Packaging box separating device for modified atmosphere packaging machine

Abstract

The utility model provides a packaging box separating device for a modified atmosphere packaging machine, which relates to the technical field of modified atmosphere packaging machines and comprises a packaging box conveying belt and a packaging box separating belt. The packaging box conveying belt and the packaging box separating belt convey packaging boxes from back to front. The packaging box separating belt is connected in front of the packaging box conveying belt. The belt speed of the packaging box separating belt is higher than that of the packaging box conveying belt. According to the packaging box separating device for the modified atmosphere packaging machine, the problem that in the prior art, when a moving device moves packaging boxes, adjacent packaging boxes are easily affected is solved, the packaging boxes on the conveying belt can be separated, and therefore the moving device is prevented from making contact with the adjacent packaging boxes when moving the packaging boxes.

Description

Technical Field

[0001] The utility model relates to the technical field of modified atmosphere packaging machines, in particular to a packaging box separation device used in modified atmosphere packaging machines. Background Art

[0002] A modified atmosphere packaging machine is a specialized device used to preserve food. It vacuums the sealed packaging mold cavity, then fills it with a preservative gas created by mixing two or three gases (such as nitrogen, oxygen, and carbon dioxide) using a built-in mixer. The machine then performs heat sealing and film cutting to deliver the finished product in a fresh-keeping package. This technology effectively extends the shelf life of food, preserving its freshness and taste.

[0003] In the prior art, for example, Chinese patent application No. 201110060116.0 discloses a continuous box-type modified atmosphere packaging machine, which explains the specific working principle of a modified atmosphere packaging machine.

[0004] During the use of the modified atmosphere packaging machine, the packaging box needs to be moved to a specified position (i.e., between the upper mold and the lower mold). In order to ensure the accuracy of the movement position of the packaging box, there is usually a moving device for moving the packaging box. However, the packaging boxes on the existing conveyor belt for transporting packaging boxes may move close to each other and stick together in the front and back direction along the conveying direction of the conveyor belt. This is not conducive to the moving device clamping the packaging box from the side of the packaging box, because when the moving device moves a packaging box, it may contact the packaging box close to it, which may cause the packaging box close to it to be affected (squeezed or pushed) by the moving device. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a packaging box separation device for a modified atmosphere packaging machine, which can conveniently separate the packaging boxes on the conveyor belt.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model provides a packaging box separation device for a modified atmosphere packaging machine, comprising a packaging box conveyor belt and a packaging box separation belt; the packaging box conveyor belt and the packaging box separation belt convey the packaging boxes in a direction from back to front; the packaging box separation belt is connected in front of the packaging box conveyor belt; the belt speed of the packaging box separation belt is faster than the belt speed of the packaging box conveyor belt.

[0008] The packaging box separation device for the modified atmosphere packaging machine provided by the present invention preferably also includes an actively rotatable driving roller; the packaging box conveyor belt includes a first driven roller and several annular first circular transmission belts; the packaging box separation belt includes a second driven roller and several annular second circular transmission belts; a plurality of first grooves and a plurality of second grooves are provided on the driving roller; the first groove and the second groove are both annular, and the circular axes of the first groove and the second groove are collinear with the axis of the driving roller; the bottom diameter of the first groove is smaller than the bottom diameter of the second groove; the first circular transmission belt is tightened around the first driven roller and the driving roller; each of the first circular transmission belts is respectively arranged in one of the first grooves; the second circular transmission belt is tightened around the second driven roller and the driving roller; each of the second circular transmission belts is respectively arranged in one of the second grooves.

[0009] The utility model provides a packaging box separation device for a modified atmosphere packaging machine, preferably, the first groove and the second groove are arranged at intervals; and the distances between adjacent first grooves and second grooves are equal.

[0010] The packaging box separation device for a modified atmosphere packaging machine provided by the present invention preferably further comprises a motor and a belt; the driving roller and the motor are connected via the belt transmission.

