A cover screwing device

Abstract

The present invention discloses a cover screwing device, comprising: a cover taking mechanism, including a cover fixing head, a cover taking lifting mechanism for driving the cover fixing head to move up and down, and a cover taking translation driving mechanism for driving the cover fixing head to move from a cover taking position to a cover dropping position along a first horizontal direction; a material moving mechanism for moving a cover-mounting body at the cover dropping position to a cover screwing position along a second horizontal direction; a material pressing mechanism for pressing down and fixing the cover-mounting body entering the cover screwing position; and a cover screwing mechanism for screwing and fixing the cover on the cover-mounting body at the cover screwing position. In the cover screwing device, the cover mounting and cover screwing operations are completed mechanically by various components, which not only ensures that the entire operation process is neat and clean, but also helps to control the fixing degree of each cover. At the same time, the cover screwing position and the cover dropping position are distinguished, so that the overall structure works simply and orderly, and the entire cover screwing process is more reliable. In summary, the cover screwing device can effectively solve the problem of poor cover fixing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of tool equipment, and more specifically, to a cover body screwing device. Background Art

[0002] In the medical device industry, there are many caps with internal threads and parts with external threads that are tightened together. The caps are required to be tightened to a moderate tightness, without air or liquid leakage, and without causing damage to the product appearance. During the assembly process, manual tightening is usually used, but the tightness of manual tightening varies, and the labor intensity is high and the work efficiency is low. The current cap tightening equipment has poor stability, and the tightening force control design is not ideal. Excessive tightening force will cause damage to the product, and too little tightening force cannot achieve the purpose of antibacterial. The tightening force cannot be specific, the torque cannot be adjusted quickly and conveniently, the structure is complex and the price is expensive.

[0003] With the increasing requirements for mechanization and automation of medical device assembly, a high-productivity, simple-structure, and stable-performance screwing device is urgently needed on modern assembly production lines for threaded cap-type tightening structures to meet the needs of efficient production.

[0004] In summary, how to effectively solve the problem of poor cover fixing effect is a problem that technicians in this field urgently need to solve. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a cover screwing device, which can effectively solve the problem of poor cover fixing effect.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A cover screwing device, comprising:

[0008] The capping mechanism comprises a cap fixing head, a capping lifting mechanism for driving the cap fixing head to move up and down, and a capping translation driving mechanism for driving the cap fixing head to move from a capping position to a cap dropping position along a first horizontal direction;

[0009] A material moving mechanism, used for moving the cover-loading body at the cover-dropping position to the cover-tightening position along a second horizontal direction;

[0010] A material pressing mechanism, used to press down and fix the cap-mounting body that has entered the cap-screwing position;

[0011] The cover screwing mechanism is used to screw and fix the cover body on the cover mounting body located at the cover screwing position.

[0012] In the cover body screwing device, when used, after the cover bodies are sequentially transported to the cover removing position, the cover removing mechanism takes the cover bodies away and places them on the cover loading body at the cover dropping position, and then the material moving mechanism transports the placed cover loading body to the cover screwing position, and the material pressing mechanism presses and fixes the cover loading body, wherein the cover screwing mechanism screws the cover body to complete the entire cover installation operation. In the cover body screwing device, the cover installation and cover screwing operations are completed mechanically by various components, which not only ensures that the entire operation process is neat and clean, but also helps to control the degree of fixation of each cover body. At the same time, the cover screwing position and the cover dropping position are distinguished, so that the overall structure works simply and orderly, and the entire cover screwing process is more reliable. In summary, the cover body screwing device can effectively solve the problem of poor cover fixing effect.

[0013] Preferably, it also includes a straightening mechanism, and the straightening mechanism is used to straighten the cover-mounting body located at the cover-dropping position.

[0014] Preferably, the cap fixing head includes a nut mounting seat installed on the cap removing and lifting mechanism, a screw nut installed on the nut mounting seat, and a vertical screw rod matching the screw nut, the lower end of the vertical screw rod is fixedly connected to a suction nozzle, and the upper end is connected to a connector for connecting to a negative pressure source.

[0015] Preferably, the straightening mechanism comprises:

[0016] A straightening air claw is used to clamp and straighten the cover-mounting body located at the cover-dropping position;

[0017] The straightening translation driving mechanism is used to drive the straightening air claw to move along the first horizontal direction to enter and exit the cover-dropping position.

[0018] Preferably, the cap screwing mechanism comprises:

[0019] Twist the air claw;

[0020] The disc member is slidably connected to the seat body of the screwing air claw through a plurality of positioning shafts arranged in parallel, and an elastic member is arranged between them to prevent relative approach movement in the up and down directions;

[0021] A servo motor, used for driving the disc to rotate;

[0022] The lifting cylinder is screwed to drive the servo motor to move up and down.

[0023] Preferably, it also includes a cover separating mechanism for pushing the cover bodies to the cover removing position one by one and a cover sending mechanism for sorting the multiple cover bodies one by one and sending them to the cover separating mechanism respectively.

[0024] Preferably, it also includes a controller, and the controller controls in sequence according to the following steps:

[0025] After the cap separating mechanism delivers the cap body to the cap removing position, the cap fixing head of the cap removing mechanism falls to take the cap, rises a predetermined distance and then moves horizontally to the cap dropping position, and after the straightening mechanism straightens the cap loading body at the cap dropping position, the cap fixing head falls to drive the cap body to fall on the cap loading body at the cap loading position and continues to fall to pre-tighten by driving the cap fixing head;

[0026] Control the cap fixing head to reset, and control the material shifting mechanism to drive the cap mounting body to move to the cap screwing position;

[0027] The material pressing mechanism and the capping mechanism are controlled to work, and after the capping is completed, the material pressing mechanism, the material moving mechanism and the capping mechanism are controlled to reset.

