Printer assembly for container bags

Abstract

The utility model discloses a printing machine assembly for flexible freight bags, which belongs to the technical field of flexible freight bag printing and comprises a conveying belt suitable for conveying unwound flexible freight bags. The shell is arranged between one end and the other end of the conveying belt, the shell is provided with an operation space penetrating in the length direction, part of the conveying belt is located in the operation space, and a first area and a second area which are sequentially distributed in the length direction are arranged in the operation space; the printing device is arranged in the first area and provided with a printing part, and the printing part is suitable for printing the container bags passing through the first area; the cutting device is arranged in the second area and suitable for cutting off the container bags in the second area. According to the printing machine assembly designed by the utility model, the continuous automatic processing of the flexible freight bags from unwinding, printing to cutting is realized, the production efficiency is greatly improved, the dependence on manual operation is reduced, the labor cost is reduced, and meanwhile, the quality problem caused by human factors is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of printing of packing bag, and particularly relates to a printing machine assembly for packing bag. BACKGROUND

[0002] In the related art, printing and cutting are two independent and separate processes in the production process of packing bags. Generally, a special printing device is used to print patterns, characters or marks on the long strip of packing bag material after unwinding. After the printing process is completed, the materials are collected and transferred to another work area, where size cutting is performed by hand or a separately arranged cutting device to form the final product. The above production is not only time-consuming and labor-intensive, but also has extremely low work efficiency, which is difficult to meet the needs of large-scale production. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems in the prior art. To this end, one object of the utility model is to provide a printing machine assembly for packing bag.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] The utility model provides a printing machine assembly for packing bag, which comprises a conveying belt, a shell, a printing device and a cutting device. The conveying belt extends in the length direction and is suitable for conveying the unwound packing bag. The shell is arranged between one end and the other end of the conveying belt. The shell is provided with an operating space penetrating in the length direction. Part of the conveying belt is located in the operating space. The operating space is provided with a first area and a second area distributed in sequence in the length direction. The printing device is arranged in the first area and is provided with a printing part suitable for printing the packing bag passing through the first area. The cutting device is arranged in the second area and is suitable for cutting the packing bag in the second area.

[0006] The printing machine assembly for packing bag according to the utility model realizes continuous and automatic processing of the packing bag from unwinding, printing to cutting, greatly improves the production efficiency, reduces the dependence on manual operation, reduces the labor cost and also reduces the quality problems caused by human factors.

[0007] Further, the cutting device comprises a first cutting member connected with the housing, and a second cutting member movably connected with the housing, the second cutting member being adapted to move in the height direction, the first cutting member and the second cutting member cooperating to cut the bag; wherein the first cutting member is provided with a guide plate on the side facing the first area, the distance between the bottom of the guide plate and the top of the conveying belt is d, and 0.15mm≤d≤0.8mm is satisfied, and the height of the guide plate gradually decreases in the direction facing the first area.

[0008] Further, the cutting device further comprises a gear rotatably arranged in the operation space, and a rack extending in the height direction and connected with the second cutting member, the rack being engaged with the gear, and the gear being rotated to drive the rack to move in the height direction.

[0009] Further, the conveying belt comprises a conveying belt body and a plurality of rollers, the plurality of rollers being respectively engaged with the conveying belt, and the plurality of rollers being rotated to drive the conveying belt to move, and the cutting device further comprises a first synchronous wheel rotatably arranged in the operation space, the first synchronous wheel being coaxially arranged with the gear and spaced apart in the width direction, a synchronous belt having one end engaged with the first synchronous wheel, and one of the rollers being coaxially provided with a second synchronous wheel, the other end of the synchronous belt being engaged with the second synchronous wheel, and an engaging sleeve movably arranged in the operation space, one end of the engaging sleeve being engaged with the gear, and the engaging sleeve being adapted to move in the width direction to selectively allow the other end of the engaging sleeve to contact the first synchronous wheel.

[0010] Further, the cutting device further comprises an operation rod, one end of the operation rod being located in the operation space and rotatably connected with the engaging sleeve, and the other end of the operation rod being located outside the operation space and provided with an operation handle.

[0011] Further, the gear is rotatably arranged in the operation space through a rotating shaft, and the cutting device further comprises a torsional spring sleeved on the rotating shaft, one end of the torsional spring being connected with the gear, and the other end of the torsional spring being connected with the rotating shaft, the torsional spring being adapted to drive the gear to rotate, so that the rack moves away from the conveying belt body.

