Bonding device for corrugated carton production

Abstract

The utility model relates to the field of corrugated carton production, and discloses a bonding device for corrugated carton production, which is characterized in that two lifting cylinders are symmetrically arranged on the front side and the rear side of the upper end of a mounting frame, a lifting plate is mounted at the bottom ends of push rods of the lifting cylinders, and three mounting screw rods distributed at equal intervals are sleeved on the lifting plate in an up-down sliding manner; a mounting roller frame is mounted at the bottom end of the mounting screw rod, a compression spring is connected between the upper portion of the mounting roller frame and the lower portion of the lifting plate in an abutting mode, bonding rollers are rotatably mounted on the front side and the rear side of the mounting roller frame through bearings, and the mounting roller frame and the lifting plate are mounted through the screw rod and the compression spring in an up-down moving mode; when thick paperboards are bonded, springs of the compression springs can be overcome to enable the compression springs to move upwards, then damage to corrugated structures of corrugated cartons caused by too large pressure is avoided, the bonding roller can move up and down through the arranged lifting air cylinder, and then the corrugated carton bonding device is suitable for bonding of corrugated cartons of various different thicknesses.

Description

Technical Field

[0001] The utility model relates to the field of corrugated paper box production, in particular to a bonding device for corrugated paper box production. Background Art

[0002] A Chinese utility model patent with announcement number CN220180266U discloses a box gluing machine that can compress corrugated paper boxes. When the corrugated paper is located between the pressing wheel and the conveyor belt, each pressing wheel compresses its corresponding area. When the thickness of different areas of a single corrugated paper is different, or when the thickness of the same area of ​​the same batch of corrugated paper is different, the adaptive spring always maintains the pressure of the pressing wheel on the corrugated paper, thereby ensuring that the bonding area of ​​the corrugated paper is compressed and improving the yield rate.

[0003] In the above structure, the entire pressing roller structure is suspended on the bracket through a telescopic rod and a spring. The overall weight is relatively large. After long-term use, the pressing roller is easily loosened due to the elastic fatigue of the spring, and the gluing operation cannot be performed effectively. In addition, the entire structure is relatively complicated and is not convenient for subsequent maintenance. For this reason, we designed a gluing device for corrugated box production. Utility Model Content

[0004] In order to solve the technical problem that the pressure roller falls downward due to spring elastic fatigue, and the gluing operation cannot be effectively performed at this time, the utility model provides a gluing device for corrugated paper box production.

[0005] The utility model is implemented by the following technical scheme: a bonding device for corrugated box production, including a conveyor, a mounting frame is arranged across the front and rear above the conveyor, two lifting cylinders are symmetrically arranged on the front and rear sides of the upper end of the mounting frame, the push rod of the lifting cylinder passes through the mounting frame and is placed below it, and a lifting plate is installed at the bottom end of the push rod of the lifting cylinder, three mounting screws distributed at equal intervals are slidably sleeved on the lifting plate, a mounting roller frame is installed at the bottom end of the mounting screw, and a clamping spring is abutted between the top of the mounting roller frame and the bottom of the lifting plate, and bonding rollers are rotatably installed on the front and rear sides of the mounting roller frame through bearings.

[0006] As a further improvement of the above scheme, three circular holes with equal intervals are provided on the upper surface of the lifting plate, the lower end of the mounting screw is fixed above the mounting roller frame, the upper end of the mounting screw passes through the circular hole and is placed above the lifting plate, and a locking nut is threadedly connected above the mounting screw, so that the mounting roller frame and the bonding roller can move upward, and when bonding thicker cardboard, it can overcome the elastic force of the compression spring to make it move upward, thereby avoiding the situation where the corrugated structure of the corrugated box is damaged due to excessive pressure, and the design of the locking nut can hang the mounting roller frame and the bonding roller to prevent them from being pulled down and causing damage to the compression spring, and the compression spring can also be moved upward as a whole when its elasticity becomes smaller, thereby increasing its elastic force.

