Lipstick tube assembling machine

Abstract

The utility model discloses a lipstick tube assembling machine which is provided with a first station disc, a second station disc and a transfer turn-over mechanism, the first station disc is provided with a bead feeding mechanism, an outer cover feeding mechanism, an oil spraying mechanism, a bottom rotation feeding mechanism and an output station in sequence, and is responsible for a bead-outer cover-oil spraying-bottom rotation assembly module; the second station disc is provided with a bottom shell feeding module, a weighting block feeding module, a combination station, a servo screwing mechanism and a finished product conveying mechanism in sequence and bears a bottom shell-weighting block-combination-screwing-finished product assembly module. The double-station disc is clear in division of labor, and the problem of procedure omission or connection breakpoint of traditional equipment is solved. The transfer turn-over mechanism accurately transfers materials on the first station disc to the combination position of the second station disc through cooperative actions of lifting, rotating and clamping, a full-process closed loop of feeding, assembling and finished product outputting is constructed, the semi-automatic limitation of traditional equipment is broken through, and the production efficiency and the automation level are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cosmetic packaging assembly machine technical field especially relates to a lipstick tube assembly machine. BACKGROUND

[0002] With the vigorous development of cosmetic industry, the quality, production efficiency and sanitary safety of lipstick and other make-up products are increasingly improved by consumers. The lipstick tube is usually assembled by two parts of the tube body and the cap, and the assembly quality directly affects the use feeling, sealing performance and appearance quality of the product. Especially for the unconventional lipstick tube with positioning notches in the outer cover and a weight block in the tube, the assembly precision is higher (the coaxiality of the parts should be less than or equal to 0.1 mm).

[0003] The traditional lipstick tube assembly method mainly relies on manual operation or semi-automatic equipment, and the manual assembly is slow (about 15-20 seconds for a single assembly) and has poor precision (the misplacement rate of the parts is more than 5%). In addition, the direct contact of the workers with the materials may cause sanitary hazards, which does not meet the clean standards of cosmetic production. Although some automatic equipment has been applied to the assembly of lipstick tubes, such as the use of vibrating disc feeding, mechanical hand grabbing and pneumatic pressing, the connection between the processes is not smooth, the automation degree is not complete, the full-process closed-loop control from feeding to finished product delivery cannot be realized, and there is a lack of special adaptive design for special structure lipstick tubes, which may cause positioning deviation, weight block falling off and outer cover assembly skewing. This not only fails to meet the production requirements of large quantities (the daily production capacity should be more than 10,000) and high precision, but also has the industry pain point of insufficient flexible production capacity. When the product specifications are changed, the equipment adjustment time is more than 2 hours, which cannot adapt to the production characteristics of multiple categories and fast iteration in the make-up industry. SUMMARY

[0004] The utility model aims at overcoming the problems of low automation degree, process connection fault and poor adaptability of special structure in the prior art, and provides a lipstick tube assembly machine, which realizes precise connection through double-station disc division and cooperation + transfer and turning mechanism, constructs full-process automation closed loop, optimizes the component positioning structure, and improves the assembly precision and flexible production capacity.

[0005] To achieve the above-mentioned purpose, the utility model provides a lipstick tube assembly machine, which comprises a first station disc and a second station disc arranged side by side with the first station disc, a pearl feeding mechanism, a cap feeding mechanism, an oil spraying mechanism, a bottom rotating feeding mechanism and an output position are arranged on the first station disc in sequence according to the process,

[0006] A bottom shell feeding mechanism, a weight block feeding mechanism, a combination position, a servo tightening mechanism and a finished product conveying mechanism are arranged on the second station disc in sequence according to the process,

[0007] The first work station disc and the second work station disc are further provided with a transfer and turning mechanism, which is between the output position and the combination position of the first work station disc, and comprises a transfer fixing frame, a turning and lifting device, a rotating device and a transfer gripper, the transfer fixing frame is fixed between the output position and the combination position, the turning and lifting device is fixed on the transfer fixing frame and connected with the rotating device, the turning and lifting device drives the rotating device to move up and down, the transfer gripper is fixedly connected with the rotating device and above the output position or the combination position,

[0008] When the material on the first work station disc is transported to the output position, the turning and lifting device drives the rotating device to lift, the transfer gripper clamps the material on the first work station disc, and then the rotating gripper is turned to the combination position by the rotating device, so that the material on the first work station disc is assembled with the material on the second work station disc.

