Empty bag removing mechanism of bag feeding type packaging machine

Abstract

The utility model discloses an empty bag removing mechanism of a bag feeding type packaging machine, which relates to the technical field of packaging machines and comprises a machine body frame, a turntable device is fixedly mounted at the top of the machine body frame, a machine clamping station for clamping packaging bags is arranged in the circumferential direction of the turntable device, and a detection unit for detecting empty bags is arranged on one side of the turntable device. A bag shifting unit used for removing empty bags is arranged on one side of the detection unit, and the detection unit and the bag shifting unit are arranged below the corresponding machine clamping stations respectively. Through cooperation of the elastic plate and the inductive sensor, whether products exist in packaging bags passing through a bag passing area or not can be detected, when it is detected that the packaging bags are empty, the connecting plate can be pushed to rotate through work of the air cylinder, when the connecting plate rotates, the poking rod can be driven to poke outwards through the rotating shaft and the connecting block, and the empty bags are knocked down and removed through the poking rod; the problem that time and labor are wasted due to the fact that empty bags need to be manually sorted in a follow-up assembly line is solved, and meanwhile certain labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machines, in particular to an empty bag removing mechanism for a bag-type packaging machine. Background Art

[0002] A packaging machine is a type of machine that packages products, playing a role in protection and aesthetics. Packaging machines are mainly divided into two aspects: one is the overall production packaging in a production line; the other is the peripheral packaging equipment for products. There are many types of packaging machines and various classification methods. According to the packaging stations, there are single-station and multi-station packaging machines, etc.

[0003] At present, when the existing bag-type packaging machines are at the item bagging station, whether it is manual or automatic, it is possible that the items are not smoothly put into the bags within a specific time, resulting in empty bags when the bags are transferred to the next station. Therefore, the empty bags without items may also enter the next link along with the production line. For example, in the product sub-packaging process, before the final boxing, it is necessary to manually pick out the empty bags, which increases the labor cost and is also time-consuming and laborious for manual operation. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an empty bag removing mechanism for a bag-type packaging machine to solve the problems put forward in the above background art.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] An empty bag removing mechanism for a bag-type packaging machine includes a machine body frame. A turntable device is fixedly installed at the top of the machine body frame. A machine clip station for clamping packaging bags is arranged in the circumferential direction of the turntable device. And a detection unit for detecting empty bags is arranged on one side of the turntable device. A bag pushing unit for removing empty bags is arranged on one side of the detection unit. The detection unit and the bag pushing unit are respectively arranged below the corresponding machine clip stations;

[0007] The detection unit includes two symmetrically arranged fixed support plates. And an elastic plate located between the two fixed support plates is connected to one of the fixed support plates. And an induction sensor for sensing the elastic plate is installed at one end of one of the fixed support plates;

[0008] The bag pushing unit includes a stabilizing plate connected to the machine body frame. A rotating shaft is rotatably connected to the top of the stabilizing plate. A bag pushing rod for removing empty bags is fixedly connected to the outer wall of the rotating shaft. And a driving component for driving the rotating shaft to rotate is arranged at one end of the rotating shaft.

[0009] Preferably, the driving component includes a connecting plate fixedly connected to one end of the rotating shaft. One end of the connecting plate is movably connected to the output end of a cylinder. The cylinder is movably installed on the stabilizing plate.

[0010] Preferably, the lever includes a transverse rod and a longitudinal rod, and the longitudinal rod is fixedly connected to one end of the transverse rod.

[0011] Preferably, a connecting block is fixedly connected to the outer wall of the transverse rod, and one end of the connecting block is fixedly connected to the rotating shaft.

[0012] Preferably, the detection unit further includes a bracket fixedly connected to the body frame, and two fixed support plates are respectively fixedly connected to the bracket.

[0013] Preferably, the two fixed support plates respectively include a longitudinal plate and a horizontal plate. The horizontal plate is fixedly connected to the top of the longitudinal plate, and an inverted V-shaped through opening is formed between the two horizontal plates. The elastic plate is arranged in the inverted V-shaped through opening.

[0014] Preferably, both the elastic plate and the induction sensor are arranged on one of the horizontal plates, and the elastic plate divides the inverted V-shaped through opening into a bag passing area and an induction area. One end of the induction sensor corresponds to the induction area.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is as follows:

[0016] The present utility model provides an empty bag removing mechanism for a bag-feeding packaging machine, which solves the problem that there are empty bags in the existing subsequent production line and manual sorting is time-consuming and laborious. Through the cooperation of the elastic plate and the induction sensor, it is possible to detect whether there is a product in the packaging bag passing through the bag passing area. When it is detected that the bag is empty, the cylinder can push the connecting plate to rotate through its operation. When the connecting plate rotates, it can drive the lever to move outward through the rotating shaft and the connecting block, so as to realize that the lever knocks down and removes the empty bag, solve the problem that there are empty bags in the subsequent production line and manual sorting is time-consuming and laborious, and also reduce a certain amount of labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the structure of the detection unit of the present utility model;

[0019] Figure 3 is a schematic diagram of the structure of the bag dialing unit of the present utility model.

