A packaging film following punching device for a vegetable packaging machine

Abstract

The application relates to a packaging film following punching device for a vegetable packaging machine. The vegetable packaging machine is provided with a conveying channel for conveying the packaging film. One side of the conveying channel is provided with a first support, the first support is slidably connected with a second support through a sliding rail, the second support is provided with a supporting block, and the supporting block is provided with a slot for the packaging film to pass through. The supporting block is connected with a punching rod, and the punching end of the punching rod reciprocates linearly in a direction perpendicular to the surface of the packaging film. The second support is connected with a following driving device through a connecting rod. Through the linear reciprocating movement of the following driving mechanism, the second support linearly reciprocates along the extension direction of the conveying channel, and drives the punching rod to move following the movement of the packaging film, so that the punching rod and the packaging film are in a relatively static state during the movement of the packaging film. After the punching is completed, based on the reciprocating movement of the following driving device, the punching rod is reset and continues to punch following the movement of the packaging film.

Description

Technical Field

[0001] This application relates to the field of vegetable packaging machine technology, and in particular to a packaging film following punching device for vegetable packaging machines. Background Technology

[0002] The vegetable packaging machine includes a packaging film conveying device and a vegetable conveying device. The packaging film conveying device transports the packaging film to the packing table to package the vegetables into bags. During the transportation of the packaging film, it is necessary to punch holes in the film to allow the packaged vegetables to breathe and reduce the rate of spoilage. In existing technology, the packaging bag must be in a stationary state to be punched; otherwise, the punching rod will pull on the packaging film, deforming the punched holes. Therefore, the conveying speed of the packaging film conveying device is slow and inefficient. Utility Model Content

[0003] To address the problems mentioned in the background art, the purpose of this application is to provide a packaging film following and punching device for a vegetable packaging machine. The device includes a vegetable packaging machine with a conveying channel for transporting the packaging film. A first support is provided on one side of the conveying channel, and the first support has a slide rail extending parallel to the extension direction of the conveying channel. A second support is slidably connected to the slide rail, and the second support has a support block with a slot for the packaging film to pass through. A punching rod is connected to the support block, and the punching end of the punching rod reciprocates linearly in a direction perpendicular to the surface of the packaging film.

[0004] The second bracket is connected to a connecting rod, which is connected to a follower drive mechanism. The follower drive mechanism reciprocates linearly along the extension direction of the transport channel.

[0005] Preferably, it also includes a drive device for driving the following drive mechanism. The drive device includes a turntable and a connecting rod. One end of the connecting rod is hinged to the surface of the turntable, and the other end of the connecting rod is hinged to the following drive mechanism. The turntable is connected to a motor.

[0006] Preferably, there are two first supports, which are respectively set on both sides of the transport channel. Each first support is equipped with a slide rail, a second support, a support block and a punching rod. The two slide rails are set on one side of the two first supports in opposite directions, and the two ends of the connecting rod are respectively connected to the two second supports.

[0007] Preferably, the two first supports are connected together to an auxiliary roller, which is located below the packaging film.

[0008] Preferably, the support block has a through hole that extends to one side of the groove, and the punching rod is fitted with the through hole with a clearance.

[0009] Preferably, the punching rod is a telescopic rod.

[0010] Preferably, the support block is connected to a perforated bearing block via a telescopic rod, and the perforated bearing block is connected to the perforating rod.

[0011] In summary, this application includes the following beneficial technical effects: by setting a slide rail on a first bracket and setting a second bracket slidably connected to the slide rail, the punching rod is set on the second bracket. Simultaneously, a connecting rod is connected to the second bracket, and the connecting rod is connected to a following drive mechanism. Under the push of the following drive mechanism and guided by the slide rail parallel to the extension direction of the conveying channel, the second bracket drives the punching rod to move, causing the punching rod to move along with the packaging film, thereby keeping the punching rod and the packaging film in a relatively stationary state during the movement. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention;

[0013] Figure 2 This is an enlarged view of the structure at the first support;

[0014] Figure 3 This is a three-dimensional view of the present invention after incorporating the auxiliary roller.

