Double-layer intermittent feeding device of printing machine

Abstract

The utility model belongs to the field of printing equipment, and provides a printing machine double-layer intermittent feeding device which comprises a traction roller set, a fixed guide roller set, a movable roller set and a driving mechanism. The traction roller set comprises a front traction roller and a rear traction roller which are arranged in the first direction in a spaced mode. The fixed guide roller set is arranged between the front traction roller and the rear traction roller in the first direction, the fixed guide roller set comprises a front fixed guide roller and a rear fixed guide roller which are arranged in the first direction in a spaced mode, and a target printing station is preset between the front fixed guide roller and the rear fixed guide roller; the movable roller set is located between the front fixed guide roller and the rear fixed guide roller in the first direction and arranged at an interval with the target printing station in the second direction, the second direction is perpendicular to the first direction, and the movable roller set comprises a front movable roller and a rear movable roller which are arranged at an interval in the first direction; the driving mechanism is in transmission connection with the front movable roller and the rear movable roller.

Description

Technical Field

[0001] This application belongs to the field of printing equipment, and in particular relates to a double-layer intermittent feeding device for a printing press. Background Technology

[0002] In conventional printing equipment operation, after printing a pattern or document, the printing rollers of the printing unit must move past the blank area at the junction of the printing plate's ends to return to their initial position before the next printing operation can begin. During this reset process, if the tape conveyor system continues to feed, the length of the unused blank area between the printed pattern and the pattern to be printed will significantly increase. This not only causes unnecessary waste of tape material but also limits the realization of high-precision continuous printing. If the tape conveyor system frequently pauses feeding to accommodate the reset of the printing units, the printing efficiency of the printing press will be significantly reduced. Therefore, it is necessary to solve the above-mentioned technical problems. Utility Model Content

[0003] The purpose of this application is to provide a double-layer intermittent feeding device for a printing press to solve the technical problem of poor flexibility in the conveying of strip materials in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a double-layer intermittent feeding device for a printing press, comprising:

[0005] The traction roller assembly includes a front traction roller and a rear traction roller spaced apart in a first direction;

[0006] A set of fixed guide rollers is disposed between the front traction roller and the rear traction roller along the first direction. The set of fixed guide rollers includes a front fixed guide roller and a rear fixed guide roller that are spaced apart along the first direction. The area between the front fixed guide roller and the rear fixed guide roller is preset as a target printing station.

[0007] The movable roller group is located between the front fixed guide roller and the rear fixed guide roller in the first direction and spaced apart from the target printing station in the second direction, the second direction being perpendicular to the first direction. The movable roller group includes a front movable roller and a rear movable roller spaced apart along the first direction. The front fixed guide roller and the rear fixed guide roller of the fixed guide roller group are arranged in at least four pairs along the second direction, wherein at least one pair of the front fixed guide roller and the rear fixed guide roller located on both sides of the target printing station is used to allow the strip to pass through the target printing station.

[0008] The drive mechanism is connected to the front movable roller and the rear movable roller respectively and is used to drive the front movable roller and the rear movable roller to move synchronously in the first direction.

[0009] Optionally, at least two sets of movable rollers are spaced apart in the second direction, and at least three sets of fixed guide rollers are spaced apart in the second direction corresponding to the movable rollers.

[0010] Optionally, the drive mechanism includes a sliding seat capable of moving in the first direction;

[0011] The movable roller assembly is mounted on the sliding seat.

[0012] Optionally, the drive mechanism includes a base plate and a servo motor and a support plate spaced apart on the base plate, and also includes a drive wheel connected to the power end of the servo motor, a driven wheel rotatably connected to the support plate, and a synchronous belt connecting the drive wheel and the driven wheel;

[0013] The timing belt runs in the first direction and is connected to the sliding seat.

[0014] Optionally, the drive mechanism further includes a stand connected to the base plate;

[0015] The sliding seat is slidably connected to the upright seat and forms a gap between it and the base plate for the synchronous belt to pass through.

[0016] Optionally, the drive mechanism further includes a linear guide extending along the first direction;

[0017] The linear guide is connected to the stand and slidably connected to the sliding seat.

[0018] Optionally, the drive mechanism further includes a bearing housing connected to the servo motor and a bearing connected to the bearing housing;

[0019] The bearing is coaxially connected to the output shaft of the servo motor.

[0020] Optionally, the bearing body is provided with a through hole for the timing belt to pass through.

