A new type of bag sealing mechanism for a bagging machine

Abstract

The present invention discloses a bag sealing mechanism for a new type of bagging machine. A first rotating shaft is arranged at a position near the front end of the bagging machine frame. A fork plate is fixedly connected to the first rotating shaft. A second rotating shaft is arranged on one side of the first rotating shaft. A cam for driving the fork plate to rotate around the first rotating shaft is arranged on the second rotating shaft. The second rotating shaft is driven by a driving device. A bag sealing assembly is arranged at the front end of the frame. The bag sealing assembly approaches or separates from the fork plate under the drive of the driving device. A bag sealing interval for the fork plate to insert to close the bag mouth is arranged on the bag sealing assembly. The bag sealing mechanism of the new type of bagging machine of the present invention creatively arranges the fork plate and the bag sealing assembly to be able to approach or separate from each other, effectively avoiding the problem that the opening edges of the front and back sides of the paper bag are misaligned when the paper bag is sealed by unilateral pushing, thereby improving the sealing quality.

Description

Technical Field

[0001] The present invention relates to the technical field of young fruit bagging equipment, and particularly to a bag sealing mechanism of a novel bagging machine. Background Art

[0002] Young fruit bagging is mainly to prevent fruits from being invaded by birds, damaged by pests and diseases, and damaged by wind, rain and sunlight during the growth process. At the same time, after the fruits are bagged, it can effectively isolate the erosion of environmental pollution on the fruits and prevent the fruits from being scratched by tree branches during the growth process. The bagging can produce a local greenhouse effect, keep the fruits at an appropriate humidity and temperature, improve the sweetness of the fruits, improve the luster of the fruits, increase the yield of the fruits, and shorten their growth period. At the same time, since pesticides are not required during the growth process, the fruits have high quality and are pollution-free, meeting international standards.

[0003] Due to the complex environment of the fruit forest and the dense and uneven branches of the fruit trees, fruit farmers have mainly used traditional manual bagging when bagging fruits. Traditional manual bagging is time-consuming and laborious, with low efficiency, and the quality of the bagging varies. In order to improve the bagging efficiency, ensure the bagging quality, and reduce the labor intensity of manual bagging, bagging machines have emerged on the market. The bag sealing mechanisms of existing bagging machines generally adopt single-sided bag sealing, that is, the opening of the paper bag is directly bent and sealed from one side to the other side, and the fork plate on the bagging machine remains stationary, which will cause the edges of the bag mouth on the front and back sides of the bag to be misaligned during the bag mouth closing process, affecting the bag sealing quality. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the drawback that the edges of the bag mouth on the front and back sides of the bag are misaligned during the bag sealing process of the existing bagging machine, which affects the bag sealing quality, and further provide a bag sealing mechanism of a novel bagging machine.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A bag sealing mechanism of a novel bagging machine, a first rotating shaft is arranged at a position close to the front end of the bagging machine frame, a fork plate is fixedly connected to the first rotating shaft, a second rotating shaft is arranged on one side of the first rotating shaft, a cam for driving the fork plate to rotate around the first rotating shaft is arranged on the second rotating shaft, and the second rotating shaft is driven by a driving device; a bag sealing assembly is arranged at the front end of the frame, the bag sealing assembly is close to or away from the fork plate under the drive of the driving device, and a bag sealing interval for the fork plate to insert to close the bag mouth is arranged on the bag sealing assembly.

[0007] Preferably, the bag sealing assembly includes a swing arm hinged to the front end of the frame, two bag sealing rollers arranged in parallel at intervals are arranged on the swing arm, the interval between the two bag sealing rollers is the bag sealing interval, and the driving device drives the swing arm to rotate through a plurality of gears fixedly arranged on the frame.

[0008] Preferably, the cam as a whole is in a fan-shaped structure with a rounded central angle.

[0009] Preferably, the driving device is a motor, which drives the second rotating shaft to rotate through a synchronous belt, and a driving wheel is provided on the second rotating shaft. The driving wheel drives the swing arm to rotate through a first driven wheel, a second driven wheel, and a third driven wheel that are sequentially meshed and fixed on the frame, and the swing arm is fixedly connected to one side of the third driven wheel.

[0010] Preferably, a shifting block is fixedly connected to the second rotating shaft, and the shifting block is used to shift and separate the clamping part for clamping the paper bag on the bag feeding mechanism of the bagging machine to release the paper bag.

[0011] Preferably, one shifting block is respectively provided at a position of the second rotating shaft facing the two sides of the folding paper bag.