[0028] Preferably, the cover separation mechanism comprises:

[0029] The material guide block has a material guide notch corresponding to the material discharge of the cover separation mechanism.

[0030] A material dividing block, wherein the material dividing groove corresponds to the material guiding notch;

[0031] A material dividing translation driving mechanism, used for driving the material dividing block to move along the second horizontal direction, so as to drive the material dividing groove to disengage from the material guiding notch and close the material guiding notch, and drive the material dividing groove to enter the cover removing position;

[0032] The limit sensor is used to limit the movement of the material distribution block.

[0033] Preferably, it comprises a plurality of cover removing positions arranged in parallel along the second horizontal direction, and each corresponding component is provided with a corresponding number of working parts so as to be able to perform corresponding operations on each of the parallel cover bodies and the cover installing bodies respectively at the same time.

[0034] Preferably, the pressing mechanism comprises:

[0035] Two pressing forks are used to respectively press and fix the two cover bodies arranged in parallel;

[0036] A T-shaped plate, arranged between the two pressing forks, with the two ends of the crossbar portion respectively fixedly connected to the two pressing forks via elastic devices capable of elastic deformation in the vertical direction;

[0037] A material pressing lifting driving mechanism, wherein the middle portion of the horizontal rod portion of the T-shaped plate and the driving end of the material pressing lifting driving mechanism are relatively fixed in the vertical direction, and the middle vertical rod portion of the T-shaped plate and the mounting seat of the material pressing lifting driving mechanism are guided and limited by a vertically extending guide rod;

[0038] The material pressing translation driving mechanism is used to drive the mounting seat of the material pressing lifting driving mechanism to move along the first horizontal direction to enter and exit the capping position. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 A schematic diagram of the structure of a cover screwing device provided in an embodiment of the present invention;

[0041] Figure 2 A schematic diagram of the structure of a screwing device body provided in an embodiment of the present invention;

[0042] Figure 3 A schematic diagram of the structure of various components of the cover drop position provided by an embodiment of the present invention;

[0043] Figure 4 A schematic diagram of the structure of various components of the cover screwing position provided by an embodiment of the present invention;

[0044] Figure 5 A schematic structural diagram of a material pressing mechanism provided in an embodiment of the present invention;

[0045] Figure 6 A schematic structural diagram of a righting mechanism provided in an embodiment of the present invention.

[0046] The following are marked in the accompanying drawings:

[0047] Cap feeding mechanism 100, screwing device body 200;

[0048] Vibrating plate 100-1, direct vibration 100-2, material channel 100-3;

[0049] Capping mechanism 1, material moving mechanism 2, cap removing mechanism 3, straightening mechanism 4, cap screwing mechanism 5, material pressing mechanism 6;

[0050] The material distribution translation drive mechanism 101, the cover distribution frame 102, the slide cylinder 201, the cover removal translation drive mechanism 301, the cover removal lifting mechanism 302, the second straightening air claw 401, the first straightening air claw 402, the straightening translation drive mechanism 403, the screwing lifting cylinder 501, the second servo motor 502, the first servo motor 503, the first screwing air claw 504, the second screwing air claw 505, the screwing mechanism frame 506, the material pressing lifting drive mechanism 601, and the material pressing translation drive mechanism 602;

[0051] Material dividing block 1-1, first limit 1-2, material guide block 1-3, material dividing mounting plate 1-4, first guide rail assembly 1-5, second limit 1-6, first movable plate 2-1, second cover body fixture 2-2, first cover body fixture 2-3, material taking frame 3-1, material taking mounting plate 3-2, upper and lower cylinder limit blocks 3-3, second screw nut 3-4, first screw nut 3-5, nut mounting seat 3-6, first screw 3-7, second screw 3-8, second movable plate 3-9, first suction nozzle 3- 10, second suction nozzle 3-11, straightening fixed plate 4-1, third movable plate 4-2, first clamping jaw group 4-3, straightening translation fixed frame 4-4, second guide rail assembly 4-5, second clamping jaw group 4-6, second motor seat 5-1, second air block seat 5-2, first rotating air block 5-3, first flange plate 5-4, first flange shaft 5-5, first seat bearing 5-6, first disc 5-7, first air claw seat 5-8, first screwing clamping jaw group 5-9, second screwing clamping jaw group 5-10, limit Position block 5-11, second air claw seat 5-12, first guide shaft 5-13, second guide shaft 5-14, second disc 5-15, vertical plate 5-16, second seat bearing 5-17, second flange shaft 5-18, second flange plate 5-19, second rotating air distributor 5-20, first air distributor seat 5-21, third guide rail assembly 5-22, fourth movable plate 5-23, first motor seat 5-24, floating joint 5-25, lifting cylinder fixing bracket 5-26, second guide shaft 6-1, Linear bearing 6-2, press material lifting drive mechanism seat 6-3, fifth movable plate 6-4, sixth movable plate 6-5, fourth guide rail assembly 6-6, clamping fixing plate 6-7, first clamping fork 6-8, fifth guide rail assembly 6-9, second clamping fork 6-10, second hinge pin 6-11, seventh movable plate 6-12, T-plate 6-13, first hinge pin 6-14, first groove 1-1-1, second groove 1-1-2, first material guide port 1-3-1, second material guide port 1-3-2. DETAILED DESCRIPTION

[0052] The embodiment of the invention discloses a cover body screwing device to effectively solve the problem of poor cover body fixing effect.

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] See also Figure 1-Figure 6 , Figure 1 A schematic diagram of the structure of a cover screwing device provided in an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a screwing device body provided in an embodiment of the present invention; Figure 3 A schematic diagram of the structure of various components of the cover drop position provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structure of various components of the cover screwing position provided by an embodiment of the present invention; Figure 5 A schematic structural diagram of a material pressing mechanism provided in an embodiment of the present invention; Figure 6 A schematic structural diagram of a righting mechanism provided in an embodiment of the present invention.