[0015] Explanation of reference numerals in the attached figures:

[0016] 1. First bracket; 101. Slide rail; 2. Second bracket; 3. Support block; 4. Drilling rod; 5. Connecting rod; 6. Follow-up drive mechanism; 7. Drive device; 701. Turntable; 702. Connecting rod; 8. Auxiliary roller; 9. Drilling bearing block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] The following is in conjunction with the appendix Figure 1-3This application provides a further detailed description. An embodiment of this application discloses a packaging film following and punching device for a vegetable packaging machine. The device includes a vegetable packaging machine (as per existing technology), which has a transport channel for transporting the packaging film to the location of the vegetables for packaging. A first support 1 is provided on one side of the transport channel. The first support 1 has a slide rail 101, the extension direction of which is parallel to the extension direction of the transport channel. A second support 2 is slidably connected to the slide rail 101. The second support 2 is slidably connected to the slide rail 101 via a slider that is slidably connected to the slide rail 101. The sliding connection between the slide rail 101 and the slider can be any existing technology; for example, when the slide rail 101 is a strip-shaped protrusion, the slider is a slider with a groove corresponding to the strip-shaped protrusion. The second support 2 has a support block 3, which has a slot for the packaging film to pass through. A punching rod 4 is connected to the support block 3, and the punching end of the punching rod 4 reciprocates linearly in a direction perpendicular to the surface of the packaging film.

[0019] The second bracket 2 is connected to a connecting rod 5, which in turn is connected to a following drive mechanism 6. The following drive mechanism 6 reciprocates linearly along the extension direction of the transport channel. The punching rod 4 reciprocates linearly onto the surface of the packaging film to create holes. The following drive mechanism 6 drives the second bracket 2 to reciprocate linearly along the extension direction of the transport channel, causing the second bracket 2 to move along with the packaging film. This ensures that the punching rod 4, driven by the following drive mechanism 6, moves along with the packaging film during the punching process, maintaining a relatively stationary position between the punching rod 4 and the packaging film. This prevents the punching area from exceeding the set requirements due to the pulling of the packaging film after punching.

[0020] Furthermore, the following drive mechanism 6 can be the telescopic end of a conventional telescopic drive device 7, such as a cylinder, hydraulic cylinder, or electric cylinder, to achieve linear reciprocating motion through telescopic movement. In this embodiment, it also includes a method for implementing the following drive mechanism 6 when it does not have an active movement function. This includes a drive device 7 that drives the following drive mechanism 6. The drive device 7 includes a turntable 701 and a connecting rod 702. One end of the connecting rod 702 is hinged to the surface of the turntable 701, and the other end of the connecting rod 702 is hinged to the following drive mechanism 6. A motor is connected to the turntable 701. The turntable 701 is driven to rotate by a motor. Under the drive of the connecting rod 702, the rotation of the turntable is converted into linear motion of the following drive mechanism 6. The hinge point between the connecting rod 702 and the turntable can determine the radius of the hinge point relative to the turntable. Based on the cyclic rotation of the turntable, the hinge point between the connecting rod 702 and the turntable moves in a circular cycle around the center of the turntable. After the transmission and conversion by the connecting rod 702, the following drive mechanism 6 can cyclically extend and reciprocate linearly within a specific linear motion distance, thereby achieving precise control of the extension and retraction distance of the following drive mechanism 6.