[0012] Further, the cutting device further comprises a spring, one end of the spring being connected with the housing, and the other end of the spring being connected with the rack, the spring being adapted to drive the rack to move away from the conveying belt body.

[0013] Further, the drying device is arranged in the operation space and located between the first area and the second area, and is adapted to blow hot air towards the first area and / or the second area to dry the bag.

[0014] Other advantages, objects, and features of the present application will be apparent to those skilled in the art from the following specification. The objects and other advantages of the present application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to make the purpose, technical scheme and beneficial effects of the present application more clear, the present application provides the following drawings for illustration:

[0016] Fig. 1 It is a schematic view of the cooperation of the conveying belt and the cutting device of the present application;

[0017] Fig. 2 It is a schematic view of the cooperation of the gear, the engaging sleeve and the first synchronous wheel of the present application;

[0018] Fig. 3 It is a partial schematic view of the conveying belt and the cutting device of the present application.

[0019] The symbols in the drawings are as follows:

[0020] 11, conveying belt body; 12, roller; 13, second synchronous wheel;

[0021] 21, first cutting member; 211, guide plate; 22, second cutting member; 23, gear; 24, rack; 25, first synchronous wheel; 26, synchronous belt; 27, engaging sleeve. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and beneficial effects of the present application more clear, the present application provides the following drawings for illustration:

[0023] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without these specific details. In other instances, well-known structures, circuits, materials or methods have not been described in detail in order to avoid obscuring the present application.

[0024] Reference throughout this specification to "one embodiment", "an embodiment", "one example", or "an example", means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the application. The appearances of the phrases "in one embodiment" or "an embodiment" or "in one example" or "an example" in various places in the specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics can be combined in any suitable

[0025] In the description of the present application, it is to be understood that the terms "front", "back", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", and the like, indicate the orientation or position as shown in the drawings, and are for convenience only in describing the present application and the principal direction of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the application.

[0026] Embodiment one:

[0027] As shown in Figs. 1-3 The present application provides a printing machine assembly for a flexible container, comprising: a conveying belt, a housing, a printing device and a cutting device, the conveying belt extends in the length direction and is suitable for conveying the flexible container after unwinding, the housing is arranged between one end and the other end of the conveying belt, the housing is provided with an operating space penetrating in the length direction, part of the conveying belt is located in the operating space, the operating space is provided with a first area and a second area distributed in sequence in the length direction, the printing device is arranged in the first area and is provided with a printing part, the printing part is suitable for printing the flexible container passing through the first area, and the cutting device is arranged in the second area, and the cutting device is suitable for cutting the flexible container in the second area.

[0028] In some embodiments, the printing machine assembly has a conveying belt extending in the length direction, the conveying belt is used for continuously conveying the flexible container after unwinding, a housing is arranged between one end and the other end of the conveying belt, the housing is provided with an operating space penetrating therein, part of the conveying belt is located in the operating space, the operating space is divided into a first area and a second area in sequence in the length direction, a printing device is arranged in the first area, the printing device comprises a printing part, the printing part can perform printing operation on the flexible container passing through the first area, and a cutting device is arranged in the second area, and the cutting device can perform cutting treatment on the flexible container passing through the second area.

[0029] It can be understood that the bag is placed on the conveying belt after being unwound, and the bag enters the operation space in the shell along with the movement of the conveying belt, and in the first area, the printing device performs the required printing work on the surface of the bag; then, the bag continues to advance along the conveying belt to the second area, and in the second area, the cutting device cuts the long strip-shaped bag according to the set requirements, and the whole processing process is completed. Thus, it is possible to avoid setting a cutting personnel to cut the bag, thereby reducing labor costs.

[0030] According to the printing machine assembly for the bag, continuous automatic processing of the bag from unwinding, printing to cutting is realized, production efficiency is greatly improved, and dependence on manual operation is reduced, thereby reducing labor costs and quality problems caused by human factors.

[0031] Embodiment two:

[0032] In this embodiment, the cutting device includes a first cutting element 21 and a second cutting element 22, the first cutting element 21 is connected with the shell, the second cutting element 22 is movably connected with the shell, the second cutting element 22 is adapted to move in the height direction, and the first cutting element 21 and the second cutting element 22 cooperate to cut the bag; wherein the first cutting element 21 is provided with a guide plate 211 on the side facing the first area, the distance between the bottom of the guide plate 211 and the top of the conveying belt is d, and satisfies: 0.15mm≤d≤0.8mm, and the height of the guide plate 211 gradually decreases in the direction facing the first area.