[0011] The packaging box separation device for the modified atmosphere packaging machine provided by the present invention preferably also includes a shell; the packaging box conveyor belt also includes a turning rod; the turning rod is rotatably fixed on the shell; the driving roller is rotatably fixed on the shell; the motor is fixed on the shell; the first driven roller is rotatably fixed on the shell; the second driven roller is rotatably fixed on the shell; the ring shape of the first circular conveyor belt is arranged around the turning rod; the first circular conveyor belt is tightly attached to the upper end of the turning rod; the horizontal section of the first driven roller and the upper end of the turning rod are coplanar.

[0012] The packaging box separation device for the modified atmosphere packaging machine provided by the present invention preferably also includes a first support plate and a second support plate; the first support plate is fixed on the shell; the first support plate is fixed between the turning rod and the first driven roller; the upper plate surface of the first support plate is coplanar with the horizontal section of the upper end of the turning rod; the second support plate is fixed on the shell; the second support plate is fixed between the driving roller and the second driven roller; the upper plate surface of the second support plate is coplanar with the horizontal section of the bottom upper end of the second groove.

[0013] The present invention provides a package box separation device for a modified atmosphere packaging machine, which relates to the technical field of modified atmosphere packaging machines and includes a package box conveyor belt and a package box separation belt. The package box conveyor belt and the package box separation belt convey the packages from back to front. The package box separation belt is connected to the front of the package box conveyor belt. The speed of the package box separation belt is faster than the speed of the package box conveyor belt. The package box separation device for a modified atmosphere packaging machine provided by the present invention solves the problem in the prior art that a moving device easily affects adjacent packages when moving a package box. The device can separate packages on the conveyor belt, thereby preventing the moving device from contacting adjacent packages when moving the package box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention and its features, configurations, and advantages will become more apparent upon reading the detailed description of the following non-limiting embodiments with reference to the accompanying drawings. Like reference numerals indicate like parts throughout the drawings. The drawings are not drawn to scale, with emphasis placed on illustrating the subject matter of the present invention.

[0015] Figure 1 It is a schematic diagram of the overall structure of the packaging box separation device for the modified atmosphere packaging machine provided in Example 1 of the present utility model.

[0016] Figure 2 This is a schematic diagram of the connection structure between the motor and the drive roller of the packaging box separation device for the modified atmosphere packaging machine provided in Example 1 of the present utility model.

[0017] Figure 3 This is a schematic diagram of the structure of a driving roller of a packaging box separation device for a modified atmosphere packaging machine provided in Example 1 of the present utility model.

[0018] Figure 4 This is a schematic diagram of the positional relationship between the package box separating device for the modified atmosphere packaging machine provided in Example 1 of the present invention and the moving device 01 when the device serves as a part of the modified atmosphere packaging machine. DETAILED DESCRIPTION

[0019] The following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. It is obvious that the embodiments described are only some of the embodiments of the present invention, rather than all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0020] Example 1: When a modified atmosphere packaging machine is packaging a box, it is necessary to move the box to the groove of the lower mold, and then the upper mold and the lower mold are brought close to each other to form a closed space to replace the gas, and the sealing film is covered on the box to complete the sealing. The step of moving the box to the groove of the lower mold usually requires a moving device to be implemented. The box needs to be moved to a position where it can be grabbed by the moving device. This step is usually implemented by a conveyor belt. The box is continuously provided to the modified atmosphere packaging machine through the conveyor belt. However, the boxes on the conveyor belt may be close to each other, which may make it difficult for the moving device to accurately grab a box. To solve this problem, the box separation device for the modified atmosphere packaging machine provided in Example 1 of the present invention is as follows: Figures 1 to 4 As shown, it includes a packaging box conveyor belt 1 and a packaging box separating belt 2; the packaging box conveyor belt 1 and the packaging box separating belt 2 convey the packaging boxes in a direction from back to front; the packaging box separating belt 1 is connected before the packaging box conveyor belt 2; the belt speed of the packaging box separating belt 1 is faster than the belt speed of the packaging box conveyor belt 2.