[0009] Preferably, the outer cover feeding mechanism comprises an outer cover feeding machine, a personal operation table, an outer cover conveyor and an outer cover clamping device, the outer cover feeding machine is arranged at one end of the outer cover conveyor, the personal operation table is arranged at intervals with the outer cover feeding machine, and the outer cover clamping device is arranged at the other end of the outer cover conveyor,

[0010] The outer cover conveyor transports the outer cover to the outer cover clamping device, and then the outer cover clamping device clamps the outer cover from the outer cover conveyor to the first work station disc,

[0011] The outer cover can be automatically fed by the outer cover feeding machine or manually fed by the personal operation table.

[0012] Preferably, the outer cover clamping device comprises a fixing frame, a lifting and translating device, a first outer cover gripper, a second outer cover gripper and a transition frame, the lifting and translating device is fixedly connected with the fixing frame, the first outer cover gripper and the second outer cover gripper are respectively connected with the lifting and translating device, the lifting and translating device drives the first outer cover gripper and the second outer cover gripper to move up and down or translate, and the transition frame is between the outer cover conveyor and the first work station disc,

[0013] The first outer cover gripper clamps the material on the outer cover conveyor, and places the material on the transition frame by the lifting and translating device, while the second outer cover gripper clamps the material on the transition frame and places the material on the first work station disc.

[0014] Preferably, the transition frame comprises a transition frame, a transition plate, a selective rotation column and a rotation driving device, the transition plate is fixed on the transition frame, the selective rotation column is arranged on the transition plate, and the rotation driving device is connected with the selective rotation column and drives the selective rotation column to rotate,

[0015] After the material is picked up by the first outer cover gripper, it is placed on the directional rotating column by the lifting and translating device.

[0016] Preferably, the orientation-selecting rotating column is provided with a positioning protrusion.

[0017] The rotation drive device includes a drive cylinder, a gear, and a drive rack. The drive cylinder is fixed below the transition plate, and its output end is connected to the drive rack. The drive rack meshes with the gear, and the gear is connected to the direction-selecting rotating column.

[0018] When the material is placed on the directional rotating column, the drive cylinder drives the drive rack to move, which in turn causes the gear to rotate, thereby causing the directional rotating column to rotate.

[0019] Preferably, the flipping and lifting device includes a lifting cylinder and a U-shaped connecting frame. The lifting cylinder is fixed to the transfer fixing frame, and the output end of the lifting cylinder is fixedly connected to the U-shaped connecting frame and drives the U-shaped connecting frame to move up and down.

[0020] The rotating device includes a rotary cylinder and a rotating shaft.

[0021] The rotary cylinder is fixed to the U-shaped connecting frame, the rotating shaft is connected to the rotary cylinder, and the intermediate gripper is fixed to the rotating shaft.

[0022] The rotary cylinder drives the intermediate gripper to swing back and forth between the output position and the combination position.

[0023] Preferably, the rotating device further includes a rotating fixing seat, one side of which is fixedly connected to the rotary cylinder, and the other side is provided with a fixing groove. The end face of the rotating shaft is provided with a fixing protrusion corresponding to the fixing groove, and the fixing protrusion engages with the fixing groove.

[0024] Preferably, the rotating shaft is further provided with a connecting groove, and the transfer gripper is fixedly connected to the connecting groove.

[0025] Preferably, the transfer and flipping mechanism further includes a pipe straightening device, which includes a pipe straightening frame, a slide cylinder, and a pipe straightening clamp. The pipe straightening frame is fixed on the second workstation plate, and the slide cylinder is fixed on the pipe straightening frame with its output end fixedly connected to the pipe straightening clamp.

[0026] The tube support frame is provided with tube notches corresponding to the materials.

