A food packaging bag inkjet printer

Abstract

The utility model discloses a kind of food packaging bag's ink-jet printer, including conveyer, the upper side middle part of conveyer is equipped with roof rack between front and back two ends, further include ink-jet mechanism;Ink-jet mechanism: it includes electro-hydraulic push rod, lifting frame, ink-jet head and ink-jet auxiliary assembly, the upper side right end of roof rack is set to electro-hydraulic push rod, the telescopic end of electro-hydraulic push rod is equipped with lifting frame, the middle part of lifting frame is equipped with ink-jet head, the lower side of lifting frame is equipped with annular evenly distributed ink-jet auxiliary assembly, further include single-chip microcontroller, the external of conveyer is located in single-chip microcontroller, this food packaging bag's ink-jet printer, by transmission element, utilize slope extrusion to make the folding element of device to the ink-jet part of food packaging bag carry out wrinkle flattening operation, avoid the influence to package bag ink-jet due to food packaging bag wrinkle, meanwhile, the food packaging bag flattening element of device can be automatically reset by elastic element, it is convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of food packaging technology, specifically to a coding machine for food packaging bags. Background Technology

[0002] Food packaging bags are thin-film containers that come into direct contact with food and are used to hold and protect it. They are mainly used for food preservation, storage, and transportation. After food is packaged, it needs to be marked with a coding machine to enable product traceability and display production information. In existing technology: Authorization Publication No. CN 222713158 U's patent discloses a coding device for food packaging bags, including a frame, a frame plate on the upper left side of the frame, a sliding plate slidably disposed inside the frame plate, a coding machine at the lower end of the sliding plate, an electric push rod at the upper end of the frame plate, the telescopic end of the electric push rod being connected to the upper end of the sliding plate, a conveying mechanism for conveying the packaging bags disposed inside the frame, and positioning mechanisms disposed on the front and rear sides of the frame. The coding device for food packaging bags described in this invention ensures that each packaging bag is stably positioned in a predetermined location when entering the coding area, and also ensures that the coding machine maintains the optimal working distance and angle with the surface of the packaging bag, which is conducive to uniform ink droplet deposition, resulting in clear and full coding characters and high barcode and QR code scanning rates. However, when this device codes the surface of the packaging bag, if there are wrinkles in the coding area, the coding clarity will be insufficient, affecting the subsequent normal use of the coded material. Therefore, we propose a coding machine for food packaging bags. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a coding machine for food packaging bags. The device uses a transmission element and an inclined plane to squeeze and smooth the coding area of ​​the food packaging bag by a smoothing element, so as to avoid the coding of the packaging bag being affected by the wrinkles. At the same time, the food packaging bag smoothing element can automatically reset through an elastic element, which is convenient to operate and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a coding machine for food packaging bags, including a conveyor, a top frame between the front and rear ends of the upper middle part of the conveyor, and a coding mechanism;

[0005] The coding mechanism includes an electro-hydraulic actuator, a lifting frame, a coding terminal, and coding auxiliary components. The electro-hydraulic actuator is located on the upper right side of the top frame. The telescopic end of the electro-hydraulic actuator is equipped with a lifting frame. A coding terminal is located in the middle of the lifting frame. Coding auxiliary components are evenly distributed in a ring on the lower side of the lifting frame. This device uses a transmission element and inclined plane extrusion to make the smoothing element of the device smooth out the wrinkles on the coding area of ​​the food packaging bag, avoiding the impact of wrinkles on the coding of the packaging bag. At the same time, the food packaging bag smoothing element of the device can automatically reset through an elastic element, making it easy to operate.

[0006] Furthermore, it also includes a microcontroller, which is located outside the conveyor. The input terminal of the microcontroller is electrically connected to an external power source, and the output terminal of the microcontroller is electrically connected to the input terminals of the conveyor and the spray nozzle, respectively, to facilitate the control of the electrical components inside the device.

[0007] Furthermore, the conveyor is equipped with guide seats at both the front and rear ends of its upper side. A laser sensor two is provided on the front right end of the rear guide seat. The laser sensor two is bidirectionally electrically connected to the microcontroller to limit the coding of the food packaging bag and detect the movement position of the food packaging bag.

[0008] Furthermore, the coding auxiliary component includes an inclined seat, an inclined dovetail groove, a slide, a fixed shaft, and a smoothing roller. The inclined seats are evenly arranged in a ring on the lower side of the lifting frame. An inclined dovetail groove is opened on the bottom inclined surface of each inclined seat. A slide is slidably connected inside each inclined dovetail groove. Two smoothing rollers are provided at the lower end of each slide through the fixed shaft, which perform wrinkling and smoothing operations on the coding area of ​​the food packaging bag from the center to the periphery.