[0007] As a further improvement of the above scheme, the compression spring is sleeved on the mounting screw, and the upper and lower ends of the compression spring are respectively in contact with the upper surface of the mounting roller frame and the lower surface of the lifting plate. The compression spring enables the bonding roller to have a downward force, which can apply pressure to the two corrugated cardboards below it, thereby firmly bonding the two corrugated cardboards together.

[0008] As a further improvement of the above scheme, a side panel is fixed on both the front and rear ends of the right side of the conveyor, a threaded hole is opened in the middle of the side panel, an adjusting screw is threadedly connected to the threaded hole, and the inward end of the adjusting screw is rotatably connected to a guide plate. The design of the guide plate is convenient for guiding the corrugated cardboard on the conveyor so that its position will not be shifted during the conveying process, which is convenient for subsequent pressing and bonding operations.

[0009] As a further improvement of the above scheme, two guide rods are symmetrically arranged on the left and right sides of the side panel about the adjusting screw. The guide rods are slidably sleeved on the side panel forward and backward, and the inward end of the guide rods is connected to the guide plate, which can limit and guide the guide plate, facilitate its forward and backward movement, and thus can guide corrugated cardboards of various sizes.

[0010] As a further improvement of the above scheme, the bottom end of the guide plate does not contact the upper surface of the conveyor belt on the conveyor, and a plurality of equally spaced support wheels are rotatably installed on the outward surface of the guide plate through an axle pin, and the support wheels are in rolling contact with the conveyor belt. There is a -mm spacing between the bottom end of the guide plate and the upper surface of the conveyor belt, which is smaller than the thickness of the corrugated cardboard. The two do not contact to avoid wear on the conveyor belt and the guide plate, and the design of the support wheels can provide support therefor, and the support wheels can roll with the conveyor belt to avoid wear.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model installs the bonding roller on the mounting roller frame, and the mounting roller frame and the lifting plate are installed to move up and down through the screw rod and the compression spring. When bonding thicker paperboard, the spring of the compression spring can be overcome to make it move upward, thereby avoiding damage to the corrugated structure of the corrugated paper box due to excessive pressure. The lifting cylinder also enables the bonding roller to move up and down, thereby being suitable for bonding corrugated paper boxes of various thicknesses. The overall structure of the device is simple and easy to install and maintain.

[0013] 2. By setting guide plates on the front and rear sides of the conveyor belt, corrugated cardboards of various sizes can be guided to avoid position deviation during transportation, and the bottom end of the guide plate does not contact the upper surface of the conveyor belt on the conveyor, avoiding wear on the conveyor belt and the guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the overall structure of a bonding device for corrugated paper box production provided by the utility model;

[0015] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0016] Figure 3 for Figure 1 The left and right isometric drawings;

[0017] Figure 4 This is a schematic diagram of the enlarged structure at point B in 3.

[0018] Description of main symbols:

[0019] 1. Conveyor; 2. Mounting frame; 3. Lifting cylinder; 4. Bonding roller; 5. Side plate; 51. Guide rod; 52. Adjusting screw; 6. Guide plate; 61. Support wheel; 7. Lifting plate; 8. Mounting roller frame; 81. Mounting screw; 82. Locking nut; 83. Compression spring. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0021] Example:

[0022] Please combine Figure 1-Figure 4A gluing device for producing corrugated paper boxes in this embodiment includes a conveyor, wherein a mounting frame 2 is arranged across the front and rear above the conveyor 1, and two lifting cylinders 3 are symmetrically arranged on the front and rear sides of the upper end of the mounting frame 2, and the push rod of the lifting cylinder 3 passes through the mounting frame 2 and is placed below it, and a lifting plate 7 is installed at the bottom end of the push rod of the lifting cylinder 3, and the lifting plate 7 is slidably sleeved with three mounting screws 81 distributed at equal intervals up and down, and a mounting roller frame 8 is installed at the bottom end of the mounting screw 81, and a compression spring 83 is abutted between the top of the mounting roller frame 8 and the bottom of the lifting plate 7, and bonding rollers 4 are rotatably installed on the front and rear sides of the mounting roller frame 8 through bearings.

