Annular inner core surface free code spraying equipment and code spraying method

Abstract

The invention discloses a free code spraying device and method for the surface of an annular inner core, and the device comprises a multi-axis driving mechanism; the spray head is arranged outside the multi-axis driving mechanism, and the spray head is driven by the multi-axis driving mechanism to spray codes on a plurality of positions on the surface of the inner core; and the rotary clamping table is arranged on the working table top, and the rotary clamping table can at least clamp two types of annular inner cores. The code spraying method comprises the steps that feeding is conducted, a product is placed on the working face of the rotary clamping table, the face to be subjected to jet printing faces upwards, the air cylinder rod retracts, and the product is fixed to the working face of the rotary clamping table; initial jet printing is conducted, a multi-axis driving mechanism moves at the same time, a spray head moves to the upper surface of the to-be-printed face of the product, a rotary clamping table drives the product to rotate, and the spray head conducts jet printing on the product to form a first code pattern; secondary jet printing: after the plain code jet printing is finished, the multi-axis driving mechanism drives the spray head to do linear translational motion, and meanwhile, a second code type is jet-printed on the surface of the product; and blanking. According to the invention, compatible production and jet printing of various annular inner cores can be satisfied.

Description

Technical Field

[0001] The invention relates to the technical field of coding, and in particular to a free coding device and a coding method on the surface of an annular inner core. Background Art

[0002] With the development of science and technology and the increasing demand of consumers for product information transparency, coding and tracking has become an important means of quality management. By marking products with unique QR codes or barcodes and tracking the flow of information in the production, circulation and consumption links, product safety can be effectively guaranteed, helping enterprises to conduct quality management and reverse traceability. There are many types of annular cores, and it is necessary to print clear codes, QR codes, and barcodes on the surface of the inner core ring to identify the type and specification of the product.

[0003] However, since the inner core has different models, such as φ51+0.1mm or φ76.5+0.2 / -0.1mm, for the printing of annular products, after printing a certain model of inner core, if you want to change the model, you need to replace the corresponding workbench, which requires more cost investment and requires frequent replacement of equipment, affecting the accuracy of subsequent coding. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a free coding device and coding method on the surface of an annular inner core.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: a ring-shaped inner core surface free coding device, comprising:

[0006] Multi-axis drive mechanism;

[0007] A nozzle is arranged outside the multi-axis driving mechanism, and the nozzle is driven by the multi-axis driving structure to spray codes on multiple positions on the surface of the inner core;

[0008] The rotary clamping table is arranged on the work surface, and the rotary clamping table can clamp at least two types of annular inner cores and drive the annular inner cores to rotate so as to spray codes on different positions on the surface of the annular inner cores.

[0009] As a further description of the above technical solution, at least a first sensor and a second sensor are arranged on both sides of the rotating clamping table, wherein the first sensor and the second sensor respectively locate the first working surface and the second working surface on the rotating clamping table.

[0010] As a further description of the above technical solution, the rotary clamping table includes a first working surface and a second working surface;

[0011] Wherein, the first working surface and the second working surface each include two fixed claws and one movable claw, the movable claw is connected to a slider below, and the slider is driven by a cylinder.

[0012] As a further description of the above technical solution, the multi-axis driving structure includes a Y-axis unit arranged on the upper surface of the worktable, a Z-axis unit is slidably arranged on the surface of the Y-axis unit, an X-axis unit is slidably arranged on the surface of the Z-axis unit, and the nozzle is slidably arranged on the surface of the X-axis unit.

[0013] As a further description of the above technical solution, a pair of the first sensor and the second sensor are provided, and the position of the first sensor corresponds to the first working surface;

[0014] The position of the second sensor corresponds to the second working surface.

[0015] As a further description of the above technical solution, the slider is connected to the rotating clamping platform through a spring buckle.

[0016] A coding method for the free coding device on the surface of an annular inner core according to any one of the above items, comprising:

[0017] Loading: Place the product on the working surface of the rotating clamping table with the surface to be printed facing upwards, retract the cylinder rod, and fix the product to the working surface of the rotating clamping table;

[0018] During the initial printing, the multi-axis driving mechanism moves simultaneously, the nozzle moves to the upper surface of the product to be printed, the rotating clamping table drives the product to rotate, and the nozzle prints the first code pattern on the product;

[0019] Secondary printing: After the clear code printing is completed, the multi-axis drive mechanism drives the nozzle to move linearly and print the second code pattern on the product surface at the same time;

[0020] Cutting materials.

[0021] As a further description of the above technical solution, a servo motor is arranged at the bottom of the rotating clamping table to drive the rotating clamping table and the fixed product to rotate.

[0022] As a further description of the above technical solution, the first code type is a plain code, which is arranged along the annular surface shape of the product, and the second code type is a QR code / barcode.

[0023] As a further description of the above technical solution, when printing is performed, any one of the first working surface or the second working surface of the rotatable clamping clamps the product.

