Paperboard aligning device of printing machine

Abstract

The utility model discloses a printing machine paperboard aligning device which comprises a machine frame, a conveying platform, a box pressing device and an aligning structure are arranged on the machine frame, the box pressing device comprises two box pressing rods which are arranged side by side, a lifting rod is arranged at the position, between two aligning plates, of each box pressing rod, and the aligning structure is arranged on the lifting rod. A plurality of box pressing wheels are arranged on the lifting rod and the box pressing rod in parallel, a supporting plate is arranged on the box pressing rod and located on the upper side of the lifting rod, a guide rod penetrating through the supporting plate is arranged on the lifting rod, and a lifting mechanism for driving the lifting rod to move up and down is arranged on the supporting plate. The lifting mechanism is arranged on the supporting plate, when the cartons are stacked and moved to the position between the two beating plates and the first driving device drives the beating plates to move, the lifting rod can be driven to rise through the lifting mechanism, downward pressing of the cartons can be omitted, friction force between the cartons is reduced, and resistance of the cartons to move inwards is reduced; therefore, the situation that the outer side of the carton is jacked and bent can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a cardboard aligning device for a printing machine. Background Art

[0002] After the printing machine prints cardboard sheets one by one, they are dried and sent out for stacking, and then sent to a packing machine for packing. The utility model patent with the publication number CN218594636U discloses a carton conveying and aligning device for a packing machine. After the cartons are stacked, they are conveyed on a conveying platform. Among them, a first carton pressing frame presses on the upper side of the cartons to improve the stability of the carton conveying. When the cartons pass through the first aligning device, a first driving device drives the first beaters to move towards each other to align the sides of the cartons. However, in actual use, if the left-right offset distance is large when the cartons are stacked, the distance that the cartons protrude to the left and right is also large, and the carton stack is pressed by the first carton pressing frame, and the friction between the cartons is also large. When the first beater pushes the protruding part of the carton inward, the resistance of the carton moving inward is large, and the outer side of the carton is prone to bending. Therefore, a method to avoid bending when aligning the cartons is needed. Content of the Utility Model

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a cardboard aligning device for a printing machine, so as to effectively solve the deficiencies existing in the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a cardboard aligning device for a printing machine, including a frame, on which a conveying platform, a carton pressing device and an aligning structure are arranged. The aligning structure includes two symmetrically arranged beaters and a first driving device for driving the two beaters to move towards each other. The carton pressing device includes two juxtaposed carton pressing rods. On the carton pressing rods, lifting rods are arranged at positions between the two beaters. A plurality of carton pressing wheels are arranged in parallel on both the lifting rods and the carton pressing rods. On the carton pressing rods, a support plate is arranged above the lifting rods. A guide rod passing through the support plate is arranged on the lifting rod. An elevating mechanism for driving the lifting rod to move up and down is arranged on the support plate.

[0005] Further, two guide rods are arranged on the lifting rod, and the upper ends of the two guide rods are connected by a connecting rod. The elevating mechanism includes struts hinged to each other. The movable ends of the two struts are respectively hinged to the connecting rod and the support plate. On the side of the support plate, a support frame is arranged. A push rod that can move left and right is arranged on the support frame. The inner side of the push rod abuts against the hinge joint of the two struts.

[0006] Further, an elastic member tending to force the lifting rod to move downward is arranged between the support plate and the lifting rod.

[0007] Further, a lower cross plate is provided on the two support plates, and lower card slots are provided on the lower cross plate in cooperation with the two support plates. An upper cross plate is provided on the two connecting rods, and upper card slots are provided on the upper cross plate in cooperation with the two connecting rods. The movable ends of the support rods are respectively hinged to the upper cross plate and the lower cross plate.

[0008] Further, a guide sleeve is provided on the support plate in cooperation with the guide rod.

[0009] The above technical solution of the present utility model has the following beneficial effects: The present utility model is provided with a lifting mechanism on the support plate. When the stacked cartons are moved between the two clappers and the first driving device drives the clappers to move, the lifting rod can be driven to rise through the lifting mechanism, so as to cancel the downward pressure on the cartons, reduce the friction force between the cartons, and reduce the resistance of the cartons moving inward, thereby avoiding the situation that the outer sides of the cartons are bent by being pushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a three-dimensional schematic diagram of an embodiment of the present utility model;

[0011] Figure 2 is a three-dimensional schematic diagram of the aligning structure and the carton pressing device of an embodiment of the present utility model;

