A fully automated assembly line and method for cosmetic needles

Abstract

This invention belongs to the technical field of medical device manufacturing equipment, and particularly relates to a fully automated assembly production line and method for cosmetic needles. The production line includes a first machine mechanism for assembling the base, needle holder, and needle plate; a second machine mechanism for assembling the needle tube; and a third machine mechanism for assembling the needle handle and cap. The first, second, and third machine mechanisms are arranged in a straight line and connected by a linear vibration conveyor. By reducing the number of machines in existing fully automated assembly equipment, the production line is simplified, space occupancy is reduced, and the linear arrangement of the mechanisms makes the assembled machine more aesthetically pleasing.

Description

Technical Field

[0001] This invention belongs to the field of medical device manufacturing equipment technology, and in particular relates to a fully automated assembly line and method for cosmetic needles. Background Technology

[0002] Cosmetic needles (also known as microneedles) are commonly used for skin rejuvenation. They are medical devices, typically consisting of 9 or 16 needles neatly arranged in a needle case. During use, the front of the needle case is placed against the skin, and negative pressure is applied to lift and pull the skin, causing the needle tip to insert into the lifted skin. The cosmetic liquid is then injected into the dermis through the needle. The needle case usually includes a base and, in sequence, a needle hub, needle plate, needle handle, and a screw cap. One end of the needle is fixed to the needle plate, and the other end extends through the needle hub into the base. During use, the length of the extended needle can be adjusted by rotating the screw cap to push the needle handle. The needle handle serves as the inlet tube for the cosmetic liquid. Currently, the assembly of the needles and needle case is mostly done manually, which not only compromises hygiene but also reduces production efficiency.

[0003] For example, Chinese patent application number (CN202211682403.X) discloses a fully automatic assembly equipment for nine-needle aqua-light technology, including a first machine for assembling the shell, glue sleeve and needle seat piece into a first semi-finished product, a second machine for installing multiple needles into the first semi-finished product to form a second semi-finished product, a third machine for installing a liquid guide connector into the second semi-finished product to form a third semi-finished product, and a fourth machine for installing a knob and adjusting the needle length into the third semi-finished product to form a finished product. This application improves assembly efficiency by replacing manual assembly with fully automatic assembly equipment. However, this application has a large number of machines, the production line is cumbersome, and the placement of each machine is messy due to the influence of the feeding angle and unloading angle, which not only affects the aesthetics but also results in low space utilization. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a fully automated assembly line and method for cosmetic needles, achieving a lean production line, aesthetically pleasing overall design, and high space utilization.

[0005] In view of this, the present invention provides a fully automated assembly line for cosmetic needles, including needle tubes and a needle box for mounting the needle tubes, wherein the needle box includes a base, a needle holder, a needle plate, a needle handle, and a cap, and the production line includes:

[0006] The first machine tool mechanism is used for assembling the base, needle holder, and needle plate;

[0007] The second machine mechanism is used for assembling syringes;

[0008] The third machine mechanism is used for assembling the needle handle and the screw cap;

[0009] The first machine tool mechanism, the second machine tool mechanism, and the third machine tool mechanism are arranged in a straight line in sequence, and a straight vibration conveying device is provided between the first machine tool mechanism and the second machine tool mechanism, as well as between the second machine tool mechanism and the third machine tool mechanism, for connection.

[0010] In the above technical solution, further:

[0011] The first machine mechanism includes a first frame, a first rotary table mounted on the first frame, and a base loading station, a base oiling station, a needle seat loading station, a first pressing station, a needle plate loading station, a second pressing station, and a first sorting station arranged in sequence around the first rotary table on the first frame.

[0012] The first pressing station and the second pressing station are respectively equipped with a first detection component and a second detection component for detecting the needle holder and the needle plate.

[0013] In the above technical solution, the base oiling station further includes:

[0014] The first bracket is mounted on the first frame and is equipped with a clamp and a first cross slide for driving the clamp to move.

[0015] An elastic band is fitted onto the output end of the clamp;

[0016] An oil tank, installed on the side of the first bracket, contains silicone oil;

[0017] The clamp is equipped with four grippers.

[0018] In the above technical solution, further:

[0019] The needle plate feeding station includes a needle plate feeding assembly, a notch detection assembly, and a suction assembly;

[0020] The needle plate feeding assembly includes:

[0021] The second bracket is installed on the first frame and is equipped with a material picking plate and a first cylinder for driving the material picking plate to pick up materials.

[0022] The top plate assembly is installed below the material feeding plate and is used to lift the needle plate;

[0023] The notch detection component is installed on the material receiving plate.

[0024] In the above technical solution, the suction component further includes:

[0025] The third support is mounted on the first frame and located on the side of the second support, and is equipped with a picking rod and a second cross slide for driving the picking rod to move;

[0026] The driving component is mounted on the third bracket and is used to drive the material handling rod to rotate;

[0027] The vacuum suction rod is slidably connected inside the material picking rod, and a vacuum generator is connected to the top end, which is used to adsorb and grab the top plate;

[0028] The second cylinder is installed at the output end of the second cross slide and is used to drive the suction rod to slide along the axial direction of the picking rod.

[0029] The bottom end of the material-taking rod has a material-taking cavity, which is used to house the needle plate lifted by the top plate assembly.

[0030] In the above technical solution, further:

[0031] The second machine mechanism includes a second frame, a second rotary table mounted on the second frame, and a first feeding station, a needle loading station, a third pressing station, a needle replacement station, a fourth pressing station, a dispensing station, a first curing station, a second sorting station, and a first sensing station arranged in sequence around the second rotary table on the second frame.