[0023] The upper surface of the lifting plate 7 is provided with three circular holes distributed at equal intervals. The lower end of the mounting screw 81 is fixed above the mounting roller frame 8. The upper end of the mounting screw 81 passes through the circular hole and is placed above the lifting plate 7. A locking nut 82 is threadedly connected to the mounting screw 81. The mounting roller frame 8 and the bonding roller 4 can move upward. When bonding thicker cardboard, they can overcome the elastic force of the compression spring 83 to move upward, thereby avoiding the situation where the corrugated structure of the corrugated box is damaged due to excessive pressure. The design of the locking nut 82 can hang the mounting roller frame 8 and the bonding roller 4 to prevent them from being pulled down and causing damage to the compression spring 83. The compression spring 83 can also be moved upward as a whole when its elasticity becomes smaller, thereby increasing its elastic force.

[0024] The compression spring 83 is sleeved on the mounting screw 81, and the upper and lower ends of the compression spring 83 are respectively in contact with the upper surface of the mounting roller frame 8 and the lower surface of the lifting plate 7. The compression spring 83 enables the bonding roller 4 to have a downward force, which can apply pressure to the two corrugated cardboards below it, thereby firmly bonding the two corrugated cardboards together.

[0025] A side plate 5 is fixed to both the front and rear ends of the right side of the conveyor 1. A threaded hole is opened in the middle of the side plate 5. An adjusting screw 52 is threadedly connected to the threaded hole. The inward end of the adjusting screw 52 is rotatably connected to a guide plate 6. The design of the guide plate 6 is convenient for guiding the corrugated cardboard on the conveyor 1 so that its position will not be offset during the conveying process, which is convenient for subsequent pressing and bonding operations.

[0026] Two guide rods 51 are symmetrically arranged on the left and right sides of the side panel 5 about the adjusting screw 52. The guide rods 51 are slidably sleeved on the side panel 5 forward and backward, and the inward end of the guide rods 51 is connected to the guide plate 6, which can limit and guide the guide plate 6, facilitate its forward and backward movement, and thus can guide corrugated cardboards of various sizes.

[0027] The bottom end of the guide plate 6 does not contact the upper surface of the conveyor belt on the conveyor 1, and a plurality of equally spaced support wheels 61 are rotatably installed on the outward side surface of the guide plate 6 through an axle pin, and the support wheels 61 are in rolling contact with the conveyor belt. There is a spacing of 1-2 mm between the bottom end of the guide plate 6 and the upper surface of the conveyor belt, which is smaller than the thickness of the corrugated cardboard. The two do not contact to avoid wear on the conveyor belt and the guide plate 6, and the design of the support wheel 61 can provide support therefor, and the support wheel 61 can roll with the conveyor belt to avoid wear.

[0028] The implementation principle of a bonding device for corrugated cardboard production in the embodiment of the present application is as follows: in actual use, first loosen the locking nut 82 to move the mounting roller frame 8 up and down to a suitable position, so as to adjust the pressure of the compression spring 83, so that the pressure generated by the compression spring 83 will not cause pressure damage to the corrugated cardboard, and then adjust the height of the bonding roller 4 by the lifting cylinder 3 according to the height of the corrugated cardboard box to be bonded, so that the lower surface of the outer ring of the bonding roller 4 can contact the upper surface of the corrugated cardboard and generate a certain pressure on it, and then adjust the height of the bonding roller 4 according to the height of the corrugated cardboard box to be bonded. The width of the cardboard can be adjusted by adjusting the distance between the two guide plates 6; when gluing, the corrugated cardboard box coated with glue and overlapped is placed on the conveyor belt of the conveyor 1, and it will move to the left under the action of the conveyor belt and be conveyed to the bottom of the gluing roller 4, and the gluing roller 4 will make the upper and lower corrugated cardboards firmly bonded together. Since the gluing roller 4 can move up and down under the action of the pressing spring 83, when a part of the thicker cardboard is placed under the gluing roller 4, the gluing roller 4 can move upward by a certain distance, thereby avoiding the damage of the corrugated structure of the corrugated cardboard box caused by excessive pressure;

