Code spraying equipment

Abstract

Code spraying equipment relates to the technical field of code spraying equipment and comprises a main conveying line, code spraying equipment, a leveling device used for leveling an area to be subjected to code spraying of a packaging bag and a follow-up device used for driving the leveling device to synchronously move along with the packaging bag, and the leveling device comprises a leveling suction cup, a lifting mechanism and a translation mechanism. The flattening device is driven by the follow-up device to synchronously move along with the packaging bag, the lifting mechanism drives the flattening suction cups to move downwards to make contact with the packaging bag, and after the flattening suction cups tightly suck the packaging bag, the translation mechanism drives the flattening suction cups to move towards the periphery relative to an area to be subjected to code spraying so as to flatten the area to be subjected to code spraying. Before code spraying, the flattening sucker is used for tightly sucking the to-be-sprayed area of the packaging bag and pulling the to-be-sprayed area towards the periphery, and after the to-be-sprayed area is flattened, code spraying is carried out through the code spraying device, so that the influence of wrinkles on code spraying is eliminated, and the code spraying quality and effect are better.

Description

Technical Field

[0001] The invention relates to the technical field of inkjet equipment. Background Art

[0002] Inkjet coding equipment is an automated device used to print text, graphics, barcodes and other labels on the surface of various materials. It is widely used in packaging material printing due to its quick and convenient programming, high degree of automation, and extremely fast printing speed. Usually, inkjet coding equipment has certain requirements for the flatness of the surface of the packaging bag to be coded. The presence of wrinkles in the area to be coded will affect the quality and effect of the coding. When there are wrinkles on the surface of the packaging bag, it will cause uneven coding, making the edges of the coding blurred or unclear. At the wrinkles, the coding may be broken or missing, especially on small text or patterns. The coding at the wrinkles may also overlap, making the information difficult to recognize. Summary of the invention

[0003] In view of this, the present invention provides a coding device, which can flatten the area to be coded of the packaging bag before coding to eliminate the influence of wrinkles on coding, and the coding quality and effect are better.

[0004] To achieve the above objectives, the present invention provides the following technical solutions.

[0005] The coding equipment includes a main conveying line and a coding device. The main conveying line is used to convey packaging bags. It also includes a flattening device for flattening the area of ​​the packaging bag to be coded and a follower device for driving the flattening device to move synchronously with the packaging bag. The flattening device includes: Flattening suction cups, with multiple ones; A lifting mechanism is used to drive the leveling suction cup to rise or fall; A translation mechanism, used for driving the leveling suction cup to translate; The leveling device moves synchronously with the packaging bag under the drive of the follow-up device, and the lifting mechanism drives the leveling suction cup to move downward to contact the packaging bag. After the leveling suction cup sucks the packaging bag tightly, the translation mechanism drives each leveling suction cup to move around relative to the area to be coded to level the area to be coded. The area to be coded is coded when passing through the coding device. After the coding is completed, the leveling suction cup releases the packaging bag and is reset under the drive of the translation mechanism, the lifting mechanism and the follow-up device.

[0006] Before coding, the flattening suction cup is used to suck the area of ​​the packaging bag to be coded and pull it around, and then the area to be coded is flattened before coding through the coding device, thereby eliminating the influence of wrinkles on coding and making the coding quality and effect better. The follow-up device is used to drive the flattening suction cup to move simultaneously with the packaging bag, so that the flattening suction cup can complete the flattening operation while the packaging bag is being conveyed, and the main conveying line of the packaging bag can keep running without stopping, which can effectively improve the efficiency of coding.

[0007] Preferably, the leveling device further includes a flipping mechanism, which can drive the leveling suction cup to flip outward and reset inward relative to the area to be coded. After the leveling suction cup sucks the area to be coded, the lifting mechanism drives the leveling suction cup to rise by a preset distance, and the translation mechanism drives the leveling suction cup to move inward by a preset distance relative to the area to be coded. While the leveling suction cup moves inward, the flipping mechanism drives the leveling suction cup to flip outward by a preset angle, so that the leveling suction cup and the area to be coded are bent, and after the bend is formed, the translation mechanism drives the leveling suction cup to move outward relative to the area to be coded, so that the area to be coded is leveled.

