An inkjet printer for SMT chip mounting

Abstract

The present invention provides an inkjet printer for SMT chip mounter, which includes a conveyor belt. In the middle of the conveyor belt, there are a main support platform, multiple adjustable conveyor limiting mechanisms, an adjustment driving mechanism, a nozzle adjustment linkage mechanism, multiple inkjet nozzles and a control chassis. In this invention, the SMT chips on the conveyor belt are limited by the multiple adjustable conveyor limiting mechanisms to ensure that they pass under the multiple inkjet nozzles in the same direction; the inkjet width of the multiple inkjet nozzles covers the width of the SMT chips, so that multiple inkjet operations can be achieved in a single pass; the width between the multiple adjustable conveyor limiting mechanisms can be adjusted by the adjustment driving mechanism, and the coverage width of the multiple inkjet nozzles is linked and adjusted by the nozzle adjustment linkage mechanism following the width between the multiple adjustable conveyor limiting mechanisms, so as to adapt to SMT chips of different sizes, greatly improving the applicability of the inkjet printer.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet coding equipment, and particularly relates to an inkjet printer for SMT chip mounting. Background Art

[0002] An inkjet printer is a device that uses software control to perform marking on products in a non-contact manner. The inkjet printer operates on the principle of deflecting charged ink particles by a high-voltage electric field, and sprays patterns, characters, and numbers on the surfaces of various objects. It is a high-tech product integrating mechanical and electrical integration. Inkjet printers are widely used in the food industry, cosmetics industry, pharmaceutical industry, parts processing industries such as automobiles, wire and cable industries, aluminum-plastic pipe industries, tobacco and alcohol industries, and other fields. It can be used for spraying production dates, batch numbers, barcodes, trademark patterns, anti-counterfeiting marks, and Chinese characters.

[0003] The existing small-character inkjet coding equipment has a small inkjet area and cannot cover different SMT chip mounting sizes; while some inkjet coding equipment with stronger applicability controls the movement of the nozzle through a two-axis movement mechanism, so as to perform inkjet coding on multiple positions of the positioned material. However, multiple movements back and forth not only have low efficiency, but also the existing inkjet coding equipment has a very high working speed, and the mechanical movement speed also needs to be very fast to match the inkjet speed. The very fast mechanical movement speed not only consumes a large amount of energy, but also is easily damaged, and the failure rate cannot be guaranteed, which cannot meet the production requirements. Summary of the Invention

[0004] In view of the above problems, the present invention provides an inkjet printer for SMT chip mounting, aiming to solve the technical problem of low inkjet coding efficiency caused by the inkjet area of the inkjet printer being unable to cover the SMT chip mounting size in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: An inkjet printer for SMT chip mounting, including a conveyor belt, a main support platform is provided in the middle of the conveyor belt, adjustable conveying limiting mechanisms are symmetrically provided on the top surface of the main support platform and on both sides of the conveyor belt, a plurality of the adjustable conveying limiting mechanisms are all provided in the middle of an adjustment driving mechanism, the adjustment driving mechanism is provided on the top surface of the main support platform, a nozzle adjustment linkage mechanism is provided above the plurality of adjustable conveying limiting mechanisms, a plurality of inkjet nozzles are provided inside the nozzle adjustment linkage mechanism, and the plurality of inkjet nozzles are all electrically connected to a control chassis, and the control chassis is provided on one side of the main support platform.

[0006] Further, the top surface of the main support platform is provided below the conveying surface of the conveyor belt to ensure the flat conveying of the conveyor belt.

[0007] Furthermore, the adjustable conveying limiting mechanism includes a limiting bar, and a plurality of limiting roller units are arranged on one side of the limiting bar. Both ends of the limiting bar are symmetrically and rotatably connected to one end of a limiting support telescopic retaining arm, and the other ends of the plurality of limiting support telescopic retaining arms are all arranged on the top surface of the main support platform.

[0008] Furthermore, the limiting roller unit includes a roller shaft. The middle part of the roller shaft is arranged on one side of the limiting bar. A gasket nut is arranged on the upper part of the roller shaft. A tapered limiting roller, a spring washer, and a downward pressure spring are sequentially sleeved on the lower part of the roller shaft from bottom to top.

