Rack box cover falling assembly on packaging machine

Abstract

The utility model discloses a rack box cover falling assembly on a packaging machine, which comprises a gantry-shaped mounting frame, box outlets are uniformly distributed on a transverse plate at the upper end of the mounting frame, and a feeding plate at the upper part and the box outlets enclose a trough for stacking box covers; the material blocking plate is driven by an air cylinder to separate single-layer box covers, the lower overturning plate is driven by a rack to overturn by 180 degrees and can stretch out and draw back, and an upper suction rod is matched with a suction cup to suck the box covers and place the box covers into a grid bin under the box covers. And material blocking and overturning are coordinated, so that the transfer path is short, positioning is accurate, action is stable, large-amplitude movement abrasion of the mechanical arm is avoided, and the packaging efficiency and the operation reliability are improved.

Description

Technical Field

[0001] This invention relates to the field of food packaging machinery technology, and in particular to a rack and pinion box lid assembly for a packaging machine, which improves positioning accuracy and operational efficiency and reduces mechanical wear during the box lid dropping process. Background Technology

[0002] In food packaging machines, packaging boxes need to be placed one by one into the compartments of the conveyor belt, and then sequentially pass through the finished product clamping and filling mechanism, the box cap dropping mechanism, the heat sealing mechanism, and the cutting mechanism. The finished product clamping and filling mechanism needs to accurately fill the packaging box with material and cooperate with the box cap dropping mechanism to seal it. Existing box cap dropping methods mostly use a robotic arm to drive a suction cup in a linear reciprocating motion. Due to the large transfer distance, this is not only inefficient, but also prone to wear and tear due to the large-scale operation of the robotic arm, resulting in a decrease in motion accuracy. This can cause the box cap to fail to fall accurately into the compartment, resulting in loose boxes and affecting the normal operation of subsequent stations. Therefore, a more reasonable structure, more accurate positioning, and more efficient box cap dropping device is needed. Utility Model Content

[0003] To address the aforementioned issues, the purpose of this invention is to overcome the problems of large transfer distance, low efficiency, easy wear, and inaccurate positioning in existing robotic reciprocating box-dropping mechanisms, and to provide a rack and pinion box-dropping assembly that can shorten the transfer path, improve positioning accuracy, and enhance operational stability.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rack and pinion box-dropping assembly for a packaging machine, comprising a gantry-shaped mounting frame, a horizontal plate at the upper end of the mounting frame, with box outlets evenly distributed along the length of the horizontal plate, and feeding plates spaced apart above the horizontal plate, each feeding plate having a corresponding box outlet; a material trough is formed between the edges of the box outlets and the box inlets by several guide rods, and packaging boxes are stacked and placed into the material trough; a baffle plate that can be partially inserted into the box outlet is installed on the upper surface of the horizontal plate, with a corresponding compartment position below the box outlet; a flip plate that can open or close the box outlet is provided below the horizontal plate, the flip plate being located between the box outlet and the compartment, the flip plate achieving 180° rotation and being extendable via rack and pinion transmission, and suction rods corresponding to the box outlets on the flip plate, with suction cups at the ends of the suction rods, the suction rods being connected to a suction pump via a solenoid valve.

[0005] The baffle plates are symmetrically arranged on both sides of the box outlet and driven by the baffle cylinder. The baffle plates extend out and are inserted into the gap between the box covers in the material trough to block the upper box cover, while the lower box cover is attracted and transferred by the suction cup.

[0006] A tilting cylinder is connected to the upper end of the horizontal plate, and mounting plates are respectively provided on both sides of the lower end face of the horizontal plate. A rotatable rotating rod is provided between the two mounting plates. A material transfer cylinder is fixed on the rotating rod. The piston rod of the material transfer cylinder is connected to the tilting plate. The tilting cylinder drives the rotating rod to rotate 180° through a rack and gear meshing transmission structure.