[0012] Figure 3 is a cross-sectional schematic diagram of the lifting device of an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The following describes the preferred embodiments of the present utility model in detail with reference to the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0014] In the description of the present utility model, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0015] Such as Figures 1-3As shown in the figure, a cardboard aligning device for a printing press in this embodiment includes a frame 1, on which a conveying platform 2, a box pressing device 3 and an aligning structure 4 are arranged. The cardboard box is conveyed on the conveying platform 2. The box pressing device 3 can press the cardboard box to maintain its stability during conveyance. When the cardboard box moves to the aligning structure 4, an aligning operation is performed. The aligning structure 4 includes two symmetrically arranged beat plates 41 and a first driving device 42 for driving the two beat plates 41 to move towards each other. The first driving device 42 is a cylinder. The box pressing device 3 includes two juxtaposed box pressing rods 31. On the box pressing rods 31, at the position between the two beat plates 41, there are lifting rods 32. On both the lifting rods 32 and the box pressing rods 31, there are a number of box pressing wheels 33 arranged in parallel. On the box pressing rods 31, above the lifting rods 32, there is a support plate 34. On the lifting rods 32, there are guide rods 35 passing through the support plate 34. On the support plate 34, there is a lifting mechanism 5 for driving the lifting rods 32 to move up and down. After the cardboard box is conveyed between the two beat plates 41, the first driving device 42 drives the two beat plates 41 to move towards each other to perform an aligning operation on the cardboard box, and the lifting mechanism 5 drives the lifting rods 32 to move upward. The box pressing wheels 33 on the lifting rods 32 cancel the downward pressure on the cardboard box, reducing the friction between the cardboard boxes and the resistance for the cardboard boxes to move inward, thereby avoiding the situation where the outer sides of the cardboard boxes are bent by being pushed.

[0016] Preferably, there are two guide rods 35 on the lifting rods 32. The upper ends of the two guide rods 35 are connected with a connecting rod 36. The lifting mechanism 5 includes struts 51 hinged to each other. The movable ends of the two struts 51 are respectively hinged to the connecting rod 36 and the support plate 34. On the side of the support plate 34, there is a support frame 341. On the support frame 341, there is a push rod 52 that can move left and right. The inner side of the push rod 52 abuts against the hinged part of the two struts 51. When the two beat plates 41 move towards each other, the beat plates 41 can push the push rod 52 inward. When the push rod 52 moves inward, it will push against the hinged part of the two struts 51 to move inward, and the movable ends of the two struts 51 move away from each other, so that the connecting rod 36 can move upward. The connecting rod 36 drives the lifting rods 32 to move upward through the two guide rods 35. In this embodiment, there are two groups of struts 51 on each support plate 34 to balance the force for moving the connecting rod 36 upward.

[0017] Preferably, between the support plate 34 and the lifting rods 32, there is an elastic member 37 that tends to force the lifting rods 32 to move downward. The elastic member 37 is a spring. After the two beat plates 41 align the cardboard box, the two beat plates 41 move outward. The elastic force of the spring and the gravity of the lifting rods 32 will drive the lifting rods 32 to move downward, and the box pressing wheels 33 press on the cardboard box to continue pressing the cardboard box for subsequent conveyance.

[0018] Preferably, lower cross plates 38 are arranged on the two support plates 34. Lower card slots are arranged on the lower cross plates 38 in cooperation with the two support plates 34. Upper cross plates 39 are arranged on the two connecting rods 36. Upper card slots are arranged on the upper cross plates 39 in cooperation with the two connecting rods 36. The movable ends of the support rods 51 are respectively hinged to the upper cross plates 39 and the lower cross plates 38. The lower cross plates 38 clamp the two support plates 34 through the lower card slots, and the upper cross plates 39 clamp the two connecting rods 36 through the upper card slots, which can play a lateral supporting role for the two support plates 34 and the two connecting rods 36 when the two clappers 41 push the ejector rod 52 inward, avoiding the lateral loads on the support plates 34 and the connecting rods 36.

[0019] Preferably, guide sleeves 342 are arranged on the support plates 34 in cooperation with the guide rods 35.

[0020] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the present invention and its practical application, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A cardboard aligning device for a printing press, characterized in that: It includes a frame, on which a conveying platform, a box-pressing device and a aligning structure are arranged. The aligning structure includes two symmetrically arranged clapping plates and a first driving device for driving the two clapping plates to move toward each other. The box-pressing device includes two box-pressing rods arranged in parallel. A lifting rod is arranged on the box-pressing rod between the two clapping plates. A plurality of box-pressing wheels are arranged in parallel on the lifting rod and the box-pressing rod. A support plate is arranged on the upper side of the lifting rod on the box-pressing rod. A guide rod penetrating the support plate is arranged on the lifting rod. A lifting mechanism for driving the lifting rod to move up and down is arranged on the support plate.

2. A printing press cardboard aligning device according to claim 1, characterized in that: Two guide rods are arranged on the lifting rod, and the upper ends of the two guide rods are connected with connecting rods. The lifting mechanism includes support rods hinged to each other, and the movable ends of the two support rods are hinged on the connecting rod and the support plate respectively. A support frame is arranged on the side of the support plate, and a push rod is arranged on the support frame so as to be movable left and right, and the inner side of the push rod abuts against the hinge of the two support rods.

3. A printing press cardboard aligning device according to claim 2, characterized in that: An elastic member tending to force the lifting rod to move downward is arranged between the support plate and the lifting rod.

4. A printing press cardboard aligning device according to claim 2, characterized in that: The two support plates are provided with a lower transverse plate, and the lower transverse plate is provided with a lower groove to match the two support plates; the two connecting rods are provided with an upper transverse plate, and the upper transverse plate is provided with an upper groove to match the two connecting rods; the movable ends of the support rods are respectively hingedly arranged on the upper transverse plate and the lower transverse plate.

5. A printing press cardboard aligning device according to claim 2, characterized in that: The support plate is provided with a guide sleeve to cooperate with the guide rod.

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