[0055] In a specific embodiment, the present embodiment provides a cover body screwing device for screwing the cover body onto the cover body. Specifically, the cover body screwing device includes a cover taking mechanism 3, a material moving mechanism 2, a material pressing mechanism 6 and a cover screwing mechanism 5.

[0056] The cover taking mechanism 3 is used to transport the cover body at the cover taking position to the cover dropping position, and drop the cover body on the cover loading body at the cover dropping position. Specifically, the cover taking mechanism 3 includes a cover fixing head (mainly a first suction nozzle 3-10 and a second suction nozzle 3-11), a cover taking lifting mechanism 302 and a cover taking translation driving mechanism 301. The cover fixing head is a component that can fix the cover body as needed and can loosen the cover body as needed, such as an electric clamping member that can be electrically clamped and fixed when needed to drive the cover body to move with the cover fixing head, or a suction nozzle.

[0057] The cap-taking lifting mechanism 302 is used to drive the cap-fixing head to move up and down. When in the cap-taking position, the cap-fixing head is first driven to descend to the cap body, and then the cap-fixing head starts working to fix the cap body, and then the cap-taking lifting mechanism 302 drives the cap body to rise, so as to facilitate the subsequent driving of the cap body to the cap-dropping position. After the cap-fixing head moves to the cap-dropping position, the cap-taking lifting mechanism 302 drives the cap-fixing head to descend, so as to drive the cap body to fall on the threaded column of the cap body, and then the cap-fixing head releases the cap body and is driven by the cap-taking lifting mechanism 302 to rise to restore the original position.

[0058] The cap removal translation driving mechanism 301 is used to drive the cap fixing head to move from the cap removal position to the cap placement position along the first horizontal direction, so as to cooperate with the cap removal lifting mechanism 302, so that the cap fixing head drives the cap body to fall on the cap mounting body. It should be noted that the cap removal lifting mechanism 302 and the cap removal translation driving mechanism 301 can both adopt hydraulic telescopic cylinders or pneumatic telescopic cylinders, and the cap removal translation driving mechanism 301 can also have directional movement in other directions besides the first horizontal direction.

[0059] After the cover removal mechanism 3 places the cover body on the cover mounting body, the material moving mechanism 2 is used to move the cover mounting body at the cover dropping position to the cover screwing position along the second horizontal direction. It should be noted that the second horizontal direction is preferably arranged perpendicular to the first horizontal direction. The material moving mechanism 2 mainly includes a material holding platform (such as the first moving plate 2-1) and a moving driving mechanism (such as a slide cylinder 201) for driving the material holding platform to move.

[0060] After the material moving mechanism 2 moves the cover body with the cover body to the cover screwing position, the material pressing mechanism 6 is used to press down and fix the cover body entering the cover screwing position to prevent the cover body from shaking randomly during the cover screwing process. The material pressing mechanism 6 generally presses down the shoulders on both sides of the cover mounting part of the cover body to fix the cover body.

[0061] After the material pressing mechanism 6 completes the material pressing, the cap screwing mechanism 5 screws and fixes the cap body on the cap-mounting body at the cap screwing position. It should be noted that the cap body and the cap-mounting body are threadedly connected so that the cap body can be screwed and fixed to the cap-mounting body. The cap screwing mechanism 5 mainly includes a gripping head for fixing the cap body and a driving mechanism for driving the gripping head to rotate, so that when the gripping head is driven to rotate, the cap body is driven to rotate, thereby fixing the cap body on the cap-mounting body.

[0062] In the cover body screwing device, when used, after the cover body is sequentially conveyed to the cover removing position, the cover removing mechanism 3 takes the cover body away and places it on the cover loading body at the cover dropping position, and then the material moving mechanism conveys the cover loading body with the cover body placed thereon to the cover screwing position, and the material pressing mechanism 6 presses and fixes the cover loading body, wherein the cover screwing mechanism 5 screws the cover body together to complete the entire cover loading operation. In the cover body screwing device, the cover loading and cover screwing operations are mechanically completed by various components, which not only ensures that the entire operation process is neat and clean, but also helps to control the degree of fixation of each cover body. At the same time, the cover screwing position and the cover dropping position are distinguished, so that the overall structure works simply and orderly, and the entire cover screwing process is more reliable. In summary, the cover body screwing device can effectively solve the problem of poor cover fixing effect.

[0063] Furthermore, considering that when the cover body is placed in the bearing position of the material shifting mechanism 2, the cover body is not placed properly and is prone to tilting, so that when the cover is dropped, the cover body is not placed in a good position and is prone to fall off. Based on this, it is preferred that a straightening mechanism 4 is also included here, wherein the straightening mechanism 4 is used to straighten the cover body in the drop position, and specifically how to straighten it, how to perform corresponding operations on the inclined surface of the cover body, and how to set the corresponding limiting wall to push the cover body through the limiting wall, so that the cover body moves to the corresponding side of the cover body and fits with the limiting surface of the limiting wall.

[0064] Specifically, a more specific straightening mechanism may include straightening air claws (first straightening air claws 402, second straightening air claws 401) and straightening translation drive mechanism 403. The straightening air claws are pneumatic clamping claws, which form a groove structure that matches the corresponding part of the cover body in the clamping state, that is, the claw surface of the pneumatic clamping claw, that is, the part that constitutes the groove, forms a limiting wall. When multiple claws are close together to clamp and close, the groove is closed to push the cover body from all sides, thereby straightening the cover body.

[0065] The straightening and translational driving mechanism 403 is used to drive the straightening and translational driving mechanism 403 to move along the first horizontal direction to enter and exit the cover-dropping position. When the cover body is placed, the straightening and translational driving mechanism 403 drives the straightening and translational driving mechanism 403 to enter the cover-dropping position, and then the straightening and translational driving mechanism 403 drives the straightening and translational driving mechanism 403 to enter the cover-dropping position, and then the straightening and translational driving mechanism 403 clamps the cover body at the cover-dropping position to achieve the straightening effect. Then the cover-taking mechanism places the cover body on the cover body, and then the straightening and translational driving mechanism 403 releases the straightening and translational driving mechanism 403 to move the straightening and translational driving mechanism 403 to exit the cover-dropping position.