[0008] Preferably, there are multiple leveling devices, and the follower device includes an annular synchronous conveyor belt. Each leveling device is installed on the synchronous conveyor belt, and the synchronous conveyor belt drives each leveling device to rotate in an annular manner so that the leveling device moves or resets synchronously with the packaging bag.

[0009] Preferably, the inkjet printer of the present invention further comprises a leveling device, the leveling device comprising: The vibration mechanism includes a driving motor, a rotating cam and a vibration plate, wherein the vibration plate is located below the conveyor belt of the main conveyor line to lift up the conveyor belt, the driving motor is used to drive the rotating cam to rotate, and the rotating cam contacts the vibration plate to drive the vibration plate to vibrate up and down; A flattening mechanism, comprising a plurality of eccentric pressing rollers capable of eccentric rotation, the eccentric pressing rollers being located above the conveyor belt of the main conveying line so as to contact the upper surface of the packaging bag; After the packaging bag is coded, it is transported by the main conveyor line into the leveling device. The vibration plate is driven by the drive motor and the rotating cam to vibrate up and down, pushing the conveyor belt of the main conveyor line to vibrate up and down. The eccentric pressure roller rotates eccentrically and beats the upper surface of the packaging bag, so that the packaging bag is restored to flatness under the action of the vibration plate and the eccentric pressure roller.

[0010] Preferably, the coding device comprises: Spray terminal, used to spray code on packaging bags; The inkjet printer drive mechanism is connected to the inkjet printer terminal, including a locking assembly; A follower slide bar, which is connected to the inkjet printer drive mechanism and can slide and retract; When the leveling device passes through the inkjet device, the locking assembly locks the leveling device, and the follower slide bar is driven out by the leveling device to make the inkjet drive mechanism move synchronously with the leveling device. The inkjet drive mechanism drives the inkjet terminal to move horizontally relative to the area to be inkjet printed on the packaging bag to complete the inkjet printing. After the inkjet printing is completed, the locking assembly releases the leveling device, and the follower slide bar retracts to drive the inkjet terminal to reset.

[0011] Preferably, the inkjet drive mechanism is slidably connected to the follower slide rod, and the inkjet device also includes a buffer spring, which is respectively connected to the inkjet drive mechanism and the follower slide rod. When the locking assembly locks the leveling device, the inkjet drive mechanism is impacted by the leveling device and slides to compress the buffer spring, so that the kinetic energy generated by the impact is absorbed by the buffer spring.

[0012] Preferably, the leveling device is provided with a blocking block and a locking hole, and the inkjet drive mechanism further comprises: A driving screw rod is rotatably connected to the inkjet printer to drive the inkjet printer to move horizontally for inkjet printing; The locking assembly includes: A locking pin, which can be inserted into the locking hole to lock the leveling device and the inkjet drive mechanism; A locking cylinder connected to the locking bayonet to drive the locking bayonet to insert into or withdraw from the locking hole; A positioning rod, which can be engaged with the blocking block so that the locking pin is aligned with the locking hole; A positioning cylinder connected to the positioning rod to drive the positioning rod to engage with or disengage from the blocking block; When the leveling device passes through the inkjet device, the positioning cylinder drives the positioning rod to extend so that the positioning rod is engaged with the blocking block and the locking pin is aligned with the locking hole. The locking cylinder drives the locking pin to insert into the locking hole to lock the leveling device so that the inkjet drive mechanism and the leveling device move synchronously. The driving screw drives the inkjet terminal to move horizontally relative to the area to be coded on the packaging bag to complete the coding. After the coding is completed, the positioning cylinder drives the positioning rod to disengage from the blocking block, and the locking cylinder drives the locking pin to exit the locking hole to release the lock of the inkjet drive mechanism and the leveling device.

