Longitudinal pressing mechanism with pre-pressing wheels

Abstract

The longitudinal pressing mechanism comprises a cross beam, an indentation wheel set is connected to the cross beam, the indentation wheel set comprises a sliding structure sliding in the length direction of the cross beam, the pre-pressing wheel and the longitudinal pressing wheel, the pre-pressing wheel and the longitudinal pressing wheel are arranged on the sliding structure, and the pre-pressing wheel and the longitudinal pressing wheel are longitudinally distributed front and back. A conveying roller is arranged below the indentation wheel set. According to the utility model, longitudinal indentation is carried out on the pre-indentation, so that the longitudinal indentation is smoother, and the damage to paperboards is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box forming equipment technology, and in particular to a longitudinal pressing mechanism with a pre-pressing wheel. Background Technology

[0002] The longitudinal creasing structure is an important component of a carton forming machine, used to press corresponding longitudinal creases into the cardboard. Currently, the creasing structure of carton forming machines on the market is usually formed by the relative extrusion of upper and lower creasing rollers, which usually directly creasing the cardboard longitudinally. Because cardboard has a certain thickness and rigidity, it is easy to cause uneven creasing, and in severe cases, it may even damage the cardboard, resulting in waste. Utility Model Content

[0003] The purpose of this invention is to design a longitudinal pressing mechanism with a pre-pressing wheel to overcome the shortcomings of the above-mentioned technology.

[0004] This utility model designs a longitudinal pressing mechanism with a pre-pressing wheel, including a crossbeam, on which an indentation wheel assembly is connected. The indentation wheel assembly includes a sliding structure that slides along the length of the crossbeam and a pre-pressing wheel and a longitudinal pressing wheel disposed on the sliding structure. The pre-pressing wheel and the longitudinal pressing wheel are longitudinally distributed front and rear. A conveying roller is provided below the indentation wheel assembly.

[0005] Preferably, the indentation wheel set includes a base, and a transmission mechanism is provided between the base and the crossbeam. The base slides laterally back and forth on the crossbeam through the transmission mechanism, and the pre-pressure wheel and longitudinal pressure wheel are respectively connected to the base.

[0006] Further optimization includes a rack arranged along the length of the beam, a gear meshing with the rack on the base, a drive unit for driving the gear to rotate on the base, a slide rail along the length of the beam, and a guide block that slides with the slide rail on the base.

[0007] Further optimization involves a lead screw pair, with the lead screw of the lead screw pair arranged along the length of the crossbeam. The nut in the lead screw pair is connected to the base, and the crossbeam is equipped with a drive device for driving the lead screw to rotate.

[0008] Further optimization involves a transmission mechanism that is a conveyor belt structure. The conveyor belt structure includes a conveyor belt arranged along the length of the crossbeam. A fixed seat is fixed on the conveyor belt, and the fixed seat moves with the transmission of the conveyor belt. The fixed seat is provided with a positioning hole, and the base is provided with a retractable positioning pin. When the fixed seat moves to the point where the positioning hole aligns with the positioning pin, the positioning pin extends into the positioning hole to form a fixed connection, thereby causing the fixed seat to drive the base to move back and forth.

[0009] In a further optimization, the indentation wheel set also includes a support base mounted on the base. The support base has two lifting drives along the front-to-back direction. The fixed ends of the two lifting drives are connected to the support base, and the lifting ends of the two lifting drives are respectively connected to the pre-pressure wheel and the longitudinal pressure wheel.

[0010] In a further optimization, the lifting end of the lifting drive is connected to a mounting base, and the bottom of the mounting base is rotatably connected to a preload wheel and a longitudinal pressure wheel.

[0011] Further optimization includes a pre-compression wheel comprising a rotating shaft connected to a mounting base and a pre-compression wheel disc rotatably connected to the rotating shaft, wherein the pre-compression wheel disc is provided with a flat pressing surface for pre-longitudinally compressing the cardboard.

