Conveying device for light and small packaging boxes

Abstract

The utility model relates to the field of conveying, in particular to a conveying device for light and small packaging boxes, which comprises a frame, at least two conveying belts, a pressurizing mechanism and a limiting mechanism, the conveying belts, the pressurizing mechanism and the limiting mechanism are mounted on the frame and sequentially spliced, and a splicing gap is formed between the two conveying belts. The pressurizing mechanism comprises a first mounting frame and a pressing wheel assembly fixedly connected with the first mounting frame, the pressing wheel assembly is used for being in rolling connection with the top face of the packaging box, the limiting mechanism comprises a second mounting frame and a limiting piece connected with the second mounting frame, and at least one part of the limiting piece is located above the splicing gap. The limiting piece is used for abutting against the packaging box when the packaging box tends to turn over and limiting the packaging box from turning over. The pressurizing mechanism can exert pressure on the packaging box, increase friction force with the conveying belt and accelerate the conveying speed, the limiting mechanism is arranged, when the packaging box tends to turn over, the side face of the packaging box can be abutted against, turning over of the packaging box is limited, and the device is more suitable for conveying of light and small packaging boxes.

Description

Technical Field

[0001] The utility model relates to the field of conveying equipment, and more particularly to a conveying device for light and small packaging boxes. Background Art

[0002] In the fields of cosmetics, medicines, etc., small-sized and lightweight packaging boxes are often used to package products. However, there are many difficulties in the transportation process of such packaging boxes. First, the conveying device is usually composed of multiple conveyor belts. Since the ends of the conveyor belts are arc-shaped, there are splicing gaps at the joints of the conveyor belts. When a small-sized rectangular box passes through the joint of two conveyor belts, due to its own light weight and small bottom area, the box body is easily tilted due to the offset of the center of gravity, causing the edges of the box body to be stuck in the splicing gap, and then flipped over by the push of the conveyor belt. The inkjet printer prints on a surface that cannot be specified by the packaging box, resulting in poor packaging quality. Furthermore, the friction between the small-sized and lightweight packaging box and the conveyor belt is small, the conveyor belt speed is often greater than the speed of the packaging box, and the transportation speed of the packaging box is slow.

[0003] The prior art lacks a transport mechanism suitable for small-sized and light-weight packaging boxes, which enables the packaging boxes to be transported smoothly on a conveyor belt at a relatively high speed. Utility Model Content

[0004] The purpose of the present utility model is to overcome the problem that the transportation process of small-sized and light-weight packaging boxes in the prior art easily causes the box body to flip over and the speed is slow, and to provide a conveying device for light and small packaging boxes to avoid the light and small packaging boxes from easily flipping over during transportation and to increase the transportation speed.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A conveying device for light and small packaging boxes is provided, comprising a frame, no less than two conveyor belts mounted on the frame and spliced ​​in sequence, a pressure mechanism and a limiting mechanism, wherein the feed end of one conveyor belt is located at the discharge end of another adjacent conveyor belt, and a splicing gap is formed between the two conveyor belts, the pressure mechanism comprises a first mounting frame fixedly connected to the frame and a pressure wheel assembly fixedly connected to the first mounting frame, the pressure wheel assembly is used for rolling connection with the top surface of the packaging box, the distance between the pressure wheel assembly and the top surface of the conveyor belt is not greater than the height of the packaging box, the limiting mechanism comprises a second mounting frame and a limiting member connected to the second mounting frame, at least a portion of the limiting member is located above the splicing gap, and when the packaging box is located in the splicing gap, the limiting member is used to press against the packaging box when the packaging box tends to flip over, thereby limiting its flipping.