[0021] The beneficial effects of the printing press double-layer intermittent feeding device provided in this application are as follows: Compared with the prior art, in the printing press double-layer intermittent feeding device provided in this application, since the movable roller group that is spaced apart from the target printing station in the second direction is located between the front fixed guide roller and the rear fixed guide roller in the first direction, and since the drive mechanism that is respectively connected to the front movable roller and the rear movable roller can drive the front movable roller and the rear movable roller to move synchronously in the first direction. Therefore, after the target printing station completes a single printing task, the front movable roller and the rear movable roller can simultaneously move away from the front fixed guide roller and gradually move closer to the rear fixed guide roller in the first direction. This allows the strip material traction and conveyed by the front traction roller to be continuously stored between the front fixed guide roller and the front movable roller, while the strip material between the rear fixed guide roller and the rear movable roller can continue to be conveyed by the rear traction roller. This enables the strip material between the front and rear fixed guide rollers to achieve relative stillness and adapt to the resetting process of the printing station. After the printing station is reset, the front movable roller and the rear movable roller can again simultaneously move closer to the front fixed guide roller and gradually move away from the rear fixed guide roller in the first direction. At this time, the strip material between the front fixed guide roller and the front movable roller is released, allowing the strip material to pass through the target printing station at a set speed for printing. The increased distance between the synchronously moving rear fixed guide roller and the rear movable roller enables dynamic storage of the printed strip material, ensuring that the rear traction roller maintains uniform traction. This adjustment process is repeated to achieve high-efficiency printing operations. Therefore, the double-layer intermittent feeding device for printing presses provided in this application can achieve flexible strip material conveying effects, far superior to existing technologies. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the feeding principle of the double-layer intermittent feeding device for the printing press in the embodiments of this application;

[0024] Figure 2 This is a partial three-dimensional view of the double-layer intermittent feeding device for a printing press in an embodiment of this application.

[0025] In the figure, the following labels are used: 101, front traction roller; 102, rear traction roller; 201, front fixed guide roller; 202, rear fixed guide roller; 301, front movable roller; 302, rear movable roller; 401, sliding seat; 402, base plate; 403, servo motor; 404, support seat; 405, driving wheel; 406, driven wheel; 407, synchronous belt; 408, stand; 409, linear guide; 410, bearing body; 411, bearing; 412, perforation; 500, target printing station. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0028] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0030] Please refer to the following: Figure 1 and Figure 2 This application now describes a double-layer intermittent feeding device for a printing press, based on an embodiment. The device includes a traction roller group, a fixed guide roller group, a movable roller group, and a drive mechanism. Wherein:

[0031] The traction roller assembly includes a front traction roller 101 and a rear traction roller 102 spaced apart in a first direction; the fixed guide roller assembly is disposed between the front traction roller 101 and the rear traction roller 102 along the first direction, and includes a front fixed guide roller 201 and a rear fixed guide roller 202 spaced apart in the first direction, with the target printing station 500 pre-defined between the front fixed guide roller 201 and the rear fixed guide roller 202; the movable roller assembly is located between the front fixed guide roller 201 and the rear fixed guide roller 202 in the first direction and spaced apart from the target printing station 500 in a second direction, the second direction being perpendicular to... Perpendicular to the first direction, the movable roller group includes a front movable roller 301 and a rear movable roller 302 spaced apart along the first direction. The fixed guide roller group has at least four pairs of front and rear fixed guide rollers 201 and 202 paired along the second direction, with at least one pair of front and rear fixed guide rollers 201 and 202 located on both sides of the target printing station 500 for guiding the strip material through the target printing station 500. The drive mechanism is respectively connected to the front and rear movable rollers 301 and 302 and is used to drive the front and rear movable rollers 301 and 302 to move synchronously in the first direction. It can be understood that in this embodiment, the front traction roller 101, rear traction roller 102, front fixed guide roller 201, rear fixed guide roller 202, front movable roller 301, and rear movable roller 302 need to be arranged parallel to each other during implementation to ensure the normal operation of the feeding process. For ease of explanation, in this embodiment, the first direction and the second direction are respectively referred to as... Figure 1 The explanation will be based on the x and y directions.