[0032] Visual inspection is provided in both the third and fourth pressing stations.

[0033] In the above technical solution, the needle loading station further includes:

[0034] The fourth bracket is installed on the second rack;

[0035] The needle box assembly is mounted on the fourth bracket and is used for feeding needles;

[0036] The guide needle assembly, mounted on the fourth support, is used to guide the needle loading.

[0037] The needle suction assembly is mounted on the fourth bracket and is used to retrieve needles from the needle box assembly and load needles via the needle guide assembly.

[0038] In the above technical solution, further:

[0039] The third machine mechanism includes a third frame, a third rotary table mounted on the third frame, and a second feeding station, a needle handle feeding station, a fifth pressing station, an adhesive application station, a self-leveling station, a second curing station, a plug and leak testing station, a cap feeding station, a sixth pressing station, a needle adjustment station, a feeding station, and a second sensing station arranged sequentially around the third rotary table on the third frame.

[0040] The fifth and sixth pressing stations are respectively equipped with a third and a fourth detection component for detecting the needle handle and the cap.

[0041] In the above technical solution, the leak detection station further includes:

[0042] The fifth bracket is installed on the third rack;

[0043] An air supply assembly, mounted on the fifth bracket and located above the third rotating platform, is used to supply air to the needle handle;

[0044] The venting assembly is mounted on the fifth bracket and located below the third rotating platform, and is used for venting the syringe.

[0045] The gas supply assembly includes a first detection unit for detecting the gas supply flow rate, and the exhaust assembly includes a second detection unit for detecting the exhaust flow rate.

[0046] This invention provides an assembly method for a fully automated cosmetic needle assembly production line, comprising the following steps:

[0047] S1: Production line starts;

[0048] S2: The first machine tool feeds the base and applies silicone oil to the inner wall of the base;

[0049] S3: The first machine tool feeds the needle holder;

[0050] S4: The first machine tool feeds the needle plate and adjusts the direction of needle plates that are not in the correct orientation.

[0051] S5: Qualified first semi-finished products enter the second machine mechanism, and unqualified first semi-finished products are unloaded and removed;

[0052] S6: The second machine mechanism performs multiple needle loading and testing, replenishes any missing needles, and tests again;

[0053] S7: The second machine mechanism applies glue to fix the syringe, while the qualified second semi-finished product enters the third machine mechanism, and the unqualified second semi-finished product is unloaded and removed.

[0054] S8: The third machine tool feeds the needle handle and applies glue to fix it.

[0055] S9: The third machine mechanism performs plugging and leak detection on the syringe;

[0056] S10: The third machine mechanism feeds the rotating cap;

[0057] S11: The third machine mechanism adjusts the height of the needle tubes in the needle box;

[0058] S12: Differentiate between qualified and unqualified finished products for material cutting.

[0059] The beneficial effects of this invention are as follows:

[0060] 1. The base, needle holder, and needle plate are assembled through the first machine mechanism, the needle tube is installed through the second machine mechanism, and the needle handle and cap are installed through the third machine mechanism. This reduces the number of machines, simplifies the production line, and reduces space occupation. The first, second, and third machine mechanisms are arranged in a straight line, making the whole machine more aesthetically pleasing after assembly.

[0061] 2. Apply oil to the inner wall of the base through the base oiling station to increase the lubrication effect between the needle holder and the base, and improve the convenience of adjusting the needle extension length during subsequent use.

[0062] 3. The notch detection component detects the angle of the needle plate after it is loaded, and then adjusts it to facilitate the adjustment of the installation angle of the needle plate and ensure the glued connection between the needle plate and the needle shank.

[0063] 4. By using a sliding vacuum suction rod, the needle plate can be moved and pushed into the needle holder for installation, improving the convenience of needle plate installation. Attached Figure Description

[0064] Figure 1 This is a schematic diagram of the structure of the present invention;

[0065] Figure 2 This is a top view of the first machine tool mechanism of the present invention;

[0066] Figure 3 This is a top view of the second machine tool mechanism of the present invention;

[0067] Figure 4 This is a top view of the third machine tool mechanism of the present invention;

[0068] Figure 5 This is a schematic diagram of the base oiling station of the present invention;

[0069] Figure 6 This is a schematic diagram of the needle plate feeding station of the present invention;

[0070] Figure 7 This is a top view of the needle plate loading station of the present invention;

[0071] Figure 8 This is the present invention. Figure 7 Sectional view at point AA;

[0072] Figure 9 This is a schematic diagram of the needle loading station of the present invention;

[0073] Figure 10 This is a schematic diagram of the structure of the leak detection station of the present invention;

