body includes a main board body and two support sleeve bodies arranged on opposite sides of the main board body, one support sleeve body is connected to the nut body, the other support sleeve body penetrates into the third linkage body and is connected to the first linkage body, the second linkage body includes a head, a body and a tail connected in sequence, the head is connected to the adjacent support sleeve body through an elastic member, the inner diameter of the tail when not stressed is smaller than the outer diameter of the first linkage body, and the first linkage body can penetrate into the tail and expand the tail.

2. The noise-free capping device for a spray can according to claim 1, characterized in that The fourth linkage body and the third linkage body are in a threaded fit, and by rotating the fourth linkage body, rotational and lifting motions can be realized on the third linkage body.

3. The noise-free capping device for a spray can according to claim 2, characterized in that A scale line is arranged at the upper end surface position of the fourth linkage body.

4. The noise-free capping device for a spray can according to claim 2, characterized in that A guiding component is arranged between the third linkage body and the supporting part, and the guiding component includes: Guide posts, multiple guide posts are arranged between the third linkage body and the supporting part, the guide posts penetrate through the main board body and surround the support sleeve body; A sliding sleeve, sleeved on the guide posts and connected to the main board body, and the sliding sleeve can axially move along the guide posts; An elastic body, fixedly sleeved on the guide posts and connected to the supporting part.

5. The noise-free capping device for a spray can according to claim 4, characterized in that A protective cover body is sleeved outside the guiding component, and a detection hole is arranged on the protective cover body, and the detection hole is used to configure a sensor.

6. The noise-free capping device for a spray can according to claim 1, characterized in that It further includes a height adjustment part, and the height adjustment part includes a mounting seat body, an adjustment rod body, an adjustment sleeve body and an adjustment main body. The adjustment sleeve body is sleeved on the adjustment rod body and connected to the support part. The adjustment main body is rotatably arranged on the support part and connected to the adjustment rod body, and the adjustment rod body is connected to the mounting seat body.

7. The noise-free capping device for a spray can according to claim 6, wherein the adjustment main body includes a screw body, a support body and a handle body. The support body is arranged on the adjustment rod body, the handle body is arranged on the support body and connected to the screw body, and the handle body is used to drive the screw body to rotate.

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