[0007] The mounting frame is set on the machine base, which has a surrounding chain with feeding plates evenly distributed on the chain. The feeding plates have a matrix of grid compartments arranged in the form of grooves. The chain is driven by a servo motor. A position sensor is installed on the machine base below the mounting frame. When the position sensor senses the passing feeding plate, it transmits a signal to the controller. The controller then stops the servo motor, so that the grid compartments on the feeding plate are accurately positioned directly below the box outlet.

[0008] The beneficial effects of this utility model are as follows: The utility model uses a gantry-shaped mounting frame, horizontal plates to evenly distribute the box openings, stacked material troughs for feeding, baffle plates to accurately separate single-layer box lids, and a rotating plate with rack and pinion drive to rotate 180° and extend and cooperate with suction rods and suction cups to pick up and put down the box lids. This makes the box lid transfer path short and the movement smooth, avoiding wear and precision reduction caused by large robotic arm movements. The position sensor and servo motor linkage ensure accurate stopping of the compartment, improves the positioning accuracy of the box lid, prevents the box body from becoming loose and subsequent workstations from becoming chaotic, thereby significantly improving packaging efficiency and operational reliability.

[0009] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0010] Figure 1 This is a perspective view of a specific embodiment of the present utility model;

[0011] Figure 2 This is a cross-sectional view of a specific embodiment of the present utility model;

[0012] Figure 3 This is a partial structural diagram of a specific embodiment of the present utility model.

[0013] Explanation of reference numerals in the attached drawings: 101, mounting frame; 103, horizontal plate; 104, box outlet; 105, feeding plate; 106, box inlet; 107, guide rod; 108, material trough; 109, baffle plate; 110, compartment; 111, baffle cylinder; 112, tilting cylinder; 113, mounting plate; 114, rotating rod; 115, material transfer cylinder; 117, discharge plate; 307, tilting plate; 308, suction rod; 309, rack; 310, gear. Detailed Implementation

[0014] The present invention will be described in detail below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention.

[0015] like Figure 1 — Figure 3 As shown, this embodiment discloses a rack and pinion box-dropping assembly for a packaging machine, including a mounting frame 101. The mounting frame 101 is fixed to the machine base in a gantry shape. A horizontal plate 103 is provided at the upper end of the mounting frame 101, and box outlets 104 are evenly distributed along the length of the horizontal plate 103. Feeding plates 105 are provided at intervals above the horizontal plate 103, and feeding ports 106 are provided on the feeding plates 105 that correspond one-to-one with the box outlets 104. A material trough 108 is formed between the edges of the box outlets 106 and the box outlets 104 by several guide rods 107. Packaging boxes are stacked and placed in the material trough 108. A baffle plate 109 is installed on the upper surface of the horizontal plate 103. The baffle plate 109 can be partially inserted into the box outlets 104, and the box outlets 104 are directly below the compartments 110. Below the horizontal plate 103 is a flip plate 307, which is located between the box outlet 104 and the compartment 110. It can be flipped 180° and is retractable through rack and pinion transmission. The flip plate 307 is equipped with suction rods 308 that correspond one-to-one with the box outlet 104. The end of the suction rod 308 is equipped with a suction cup. The suction rod 308 is connected to the suction pump via a solenoid valve.

[0016] The baffle plates 109 are symmetrically arranged on both sides of the box outlet 104 and driven by the baffle cylinder 111. When the baffle plates 109 extend, they can be inserted into the gap between adjacent box covers in the material trough 108 to block the upper box cover, so that the lower box cover is attracted and transferred by the suction cup.

[0017] Mounting plates 113 are provided on both sides of the lower end face of the horizontal plate 103. A rotatable rotating rod 114 is installed between the two mounting plates 113. A tilting cylinder 112 is connected to the upper end of the horizontal plate 103. The piston rod of the tilting cylinder 112 is connected to a rack. A gear that meshes with the rack is provided on the rotating rod 114. A material transfer cylinder 115 is fixed on the rotating rod 114. The piston rod of the material transfer cylinder 115 is connected to the tilting plate 307.