[0074] The markings in the diagram represent: 1. First machine mechanism; 2. Second machine mechanism; 3. Third machine mechanism; 4. Vertical vibratory conveyor; 5. First frame; 6. First rotary table; 7. Base loading station; 8. Base oiling station; 80. First support; 81. Clamp; 82. First cross slide; 83. Elastic band; 84. Oil tank; 85. Gripper; 9. Needle holder loading station; 10. First pressing station; 11. Needle plate loading station; 110. Needle plate Material assembly; 1100, second support; 1101, material picking plate; 1102, first cylinder; 1103, top plate assembly; 111, notch detection assembly; 112, suction assembly; 1120, third support; 1121, material picking rod; 1122, second cross slide; 1123, drive component; 1124, vacuum suction rod; 1125, second cylinder; 1126, material picking chamber; 12, second pressing station; 13, first sorting station; 16, the... 17. Second Rotary Table; 18. First Loading Station; 19. Needle Loading Station; 190. Fourth Support; 191. Needle Box Assembly; 192. Needle Guide Assembly; 193. Needle Suction Assembly; 20. Third Pressing Station; 21. Needle Replacement Station; 22. Dispensing Station; 23. Fourth Pressing Station; 24. First Curing Station; 25. Second Sorting Station; 26. First Sensing Station; 27. Third Frame; 28. Third Rotary Table; 29. ​​Second Loading Station 30. Material feeding station; 31. Needle handle feeding station; 32. Fifth pressing station; 33. Glue application station; 34. Self-leveling station; 35. Second curing station; 36. Detection and leak testing station; 37. Fifth bracket; 38. Air supply assembly; 39. Exhaust assembly; 30. First detection unit; 31. Second detection unit; 32. Cap feeding station; 33. Sixth pressing station; 34. Needle adjustment station; 35. Material unloading station; 46. Second sensing station. Detailed Implementation

[0075] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0076] Example 1:

[0077] This embodiment provides a fully automated assembly production line for cosmetic needles, including needle tubes and a needle box for mounting the needle tubes. The needle box includes a base, a needle holder, a needle plate, a needle handle, and a cap. The production line includes:

[0078] The first machine tool mechanism 1 is used for assembling the base, needle holder and needle plate;

[0079] The second machine tool mechanism 2 is used for assembling needles;

[0080] The third machine tool mechanism 3 is used for assembling the needle handle and the screw cap;

[0081] The first machine tool mechanism 1, the second machine tool mechanism 2 and the third machine tool mechanism 3 are arranged in a straight line, and a straight vibration conveying device 4 is provided between the first machine tool mechanism 1 and the second machine tool mechanism 2 and between the second machine tool mechanism 2 and the third machine tool mechanism 3 for connection.

[0082] Meanwhile, the specific structure and connection method of the needle tube and needle box are existing mature technologies, which will not be elaborated here. The direct vibration conveying device 4 is also an existing mature technology, and its specific structure will not be elaborated here.

[0083] As can be seen from this embodiment, the base, needle holder and needle plate are assembled by the first machine mechanism 1, the needle tube is installed by the second machine mechanism 2, and the needle handle and cap are installed by the third machine mechanism 3. This reduces the number of machines, simplifies the production line, reduces the space occupied, and the first machine mechanism 1, the second machine mechanism 2 and the third machine mechanism 3 are arranged in a straight line, making the whole machine more aesthetically pleasing after installation.

[0084] Example 2:

[0085] This embodiment provides a fully automated assembly line for cosmetic needles, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0086] The first machine tool mechanism 1 includes a first frame 5, a first rotary table 6 mounted on the first frame 5, and a base loading station 7, a base oiling station 8, a needle seat loading station 9, a first pressing station 10, a needle plate loading station 11, a second pressing station 12, and a first sorting station 13 arranged in sequence around the first rotary table 6 on the first frame 5.

[0087] The first pressing station 10 and the second pressing station 12 are respectively provided with a first detection component and a second detection component for detecting the needle holder and the needle plate.

[0088] Meanwhile, eight processing tables are also provided on the first rotary table 6 at equal intervals around the circumference. Among the eight processing tables, seven processing tables correspond to the seven work positions in the first machine tool mechanism 1. On the eight processing tables, if the base loading work position 7 is the first work position, then the seventh processing table does not correspond to any work position.

[0089] Both the base loading station 7 and the needle seat loading station 9 use a vibratory feeder and a direct vibration conveyor 4 for loading. Both use a cross slide and a rotatable loading gripper 85, which is used to grab the base or needle seat from the direct vibration conveyor 4, rotate it 45° and place it on the processing table. The loading gripper 85 is a combination of a rotary cylinder and a pneumatic clamp.

[0090] Both the first pressing station 10 and the second pressing station 12 include a cylinder, a pressing plate driven by the cylinder, and a support assembly installed under the pressing plate. The first and second detection assemblies can be top columns, elastic elements, and inductive switches. The top column passes through the pressing plate and is slidably connected to the pressing plate. A sensing plate is provided on the top column. The elastic element is sleeved on the surface of the top column and is used for resetting the top column after sliding. The inductive switch is provided on the pressing plate and is used to sense the sensing plate. The support assembly includes rollers and a support frame.

[0091] The first sorting station 13 includes a cross slide, a rotary cylinder, a pneumatic clamp, a direct vibration conveyor 4 for conveying qualified products, and a material trough for receiving unqualified products. The material trough is inclined and has a through hole at the lower position. It is driven by the cylinder to move above or below the direct vibration conveyor 4.

[0092] As can be seen from this embodiment, the inner wall of the base is coated with oil through the base oiling station 8, which increases the lubrication effect between the needle seat and the base and improves the convenience of adjusting the needle extension length during subsequent use.

[0093] Furthermore, the use of rotating feeding jaws 85 ensures that the feeding angles of the base, needle holder, and needle plate correspond to the directions of the eight processing tables evenly spaced around the circumference of the first rotary table 6, thereby improving the accuracy of feeding the base, needle holder, and needle plate.

[0094] The first pressing station 10 and the second pressing station 12 use cylinder-driven pressing plates. When the needle seat or needle plate is not installed, the elastic element will not be compressed, and the sensing plate will not be triggered, thus determining an abnormality. When the needle seat or needle plate is installed, the elastic element will be compressed, thus triggering the sensing plate, thus determining normality, improving the degree of automation and ensuring production quality. By moving the material trough, the efficiency of removing defective products is improved, further enhancing the degree of automation.