[0027] The beneficial effects of this utility model are: Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0029] Figure 1 This is a top view of the present invention.

[0030] Figure 2 This is a schematic diagram of the outer cover feeding mechanism of this utility model.

[0031] Figure 3 This is a schematic diagram of the outer cover clamping device of this utility model.

[0032] Figure 4 This is a structural schematic diagram of the transition frame of this utility model.

[0033] Figure 5 This is a schematic diagram of the transfer and flipping mechanism of this utility model.

[0034] Figure 6 This is a schematic diagram of the rotating device of this utility model.

[0035] Figure 7 This is a schematic diagram of the structure of the tube straightening device of this utility model.

[0036] In the diagram: First workstation plate - 100; Bead feeding mechanism - 110; Outer cover feeding mechanism - 120; Oil spraying mechanism - 130; Bottom spiral feeding mechanism - 140; Output position - 150;

[0037] Outer cover feeding machine-121; Personal operating table-122; Outer cover conveyor-123; Outer cover clamping device-124; Fixing frame-1241; Lifting and translating device-1242; First outer cover gripper-1243; Second outer cover gripper-1244; Transition frame-125; Positioning protrusion-12531; Directional rotating column-1253; Rotation drive device-1254; Drive rack-12543; Gear-12542;

[0038] Second workstation tray-200; bottom shell feeding mechanism-210; weight block feeding mechanism-220; assembly position-230; servo tightening mechanism-240; finished product conveying mechanism-250;

[0039] Transfer and flipping mechanism - 300; Transfer fixing frame - 310; Flipping lifting device - 320; Lifting cylinder - 321; U-shaped connecting frame - 322; Rotating device - 330; Rotary cylinder - 331; Rotating shaft - 332; Fixing flange - 3321; Connecting groove - 3322; Rotation fixing seat - 333; Fixing groove - 3331; Transfer gripper - 340;

[0040] Pipe straightening device-400; pipe straightening frame-410; slide cylinder-420; pipe straightening clamp-430; pipe straightening notch-431. Detailed Implementation

[0041] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0042] like Figure 1 As shown, a lipstick tube assembly machine includes a first workstation tray 100, a second workstation tray 200, and a transfer and flipping mechanism 300. The first workstation tray 100 and the second workstation tray 200 are two parallel circular platforms used to carry and transfer materials to be assembled. Driven by a motor, they rotate intermittently, sequentially delivering the materials to each workstation.

[0043] The first workstation tray 100 is equipped with a bead feeding mechanism 110, an outer cap feeding mechanism 120, an oil spraying mechanism 130, a bottom screw feeding mechanism 140, and an output position 150. The second workstation tray 200 is equipped with a bottom shell feeding mechanism 210, a weight feeding mechanism 220, an assembly position 230, a servo tightening mechanism 240, and a finished product conveying mechanism 250. These mechanisms are responsible for feeding components such as beads, outer caps, bottom shells, and weights to the workstation trays and completing assembly processes such as oil spraying and tightening. This can meet the batch assembly needs of unconventional lipstick tubes such as beads, middle beads, bottom screws, and bottom shells with built-in weights, and is suitable for standardized production lines of medium and large-sized cosmetic manufacturing enterprises.

[0044] like Figure 2 As shown, the outer cover feeding mechanism 120 includes an outer cover feeder 121, a personal operating table 122, an outer cover conveyor 123, and an outer cover clamping device 124. The outer cover feeding mechanism supports both automatic and manual feeding modes. The outer cover feeder 121 can be an automated device such as a vibratory feeder, used for automatically and orderly supplying outer covers during mass production. The personal operating table 122 provides a manual feeding interface, which can be used to handle outer covers of special specifications or in small batches, greatly enhancing the flexibility of the equipment. The outer cover feeder adopts a robotic flexible feeding structure, enabling automatic sorting and orientation of outer covers, adapting to different specifications of outer covers with diameters of 15-25mm. The personal operating table is equipped with specification-adaptive clamps, facilitating manual replenishment of small batches of special-specification outer covers, improving the flexibility of the equipment. The outer cover conveyor 123 (such as a belt conveyor) is used to continuously and orderly transport outer covers, ensuring that the clamping device can stably acquire materials.