[0009] Furthermore, the limiting support telescopic retaining arm includes a fixed swing arm. One end of the fixed swing arm is rotatably connected to the upper part of a limiting support fixed seat. The bottom surface of the limiting support fixed seat is arranged on the top surface of the main support platform. A sliding limiting block is arranged on the top surface of the fixed swing arm. The sliding limiting block is slidably connected to the inside of a sliding limiting groove. The sliding limiting groove is opened on the top surface of the telescopic support arm. One end of the telescopic support arm is rotatably connected to one end of the limiting bar. Auxiliary retaining bars are arranged on one side of the fixed swing arm and one side of the telescopic support arm.

[0010] Furthermore, the adjustment driving mechanism includes a driving motor. The driving motor is arranged on the other side of the main support platform through a motor bracket. The execution end of the driving motor is drivingly connected to the middle part of a main transmission shaft. The main transmission shaft is arranged on the top surface of the main support platform through a plurality of transmission fixing blocks. Both ends of the main transmission shaft are respectively rotatably connected to one side of a transmission support. Driving bevel gears are coaxially connected to both ends of the main transmission shaft respectively. A plurality of driving bevel gears are respectively meshed and connected to driven bevel gears. One end of a bidirectional lead screw is coaxially connected to each of the plurality of driven bevel gears respectively. The middle parts of the plurality of bidirectional lead screws are respectively symmetrically threadedly connected to driving control blocks. The plurality of driving control blocks are respectively arranged on the top surfaces of the plurality of adjustable conveying limiting mechanisms. One end of each of the plurality of bidirectional lead screws is respectively rotatably connected to the middle part of the transmission support. The other ends of the plurality of bidirectional lead screws are respectively arranged on the top surface of the main support platform through lead screw fixing blocks.

[0011] Further, the nozzle adjusting linkage mechanism includes a linkage fixing bracket. The bottom surfaces of both ends of the linkage fixing bracket are provided on the top surface of the main support platform. One of the nozzle heads is provided at the lower part of the linkage fixing bracket. The middle part of the linkage fixing bracket is rotatably connected to the middle part of a linkage rocker. Multiple nozzle installation units are respectively slidably connected to both sides of the linkage fixing bracket and the middle part of the linkage rocker. The lower parts of the multiple nozzle installation units are respectively provided with the nozzle heads. Linkage control units are symmetrically and slidably connected to both ends of the linkage rocker. The lower ends of the multiple linkage control units are respectively provided on the top surfaces of the multiple adjustable conveying limiting mechanisms. The upper parts of the multiple nozzle installation units and the upper parts of the multiple linkage control units are respectively slidably connected to the middle part of a linkage sliding bracket. The bottom surfaces of both ends of the multiple linkage sliding brackets are provided on the top surface of the main support platform.

[0012] Further, the linkage fixing bracket includes a fixing cross beam. The middle part of the fixing cross beam is rotatably connected to the middle part of the linkage rocker. A fixing nozzle installation block is provided on the bottom surface of the middle part of the fixing cross beam. One side of the fixing nozzle installation block is provided with the nozzle head. The two ends of the fixing cross beam are respectively provided at the upper ends of linkage fixing columns. The bottom surfaces of the multiple linkage fixing columns are all provided on the top surface of the main support platform.

[0013] Further, the nozzle installation unit includes a linkage slider. A linkage groove is formed in the middle of the linkage slider. A rocker slider is rotatably connected inside the linkage groove. The middle part of the rocker slider is slidably connected to the middle part of the linkage rocker. Linkage sliding grooves are respectively formed above, below, and in the middle of the rocker slider and the linkage groove. The multiple linkage sliding grooves are all slidably connected to the middle part of the linkage sliding bracket. A linkage nozzle installation block is provided on the bottom surface of the linkage slider. One side of the linkage nozzle installation block is provided with the nozzle head.