[0095] Example 3:

[0096] This embodiment provides a fully automated assembly production line for cosmetic needles. In addition to the technical solutions described in the above embodiments, it also has the following technical features: the base oiling station 8 includes:

[0097] The first bracket 80 is mounted on the first frame 5 and is provided with a clamp 81 and a first cross slide 82 for driving the clamp 81 to move.

[0098] Elastic band 83 is fitted onto the output end of clamp 81;

[0099] Oil tank 84 is installed on the side of the first bracket 80 and contains silicone oil;

[0100] The clamp 81 is provided with four grippers 85;

[0101] Meanwhile, the clamp 81 is a pneumatic clamp, and its specific structure and that of the first cross slide 82 are both existing mature technologies, which will not be described in detail here. The elastic band 83 can be made of rubber.

[0102] Furthermore, the specific oiling method is as follows: the first cross slide 82 drives the clamp 81 to move the oil tank 84 to dip in silicone oil, and then moves to the top of the inner wall of the base, drives the four jaws 85 to stretch the elastic band 83, and puts the elastic band 83 against the inner wall of the base. Then the first cross slide 82 drives the jaws 85 to move down to apply oil. After the oiling is completed, the four jaws 85 retract, and the first cross slide 82 drives the pneumatic jaws to move up out of the base.

[0103] As can be seen from this embodiment, the elastic band 83 facilitates the application of silicone oil and makes it easier to adjust the oiling area when used with the clamp 81. The four clamps 85 can effectively correspond to the four corners of the inner wall of the base, ensuring the oiling effect on the inner wall of the base and ensuring the uniformity of the oiling. Furthermore, the clamp 81 facilitates the lifting and lowering of the four clamps 85 within the base. The oiling is performed from top to bottom, which can improve the installation stability of the base on the processing table. Compared with the bottom-up oiling method, it can effectively avoid the situation where the base is lifted due to oiling.

[0104] Example 4:

[0105] This embodiment provides a fully automated assembly line for cosmetic needles, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0106] The needle plate feeding station 11 includes a needle plate feeding assembly 110, a notch detection assembly 111, and a suction assembly 112;

[0107] The needle plate feeding assembly 110 includes:

[0108] The second support 1100 is installed on the first frame 5 and is provided with a material picking plate 1101 and a first cylinder 1102 for driving the material picking plate 1101 to pick up materials.

[0109] The top plate assembly 1103 is installed below the material pick-up plate 1101 and is used to lift the needle plate;

[0110] The notch detection component 111 is mounted on the material receiving plate 1101; and the notch detection component 111 can be a fiber optic sensor; the top plate component 1103 uses a cylinder to push the top block, thereby lifting the needle plate;

[0111] The notch on the needle plate facilitates subsequent glue application, ensuring the glue application effect between the needle plate, the base, and the needle handle.

[0112] As can be seen from this embodiment, the material picking plate 1101 facilitates the individual picking of the needle plate, while the top plate assembly 1103 lifts the needle plate, which facilitates the suction assembly 112 to pick up the needle plate, thus improving production quality. Furthermore, the notch detection assembly 111 can effectively detect the angle of the notch, thereby effectively identifying and adjusting the angle of the needle plate when it is being fed into the plate.

[0113] Example 5:

[0114] This embodiment provides a fully automated assembly production line for cosmetic needles. In addition to the technical solutions described in the above embodiments, it also has the following technical features: the suction component 112 includes:

[0115] The third support 1120 is installed on the first frame 5 and located on the side of the second support 1100. It is provided with a material picking rod 1121 and a second cross slide 1122 for driving the material picking rod 1121 to move.

[0116] The drive component 1123 is mounted on the third bracket 1120 and is used to drive the material picking rod 1121 to rotate;

[0117] The vacuum suction rod 1124 is slidably connected inside the material picking rod 1121, and a vacuum generating device is connected to its top end, which is used to adsorb and grab the top plate.

[0118] The second cylinder 1125 is installed at the output end of the second cross slide 1122 and is used to drive the suction rod to slide along the axial direction of the picking rod 1121.

[0119] The bottom end of the material taking rod 1121 is provided with a material taking cavity 1126, which is used to place the needle plate lifted by the top plate assembly 1103.

[0120] Meanwhile, the drive unit 1123 can be a servo motor, a drive gear mounted on the output shaft of the servo motor, and a driven gear sleeved on the surface of the pick-up rod 1121. The pick-up rod 1121 is also provided with a sensing strip and a U-shaped photoelectric switch for detecting the sensing strip. The second cross slide 1122 and the vacuum generator are both existing mature technologies, and their specific structures will not be described in detail here. The pick-up rod 1121 and the vacuum suction rod 1124 can be coaxially arranged.

[0121] As can be seen from this embodiment, the opening of the material picking chamber 1126 facilitates the insertion of the needle plate by the top plate assembly 1103. The driving component 1123 drives the material picking rod 1121 to rotate, and the angle of the needle plate is precisely adjusted. Then, the needle plate is attracted by the vacuum suction rod 1124 and the vacuum generator, and moved to the top of the processing table and abutted against the base and needle seat. Since the vacuum suction rod 1124 is slidably connected to the material picking rod 1121, the needle plate can be installed by pressing down the vacuum suction rod 1124, which improves the convenience of needle plate installation, ensures the installation of the needle plate, and improves the assembly effect of the needle plate.