[0013] Preferably, the flipping mechanism comprises: A flip guide block is installed on the translation mechanism, and the flip guide block is provided with an arc-shaped flip cavity, and the flip cavity is connected to an external air pump; A flip guide rod, whose shape corresponds to the flip cavity and is slidably connected in the flip cavity, is fixedly connected to the leveling suction cup to drive the leveling suction cup to flip; A reset spring is disposed in the flip cavity and connected to the flip guide rod to provide the flip guide rod with elastic force to reset and pop out of the flip cavity; When the external air pump draws air, negative pressure is generated in the flipping cavity to draw the flipping guide rod back into the flipping cavity, so that the leveling suction cup is driven to flip outward at a preset angle. After the leveling suction cup releases the surface to be coded, the external air pump stops pumping air, and the reset spring pushes the flipping guide rod to reset and pop out of the flipping cavity.

[0014] Preferably, the lifting mechanism comprises: Lifting cylinder, used to drive the translation mechanism to rise or fall; A mounting plate, used for mounting the translation mechanism, which is fixedly connected to the lifting cylinder; The translation mechanism includes: There are a plurality of translation cylinders, which correspond one to one with the leveling suction cups, so that each leveling suction cup is driven to translate by the corresponding translation cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the coding device of the present invention.

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the inkjet coding device of the present invention from another viewing angle (part of the structure has been hidden for the convenience of display).

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the coding device and the leveling device.

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the coding device.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of part of the leveling device structure.

[0020] Figure 6 It is a cross-sectional view of the translation mechanism and the flipping structure.

[0021] Figure 7 This is a schematic diagram of pulling the suction cup flat and then flipping it over to pull the packaging bag to the coding area.

[0022] Figure 8 for Figure 2 A cross-sectional view of the inkjet printer in the state.

[0023] Fig. 9 for Figure 8 A magnified schematic diagram of center A.

[0024] Fig.10 for Figure 8 A magnified schematic diagram of point B in the middle.

[0025] Fig.11 It is a cross-sectional view of the coding device and the leveling device.

[0026] Reference numerals include: Inkjet device 1, inkjet terminal 11, follower slide rod 12, drive screw rod 13, mounting bracket 14, locking pin 141, locking cylinder 142, positioning rod 143, positioning cylinder 144, buffer spring 15; Leveling device 2, leveling suction cup 21, lifting cylinder 22, blocking block 221, locking hole 222, mounting plate 23, translation cylinder 24, flip guide block 25, flip cavity 251, return spring 252, flip guide rod 26; Follower device 3, synchronous conveyor belt 31; Leveling device 4, rotating cam 41, vibration plate 42, eccentric pressure roller 43; Main conveying line 5, conveyor belt 51; Packaging bag 6, rack 7. DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with specific embodiments.

[0028] Combination Figure 1-Figure 3 The coding equipment of this embodiment includes a main conveying line 5 and a coding device 1. The main conveying line 5 is used to convey the packaging bag 6, and also includes a flattening device 2 for flattening the area to be coded of the packaging bag 6 and a follower device 3 for driving the flattening device 2 to move synchronously with the packaging bag 6. Figure 5 As shown, the leveling device 2 comprises: Leveling suction cups 21. In this embodiment, one leveling device 2 is provided with two leveling suction cups 21; The lifting mechanism includes a lifting cylinder 22 and a mounting plate 23, wherein the mounting plate 23 is fixedly connected to the lifting cylinder 22; The translation mechanism includes a translation cylinder 24, which is fixedly connected to the mounting plate 23 to be driven to rise and fall by the lifting cylinder 22. One leveling device 2 is provided with two translation cylinders 24, and the translation cylinders 24 correspond to the leveling suction cups 21 one by one. Each leveling suction cup 21 is fixedly mounted on the corresponding translation cylinder 24 to be driven to translate by the corresponding translation cylinder 24. In this embodiment, the installation angle of the translation cylinder 24 is to be installed toward the center direction of the area to be coded, so that the leveling suction cup 21 can be driven to translate around the area to be coded; like Figure 2 As shown, the flattening devices 2 of this embodiment are provided with 16, and the follower device 3 includes two annular synchronous conveyor belts 31, which are symmetrically distributed on both sides of the main conveyor line 5 and driven by the same motor. The synchronous conveyor belts 31 have the same speed as the main conveyor line 5, and each flattening device 2 is symmetrically installed on the two synchronous conveyor belts 31, and the synchronous conveyor belts 31 drive each flattening device 2 to rotate in an annular manner. The flattening device 2 moves synchronously with the packaging bag 6 under the drive of the follower device 3, and the lifting cylinder 22 drives the flattening suction cup 21 to move downward to contact the packaging bag 6. After the flattening suction cup 21 sucks the packaging bag 6 tightly, the translation cylinder 24 drives each flattening suction cup 21 to move around relative to the area to be coded, so as to flatten the area to be coded. The area to be coded is coded when passing through the coding device 1. After the coding is completed, the flattening suction cup 21 releases the packaging bag 6 and resets under the drive of the translation cylinder 24, the lifting cylinder 22 and the synchronous conveyor belt 31.

