An inner and outer bottle assembling device

Abstract

The utility model relates to a kind of inner and outer bottle assembling device, including outer bottle fixed component and inner bottle rotating component, inner bottle rotating component is located above outer bottle fixed component;Inner bottle rotating component includes lifting block, rotating power mechanism and air suction rotating mechanism, lifting block is connected with rotating power mechanism, rotating power mechanism includes motor base, rotating motor, driving gear and spline transmission gear;Air suction rotating mechanism includes spline shaft vertically through spline transmission gear, air suction connector movably arranged on the upper end of spline shaft and air suction cover fixedly connected to the lower end of spline shaft.The utility model has a chamber for surrounding pump head in air suction cover, when air suction connector inhales, negative pressure is generated in chamber by pipeline, so that pump head is sucked, so when air suction cover rotates, pump head will rotate together, under the premise of outer bottle fixation, the assembly of inner bottle pump head and outer bottle can be automatically completed, and the appearance of double-layer packaging bottle is not damaged.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to an inner and outer bottle assembly device. Background Technology

[0002] To adapt to the market, cosmetic product bottles have been designed to be more refined, consisting of an outer bottle and an inner bottle. The inner and outer bottles are assembled together, making the product more aesthetically pleasing and attractive to customers. The inner bottle can also be used as a refill, making it more economical.

[0003] Figure 1 The illustration shows a double-layered packaging bottle 1, comprising an outer bottle 11, an inner bottle 12, and a pump head 13. The inner bottle 12 can be completely embedded inside the outer bottle 11, and the pump head 13 is used to dispense cosmetics from the inner bottle 12. After the cosmetics in the inner bottle 12 are used up, they can be removed and replaced. During the packaging process of the double-layered packaging bottle 1, the pump head 13 is pre-assembled onto the upper end of the inner bottle 12. The lower periphery of the pump head 13 has a protrusion 131, and the inner side of the bottle opening of the outer bottle 11 has a threaded snap fastener 111. The protrusion 131 can be inserted into the threaded snap fastener 111 until they are locked, thus completing the assembly.

[0004] Chinese patent CN209554316U discloses a double-layer bottle shoulder assembly device. A rotary motor drives a rotary gripper to rotate the shoulder it grips. The rotary gripper is cylindrical and has a fixing block and a set of protrusions on its bottom surface. The protrusion set includes multiple inner bottle gripping blocks and multiple outer bottle gripping blocks arranged along the circumference. A relatively complex rotary gripping block design is used to accommodate the structure of the inner and outer bottles. However, since the inner and outer bottles are generally made of plastic, excessive clamping force from the rotary gripper can easily damage their appearance. The pump head 13 has a complex structure, making it even more difficult to design a matching rotary gripper.

[0005] Therefore, the present invention provides an inner and outer bottle assembly device to complete the assembly of the inner bottle pump head and the outer bottle without damaging the appearance of the double-layer packaging bottle. Utility Model Content

[0006] The main purpose of this utility model is to provide an inner and outer bottle assembly device that can automatically assemble the inner bottle pump head and the outer bottle without damaging the appearance of the double-layer packaging bottle.

[0007] The present invention achieves the above objectives through the following technical solution: an inner and outer bottle assembly device, comprising an outer bottle fixing component for fixing the outer bottle and an inner bottle rotating component for rotating the inner bottle and the pump head, wherein the inner bottle rotating component is located above the outer bottle fixing component; The inner bottle rotating assembly clamps the outer bottle from both sides of the conveying direction; The inner bottle rotating assembly includes a lifting block, a rotating power mechanism, and a suction rotating mechanism. The lifting block is connected to the rotating power mechanism. The rotating power mechanism includes a motor base, a rotary motor fixed on the motor base, and a drive gear and a spline transmission gear meshing inside the motor base. The rotary motor drives the drive gear to rotate, which in turn drives the spline transmission gear to rotate around a vertical axis. The suction rotating mechanism includes a spline shaft that passes vertically through the spline transmission gear, a suction connector movably disposed at the upper end of the spline shaft, and a suction hood fixedly connected to the lower end of the spline shaft. The spline shaft has a pipe that allows air to pass between the suction connector and the suction hood.