[0007] The utility model discloses a conveying device for light and small packaging boxes, wherein the packaging boxes are arranged on a conveyor belt in sequence, and when the packaging boxes pass through a pressure wheel assembly, the pressure wheel assembly and the top surface of the packaging boxes are rollingly connected, so the packaging boxes are subjected to downward pressure from the pressure wheel assembly, so that the friction between the packaging boxes and the conveyor belt increases, which increases the speed of the packaging boxes, and the packaging boxes at the rear push the packaging boxes in front to move, so that the overall speed of the packaging boxes is accelerated, and when the packaging boxes move to the discharge end of the conveyor belt, the packaging boxes fall obliquely into the splicing gap, and when the packaging boxes tend to flip over, the limiter will press against the outer surface of the packaging box to restrict it from flipping over, so that the inkjet printer can inkjet the code on the specified surface of the packaging box.

[0008] Furthermore, the pressure roller assembly includes a mounting plate, an elastic member, and one or more rollers parallel to each other. The mounting plate is connected to the first mounting frame via the elastic member. The elastic force of the elastic member is in the vertical direction. Both ends of the roller are rotatably connected to the mounting plate, and the rolling axis of the roller is perpendicular to the conveying direction of the conveyor belt. The roller is in rolling connection with the surface of the packaging box. When the packaging box passes through the roller, it is subjected to downward pressure from the roller, thereby increasing the friction between the packaging box and the conveyor belt. Since the mounting plate and the first mounting frame are connected via the elastic member, when the packaging box passes through the roller, the elastic member is compressed, the pressure roller assembly is lifted upward, and then squeezes the top surface of the packaging box. The advantage is that a certain elastic space is provided, and the height setting of the pressure roller assembly can be more flexible.

[0009] Furthermore, the first mounting frame includes first fixed rods fixed to the frame and located on both sides of the conveyor belt, and a crossbar slidably connected to the two fixed rods. The ends of the elastic member are fixedly connected to the crossbars and the mounting plate, respectively. The crossbars are slidably connected to the fixed rods, so that the height of the pressure wheel assembly can be adjusted by adjusting the height of the crossbars, so that packaging boxes of different heights can be pressed by the pressure wheel assembly, which is suitable for packaging boxes of different sizes.

[0010] Furthermore, the crossbar is also provided with a first locking member for fixing the position of the crossbar. The first locking member is used to fix the position of the crossbar to prevent relative slippage and improve stability.

[0011] Furthermore, the first fixing rod is provided with a scale, which can more intuitively know the current height of the pressing wheel assembly, and can adjust the height of the bottom of the pressing wheel assembly in advance to be equal to or slightly less than the height of the packaging box.

[0012] Furthermore, the second mounting frame includes a connecting member and a second fixing rod fixedly connected to the frame. The connecting member is movably connected to the second fixing rod, and the connecting member is fixedly connected to the limiting member. By adjusting the height of the connecting member, the limiting member can ensure that the limiting member can prevent the packaging boxes of different sizes from tipping over, which improves applicability. When the bottom area of ​​the packaging box being transported is large, the sharp corners of the packaging box are less likely to be stuck in the splicing gap, and there is no need to restrict the tipping over. Therefore, the connecting member can be rotated to remove the limiting member, thereby preventing the limiting member from restricting the packaging box.

[0013] Furthermore, the limiting mechanism further includes a second locking member, which is used to lock the position of the connecting member. The connecting member can be fixed by adjusting the second locking member to prevent the connecting member from sliding and rotating relative to the second fixing rod.

[0014] Furthermore, the machine also includes two limit plates mounted on both sides of the frame and parallel to each other, the limit plates being located above the conveyor belt. The limit plates can limit the sides of the packaging boxes to prevent them from falling off the conveyor belt, while also ensuring that the packaging boxes are arranged more orderly and not messy during transportation.

[0015] Furthermore, the two limiting plates are both slidably connected to the frame and the sliding direction is perpendicular to the conveying direction of the conveyor belt. When facing packaging boxes of different widths, the distance between the limiting plates can be adjusted to accommodate packaging boxes of different sizes.

[0016] Furthermore, the limiting member is a pressure rod made of stainless steel. The surface of stainless steel is smoother, which reduces friction between the limiting member and the packaging box, thereby reducing wear on the surface of the packaging box.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The setting of the pressure mechanism can apply pressure to the packaging box, increase the friction between it and the conveyor belt, and speed up the transportation speed of the packaging box. The setting of the limiting mechanism can resist the side of the packaging box when the packaging box tends to flip over, limiting its flipping.

