Leveling mechanism applied to packaging box leather shell machine

By designing adjustable-spacing leveling rollers and an electric pusher-driven receiving assembly in the packaging box shell machine, the problems of packaging box damage and low production efficiency have been solved, achieving precise material dropping and cushioning protection for the packaging boxes.

CN224240531UActive Publication Date: 2026-05-15湖北正鑫智能包装有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
湖北正鑫智能包装有限公司
Filing Date
2025-05-21
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

During the leveling process of existing packaging box shell machines, the packaging boxes are easily damaged due to improper speed of the transmission leveling rollers, and the production efficiency is affected.

Method used

A leveling mechanism was designed, comprising an adjustment component and a receiving component. The spacing of the leveling rollers is adjusted by driving a synchronous motor, and combined with an electric push rod and a gear and rack system, it achieves precise material dropping and cushioning protection for the packaging box.

Benefits of technology

It effectively prevents damage to packaging boxes, maintains production efficiency, and increases the flexibility of use and the stability of production.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224240531U_ABST
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Abstract

The utility model discloses a leveling mechanism applied to a packing box leather shell machine, which relates to the technical field of packing box processing, and comprises a bracket I, connecting plates are fixed at two ends of the outer top surface of the bracket I, two pairs of leveling rollers are arranged between the two connecting plates, and an adjusting component for adjusting the distance is arranged between the two pairs of leveling rollers. The right end of the outer side wall of the first support is provided with a material receiving assembly used for storing the leveled packaging box. Through mutual cooperation of the electric push rod, the rack, the gear and the lead screw, the square sleeve is driven to drive the bearing plate to move up and down in the material receiving frame, then a packaging box can accurately and directly fall on the bearing plate, meanwhile, under the buffering effect of the buffering sponge, the packaging box can be prevented from being damaged, and therefore the production efficiency is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of packaging box processing technology, and in particular to a leveling mechanism used in packaging box shell making machines. Background Technology

[0002] Currently, many books, calendars, and various packaging boxes on the market require the use of a leather box machine. These leather boxes are made by bonding a layer of cardboard and a layer of leather seal together. The production and processing of packaging boxes are generally achieved through a leather box machine.

[0003] The final step in existing box-making machines is to flatten the packaging boxes. This is typically done using drive leveling rollers, which flatten the boxes before conveying them out. However, the boxes usually fall directly onto the receiving plate, causing damage. If the drive leveling rollers level too quickly, the boxes may fly out and directly impact the receiving plate. If the drive leveling rollers level too slowly, it will affect production efficiency. Therefore, those skilled in the art have provided a leveling mechanism for use in box-making machines to solve the problems mentioned in the background section. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a leveling mechanism for use in packaging box shell making machines, which solves the problem mentioned in the background art of preventing packaging boxes from being damaged by impacting the receiving plate, while not affecting production efficiency.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a leveling mechanism applied in a packaging box shell machine, including a support frame, with connecting plates fixed at both ends of the outer top surface of the support frame, two pairs of leveling rollers between the two connecting plates, and an adjustment component for adjusting the spacing between the two pairs of leveling rollers, and a receiving component for receiving the leveled packaging box is provided at the right end of the outer side wall of the support frame.

[0006] The receiving assembly includes a second bracket fixedly mounted on the right outer wall of a first bracket by bolts. A receiving frame is fixed to the top surface of the second bracket, and a receiving plate is provided inside the receiving frame. A square hole is opened at the center of the bottom surface of the receiving frame. A square sleeve is fixedly installed at the center of the bottom surface of the receiving plate. One end of the square sleeve slides through the square hole and extends into the interior of the second bracket. A lead screw is rotatably installed at the center of the bottom surface of the second bracket. One end of the lead screw is threaded into the inside of the square sleeve. A feed inlet is opened at the top of the left outer wall of the receiving frame, and cushioning sponges are provided at both ends of the right inner wall of the receiving frame.

[0007] As a further technical solution of this utility model, the adjustment assembly includes a top plate fixed between two connecting plates and located above the leveling roller. The outer side walls of the two connecting plates are provided with through openings, and the two openings are provided with sliders. The two ends of one pair of leveling rollers respectively extend to the opposite outer side walls of the two connecting plates, and one end of one pair is fixedly connected to a synchronous motor. The two ends of the other pair of leveling rollers respectively extend to the opposite outer side walls of the two sliders, and one end of one pair is fixedly connected to a synchronous motor.