[0122] Example 6:

[0123] This embodiment provides a fully automated assembly line for cosmetic needles, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0124] The second machine mechanism 2 includes a second frame 16, a second rotary table 17 mounted on the second frame 16, and a first loading station 18, a needle loading station 19, a third pressing station 20, a needle replacement station 21, a glue dispensing station 22, a fourth pressing station 23, a first curing station 24, a second sorting station 25, and a first sensing station 26 arranged in sequence around the second rotary table 17 on the second frame 16.

[0125] The third pressing station 20 and the fourth pressing station 23 are equipped with visual inspection. Visual inspection is a mature existing technology and will not be described in detail here. The third pressing station 20 and the fourth pressing station 23 are equipped with ejector pins that are the same number of needle tubes and corresponding in position. The ejector pins can be raised and lowered and reset by a spring sleeve, which is used to press the needle tubes to the same height.

[0126] Meanwhile, the first loading station 18 adopts a cross slide table and a rotatable loading gripper 85, and the loading gripper 85 is a rotary cylinder and a pneumatic clamp.

[0127] The second rotary table 17 is also equipped with twelve processing tables at equal intervals around its circumference. The number of needle loading stations 19 is not fixed depending on the number of needles to be assembled. Specifically, when there are nine needles, there are three needle loading stations 19, and three needles are loaded at a time. When there are sixteen needles, there are four needle loading stations 19, and four needles are loaded at a time. The first loading station 18 is the first processing table. If there are nine needles, the fifth processing table does not have a needle loading station 19 or the needle loading station 19 is not used. The twelve processing tables are also equipped with height limiting plates for limiting the height of the needle tips. The height limiting plates are driven by cylinders to lift and lower.

[0128] The specific structure of the needle replacement station 21 is roughly the same as that of the needle loading station 19. The difference is that the needle replacement station 21 feeds one needle tube at a time.

[0129] The second sorting station 25 includes a cross slide, a rotary cylinder, a pneumatic clamp, and a direct vibration conveyor 4. It is also equipped with a qualified product trough and a non-qualified product trough. Non-qualified semi-finished products in the non-qualified product trough are removed manually, and the qualified product trough is connected to the third machine mechanism 3. When the pneumatic clamp grabs the semi-finished product, the height limit plate descends first, and then the pneumatic clamp picks up the semi-finished product.

[0130] The first sensing station 26 is equipped with an infrared sensing device, which is used to detect whether there are unfinished semi-finished products on the processing table.

[0131] The specific structures of dispensing station 22 and first curing station 24 are existing mature technologies and will not be described in detail here. However, it is worth mentioning that dispensing station 22 uses UV adhesive and first curing station 24 uses ultraviolet curing lamp.

[0132] As can be seen from this embodiment, multiple needle tubes are installed in batches through multiple needle loading stations 19, and the first pressing station 10 facilitates pressing the installed needle tubes into place, so that the needle tubes can be at the same height, ensuring product quality. The setting of the height limit plate, together with the spring-returning ejector pin, can further ensure the installation height of the needle tubes. When the second rotating table 17 is removed, the height limit plate is moved down first, which can protect the needle tip of the needle tube.

[0133] The needle replacement station 21 can remedy the situation of missing needles, improve the yield rate, and set the glue dispensing station 22 before the fourth pressing station 23. That is, regardless of whether there is any abnormality in the needle tube, the needle tube is fixed by glue dispensing to prevent the needle tube from falling onto the second rotary table 17 or the second frame 16, thus avoiding safety hazards and improving production safety.

[0134] Example 7:

[0135] This embodiment provides a fully automated assembly production line for cosmetic needles. In addition to the technical solutions described in the above embodiments, it also has the following technical features: the needle loading station 19 includes:

[0136] The fourth bracket 190 is installed on the second rack 16;

[0137] The needle box assembly 191 is mounted on the fourth bracket 190 and is used for feeding the needle tubes;

[0138] The needle guide assembly 192 is mounted on the fourth bracket 190 and is used to guide the needle loading.

[0139] The needle suction assembly 193 is mounted on the fourth bracket 190 and is used to retrieve needles from the needle box assembly 191 and load needles through the needle guide assembly 192.

[0140] The needle box assembly 191 includes a needle storage box connected by a locking buckle and multiple vertically arranged ejector plates for pushing out needle tubes; the needle guide assembly 192 includes a lifting guide plate and a guide block mounted on the guide plate, and the guide block has a guide hole; the needle suction assembly 193 includes a lifting needle suction block, a servo motor for driving the needle suction block to rotate, a vacuum generator connected to the needle suction block, and multiple capillary holes opened on the needle suction block.

[0141] Meanwhile, the ejector plate is set differently depending on the number of needle tubes assembled. Specifically, for nine needle tubes, there are three ejector plates, and each ejector plate lifts a single needle tube, and there are nine guide holes on the guide block. For sixteen needle tubes, there are four ejector plates, and each ejector plate lifts a single needle tube, and there are sixteen guide holes on the guide block.

[0142] As can be seen from this embodiment, the needle suction assembly 193 draws the needle tube into the needle box assembly 191. The needle suction method ensures the convenience of needle picking and putting, and the suction method will not damage the needle tube, thus improving production quality. In addition, the needle guide assembly 192 can improve the needle tube installation accuracy, prevent the needle tube from falling off, avoid safety hazards, and improve production quality.