[0019] 2. The setting of the limit plate can block the two sides of the packaging box to prevent it from falling off the conveyor belt.

[0020] 3. The horizontal bar is slidably connected to the first fixed rod, so the height of the pressure wheel assembly can be adjusted, so that the pressure wheel assembly can apply pressure to packaging boxes of different heights. The limiter is slidably connected to the second fixed rod, so the height of the limiter can be adjusted, so that the limiter can resist the corners of different packaging boxes to prevent them from flipping over, and the applicability is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a front view of a conveying device for light and small packaging boxes;

[0022] Figure 2 This is a structural schematic diagram of a conveying device for light and small packaging boxes;

[0023] Figure 3 for Figure 2 A partial enlarged view of position A;

[0024] Figure 4 for Figure 2 A partial enlarged view of position B.

[0025] In the accompanying drawings: 100, frame; 200, conveyor belt; 300, splicing gap; 400, pressurizing mechanism; 410, first mounting frame; 411, first fixing rod; 412, cross bar; 413, first locking member; 420, pressure wheel assembly; 421, mounting plate; 422, elastic member; 423, roller; 500, limiting mechanism; 510, second mounting frame; 511, connecting member; 512, second fixing rod; 513, second locking member; 520, limiting member; 600, limiting plate. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0027] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and so on indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] Example 1

[0029] This embodiment is the first embodiment of a conveying device for light and small packaging boxes. Figure 1-3As shown, the machine comprises a frame 100, two conveyor belts 200 mounted on the frame 100 and sequentially spliced, a pressurizing mechanism 400 and a limiting mechanism 500, wherein the feed end of one conveyor belt 200 is located at the discharge end of the other conveyor belt 200 adjacent thereto, and a splicing gap 300 is formed between the two conveyor belts 200, the pressurizing mechanism 400 comprises a first mounting frame 410 fixedly connected to the frame 100 and a pressure wheel assembly 420 fixedly connected to the first mounting frame 410, and the pressure wheel assembly 4 20 includes a mounting plate 421, an elastic member 422 and three parallel rollers 423. The first mounting frame 410 includes a first fixed rod 411 fixed to the frame 100 and located on both sides of the conveyor belt 200, and a cross bar 412 slidably connected to the two fixed rods. The two ends of the elastic member 422 are fixedly connected to the cross bar 412 and the mounting plate 421 respectively. The mounting plate 421 is connected to the first mounting frame 410 through the elastic member 422. The elastic force direction of the elastic member 422 is vertical. In the vertical direction, in this embodiment, the elastic member 422 is a compression spring, and both ends of the roller 423 are rotatably connected to the mounting plate 421. The rolling axis of the roller 423 is perpendicular to the conveying direction of the conveyor belt 200. The cross bar 412 is also provided with a first locking member 413 for fixing the position of the cross bar 412. In this embodiment, the first locking member 413 is a bolt, which is threadedly connected to the cross bar 412, and one end of the bolt is against the first fixing rod 411. The first fixing rod 411 is provided with a A scale is provided, and the pressure wheel assembly 420 is used to be rollingly connected to the top surface of the packaging box. The distance between the pressure wheel assembly 420 and the top surface of the conveyor belt 200 is not greater than the height of the packaging box. The limiting mechanism 500 includes a second mounting frame 510 and a limiting member 520 connected to the second mounting frame 510. At least a portion of the limiting member 520 is located above the splicing gap 300. When the packaging box is located in the splicing gap 300, the limiting member 520 is used to support the packaging box when the packaging box tends to flip over, thereby limiting its flipping.