[0032] According to the structure provided in this embodiment, in the double-layer intermittent feeding device for printing presses provided in this embodiment, since the movable roller group, which is spaced apart from the target printing station 500 in the second direction, is located between the front fixed guide roller 201 and the rear fixed guide roller 202 in the first direction, and since the drive mechanism, which is respectively connected to the front movable roller 301 and the rear movable roller 302, can drive the front movable roller 301 and the rear movable roller 302 to move synchronously in the first direction, after the target printing station 500 completes a single printing task, the front movable roller 301 and the rear movable roller 302 can synchronously move away from the front fixed guide roller 201 and gradually move closer to the rear fixed guide roller 202 in the first direction. In this way, the strip material traction and conveyed by the front traction roller 101 can be continuously stored between the front fixed guide roller 201 and the front movable roller 301, while the strip material between the rear fixed guide roller 202 and the rear movable roller 302 can continue to be conveyed by the rear traction roller 102. This enables the strip material between the front fixed guide roller 201 and the rear fixed roller 202 to achieve relative stillness and adapt to the reset process of the printing station. After the printing station resets, the front movable roller 301 and the rear movable roller 302 can synchronously approach the front fixed guide roller 201 and gradually move away from the rear fixed guide roller 202 in the first direction. At this time, the strip between the front fixed guide roller 201 and the front movable roller 301 is released, so the strip can pass through the target printing station 500 for printing at a set speed. The increased distance between the synchronously moving rear fixed guide roller 202 and the rear movable roller 302 enables dynamic storage of the printed strip, so that the rear traction roller 102 maintains uniform traction. This adjustment process is repeated to achieve high-efficiency printing. Therefore, the double-layer intermittent feeding device for printing presses provided in this embodiment can achieve flexible strip conveying effect, which is far superior to the prior art.

[0033] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 At least two sets of movable rollers are spaced apart in the second direction, and at least three sets of fixed guide rollers are correspondingly arranged in the second direction. According to the structure provided in this embodiment, the at least two sets of movable rollers in the second direction can work in conjunction with the at least three sets of fixed guide rollers to dynamically store more strip material. This allows the strip material between the front fixed guide roller 201 and the rear fixed guide roller 202, especially in the area of ​​the target printing station 500, to maintain a longer relative stationary time. This further improves the strip material conveying flexibility of the double-layer intermittent feeding device of the printing press in this embodiment. It can be understood that the target printing station 500 can be equipped with existing printing color units.

[0034] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2The drive mechanism includes a sliding seat 401 that can move in a first direction; a set of movable rollers is disposed on the sliding seat 401. According to the structure provided in this embodiment, the front movable roller 301 and the rear movable roller 302 disposed on the same sliding seat 401 can form a better synchronous movement effect, which is beneficial to further improve the strip conveying flexibility of the printing press double-layer intermittent feeding device in this embodiment.

[0035] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The driving mechanism includes a base plate 402, a servo motor 403 and a support 404 spaced apart on the base plate 402, a drive wheel 405 connected to the power end of the servo motor 403, a driven wheel 406 rotatably connected to the support 404, and a synchronous belt 407 connecting the drive wheel 405 and the driven wheel 406; the synchronous belt 407 runs in a first direction and is connected to the sliding seat 401. According to the structure provided in this embodiment, the drive wheel 405 connected to the servo motor 403 can cooperate with the driven wheel 406 connected to the support 404 and the synchronous belt 407 connecting the drive wheel 405 and the driven wheel 406 to stably drive the sliding seat 401 to move in the first direction, which is beneficial to further improve the flexibility and stability of the strip conveying of the double-layer intermittent feeding device of the printing press in this embodiment.

[0036] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The drive mechanism also includes a stand 408 connected to the base plate 402; a sliding seat 401 is slidably connected to the stand 408 and forms a gap between it and the base plate 402 for the synchronous belt 407 to pass through. According to the structure provided in this embodiment, the gap formed between the stand 408 and the base plate 402 facilitates the passage of the synchronous belt 407, which effectively avoids mechanical motion interference between the synchronous belt 407 and the sliding seat 401. It also facilitates the fixed connection of the sliding seat 401 to one side of the synchronous belt 407, which helps to further improve the flexibility of the tape conveying of the double-layer intermittent feeding device of the printing press in this embodiment, and also makes the feeding device more compact in structure.

[0037] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The drive mechanism also includes a linear guide 409 extending along the first direction; the linear guide 409 is connected to the stand 408 and slidably connected to the sliding seat 401. According to the structure provided in this embodiment, the linear guide 409 connected to the stand 408 can make the sliding seat 401 move more stably in the first direction, with high guiding accuracy and good operational reliability, which is beneficial to further improve the strip conveying flexibility of the double-layer intermittent feeding device of the printing press in this embodiment.

