Automatic centering equipment

Abstract

The invention discloses automatic centering equipment, and relates to the technical field of ink jet equipment, and the automatic centering equipment is characterized in that the automatic centering equipment comprises a box body and a centering platform, the centering platform horizontally rotates on the box body through a transmission assembly, and clamping mechanisms used for clamping tires are arranged on the two sides of the centering platform. The motor drives the gear transmission and the electric push rod controls the clamping mechanism, automatic centering and clamping of the tire are achieved, manual adjustment is not needed, the operation time is greatly shortened, the production efficiency is improved, the clamping arms of the clamping mechanism achieve synchronous reverse movement through meshing of the third gear, and according to the specification parameters of the tire, automatic centering and clamping of the tire are achieved. Accurate positioning and clamping are carried out by adjusting the stroke of the electric push rod, when the tire model needs to be replaced, the clamp does not need to be frequently replaced, the problem of cable winding is solved through the design of the conductive slip ring, unstable signal transmission and equipment shutdown maintenance caused by cable damage are avoided, the reliability of equipment is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet devices, and more specifically, to an automatic centering device. Background Art

[0002] In the process of tire production and subsequent processing, inkjet devices, as key marking tools, are widely used in marking information on the tire surface, such as production date, specification model, brand logo, etc. The accuracy and clarity of inkjet printing directly affect the traceability, quality control, and brand image of products. However, the positioning accuracy of the tire during the inkjet process is one of the core factors determining the inkjet effect. If the tire fails to be accurately centered during inkjet printing, it is extremely easy to cause problems such as inkjet position deviation, character overlap or blurring, and even product rework due to unqualified markings, resulting in waste of resources and increased costs.

[0003] Currently, the centering methods of traditional tire inkjet devices mostly rely on manual adjustment or simple mechanical positioning devices. Manual operation requires judging the tire position through experience and manually correcting it, with low efficiency and poor consistency, making it difficult to meet the production requirements of large quantities and high beats. And the existing mechanical centering devices usually use chucks or limit blocks with fixed sizes. Although they can achieve a certain degree of positioning, they have the following defects: First, the adaptability of the device to tires of different specifications is poor. When changing the tire model, it is necessary to frequently adjust or replace the fixture, affecting production continuity. Second, since the centering device usually needs to be connected to electrical components such as sensors and drive motors, the cable will rotate with it during rotation. The cable is prone to problems such as winding, fatigue fracture, and unstable signal transmission due to repeated torsion with the rotating component. At the same time, cable winding will limit the rotation angle and movement freedom of the device, affecting the positioning accuracy adjustment range.

[0004] Therefore, a new solution is needed to solve this problem. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide an automatic centering device.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions: An automatic centering device includes a box body and a centering platform. The centering platform is horizontally rotated on the box body through a transmission component, and clamping mechanisms for clamping tires are provided on both sides of the centering platform; The centering platform includes a plurality of conveying blocks, and adjacent two of the conveying blocks are detachably connected. A plurality of steel balls are rollingly connected to the conveying blocks, and the steel balls are spherical; The transmission assembly includes a motor, a first gear, a second gear, a centering plate, a rotating shaft, a conductive slip ring, and a connecting rod. The first gear meshes with the second gear. The first gear is rotated by the motor. The second gear is fixed to the centering platform. The centering plate is fixed to the centering platform. The rotating shaft passes through the centering plate, and one end of the rotating shaft is fixed to the centering platform. The outer wall of the conductive slip ring is fixed to the connecting rod, and the inner wall of the conductive slip ring is fixed to the rotating shaft; The clamping mechanism includes two clamping arms and two third gears. One ends of the two clamping arms are respectively fixed to the two third gears, and the two third gears mesh with each other. An electric push rod and a rotating assembly are provided on the centering platform. The rotating assembly includes a rotating shaft and a stop block. The rotating shaft is fixed and vertically passes through one of the third gears. The stop block is arranged on the side of the rotating shaft close to the electric push rod. The electric push rod drives the rotating shaft to drive the third gear to rotate and drives the two meshing third gears to move synchronously in opposite directions by pushing the baffle.