[0008] As a further technical solution of this utility model, a straight opening communicating with the opening is provided at the center of the outer top surface of the two connecting plates. A vertical plate is fixedly installed on the outer top surface of the two sliders. One end of the two vertical plates extends through the two straight openings to the outer top surface of the top plate. A threaded rod is rotatably installed on the outer top surface of the top plate. A horizontal plate is threadedly sleeved on the outer wall of the threaded rod. The two ends of the horizontal plate are fixedly connected to the two vertical plates respectively. Sliding rods are symmetrically installed inside the two openings. The two ends of the two sliders are slidably sleeved on the outer walls of the two pairs of sliding rods respectively.

[0009] As a further technical solution of this utility model, a gear is fixedly installed inside the second bracket and on the outer wall of the lead screw, an electric push rod is fixedly installed on the inner bottom surface of the second bracket, a block is fixed at the output end of the electric push rod, a rack is fixed on the outer wall of the block, and the gear and the rack are meshed.

[0010] As a further technical solution of this utility model, a through-type vertical slot is provided on the outer right side of the receiving frame.

[0011] As a further technical solution of this utility model, a knob is fixedly installed on the outer top surface of the threaded rod.

[0012] This utility model provides a leveling mechanism for use in packaging box shell making machines, which has the following advantages compared with the prior art:

[0013] 1. This design is applied to a leveling mechanism in a packaging box shell machine. Through the cooperation of an electric push rod, rack, gear, and lead screw, the square sleeve drives the receiving plate to move up and down within the receiving frame, thereby allowing the packaging box to fall accurately and directly onto the receiving plate. At the same time, the cushioning effect of the buffer sponge can prevent damage to the packaging box, thus ensuring production efficiency.

[0014] 2. One application of this design in a leveling mechanism for a packaging box shell machine is to drive one pair of leveling rollers to move relative to the other pair of leveling rollers by the combined action of a threaded rod, a horizontal plate, a vertical plate, and a slider. This allows for adjustment of the distance between the two pairs of leveling rollers as needed, thereby increasing the flexibility of use. Attached Figure Description

[0015] Figure 1 A first three-dimensional structural schematic diagram of a leveling mechanism applied in a packaging box shell machine;

[0016] Figure 2 This is a schematic diagram of a second three-dimensional structure of a leveling mechanism used in a packaging box shell machine;

[0017] Figure 3 This is a cross-sectional three-dimensional structural diagram of a leveling mechanism used in a packaging box shell machine.

[0018] Figure 4 This is a three-dimensional structural diagram of the receiving component of a leveling mechanism used in a packaging box shell machine.

[0019] In the picture:

[0020] Support 1; 101. Connecting plate; 102. Leveling roller;

[0021] Adjustment components; 201, top plate; 202, opening; 203, slider; 204, synchronous motor one; 205, synchronous motor two; 206, straight opening; 207, vertical plate; 208, threaded rod; 209, horizontal plate; 210, slide rod; 211, knob;

[0022] Material receiving assembly; 301, bracket two; 302, material receiving frame; 303, receiving plate; 304, square hole; 305, square sleeve; 306, lead screw; 307, feed port; 308, cushioning sponge; 309, gear; 310, electric push rod; 311, block; 312, rack; 313, vertical groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This utility model provides a leveling mechanism for a packaging box shell machine: It includes a support frame 1, with connecting plates 101 fixed at both ends of the outer top surface of the support frame 1. Two pairs of leveling rollers 102 are arranged between the two connecting plates 101 (the packaging box is conveyed to the two pairs of leveling rollers 102 via an external conveying device for leveling). An adjustment assembly 2 for adjusting the spacing is provided between the two pairs of leveling rollers 102. The adjustment assembly 2 includes a top plate 201 fixed between the two connecting plates 101 and above the leveling rollers 102. A through-type opening 202 is provided above the outer walls of the two connecting plates 101. A slider 203 is provided inside the two openings 202. One pair of leveling rollers 102... The two ends of the two connecting plates 101 extend to opposite outer walls, and one end is fixedly connected to a synchronous motor 204 (which drives one pair of leveling rollers 102 to rotate synchronously in a clockwise direction by controlling and starting the synchronous motor 204). The two ends of the other pair of leveling rollers 102 extend to opposite outer walls, and one end is fixedly connected to a synchronous motor 205 (which drives the other pair of leveling rollers 102 to rotate synchronously in a counterclockwise direction by controlling and starting the synchronous motor 205). A straight opening 206 is provided at the center of the outer top surface of the two connecting plates 101, which is connected to the opening 202. A vertical plate 207 is fixedly installed on the outer top surface of block 203. One end of the two vertical plates 207 extends through two straight openings 206 to the outer top surface of the top plate 201. A threaded rod 208 is rotatably installed on the outer top surface of the top plate 201. A horizontal plate 209 is threadedly sleeved on the outer wall of the threaded rod 208. The two ends of the horizontal plate 209 are fixedly connected to the two vertical plates 207 respectively. Sliding rods 210 are symmetrically installed inside the two openings 202. The two ends of the two sliders 203 are slidably sleeved on the outer walls of the two pairs of sliding rods 210 respectively. A knob 211 is fixedly installed on the outer top surface of the threaded rod 208. In use, the knob 211 is turned according to the actual needs to drive the threaded rod 208 to rotate. The horizontal plate 209 drives the vertical plate 207 to move the slider 203 up and down inside the opening 202. With the assistance of the slide rod 210, the stability of the slider 203 during movement is ensured. This causes one pair of leveling rollers 102 to move relative to the other pair of leveling rollers 102, moving away from or closer to each other. This allows the spacing between the two pairs of leveling rollers 102 to be adjusted as needed (after adjustment, the threaded rod 208 is locked by a shaft locker installed on the top plate 201 to prevent self-rotation), increasing the flexibility of use. At the same time, the two pairs of leveling rollers 102 are used by synchronous motor 1 204 and synchronous motor 205 to flatten and convey the packaging box.