[0021] The modified atmosphere packaging machine is a prior art. As disclosed in the comparative document provided in the background technology, the specific structure and working principle of a modified atmosphere packaging machine have been disclosed. The modified atmosphere packaging machine mainly includes three major systems, one is the film supply system, the second is the film application system, and the third is the conveyor belt. First, the conveyor belt moves the packaging box to the film application system, and the film supply system moves the sealing film to the film application system. Then, the film application system moves the packaging box to the specified position, and then the sealing film is applied to the packaging box. The packaging box separation device for the modified atmosphere packaging machine provided in Example 1 of the present invention is an improvement to the conveyor belt part of the modified atmosphere packaging machine. In this embodiment, the conveyor belt is set to a packaging box conveyor belt 1 and a packaging box separation belt 2 with different belt speeds. After the packaging box is placed on the packaging box conveyor belt 1 from the outside, the packaging box moves along the packaging box. The conveyor belt 1 moves to the packaging box separation belt 2. When the packaging box enters the packaging box separation belt 2, it will accelerate because the speed of the packaging box separation belt 2 is greater than the speed of the packaging box conveyor belt 1. When two packaging boxes that are close to each other on the packaging box conveyor belt 1 move to the connection point between the packaging box conveyor belt 1 and the packaging box separation belt 2, the packaging boxes that are close to each other will enter the packaging box separation belt 2 one after another, so that the packaging boxes that are close to each other are accelerated one after another, so that the packaging boxes that were originally close to each other are separated at the packaging box separation belt 2, thereby facilitating the subsequent mobile device to grab the packaging box; compared with the prior art, the atmosphere packaging machine uses a uniform speed conveyor belt to transport the packaging box. The equipment provided in this embodiment can ensure that the mobile device accurately grabs a packaging box to avoid adjacent packaging boxes affecting the grabbing of the packaging box.

[0022] The packaging box separation device for the modified atmosphere packaging machine provided in Example 1 of the utility model solves the problem in the prior art that the moving device easily affects the adjacent packaging boxes when moving the packaging boxes. The packaging boxes on the conveyor belt can be separated, thereby preventing the moving device from contacting the adjacent packaging boxes when moving the packaging boxes.

[0023] Since the conveyor belt in the existing modified atmosphere packaging machine only needs to be driven by one motor, and the packaging box conveyor belt 1 and the packaging box separation belt 2 with different belt speeds are driven by two different motors, the cost of the modified atmosphere packaging machine will increase. In order to specifically realize the different belt speeds of the packaging box conveyor belt 1 and the packaging box separation belt 2, in this embodiment, it also includes an actively rotatable driving roller 3; the packaging box conveyor belt includes a first driven roller 11 and a plurality of annular first circular conveyor belts 12; the packaging box separation belt 2 includes a second driven roller 21 and a plurality of annular second circular conveyor belts 22; the driving roller 3 is provided with a plurality of There are a first groove 31 and several second grooves 32; the first groove 31 and the second groove 32 are both circular, and the circular axes of the first groove 31 and the second groove 32 are collinear with the axis of the driving roller shaft 3; the bottom diameter of the first groove 31 is smaller than the bottom diameter of the second groove 32; the first circular transmission belt 12 is tightened around the first driven roller shaft 11 and the driving roller shaft 3; each first circular transmission belt 12 is respectively arranged in a first groove 31; the second circular transmission belt 22 is tightened around the second driven roller shaft 21 and the driving roller shaft 3; each second circular transmission belt 22 is respectively arranged in a second groove 32. In this embodiment, a first circular conveyor belt 12 and a second circular conveyor belt 22 are driven by a driving roller 3 (the circular conveyor belt is a prior art and is disclosed in the printer labeling belt line mechanism disclosed in Chinese patent application No. 202221537027.0). A first groove 31 and a second groove 32 of different diameters are provided on the driving roller 3. When the driving roller 3 rotates one circle, the moving distances of the first circular conveyor belt 12 and the second circular conveyor belt 22 are different. Therefore, the linear speeds of the first circular conveyor belt 12 and the second circular conveyor belt 22 are different. The packaging box is arranged on the first circular conveyor belt 12 and the second circular conveyor belt. 22, there is static friction between the packaging box and the first circular conveyor belt 12 and the second circular conveyor belt 22, and the moving speed of the packaging box on the first circular conveyor belt 12 and the second circular conveyor belt 22 is consistent with the moving speed of the first circular conveyor belt 12 and the second circular conveyor belt 22. Since the diameter of the first groove 31 is smaller than the diameter of the second groove 32, the moving speed of the first circular conveyor belt 12 fixed in the first groove 31 is smaller than the moving speed of the second circular conveyor belt 22 fixed in the second groove 32. Therefore, the speed of conveying the packaging box by the packaging box conveyor belt 1 is smaller than the speed of conveying the packaging box by the packaging box separation belt 2.