[0009] Furthermore, the coding auxiliary component also includes a fixed seat 1, a fixed seat 2, a telescopic column, and a spring. The fixed seat 1 is respectively located on the upper end of the side of the slide away from the center of the inkjet head. The fixed seat 2 is provided at the end of the inclined dovetail groove away from the center of the inkjet head. The fixed seat 2 and the horizontally adjacent fixed seat 1 are provided with a telescopic column and a spring. The spring is movably connected to the outer end of the adjacent telescopic column, so that the smoothing roller inside the inkjet printer of the food packaging bag can automatically reset after movement.

[0010] Furthermore, the coding mechanism also includes a laser sensor, which is located on the upper left side of the lifting frame. The laser sensor is bidirectionally electrically connected to the microcontroller to detect and upload the vertical movement position of the lifting frame inside the coding machine for food packaging bags.

[0011] Furthermore, the coding mechanism also includes guide rods, which are symmetrically arranged longitudinally on the upper left side of the lifting frame. The upper ends of the guide rods are slidably connected to the round holes opened inside the top frame to bear the radial pressure applied by the lifting frame to the telescopic end of the electro-hydraulic actuator in the coding machine of the food packaging bag.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This inkjet printer for food packaging bags has the following advantages:

[0013] When using a coding machine for food packaging bags, the coding auxiliary component utilizes inclined extrusion to allow the smoothing element of the device to smooth out wrinkles from the center outwards on the coding area of ​​the food packaging bag, avoiding any impact on coding due to wrinkles. At the same time, the food packaging bag smoothing element can automatically reset through an elastic element, making operation convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural schematic diagram of the lifting frame of this utility model;

[0016] Figure 3 This is an enlarged structural diagram of point A in this utility model.

[0017] In the diagram: 1 Conveyor, 2 Microcontroller, 3 Guide Seat, 4 Top Frame, 5 Inkjet Coding Mechanism, 51 Electro-hydraulic Push Rod, 52 Lifting Frame, 53 Inkjet Coding Station, 54 Inkjet Coding Auxiliary Components, 541 Inclined Seat, 542 Inclined Dovetail Groove, 543 Slide Seat, 544 Fixed Shaft, 545 Smoothing Roller, 546 Fixed Seat 1, 547 Fixed Seat 2, 548 Telescopic Column, 549 Spring, 55 Laser Sensor 1, 56 Guide Rod, 6 Laser Sensor 2. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This embodiment provides a technical solution: a coding machine for food packaging bags, including a conveyor 1, a top frame 4 between the front and rear ends of the upper middle part of the conveyor 1, and a microcontroller 2 located outside the conveyor 1. The input end of the microcontroller 2 is electrically connected to an external power supply, and the output end of the microcontroller 2 is electrically connected to the input end of the conveyor 1. The microcontroller 2 starts the conveyor 1, and the food packaging bag on the upper left end of the conveyor 1 is horizontally conveyed to the right by the contact friction of the belt inside the conveyor 1. The machine also includes a coding mechanism 5.

[0020] The conveyor 1 has guide seats 3 at both the front and rear ends. The right front end of the rear guide seat 3 is equipped with a laser sensor 6. The laser sensor 6 is bidirectionally electrically connected to the microcontroller 2. As the food packaging bag moves horizontally to the right along the belt of the conveyor 1, the two guide seats 3 cooperate with each other to limit the food packaging bag on the belt in the direction of belt movement, so as to avoid the food packaging bag being located at the longitudinal edge of the belt and affecting the coding effect in the subsequent coding process. At the same time, the microcontroller 2 activates the laser sensor 6. The laser sensor 6 emits a light signal to the rear right end of the front guide seat 3 and reflects it back to the initial position. The longitudinal distance between the two guide seats 3 is detected according to the propagation time and speed of the light signal, and the detection result is transmitted to the microcontroller 2 in the form of an electrical signal. When the food packaging bag passes the laser sensor 6 along the belt, the uploaded result of the laser sensor 6 changes. At this time, the food packaging bag is located below the inkjet terminal 53.