[0024] The present invention has the following beneficial effects:

[0025] 1. The present invention sets a rotating clamping table, and sets multiple clamping claw positions of different heights on the rotating clamping table to be compatible with the printing of the annular inner core. Each clamping claw position can be horizontally fixed with the corresponding annular inner core. When the inner core model needs to be replaced, such as when the annular inner core with a small inner diameter needs to be replaced with an annular inner core with a large inner diameter, it is only necessary to take out the annular inner core with a small inner diameter and install the annular inner core with a large inner diameter at the corresponding position. Since the rotating clamping table is provided with clamping claw positions of different heights, the large inner core can be directly fixed at the preset clamping claw position, without the need for secondary debugging of the clamping table, and the impact on the continuity of the coding process can be minimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional diagram of the free inkjet coding device proposed by the present invention;

[0027] Figure 2 A top view of the free inkjet coding device proposed by the present invention;

[0028] Figure 3 A three-dimensional diagram of the rotary clamping table proposed by the present invention;

[0029] Figure 4 A top view of the rotary clamping table proposed by the present invention;

[0030] Figure 5 The figure is a schematic flow chart of the coding method proposed in the present invention.

[0031] Legend:

[0032] 100, multi-axis driving mechanism; 110, X-axis unit; 12, Y-axis unit; 130, Z-axis unit; 200, nozzle; 300, rotating clamping table; 310, first working surface; 320, second working surface; 330, fixed claw; 340, movable claw; 350, slider; 360, cylinder; 400, first sensor; 500, second sensor; 600, working table. DETAILED DESCRIPTION

[0033] 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.

[0034] The embodiment of the present application provides a ring-shaped inner core surface free coding device and coding method, which solves the problem in the prior art that only one type of inner core can be coded. When a new type needs to be replaced, the corresponding fixed equipment must be replaced, which not only requires time cost, but also when replacing with other types of fixed equipment, it is not just a simple replacement for use, but also requires debugging of the fixed equipment. For example, after placing the ring-shaped inner core, the flatness of the printing surface of the ring-shaped inner core needs to be debugged to ensure the clarity of the printed barcode during printing, which not only requires a certain amount of time, but also requires a certain amount of experience cost. When the inner core model is changed, the efficiency of the coding process will be interrupted.

[0035] The technical solution provided by the present application is to set up a rotating clamping table 300, and to set multiple clamping claw positions of different heights on the rotating clamping table 300. Each clamping claw position can be horizontally fixed with a corresponding annular inner core. When the inner core model needs to be replaced, such as when the annular inner core with a small inner diameter needs to be replaced with an annular inner core with a large inner diameter, it is only necessary to take out the annular inner core with a small inner diameter and install the annular inner core with a large inner diameter at the corresponding position. Since the rotating clamping table 300 is provided with clamping claw positions of different heights, the large inner core can be directly fixed at the preset clamping claw position without the need for secondary debugging of the clamping table, thereby minimizing the impact on the continuity of the coding process.

[0036] Please refer to Figure 1-4 , an embodiment provided by the present invention: it includes a work surface as an area for installing a multi-axis driving mechanism 100 and a rotating clamping table 300, i.e., a positioning fixture;

[0037] The multi-axis driving mechanism 100 includes an X-axis unit 110, a Y-axis unit 12 and a Z-axis unit 130. The nozzle 200 of the device is mounted on the slider 350 of the X-axis unit 110, and the X-axis unit 110 is fixed on the slider 350 of the Z-axis unit 130. The combination of the X-axis unit 110 and the Z-axis unit 130 is fixed on a gantry driven by a Y-axis electric cylinder. Two slide rails are respectively designed on the left and right sides of the bottom of the gantry. Through the coordinated use of the X-axis unit 110, the Y-axis unit 12 and the Z-axis unit 130, the nozzle 200 can be moved to any position in the three-dimensional space, so as to facilitate the subsequent coding of multiple positions of the annular inner core when used;

[0038] For the rotating clamping table 300 with a fixed annular inner core, a servo motor is connected to the rotating shaft below the turntable, and the servo motor can drive the rotation of the entire rotating clamping table 300 to achieve faster and more convenient printing of the clear code in the subsequent printing. The rotating clamping table 300 includes at least two working surfaces, preferably including a first working surface 310 and a second working surface 320. Among them, the first working surface 310 and the second working surface 320 are concentrically arranged, the height of the first working surface 310 is higher than the second working surface 320, and the diameter of the fixed claw 330 and the movable claw 340 in the first working surface 310 is smaller than the diameter of the fixed claw 330 and the movable claw 340 in the second working surface 320, that is, the entire rotating clamping table 300 is in the shape of a tower. The interior of the movable claw 340 of the rotating clamping table 300 is driven by the slider 350, and a spring buckle is arranged inside the slider 350. The slider 350 is connected to the cylinder 360 through the cylinder 360 rod. When in use, after the product is placed on the rotating table, the product can be automatically locked on the turntable under the action of elastic force (after the cylinder 360 is retracted), so that the product can rotate with the turntable, and when the cylinder 360 is extended and extended, the product can be unlocked, so that the product can be removed more conveniently.