[0024] To ensure balanced support for the boxes moving on the box conveyor belt 1 and the box separator belt 2, in this embodiment, the first grooves 31 and second grooves 32 are spaced apart; the spacing between adjacent first grooves 31 and second grooves 32 is equal. On the box conveyor belt 1, the boxes are supported and moved by the evenly spaced first circular conveyor belts 12. On the box separator belt 2, the boxes are supported and moved by the evenly spaced second circular conveyor belts 22. The evenly spaced first and second circular conveyor belts 12, 22 provide even support for the bottom of the boxes, ensuring a stable arrangement.

[0025] To achieve the rotation of the drive roller 3, this embodiment further includes a motor 4 and a belt 5; the drive roller 3 and the motor 4 are connected via the belt 5. In this embodiment, the motor 4 preferably drives the drive roller 3 via the belt 5. This is conventional technology and will not be described in detail here.

[0026] In order to prevent the packaging boxes from sliding on the packaging box conveyor belt 1 and the packaging box separation belt 2, as a preferred solution, in this embodiment, it also includes a shell 6; the packaging box conveyor belt 1 also includes a turning rod 13; the turning rod 13 can be rotatably fixed on the shell 6; the driving roller 3 can be rotatably fixed on the shell 6; the motor 4 is fixed on the shell 6; the first driven roller 11 can be rotatably fixed on the shell 6; the second driven roller 21 can be rotatably fixed on the shell 6; the first circular transmission belt 12 is arranged in a ring shape around the turning rod 13; the first circular transmission belt 12 is tightly attached to the upper end of the turning rod 13; the horizontal section of the upper end of the first driven roller 11 and the turning rod 13 are coplanar. Since the diameters of the first groove 31 and the second groove 32 of the driving roller 3 are different, the diameter of the first groove 31 is smaller than the diameter of the second groove 32. Therefore, the upper end height of the first groove 31 is lower than the upper end height of the second groove 32. In order to ensure that the packaging box remains stable on the packaging box conveyor belt 1 and the packaging box separation belt 2, the first circular conveyor belt 12 and the second circular conveyor belt 22 need to remain level when supporting the packaging box. If the planes of the first circular conveyor belt 12 and the second circular conveyor belt 22 supporting the packaging box are determined based on the upper end heights of the first groove 31 and the second groove 32, then the plane of the first circular conveyor belt 12 supporting the packaging box will be lower than the plane of the second circular conveyor belt 22 supporting the packaging box, resulting in a height difference between the packaging box and the packaging box when the packaging box conveyor belt 1 moves to the packaging box separation belt 2, causing the packaging box to vibrate. In this embodiment, an additional turning rod 13 is provided to raise the height of the first circular conveyor belt 12 so that the first circular conveyor belt 12 is flush with the height of the second circular conveyor belt 22, so that the packaging box remains stable when passing through the junction of the packaging box conveyor belt 1 and the packaging box separation belt 2.