[0033] In some embodiments, the first cutting element 21 is fixedly connected with the shell, the second cutting element 22 is connected with the shell through a movable connection mode, the second cutting element 22 can move in the height direction, the first cutting element 21 and the second cutting element 22 cooperate to complete the cutting operation of the bag, the distance d between the bottom of the guide plate 211 and the top of the conveying belt satisfies 0.15mm≤d≤0.8mm, and the height of the guide plate 211 gradually decreases in the direction facing the first area.

[0034] It can be understood that the second cutting element 22 can move up and down in the height direction, when it is necessary to cut the bag, the second cutting element 22 moves downward and cooperates with the fixed first cutting element 21, thereby cutting off the passing bag material.

[0035] It is worth mentioning that the design of the guide plate 211 is to ensure that the bag can smoothly enter the cutting area, and 0.15mm≤d≤0.8mm can avoid the bag passing between the guide plate 211 and the conveying belt, while ensuring that the guide plate 211 will not affect the work of the conveying belt. The height of the guide plate 211 gradually decreases in the direction towards the first area, so as to guide the bag, so that the bag can smoothly pass through the top of the guide plate 211, so that the bag can pass between the first cutting element 21 and the second cutting element 22.

[0036] In operation, after the bag is conveyed to the guide plate 211, the guide plate 211 can guide the bag to pass through the top of the guide plate 211 (the second cutting element 22 and the first cutting element 21 cooperate to cut the bag by shearing force, and when the second cutting element 22 and the first cutting element 21 cooperate to cut the bag, the projections of the second cutting element 22 and the first cutting element 21 in the length direction at least partially overlap, thereby avoiding the second cutting element 22 from contacting the conveying belt, thereby avoiding damage to the conveying belt).

[0037] Embodiment three:

[0038] In this embodiment, on the basis of embodiment two, the cutting device further comprises a gear 23 and a rack 24, the gear 23 is rotatably arranged in the operation space, the rack 24 extends in the height direction and is connected with the second cutting element 22, the rack 24 is engaged with the gear 23, and the gear 23 rotates to drive the rack 24 to move in the height direction.

[0039] In some embodiments, the gear 23 is installed inside the operation space, the gear 23 can be rotated by a motor or other driving mode, the rack 24 is engaged with the gear 23, and with the rotation of the gear 23, the rack 24 moves up and down along the height direction (perpendicular to the direction of the conveying belt). Since the rack 24 is connected with the second cutting element 22, when the rack 24 moves up or down, it will drive the second cutting element 22 to move synchronously. When cutting is needed, the gear 23 rotates to drive the rack 24 to move the second cutting element 22 downward until it contacts the first cutting element 21 and completes the cutting action of the bag; after cutting is completed, the gear 23 reversely rotates to reset the second cutting element 22.

[0040] According to some embodiments of the present application, the conveying belt comprises a conveying belt body 11 and a plurality of rollers 12, the plurality of rollers 12 are respectively matched with the conveying belt, and the plurality of rollers 12 rotate to drive the conveying belt to move, and the cutting device further comprises: a first synchronous wheel 25, a synchronous belt 26 and an engaging sleeve 27, the first synchronous wheel 25 is rotatably arranged in the operation space, the first synchronous wheel 25 is coaxially arranged with the gear 23 and is spaced apart in the width direction, one end of the synchronous belt 26 is matched with the first synchronous wheel 25, one of the rollers 12 is coaxially arranged with a second synchronous wheel 13, the other end of the synchronous belt 26 is matched with the second synchronous wheel 13, and the engaging sleeve 27 is movably arranged in the operation space, one end of the engaging sleeve 27 is matched with the gear 23, and the engaging sleeve 27 is adapted to move in the width direction to selectively make the other end of the engaging sleeve 27 contact the first synchronous wheel 25.

[0041] In some embodiments, the conveying belt comprises a conveying belt body 11 and a plurality of rollers 12, the plurality of rollers 12 are respectively matched with the conveying belt and drive the conveying belt to move by rotating, the first synchronous wheel 25 is rotatably arranged in the operation space and is coaxially arranged with the gear 23 but is spaced apart in the width direction, one end of the synchronous belt 26 is matched with the first synchronous wheel 25, the other end of the synchronous belt 26 is matched with the second synchronous wheel 13, the second synchronous wheel 13 is coaxially arranged on one of the rollers 12, the engaging sleeve 27 is movably arranged in the operation space, one end of the engaging sleeve 27 is matched with the gear 23, and the engaging sleeve 27 can move in the width direction to selectively make the other end of the engaging sleeve 27 contact or be separated from the first synchronous wheel 25.