[0025] A receiving assembly 3 for storing the leveled packaging box is provided on the right end of the outer wall of bracket 1. The receiving assembly 3 includes a bracket 2 301 fixedly installed on the outer right wall of bracket 1 by bolts (connected by bolt threads for easy maintenance and replacement). A receiving frame 302 is fixed to the top surface of bracket 2 301. A receiving plate 303 is provided inside the receiving frame 302. A square hole 304 is opened at the center of the bottom surface of the receiving frame 302. A square sleeve 305 is fixedly installed at the center of the bottom surface of the receiving plate 303. One end of the square sleeve 305 slides through the square hole 304 and extends into the interior of bracket 2 301. A lead screw 30 is rotatably installed at the center of the bottom surface of bracket 2 301. 6. One end of the lead screw 306 is threaded into the inner side of the square sleeve 305. A feed port 307 is provided on the upper part of the left outer wall of the receiving frame 302. Both ends of the right inner wall of the receiving frame 302 are provided with buffer sponges 308 (the buffer sponges 308 can reduce the collision between the packaging box and the receiving frame 302 after leveling and conveying, thus reducing the possibility of damage). A gear 309 is fixedly installed inside the bracket 2 301 and on the outer wall of the lead screw 306. An electric push rod 310 is fixedly installed on the inner bottom surface of the bracket 2 301. A block 311 is fixed at the output end of the electric push rod 310. A rack 312 is fixed on the outer wall of the block 311. The gear 309 and the rack 312 are meshed. Before leveling the packaging boxes, the electric push rod 310 is controlled and activated to extend the block 311, which in turn causes the rack 312 to drive the gear 309 to rotate the lead screw 306. This, in turn, drives the square sleeve 305 to push the receiving plate 303 upward along the inside of the receiving frame 302. The vertical slot 313 is used to observe in real time whether the receiving plate 303 is horizontal with the direction of the packaging box discharge. When it reaches the appropriate position, the electric push rod 310 is stopped. After the leveled packaging box falls onto the receiving plate 303 through the feed port 307, the electric push rod 310 is controlled to extend and retract, so that the height of the receiving plate 303 decreases as the packaging box increases. When the receiving plate 303 is in contact with the bottom surface of the receiving frame 302, the leveling of the packaging box is stopped. Then, the electric push rod 310 is activated again to drive the receiving plate 303 to push the stacked packaging boxes out of the receiving frame 302 for easy retrieval.

[0026] The working principle of this utility model is as follows: When using it, first turn the knob 211 to drive the threaded rod 208 to rotate according to actual needs, so that the horizontal plate 209 drives the vertical plate 207 to drive the slider 203 to slide up and down inside the opening 202, so that one pair of leveling rollers 102 moves relative to the other pair of leveling rollers 102 to adjust the distance between the two pairs of leveling rollers 102.

[0027] At the same time, the electric push rod 310 is activated to extend the block 311, which causes the rack 312 to drive the gear 309 to rotate the lead screw 306, so that the square sleeve 305 pushes the receiving plate 303 to move upward along the inside of the receiving frame 302, so that the receiving plate 303 is level with the packaging box discharge direction.