[0012] Further optimization includes a longitudinal pressure roller comprising a rotating shaft connected to a mounting base and a longitudinal pressure roller disc rotatably connected to the rotating shaft, the longitudinal pressure roller disc being provided with a pressure blade for longitudinally indenting the cardboard.

[0013] Further optimization involves having two or more indentation wheel sets, arranged sequentially along the length of the crossbeam.

[0014] The technical advantage of this invention is that the creasing wheel set includes a pre-pressing wheel and a longitudinal pressing wheel, which are distributed front to back. They sequentially pre-press and longitudinally press the paperboard, forming a pre-pressing mark. The longitudinal pressing then forms a final longitudinal creasing mark on top of the pre-pressing mark, thus achieving a second longitudinal pressing on the paperboard. In other words, the paperboard is first pre-pressed, and then longitudinal creasing is performed on top of the pre-pressing mark, resulting in a smoother longitudinal creasing mark and reduced damage to the paperboard. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the overall structure of this utility model;

[0017] Figure 3 This is a three-dimensional structural view of the indentation wheel assembly in this utility model.

[0018] In the diagram: 1. Crossbeam; 2. Indentation wheel assembly; 21. Pre-pressure wheel; 211. Pre-pressure wheel disc; 212. Flat pressing surface; 22. Longitudinal pressing wheel; 221. Longitudinal pressing wheel disc; 222. Pressing blade; 23. Base; 24. Support seat; 25. Lifting drive; 26. Mounting seat; 3. Rack; 4. Gear; 5. Drive component; 6. Slide rail; 7. Guide block; 8. Conveyor roller; 9. Cardboard. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 are within the protection scope of the present utility model.

[0020] This utility model includes a crossbeam 1, on which a creasing wheel assembly 2 is connected. The creasing wheel assembly 2 includes a sliding structure that slides along the length of the crossbeam 1 and a pre-pressing wheel 21 and a longitudinal pressing wheel 22 disposed on the sliding structure. The pre-pressing wheel 21 and the longitudinal pressing wheel 22 are distributed longitudinally. A conveying roller 8 is provided below the creasing wheel assembly 2. The cardboard 9 is located between the conveying roller 8 and the creasing wheel assembly 2 for conveying the cardboard 9.

[0021] The indentation wheel assembly 2 includes a base 23. In this embodiment, the base 23 is a plate structure arranged vertically. A transmission mechanism is provided between the base 23 and the crossbeam 1. The base 23 slides laterally back and forth on the crossbeam 1 through the transmission mechanism. The pre-pressure wheel 21 and the longitudinal pressure wheel 22 are respectively connected to the base 23, so that the pre-pressure wheel 21 and the longitudinal pressure wheel 22 can move back and forth along the crossbeam 1 at the same time.

[0022] The transmission mechanism includes a rack 3 arranged along the length of the crossbeam 1, a gear 4 meshing with the rack 3 on the base 23, and a driving member 5 driving the gear 4 to rotate on the top of the base 23. When the gear 4 moves along the length of the rack 3, it drives the base 23 to move, thereby enabling the preload wheel 21 and the longitudinal pressure wheel 22 to reciprocate along the crossbeam 1 simultaneously. The crossbeam 1 is also provided with a slide rail 6 along its length, and a guide block 7 slidingly engages with the slide rail 6 on the base 23. The sliding engagement between the slide rail 6 and the guide block 7 guides the reciprocating movement of the base 23 and ensures the stability of the movement of the base 23.

[0023] The transmission mechanism can also be a lead screw pair. The lead screw of the lead screw pair is set along the length of the crossbeam 1. The nut in the lead screw pair is connected to the base 23. The crossbeam 1 is equipped with a drive device for driving the lead screw to rotate. The lead screw rotates forward and backward, causing the nut to move back and forth. The nut drives the base 23 to move back and forth, thereby enabling the preload wheel 21 and the longitudinal pressure wheel 22 to move back and forth along the crossbeam 1 at the same time.