[0008] Specifically, the inner bottle rotating assembly includes two clamping cylinders symmetrically arranged along a vertical plane. Each clamping cylinder drives a contouring clamping block, and the two contouring clamping blocks clamp the outer bottle from opposite sides.

[0009] Furthermore, a pad is provided on the clamping surface of the contour clamping block.

[0010] Specifically, two bearings are provided between the motor base and the splined transmission gear.

[0011] Specifically, the drive gear is parallel to the axis of the spline transmission gear, and both axes are in the vertical direction.

[0012] Specifically, the inner bottle rotating assembly also includes a micro-motion mechanism connecting the lifting block and the rotating power mechanism. The micro-motion mechanism includes a Z-shaped bracket, a gas spring, and a vertical plate. The Z-shaped bracket is fixed to the top of the vertical plate. The shorter side of the Z-shaped bracket is connected to the gas spring, and the shaft of the gas spring is connected to the lifting block.

[0013] Furthermore, the higher side of the Z-shaped bracket is connected to the upper part of the motor base via a fine-tuning screw. The upright plate is provided with several vertical waist holes, and the motor base is fixed to the front of the upright plate by bolts passing through the vertical waist holes.

[0014] Furthermore, it also includes a vertical guide component that guides the inner bottle rotation assembly to move vertically up and down. The vertical guide component includes a bracket and a slider disposed on one side of the bracket. The slider has a groove extending in the vertical direction. A vertical slide rail is provided on the back of the upright plate, and the vertical slide rail is precisely matched with the groove.

[0015] The beneficial effects of this utility model's technical solution are: The suction hood of this invention has a chamber for surrounding the pump head. When the suction connector draws in air, a negative pressure is generated in the chamber through the pipe, thereby holding the pump head in place. When the suction hood rotates, the pump head will rotate together. With the outer bottle fixed, the inner bottle pump head and the outer bottle can be automatically assembled without damaging the appearance of the double-layer packaging bottle. Attached Figure Description

[0016] Figure 1 An exploded view of a double-layered bottle; Figure 2 This is a front view of the inner and outer bottle assembly apparatus in the embodiment; Figure 3 A perspective view of the outer bottle fixing component when clamping a double-layered packaging bottle; Figure 4 This is a three-dimensional view of the inner bottle rotating assembly with the lifting block raised. Figure 5 This is a 3D view of the inner bottle rotating assembly in its working state; Figure 6 This is a partial cross-sectional view of the inner and outer bottle assembly device during the assembly of double-layered packaging bottles; Figure 7 This is a partial sectional view of the upper part of the inner bottle rotating assembly.

[0017] The numbers in the diagram represent: 1-Double-layer packaging bottle, 11-Outer bottle, 111-Threaded buckle, 12-Inner bottle, 13-Pump head, 131-Protrusion; 2-Inner and outer bottle assembly device, 21-Outer bottle fixing component, 21-Clamping cylinder, 22-Contouring clamping block, 23-Padded block, 22-Inner bottle rotating assembly; 221-Lifting block; 222-Micro-motion mechanism; 2221-Z-shaped bracket; 2222-Gas spring; 2223-Upright plate; 2224-Fine-adjusting screw; 2225-Vertical slide rail; 223-Rotational power mechanism; 2231-Motor base; 2232-Rotary motor; 2233-Drive gear; 2234-Splined transmission gear; 2235-Bearing; 224-Suction rotation mechanism; 2241-Splined shaft; 22411-Pipe; 2242-Suction connector; 2243-Suction hood. 23-Vertical guide assembly, 231-Bracket, 232-Slider; 3-Cup holder. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to specific embodiments.

[0019] Example: like Figures 1 to 3 As shown, the present invention provides an inner and outer bottle assembly device, which includes an outer bottle fixing component 21 for fixing the outer bottle 11, an inner bottle rotating component 22 for rotating the inner bottle 12 and the pump head 13, and a vertical guide component 23 for guiding the inner bottle rotating component 22 to move vertically up and down. The inner bottle rotating component 22 is located above the outer bottle fixing component 21.