[0027] In order to prevent the packaging box from falling from the gap between adjacent first circular conveyor belts 12 and adjacent second circular conveyor belts 22, as a preferred solution, in this embodiment, it also includes a first support plate 7 and a second support plate 8; the first support plate 7 is fixed on the shell 6; the first support plate 7 is fixed between the turning rod 13 and the first driven roller shaft 11; the upper plate surface of the first support plate 7 is coplanar with the horizontal section of the upper end of the turning rod 13; the second support plate 8 is fixed on the shell 6; the second support plate 8 is fixed between the driving roller shaft 3 and the second driven roller shaft 21; the horizontal section of the upper plate surface of the second support plate 8 and the bottom upper end of the second groove 32 are coplanar. The first support plate 7 and the second support plate 8 are arranged below the plane where the first circular conveyor belt 12 and the second circular conveyor belt 22 support the packaging boxes to provide support. On the one hand, this can ensure the uniformity of the heights of the first circular conveyor belts 12 and the second circular conveyor belts 22. On the other hand, it can provide support when the packaging boxes attempt to fall between adjacent first circular conveyor belts 12 and adjacent second circular conveyor belts 22, thereby assisting the packaging boxes to move stably on the packaging box conveyor belt 1 and the packaging box separation belt 2.

[0028] In summary, the present invention provides a package box separation device for a modified atmosphere packaging machine, which relates to the technical field of modified atmosphere packaging machines and includes a package box conveyor belt and a package box separation belt. The package boxes are conveyed from back to front by the package box conveyor belt and the package box separation belt. The package box separation belt is connected to the front of the package box conveyor belt. The speed of the package box separation belt is faster than the speed of the package box conveyor belt. The package box separation device for a modified atmosphere packaging machine provided by the present invention solves the problem in the prior art that moving devices easily affect adjacent packages when moving packages. The device can separate packages on the conveyor belt, thereby preventing the moving device from contacting adjacent packages when moving packages.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A packaging box separation device for a modified atmosphere packaging machine, characterized in that: Including packaging box conveyor belt and packaging box separation belt; The packaging box conveyor belt and the packaging box separation belt convey the packaging boxes from back to front; The packaging box separation belt is connected before the packaging box conveyor belt; The speed of the packaging box separation belt is faster than the speed of the packaging box conveyor belt; Also included is a drive roller shaft that can be actively rotated; The packaging box conveyor belt comprises a first driven roller and a plurality of annular first circular transmission belts; the packaging box separation belt comprises a second driven roller and a plurality of annular second circular transmission belts; The driving roller shaft is provided with a plurality of first grooves and a plurality of second grooves; The first groove and the second groove are both annular, and the annular axes of the first groove and the second groove are collinear with the axis of the driving roller shaft; the bottom diameter of the first groove is smaller than the bottom diameter of the second groove; The first circular transmission belt is tightened around the first driven roller and the driving roller; each of the first circular transmission belts is respectively arranged in one of the first grooves; The second circular transmission belt is tightened around the second driven roller and the driving roller; each of the second circular transmission belts is respectively arranged in one of the second grooves.

2. The packaging box separation device for a modified atmosphere packaging machine according to claim 1, characterized in that: The first groove and the second groove are spaced apart; and the distances between adjacent first grooves and second grooves are equal.

3. The packaging box separation device for a modified atmosphere packaging machine according to claim 2, characterized in that: It also includes a motor and a belt; the driving roller and the motor are connected through the belt transmission.

4. The packaging box separation device for a modified atmosphere packaging machine according to claim 3, characterized in that: It also includes a shell; the packaging box conveyor belt also includes a steering rod; The steering rod is rotatably fixed on the housing; The driving roller shaft is rotatably fixed on the housing; The motor is fixed on the housing; The first driven roller shaft is rotatably fixed on the housing; The second driven roller shaft is rotatably fixed on the housing; The first circular conveyor belt is arranged in a ring shape around the steering rod; the first circular conveyor belt is tightly attached to the upper end of the steering rod; The first driven roller is coplanar with a horizontal section of the upper end of the steering rod.

5. The packaging box separation device for a modified atmosphere packaging machine according to claim 4, characterized in that: Also included are a first support plate and a second support plate; The first support plate is fixed on the housing; the first support plate is fixed between the steering rod and the first driven roller; the upper plate surface of the first support plate is coplanar with the horizontal section of the upper end of the steering rod; The second support plate is fixed on the shell; the second support plate is fixed between the driving roller and the second driven roller; the upper plate surface of the second support plate is coplanar with the horizontal section of the bottom upper end of the second groove.

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