[0024] The transmission mechanism can also be a conveyor belt structure, which includes a conveyor belt arranged along the length of the crossbeam 1. A fixed seat is fixed on the conveyor belt. The fixed seat moves with the transmission of the conveyor belt. The fixed seat is provided with a positioning hole. A telescopic motor is provided on the base 23. A positioning pin is provided on the telescopic end of the telescopic motor. The positioning pin can extend and retract under the drive of the telescopic end. When the fixed seat moves to the positioning hole and aligns with the positioning pin, the positioning pin extends into the positioning hole and forms a fixed connection, so that the fixed seat drives the base 23 to move back and forth.

[0025] In addition to the three structures mentioned above, transmission mechanisms can also be other types. Since transmission mechanisms are a common technology on the market, they will not be listed one by one here.

[0026] The indentation wheel assembly 2 also includes a support seat 24 disposed on the base 23. The support seat 24 is connected to the bottom of the base 23. The support seat 24 is provided with two lifting drives 25 along the front-back direction. The fixed ends of the two lifting drives 25 are connected to the support seat 24. The lifting ends of the two lifting drives 25 are respectively connected to the pre-pressure wheel 21 and the longitudinal pressure wheel 22, so that the pre-pressure wheel 21 and the longitudinal pressure wheel 22 can move up and down through their respective lifting drives 25. Therefore, the pre-pressure wheel 21 and the longitudinal pressure wheel 22 can move up and down synchronously or move up and down independently.

[0027] Furthermore, the lifting end of the lifting drive 25 is connected to a mounting base 26. The bottom of the mounting base 26 is connected to a pre-pressing wheel 21 and a longitudinal pressing wheel 22. The pre-pressing wheel 21 includes a rotating shaft connected to the mounting base 26 and a pre-pressing wheel 21 disc rotatably connected to the rotating shaft. The mounting base 26 is provided with a side wing. The pre-pressing wheel 21 disc is rotatably connected to the side wing through the rotating shaft. The pre-pressing wheel 21 disc has a disc-shaped structure, and its periphery is a pre-pressing surface, which is used for pre-longitudinally pressing the cardboard 9.

[0028] Furthermore, the pre-pressing surface of the pre-pressing roller 21 is a flat pressing surface 212, that is, the pre-pressing roller 21 is cylindrical and directly pre-presses onto the cardboard 9, forming straight pre-pressing marks on the cardboard 9.

[0029] Furthermore, the longitudinal pressure roller 22 includes a rotating shaft connected to the mounting base 26 and a longitudinal pressure roller 22 disc rotatably connected to the rotating shaft. The longitudinal pressure roller 22 disc is also rotatably connected to the side wing via the rotating shaft. The longitudinal pressure roller 22 disc is also a disc-shaped structure with its periphery as a longitudinal pressure surface. A pressure blade 222 is provided on the longitudinal pressure surface for longitudinally indenting the cardboard 9. In this embodiment, the pre-pressure roller 21 is in front and the longitudinal pressure roller 22 is behind. Therefore, the cardboard 9 is conveyed from the pre-pressure roller 21 to the longitudinal pressure roller 22. The cardboard 9 passes through the pre-pressure roller 21 and the longitudinal pressure roller 22 in sequence. Therefore, the cardboard 9 is pre-pressed first and then longitudinally pressed. The indentation width of the pre-press is larger, while the indentation width of the longitudinal press is smaller. Therefore, the cardboard 9 is first pressed with a larger indentation, and then a second indentation, namely a longitudinal indentation, is made on this indentation to achieve two longitudinal indentations.

[0030] Furthermore, the number of indentation wheel sets 2 is two or more, arranged sequentially along the length of the crossbeam 1.

[0031] The lifting drive 25, the drive device and drive component 5 can be a motor, a cylinder or a hydraulic cylinder.