[0143] Example 8:

[0144] This embodiment provides a fully automated assembly line for cosmetic needles, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0145] The third machine mechanism 3 includes a third frame 27, a third rotary table 28 mounted on the third frame 27, and a second loading station 29, a needle handle loading station 30, a fifth pressing station 31, an adhesive application station 32, a self-leveling station 33, a second curing station 34, a plug and leak testing station 35, a cap loading station 36, a sixth pressing station 37, a needle adjustment station 38, a material unloading station 39, and a second sensing station 40, arranged in sequence around the third rotary table 28 on the third frame 27.

[0146] The fifth pressing station 31 and the sixth pressing station 37 are respectively equipped with a third detection component and a fourth detection component for detecting the needle handle and the cap.

[0147] Meanwhile, twelve processing tables are also arranged at equal intervals around the circumference on the third rotary table 28, and each corresponds to one of the twelve workstations in the third machine tool mechanism 3;

[0148] The second loading station 29 also includes an oil dipping assembly, which uses a cross slide and two sets of grippers 85. Specifically, the first set of grippers 85 includes pneumatic grippers, and the second set of grippers 85 includes a rotary cylinder and pneumatic grippers. The oil dipping assembly includes an oil dipping tank 84. The first set of grippers 85 picks up qualified semi-finished products and places them on the oil dipping tank 84, and then the second set of grippers 85 picks up qualified semi-finished products on the oil dipping tank 84 and places them on the processing table.

[0149] The needle handle feeding station 30 is also equipped with a notch detection component 111, and its specific structure is the same as that of the needle plate feeding component 110 mentioned above. It will not be described again here. However, the needle handle feeding station 30 uses a cross slide, a rotary cylinder and a pneumatic gripper to feed the needle handle.

[0150] The fifth pressing station 31 and the sixth pressing station 37 respectively include a first cylinder for pressing the needle handle into place and a second cylinder for pressing the cap into place. The third detection component and the fourth detection component both include an infrared sensor for detecting the elastic displacement of the first cylinder and the second cylinder in the lifting direction. Specifically, a spring structure can be adopted. When the needle handle and the cap are not installed, the elastic displacement of the first cylinder and the second cylinder cannot be detected, and the infrared sensor cannot be triggered, which means that an abnormality is judged. When the needle handle and the cap are installed, the elastic displacement caused by the obstruction of the first cylinder and the second cylinder can be detected, triggering the infrared sensor, which means that normality is judged.

[0151] The self-leveling station 33 includes a turntable located on the side of the third rotary table 28, pneumatic grippers for gripping, and a slide for driving the pneumatic grippers to rise and fall. There are two pneumatic grippers, and the two pneumatic grippers are switched by a rotary cylinder to exchange the semi-finished products on the third rotary table 28 and the semi-finished products on the turntable. The turntable is provided with six support platforms, and the turntable is provided with an indexer and a drive motor for driving its quantitative rotation.

[0152] The rotating cap loading station 36 includes a cross slide, a pneumatic gripper, and a motor assembly for driving the pneumatic gripper to rotate. The motor assembly includes a servo motor, a drive gear set on the output shaft of the servo motor, and a driven gear connected to the tail of the pneumatic gripper.

[0153] The needle adjustment station 38 includes a cross slide, a servo motor, and a sleeve set on the output shaft of the servo motor. One end of the sleeve is adapted to the groove on the nut, and a U-shaped photoelectric switch for detecting the rotation speed of the servo motor is also provided.

[0154] The second sensing station 40 is the same as the first sensing station 26, and is an infrared sensing device used to detect whether there are unfinished semi-finished products on the processing table.

[0155] The specific structure of the adhesive application station 32 and the second curing station 34 is a mature existing technology, which will not be elaborated here. However, it is worth mentioning that the adhesive application station 32 uses UV adhesive and the second curing station 34 uses an ultraviolet curing lamp.

[0156] The needle handle has a notch that matches the needle plate, which improves the glue application effect, ensures that the glue can enter the needle seat, and improves the connection strength between the needle tube, needle seat, needle plate and needle handle.

[0157] As can be seen from this embodiment, by setting the self-leveling station 33, the effect of gluing is improved, and the connection between the needle holder, needle plate and needle handle is guaranteed; while the notch detection component 111 on the needle handle feeding station 30 can ensure that the notch on the needle handle corresponds to the notch on the needle plate after the needle handle is installed; and the needle adjustment station 38 can retract the needle tube inward, which improves the safety of the finished product packaging after the needle tube is assembled.

[0158] Meanwhile, the second sensing station 40 can detect whether there are finished products or waste products on the processing table, which is convenient for detecting untimely or abnormal material feeding, and prevents damage and safety hazards caused by the continued operation of the production line;

[0159] Meanwhile, the third and fourth detection components in the fifth pressing station 31 and the second pressing station 12 can prevent production assembly from continuing when the needle handle or cap is missing, thus avoiding waste of subsequent raw materials.

[0160] An oil-dipping component is installed at the second feeding station 29. This component provides protection for the needle tip after the oil-dipping process, preventing damage to the needle tip in subsequent processes.

[0161] Example 9:

[0162] This embodiment provides a fully automated assembly production line for cosmetic needles. In addition to the technical solutions described in the above embodiments, it also has the following technical features: the leak detection and plugging station 35 includes:

[0163] The fifth bracket 350 is installed on the third rack 27;

[0164] The air supply assembly 351 is mounted on the fifth bracket 350 and located above the third rotating platform 28, and is used to supply air to the needle handle;

[0165] The venting assembly 352 is mounted on the fifth bracket 350 and located below the third rotating stage 28, and is used for venting the syringe.