[0014] Further, the linkage control unit includes a linkage control slider. A linkage control groove is formed in the middle of the linkage control slider. A rocker transmission slider is rotatably connected inside the linkage control groove. The middle part of the rocker transmission slider is slidably connected to one end of the linkage rocker. Linkage control sliding grooves are respectively formed above, below, and in the middle of the rocker transmission slider and the linkage control groove. The multiple linkage control sliding grooves are all slidably connected to the middle part of the linkage sliding bracket. A linkage control rod is provided on the bottom surface of the linkage control slider. The lower end of the linkage control rod is provided on the top surface of the adjustable conveying limiting mechanism.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The SMT patches on the conveyor belt are limited by multiple adjustable transmission limit mechanisms to ensure that they pass under multiple spray terminals in the same direction; the coding width of multiple spray terminals covers the width of the SMT patches, so that multiple coding can be achieved in a single pass; the width between multiple adjustable transmission limit mechanisms can be adjusted by adjusting the driving mechanism, and the coverage width of multiple spray terminals can be adjusted in a linkage manner by following the width between multiple adjustable transmission limit mechanisms through the nozzle adjustment linkage mechanism, so as to adapt to SMT patches of different sizes, greatly improving the applicability of the inkjet printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance structure of the present invention Figure I ;

[0018] Figure 2 This is a schematic diagram of the appearance structure of the present invention Figure II ;

[0019] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the adjustable transmission limit mechanism of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure disassembly of the adjustable transmission limit mechanism of the present invention;

[0022] Figure 6 It is a schematic cross-sectional view of the structure of the limiting roller unit of the present invention;

[0023] Figure 7 It is a schematic diagram of the structure of the regulating drive mechanism of the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of the nozzle adjustment linkage mechanism of the present invention;

[0025] Figure 9 It is a schematic diagram of the structure disassembly of the nozzle adjustment linkage mechanism of the present invention;

[0026] Figure 10 It is a schematic diagram of the structure of the linkage fixing bracket of the present invention;

[0027] Figure 11 It is a schematic cross-sectional view of the structure of the nozzle installation unit of the present invention;

[0028] Figure 12 It is a schematic cross-sectional view of the linkage control unit structure of the present invention.

[0029] In the figure: 1, conveyor belt; 2, main support platform; 3, adjustable conveyor limiting mechanism; 31, limiting bar; 32, limiting roller unit; 321, roller shaft; 322, gasket nut; 323, conical limiting roller; 324, spring washer; 325, downward pressure spring; 33, limiting support telescopic stop arm; 331, fixed swing arm; 332, limiting support fixed seat; 333, sliding limiting block; 334, sliding limiting groove; 335, telescopic support arm; 336, secondary bar; 4, adjustment drive mechanism; 41, drive motor; 42, main drive shaft; 43, drive fixing block; 44, drive bevel gear; 45, driven bevel gear; 46, bidirectional lead screw; 47, drive control block; 48, lead screw fixing block; 49, drive support; 5, spray head adjustment linkage mechanism; 51, linkage fixing bracket; 511, fixed cross beam; 512, fixed spray head mounting block; 513, linkage fixing column; 52, linkage rocker; 53, spray head mounting unit; 531, linkage slider; 532, linkage groove; 533, rocker slider; 534, linkage chute; 535, linkage spray head mounting block; 54, linkage control unit; 541, linkage control slider; 542, linkage control groove; 543, rocker drive slider; 544, linkage control chute; 545, linkage control rod; 55, linkage sliding bracket; 6, spray head dock; 7, control chassis. Detailed implementation mode

[0030] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as "fixed on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are only for the purpose of illustration.

[0032] Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention in this article are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more of the related listed items.

[0033] For the embodiment, please refer with emphasis to Figures 1-3, An inkjet printer for SMT chip mounter, comprising a conveyor belt 1. A main support platform 2 is provided in the middle of the conveyor belt 1. The top surface of the main support platform 2 is arranged below the conveying surface of the conveyor belt 1 to ensure the flat conveyance of the conveyor belt 1. Adjustable conveying limit mechanisms 3 are symmetrically arranged on both sides of the top surface of the main support platform 2 and the conveyor belt 1. A plurality of the adjustable conveying limit mechanisms 3 are all arranged in the middle of an adjustment driving mechanism 4. The adjustment driving mechanism 4 is arranged on the top surface of the main support platform 2. Above the plurality of adjustable conveying limit mechanisms 3, there is a nozzle adjustment linkage mechanism 5. A plurality of inkjet heads 6 are arranged inside the nozzle adjustment linkage mechanism 5. The plurality of inkjet heads 6 are all electrically connected to a control chassis 7. The control chassis 7 is arranged on one side of the main support platform 2.