[0032] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A longitudinal pressing mechanism with a preload roller, characterized in that, The device includes a crossbeam (1), on which an indentation wheel assembly (2) is connected. The indentation wheel assembly (2) includes a sliding structure that slides along the length of the crossbeam (1) and a pre-pressure wheel (21) and a longitudinal pressure wheel (22) disposed on the sliding structure. The pre-pressure wheel (21) and the longitudinal pressure wheel (22) are distributed longitudinally front and back. A conveyor roller (8) is provided below the indentation wheel assembly (2).

2. The longitudinal pressing mechanism with a preload wheel according to claim 1, characterized in that, The sliding structure includes a base (23), and a transmission mechanism is provided between the base (23) and the crossbeam (1). The base (23) slides laterally back and forth on the crossbeam (1) through the transmission mechanism. The preload wheel (21) and the longitudinal pressure wheel (22) are respectively connected to the base (23).

3. The longitudinal pressing mechanism with a preload wheel according to claim 2, characterized in that, The transmission mechanism includes a rack (3) arranged along the length of the crossbeam (1), a gear (4) meshing with the rack (3) on the base (23), a drive member (5) driving the gear (4) to rotate on the base (23), a slide rail (6) along the length of the crossbeam (1), and a guide block (7) slidingly engaging with the slide rail (6) on the base (23).

4. The longitudinal pressing mechanism with a preload wheel according to claim 2, characterized in that, The transmission mechanism is a lead screw pair, the lead screw of the lead screw pair is arranged along the length direction of the crossbeam (1), the nut in the lead screw pair is connected to the base (23), and the crossbeam (1) is provided with a drive device for driving the lead screw to rotate.

5. The longitudinal pressing mechanism with a preload wheel according to claim 2, characterized in that, The transmission mechanism is a conveyor belt structure, which includes a conveyor belt arranged along the length of the crossbeam (1). A fixed seat is fixed on the conveyor belt, and the fixed seat moves with the transmission of the conveyor belt. The fixed seat is provided with a positioning hole, and the base (23) is provided with a retractable positioning pin. When the fixed seat moves to the positioning hole and aligns with the positioning pin, the positioning pin extends into the positioning hole and forms a fixed connection, so that the fixed seat drives the base (23) to move back and forth.

6. The longitudinal pressing mechanism with a preload wheel according to claim 2, characterized in that, The indentation wheel assembly (2) also includes a support seat (24) disposed on the base (23). The support seat (24) is provided with two lifting drives (25) along the front-back direction. The fixed ends of the two lifting drives (25) are connected to the support seat (24), and the lifting ends of the two lifting drives (25) are respectively connected to the pre-pressure wheel (21) and the longitudinal pressure wheel (22).

7. The longitudinal pressing mechanism with a preload wheel according to claim 6, characterized in that, The lifting end of the lifting drive (25) is connected to a mounting base (26), and the bottom of the mounting base (26) is rotatably connected to a preload wheel (21) and a longitudinal pressure wheel (22).

8. The longitudinal pressing mechanism with a preload wheel according to claim 7, characterized in that, The pre-pressing wheel (21) includes a rotating shaft connected to the mounting base (26) and a pre-pressing wheel (21) disc rotatably connected to the rotating shaft. The pre-pressing wheel (21) disc is provided with a flat pressing surface (212) for pre-pressing the cardboard (9).

9. The longitudinal pressing mechanism with a preload wheel according to claim 7, characterized in that, The longitudinal pressure roller (22) includes a rotating shaft connected to the mounting base (26) and a longitudinal pressure roller (22) disc rotatably connected to the rotating shaft. The longitudinal pressure roller (22) disc is provided with a pressure blade (222) for longitudinally indenting the cardboard (9).

10. The longitudinal pressing mechanism with a preload wheel according to any one of claims 1 to 9, characterized in that, The number of indentation wheel sets (2) is two or more, arranged sequentially along the length direction of the crossbeam (1).

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