[0012] Preferably, one driving device is respectively provided on both sides of the second rotating shaft, and the two driving devices rotate synchronously.

[0013] Preferably, two swing arms are provided, and the two swing arms are respectively hinged on both sides of the frame, and two strip-shaped through holes are arranged at intervals on each swing arm, and the two bag sealing rollers are respectively arranged in the corresponding strip-shaped through holes through fastening nuts.

[0014] Beneficial effects of the present invention:

[0015] The novel bagging machine bag sealing mechanism of the present invention creatively sets the fork plate and the bag sealing assembly to be able to approach or move away from each other. When sealing the bag, the fork plate holds the paper bag from the lower side and moves toward the side of the bag sealing assembly. At the same time, the bag sealing assembly drives the upper side of the paper bag to move toward the side of the support plate. Finally, the fork plate pushes the part of the paper bag near the opening into the bag sealing interval to close the bag opening. This effectively avoids the problem of misalignment of the opening edges on the front and back sides of the paper bag when the paper bag is pushed unilaterally to seal, thereby improving the sealing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings, wherein:

[0017] Figure 1 It is a structural schematic diagram of the new bagging machine sealing mechanism of the present invention installed on the bagging machine;

[0018] Figure 2 It is a structural schematic diagram of the bag sealing mechanism of the novel bagging machine of the present invention;

[0019] Figure 3 is a schematic structural diagram of the bag sealing assembly of the present invention;

[0020] Figure 4 It is a schematic structural diagram of each component installed on the second rotating shaft of the present invention.

[0021] In the figure, the reference numerals are represented as:

[0022] 100 - Frame; 1 - First rotating shaft; 2 - Fork plate; 3 - Second rotating shaft; 4 - Cam; 41 - Straight side surface; 42 - Arc surface; 5 - Bag sealing assembly; 50 - Bag sealing interval; 51 - Swing arm; 52 - Bag sealing roller; 6 - Synchronous belt; 7 - Driving wheel; 8 - First driven wheel; 9 - Second driven wheel; 10 - Third driven wheel; 11 - Pusher block; 12 - Strip-shaped through hole; 13 - Fastening nut. Specific embodiments

[0023] See Figures 1-4 , a bag sealing mechanism of a new type of bagging machine. A first rotating shaft 1 is arranged at a position close to the front end of the frame 100 of the bagging machine. A fork plate 2 is fixedly connected to the first rotating shaft 1. A second rotating shaft 3 is arranged on one side of the first rotating shaft 1. A cam 4 for driving the fork plate 2 to rotate around the first rotating shaft 1 is arranged on the second rotating shaft 3. The second rotating shaft 3 is driven by a driving device; a bag sealing assembly 5 is arranged at the front end of the frame 100. The bag sealing assembly 5 approaches or separates from the fork plate 2 under the drive of the driving device. A bag sealing interval 50 for the fork plate 2 to insert to seal the bag opening is arranged on the bag sealing assembly 5. The bag sealing mechanism of the new type of bagging machine of the present invention creatively arranges the fork plate and the bag sealing assembly to be able to approach or separate from each other. When sealing the bag, the fork plate holds the paper bag from the lower side surface of the paper bag and moves it towards the bag sealing assembly. At the same time, the bag sealing assembly drives the upper side surface of the paper bag to move towards the pallet side. Finally, the fork plate pushes the opening of the paper bag near the opening into the bag sealing interval to seal the bag opening of the paper bag, thus effectively avoiding the problem of misalignment of the opening edges of the front and back sides of the paper bag when sealing the paper bag unilaterally, and further improving the sealing quality.

[0024] See Figure 3 , in this embodiment, the bag sealing assembly 5 includes a swing arm 51 hinged to the front end of the frame. Two bag sealing rollers 52 arranged in parallel at intervals are arranged on the swing arm 51. The interval between the two bag sealing rollers 52 is the bag sealing interval 50. The driving device drives the swing arm 51 to rotate through a plurality of gears fixedly arranged on the frame 100, so that the bag sealing roller approaches or separates from the fork plate.

[0025] See Figure 4In this embodiment, the cam 4 is a sector-shaped structure with rounded corners at the center of the circle. The wheel surface of the cam is an arc surface 42. When the straight side surface 41 of the cam 4 is initially in contact with the fork plate 2, when the cam 4 rotates with the second shaft, the straight side surface 41 gradually pushes the fork plate to move closer to or away from the bag sealing roller. When the arc surface 42 on the cam 4 contacts the fork plate, the cam no longer pushes the fork plate to rotate. Of course, in order to make the contact between the fork plate and the cam stable, a torsion spring can be set on the first shaft to drive the fork plate to elastically contact with the cam.