[0029] Before coding, the flattening suction cup 21 is used to suck the area of ​​the packaging bag 6 to be coded and pull it around. After the area to be coded is flattened, it is passed through the coding device 1 for coding, thereby eliminating the influence of wrinkles on coding, so that the coding quality and effect are better. If only one flattening device 2 is set to flatten the packaging bag 6, the conveying interval of the packaging bag 6 will be enlarged and the conveying speed will be reduced, resulting in reduced efficiency of coding. By setting up multiple flattening devices 2, the conveying interval of the packaging bag 6 is shortened, and the synchronous conveyor belt 31 is set to enable each flattening device 2 to move synchronously with the conveying of the packaging bag 6. After the coding is completed, it can continue to return to the entrance of the packaging bag 6 and continue to absorb the next packaging bag 6 for flattening operation, so that each process is closely connected, the main conveyor line 5 does not need to stop, and the flattening operation and coding operation can be completed during the conveying process, thereby effectively improving the efficiency of coding.

[0030] The suction force of the flattening suction cup 21 should not be too strong, otherwise it is easy to leave obvious suction marks on the packaging bag 6, especially the film plastic packaging bag 6. However, if the suction force is too weak, it is easy for the flattening suction cup 21 to slip or detach when the packaging bag 6 is pulled horizontally, resulting in flattening failure. Figure 5-Figure 7 The leveling device 2 also includes a flipping mechanism, which can drive the leveling suction cup 21 to flip outward and reset inward relative to the coding area. The flipping mechanism includes: The flip guide block 25 is installed on the translation mechanism. The flip guide block 25 is provided with an arc-shaped flip cavity 251. The flip cavity 251 is connected to an external air pump. The flip guide rod 26 has a shape corresponding to the flip cavity 251 and is slidably connected in the flip cavity 251. The flip guide rod 26 is fixedly connected to the leveling suction cup 21 to drive the leveling suction cup 21 to flip; A return spring 252 is disposed in the flip cavity 251 and connected to the flip guide rod 26 to provide the flip guide rod 26 with an elastic force to return the flip cavity 251; After the flattening suction cup 21 sucks the area to be coded, the lifting cylinder 22 drives the flattening suction cup 21 to rise by a preset distance, and the translation cylinder 24 drives the flattening suction cup 21 to move inward by a preset distance relative to the area to be coded. While the flattening suction cup 21 moves inward, the external air pump pumps air, and negative pressure is generated in the flip chamber 251 to pull the flip guide rod 26 back to the flip chamber 251, so that the flattening suction cup 21 is driven to flip outward by a preset angle, and the flattening suction cup 21 and the area to be coded are bent. After the bending is formed, the translation cylinder 24 drives the flattening suction cup 21 to move outward relative to the area to be coded, so that the area to be coded is flattened. After the flattening suction cup 21 releases the surface to be coded, the external air pump stops pumping air, and the reset spring 252 pushes the flip guide rod 26 to reset and pop out of the flip chamber 251. The flattening suction cup 21 sucks the surface of the packaging bag 6 and then rises for a certain distance, so that the area to be coded is separated from the contact with the items in the packaging bag 6, so as to avoid wrinkles in the area to be coded due to the uneven surface of the items in the bag. Then the flattening suction cup 21 moves inward for a certain distance (with the center of the area to be coded as the inside and the area away from the center as the outside), and flips outward 90° while moving, so that the flattening suction cup 21 and the area to be coded form a bend. Then the flattening suction cup 21 moves outward again to expand the area to be coded. At this time, the flattening suction cup 21 and the bend will produce a clamping effect, so that the flattening suction cup 21 is less likely to slip or fall off.