[0020] Initially, the inner bottle 12 and pump head 13 are inserted into the outer bottle 11, with the inner bottle 11 completely inside the cavity of the outer bottle 11 and the pump head 13 protruding from the opening of the outer bottle 11. They are secured by rotating the pump head 13, causing the protrusion 131 to rotate along the direction of rotation of the threaded clip 111 until it is locked. The protrusion 131 and the threaded clip 111 are generally made of plastic and can be slightly deformed to lock in place. The outer bottle fixing assembly 21 is used to fix the outer bottle 11 in an upward-facing position to prevent displacement during installation, while the inner bottle rotating assembly 22 allows the inner bottle 12 and pump head 13 to rotate.

[0021] like Figure 3 and Figure 6 As shown, the inner bottle rotating assembly 22 includes two clamping cylinders 21 arranged symmetrically along the vertical plane. Each clamping cylinder 21 drives a contouring clamping block 22. The two contouring clamping blocks 22 clamp the outer bottle 11 from opposite sides. A pad block 23 is provided on the clamping surface of the contouring clamping block 22.

[0022] To ensure the untightened double-walled bottle 1 moves stably on the production line without tipping over, it is placed on a cup holder 3 and moved along the conveyor line, with the upper part of the outer bottle 11 protruding beyond the cup holder 3. To avoid affecting the translation of the cup holder 3 and the double-walled bottle 1, the clamping cylinder 21 is located on both sides of the conveyor line's movement direction; that is, the inner bottle rotating assembly 22 clamps the outer bottle 11 from both sides of the conveyor direction. The clamping surface structure of the contour clamp 22 closely resembles the outer wall structure of the outer bottle 11. Since the contour clamp 22 is generally made of rigid material, direct contact with the outer bottle 11 cannot guarantee surface contact, which could easily cause scratches, deformation, and other cosmetic defects. Therefore, an elastic pad 23 is needed for cushioning, which not only avoids cosmetic defects but also makes the clamping more stable.

[0023] like Figures 4 to 7As shown, the inner bottle rotating assembly 22 includes a lifting block 221, a micro-motion mechanism 222, a rotating power mechanism 223, and a suction rotating mechanism 224. The micro-motion mechanism 222 connects the lifting block 221 and the rotating power mechanism 223. The rotating power mechanism 223 includes a motor base 2231, a rotary motor 2232 fixed on the motor base 2231, a drive gear 2233 and a spline transmission gear 2234 meshing inside the motor base 2231, and a spacer located between the motor base 2231 and the spline transmission gear 2234. Two bearings 2235, a rotary motor 2232 drives the drive gear 2233 to rotate, which in turn drives the spline transmission gear 2234 to rotate around the vertical axis; the suction rotation mechanism 224 includes a spline shaft 2241 that passes vertically through the spline transmission gear 2234, a suction connector 2242 that is movably set at the upper end of the spline shaft 2241, and a suction cover 2243 that is fixedly connected to the lower end of the spline shaft 2241. The spline shaft 2241 has a pipe 22411 that allows air to pass between the suction connector 2242 and the suction cover 2243.

[0024] The lifting block 221 is driven by other lifting mechanisms (not shown), such as ordinary cylinders or linear modules. The lifting of the lifting block 221 causes the other parts of the inner bottle rotating assembly 22 to rise and fall. The motor base 2231 serves as the fixed foundation for the rotary motor 2232, the drive gear 2233, and the splined transmission gear 2234, and also protects the drive gear 2233 and the splined transmission gear 2234. The splined shaft 2241 is a rotating shaft with many grooves along its generatrix. The shaft hole of the splined transmission gear 2234 matches the cross-section of the splined shaft 2241, allowing the splined shaft 2241 to rise and fall along the shaft hole of the splined transmission gear 2234 while maintaining the same rotation angle. The outer side of the splined transmission gear 2234 has a gear section structure that can cooperate with the drive gear 2233, thereby transmitting the rotational power of the rotary motor 2232 to the suction hood 2243. Two bearings 2235 are used to allow the splined transmission gear 2234 to rotate under low friction. The suction hood 2243 contains a chamber that surrounds the pump head 13. When the suction connector 2242 draws in air, a negative pressure is generated in the chamber through the pipe 22411, thereby holding the pump head 13 in place. Thus, when the suction hood 2243 rotates, the pump head 13 will rotate along with it. With the outer bottle 11 fixed, the assembly of the inner bottle pump head and the outer bottle can be completed automatically without damaging the appearance of the double-layered packaging bottle. The outer end of the suction connector 2242 is connected to a flexible hose (not shown). The splined shaft 2241 rotates in one direction. To prevent the hose from tangling, the suction connector 2242 is rotatably connected to the upper end of the splined shaft 2241.