[0166] The gas supply assembly 351 includes a first detection unit 353 for detecting the gas supply flow rate, and the exhaust assembly 352 includes a second detection unit 354 for detecting the exhaust flow rate.

[0167] Meanwhile, the air supply assembly 351 includes an air nozzle and an air pump for supplying air to the air nozzle, and the exhaust assembly 352 includes an air guide tube with the same number as the needle tube, and each air guide tube has a second detection unit 354, that is, the number of second detection units 354 is the same as the number of air guide tubes and needle tubes.

[0168] The first detection unit 353 and the second detection unit 354 can be precision flow meters, specifically precision pressure flow meters. Their specific structures, along with those of the air pump, are existing mature technologies and will not be described in detail here.

[0169] As can be seen from this embodiment, by detecting both the supply airflow and the exhaust airflow, the two detection data can be compared to determine whether there is a blockage or leakage in the syringe, thus ensuring the product quality of the syringe assembly. Specifically, when the exhaust airflow is very small or non-existent, the syringe is blocked; when the exhaust airflow is greater than the supply airflow, there is a leak between the syringe and the syringe box.

[0170] Example 10:

[0171] This embodiment provides an assembly method for a fully automated cosmetic needle assembly production line, including the following steps:

[0172] S1: Production line starts;

[0173] S2: The first machine tool mechanism 1 loads the base and applies silicone oil to the inner wall of the base;

[0174] S3: The first machine tool mechanism 1 feeds the needle holder;

[0175] S4: The first machine tool mechanism 1 feeds the needle plate and adjusts the direction of needle plates that are not in the correct direction.

[0176] S5: Qualified first semi-finished products enter the second machine mechanism 2, and unqualified first semi-finished products are unloaded and removed;

[0177] S6: The second machine mechanism 2 performs multiple needle loading and testing, replenishes any missing needles, and tests again;

[0178] S7: The second machine mechanism 2 applies glue to fix the needle tube, and at the same time, the qualified second semi-finished product enters the third machine mechanism 3, and the unqualified second semi-finished product is unloaded and removed.

[0179] S8: The third machine tool mechanism 3 feeds the needle handle and applies glue to fix the needle handle;

[0180] S9: The third machine mechanism 3 performs plugging and leak detection on the needle tube;

[0181] S10: The third machine tool mechanism 3 feeds the rotating cap;

[0182] S11: The third machine tool mechanism 3 adjusts the height of the needle tubes in the needle box;

[0183] S12: Differentiate between qualified and unqualified finished products for material cutting;

[0184] In the following situations, subsequent workstations will stop assembling the abnormal needle box until the abnormal needle box is removed;

[0185] (1) When the first detection component, the second detection component, the third detection component, and the fourth detection component detect an abnormality;

[0186] (2) After the needle tubes of the second machine tool mechanism 2 are loaded multiple times, if visual detection shows that the needle tubes are not installed in place or are bent or tilted, etc.

[0187] (3) If a missing needle is detected visually, the needle will be replaced at the subsequent needle replacement station 21. If a needle abnormality is detected visually again.

[0188] (4) When the needle box is detected on the second rotating table 17 and the third rotating table 28 at the first sensing station 26 and the second sensing station 40;

[0189] (5) When an abnormality is detected at the plugging and leak testing station 35.

[0190] As can be seen from this embodiment, the above assembly method has a high degree of automation, low manual intervention, low product cost, high production efficiency and quality. In the event of an abnormality, subsequent assembly of the workpiece is stopped until the first machine mechanism 1, the second machine mechanism 2, or the third machine mechanism 3 finishes and removes it, thus avoiding waste of subsequent raw materials and saving finished products. Furthermore, after the syringe is assembled and fixed with glue, it is tested for blockage and leakage, which effectively prevents products with blockage or leakage from entering the market, improves the safety of syringe use, and ensures product quality.

[0191] The cross slide, cylinder, rotary cylinder, pneumatic gripper, and servo motor involved in the above embodiments 1-10 are all conventional accessories of existing production lines. Their specific structure, installation method, and model are preferably designed to achieve the above technical effects. This application does not limit them. The production line also includes motors and indexers for driving the first rotary table, the second rotary table, and the third rotary table to rotate. It also has pneumatic components and other electrical components for electrical control to achieve automated assembly. All of these are existing technologies and will not be described in detail here.

[0192] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A fully automated assembly line for cosmetic needles, comprising needle tubes and a needle box for mounting the needle tubes, wherein the needle box includes a base, a needle holder, a needle plate, a needle handle, and a cap, characterized in that, The production line includes: The first machine tool mechanism (1) is used for assembling the base, needle holder and needle plate; The second machine tool mechanism (2) is used for assembling the needle; The third machine tool mechanism (3) is used for assembling the needle handle and the cap; Among them, the first machine platform mechanism (1), the second machine platform mechanism (2) and the third machine platform mechanism (3) are arranged in a straight line, and a straight vibration conveying device (4) is provided between the first machine platform mechanism (1) and the second machine platform mechanism (2) and between the second machine platform mechanism (2) and the third machine platform mechanism (3) for connection; The first machine tool mechanism (1) includes a first frame (5), a first rotary table (6) mounted on the first frame (5), and a base loading station (7), a base oiling station (8), a needle seat loading station (9), a first pressing station (10), a needle plate loading station (11), a second pressing station (12), and a first sorting station (13) arranged in sequence around the first rotary table (6) on the first frame (5). The first pressing station (10) and the second pressing station (12) are respectively provided with a first detection component and a second detection component for detecting the needle seat and the needle plate; The base oiling station (8) includes: The first bracket (80) is mounted on the first frame (5) and is provided with a clamp (81) and a first cross slide (82) for driving the clamp (81) to move. An elastic band (83) is fitted onto the output end of the clamp (81); The oil tank (84) is installed on the side of the first bracket (80) and contains silicone oil; The clamp (81) is provided with four jaws (85).