[0031] Since the series of actions when the suction cup is pulled flat will pull up and bend the packaging bag 6, wrinkles may appear in other areas of the packaging bag 6. After the suction cup is released, the items in the packaging bag 6 may pile up and cannot recover by themselves, resulting in wrinkles that cannot be eliminated. When the subsequent packaging bags 6 are packed and stacked, they will be overlapped, which will cause the wrinkles to be compacted and produce creases or folds, making the packaging bag 6 unsightly. At the same time, for continuous packaging bags 6 that need to be cut in subsequent processes, the previous pulling up and bending operations will shorten the length of a single packaging bag 6, resulting in the position where the cutting is originally required to be offset, resulting in cutting errors. Figure 1-Figure 2 As shown, the inkjet printer of this embodiment further includes a leveling device 4, such as Fig.10 As shown, the leveling device 4 comprises: The vibration mechanism includes a driving motor (not shown), a rotating cam 41 and a vibration plate 42. The vibration plate 42 is located below the conveyor belt 51 of the main conveyor line 5 to lift up the conveyor belt 51. The driving motor is used to drive the rotating cam 41 to rotate. The rotating cam 41 contacts the vibration plate 42 to drive the vibration plate 42 to vibrate up and down. A flattening mechanism, comprising a plurality of eccentric pressing rollers 43 that can eccentrically rotate, the eccentric pressing rollers 43 being located above the conveyor belt 51 of the main conveyor line 5 so as to contact the upper surface of the packaging bag 6; After the packaging bag 6 is stenciled, it is transported by the main conveyor line 5 into the flattening device 4. The vibration plate 42 is driven by the driving motor and the rotating cam 41 to vibrate up and down, thereby pushing the conveyor belt 51 of the main conveyor line 5 to vibrate up and down. The eccentric pressing roller 43 rotates eccentrically and beats the upper surface of the packaging bag 6, so that the packaging bag 6 is restored to flatness under the action of the vibration plate 42 and the eccentric pressing roller 43. By setting up the flattening device 4, the surface of the packaging bag 6 and the items in the bag are restored to flatness by using the vibration plate 42 and the eccentric pressing roller 43 after the coding is completed, thereby avoiding the generation of creases or folds, or affecting the subsequent cutting process.