[0045] Specifically, such as Figure 3As shown, the outer cover gripping device 124 includes a fixed frame 1241, a lifting and translating device 1242, a first outer cover gripper 1243, a second outer cover gripper 1244, and a transition frame 125. The lifting and translating device 1242 (e.g., an XY axis motor module, or a combination of cylinders in two directions) is fixed to the fixed frame 1241 and connected to the two grippers. When loading is required, the first outer cover gripper 1243 descends to grip the material on the outer cover conveyor 123, and then the lifting and translating device 1242 drives the two grippers to move, placing the material on the transition frame 125. At the same time, the second outer cover gripper 1244 moves to the transition frame 125, grips the oriented material, and places it at the designated position on the first workstation 100. This "dual gripper alternating operation" method avoids the waiting time when a single gripper is operating and improves the loading cycle time.

[0046] Furthermore, such as Figure 4 As shown, the transition frame 125 is equipped with a directional rotating column 1253 and a rotation drive device 1254. The directional rotating column 1253 can rotate around its axis, and its surface is provided with positioning protrusions 12531 that match the positioning notches on the outer cover. When the material is placed on the directional rotating column 1253 by the first outer cover gripper 1243, the rotation drive device 1254 (e.g., driven by a drive cylinder) operates, driving the drive rack 12543 to move. The drive rack 12543 meshes with the gear 12542, thereby causing the gear 12542 and the directional rotating column 1253 to rotate synchronously. When the positioning notch on the outer cover aligns and engages with the positioning protrusions 12531 of the directional rotating column 1253, the rotation drive device 1254 stops, achieving precise orientation of the outer cover. The transfer gripper and direction-selecting rotating column are detachable and replaceable, and can be adapted to different specifications such as 15-25mm diameter outer cover and 1-5g weight blocks. When changing product specifications, the equipment adjustment time can be shortened, meeting the production needs of the beauty industry for multiple categories and rapid iteration.

[0047] like Figure 1 , Figure 5As shown, the transfer and flipping mechanism 300 is located between the output position 150 of the first workstation 100 and the combination position 230 of the second workstation 200. Its structure includes a transfer fixing frame 310, a flipping lifting device 320, a rotating device 330, and a transfer gripper 340. The transfer fixing frame 310 provides a stable mounting base for the entire mechanism. The flipping lifting device 320 is fixed to the transfer fixing frame 310 and connected to the rotating device 330, enabling the rotating device 330 to move up and down. The transfer gripper 340 is fixed to the rotating device 330 and located directly above the output position 150 or the combination position 230. When the material on the first workstation plate 100 (such as the outer cover that has completed part of the process) reaches the output position 150, the flipping lifting device 320 drives the rotating device 330 to descend, the transfer gripper 340 clamps the material, and then the flipping lifting device 320 drives the rotating device 330 to rise. The rotating device 330 then drives the transfer gripper 340 to rotate 180°, flipping the material to the assembly position 230, so that it can be assembled with the bottom shell, weight block and other materials on the second workstation plate 200.

[0048] The flipping and lifting device 320 includes a lifting cylinder 321 and a U-shaped connecting frame 322. The lifting cylinder 321 is fixed on the transfer fixing frame 310, and its output end is connected to the U-shaped connecting frame 322, driving the U-shaped connecting frame 322 to move up and down. The rotating device 330 includes a rotary cylinder 331 and a rotating shaft 332. The rotary cylinder 331 is fixed on the U-shaped connecting frame 322, and its output shaft is connected to the rotating shaft 332. The transfer gripper 340 is fixed on the rotating shaft 332. When it is necessary to flip the material, the lifting cylinder 321 drives the U-shaped connecting frame 322 to descend, so that the transfer gripper 340 can grip the material; then the rotary cylinder 331 drives the rotating shaft 332 to rotate 180°, driving the transfer gripper 340 to flip the material; finally, the lifting cylinder 321 drives the U-shaped connecting frame 322 to rise, transferring the material to the assembly position 230.