[0020] In the figure: 1, body frame; 2, turntable device;

[0021] 3, detection unit; 31, fixed support plate; 311, longitudinal plate; 312, horizontal plate; 32, elastic plate; 33, induction sensor; 34, bracket;

[0022] 4. Bag Pushing Unit; 41. Stabilizing Plate; 42. Rotating Shaft; 43. Pushing Rod; 431. Transverse Rod; 432. Longitudinal Rod

[0023] 5. Connecting Plate; 6. Cylinder; 7. Connecting Block Detailed Embodiment

[0024] The present utility model will be further described in detail below in conjunction with embodiments:

[0025] As Figures 1-3 shown, the present utility model provides an empty bag removing mechanism for a bag - feeding packaging machine, including a machine body frame 1. A turntable device 2 is fixedly installed at the top of the machine body frame 1. A machine clip station for clamping packaging bags is arranged in the circumferential direction of the turntable device 2. And a detection unit 3 for detecting empty bags is arranged on one side of the turntable device 2. A bag pushing unit 4 for removing empty bags is arranged on one side of the detection unit 3. The detection unit 3 and the bag pushing unit 4 are respectively arranged below the corresponding machine clip stations;

[0026] The detection unit 3 includes two symmetrically arranged fixed support plates 31. An elastic plate 32 located between the two fixed support plates 31 is connected to one of the fixed support plates 31. And an induction sensor 33 for sensing the elastic plate 32 is installed at one end of one of the fixed support plates 31;

[0027] The bag pushing unit 4 includes a stabilizing plate 41 connected to the machine body frame 1. A rotating shaft 42 is rotatably connected to the top of the stabilizing plate 41. An outer wall of the rotating shaft 42 is fixedly connected with a pushing rod 43 for removing empty bags. And a driving component for driving the rotating shaft 42 to rotate is arranged at one end of the rotating shaft 42.

[0028] Further, the driving component includes a connecting plate 5 fixedly connected to one end of the rotating shaft 42. One end of the connecting plate 5 is movably connected to an output end of a cylinder 6. The cylinder 6 is movably installed on the stabilizing plate 41. The pushing rod 43 includes a transverse rod 431 and a longitudinal rod 432. The longitudinal rod 432 is fixedly connected to one end of the transverse rod 431. An outer wall of the transverse rod 431 is fixedly connected with a connecting block 7. One end of the connecting block 7 is fixedly connected to the rotating shaft 42.

[0029] Specifically, through the operation of the cylinder 6, the cylinder 6 can drive the rotating shaft 42 to rotate through the connecting plate 5. Then, after the rotating shaft 42 rotates, it can drive the connecting block 7 and the pushing rod 43 to rotate, realizing the removal of empty bags when the pushing rod 43 rotates.

[0030] Further, as Figure 2 shown, the detection unit 3 further includes a bracket 34 fixedly connected to the machine body frame 1. The two fixed support plates 31 are respectively fixedly connected to the bracket 34. With the design of the bracket 34, the stability of the detection unit 3 is ensured.

[0031] Furthermore, the two fixed support plates 31 respectively include a longitudinal plate 311 and a horizontal plate 312. The horizontal plate 312 is fixedly connected to the top of the longitudinal plate 311, and an inverted V-shaped through opening is formed between the two horizontal plates 312. The elastic plate 32 is arranged in the inverted V-shaped through opening. Both the elastic plate 32 and the induction sensor 33 are arranged on one horizontal plate 312, and the elastic plate 32 divides the inverted V-shaped through opening into a bag passing area and an induction area. One end of the induction sensor 33 corresponds to the induction area.

[0032] Specifically, the two fixed support plates 31 have the same height, and the elastic plate 32 is a flexible elastic sheet. When the elastic sheet is squeezed by an object, it can displace and deflect, thereby enabling the induction sensor 33 to sense the position change of the elastic plate 32, so as to detect whether the packaging bag is an empty bag.

[0033] More specifically, the empty bag removing mechanism of the bag-feeding packaging machine further includes a control device. The control device is used to receive the detection signal of the induction sensor 33 and control the operation of the cylinder 6 according to whether the detection signal is received, so as to realize that when it is determined that the packaging bag is an empty bag, the empty bag can be removed.