[0026] In this embodiment, the driving device is a motor, and the motor drives the second rotating shaft 3 to rotate through a synchronous belt 6. A driving wheel 7 is provided on the second rotating shaft 3. The driving wheel 7 drives the swing arm 51 to rotate through the first driven wheel 8, the second driven wheel 9, and the third driven wheel 10 that are sequentially meshed and fixed on the frame 100. The swing arm 51 is fixedly connected to the outer side surface of the third driven wheel 10, and the inner side surface of the third driven wheel 10 is in contact with the frame.

[0027] In this embodiment, a shifting block 11 is fixedly connected to the second rotating shaft 3, and the shifting block 11 is used to shift and separate the clamping part for clamping the paper bag on the bag feeding mechanism of the bagging machine to release the paper bag. The shifting block 11 rotates with the second rotating shaft 3. The second rotating shaft 3 is provided with a shifting block at a position directly opposite to the folded edges of the two sides of the folded paper bag, so as to shift and separate the two clamping parts on the two sides of the bag feeding mechanism at the same time.

[0028] In this embodiment, one driving device is respectively disposed on both sides of the second rotating shaft 3, and the two driving devices rotate synchronously to improve the stability of the bag sealing mechanism.

[0029] In this embodiment, two swing arms 51 are provided, and the two swing arms 51 are respectively hinged on both sides of the frame 100, and two strip-shaped through holes 12 are arranged at intervals on each swing arm 51. The two bag sealing rollers 52 are respectively arranged in the corresponding strip-shaped through holes 12 through fastening nuts 13. The mounting holes of the bag sealing rollers are arranged as strip-shaped holes, which is convenient for adjusting the interval between the two bag sealing rollers and facilitating the installation of the bag sealing rollers.

[0030] The above specific implementation methods are only detailed explanations of the technical solutions of the present invention. The present invention is not limited to the above embodiments. Those skilled in the art should understand that any improvements and substitutions based on the above principles and spirits on the basis of the present invention should be within the protection scope of the present invention.

Claims

1. A bag sealing mechanism for a new type of bagging machine, characterized in that: A first rotating shaft is arranged near the front end of the bagging machine frame, a fork plate is fixedly connected to the first rotating shaft, a second rotating shaft is arranged on one side of the first rotating shaft, a cam is arranged on the second rotating shaft to drive the fork plate to rotate around the first rotating shaft, and the second rotating shaft is driven by a driving device; a bag sealing assembly is arranged at the front end of the frame, and the bag sealing assembly approaches or moves away from the fork plate under the drive of the driving device, and a bag sealing interval is arranged on the bag sealing assembly for the fork plate to be inserted to close the bag opening; the bag sealing assembly includes a swing arm hinged at the front end of the frame, two bag sealing rollers arranged in parallel and spaced apart are arranged on the swing arm, and the interval between the two bag sealing rollers is the bag sealing interval, and the driving device drives the swing arm to rotate through a number of gears fixedly arranged on the frame; the driving device is a motor, and the motor drives the second rotating shaft to rotate through a synchronous belt; The cam as a whole is a fan-shaped structure with a rounded central angle, and the wheel surface of the cam is an arc surface. Initially, the straight side surface of the cam is in contact with the fork plate. When the cam rotates along with the second rotating shaft, the straight side surface gradually pushes the fork plate toward or away from the bag sealing roller. When the arc surface on the cam conflicts with the fork plate, the cam stops pushing the fork plate to rotate.

2. The bag sealing mechanism of the novel bagging machine according to claim 1, characterized in that: A shifting block is fixedly connected to the second rotating shaft, and the shifting block is used to shift and separate the clamping part for clamping the paper bag on the bag feeding mechanism of the bagging machine to release the paper bag.

3. The bag sealing mechanism of the new bagging machine according to claim 2, characterized in that: A shifting block is respectively arranged at the positions of the second rotating shaft facing the two sides of the folding paper bag.

4. The bag sealing mechanism of the new bagging machine according to claim 3, characterized in that: One driving device is respectively arranged on both sides of the second rotating shaft, and the two driving devices rotate synchronously.

5. The bag sealing mechanism of the novel bagging machine according to claim 4, characterized in that: There are two swing arms, which are hinged on both sides of the frame respectively. Two strip-shaped through holes are arranged at intervals on each swing arm, and the two bag sealing rollers are arranged in the corresponding strip-shaped through holes respectively through fastening nuts.

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