[0032] Usually, the position of the inkjet station 11 is fixed, and the packaging bags 6 are transported by the main conveyor line 5. Since the main conveyor line 5 is long and passes through multiple devices, its speed is easily affected and fluctuates. Even a slight speed fluctuation will cause the position of the inkjet coding to deviate, resulting in poor consistency of the inkjet coding and reduced quality of the inkjet coding. Fig. 9 As shown, the inkjet printer 1 of this embodiment includes: A spraying terminal 11, used for spraying codes on the packaging bags 6; A follower slide bar 12 is slidably connected to the frame 7 so as to be slidable and retractable, and is provided with a power source to drive the follower slide bar 12 to retract. The follower slide bar 12 may be in the form of an electric push rod or a single-acting cylinder; The inkjet printer driving mechanism includes a driving screw rod 13, a mounting bracket 14 and a locking assembly. The mounting bracket 14 is slidably connected to the follower slide rod 12. The driving screw rod 13 is rotationally connected to the mounting bracket 14. The inkjet printer terminal 11 is rotationally connected to the driving screw rod 13. The rotation of the driving screw rod 13 is used to drive the inkjet printer terminal 11 to move back and forth in a straight line, thereby driving the inkjet printer terminal 11 to move horizontally for inkjet printing. Figure 5 and Figure 6 As shown, the lifting cylinder 22 is provided with a blocking block 221 and a locking hole 222, and the locking assembly includes: A locking pin 141, which can be inserted into the locking hole 222 to lock the leveling device 2 and the inkjet drive mechanism; A locking cylinder 142 connected to the locking pin 141 to drive the locking pin 141 to insert into or withdraw from the locking hole 222; A positioning rod 143, which can be engaged with the blocking block 221 to align the locking pin 141 with the locking hole 222; A positioning cylinder 144 connected to the positioning rod 143 to drive the positioning rod 143 to engage with or disengage from the blocking block 221; like Fig.11As shown, when the leveling device 2 passes through the inkjet printer 1, the positioning cylinder 144 drives the positioning rod 143 to extend so that the positioning rod 143 is engaged with the blocking block 221, and the locking pin 141 is aligned with the locking hole 222. The locking cylinder 142 drives the locking pin 141 to insert into the locking hole 222 to lock the leveling device 2, and the follower slide 12 is driven to extend by the leveling device 2, so that the inkjet printer drive mechanism and the leveling device 2 move synchronously. The driving screw 13 drives the inkjet printer terminal 11 to translate relative to the area to be inkjet printed on the packaging bag 6 to complete the inkjet printing. After the inkjet printing is completed, the positioning cylinder 144 drives the positioning rod 143 to disengage from the blocking block 221, and the locking cylinder 142 drives the locking pin to withdraw from the locking hole 222 to release the locking of the inkjet printer drive mechanism and the leveling device 2, and the follower slide 12 retracts to drive the inkjet printer terminal 11 to reset. By locking the inkjet drive mechanism and the leveling device 2, it is ensured that the inkjet drive mechanism and the area to be inkjet printed remain relatively still, and then the lead screw is driven to drive the inkjet terminal 11 to move horizontally to complete the inkjet printing, thereby eliminating the influence of the speed fluctuation of the main conveyor line 5 and ensuring the quality and consistency of the inkjet printing.

[0033] When the spraying terminal 11 is driven by the follower slide bar 12 to move backward and reset (with the conveying direction of the packaging bag 6 as the front), the next leveling device 2 also moves forward along with the main conveying line 5. The two move in opposite directions, resulting in a certain degree of impact when the locking component contacts and locks with the leveling device 2, which is easy to cause damage to the equipment. Fig. 9 As shown, the inkjet coding device 1 of this embodiment also includes a buffer spring 15, which is respectively connected to the inkjet coding drive mechanism and the follower slide rod 12. When the locking assembly locks the leveling device 2, the inkjet coding drive mechanism is impacted by the leveling device 2 and slides to compress the buffer spring 15, so that the kinetic energy generated by the impact is absorbed by the buffer spring 15 to avoid damage to the equipment.