[0066] As described above, the fixed cover head can also adopt a clamping mechanism, but the clamping operation is inconvenient. Here, the preferred fixed cover head includes a nut mounting seat 3-6 installed on the cover removal lifting mechanism 302, a screw nut (a first screw nut 3-5, a second screw nut 3-4) installed on the nut mounting seat 3-6, and a vertical screw (a first screw nut 3-7, a second screw nut 3-8) matched with the screw nut. The lower ends of the vertical screws (the first screw 3-7, the second screw 3-8) are respectively fixed with suction nozzles (a first suction nozzle 3-10, a second suction nozzle 3-11), and the upper ends are connected with a connector for connecting to a negative pressure source. The fixed cover head is provided with a suction nozzle, so that when the cover body needs to be fixed, the suction nozzle fits the top disk of the cover body to fix it by adsorption. When the suction nozzle stops sucking negative pressure, the cover body can be loosened. A screw nut transmission mechanism is provided between the suction nozzle and the cover removal lifting mechanism to achieve a pre-tightening effect when the cover body is lowered.

[0067] The cap screwing mechanism may specifically include a screwing air claw (a first screwing air claw 504, a second screwing air claw 505), a disc member (a first disc member 5-7, a second disc member 5-15), a servo motor (a first servo motor 503, a second servo motor 502) and a screwing lifting cylinder 501, wherein the disc member and the seat of the screwing air claw are slidably connected by a plurality of positioning shafts arranged in parallel, and an elastic member is arranged between them to prevent relative movement in the up and down directions, and the elastic member plays a pre-tightening role. Through the elastic member, the screwing air claw has a certain automatic adjustment space in the up and down directions relative to the disc member.

[0068] When the disc rotates, the seat of the screwing claw is driven to rotate through a plurality of parallel positioning shafts, and then the screwing claw is driven to rotate. Subsequently, the screwing claw has downward activity space under the action of the elastic member, so that the cover body can be screwed in downward, and in order to better control the screwing degree, it is preferred that the elastic member restores the initial state when the cover body is screwed and fixed. The specific elastic member can be a compression spring sleeved on the positioning shaft. Specifically, the seat of the screwing claw can also be a disc structure, which is coaxially arranged with the above-mentioned disc. Specifically, three guide columns can be provided to be evenly distributed around the middle axis of the disc.

[0069] The servo motor is used to drive the disc to rotate, so as to drive the screwing claw to rotate, thereby realizing the screwing operation. The screwing lifting cylinder is used to drive the servo motor to lift and lower, so as to drive the screwing claw to lift and lower by driving the servo motor to lift and lower, so as to lower and clamp the cover when the cover needs to be screwed, and drive the screwing claw to withdraw from the current position after the screwing is completed.

[0070] Furthermore, in order to facilitate the cap removal by the cap removing mechanism, it is preferred that a cap separating mechanism and a cap delivering mechanism are also included, wherein the cap separating mechanism is used to push the cap bodies one by one to the cap removing position, and the cap delivering mechanism is used to sort multiple cap bodies one by one and deliver them to the cap separating mechanism respectively.

[0071] Specifically, the cover separation mechanism includes a material guide block, a material separation block, a material separation translation drive mechanism and a limit sensor. The material guide block has a material guide notch corresponding to the material discharge of the cover separation mechanism, and the material separation groove of the material separation block corresponds to the material guide notch; and the material separation translation drive mechanism is used to drive the material separation block to move along the second horizontal direction, so as to drive the material separation groove to disengage from the material guide notch and close the material guide notch, and drive the material separation groove to enter the cover removal position, so as to drive the cover body in the material separation groove to enter the cover removal position. The limit sensor (first limit 1-2, second limit 1-6) is used to limit the movement of the material separation block 1-1.

[0072] Furthermore, in order to better realize automated operation, a controller is preferably provided here, and the controller controls in sequence according to the following steps: after the cover separating mechanism delivers the cover body to the cover removing position, the cover fixing head of the cover removing mechanism falls to remove the cover, rises a predetermined distance and then moves horizontally to the cover dropping position, and after the straightening mechanism straightens the cover mounting body located at the cover dropping position, the cover fixing head descends to drive the cover body to fall on the cover mounting body at the cover mounting position and continues to fall to pre-tighten by driving the cover fixing head; controls the cover fixing head to reset, and controls the material moving mechanism to drive the cover mounting body to move to the cover screwing position; controls the material pressing mechanism and the cover screwing mechanism to work, and controls the material pressing mechanism, the material moving mechanism and the cover screwing mechanism to reset after the cover screwing is completed, and each component returns to its original position.

[0073] Furthermore, in order to screw the lid better and faster, it is preferred that a plurality of lid removing positions are arranged in parallel along the second horizontal direction, and each corresponding component is provided with a corresponding number of working parts so as to be able to perform corresponding operations on each of the parallel lid bodies and the lid-mounting bodies at the same time. Specifically, if two lid removing positions are provided, the material guide block is provided with two material guide notches, and the material dividing block is provided with two material dividing grooves. Correspondingly, the lid removing mechanism 3 is provided with two lid fixing heads, which are respectively installed on the lid removing lifting mechanism 302. Correspondingly, the material moving mechanism 2 has two lid-mounting installation positions, and the corresponding straightening mechanism 4 has two straightening air claws, which are driven by a straightening translation driving mechanism. The material pressing mechanism 6 is provided with two material pressing components, and the lid screwing mechanism 5 is provided with two servo motors, and each servo motor drives the corresponding disc member and the screwing air claws installed on the disc member.