[0049] like Figure 6 As shown, the rotating device 330 also includes a rotating fixing seat 333. One side of the rotating fixing seat 333 is fixedly connected to the rotary cylinder 331, and the other side has a fixing groove 3331. The end face of the rotating shaft 332 has a fixing protrusion 3321 corresponding to the fixing groove 3331. When the rotating shaft 332 is installed in place, the fixing protrusion 3321 engages with the fixing groove 3331, forming a rigid connection. This prevents relative sliding between the rotating shaft 332 and the rotary cylinder 331 during rotation, thus ensuring the accuracy of the 180° rotation angle. Furthermore, to enhance connection reliability, the rotating shaft 332 also has a connecting groove 3322. The intermediate gripper 340 is fixedly connected to the connecting groove 3322 by bolts or other fasteners to prevent the gripper from loosening during high-speed rotation.

[0050] like Figure 7As shown, at the assembly position 230 of the second workstation 200, when the material (outer cover) transferred from the first workstation 100 is aligned with the bottom shell, weight block and other materials, a tube alignment device 400 is set at the assembly position 230 to ensure the coaxiality of the inner and outer tubes during assembly.

[0051] Specifically, the pipe straightening device 400 includes a pipe straightening frame 410, a sliding cylinder 420, and a pipe straightening clamp 430. The pipe straightening frame 410 is fixed on the second workstation plate 200 and has a pipe straightening notch 431 adapted to the shape of the material. The sliding cylinder 420 is fixed on the pipe straightening frame 410, and its output end is connected to the pipe straightening clamp 430. Before the material is assembled, the sliding cylinder 420 drives the pipe straightening clamp 430 to extend. The clamping part of the pipe straightening clamp 430 contacts the material and applies slight pressure. At the same time, the pipe straightening notch 431 matches the outer contour of the material to position and straighten the material, correcting any minor deviations. After the material is accurately assembled, the sliding cylinder 420 retracts, and the pipe straightening device 400 exits the working area without affecting the subsequent tightening process. The clamping surface of the tube clamp is equipped with a rubber buffer layer to avoid damaging the material surface; the stroke of the slide cylinder is 10-30mm, and the action response time is ≤0.5 seconds, which can quickly complete the positioning correction before material assembly, with a maximum correction offset of ±0.2mm, ensuring the coaxiality of the pre-assembled components and the bottom shell components.

[0052] In addition, each mechanism is equipped with positioning sensors and error detection units (such as torque detection for tightening mechanisms) to monitor the assembly process in real time and automatically reject defective products; the transfer fixing frame, transition frame, etc. are made of aluminum alloy and have shock-absorbing pads at the bottom to reduce vibration interference during equipment operation.

[0053] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A lipstick tube assembling machine comprising a first work station disc and a second work station disc arranged side by side with the first work station disc, characterized in that, The first work station disc is provided with a bead feeding mechanism, an outer cover feeding mechanism, an oil spraying mechanism, a bottom rotating feeding mechanism and an output position arranged in sequence according to the working procedure, The second work station disc is provided with a bottom shell feeding mechanism, a weight block feeding mechanism, a combination position, a servo rotating mechanism and a finished product conveying mechanism arranged in sequence according to the working procedure, The first work station disc and the second work station disc are further provided with a transfer and turning mechanism, which is arranged between the output position of the first work station disc and the combination position, and comprises a transfer fixing frame, a turning lifting device, a rotating device and a transfer gripper, the transfer fixing frame is fixed between the output position and the combination position, the turning lifting device is fixed on the transfer fixing frame and connected with the rotating device, the turning lifting device drives the rotating device to move up and down, the transfer gripper is fixedly connected with the rotating device and arranged above the output position or the combination position, When the material on the first work station disc is conveyed to the output position, the turning lifting device drives the rotating device to lift, the transfer gripper clamps the material on the first work station disc, and then the rotating gripper is turned to the combination position by the rotating device, so that the material on the first work station disc is assembled with the material on the second work station disc.