[0021] Furthermore, to enable perforation of the packaging film on both sides of the transport channel, two first supports 1 are provided, each positioned on one side of the transport channel. Each first support 1 is equipped with a slide rail 101, a second support 2, a support block 3, and a perforation rod 4. The two slide rails 101 are positioned on opposite sides of the two first supports 1, ensuring that the second support 2, support block 3, and perforation rod 4 connected to the two first supports 1 are located between them. This ensures that each first support 1 on both sides of the transport channel is equipped with a perforation rod 4. The number of perforation rods 4 corresponding to the two first supports 1 can be the same or different, and their positions can be corresponding or non-corresponding, thus achieving various perforation effects. Simultaneously, the two ends of the connecting rod 5 are connected to the two second supports 2, allowing the linear reciprocating motion of the follow-drive mechanism 6 to simultaneously drive the two second supports 2 to reciprocate linearly along the extension direction of the slide rail 101. This enables the perforation rods 4 corresponding to the two second supports 2 to synchronously reciprocate linearly along the extension direction of the transport channel. Figure 1 In the illustrated embodiment, each first bracket 1 is connected to a second bracket 2, each second bracket 2 is connected to two support blocks 3, and each support block 3 is connected to a punching rod 4, thus each first bracket 1 is connected to two punching rods 4. Figure 1 In the embodiment shown, the two first brackets 1 are symmetrically arranged, but they can also be arranged asymmetrically according to actual needs, and the number of punch rods 4 can also be asymmetrically arranged according to actual needs.

[0022] Furthermore, the two first supports 1 are connected together with auxiliary rollers 8. The auxiliary rollers 8 are located below the packaging film and are used to support the packaging film. They are usually set at the entrance where the packaging film enters the slot of the support block 3, or at the exit where the packaging film is transported out of the slot. Auxiliary rollers 8 can also be set on both sides of the slot, i.e. at the entrance where the packaging film enters the slot and at the exit where the packaging film leaves the slot.

[0023] Furthermore, the punching rod 4 can be connected to any position on the support block 3. To ensure the punching effect, the punching end of the punching rod 4 should ideally have a supporting surface after moving towards the upper surface of the packaging film. For this purpose, the support block 3 has a through hole extending through to the slot of the support block 3, with the punching rod 4 fitting into the through hole with a clearance fit. By opening a through hole on one side of the slot, the punching end of the punching rod 4 passes through the through hole and contacts the packaging film inside the slot to punch a hole, subsequently being held in place by the other side of the slot where no through hole is opened. Furthermore, the other side of the slot where no through hole is opened can be provided with a groove corresponding to the punching end of the punching rod 4, which enhances the punching effect while simultaneously holding the punching end of the punching rod 4 in place.

[0024] Furthermore, to achieve the technical effect of the punching end of the punching rod 4 reciprocating linearly in a direction perpendicular to the surface of the packaging film, the punching rod 4 can be a telescopic rod. For example, a conventional telescopic drive device 7, such as a cylinder or hydraulic cylinder, can be connected to the support block 3, and the punching rod 4 can be connected to the telescopic rod of the telescopic drive device 7, or the telescopic rod of the telescopic drive device 7 can be directly used as the punching rod 4.

[0025] Furthermore, since the punching end of the punching rod 4 is continuously subjected to force during the cyclic punching process, if the punching rod 4 itself is a telescopic rod, the telescopic distance or direction may change after long-term use due to mechanical fatigue, aging, damage, etc. The support block 3 is connected to the punching bearing block 9 via a telescopic rod. The punching bearing block 9 is fixedly connected to the punching rod 4. The telescopic movement of the punching bearing block 9 drives the telescopic movement of the punching rod 4, making the punching rod 4 more stable. The support block 3 can be connected to a telescopic drive device 7, which is connected to the bearing block via a telescopic rod. The telescopic drive device 7 drives the telescopic movement of the punching bearing block 9. In this embodiment, the telescopic drive device 7 controlling the telescopic movement of the punching rod 4 is directly used as the punching bearing block 9. The telescopic rod of the telescopic drive device 7, which serves as the punching bearing block 9, is connected to the support block 3. The telescopic movement of the punching bearing block 9 itself drives the telescopic movement of the punching rod 4, achieving the punching effect. Specifically, the telescopic drive device 7 serving as the punching bearing block 9 can be a conventional existing technology such as a cylinder or hydraulic cylinder. Therefore, the punching rod 4 can be either a telescopic rod capable of linear reciprocating motion by extension or retraction, or its linear reciprocating motion can be controlled by a telescopic drive device 7 such as a cylinder.