[0074] Correspondingly, in order to better set up the pressing mechanism, the pressing mechanism is preferably included here: two pressing forks (a first pressing fork 6-8, a second pressing fork 6-10) to respectively press and fix the two cover bodies arranged in parallel; a T-shaped plate 6-13, which is arranged between the two pressing forks, and the two ends of the cross bar are respectively fixedly connected to the two pressing forks through elastic devices that can elastically deform in the vertical direction; a pressing lifting drive mechanism 601, in which the middle part of the cross bar of the T-shaped plate 6-13 and the driving end of the pressing lifting drive mechanism are relatively fixed in the vertical direction, and the middle vertical bar part of the T-shaped plate and the mounting seat of the pressing lifting drive mechanism are guided and limited by a vertically extending guide rod; a pressing translation drive mechanism 602, which is used to drive the mounting seat of the pressing lifting drive mechanism to move along the first horizontal direction to enter and exit the cover screwing position.

[0075] In another specific embodiment, a specific structure of a double-station cover body screwing device is provided, wherein the cover body is mainly a sterile cap, and the cover body is mainly an artificial nose upper shell. The screwing device as a whole mainly includes a cover feeding mechanism 100 and a screwing device body 200.

[0076] The cover feeding mechanism 100 includes a vibration plate 100-1, a direct vibration 100-2 and a material channel 100-3, wherein the vibration plate 100-1 is provided with a spiral discharge channel, wherein the spiral discharge channel of the vibration plate 100-1 is connected with the external material channel 100-3, wherein a direct vibration 100-2 is provided under the material channel 100-3 to give vibration to the material channel 100-3 through direct vibration to ensure discharge.

[0077] The screwing device body 200 includes a cap separating mechanism 1 , a material moving mechanism 2 , a cap removing mechanism 3 , a straightening mechanism 4 , a cap screwing mechanism 5 and a material pressing mechanism 6 .

[0078] The outlet of the material channel 100-3 of the cover delivery mechanism 100 is connected with the material guide block 1-3 of the cover separation mechanism 1, and the cover body can pass through the first material guide port 1-3-1 and the second material guide port 1-3-2 set on the material guide block 1-3, where the first material guide port and the second material guide port are the above-mentioned material guide notches. Enter the material separation grooves set on the material separation block 1-1 of the cover separation mechanism 1, namely the first groove 1-1-1 and the second groove 1-1-2, wherein the first groove 1-1-1 is set correspondingly to the first material guide port 1-3-1, and the second groove 1-1-2 is set correspondingly to the second material guide port 1-3-2. The cap removing mechanism 3 is arranged at a position above and slightly behind the material distributing mechanism 1, and the first suction nozzle 3-10 and the second suction nozzle 3-11, as the main part of the cap fixing head, are connected with the cap body on the material distributing block 1-1 to respectively adsorb and fix the cap body at the first groove 1-1-1 and the second groove 1-1-2, and the material moving mechanism 2 is located at a lower rear position of the cap distributing mechanism 1, and the straightening mechanism 4 is located directly below the cap removing mechanism 3 and at the rear of the material moving mechanism 2, the cap screwing mechanism 5 is parallel to the cap removing mechanism 3 and is located to the right of the cap removing mechanism 3, that is, at the cap screwing position, and the material pressing mechanism 6 is located at a lower position directly in front of the cap screwing mechanism 5 and at the right of the cap distributing mechanism 1. It should be noted that the left-right direction in the context is the second horizontal direction mentioned above, and the front-back direction in the context is the first horizontal direction mentioned above.

[0079] The cover dividing mechanism 1 includes a vertical cover dividing frame 102, on which a horizontal material dividing mounting plate 1-4 is arranged, on which a material guide block 1-3 is vertically arranged, and a material dividing block 1-1 is placed at the same height as the material guide block 1-3, and below which a first guide rail assembly is installed to be slidably connected to the material dividing mounting plate 1-4, and one side of the material dividing block 1-1 is connected to a piston rod of a material dividing translation driving mechanism 101, so that the material dividing block 1-1 can move left and right under the drive of the material dividing translation driving mechanism 101.

[0080] The movement of the dividing block 1-1 of the covering mechanism 1 is limited by the first limit 1-2 and the second limit 1-6 to control the moving position of the dividing block 1-1, wherein the first limit 1-2 is that when the dividing groove moves to align with the material guide notch, the dividing translation drive mechanism 101 is controlled to stop driving the dividing block 1-1, and the second limit 1-6 is that when the dividing groove moves to correspond to the fixed covering head, the dividing block 1-1 is controlled to stop moving.

[0081] It should be noted that the material guide notches and the material dividing grooves are adapted to the size of the cover body, that is, the first material guide port 1-3-1 and the second material guide port 1-3-2 provided on the material guide block 1-3, and the first groove 1-1-1 and the second groove 1-1-2 provided on the material dividing block 1-1, can only accommodate one cover body, that is, they are adapted to the size of the cover body.

[0082] The cover body passes through the vibration plate 100-1, enters the material channel 100-3, and then passes through the material guide gap of the material guide block 1-3, and then enters the material dividing groove on the material dividing block 1-1. When the sensor above the material dividing block 1-1 senses the cover body in the material dividing groove, the material dividing translation drive mechanism 101 moves to drive the material dividing block 1-1. At this time, the material dividing gap on the material guide block 1-3 is blocked, thereby achieving the purpose of covering the material. Of course, other material dividing methods can also be adopted.

[0083] The material transfer mechanism 2 includes a horizontally placed slide cylinder 201 that can move left and right. A first moving plate 2-1 is installed on the upper part of the slide of the slide cylinder. A first cover body clamp 2-3 and a second cover body clamp 2-2 are arranged on the upper part of the first moving plate 2-1 for clamping and fixing the cover body, which is generally a groove structure capable of clamping and fixing a column. The relative position of the first cover body clamp 2-3 and the second cover body clamp 2-2 corresponds to the position of the first groove and the second groove on the material dividing plate 1-1.