[0030] The working principle of this embodiment is as follows:

[0031] The utility model is a conveying device for light and small packaging boxes. The packaging boxes are arranged on the conveyor belt 200 in sequence. When the packaging box passes through the pressure wheel assembly 420, the pressure wheel assembly 420 is connected to the top surface of the packaging box in a rolling manner. When the packaging box passes through the roller 423, it will be subjected to the downward pressure of the roller 423. Therefore, the friction between the packaging box and the conveyor belt increases, the speed of the packaging box increases, and the packaging box at the back pushes the packaging box at the front to move, so that the overall speed of the packaging box is accelerated. Since the mounting plate 421 and the first mounting frame 410 are connected by the elastic member 422 Therefore, when the packaging box passes through the roller 423, the elastic member 422 will be compressed, the pressure wheel assembly 420 will be lifted upward, and then the top surface of the packaging box will be squeezed. The advantage is that a certain elastic space is provided, and the height setting of the pressure wheel assembly 420 can be more flexible. When the packaging box moves to the discharge end of the conveyor belt 200, the packaging box falls obliquely into the splicing gap 300. When the packaging box tends to flip over, the limiter 520 will press against the surface of the packaging box that needs to be coded, limiting its flipping, so that the inkjet printer can print on the specified surface of the packaging box. The cross bar 412 is slidably connected to the fixed rod, so the height of the pressure wheel assembly 420 can be adjusted by adjusting the height of the cross bar 412, so that packaging boxes of different heights can be subjected to the pressure of the pressure wheel assembly 420, which is suitable for packaging boxes of different sizes. The first locking member 413 is used to fix the position of the cross bar 412 to prevent it from relative slipping and provide better stability. The scale on the first fixed rod 411 can more intuitively know the current height of the pressure wheel assembly 420, and the height of the bottom of the pressure wheel assembly 420 can be adjusted in advance to be equal to or slightly less than the height of the packaging box.

[0032] Example 2

[0033] This embodiment is a second embodiment of a conveying device for light and small packaging boxes. This embodiment is similar to the first embodiment, except that Figure 2 and Figure 4 As shown, the second mounting bracket 510 includes a connecting member 511 and a second fixing rod 512 fixedly connected to the frame 100. The connecting member 511 is movably connected to the second fixing rod 512. The movably connected in this embodiment means that the connecting member 511 can rotate relative to the second fixing rod 512 and move along the second fixing rod 512. The connecting member 511 is fixedly connected to the limiting member 520. The limiting mechanism 500 also includes a second locking member 513. The second locking member 513 is used to lock the position of the connecting member 511. In this embodiment, the second locking member 513 is a three-group bolt and nut assembly. The bolts pass through the connecting member 511 and are threadedly connected to the nuts. The fixing of the connecting member 511 can be achieved by tightening the bolts. The limiting member 520 is a pressure rod and is made of stainless steel.

[0034] The working principle of this embodiment is as follows:

[0035] By adjusting the height of the connecting member 511, it is ensured that the limit member 520 can limit the flipping of packaging boxes of different sizes, and the applicability is better. When the bottom area of ​​the transported packaging box is large, the corners of the packaging box are not easily stuck in the splicing gap 300, and there is no need to limit the flipping. Therefore, the connecting member 511 can be rotated to remove the limit member 520 to avoid the limit member 520 from restricting the packaging box. The connecting member 511 can be fixed by adjusting the second locking member 513 to avoid the connecting member 511 sliding and rotating relative to the second fixing rod 512. The stainless steel surface is smoother, which reduces the friction between the limit member 520 and the packaging box, thereby reducing the wear on the surface of the packaging box. In addition, the limit member 520 can also be other smooth materials with a certain hardness and rigidity.

[0036] Herein, another embodiment of the limiting mechanism 500 is provided. In this embodiment, the second mounting frame 510 is fixed on the frame 100 and is located on both sides of the conveyor belt 200. The limiting member 520 is a limiting cross bar located at the splicing gap 300. When the packaging box tends to flip over, the limiting cross bar will press against the side of the packaging box to limit its flipping.

[0037] Example 3

[0038] This embodiment is a third embodiment of a conveying device for light and small packaging boxes. This embodiment is similar to the first and second embodiments, except that Figure 2 As shown, it also includes two limit plates 600 respectively installed on both sides of the frame 100 and parallel to each other. The limit plates 600 are located above the conveyor belt 200. The two limit plates 600 are both slidably connected to the frame 100 and the sliding direction is perpendicular to the conveying direction of the conveyor belt 200 mechanism.