[0025] like Figure 7 As shown, the drive gear 2233 and the spline transmission gear 2234 have parallel axes, and both axes are in the vertical direction.

[0026] When both the driving gear 2233 and the splined transmission gear 2234 rotate around a vertical axis, both are cylindrical gears, and the rotary motor 2232 can be mounted above the motor base 2231. Theoretically, the driving gear 2233 and the splined transmission gear 2234 could also be bevel gears, but the axis of the splined transmission gear 2234 must be vertical, so in this case, the axis of the rotary motor 2232 can be horizontal.

[0027] like Figure 4 and Figure 5 As shown, the micro-motion mechanism 222 includes a Z-shaped bracket 2221, a gas spring 2222, a vertical plate 2223, an adjusting screw 2224, and a vertical slide rail 2225. The Z-shaped bracket 2221 is fixed to the top of the vertical plate 2223. The shorter side of the Z-shaped bracket 2221 is connected to the gas spring 2222. The shaft of the gas spring 2222 is connected to the lifting block 221. The higher side of the Z-shaped bracket 2221 is connected to the upper part of the motor base 2231 through the micro-adjusting screw 2224. The vertical plate 2223 is provided with several vertical waist holes 22231. The motor base 2231 is fixed to the front of the vertical plate 2223 by bolts (not shown) passing through the vertical waist holes 22231. The vertical slide rail 2225 is provided on the back of the vertical plate 2223.

[0028] Because the height of the lifting block 221 depends on the drive of the lifting mechanism, the height of the suction hood 2243 is not only limited by the height of the lifting block 221, but also by the height of the pump head 13. Therefore, a gas spring 2222 is needed for buffering. At the same time, the relative height between the upright plate 2223 and the motor base 2231 must also be adjusted to an appropriate range. If the suction hood 2243 is too low, it will interfere with the translation of the double-layer packaging bottle 1; if the suction hood 2243 is too high, when the lifting block 221 descends to its lowest point, the suction hood 2243 cannot make full contact with the pump head 13, and therefore cannot use suction to hold the pump head 13 and make it rotate synchronously with the suction hood 2243. The fine-tuning screw 2224 is used to adjust the relative height between the upright plate 2223 and the motor base 2231. The vertical waist hole 22231 allows the bolt to move within a certain height range. After the fine-tuning screw 22231 is adjusted, the bolt should be tightened to fix the relative position of the upright plate 2223 and the motor base 2231.

[0029] like Figure 4 As shown, the vertical guide assembly 23 includes a bracket 231 and a slider 232 disposed on one side of the bracket 231. The slider 232 has a groove extending in the vertical direction, and the vertical slide rail 2225 is precisely matched with the groove.

[0030] With the lifting block 221 fixed to the lifting mechanism, the rotating power mechanism 223 will cause the center of gravity of the entire inner bottle rotating assembly 22 to shift outside the axis of the lifting mechanism. This can lead to problems such as easy damage to the lifting mechanism and difficulty in aligning the suction hood 2243 with the pump head 13. Therefore, it is necessary to use the vertical guide assembly 23 to balance the horizontal force on the inner bottle rotating assembly 22. Here, the cooperation between the vertical slide rail 2225 and the slider 232 is used to help the inner bottle rotating assembly 22 maintain a strictly vertical lifting position. Theoretically, a guide rod that passes vertically through the motor base 2231 can also be used to guide the vertical lifting of the suction hood 2243.