[0028] At the same time, the packaging box is conveyed to the two pairs of leveling rollers 102 by an external conveying device, and the synchronous motor 1 204 and synchronous motor 205 are started to drive the two pairs of leveling rollers 102 to level the packaging box, and then conveyed to the receiving plate 303 along the feed port 307.

[0029] Next, activate the electric push rod 310 to extend and retract, allowing the receiving plate 303 to decrease in height as the packaging boxes are stacked. Once it is observed through the vertical slot 313 that the receiving plate 303 and the inner bottom surface of the receiving frame 302 are in contact with each other, stop leveling the packaging boxes.

[0030] Finally, the electric push rod 310 is activated again to drive the receiving plate 303 to push the stacked packaging boxes out of the receiving frame 302 and pick them up.

[0031] It should be noted that synchronous motor 204 and synchronous motor 205 are existing technologies, and their working principles will not be described in detail in this article. All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art, so the control method and circuit connection will not be explained in detail.

[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A leveling mechanism used in a packaging box shell machine, characterized in that, The bracket includes a support (1), with connecting plates (101) fixed at both ends of the outer top surface of the support (1). Two pairs of leveling rollers (102) are provided between the two connecting plates (101), and an adjustment component (2) for adjusting the spacing is provided between the two pairs of leveling rollers (102). A receiving component (3) for storing the leveled packaging box is provided at the right end of the outer wall of the support (1). The receiving assembly (3) includes a second bracket (301) fixedly mounted on the outer right side wall of the first bracket (1) by bolts. A receiving frame (302) is fixed to the top surface of the second bracket (301). A receiving plate (303) is provided inside the receiving frame (302). A square hole (304) is opened at the center of the bottom surface of the receiving frame (302). A square sleeve (305) is fixedly installed at the center of the bottom surface of the receiving plate (303). One end of the square sleeve (305) slides through the square hole (304) and extends into the interior of the bracket two (301). A lead screw (306) is rotatably installed at the center of the bottom surface of the bracket two (301). One end of the lead screw (306) is threaded into the inside of the square sleeve (305). A feed port (307) is provided on the upper part of the left outer wall of the receiving frame (302). Both ends of the right inner wall of the receiving frame (302) are provided with buffer sponges (308).

2. The leveling mechanism for use in a packaging box shell machine according to claim 1, characterized in that, The adjustment assembly (2) includes a top plate (201) fixed between two connecting plates (101) and above the leveling roller (102). The outer side walls of the two connecting plates (101) are provided with through openings (202). The two openings (202) are provided with sliders (203). The two ends of a pair of leveling rollers (102) are respectively rotated and extended to the opposite outer side walls of the two connecting plates (101), and one end of each roller is fixedly connected to a synchronous motor (204). The two ends of another pair of leveling rollers (102) are respectively rotated and extended to the opposite outer side walls of the two sliders (203), and one end of each roller is fixedly connected to a synchronous motor (205).

3. A leveling mechanism for use in a packaging box shell machine according to claim 2, characterized in that, A straight opening (206) communicating with the opening (202) is provided at the center of the outer top surface of the two connecting plates (101). A vertical plate (207) is fixedly installed on the outer top surface of the two sliders (203). One end of the two vertical plates (207) extends through the two straight openings (206) to the outer top surface of the top plate (201). A threaded rod (208) is rotatably installed on the outer top surface of the top plate (201). A horizontal plate (209) is threadedly sleeved on the outer wall of the threaded rod (208). The two ends of the horizontal plate (209) are fixedly connected to the two vertical plates (207) respectively. Slide rods (210) are symmetrically installed inside the two openings (202). The two ends of the two sliders (203) are slidably sleeved on the outer walls of the two pairs of slide rods (210).

4. A leveling mechanism for use in a packaging box shell machine according to claim 1, characterized in that, A gear (309) is fixedly installed inside the second bracket (301) and on the outer wall of the lead screw (306). An electric push rod (310) is fixedly installed on the inner bottom surface of the second bracket (301). A block (311) is fixed at the output end of the electric push rod (310). A rack (312) is fixed on the outer wall of the block (311). The gear (309) and the rack (312) are meshed together.

5. A leveling mechanism for use in a packaging box shell machine according to claim 1, characterized in that, The receiving frame (302) has a through-type vertical slot (313) on its right outer wall.

6. A leveling mechanism for use in a packaging box shell machine according to claim 3, characterized in that, A knob (211) is fixedly installed on the outer top surface of the threaded rod (208).