[0007] The present invention is further configured as: there are two conductive slip rings. There are two contact pieces on the connecting rod. The two contact pieces are horizontally arranged and located between the two conductive slip rings. The contact pieces are fixed to the conductive slip rings.

[0008] The present invention is further configured as: the conductive slip ring includes a rotor and a stator. The rotor is fixed to the rotating shaft by bolts, and the stator is fixed to the contact piece.

[0009] The present invention is further configured as: a guiding groove is provided on the side wall of the centering platform. A limiting block is arranged in the guiding groove. A protective sleeve is provided on the limiting block. A through hole for the rotating shaft to pass through is opened on the protective sleeve. The limiting block and the protective sleeve are fixed to the centering platform by bolts.

[0010] The present invention is further configured as: mounting holes for bolts to pass through are opened on the side wall of the centering platform. The height of the limiting block is less than the height of the guiding groove.

[0011] The present invention is further configured as: the rotating shaft includes a fixed part and a telescopic part. The stop block is fixed to the fixed part. The third gear is fixed to the telescopic part. The telescopic part is movably arranged along the length direction of the fixed part.

[0012] The present invention is further configured as: the horizontal height of the clamping arm is higher than the top surface of the centering platform. The rotation angle range of the clamping arm is designed to be adjustable.

[0013] The present invention is further configured as: a guiding wheel is provided on the movable end of the clamping arm. The guiding wheel is made of an elastic material.

[0014] The present invention is further configured such that: four mounting seats are provided at the bottom of the box body, and universal wheels are provided on all four of the mounting seats.

[0015] In summary, the present invention has the following beneficial effects: 1. By driving the gear transmission with a motor and controlling the clamping mechanism with an electric push rod, automatic centering and clamping of the tire are achieved, eliminating the need for manual adjustment, greatly reducing the operation time, and improving the production efficiency.

[0016] 2. The clamping arms of the clamping mechanism achieve synchronous reverse movement through the meshing of gear three. According to the tire specification parameters, precise positioning and clamping can be achieved by adjusting the stroke of the electric push rod. When it is necessary to change the tire model, there is no need to frequently replace the fixture, saving the changeover time and improving the production continuity.

[0017] 3. The design of the conductive slip ring solves the problem of cable winding, allowing the centering platform to rotate continuously without being restricted by the cable, avoiding unstable signal transmission and equipment shutdown and maintenance caused by cable damage, improving the reliability and service life of the equipment, and further improving the operation efficiency and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the present invention; Figure 2 is a schematic structural view of the transmission component in the present invention; Figure 3 is a schematic structural view of the clamping mechanism and the centering platform in the present invention; Figure 4 is a side view of the present invention; Figure 5 is a top view of the present invention; Figure 6 is a front view of the present invention; Figure 7 is a cross-sectional view of the output shaft in the present invention; Figure 8 is a schematic structural view of the conveying block in the present invention.

[0019] In the figure: 1, box body; 2, centering platform; 3, transmission component; 4, clamping mechanism; 11, mounting seat; 12, universal wheel; 21, guiding groove; 22, limiting block; 23, protective sleeve; 24, mounting hole; 25, conveying block; 26, steel ball; 31, motor; 32, gear one; 33, gear two; 34, centering plate; 35, rotating shaft; 36, conductive slip ring; 37, connecting rod; 361, rotor; 362, stator; 41, clamping arm; 42, gear three; 43, electric push rod; 44, rotating component; 45, guiding wheel; 441, rotating shaft; 442, stop block; 4411, fixing part; 4412, telescopic part. Detailed implementation mode