[0031] The working process of this inner and outer bottle assembly device 2 is as follows: 1. The double-layered packaging bottle 1 is placed on the cup holder 3 and conveyed by the conveyor line to the space between the two open contour clamps 22. After the double-layered packaging bottle 1 is in place, the two contour clamps 22 move towards each other and clamp the part of the outer bottle 11 that is exposed in the cup holder 3.

[0032] 2. The lifting mechanism drives the lifting block 221 to descend, causing the suction hood 2243 to move down until it is fitted over the pump head 13. Air is drawn in at the suction connector 2242, causing the pump head 13 to stick to the inner wall of the suction hood 2243. The micro-motion mechanism 222 enables the pump head 13 and the suction hood 2243 to automatically adapt to each other's positions.

[0033] 3. The rotary motor 2232 drives the suction hood 2243 to rotate clockwise, causing the protrusion 131 on the pump head 13 to engage with the threaded buckle 111 inside the outer bottle 11, thus completing the assembly.

[0034] 4. The suction hood 2243 moves above the double-layer packaging bottle 1, the contour clamp 22 releases the outer bottle 11, and the conveyor line moves the cup holder 3 carrying the double-layer packaging bottle 1 to the next workstation.

[0035] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. An inner and outer bottle assembly device, comprising an outer bottle fixing assembly for fixing an outer bottle and an inner bottle rotating assembly for rotating an inner bottle and a pump head, wherein the inner bottle rotating assembly is located above the outer bottle fixing assembly; The inner bottle rotating assembly clamps the outer bottle from both sides of the conveying direction; Its features are: The inner bottle rotating assembly includes a lifting block, a rotating power mechanism, and a suction rotating mechanism. The lifting block is connected to the rotating power mechanism. The rotating power mechanism includes a motor base, a rotary motor fixed on the motor base, and a drive gear and a spline transmission gear meshing inside the motor base. The rotary motor drives the drive gear to rotate, which in turn drives the spline transmission gear to rotate around a vertical axis. The suction rotating mechanism includes a spline shaft that passes vertically through the spline transmission gear, a suction connector movably disposed at the upper end of the spline shaft, and a suction hood fixedly connected to the lower end of the spline shaft. The spline shaft has a pipe that allows air to pass between the suction connector and the suction hood.

2. The inner and outer bottle assembly device according to claim 1, characterized in that: The inner bottle rotating assembly includes two clamping cylinders symmetrically arranged along a vertical plane. Each clamping cylinder drives a contour clamping block, and the two contour clamping blocks clamp the outer bottle from opposite sides.

3. The inner and outer bottle assembly device according to claim 2, characterized in that: The clamping surface of the contour clamping block is provided with pads.

4. The inner and outer bottle assembly device according to claim 1, characterized in that: Two bearings are provided between the motor base and the splined transmission gear.

5. The inner and outer bottle assembly device according to claim 1, characterized in that: The driving gear is parallel to the axis of the splined transmission gear, and both axes are in the vertical direction.

6. The inner and outer bottle assembly device according to claim 1, characterized in that: The inner bottle rotating assembly also includes a micro-motion mechanism connecting the lifting block and the rotating power mechanism. The micro-motion mechanism includes a Z-shaped bracket, a gas spring and a vertical plate. The Z-shaped bracket is fixed to the top of the vertical plate. The shorter side of the Z-shaped bracket is connected to the gas spring, and the shaft of the gas spring is connected to the lifting block.

7. The inner and outer bottle assembly device according to claim 6, characterized in that: The higher side of the Z-shaped bracket is connected to the upper part of the motor base via a fine-tuning screw. The upright plate is provided with several vertical waist holes, and the motor base is fixed to the front of the upright plate by bolts passing through the vertical waist holes.

8. The inner and outer bottle assembly device according to claim 7, characterized in that: It also includes a vertical guide component that guides the inner bottle rotation assembly to move vertically up and down. The vertical guide component includes a bracket and a slider disposed on one side of the bracket. The slider has a groove extending in the vertical direction. A vertical slide rail is provided on the back of the upright plate. The vertical slide rail is precisely matched with the groove.

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