[0038] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The drive mechanism also includes a bearing body 410 connected to the servo motor 403 and a bearing 411 connected to the bearing body 410; the bearing 411 is coaxially connected to the output shaft of the servo motor 403. According to the structure provided in this embodiment, the bearing 411 connected to the bearing body 410 can be used to support the free end of the output shaft of the servo motor 403, which can make the servo motor 403 have a more stable power output effect, thereby also helping to further improve the strip conveying flexibility of the printing press double-layer intermittent feeding device in this embodiment.

[0039] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The bearing body 410 is provided with a through hole 412 for the synchronous belt 407 to pass through. According to the structure provided in this embodiment, the through hole 412 formed on the bearing body 410 can not only reduce the weight of the bearing body 410 and avoid the bearing body 410 interfering with the synchronous belt 407, but also make it easier for the operator to observe the operation of the synchronous belt 407. This is also conducive to further improving the flexibility of the tape conveying of the double-layer intermittent feeding device of the printing press in this embodiment.

[0040] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A double-layer intermittent feeding device for a printing press, characterized in that, The printing machine double-layer intermittent feeding device comprises: a traction roller set comprising front traction rollers (101) and rear traction rollers (102) arranged at intervals in a first direction; a guide roller set arranged between the front traction rollers (101) and the rear traction rollers (102) in the first direction, the guide roller set comprising front guide rollers (201) and rear guide rollers (202) arranged at intervals in the first direction, the front guide rollers (201) and the rear guide rollers (202) being preset as target printing stations (500); a movable roller set located between the front guide rollers (201) and the rear guide rollers (202) in the first direction and arranged at intervals with the target printing stations (500) in a second direction perpendicular to the first direction, the movable roller set comprising front movable rollers (301) and rear movable rollers (302) arranged at intervals in the first direction, the front guide rollers (201) and the rear guide rollers (202) of the guide roller set being arranged in at least four pairs in the second direction, at least one pair of the front guide rollers (201) and the rear guide rollers (202) being located on both sides of the target printing stations (500) to pass the strip through the target printing stations (500); a driving mechanism in driving connection with the front movable rollers (301) and the rear movable rollers (302) respectively and used for driving the front movable rollers (301) and the rear movable rollers (302) to move synchronously in the first direction.

2. The printing machine double-layer intermittent feeding device according to claim 1, wherein: the movable roller set is arranged in at least two groups in the second direction, and the guide roller set is arranged in at least three groups corresponding to the movable roller set in the second direction.

3. The printing machine double-layer intermittent feeding device according to claim 1 or 2, wherein: the driving mechanism comprises a sliding seat (401) capable of moving in the first direction; the movable roller set is arranged on the sliding seat (401).

4. The printing machine double-layer intermittent feeding device according to claim 3, wherein: the driving mechanism comprises a bottom plate (402), a servo motor (403) and a support seat (404) connected at intervals on the bottom plate (402), a driving wheel (405) connected to a power end of the servo motor (403), a driven wheel (406) rotatably connected to the support seat (404), and a synchronous belt (407) connecting the driving wheel (405) and the driven wheel (406); the synchronous belt (407) runs in the first direction and is connected with the sliding seat (401).

5. The printing machine double-layer intermittent feeding device according to claim 4, wherein: the driving mechanism further comprises a vertical seat (408) connected to the bottom plate (402); the sliding seat (401) is slidingly connected to the vertical seat (408) and forms an interval between the sliding seat (401) and the bottom plate (402) for the synchronous belt (407) to pass through.

6. The printing machine double-layer intermittent feeding device according to claim 5, wherein: The driving mechanism further comprises a wire rail (409) extending along the first direction; The wire rail (409) is connected to the stand (408) and is in sliding connection with the sliding seat (401).

7. The double-layer intermittent feeding device of the printing machine according to claim 6, characterized in that: The driving mechanism further comprises a bearing body (410) connected to the servo motor (403) and a bearing (411) connected to the bearing body (410); The bearing (411) is coaxially connected to the output shaft of the servo motor (403).

8. The double-layer intermittent feeding device of the printing machine according to claim 7, characterized in that: The bearing body (410) is provided with a through hole (412) for the synchronous belt (407) to pass through.

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