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0021] To better describe and illustrate the embodiments of the present application, one or more accompanying drawings may be referred to, but the additional details or examples used to describe the accompanying drawings should not be considered as limiting the scope of any of the invention creations, the currently described embodiments, or the preferred modes of the present application.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention, rather than indicating that the device referred to must have a specific orientation or operate in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0025] An automatic centering device, as Figure 1 shown, includes a box body 1, a centering platform 2, a transmission component 3, and a clamping mechanism 4. The centering platform 2 is installed on the box body 1 through the transmission component 3 and can rotate horizontally. It is used to carry and position the tire. Clamping mechanisms 4 are provided on both sides of the centering platform 2 to clamp the tire and ensure its stability during the inkjet coding process. Four mounting seats 11 are provided at the bottom of the box body 1, and universal wheels 12 are provided on each mounting seat 11. The design of the universal wheels 12 facilitates the movement and position adjustment of the device, improving the flexibility and applicability of the device. The mounting seat 11 is fixedly connected to the box body 1 by welding to ensure the stability of the structure.

[0026] The transmission component 3 is the core component for realizing the rotation of the centering platform 2, and its structure is as Figure 2As shown in the figure, it includes a motor 31, a first gear 32, a second gear 33, a centering plate 34, a rotating shaft 35, a conductive slip ring 36 and a connecting rod 37. The motor 31 is installed in the box body 1 and fixedly connected by bolts. The output shaft of the motor 31 is fixedly connected to the first gear 32 to provide power. The first gear 32 meshes with the second gear 33. The first gear 32 rotates driven by the motor 31, thereby driving the second gear 33 to rotate. The second gear 33 is fixedly connected to the centering platform 2 by bolts, so that the centering platform 2 can horizontally rotate with the rotation of the second gear 33. This gear transmission method can achieve high-precision transmission, ensuring the smooth rotation and accurate positioning of the centering platform 2. The centering plate 34 is fixedly bolted to the bottom of the centering platform 2 to support and fix the rotating shaft 35. The rotating shaft 35 passes through the centering plate 34. One end of it is fixedly connected to the centering platform 2 by bolts, and the other end is fixedly connected to the inner wall of the conductive slip ring 36. An interference fit method of shaft-hole fit is adopted between the rotating shaft 35 and the centering plate 34 to ensure the stability of the rotating shaft 35 during rotation without looseness. This connection method can effectively transmit power, reduce mechanical vibration at the same time, and improve the operation stability of the equipment. Further, the conductive slip ring 36 includes a rotor 361 and a stator 362. The rotor 361 is fixedly connected to the rotating shaft 35, and the stator 362 is connected to the contact piece. By setting the conductive slip ring 36 and replacing the wire with it, the centering platform 2 can rotate continuously without being restricted by the wire. Through the motor 31 driving the gear transmission, the high-precision rotation of the centering platform 2 is realized, ensuring the accuracy of tire positioning. The introduction of the conductive slip ring 36 solves the problem of cable winding, improves the operation stability and reliability of the equipment, avoids shutdown maintenance caused by cable failures at the same time, and reduces the maintenance cost.