[0084] The cover taking mechanism 3 includes a cover taking translational driving mechanism 301 and a material taking frame 3-1. A material taking mounting plate 3-2 is horizontally arranged on the material taking frame 3-1. A cover taking translational driving mechanism 301 is arranged on the material taking mounting plate 3-2. The moving direction of the cover taking translational driving mechanism 301, i.e., the first horizontal direction mentioned above, i.e., the front-back direction, is preferably perpendicular to the direction of the material dividing translational driving mechanism 101. A cover taking lifting mechanism 302 is installed on the front push plate of the cover taking translational driving mechanism 301, and a second moving plate 3-9 is horizontally installed on the push plate of the cover taking lifting mechanism 302. The upper portion of the second moving plate 3-9 A nut mounting seat 3-6 is installed through the column, and a first screw nut 3-5 and a second screw nut 3-4 are installed on the nut mounting seat 3-6. The first screw nut 3-5 and the second screw nut 3-4 are matched with the first screw nut 3-7 and the second screw nut 3-8, respectively, and the first screw 3-7 and the second screw nut 3-8 are respectively fixed with a first suction nozzle 3-10 and a second suction nozzle 3-11 at the lower ends, and the first screw 3-7 and the second screw 3-8 are connected with an air joint at the upper ends, and a negative pressure channel is set in the middle of the first screw and the second screw to connect the air joint with the corresponding first suction nozzle and the second suction nozzle. The air joint of the first screw and the air joint of the second screw are connected to a vacuum generator and a barometer, and the vacuum generator is used to achieve the purpose of vacuuming and sucking the cover body.

[0085] The straightening mechanism 4 includes a straightening fixed plate 4-1, on which a second guide rail assembly 4-5 is installed at a central position. The length direction of the second guide rail assembly, i.e., the first horizontal direction, i.e., the front-to-back direction, is preferably parallel to the movement direction of the cover removal translation drive mechanism 301. A third movable plate 4-2 is installed on the slider of the second guide rail assembly 4-5 so that the third movable plate is slidably connected with the straightening fixed plate 4-1. A first straightening air gripper 402 and a second straightening air gripper 401 are symmetrically installed below the third movable plate 4-2, and the clamping direction is outward. The first clamping jaw assembly 4-3 and the second clamping jaw assembly 4-6 are respectively installed on the first straightening air gripper 402 and the second straightening air gripper 401. The rear of the third movable plate 4-2 is connected to the piston rod of the straightening translation drive mechanism 403, and the straightening translation drive mechanism 403 is fixed to the straightening fixed straightening fixed plate 4-1 through a straightening translation fixed frame 4-4.

[0086] The cap screwing mechanism 5 includes a cap screwing frame 506, on which a vertical plate 5-16 is mounted, and a vertical downward screw lifting cylinder 501 is mounted at the top of the vertical plate 5-16 through a lifting cylinder fixing frame 5-26, and a floating joint 5-25 is mounted at the lower end of the screw lifting cylinder 501, and a fourth moving plate 5-23 is mounted below the floating joint 5-25, and the lower part of the fourth moving plate 5-23 is fixedly connected to the slider of the third guide rail assembly 5-22, and the guide rail of the third guide rail assembly 5-22 is vertically mounted on the vertical plate 5-16. 6, and on the fourth movable plate 5-23, a second motor base 5-1 and a first motor base 5-24 are symmetrically arranged, on which a first servo motor 503 and a second servo motor 502 are respectively mounted, two couplings and a primary rotating shaft are respectively mounted below the first servo motor 503 and the second servo motor 502, and the fixed ends of the second rotating air distributor block 5-20 and the first rotating air distributor block 5-3 are respectively mounted below the primary rotating shaft, and the rotating ends of the first rotating air distributor block 5-3 and the second rotating air distributor block 5-20 are respectively connected to the first flange plate 5-4 and The second flange plate 5-19 is fixed, the first flange plate 5-4 and the second flange plate 5-19 are respectively fixedly connected to the first flange shaft 5-5 and the second flange shaft 5-18, the first flange shaft 5-5 and the second flange shaft 5-18 have square flanges on the upper part and rotating shafts on the lower part, and vent holes are provided inside, the lower part of the first flange shaft 5-5 and the second flange shaft 5-18 is respectively supported by the first seat bearing 5-6 and the second seat bearing 5-17, the lower ends of the first flange shaft 5-5 and the second flange shaft 5-18 are respectively connected to the first disc member 5-7 and the second disc member 5 -15 is fixed at the center, the first disc member 5-7 is movably connected to the first air claw seat 5-8 through three first guide shafts 5-13, and the second disc member 5-15 is movably connected to the second screwing air claw seat 5-12 through three second guide shafts 5-14, the first screwing air claw 504 and the second screwing air claw 505 are respectively fixed to the first screwing air claw seat 5-8 and the second screwing air claw seat 5-12, and the first screwing jaw group 5-9 and the second screwing jaw group 5-10 are respectively installed on the first screwing air claw 504 and the second screwing air claw 505.

[0087] The first disc 5-7 is movably connected to the first air claw seat 5-8 through three first guide shafts 5-13, and the second disc 5-15 is movably connected to the second screwing air claw seat 5-12 through three second guide shafts 5-14. The first guide shaft 5-13 and the second guide shaft 5-14 are both provided with compression springs on their outer circumferences, which can be released and contracted by axial force, so that the screwing air claw assembly has a certain amount of movement in the vertical direction. The springs on the first guide shaft 5-13 and the second guide shaft 5-14 are in a compressed state when the anti-tightening cap is not tightened, and are slowly released to a natural state with the height difference generated when the cap is tightened, that is, after the cap is tightened, the spring returns to a natural state.