[0039] The working principle of this embodiment is as follows:

[0040] The limiting plates 600 can limit the two sides of the packaging box to prevent the packaging box from falling off the conveyor belt 200. At the same time, it can ensure that the packaging boxes are arranged more orderly and not messy during the transmission process. When facing packaging boxes of different widths, the distance between the limiting plates 600 can be adjusted to adapt to packaging boxes of different sizes.

[0041] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A conveying device for light and small packaging boxes, comprising a frame (100) and at least two conveyor belts (200) mounted on the frame (100) and sequentially spliced, wherein the feed end of one conveyor belt (200) is located at the discharge end of another adjacent conveyor belt (200), and a splicing gap (300) is formed between the two conveyor belts (200), characterized in that: The invention also includes a pressurizing mechanism (400) and a limiting mechanism (500), wherein the pressurizing mechanism (400) includes a first mounting frame (410) fixedly connected to the frame (100) and a pressure wheel assembly (420) fixedly connected to the first mounting frame (410), wherein the pressure wheel assembly (420) is used for rolling connection with the top surface of the packaging box, and the distance between the pressure wheel assembly (420) and the top surface of the conveyor belt (200) is not greater than the height of the packaging box, and the limiting mechanism (500) includes a second mounting frame (510) and a limiting member (520) connected to the second mounting frame (510), wherein at least a portion of the limiting member (520) is located above the splicing gap (300), and when the packaging box is located in the splicing gap (300), the limiting member (520) is used for resisting the packaging box when the packaging box has a tendency to flip over, thereby limiting its flipping.

2. A conveying device for light and small packaging boxes according to claim 1, characterized in that: The pressure wheel assembly (420) includes a mounting plate (421), an elastic member (422) and one or more rollers (423) parallel to each other. The mounting plate (421) is connected to the first mounting frame (410) via the elastic member (422). The elastic force direction of the elastic member (422) is vertical. Both ends of the roller (423) are rotatably connected to the mounting plate (421). The rolling axis of the roller (423) is perpendicular to the conveying direction of the conveyor belt (200).

3. A conveying device for light and small packaging boxes according to claim 2, characterized in that: The first mounting frame (410) includes a first fixing rod (411) fixed on the frame (100) and located on both sides of the conveyor belt (200), and a cross rod (412) slidably connected to the two fixing rods. The two ends of the elastic member (422) are fixedly connected to the cross rod (412) and the mounting plate (421), respectively.

4. A conveying device for light and small packaging boxes according to claim 3, characterized in that: The crossbar (412) is also provided with a first locking member (413) for fixing the position of the crossbar (412).

5. A conveying device for light and small packaging boxes according to claim 4, characterized in that: The first fixing rod (411) is provided with a scale.

6. A conveying device for light and small packaging boxes according to claim 1, characterized in that: The second mounting frame (510) includes a connecting member (511) and a second fixing rod (512) fixedly connected to the frame (100), the connecting member (511) and the second fixing rod (512) are movably connected, and the connecting member (511) is fixedly connected to the limiting member (520).

7. A conveying device for light and small packaging boxes according to claim 6, characterized in that: The limiting mechanism (500) further comprises a second locking member (513), and the second locking member (513) is used to lock the position of the connecting member (511).

8. The conveying device for light and small packaging boxes according to claim 1, characterized in that: It also includes two limiting plates (600) respectively installed on both sides of the frame (100) and parallel to each other, and the limiting plates (600) are located above the conveyor belt (200).

9. A conveying device for light and small packaging boxes according to claim 8, characterized in that: The two limiting plates (600) are both slidably connected to the frame (100), and the sliding direction is perpendicular to the conveying direction of the conveyor belt (200).

10. A conveying device for light and small packaging boxes according to any one of claims 1 to 8, characterized in that: The limiting member (520) is a pressure rod and is made of stainless steel.

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