[0034] For the embodiment, please refer with emphasis to Figures 4-6 , The adjustable conveying limit mechanism 3 includes a limit bar 31. A plurality of limit roller units 32 are arranged on one side of the limit bar 31. Both ends of the limit bar 31 are symmetrically and rotatably connected to one end of a limit support telescopic stop arm 33. The other ends of the plurality of limit support telescopic stop arms 33 are all arranged on the top surface of the main support platform 2. The SMT chips on the conveyor belt 1 are limited and aligned by the cooperation of the limit bar 31 and the plurality of limit roller units 32. The limit roller unit 32 includes a roller shaft 321. The middle of the roller shaft 321 is arranged on one side of the limit bar 31. A gasket nut 322 is arranged on the upper part of the roller shaft 321. A conical limit roller 323, a spring washer 324, and a downward pressure spring 325 are sequentially sleeved on the lower part of the roller shaft 321 from bottom to top. Under the action of the downward pressure spring 325, the conical limit roller 323 presses the SMT chips tightly to prevent sliding. The limit support telescopic stop arm 33 includes a fixed swing arm 331. One end of the fixed swing arm 331 is rotatably connected to the upper part of a limit support fixed seat 332. The bottom surface of the limit support fixed seat 332 is arranged on the top surface of the main support platform 2. A sliding limit block 333 is arranged on the top surface of the fixed swing arm 331. The sliding limit block 333 is slidably connected to the inside of a sliding limit groove 334. The sliding limit groove 334 is opened on the top surface of a telescopic support arm 335. One end of the telescopic support arm 335 is rotatably connected to one end of the limit bar 31. Auxiliary stop bars 336 are arranged on one side of the fixed swing arm 331 and one side of the telescopic support arm 335. This design ensures that the limit bar 31 can move freely through the two limit support telescopic stop arms 33 and guides and gathers the SMT chips on the conveyor belt.

[0035] For the embodiment, please refer with emphasis to Figure 7The adjustment drive mechanism 4 includes a drive motor 41, which is arranged on the other side of the main support platform 2 through a motor bracket. The execution end of the drive motor 41 is transmission-connected to the middle part of the main transmission shaft 42. The main transmission shaft 42 is arranged on the top surface of the main support platform 2 through multiple transmission fixing blocks 43. The two ends of the main transmission shaft 42 are respectively rotatably connected to one side of the transmission support 49. The two ends of the main transmission shaft 42 are respectively coaxially connected to the driving bevel gear 44. The multiple driving bevel gears 44 are respectively engaged with the driven bevel gears 45. The multiple driven bevel gears 45 are arranged in opposite directions. The multiple driven bevel gears 45 are respectively coaxially connected to one end of the bidirectional screw rod 46. The multiple bidirectional screw rods 46 are respectively coaxially connected to one end of the bidirectional screw rod 46. The middle part of the screw rod 46 is symmetrically threadedly connected to the drive control block 47, and the multiple drive control blocks 47 are respectively arranged on the top surfaces of the multiple adjustable transmission limit mechanisms 3. One ends of the multiple bidirectional screw rods 46 are respectively rotatably connected to the middle part of the transmission support 49, and the other ends of the multiple bidirectional screw rods 46 are respectively arranged on the top surface of the main support platform 2 through the screw rod fixing blocks 48. This design drives the main transmission shaft 42 to rotate through the driving motor 41, and through the engagement of multiple driving bevel gears 44 with the driven bevel gears 45, respectively drives the multiple bidirectional screw rods 46 to rotate, and then respectively drives the multiple drive control blocks 47 to move, thereby driving the two limit bars 31 to move, so as to adjust the width adapted to the transmission limit.