[0027] The clamping mechanism 4 is used to clamp the tire to ensure its stability during the inkjet coding process. The specific structure of the clamping mechanism 4 is as Figure 3As shown, it includes two clamping arms 41, two third gears 42, an electric push rod 43 and a rotating assembly 44. The clamping mechanism 4 includes two clamping arms 41. One ends of the clamping arms 41 are respectively fixed on the two third gears 42 by bolts. The two third gears 42 are meshed with each other, and the synchronous reverse movement of the clamping arms 41 is realized through the meshing transmission of the gears. The horizontal height of the clamping arms 41 is higher than the top surface of the centering platform 2 and its rotation angle range is of adjustable design, which can adapt to tires of different specifications. A guide wheel 45 is provided on the movable end of the clamping arm 41 and the guide wheel 45 is made of an elastic material, which can effectively buffer the clamping force, reduce the damage to the tire surface, and at the same time ensure the stability and accuracy of clamping. Further, an electric push rod 43 and a rotating assembly 44 are provided on the centering platform 2. The rotating assembly 44 includes a rotating shaft 441 and a stop block 442. The rotating shaft 441 is fixed by bolts and vertically passes through a third gear 42. The stop block 442 is arranged on one side of the rotating shaft 441 close to the electric push rod 43. The electric push rod 43 makes the rotating shaft 441 drive the third gear 42 to rotate by pushing the stop block 442, and then drives the two meshed third gears 42 to move synchronously in the reverse direction, realizing the clamping and release of the tire by the clamping arms 41. The synchronous reverse movement of the clamping arms 41 is realized through the electric push rod 43 and gear transmission, which can quickly adapt to tires of different specifications without frequent replacement of fixtures, greatly improving the versatility and production efficiency of the equipment. Further, the rotating shaft 441 includes a fixed part 4411 and a telescopic part 4412. The stop block 442 is fixed on the fixed part 4411, and the third gear 42 is fixed to the telescopic part 4412. The telescopic part 4412 is movably arranged along the length direction of the fixed part 4411. By providing the telescopic part 4412 and the fixed part 4411, when the equipment adjusts tires of different sizes, it can be adjusted according to the thickness of the tire. The height of the clamping arm 41 is changed by the movement of the telescopic part 4412, so that it can accurately clamp the position in the middle of the tire, and is more stable and reliable during the process of moving the tire, ensuring the stability during the process of moving the tire. At the same time, the guide wheel 45 on the clamping arm 41 is made of an elastic material, which can effectively buffer the clamping force, reduce the damage to the tire surface, and ensure the stability and accuracy of clamping.

[0028] Furthermore, there are several auxiliary structures on the centering platform 2 for improving the stability and reliability of the equipment. Specifically, the auxiliary structures include guide grooves 21, limit blocks 22 and steel balls 26. The centering platform 2 includes several conveying blocks 25, and two adjacent conveying blocks 25 are detachably connected. The steel balls 26 are arranged in an array and roll on the conveying blocks 25. The steel balls 26 are spherical. Compared with the traditional conveying platform, the rolling steel balls 26 change the sliding friction when the tire moves into rolling friction, which facilitates the centering positioning of the tire and makes it convenient to adjust the tire. There are guide grooves 21 on the side wall of the centering platform 2, and limit blocks 22 are arranged in the guide grooves 21. There is a protective sleeve 23 on the limit block 22, and a through hole for the rotation shaft 441 to pass through is opened on the protective sleeve 23. The limit block 22 and the protective sleeve 23 are fixedly connected to the centering platform 2 by bolts. The height of the limit block 22 is less than the height of the guide groove 21, which is used to limit the movement range of the clamping mechanism 4, prevent excessive clamping or collision, and protect the equipment and the tire from damage. The design of the guide groove 21 and the limit block 22 can effectively limit the movement range of the clamping mechanism 4, prevent equipment damage or tire deformation caused by excessive clamping, and improve the safety and reliability of the equipment. The setting of the steel balls 26 reduces the friction between the platform and the tire, improves the rotational flexibility and stability, and at the same time reduces wear and extends the service life of the equipment.

[0029] Working principle: When the tire reaches the positioning position, the electric push rod 43 acts to push the stop block 442, so that the rotation shaft 441 drives the gear three 42 to rotate. Since the two gears three 42 are meshed with each other, the clamping arms 41 move synchronously and in opposite directions, so as to clamp and fix the tire on the centering platform 2. After the tire is clamped, the inkjet printing device performs inkjet printing on the tire. The conductive slip ring 36 ensures the signal transmission stability and movement freedom during the rotation of the equipment, and avoids faults caused by cable winding. The motor 31 is started, and through the meshing transmission of the gear one 32 and the gear two 33, it drives the centering platform 2 to rotate horizontally, so that the inkjet printing achieves the expected effect. After the inkjet printing is completed, the electric push rod 43 acts in the reverse direction, so that the clamping arms 41 release the tire, and a centering and inkjet printing operation is completed.