[0018] Mounting frame 101 is mounted on the machine base, which has a surrounding chain with feeding plates 117 evenly distributed on it. Each feeding plate 117 has a matrix of recessed compartments 110. The chain is driven by a servo motor. A position sensor is located below the mounting frame 101 on the machine base. When the position sensor detects a passing feeding plate 117, it transmits a signal to the controller. The controller then stops the servo motor, ensuring that the compartments 110 on the feeding plate 117 are accurately positioned directly below the box outlet 104, guaranteeing precise box lid placement.

[0019] During operation, stacked box lids are fed into the material trough 108, the baffle plate 109 separates the single-layer box lids, the flipping plate 307 flips and extends under the rack and pinion drive, the suction rod 308 picks up the box lids via the suction cup, flips them back to their original position and accurately places the box lids into the stationary compartment 110, thus achieving efficient and precise box lid dropping operation.

Claims

1. A rack drop cover assembly on a packaging machine characterized by: The application relates to a packaging box feeding device, which comprises a portal-shaped mounting frame (101), the upper end of the mounting frame (101) is provided with a horizontal plate (103), the horizontal plate (103) is uniformly provided with box outlet ports (104) along the length direction, the upper side of the horizontal plate (103) is provided with a feeding plate (105) in a spaced mode, the feeding plate (105) is provided with feeding inlet ports (106) corresponding to the box outlet ports (104) one by one, the feeding inlet ports (106) and the edges of the box outlet ports (104) are surrounded by a plurality of guide rods (107) to form a material groove (108), and the packaging boxes are stacked and placed in the material groove (108); the upper end surface of the horizontal plate (103) is provided with a material blocking plate (109) which can be partially inserted into the box outlet ports (104), the lower side of the box outlet ports (104) is provided with corresponding grid bins (110), the lower side of the horizontal plate (103) is provided with a turnover plate (307) which can open or close the box outlet ports (104), the turnover plate (307) is located between the box outlet ports (104) and the grid bins (110), the turnover plate (307) is driven to rotate by 180 DEG through a rack transmission mode and can be telescopic, the turnover plate (307) is provided with suction rods (308) corresponding to the box outlet ports (104) one by one, the end of the suction rod (308) is provided with a suction disc, and the suction rod (308) is connected with a suction pump through an electromagnetic valve.

2. The rack-on-packer box lid assembly of claim 1, wherein: The material blocking plate (109) is symmetrically arranged on the two sides of the box outlet ports (104) and is driven by a material blocking cylinder (111), the material blocking plate (109) is inserted into the gap between the adjacent box covers in the material groove (108) when the material blocking plate (109) is extended, the upper box cover is blocked, and the lower box cover is adsorbed by the suction disc and transferred.

3. The rack-on-packer box lid assembly of claim 1, wherein: The upper end of the horizontal plate (103) is connected with a turnover cylinder (112), the lower end surface of the horizontal plate (103) is provided with mounting plates (113) on the two sides respectively, a rotatable rotating rod (114) is arranged between the two mounting plates (113), a material moving cylinder (115) is fixed on the rotating rod (114), the piston rod of the material moving cylinder (115) is connected with the turnover plate (307), and the turnover cylinder (112) drives the rotating rod (114) to rotate by 180 DEG through a rack and gear meshing transmission structure.

4. The rack-on-packer box lid assembly of claim 1, wherein: The mounting frame (101) is arranged on a machine table, the machine table is provided with a surrounding chain, the chain is uniformly provided with a material placing plate (117), the material placing plate (117) is provided with matrix-arranged grid bins (110), the grid bins (110) are arranged in a groove mode on the material placing plate (117), and the chain is driven by a servo motor; the machine table is provided with a position sensor below the mounting frame (101), when the position sensor senses the passing material placing plate (117), a signal is transmitted to a controller, the controller controls the servo motor to stop, and the grid bins (110) on the material placing plate (117) are accurately positioned below the box outlet ports (104).

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