[0036] For example, please refer to Figures 8-12, the nozzle adjustment linkage mechanism 5 includes a linkage fixed bracket 51. The bottom surfaces of both ends of the linkage fixed bracket 51 are provided on the top surface of the main support platform 2. One of the nozzle heads 6 is provided at the lower part of the linkage fixed bracket 51. The middle part of the linkage fixed bracket 51 is rotatably connected to the middle part of a linkage rocker 52. Multiple nozzle installation units 53 are respectively slidably connected to both sides of the linkage fixed bracket 51 and the middle part of the linkage rocker 52. The lower parts of the multiple nozzle installation units 53 are respectively provided with the nozzle heads 6. Linkage control units 54 are symmetrically and slidably connected to both ends of the linkage rocker 52. The lower ends of the multiple linkage control units 54 are respectively provided on the top surfaces of the multiple adjustable conveying and limiting mechanisms 3. The upper parts of the multiple nozzle installation units 53 and the upper parts of the multiple linkage control units 54 are respectively slidably connected to the middle part of a linkage sliding bracket 55. The bottom surfaces of both ends of the multiple linkage sliding brackets 55 are provided on the top surface of the main support platform 2. The linkage fixed bracket 51 includes a fixed cross beam 511. The middle part of the fixed cross beam 511 is rotatably connected to the middle part of the linkage rocker 52. A fixed nozzle installation block 512 is provided on the bottom surface of the middle part of the fixed cross beam 511. The nozzle head 6 is provided on one side of the fixed nozzle installation block 512. The two ends of the fixed cross beam 511 are respectively provided at the upper ends of linkage fixed columns 513. The bottom surfaces of the multiple linkage fixed columns 513 are all provided on the top surface of the main support platform 2. The nozzle installation unit 53 includes a linkage slider 531. A linkage groove 532 is formed in the middle of the linkage slider 531. A rocker slider 533 is rotatably connected inside the linkage groove 532. The middle part of the rocker slider 533 is slidably connected to the middle part of the linkage rocker 52. Linkage sliding grooves 534 are respectively formed in the middle of the rocker slider 533, above and below the linkage groove 532. The multiple linkage sliding grooves 534 are all slidably connected to the middle part of the linkage sliding bracket 55. A linkage nozzle installation block 535 is provided on the bottom surface of the linkage slider 531. The nozzle head 6 is provided on one side of the linkage nozzle installation block 535. The linkage control unit 54 includes a linkage control slider 541. A linkage control groove 542 is formed in the middle of the linkage control slider 541. A rocker transmission slider 543 is rotatably connected inside the linkage control groove 542. The middle part of the rocker transmission slider 543 is slidably connected to one end of the linkage rocker 52. Linkage control sliding grooves 544 are respectively formed in the middle of the rocker transmission slider 543, above and below the linkage control groove 542. The multiple linkage control sliding grooves 544 are all slidably connected to the middle part of the linkage sliding bracket 55. A linkage control rod 545 is provided on the bottom surface of the linkage control slider 541. The lower end of the linkage control rod 545 is provided on the top surface of the adjustable conveying and limiting mechanism 3. This design drives the two linkage control units 54 to slide along the linkage sliding bracket 55 respectively through the adjustment movements of the two adjustable conveying and limiting mechanisms 3, thereby driving the linkage rocker 52 to swing.Thereby, the plurality of nozzle installation units 53 are driven to slide along the linkage sliding bracket 55, respectively, so as to adjust the arrangement distance of the plurality of nozzle terminals 6, and adjust the width adapted to the coding coverage of the plurality of nozzle terminals 6.