2. A lipstick tube assembling machine as claimed in claim 1, wherein, The outer cover feeding mechanism comprises an outer cover feeding machine, a personal operation table, an outer cover conveyor and an outer cover clamping device, the outer cover feeding machine is arranged at one end of the outer cover conveyor, the personal operation table is arranged at intervals with the outer cover feeding machine, and the outer cover clamping device is arranged at the other end of the outer cover conveyor, The outer cover conveyor transports the outer cover to the outer cover clamping device, and then the outer cover clamping device clamps the outer cover from the outer cover conveyor to the first work station disc, The outer cover can be automatically fed by the outer cover feeding machine or manually fed by the personal operation table.

3. A lipstick tube assembly machine as claimed in claim 2, wherein, The outer cover clamping device comprises a fixing frame, a lifting and translating device, a first outer cover gripper, a second outer cover gripper and a transition frame, the lifting and translating device is fixedly connected with the fixing frame, the first outer cover gripper and the second outer cover gripper are respectively connected with the lifting and translating device, the lifting and translating device drives the first outer cover gripper and the second outer cover gripper to move up and down or translate, and the transition frame is arranged between the outer cover conveyor and the first work station disc, The first outer cover gripper clamps the material on the outer cover conveyor, and places the material on the transition frame by the lifting and translating device, while the second outer cover gripper clamps the material on the transition frame and places it on the first work station disc.

4. A lipstick tube assembly machine as claimed in claim 3, wherein, The transition frame comprises a transition frame, a transition plate, a selective direction rotating column and a rotating driving device, the transition plate is fixed on the transition frame, the selective direction rotating column is arranged on the transition plate, and the rotating driving device is connected with the selective direction rotating column and drives the selective direction rotating column to rotate, When the material is clamped by the first outer cover gripper, the material is placed on the selective direction rotating column by the lifting and translating device.

5. A lipstick tube assembly machine as claimed in claim 4, wherein, The selective direction rotating column is provided with a positioning protrusion, The rotating driving device comprises a driving cylinder, a gear and a driving rack, the driving cylinder is fixed below the transition plate, the output end of the driving cylinder is connected with the driving rack, the driving rack is meshed and connected with the gear, the gear is connected with the direction selecting rotating column, When the material is placed on the direction selecting rotating column, the driving cylinder drives the driving rack to move, and then the gear rotates, so that the direction selecting rotating column rotates.

6. A lipstick tube assembly machine as claimed in claim 1, wherein, The surface turning lifting device comprises a lifting cylinder and a U-shaped connecting frame, the lifting cylinder is fixed on the middle transfer fixed frame, the output end of the lifting cylinder is fixedly connected with the U-shaped connecting frame and drives the U-shaped connecting frame to move up and down, The rotating device comprises a slewing cylinder and a rotating shaft, The slewing cylinder is fixed on the U-shaped connecting frame, the rotating shaft is connected with the slewing cylinder, and the middle transfer clamp hand is fixed on the rotating shaft, The slewing cylinder drives the middle transfer clamp hand to reciprocate between the output position and the combined position.

7. A lipstick tube assembly machine as claimed in claim 6, wherein, The rotating device further comprises a rotating position fixing seat, one side of the rotating position fixing seat is fixedly connected with the slewing cylinder, the other side is provided with a fixing groove, the end surface of the rotating shaft is provided with a fixing convex edge corresponding to the fixing groove, and the fixing convex edge is clamped with the fixing groove.

8. A lipstick tube assembling machine according to claim 6 or 7, wherein The rotating shaft is further provided with a connecting groove, and the middle transfer clamp hand is fixedly connected with the connecting groove.

9. A lipstick tube assembly machine as claimed in claim 6, wherein, The middle transfer surface turning mechanism further comprises a tube aligning device, the tube aligning device comprises a tube aligning frame, a sliding table cylinder and a tube aligning clamp, the tube aligning frame is fixed on the second work position disc, the sliding table cylinder is fixed on the tube aligning frame and the output end is fixedly connected with the tube aligning clamp, The tube aligning frame is provided with a tube aligning notch corresponding to the material.

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