[0039] Furthermore, a pair of first sensors 400 and second sensors 500 are provided on both sides of the rotating clamping table 300, wherein the first sensor 400 corresponds to the position of the first working surface 310, and the second sensor 500 corresponds to the position of the second working surface 320, that is, the height of the two relative first sensors 400 is greater than the height of the two relative second sensors 500, and the first sensor 400 and the second sensor 500 are used to detect whether the inner cores on the two working surfaces are ready for the subsequent printing process.

[0040] refer to Figure 5 , the present application provides a coding method for a ring-shaped inner core surface free coding device, specifically:

[0041] Loading:

[0042] Manual loading or automatic loading is preferred. In manual loading, when the operator places the product on the positioning fixture with the surface to be printed facing upward, when the product is placed, the operator withdraws from the sensing range of the safety grating, the cylinder 360 rod retracts and locks the product on the turntable, and then the machine automatically starts printing. In other feasible embodiments, when automatic loading is adopted, the annular inner core can be grabbed by a robot for loading.

[0043] First print:

[0044] During the initial printing, i.e. the first code type, i.e. the clear code printing, when the operator has placed the product and has manually left the "safety grating" inspection area, the XYZ axes move simultaneously to move the nozzle 200 to the top of the product surface to be printed, and then the servo motor rotates and drives the rotating table to drive the product and the positioning fixture to rotate together. At the same time, the nozzle 200 located above the product prints the characters pre-set by the customer on the product, such as "ABCDEFGHIJK" and the like.

[0045] Secondary printing:

[0046] When the operator places the product or prints the clear code, the "X-axis" drives the nozzle 200 to move in a straight line, and the nozzle 200 located above the product prints the second code type preset by the customer, i.e., a QR code / or a bar code, on the surface of the product. In other feasible embodiments, the second code type may be sprayed first and then the first code type.

[0047] Cutting:

[0048] When the equipment has finished printing the above-mentioned product coding content, the machine will automatically stop and wait for the operator to take away the product. In other feasible embodiments, the mechanical claw can also automatically unload the product; if the product is not taken away for a long time, the machine will be in "standby mode".

[0049] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ring-shaped inner core surface free coding device, characterized in that: include: Multi-axis drive mechanism; A nozzle is arranged outside the multi-axis driving mechanism, and the nozzle is driven by the multi-axis driving structure to spray codes on multiple positions on the surface of the inner core; The rotary clamping table is arranged on the work surface, and the rotary clamping table can clamp at least two types of annular inner cores and drive the annular inner cores to rotate so as to spray codes on different positions on the surface of the annular inner cores.

2. The annular inner core surface free coding device according to claim 1 is characterized in that: At least a first sensor and a second sensor are disposed on both sides of the rotary clamping table, wherein the first sensor and the second sensor respectively locate the first working surface and the second working surface on the rotary clamping table.

3. The annular inner core surface free coding device according to claim 1 is characterized in that: The rotary clamping table includes a first working surface and a second working surface; Wherein, the first working surface and the second working surface each include two fixed claws and one movable claw, the movable claw is connected to a slider below, and the slider is driven by a cylinder.

4. The annular inner core surface free coding device according to claim 1 is characterized in that: The multi-axis driving structure includes a Y-axis unit arranged on the upper surface of the worktable, a Z-axis unit is slidably arranged on the surface of the Y-axis unit, an X-axis unit is slidably arranged on the surface of the Z-axis unit, and the nozzle is slidably arranged on the surface of the X-axis unit.

5. The annular inner core surface free coding device according to claim 3 is characterized in that: The first sensor and the second sensor are each provided in a pair, and the position of the first sensor corresponds to the first working surface; The position of the second sensor corresponds to the second working surface.

6. The annular inner core surface free coding device according to claim 3 is characterized in that: The sliding block is connected to the rotating clamping platform through a spring buckle.

7. A coding method for the free coding device on the surface of an annular inner core according to any one of claims 1 to 6, characterized in that: include: Loading: Place the product on the working surface of the rotating clamping table with the surface to be printed facing upwards, retract the cylinder rod, and fix the product to the working surface of the rotating clamping table; During the initial printing, the multi-axis driving mechanism moves simultaneously, the nozzle moves to the upper surface of the product to be printed, the rotating clamping table drives the product to rotate, and the nozzle prints the first code pattern on the product; Secondary printing: After the clear code printing is completed, the multi-axis drive mechanism drives the nozzle to move linearly and print the second code pattern on the product surface at the same time; Cutting materials.

8. The coding method according to claim 7, characterized in that: A servo motor is arranged at the bottom of the rotating clamping table to drive the rotating clamping table and the fixed product to rotate.

9. The coding method according to claim 7, characterized in that: The first code type is a plain code, which is arranged along the annular surface shape of the product, and the second code type is a QR code / bar code.

10. The coding method according to claim 7, characterized in that: When printing is performed, any one of the first working surface or the second working surface of the rotatable clamping clamps the product.

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