[0088] The material pressing mechanism 6 includes a horizontally arranged clamping fixed plate 6-7, on which a material pressing translation driving mechanism 602 is horizontally fixed, and the forward extension direction of the material pressing translation driving mechanism 602 is parallel to the cover removing translation driving mechanism 301 and extends inwardly, and a fifth moving plate 6-4 is vertically fixed on the front push plate of the material pressing translation driving mechanism 602, and a fourth guide rail assembly 6-6 and a fifth guide rail assembly 6-9 are vertically and symmetrically installed on both sides of the fifth moving plate 6-4, and a sixth moving plate 6-5 and a seventh moving plate 6-12 are respectively installed on the sliders of the fourth guide rail assembly 6-6 and the fifth guide rail assembly 6-9, and a first clamping fork 6-8 and a second clamping fork 6-10 are respectively placed vertically on the sixth moving plate 6-5 and the seventh moving plate 6-12. The first hinge pin 6-14 and the second hinge pin 6-11 are respectively fixedly connected to the movable plate 6-5 and the seventh movable plate 6-12, and the above two hinge pins are connected with the T-type push plate 6-13 through holes, and the T-type push plate 6-13 is connected with the piston rod of the material pressing lifting drive mechanism 601, and the material pressing lifting drive mechanism 601 is fixed on the material pressing lifting drive mechanism seat 6-3, and the material pressing lifting drive mechanism seat 6-3 is horizontally overlapped on the fifth movable plate 6-4, and the material pressing lifting drive mechanism seat 6-3 is provided with a linear bearing 6-2, and the linear bearing cooperates with the second guide shaft 6-1 to play a guiding role, and the lower parts of the first hinge pin 6-14 and the second hinge pin 6-11 are respectively fixed to the sixth movable plate 6-5 and the seventh movable plate 6-12. The first hinge pin 6-14 and the second hinge pin 6-11 of the material pressing mechanism 6 are provided with springs on the periphery, and the springs play a buffering role to prevent the cover body from being crushed.

[0089] Specifically, the double-station cover body screwing device also includes a controller, which drives each component to work in sequence according to the following steps to complete the automatic cover installation operation. The controller controls the execution steps as follows:

[0090] Step S1: After the sensor senses that the cover body enters the material dividing groove, the material dividing translation driving mechanism 101 is controlled to push the material dividing block 1-1 to a preset position.

[0091] The preset position refers to the position where the material dividing groove moves to the position corresponding to the cap fixing head, that is, the cap removing position, so that the cap fixing head can complete the cap removing operation. At this time, the cap mounting body should be located on the fixture of the material moving mechanism 2 at the same time.

[0092] Step S2: Control the cap removal lifting mechanism 302 to drive the cap fixing head to descend until the suction port of the cap fixing head abuts against the cap body; then connect the air joint to negative pressure so that the cap fixing head can absorb the cap body, and then control the cap removal lifting mechanism 302 to drive the cap fixing head to rise to a predetermined height; control the cap removal translation driving mechanism 301 to drive the cap fixing head to move to the cap dropping position, that is, translate to the top of the cap fixing body.

[0093] That is, the capping lifting mechanism 302 drives the capping head to descend to take the material, and then drives the capping head to rise after the material is taken. The rising of the capping head first makes the cap body separate from the material distribution groove, and secondly makes the height of the cap body not lower than the height of the upper end of the cap body installed on the material transfer mechanism fixture, so as to prepare for the later capping. After the capping translation driving mechanism 301 drives the capping head to move to the capping position, it drives the cap body to move to the capping position, that is, translates to the top of the capping body. At this time, the cap body is located above the capping body, that is, the central axis of the cap body and the central axis of the corresponding part of the capping body are located on the same vertical straight line.

[0094] Step S3: Control the straightening translation driving mechanism 403 to drive the straightening air claws to move to the cover-dropping position, and then control the straightening air claws to start, so that the clamping jaws clamp and straighten the cover body.

[0095] Specifically, the straightening translation drive mechanism 403 drives the third movable plate 4-2 to move relative to the straightening fixed plate 4-1 along the first horizontal direction to move from back to front, that is, drives the first straightening air claw 402 and the second straightening air claw 401 installed on the third movable plate 4-2 to move, so that the corresponding first clamping claw group and the second clamping claw group move to the cover drop position, and then the two clamping claw groups clamp the cover body to achieve the straightening effect. It should be noted that step S2 and step S3 can be performed simultaneously or one after the other, and the above steps only need to be completed before step S4.

[0096] Step S4: Control the cap removing lifting mechanism 302 to drive the cap fixing head to move downward a preset distance so that the cover body on the cap fixing head can be vertically placed on the external threaded cylinder of the cap fixing body and pre-tightened, then stop connecting the negative pressure to the air joint to loosen the cap fixing head, then control the cap removing lifting mechanism 302 to drive the cap fixing head to move upward and control the cap removing translation driving mechanism 301 to drive the cap fixing head to move above the cap removing position, and control the straightening translation driving mechanism 403 to drive the loosened straightening air claw to move back.

[0097] Step S5: Control the slide cylinder 201 to drive the first movable plate 2-1 to move from the cover-dropping position to the cover-screwing position.

[0098] Through the action of the slide cylinder 201, the first movable plate 2-1 is driven to move along the second horizontal direction, so that the cover-mounting body and the cover body thereon located at the cover-dropping position are moved to the cover-screwing position.

[0099] Step S6: Control the material pressing translation driving mechanism 602 to drive the pressing fork to move to the cap screwing position, and then the material pressing lifting driving mechanism 601 drives the pressing fork to move downward to abut against the shoulder of the cap mounting body.

[0100] The cover body and the cover body thereon follow the first movable plate to move to the cover screwing position, and the pressing fork moves to press on the shoulder of the cover body to cooperate with the bearing platform of the cover body to clamp and fix the cover body.