[0037] Operation principle: First, according to the size of the SMT patch to be coded, adjust the distance between the two adjustable transmission limit mechanisms 3, adjust the drive mechanism 4 to drive the main transmission shaft 42 to rotate through the drive motor 41, and through the engagement of multiple driving bevel gears 44 with the driven bevel gears 45, respectively drive multiple bidirectional screws 46 to rotate, and then drive multiple driving control blocks 47 to move, thereby driving the two limit stop bars 31 to move, so as to adjust the width adapted to the transmission limit; through the adjustment movement of the two adjustable transmission limit mechanisms 3, drive the two linkage control units 54 to slide along the linkage sliding bracket 55 respectively, thereby driving the linkage The rocker 52 swings, thereby driving the multiple nozzle installation units 53 to slide along the linked sliding bracket 55 respectively, so as to adjust the arrangement distance of the multiple spray terminals 6 to adjust the width of the coding coverage of the multiple spray terminals 6; after the adjustment is completed, the conveyor belt conveys the SMT patches to be coded to the bottom of the multiple spray terminals in turn, and the SMT patches on the conveyor belt 1 are limited and aligned through the limit stop bar 31 and the multiple limit roller units 32, and the conical limit roller 323 presses the SMT patches under the action of the downward pressure spring 325 to prevent sliding; the SMT patches are coded by multiple spray terminals 6, so that multiple coding can be achieved in a single pass.

[0038] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An inkjet printer for SMT chip mounting, comprising a conveyor belt (1), characterized in that: A main support platform (2) is provided in the middle of the conveyor belt (1). Adjustable conveyor limiting mechanisms (3) are symmetrically provided on both sides of the top surface of the main support platform (2) and the conveyor belt (1). A plurality of the adjustable conveyor limiting mechanisms (3) are all provided in the middle of an adjustment driving mechanism (4). The adjustment driving mechanism (4) is provided on the top surface of the main support platform (2). An injection head adjustment linkage mechanism (5) is provided above the plurality of adjustable conveyor limiting mechanisms (3). A plurality of injection heads (6) are provided inside the injection head adjustment linkage mechanism (5). The plurality of injection heads (6) are all electrically connected to a control chassis (7). The control chassis (7) is provided on one side of the main support platform (2). The adjustable conveyor limiting mechanism (3) includes a limiting strip (31). A plurality of limiting roller units (32) are provided on one side of the limiting strip (31). The two ends of the limiting strip (31) are symmetrically and rotatably connected to one ends of limiting support telescopic retaining arms (33). The other ends of the plurality of limiting support telescopic retaining arms (33) are all provided on the top surface of the main support platform (2). The limiting roller unit (32) includes a roller shaft (321). The middle of the roller shaft (321) is provided on one side of the limiting strip (31). A gasket nut (322) is provided on the upper part of the roller shaft (321). A tapered limiting roller (323), a spring gasket (324), and a downward pressure spring (325) are sequentially sleeved on the lower part of the roller shaft (321) from bottom to top. The limiting support telescopic retaining arm (33) includes a fixed swing arm (331). One end of the fixed swing arm (331) is rotatably connected to the upper part of a limiting support fixed seat (332). The bottom surface of the limiting support fixed seat (332) is provided on the top surface of the main support platform (2). A sliding limiting block (333) is provided on the top surface of the fixed swing arm (331). The sliding limiting block (333) is slidably connected to the inside of a sliding limiting groove (334). The sliding limiting groove (334) is opened on the top surface of a telescopic support arm (335). One end of the telescopic support arm (335) is rotatably connected to one end of the limiting strip (31). Auxiliary strips (336) are provided on one side of the fixed swing arm (331) and one side of the telescopic support arm (335). The nozzle adjustment linkage mechanism (5) includes a linkage fixed bracket (51). The bottom surfaces of both ends of the linkage fixed bracket (51) are provided on the top surface of the main support platform (2). One of the nozzle heads (6) is provided at the lower part of the linkage fixed bracket (51). The middle part of the linkage fixed bracket (51) is rotatably connected to the middle part of a linkage rocker (52). A plurality of nozzle mounting units (53) are respectively slidably connected to both sides of the linkage fixed bracket (51) and the middle part of the linkage rocker (52). The nozzle heads (6) are respectively provided at the lower parts of the plurality of nozzle mounting units (53). Linkage control units (54) are symmetrically and slidably connected to both ends of the linkage rocker (52). The lower ends of the plurality of linkage control units (54) are respectively provided on the top surfaces of the plurality of adjustable conveying limiting mechanisms (3). The upper parts of the plurality of nozzle mounting units (53) and the upper parts of the plurality of linkage control units (54) are respectively slidably connected to the middle part of a linkage sliding bracket (55). The bottom surfaces of both ends of the plurality of linkage sliding brackets (55) are provided on the top surface of the main support platform (2).