[0042] It can be understood that when cutting is needed, the engaging sleeve 27 moves and contacts the first synchronous wheel 25, so that the first synchronous wheel 25 (coaxial with the gear 23) is connected with the second synchronous wheel 13 (arranged on a certain roller 12) through the synchronous belt 26. In this way, when the roller 12 rotates, the gear 23 can be driven to rotate through the synchronous belt 26, and then the rack 24 and the second cutting element 22 are driven to move downward to complete the cutting action.

[0043] Therefore, the design of the engaging sleeve 27 allows flexible selection of whether the cutting device participates in work according to actual needs, increases the adaptability and flexibility of the printing machine assembly, and through the synchronous mechanism, it can be ensured that each cutting is performed at the best time, greatly improving the precision and consistency of the cutting.

[0044] According to some embodiments of the present application, the cutting device further comprises: an operating rod, one end of the operating rod is located in the operation space and is rotatably connected with the engaging sleeve 27, and the other end of the operating rod is located outside the operation space and is provided with an operating handle.

[0045] In some embodiments, the operator can control the operating rod through an operating handle located outside the operating space. Since one end of the operating rod is rotationally connected to the engaging sleeve 27, when the operator moves the operating handle, the engaging sleeve 27 will be moved in the width direction through the operating rod, so as to make the engaging sleeve 27 selectively contact or disengage from the first synchronous wheel 25.

[0046] It can be understood that the operator can intuitively and accurately control the working state (i.e., whether to participate in work) of the cutting device through the physical mechanical linkage to adapt to different production needs. Moreover, since the intuitive manual operation mode is adopted, it is more convenient to maintain or debug, without the support of a complex electronic control system. Of course, manual operation allows the operator to immediately interrupt the cutting process when necessary, which helps to avoid potential safety risks or material waste.

[0047] Embodiment Four:

[0048] In this embodiment, the gear 23 is rotationally arranged in the operating space through a rotating shaft. The cutting device further comprises a torsional spring, which is sleeved on the rotating shaft. One end of the torsional spring is connected to the gear 23, and the other end of the torsional spring is connected to the rotating shaft. The torsional spring is adapted to drive the gear 23 to rotate, so as to move the rack 24 away from the conveyor belt body 11.

[0049] It can be understood that when cutting is needed, the gear 23 rotates reversely to drive the rack 24 to move downward, so that the second cutting element 22 approaches the first cutting element 21 to complete the cutting. Once the cutting action is completed, the engaging sleeve 27 immediately releases the contact with the first synchronous wheel 25. At this time, the torsional spring will exert a torque on the gear 23 to promote the gear 23 to rotate reversely, thereby driving the rack 24 to move upward, so that the second cutting element 22 moves away from the conveyor belt body 11 and returns to the initial position, waiting for the next cutting instruction.

[0050] Specifically, one end of the torsional spring is fixed on the rotating shaft, and the other end of the torsional spring is connected to the gear 23. The elastic potential energy of the torsional spring is converted into kinetic energy to drive the gear 23 to rotate, thereby realizing the above-mentioned reset process.

[0051] In other embodiments, the cutting device further comprises a spring, one end of the spring is connected to the housing, and the other end of the spring is connected to the rack 24. The spring is adapted to drive the rack 24 to move away from the conveyor belt body 11.

[0052] It can be understood that when cutting is required, the gear 23 rotates to drive the rack 24 to move downward, so that the second cutting element 22 approaches the first cutting element 21 to complete the cutting. After the cutting is completed, the engagement sleeve 27 is out of contact with the first synchronous wheel 25, the gear 23 stops applying downward force, at this time the spring starts to work, since one end of the spring is fixed on the shell and the other end of the spring is connected to the rack 24, thus the spring will exert an upward pulling force (or pushing force) to pull the rack 24 upward, so that the second cutting element 22 moves away from the conveyor belt body 11 and returns to the initial position.

[0053] Therefore, through the elastic force provided by the spring, it is ensured that the rack 24 can be smoothly reset even without an external power source, and the need for other complex mechanical structures or additional energy sources is reduced.