[0021] The coding mechanism 5 includes an electro-hydraulic actuator 51, a lifting frame 52, a coding terminal 53, and a coding auxiliary component 54. The electro-hydraulic actuator 51 is located on the upper right side of the top frame 4. The telescopic end of the electro-hydraulic actuator 51 is provided with the lifting frame 52. The middle part of the lifting frame 52 is provided with the coding terminal 53. The lower side of the lifting frame 52 is provided with a ring of evenly distributed coding auxiliary components 54. The output end of the microcontroller 2 is electrically connected to the input end of the coding terminal 53.

[0022] The coding auxiliary component 54 includes inclined seats 541, inclined dovetail grooves 542, slides 543, fixed shafts 544, and smoothing rollers 545. The inclined seats 541 are evenly arranged in a ring on the lower side of the lifting frame 52. The bottom inclined surface of each inclined seat 541 is provided with an inclined dovetail groove 542. Slides 543 are slidably connected inside each inclined dovetail groove 542. Two smoothing rollers 545 are provided at the lower end of each slide 543 through the fixed shaft 544. The coding auxiliary component 54 also includes a first fixed seat 546, a second fixed seat 547, a telescopic column 548, and a spring 545. 49. Fixed seat 1 546 is respectively set on the upper end of the side of the slide 543 away from the center of the spraying terminal 53. Fixed seat 2 547 is set at the end of the inclined dovetail groove 542 away from the center of the spraying terminal 53. Telescopic column 548 and spring 549 are provided between fixed seat 2 547 and the horizontally adjacent fixed seat 1 546. Spring 549 is movably sleeved with the outer end of the adjacent telescopic column 548. The coding mechanism 5 also includes a laser sensor 55. The laser sensor 55 is set on the upper left end of the lifting frame 52. The laser sensor 55 is bidirectionally electrically connected to the single-chip microcomputer 2.

[0023] When using the device to perform inkjet coding on food packaging bags, first connect the ink inlet of the inkjet terminal 53 to the external ink supply pipeline to supply inkjet raw materials to the inkjet terminal 53. When the food packaging bag is below the inkjet terminal 53, the microcontroller 2 then shuts down the conveyor 1. At the same time, the microcontroller 2 activates the electro-hydraulic actuator 51, causing its telescopic end to drive the lifting frame 52 to move vertically downward. The lifting frame 52 drives the inclined seat 541 to move vertically downward simultaneously. The inclined seat 541 is slidably connected to the slide 543 through its inclined dovetail groove 542, thereby driving the slide 543, the fixed shaft 544 at the bottom of the slide 543, and the smoothing roller 545 to move vertically downward. When the smoothing roller 545 moves vertically downward to a certain extent, the bottom of the smoothing roller 545 presses against the upper surface of the food packaging bag. The smoothing roller 545, under pressure, slides along the inclined dovetail groove 542 towards the end furthest from the center of the printing port 53. The telescopic end of the telescopic column 548 and the spring 549 retract. During its movement, the smoothing roller 545 smooths out wrinkles on the upper surface of the food packaging bag through contact friction between its bottom and the bag's surface. Simultaneously, the four sets of smoothing rollers 545 within the device work together to smooth out the printing area of ​​the food packaging bag from the center outwards, preventing wrinkles from affecting the printing. During this process, the microcontroller 2 activates the laser sensor 55. The laser sensor 55 measures the vertical distance between the lifting frame 52 and the top of the top frame 4 using the same principle. The measurement results are transmitted to the microcontroller 2 as an electrical signal. Based on this signal, the microcontroller 2 controls the opening and closing of the telescopic end of the electro-hydraulic actuator 51, thereby controlling the vertical movement of the lifting frame 52. Subsequently, the microcontroller 2 activates the inkjet printer 53 to perform inkjet printing on the upper surface of the food packaging bag. The inkjet printer 53 mainly includes a pressure pump, filter assembly, printhead system, and circuit control system. Its working principle is based on electric field deflection technology to achieve non-contact inkjet printing of quality traceability codes. After the food packaging bag is inkjet printed, the microcontroller 2 controls the inkjet printer 53 to return to its initial position to prepare for the next inkjet printing. During this process, the compression and reset force of the spring 549 causes the slide 543 to move along the corresponding oblique dovetail groove 542. The corresponding smoothing roller 545 is driven back to its initial position to prepare for the next smoothing of wrinkles in the coding area of ​​the food packaging bag. After the device has been used for a period of time, the staff will remove and replace the fixed seat 1 546 and fixed seat 2 547, as well as the telescopic column 548 and spring 549 between them (fixed seat 1 546 and fixed seat 2 547 are fixed to the corresponding installation parts in the device with screws) to avoid the aging of spring 549. The device uses a transmission element and inclined surface extrusion to make the smoothing element of the device smooth the wrinkles in the coding area of ​​the food packaging bag, avoiding the impact of wrinkles on the coding of the packaging bag. At the same time, the food packaging bag smoothing element of the device can automatically reset through the elastic element, which is convenient to operate.