[0034] The specific working process of the coding equipment of this embodiment is as follows: The main conveyor line 5 conveys the packaging bag 6, and the synchronous conveyor belt 31 drives the leveling device 2 to move synchronously with the packaging bag 6. After the packaging bag 6 enters the range of the leveling device 2, the lifting cylinder 22 drives the leveling suction cup 21 to move downward to contact the packaging bag 6 and suck it tightly. After the leveling suction cup 21 sucks the area to be coded, the lifting cylinder 22 first drives the leveling suction cup 21 to rise a preset distance, and the translation cylinder 24 then drives the leveling suction cup 21 to move inward relative to the area to be coded by a preset distance. While moving inward, the flipping mechanism uses an external air pump to pump air to generate negative pressure in the flipping cavity 251, driving the flipping guide rod 26 and the leveling suction cup 21 to flip outward at a preset angle. After the bending is formed, the translation cylinder 24 drives the leveling suction cup 21 to move outward relative to the area to be coded, thereby leveling the area to be coded; When the area to be coded passes through the coding device 1, the positioning cylinder 144 drives the positioning rod 143 to extend and engage with the blocking block 221 of the leveling device 2, so that the locking pin 141 is aligned with the locking hole 222, and then the locking cylinder 142 drives the locking pin 141 to insert into the locking hole 222, thereby locking the leveling device 2, and the follower slide rod 12 is driven and extended by the leveling device 2, so that the coding drive mechanism and the leveling device 2 move synchronously, and the driving screw 13 drives the inkjet terminal 11 to translate relative to the area to be coded to complete the coding. During the locking process, if the coding drive mechanism and the leveling device 2 collide, the coding drive mechanism will slide and compress the buffer spring 15 to buffer the impact kinetic energy. After the inkjet printing is completed, the positioning cylinder 144 drives the positioning rod 143 to disengage from the blocking block 221, and the locking cylinder 142 drives the locking pin to exit the locking hole 222 to release the locking of the inkjet printing drive mechanism and the leveling device 2. The follower slide bar 12 retracts to drive the inkjet terminal 11 to reset, and the leveling suction cup 21 releases the packaging bag 6 and resets under the drive of the translation cylinder 24, the lifting cylinder 22, the follower device 3 and the reset spring 252; After the coding is completed, the packaging bag 6 is transported by the main conveyor line 5 into the leveling device 4. The driving motor drives the rotating cam 41 to rotate. The rotating cam 41 contacts the vibration plate 42 to drive the vibration plate 42 to vibrate up and down. The vibration plate 42 pushes the conveyor belt 51 to vibrate up and down. At the same time, each eccentric pressure roller 43 rotates eccentrically to slap the upper surface of the packaging bag 6. The packaging bag 6 is restored to flatness through the joint action of the vibration plate 42 and the eccentric pressure roller 43.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. The coding equipment includes a main conveying line and a coding device. The main conveying line is used to convey packaging bags, and is characterized in that: It also includes a flattening device for flattening the area to be coded on the packaging bag and a follower device for driving the flattening device to move synchronously with the packaging bag; The leveling device includes: Flattening suction cups, with multiple ones; A lifting mechanism is used to drive the leveling suction cup to rise or fall; A translation mechanism, used for driving the leveling suction cup to translate; The leveling device moves synchronously with the packaging bag under the drive of the follower device, and the lifting mechanism drives the leveling suction cup to move downward to contact the packaging bag. After the leveling suction cup sucks the packaging bag tightly, the translation mechanism drives each leveling suction cup to move around relative to the area to be coded, so as to level the area to be coded; The area to be coded is coded when it passes through the coding device. After the coding is completed, the suction cup is flattened to release the packaging bag and reset under the drive of the translation mechanism, lifting mechanism and follow-up device.

2. The coding device according to claim 1, characterized in that: The leveling device also includes: A turning mechanism, which can drive the flattening suction cup to turn outward and reset inward relative to the coding area; After the leveling suction cup tightly sucks the area to be coded, the lifting mechanism drives the leveling suction cup to rise a preset distance, and the translation mechanism drives the leveling suction cup to move inwardly a preset distance relative to the area to be coded. While the leveling suction cup moves inwardly, the flipping mechanism drives the leveling suction cup to flip outwardly a preset angle, so that the leveling suction cup and the area to be coded are bent. After the bend is formed, the translation mechanism drives the leveling suction cup to move outwardly relative to the area to be coded, so that the area to be coded is leveled.

3. The coding device according to claim 1, characterized in that: There are multiple leveling devices, and the follower device includes an annular synchronous conveyor belt. Each leveling device is installed on the synchronous conveyor belt, and the synchronous conveyor belt drives each leveling device to rotate in an annular manner so that the leveling device and the packaging bag move or reset synchronously.

4. The coding device according to claim 2, characterized in that: Also included is a leveling device, which includes: The vibration mechanism includes a driving motor, a rotating cam and a vibration plate, wherein the vibration plate is located below the conveyor belt of the main conveyor line to lift up the conveyor belt, the driving motor is used to drive the rotating cam to rotate, and the rotating cam contacts the vibration plate to drive the vibration plate to vibrate up and down; A flattening mechanism, comprising a plurality of eccentric pressing rollers capable of eccentric rotation, the eccentric pressing rollers being located above the conveyor belt of the main conveying line so as to contact the upper surface of the packaging bag; After the packaging bag is coded, it is transported by the main conveyor line into the leveling device. The vibration plate is driven by the drive motor and the rotating cam to vibrate up and down, pushing the conveyor belt of the main conveyor line to vibrate up and down. The eccentric pressure roller rotates eccentrically and beats the upper surface of the packaging bag, so that the packaging bag is restored to flatness under the action of the vibration plate and the eccentric pressure roller.