[0030] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An automated centering device, characterized in that: It comprises a box body (1) and a centering platform (2), wherein the centering platform (2) is horizontally rotated on the box body (1) through a transmission assembly (3), and clamping mechanisms (4) for clamping tires are provided on both sides of the centering platform (2); The centering platform (2) comprises a plurality of conveying blocks (25), two adjacent conveying blocks (25) are detachably connected, and a plurality of steel balls (26) are rollingly connected to the conveying blocks (25), and the steel balls (26) are spherical; The transmission assembly (3) comprises a motor (31), a gear 1 (32), a gear 2 (33), a centering plate (34), a rotating shaft (35), a conductive slip ring (36) and a connecting rod (37); the gear 1 (32) and the gear 2 (33) are meshed with each other; the gear 1 (32) is rotated by the motor (31); the gear 2 (33) is fixed to the centering platform (2); the centering plate (34) is fixed to the centering platform (2); the rotating shaft (35) passes through the centering plate (34); one end of the rotating shaft (35) is fixed to the centering platform (2); the outer wall of the conductive slip ring (36) is fixed to the connecting rod (37); and the inner wall of the conductive slip ring (36) is fixed to the rotating shaft (35); The clamping mechanism (4) comprises a clamping arm (41) and a gear three (42), one end of the clamping arm (41) is fixed to the gear three (42) and two adjacent gear threes (42) are meshed with each other, an electric push rod (43) and a rotating assembly (44) are provided on the centering platform (2), the rotating assembly (44) comprises a rotating shaft (441) and a stopper (442), the rotating shaft (441) is fixed and passes through the gear three (42), the stopper (442) is arranged on a side of the rotating shaft (441) close to the electric push rod (43), the electric push rod (43) drives the rotating shaft (441) to rotate and drives the two meshing gear threes (42) to move synchronously in opposite directions by pushing the baffle.

2. An automated centering device according to claim 1, characterized in that: Two conductive slip rings (36) are provided, and two contact pieces are provided on the connecting rod (37). The two contact pieces are arranged horizontally and located between the two conductive slip rings (36), and the contact pieces are fixed to the conductive slip rings (36).

3. An automated centering device according to claim 2, characterized in that: The conductive slip ring (36) comprises a rotor (361) and a stator (362); the rotor (361) is fixed to the rotating shaft (35) by means of bolts, and the stator (362) is fixed to a contact sheet.

4. The automatic centering device according to claim 1, characterized in that: A guide groove (21) is provided on the side wall of the centering platform (2), a limit block (22) is provided in the guide groove (21), a protective sleeve (23) is provided on the limit block (22), a through hole for accommodating the rotation shaft (441) passing through is opened on the protective sleeve (23), and the limit block (22) and the protective sleeve (23) are fixed to the centering platform (2) by bolts.

5. The automatic centering device according to claim 4, characterized in that: A mounting hole (24) for accommodating the passage of a bolt is provided on the side wall of the centering platform (2), and the height of the limit block (22) is smaller than the height of the guide groove.

6. The automatic centering device according to claim 5, characterized in that: The rotating shaft (441) comprises a fixed portion (4411) and a telescopic portion (4412), the stopper (442) is fixed on the fixed portion (4411), the gear three (42) is fixed to the telescopic portion (4412), and the telescopic portion (4412) can be movably arranged along the length direction of the fixed portion (4411).

7. The automatic centering device according to claim 6, characterized in that: The horizontal height of the clamping arm (41) is higher than the top surface of the centering platform (2), and the rotation angle range of the clamping arm (41) is of adjustable design.

8. The automatic centering device according to claim 1, characterized in that: A guide wheel (45) is provided on the movable end of the clamping arm (41), and the guide wheel (45) is made of elastic material.

9. The automatic centering device according to claim 1, characterized in that: Four mounting seats (11) are provided at the bottom of the box body (1), and universal wheels (12) are provided on the four mounting seats (11).

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