2. The fully automated assembly line for cosmetic needles according to claim 1, characterized in that: The needle plate feeding station (11) includes a needle plate feeding assembly (110), a notch detection assembly (111), and a suction assembly (112). The needle plate feeding assembly (110) includes: The second bracket (1100) is installed on the first frame (5) and is provided with a material picking plate (1101) and a first cylinder (1102) for driving the material picking plate (1101) to pick up materials. The top plate assembly (1103) is installed below the material pick-up plate (1101) and is used to lift the needle plate; The notch detection component (111) is installed on the material receiving plate (1101).

3. The fully automated assembly line for cosmetic needles according to claim 2, characterized in that, The suction component (112) includes: The third bracket (1120) is mounted on the first frame (5) and located on the side of the second bracket (1100), and is provided with a picking rod (1121) and a second cross slide (1122) for driving the picking rod (1121) to move. The drive unit (1123) is mounted on the third bracket (1120) and is used to drive the material pick-up rod (1121) to rotate; The vacuum suction rod (1124) is slidably connected inside the material picking rod (1121), and a vacuum generating device is connected to the top end, which is used to adsorb and grab the top plate; The second cylinder (1125) is installed at the output end of the second cross slide (1122) and is used to drive the suction rod to slide along the axial direction of the picking rod (1121); The bottom end of the material taking rod (1121) is provided with a material taking cavity (1126), which is used to place the needle plate lifted by the top plate assembly (1103).

4. The fully automated assembly line for cosmetic needles according to claim 1, characterized in that: The second machine mechanism (2) includes a second frame (16), a second rotary table (17) mounted on the second frame (16), and a first loading station (18), a needle loading station (19), a third pressing station (20), a needle replacement station (21), a glue dispensing station (22), a fourth pressing station (23), a first curing station (24), a second sorting station (25), and a first sensing station (26) arranged in sequence around the second rotary table (17) on the second frame (16). Visual inspection is provided in both the third pressing station (20) and the fourth pressing station (23).

5. The fully automated assembly line for cosmetic needles according to claim 4, characterized in that, The needle loading station (19) includes: The fourth bracket (190) is mounted on the second frame (16); The needle box assembly (191) is mounted on the fourth bracket (190) and is used for feeding the needle tube; The guide needle assembly (192) is mounted on the fourth bracket (190) and is used to guide the needle loading; The needle suction assembly (193) is mounted on the fourth bracket (190) and is used to retrieve needles from the needle box assembly (191) and load needles via the needle guide assembly (192).

6. The fully automated assembly line for cosmetic needles according to claim 1, characterized in that: The third machine mechanism (3) includes a third frame (27), a third rotary table (28) mounted on the third frame (27), and a second loading station (29), a needle handle loading station (30), a fifth pressing station (31), an adhesive application station (32), a self-leveling station (33), a second curing station (34), a plug and leak testing station (35), a cap loading station (36), a sixth pressing station (37), a needle adjustment station (38), a material unloading station (39), and a second sensing station (40) arranged in sequence around the third rotary table (28) on the third frame (27). The fifth pressing station (31) and the sixth pressing station (37) are respectively equipped with a third detection component and a fourth detection component for detecting the needle handle and the cap.

7. The fully automated assembly line for cosmetic needles according to claim 6, characterized in that, The leak detection station (35) includes: The fifth bracket (350) is mounted on the third frame (27); An air supply assembly (351) is mounted on the fifth bracket (350) and located above the third rotating platform (28), and is used to supply air to the needle handle; The venting assembly (352) is mounted on the fifth bracket (350) and located below the third rotating platform (28), and is used for venting the syringe. The gas supply assembly (351) includes a first detection unit (353) for detecting the gas supply flow rate, and the exhaust assembly (352) includes a second detection unit (354) for detecting the exhaust flow rate.

8. An assembly method for use in the fully automated assembly production line for cosmetic needles according to any one of claims 1-7, characterized in that, Includes the following steps: S1: Production line starts; S2: The first machine tool (1) loads the base and applies silicone oil to the inner wall of the base; S3: The first machine tool mechanism (1) feeds the needle seat; S4: The first machine tool mechanism (1) feeds the needle plate and adjusts the direction of the needle plate that is not in the correct direction; S5: The qualified first semi-finished product enters the second machine mechanism (2), and the unqualified first semi-finished product is unloaded and removed; S6: The second machine mechanism (2) performs multiple needle loading and testing of the needle tubes, replenishes any missing needle tubes, and tests again; S7: The second machine mechanism (2) applies glue to fix the needle tube, and at the same time, the qualified second semi-finished product enters the third machine mechanism (3), and the unqualified second semi-finished product is unloaded and removed. S8: The third machine tool (3) feeds the needle handle and applies glue to fix the needle handle; S9: The third machine mechanism (3) performs plugging and leak testing on the needle tube; S10: The third machine tool mechanism (3) feeds the rotating cap; S11: The third machine mechanism (3) adjusts the height of the needle tubes in the needle box; S12: Differentiate between qualified and unqualified finished products for material cutting.

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