[0054] According to some embodiments of the present application, the printing machine assembly further comprises: a drying device, the drying device is arranged in the operation space and located between the first area and the second area, and the drying device is adapted to blow hot air towards the first area and / or the second area to dry the flexitank.

[0055] In some embodiments, the drying device is placed between the first area and the second area, just in the path after printing is completed and before cutting, to maximize the use of existing space, while ensuring that the printed flexitank can be dried in the shortest time. Specifically, the drying device blows hot air to the surface of the flexitank to increase the temperature of the ink layer and speed up the evaporation speed of the solvent, thereby achieving the effect of rapid drying. Of course, the temperature and flow rate of the hot air can be adjusted according to actual needs to adapt to different types of ink and materials.

[0056] It can be understood that by quickly drying the printing ink, the waiting time is reduced, making the entire production process more smooth and efficient, and it can be ensured that the printed pattern is completely dry before cutting, preventing problems such as ink blurring and sticking, and improving the quality of the final product.

[0057] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and detail without departing from the scope defined by the claims of the present application.

Claims

1. A printing press assembly for a flexitank, characterized by, The application relates to a bag cutting device. The bag cutting device comprises: a conveying belt extending in a length direction and adapted to convey the bags after unwinding; a housing arranged between one end and the other end of the conveying belt, the housing being provided with an operation space through in the length direction, and the conveying belt being partially located in the operation space, and the operation space being provided with a first area and a second area arranged in sequence in the length direction; a printing device arranged in the first area and provided with a printing part adapted to print the bags passing through the first area; 2. The printing press assembly for a flexitank according to claim 1, wherein, a cutting device arranged in the second area and adapted to cut the bags in the second area. The cutting device comprises: a first cutting member connected with the housing; a second cutting member movably connected with the housing, the second cutting member being adapted to move in a height direction, and the first cutting member and the second cutting member cooperating to cut the bags; wherein 3. The printing press assembly for a flexitank according to claim 2, wherein, a guide plate is arranged on one side of the first cutting member facing the first area, and the distance between the bottom of the guide plate and the top of the conveying belt is d, and 0.15mm<=d<=0.8mm is satisfied, and the height of the guide plate gradually decreases in the direction facing the first area. The cutting device further comprises: a gear rotatably arranged in the operation space; 4. The printing press assembly for a flexitank according to claim 3, wherein, a rack extending in the height direction and connected with the second cutting member, the rack being engaged with the gear, and the gear being rotated to drive the rack to move in the height direction. The conveying belt comprises a conveying belt body and a plurality of rollers, the plurality of rollers are respectively matched with the conveying belt, and the plurality of rollers are rotated to drive the conveying belt to move, and the cutting device further comprises: a first synchronous wheel rotatably arranged in the operation space, the first synchronous wheel being coaxially arranged with the gear and being spaced apart in a width direction; a synchronous belt, one end of the synchronous belt being matched with the first synchronous wheel, and one of the rollers being coaxially arranged with a second synchronous wheel, and the other end of the synchronous belt being matched with the second synchronous wheel; 5. The printing press assembly for a flexitank according to claim 4, wherein, an engaging sleeve movably arranged in the operation space, one end of the engaging sleeve being matched with the gear, and the engaging sleeve being adapted to move in the width direction to selectively make the other end of the engaging sleeve contact the first synchronous wheel. The cutting device further comprises:

6. The printing press assembly for a flexitank according to claim 4, wherein, an operating rod, one end of the operating rod being located in the operation space and being rotatably connected with the engaging sleeve, and the other end of the operating rod being located outside the operation space and being provided with an operating handle. The gear is rotatably arranged in the operation space through a rotating shaft, and the cutting device further comprises:

7. The printing press assembly for a flexi-bag according to claim 5, wherein, a torsional spring sleeved on the rotating shaft, one end of the torsional spring being connected with the gear, and the other end of the torsional spring being connected with the rotating shaft, and the torsional spring being adapted to drive the gear to rotate, so that the rack moves away from the conveying belt body. The cutting device further comprises:

8. The printing press assembly for a flexitank according to claim 1, wherein, a spring, one end of the spring being connected with the housing, and the other end of the spring being connected with the rack, and the spring being adapted to drive the rack to move away from the conveying belt body. The application further relates to a bag cutting device. A drying device is provided within the operating space and between the first and second zones, the drying device being adapted to blow hot air towards the first and / or second zone to dry the totes.

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