[0101] Step S7: Control the screwing lifting cylinder 501 to drive the screwing claw to move downward, so as to move to the vicinity of the cover body and clamp the cover body; then control the servo motor to drive the screwing claw to rotate, so as to drive the cover body to rotate relative to the cover body until the screwing operation is completed.

[0102] Step S8: After controlling the screwing air claw to loosen the cover body, the screwing lifting cylinder 501, the material pressing lifting drive mechanism 601 and the material pressing translation drive mechanism 602 are controlled to return to the initial state.

[0103] Through the above steps, the capping operation is automatically completed, and at the same time, the slide cylinder 201 is controlled to return to the initial position, and then the next capping operation of assembling the cover body can be carried out.

[0104] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0105] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cover screwing device, characterized in that: include: A cap removing mechanism (3) comprising a cap fixing head, a cap removing lifting mechanism (302) for driving the cap fixing head to move upward and downward, and a cap removing translation driving mechanism (301) for driving the cap fixing head to move along a first horizontal direction from a cap removing position to a cap dropping position; A material moving mechanism (2) is used to move the cover mounting body at the cover dropping position to the cover screwing position along a second horizontal direction; A material pressing mechanism (6) is used to press down and fix the cap-mounting body that has entered the cap-screwing position; A cap screwing mechanism (5) for screwing and fixing the cap body on the cap loading body located at the cap screwing position; further comprising a cap separating mechanism (1) for pushing the cap bodies one by one to the cap removing position and a cap feeding mechanism (100) for arranging the plurality of cap bodies one by one and feeding them to the cap separating mechanism (1); The cover separation mechanism comprises: A material guiding block (1-3) having a material guiding notch corresponding to the material discharge of the cover separation mechanism; A material dividing block (1-1), wherein the material dividing groove corresponds to the material guiding notch; A material dividing translation driving mechanism (101) is used to drive the material dividing block to move along the second horizontal direction, so as to drive the material dividing groove to disengage from the material guiding notch and close the material guiding notch, and to drive the material dividing groove to enter the cover removing position; A limit sensor, used for limiting the movement of the material dividing block (1-1); The material pressing mechanism (6) comprises: Two pressing forks are used to respectively press and fix the two cover bodies arranged in parallel; A T-shaped plate (6-13) is arranged between the two pressing forks, and the two ends of the crossbar are respectively fixedly connected to the two pressing forks via elastic devices that can be elastically deformed in the vertical direction; A material pressing lifting drive mechanism (601), wherein the middle portion of the horizontal rod portion of the T-shaped plate (6-13) and the driving end of the material pressing lifting drive mechanism are relatively fixed in the vertical direction, and the middle vertical rod portion of the T-shaped plate and the mounting seat of the material pressing lifting drive mechanism are guided and limited by a vertically extending guide rod; A material pressing translation driving mechanism (602), used for driving the mounting seat of the material pressing lifting driving mechanism to move along the first horizontal direction to enter and exit the cap screwing position; The cover separation mechanism (1) comprises a vertical cover separation frame (102), a horizontal material separation mounting plate (1-4) being arranged on the cover separation frame (102), and a first guide rail assembly being installed below the material separation block (1-1) so as to be slidably connected to the material separation mounting plate (1-4).

2. The cover screwing device according to claim 1, characterized in that: It also comprises a straightening mechanism (4), wherein the straightening mechanism (4) is used to straighten the cover mounting body located at the cover-dropping position.

3. The cover screwing device according to claim 2, characterized in that: The cap fixing head comprises a nut mounting seat (3-6) mounted on the cap removing lifting mechanism (302), a screw nut mounted on the nut mounting seat (3-6), and a vertical screw rod matched with the screw nut, wherein the lower end of the vertical screw rod is fixedly connected to a suction nozzle, and the upper end is connected to a joint for connecting to a negative pressure source.

4. The cover screwing device according to claim 3, characterized in that: The straightening mechanism (4) comprises: A straightening air claw is used to clamp and straighten the cover-mounting body located at the cover-dropping position; The straightening translation driving mechanism (403) is used to drive the straightening air claw to move along the first horizontal direction to enter and exit the cover-dropping position.

5. The cover screwing device according to claim 4, characterized in that: The cap screwing mechanism (5) comprises: Twist the air claw; The disc member is slidably connected to the seat body of the screwing air claw through a plurality of positioning shafts arranged in parallel, and an elastic member is arranged between them to prevent relative approach movement in the up and down directions; A servo motor, used for driving the disc to rotate; The screw lifting cylinder (501) is used to drive the servo motor to move up and down.

6. The cover screwing device according to claim 2, characterized in that: It also includes a controller, which controls in sequence according to the following steps: After the cap separating mechanism (1) delivers the cap body to the cap removing position, the cap fixing head of the cap removing mechanism (3) falls to remove the cap, rises a predetermined distance and then moves horizontally to the cap dropping position, and after the straightening mechanism (4) straightens the cap loading body located at the cap dropping position, the cap fixing head descends to drive the cap body to fall onto the cap loading body at the cap loading position and drives the cap fixing head to continue falling to pre-tighten the cap; Controlling the cap fixing head to reset, and controlling the material moving mechanism (2) to drive the cap mounting body to move to the cap screwing position; The material pressing mechanism (6) and the cap screwing mechanism (5) are controlled to work, and after the cap screwing is completed, the material pressing mechanism (6), the material moving mechanism (2) and the cap screwing mechanism (5) are controlled to reset.

7. The cover screwing device according to any one of claims 2 to 6, characterized in that: It comprises a plurality of cover removing positions arranged in parallel along the second horizontal direction, and each corresponding component is provided with a corresponding number of working parts so as to be able to perform corresponding operations on each of the parallel cover bodies and the cover installing bodies respectively at the same time.

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