2. The inkjet printer for SMT chip mounter according to claim 1, characterized in that: The top surface of the main support platform (2) is provided below the conveying surface of the conveyor belt (1) to ensure the flat conveying of the conveyor belt (1).

3. A coding machine for SMT patching according to claim 1, characterized in that: The adjustment driving mechanism (4) includes a driving motor (41). The driving motor (41) is arranged on the other side of the main support platform (2) through a motor bracket. The execution end of the driving motor (41) is drivingly connected to the middle part of a main transmission shaft (42). The main transmission shaft (42) is arranged on the top surface of the main support platform (2) through a plurality of transmission fixing blocks (43). Both ends of the main transmission shaft (42) are respectively rotatably connected to one side of a transmission support (49). Driving bevel gears (44) are respectively coaxially connected to both ends of the main transmission shaft (42). A plurality of driven bevel gears (45) are respectively meshingly connected to the plurality of driving bevel gears (44). One ends of a plurality of bidirectional lead screws (46) are respectively coaxially connected to the plurality of driven bevel gears (45). Driving control blocks (47) are respectively symmetrically and threadedly connected to the middle parts of the plurality of bidirectional lead screws (46). The plurality of driving control blocks (47) are respectively provided on the top surfaces of the plurality of adjustable conveying limiting mechanisms (3). One ends of the plurality of bidirectional lead screws (46) are respectively rotatably connected to the middle parts of the transmission support (49). The other ends of the plurality of bidirectional lead screws (46) are respectively arranged on the top surface of the main support platform (2) through lead screw fixing blocks (48).

4. A coding machine for SMT chip mounting according to claim 1, characterized in that: The linkage fixed bracket (51) includes a fixed cross beam (511). The middle part of the fixed cross beam (511) is rotatably connected to the middle part of the linkage rocker (52). A fixed nozzle mounting block (512) is provided on the bottom surface of the middle part of the fixed cross beam (511). The nozzle head (6) is provided on one side of the fixed nozzle mounting block (512). The two ends of the fixed cross beam (511) are respectively provided at the upper ends of linkage fixed columns (513). The bottom surfaces of the plurality of linkage fixed columns (513) are all provided on the top surface of the main support platform (2).

5. A jet printer for SMT patching according to claim 1, characterized in that: The nozzle installation unit (53) includes a linkage slider (531). A linkage groove (532) is formed in the middle of the linkage slider (531). A rocker slider (533) is rotatably connected inside the linkage groove (532). The middle of the rocker slider (533) is slidably connected to the middle of the linkage rocker (52). Linkage sliding grooves (534) are respectively formed above and below the middle of the rocker slider (533) and the middle of the linkage groove (532). A plurality of the linkage sliding grooves (534) are all slidably connected to the middle of the linkage sliding bracket (55). A linkage nozzle installation block (535) is provided on the bottom surface of the linkage slider (531). The nozzle head (6) is provided on one side of the linkage nozzle installation block (535).

6. A coding machine for SMT chip mounting according to claim 1, characterized in that: The linkage control unit (54) includes a linkage control slider (541). A linkage control groove (542) is formed in the middle of the linkage control slider (541). A rocker transmission slider (543) is rotatably connected inside the linkage control groove (542). The middle of the rocker transmission slider (543) is slidably connected to one end of the linkage rocker (52). Linkage control sliding grooves (544) are respectively formed above and below the middle of the rocker transmission slider (543) and the middle of the linkage control groove (542). A plurality of the linkage control sliding grooves (544) are all slidably connected to the middle of the linkage sliding bracket (55). A linkage control rod (545) is provided on the bottom surface of the linkage control slider (541). The lower end of the linkage control rod (545) is provided on the top surface of the adjustable transmission limit mechanism (3).

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