5. The coding device according to claim 1, characterized in that: The inkjet device includes: Spray terminal, used to spray code on packaging bags; The inkjet printer drive mechanism is connected to the inkjet printer terminal, including a locking assembly; A follower slide bar, which is connected to the inkjet printer drive mechanism and can slide and retract; When the leveling device passes through the inkjet device, the locking assembly locks the leveling device, and the follower slide bar is driven out by the leveling device to make the inkjet drive mechanism move synchronously with the leveling device. The inkjet drive mechanism drives the inkjet terminal to move horizontally relative to the area to be inkjet printed on the packaging bag to complete the inkjet printing. After the inkjet printing is completed, the locking assembly releases the leveling device, and the follower slide bar retracts to drive the inkjet terminal to reset.

6. The coding device according to claim 5, characterized in that: The inkjet drive mechanism is slidably connected to the follower slide bar, and the inkjet device also includes: A buffer spring, which is respectively connected to the inkjet drive mechanism and the follower slide rod; When the locking assembly locks the leveling device, the inkjet drive mechanism is impacted by the leveling device and slides to compress the buffer spring, so that the kinetic energy generated by the impact is absorbed by the buffer spring.

7. The coding device according to claim 5, characterized in that: The leveling device is provided with a blocking block and a locking hole, and the inkjet drive mechanism also includes: A driving screw rod is rotatably connected to the inkjet printer to drive the inkjet printer to move horizontally for inkjet printing; The locking assembly includes: A locking pin, which can be inserted into the locking hole to lock the leveling device and the inkjet drive mechanism; A locking cylinder connected to the locking bayonet to drive the locking bayonet to insert into or withdraw from the locking hole; A positioning rod, which can be engaged with the blocking block so that the locking pin is aligned with the locking hole; A positioning cylinder connected to the positioning rod to drive the positioning rod to engage with or disengage from the blocking block; When the leveling device passes through the inkjet device, the positioning cylinder drives the positioning rod to extend so that the positioning rod is engaged with the blocking block and the locking pin is aligned with the locking hole; The locking cylinder drives the locking pin to be inserted into the locking hole to lock the leveling device, so that the inkjet drive mechanism and the leveling device move synchronously; The driving screw drives the inkjet terminal to move horizontally relative to the area to be inkjet printed on the packaging bag to complete the inkjet printing. After the inkjet printing is completed, the positioning cylinder drives the positioning rod to disengage from the blocking block, and the locking cylinder drives the locking pin to exit the locking hole to release the lock of the inkjet printing drive mechanism and the leveling device.

8. The coding device according to claim 2, characterized in that: The flip mechanism includes: A flip guide block is installed on the translation mechanism, and the flip guide block is provided with an arc-shaped flip cavity, and the flip cavity is connected to an external air pump; A flip guide rod, whose shape corresponds to the flip cavity and is slidably connected in the flip cavity, is fixedly connected to the leveling suction cup to drive the leveling suction cup to flip; A reset spring is disposed in the flip cavity and connected to the flip guide rod to provide the flip guide rod with elastic force to reset and pop out of the flip cavity; When the external air pump draws air, negative pressure is generated in the flipping cavity to draw the flipping guide rod back into the flipping cavity, so that the leveling suction cup is driven to flip outward at a preset angle. After the leveling suction cup releases the surface to be coded, the external air pump stops pumping air, and the reset spring pushes the flipping guide rod to reset and pop out of the flipping cavity.

9. The coding device according to claim 1, characterized in that: The lifting mechanism includes: Lifting cylinder, used to drive the translation mechanism to rise or fall; A mounting plate, used for mounting the translation mechanism, which is fixedly connected to the lifting cylinder; The translation mechanism includes: There are a plurality of translation cylinders, which correspond one to one with the leveling suction cups, so that each leveling suction cup is driven to translate by the corresponding translation cylinder.

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