[0034] It should be noted that this solution only protects the physical structure and does not involve the protection of software and systematic equipment. Moreover, the control device proposed in this solution is an existing publicly known technology, which is well-known and operated by those skilled in the art. Thus, in cooperation with the physical structure to be protected by this solution, the removal of empty bags can be achieved. For this reason, the system of the control device is not elaborated in detail in this solution.

[0035] Next, the working principle of the empty bag removing mechanism of the bag-feeding packaging machine will be specifically described.

[0036] As Figures 1-3As shown in the figure, when the working turntable device 2 of the packaging machine rotates, multiple clamping stations can hold the packaging bags in sequence to perform the processes of bag mouth opening, adding items into the bags, and heat-sealing the bag mouths. The detection unit 3 is arranged at the position where the packaging bags enter the heat-sealing station, and the bag pushing unit 4 is arranged below the heat-sealing station. Therefore, when the packaging bags rotate with the turntable device 2, the packaging bags can pass through the bag passing area at the eight-shaped through-port. When there are items in the packaging bags during passing, the packaging bags can push the elastic plate 32 to move outward, so that the elastic plate 32 moves outward and touches the induction sensor 33. Thus, when the induction sensor 33 receives the signal, it is determined that there is a product in the bag, and the cylinder 6 will not work; on the contrary, when there is no product in the packaging bag passing through the bag passing area, the elastic plate 32 will not move outward. Therefore, when the induction sensor 33 does not receive the signal, it is determined that the packaging bag is an empty bag. Furthermore, when the empty bag rotates to the position of the bag pushing unit 4, the work of the cylinder 6 can push the connecting plate 5 to rotate. When the connecting plate 5 rotates, it can drive the rotating shaft 42 to rotate. After the rotating shaft 42 rotates, it drives the lever 43 to move outward through the connecting block 7. Thus, the lever 43 knocks down and removes the empty bag, solving the problem that there are empty bags in the subsequent production line that need to be manually sorted, which is time-consuming and laborious.

[0037] It should be noted that in the description of the present disclosure, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

[0038] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, the modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An empty bag rejection mechanism for a bag - feeding packaging machine, characterized in that: It includes a machine body frame, on the top of which a turntable device is fixedly installed. A machine clamp station for clamping packaging bags is arranged in the circumferential direction of the turntable device. And on one side of the turntable device, there is a detection unit for detecting empty bags. On one side of the detection unit, there is a bag-pushing unit for removing empty bags. The detection unit and the bag-pushing unit are respectively arranged below the corresponding machine clamp stations. The detection unit includes two symmetrically arranged fixed support plates. And on one of the fixed support plates, there is an elastic plate located between the two fixed support plates. And at one end of one of the fixed support plates, there is an induction sensor for sensing the elastic plate. The bag-pushing unit includes a stable plate connected to the machine body frame. On the top of the stable plate, a rotating shaft is rotatably connected. On the outer wall of the rotating shaft, there is a bag-pushing rod for removing empty bags. And at one end of the rotating shaft, there is a driving component for driving the rotating shaft to rotate.

2. The empty bag rejection mechanism of a bag - feeding packaging machine according to claim 1, characterized in that: The driving component includes a connecting plate fixedly connected to one end of the rotating shaft. One end of the connecting plate is movably connected to the output end of a cylinder. The cylinder is movably installed on the stable plate.

3. The empty bag rejection mechanism of a bag-feeding packaging machine according to claim 1, characterized in that: The bag-pushing rod includes a transverse rod and a longitudinal rod. The longitudinal rod is fixedly connected to one end of the transverse rod.

4. The empty bag rejection mechanism of a bag - feeding packaging machine according to claim 3, characterized in that: On the outer wall of the transverse rod, there is a connecting block. One end of the connecting block is fixedly connected to the rotating shaft.

5. The empty bag rejection mechanism of a bag - feeding packaging machine according to claim 1, characterized in that: The detection unit further includes a bracket fixedly connected to the machine body frame. The two fixed support plates are respectively fixedly connected to the bracket.

6. The empty bag rejection mechanism of a bag-feeding packaging machine according to claim 1, characterized in that: The two fixed support plates respectively include a longitudinal plate and a horizontal plate. The horizontal plate is fixedly connected to the top of the longitudinal plate. And between the two horizontal plates, there is an eight-shaped through opening formed. The elastic plate is arranged in the eight-shaped through opening.

7. The empty bag rejection mechanism of a bag-feeding packaging machine according to claim 6, characterized in that: The elastic plate and the induction sensor are both arranged on one of the horizontal plates. And the elastic plate divides the eight-shaped through opening into a bag-passing area and an induction area. One end of the induction sensor corresponds to the induction area.

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