[0024] The coding mechanism 5 also includes guide rods 56, which are symmetrically arranged longitudinally on the upper left side of the lifting frame 52. The upper ends of the guide rods 56 are slidably connected to the circular holes opened inside the top frame 4. During the vertical movement of the lifting frame 52, the guide rods 56 are driven to slide adaptively along the corresponding circular holes. Through the sliding between the two, the radial pressure applied by the lifting frame 52 and its connecting elements to the telescopic end of the electro-hydraulic actuator 51 is borne, thus preventing the telescopic end of the electro-hydraulic actuator 51 from being damaged due to radial pressure.

[0025] The working principle of the inkjet printer for food packaging bags provided by this utility model is as follows: When using the device to perform inkjet printing on food packaging bags, firstly, the ink inlet of the inkjet printer 53 is connected to the external ink supply pipeline to supply inkjet printing material to the inkjet printer 53. Then, the microcontroller 2 starts the conveyor 1. Through the contact friction of the belt inside the conveyor 1, the food packaging bag on the upper left side of the conveyor 1 is horizontally conveyed to the right. During the horizontal rightward movement of the food packaging bag along the belt of the conveyor 1, the two guide seats 3 at the front and rear cooperate to limit the movement of the food packaging bag on the belt, so as to avoid the food packaging bag being located at the longitudinal edge of the belt and affecting the printing effect during the subsequent printing process. At the same time, during this process, the microcontroller 2 starts the conveyor 1. Microcontroller 2 activates laser sensor 6, which emits a light signal that illuminates the rear right end of the front guide seat 3 and reflects back to its initial position. Based on the propagation time and speed of the light signal, the longitudinal distance between the two guide seats 3 is detected, and the detection result is transmitted to microcontroller 2 as an electrical signal. When the food packaging bag passes by laser sensor 6 along the conveyor belt, the transmitted result changes. At this time, the food packaging bag is located below the spray nozzle 53. Microcontroller 2 then shuts down conveyor 1 and simultaneously activates electro-hydraulic actuator 51, causing its telescopic end to move the lifting frame 52 vertically downwards. During the vertical movement of the lifting frame 52, the guide rod 56 adaptively slides along the corresponding circular hole. This sliding action between the two controls the longitudinal distance between the guide rod and the guide rod. The telescopic end of the electro-hydraulic actuator 51 is supported by the radial pressure applied by the lifting frame 52 and its connecting elements, preventing damage to the telescopic end of the electro-hydraulic actuator 51 due to radial pressure. The lifting frame 52 drives the inclined seat 541 to move vertically downwards synchronously. The inclined seat 541 is slidably connected to the slide 543 through its inclined dovetail groove 542, thereby driving the slide 543, the fixed shaft 544 at the bottom of the slide 543, and the smoothing roller 545 to move vertically downwards. When the smoothing roller 545 moves vertically downwards to a certain extent, the bottom of the smoothing roller 545 presses against the upper surface of the food packaging bag. Under pressure, the upper end of the smoothing roller 545 slides along the inclined dovetail groove 542 towards the end away from the center of the spray nozzle 53. The telescopic end of the telescopic column 548 and the spring 549 retract, and the smoothing roller 545... During its movement, the device uses the contact friction between its bottom and the upper surface of the food packaging bag to smooth out wrinkles on that area. Simultaneously, four sets of smoothing rollers 545 within the device work together to smooth the coding area of ​​the food packaging bag from the center outwards, preventing wrinkles from affecting the coding. During this process, the microcontroller 2 activates the laser sensor 55. The laser sensor 55, operating on the same principle, measures the vertical distance between the lifting frame 52 and the top of the top frame 4, transmitting the measurement result to the microcontroller 2 as an electrical signal. Based on this result, the microcontroller 2 controls the opening and closing of the telescopic end of the electro-hydraulic actuator 51, thereby controlling the vertical movement position of the lifting frame 52.Subsequently, the microcontroller 2 activates the inkjet printer 53 to perform inkjet printing on the upper surface of the food packaging bag. The inkjet printer 53 mainly includes a pressure pump, filter assembly, printhead system, and circuit control system. Its working principle is based on electric field deflection technology to achieve non-contact inkjet printing of quality traceability codes. After the food packaging bag is inkjet printed, the microcontroller 2 controls the inkjet printer 53 to return to its initial position in preparation for the next inkjet printing. During this process, the compression and reset force of the spring 549 causes the slide 543 to move along the corresponding oblique dovetail groove 542, driving the corresponding smoothing roller 545 to return to its initial position, preparing for the smoothing of wrinkles in the inkjet area of ​​the food packaging bag for the next inkjet printing. After the device has been used for a period of time, the staff will remove and replace the fixed base 1 546 and fixed base 2 547, as well as the telescopic column 548 and spring 549 between them (both fixed base 1 546 and fixed base 2 547 are fixed to the corresponding installation parts inside the device with screws), thereby preventing the spring 549 from aging.