[0029] By installing the bonding roller 4 on the mounting roller frame 8, and the mounting roller frame 8 and the lifting plate 7 are installed to move up and down through the screw rod and the compression spring 83, when bonding thicker paperboard, the spring of the compression spring 83 can be overcome to make it move upward, thereby avoiding damage to the corrugated structure of the corrugated paper box due to excessive pressure, and the lifting cylinder 3 also enables the bonding roller 4 to move up and down, thereby being suitable for bonding corrugated paper boxes of various thicknesses. The overall structure of the device is simple and easy to install and maintain;

[0030] By setting guide plates 6 on the front and rear sides of the conveyor belt, corrugated cardboards of various sizes can be guided to avoid position deviation during transportation, and the bottom end of the plate does not contact the upper surface of the conveyor belt on the conveyor 1, avoiding wear on the conveyor belt and the guide plate 6.

[0031] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A bonding device for corrugated box production, comprising a conveyor, characterized in that: A mounting frame (2) is arranged across the front and rear above the conveyor (1), and two lifting cylinders (3) are symmetrically arranged on the front and rear sides of the upper end of the mounting frame (2). The push rod of the lifting cylinder (3) passes through the mounting frame (2) and is placed below it, and a lifting plate (7) is installed at the bottom end of the push rod of the lifting cylinder (3). The lifting plate (7) is slidably sleeved with three mounting screws (81) distributed at equal intervals. A mounting roller frame (8) is installed at the bottom end of the mounting screw (81), and a clamping spring (83) is abutted between the top of the mounting roller frame (8) and the bottom of the lifting plate (7). Adhesive rollers (4) are rotatably installed on the front and rear sides of the mounting roller frame (8) through bearings.

2. A bonding device for corrugated box production as claimed in claim 1, characterized in that: The upper surface of the lifting plate (7) is provided with three circular holes distributed at equal intervals, the lower end of the mounting screw (81) is fixed above the mounting roller frame (8), the upper end of the mounting screw (81) passes through the circular hole and is placed above the lifting plate (7), and a locking nut (82) is threadedly connected to the upper side of the mounting screw (81).

3. A bonding device for corrugated box production as claimed in claim 2, characterized in that: The compression spring (83) is sleeved on the mounting screw (81), and the upper and lower ends of the compression spring (83) are respectively in contact with the upper surface of the mounting roller frame (8) and the lower surface of the lifting plate (7).

4. A bonding device for corrugated box production as claimed in claim 1, characterized in that: A side plate (5) is fixed to both front and rear ends of the right side of the conveyor (1), a threaded hole is provided in the middle of the side plate (5), an adjusting screw (52) is threadedly connected to the threaded hole, and the inward end of the adjusting screw (52) is rotatably connected to a guide plate (6).

5. A bonding device for corrugated box production as claimed in claim 4, characterized in that: Two guide rods (51) are symmetrically arranged on the left and right sides of the side plate (5) about the adjusting screw rod (52). The guide rods (51) are slidably sleeved on the side plate (5) in a forward and backward manner, and the inward end of the guide rod (51) is connected to the guide plate (6).

6. A bonding device for corrugated box production as claimed in claim 5, characterized in that: The bottom end of the guide plate (6) does not contact the upper surface of the conveyor belt on the conveyor (1), and a plurality of support wheels (61) distributed at equal intervals are rotatably mounted on the outward side surface of the guide plate (6) via an axle pin, and the support wheels (61) are in rolling contact with the conveyor belt.

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