[0026] Furthermore, since the packaging film typically consists of two surfaces during transport, the punching rod 4 can be connected to the upper or lower part of the support block 3 as needed. Moreover, when the two surfaces of the packaging film are transported in a different orientation than vertically, the connection position of the punching rod 4 with the support block 3 can be changed as needed, as long as the punching rod 4 can reciprocate linearly towards the surface of the packaging film to punch holes.

[0027] Working Principle: The first support 1 is positioned on one side of the conveying channel, and the packaging film is manually pulled through the slot of the support block 3. The motion control devices of the punching rod 4 and the follower drive mechanism 6 are electrically connected to the processing core of the vegetable packaging machine and time-matched to ensure that the punching rod 4 and the packaging film move synchronously at the moment the punching rod 4 contacts the packaging film to punch a hole. After setting the motion mode of the punching rod 4 and the follower drive mechanism 6, the conveying function of the packaging film is activated. During the process of the packaging film passing through the slot of the support block 3, the follower drive mechanism 6 moves forward, pushing the second support 2 to move with the packaging film, so that the punching rod 4 moves with the packaging film, thereby making the punching rod 4 and the packaging film relatively stationary. Then, the punching end of the punching rod 4 moves towards the packaging film to punch a hole. After punching is completed, the punching rod 4 resets, and then the follower drive mechanism 6 moves backward to retract, driving the punching rod 4 back to the next punching position. This cycle repeats to achieve cyclic punching of the packaging film.

[0028] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this application, and all such substitutions or changes should fall within the protection scope of the appended claims.

Claims

1. A packaging film following punching device for a vegetable packaging machine, comprising a vegetable packaging machine, the vegetable packaging machine being provided with a conveying channel for conveying the packaging film, characterized in that, A first support (1) is provided on one side of the transport channel. The first support (1) is provided with a slide rail (101). The extension direction of the slide rail (101) is parallel to the extension direction of the transport channel. The slide rail (101) is slidably connected to a second support (2). The second support (2) is provided with a support block (3). The support block (3) has a slot for the packaging film to pass through. The support block (3) is connected to a punching rod (4). The punching end of the punching rod (4) moves back and forth in a straight line in a direction perpendicular to the surface of the packaging film. The second bracket (2) is connected to a connecting rod (5), and the connecting rod (5) is connected to a following drive mechanism (6), which reciprocates linearly along the extension direction of the transport channel.

2. The packaging film punching device for a vegetable packaging machine according to claim 1, characterized in that, It also includes a drive device (7) for driving the following drive mechanism (6), the drive device (7) includes a turntable (701) and a connecting rod (702), one end of the connecting rod (702) is hinged to the surface of the turntable (701), the other end of the connecting rod (702) is hinged to the following drive mechanism (6), and the turntable (701) is connected to a motor.

3. The packaging film perforation device for a vegetable packaging machine according to claim 1, characterized in that, There are two first brackets (1), which are respectively set on both sides of the transport channel. Each of the two first brackets (1) is provided with a slide rail (101), a second bracket (2), a support block (3) and a punching rod (4). The two slide rails (101) are set on one side of the two first brackets (1) in opposite directions. The two ends of the connecting rod (5) are respectively connected to the two second brackets (2).

4. The packaging film punching device for a vegetable packaging machine according to claim 3, characterized in that, The two first supports (1) are connected together to an auxiliary roller (8), which is located below the packaging film.

5. The packaging film punching device for a vegetable packaging machine according to claim 1, characterized in that, The support block (3) has a through hole that extends to one side of the slot, and the punching rod (4) is in clearance fit with the through hole.

6. The packaging film punching device for a vegetable packaging machine according to claim 1, characterized in that, The punch rod (4) is a telescopic rod.

7. The packaging film punching device for a vegetable packaging machine according to claim 1, characterized in that, The support block (3) is connected to a perforated bearing block (9) via a telescopic rod, and the perforated bearing block (9) is connected to the perforated rod (4).

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