[0026] It is worth noting that the microcontroller 2 disclosed in the above embodiments can be an STM8S, the conveyor 1 can be a GTX-003 micro electric conveyor belt conveyor, the electro-hydraulic actuator 51 can be a DYZW integral straight micro electro-hydraulic actuator, the spray nozzle 53 can be an XP600 nozzle, and both the laser sensor 1 55 and the laser sensor 2 6 can be WH-LRF laser rangefinders. The microcontroller 2 controls the operation of the conveyor 1, the electro-hydraulic actuator 51, the spray nozzle 53, the laser sensor 1 55, and the laser sensor 2 6 using methods commonly used in the prior art.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A coding machine for food packaging bags, comprising a conveyor (1), wherein a top frame (4) is provided between the front and rear ends of the upper middle part of the conveyor (1), characterized in that: It also includes a coding mechanism (5); The coding mechanism (5) includes an electro-hydraulic push rod (51), a lifting frame (52), a coding terminal (53), and a coding auxiliary component (54). The electro-hydraulic push rod (51) is located on the upper right side of the top frame (4). The telescopic end of the electro-hydraulic push rod (51) is provided with a lifting frame (52). The middle part of the lifting frame (52) is provided with a coding terminal (53). The lower side of the lifting frame (52) is provided with a ring-shaped and evenly distributed coding auxiliary component (54).

2. The inkjet printer for food packaging bags according to claim 1, characterized in that: It also includes a microcontroller (2), which is located outside the conveyor (1). The input end of the microcontroller (2) is electrically connected to an external power supply, and the output end of the microcontroller (2) is electrically connected to the input ends of the conveyor (1) and the spraying terminal (53).

3. The inkjet printer for food packaging bags according to claim 2, characterized in that: The conveyor (1) has guide seats (3) at both the front and rear ends on the upper side. The right front end of the rear guide seat (3) is equipped with a laser sensor (6), which is bidirectionally electrically connected to the microcontroller (2).

4. The inkjet printer for food packaging bags according to claim 1, characterized in that: The coding auxiliary component (54) includes an inclined seat (541), an inclined dovetail groove (542), a slide (543), a fixed shaft (544), and a smoothing roller (545). The inclined seats (541) are arranged in a ring and uniformly on the lower side of the lifting frame (52). The inclined dovetail groove (542) is opened on the bottom inclined surface of the inclined seat (541). The slide (543) is slidably connected inside the inclined dovetail groove (542). The lower end of the slide (543) is provided with two smoothing rollers (545) through the fixed shaft (544).

5. The inkjet printer for food packaging bags according to claim 4, characterized in that: The coding auxiliary component (54) also includes a first fixed seat (546), a second fixed seat (547), a telescopic column (548), and a spring (549). The first fixed seat (546) is respectively located on the upper end of the side of the slide (543) away from the center of the inkjet head (53). The second fixed seat (547) is provided at the end of the oblique dovetail groove (542) away from the center of the inkjet head (53). The second fixed seat (547) and the horizontally adjacent first fixed seat (546) are provided with a telescopic column (548) and a spring (549). The spring (549) is movably connected to the outer end of the adjacent telescopic column (548).

6. The inkjet printer for food packaging bags according to claim 2, characterized in that: The coding mechanism (5) also includes a laser sensor (55), which is located on the upper left side of the lifting frame (52) and is bidirectionally electrically connected to the microcontroller (2).

7. The inkjet printer for food packaging bags according to claim 1, characterized in that: The coding mechanism (5) also includes guide rods (56), which are symmetrically arranged longitudinally on the upper left side of the lifting frame (52). The upper ends of the guide rods (56) are slidably connected to the round holes opened inside the top frame (4).

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