A single-station bag feeder with a zipper bag for powdery materials

Abstract

The present invention provides a single-station bag feeder for open zipper bags suitable for powder materials, mainly including a machine shell, a main frame, an open zipper bag mechanism, and a filling mechanism. The open zipper bag mechanism and the filling mechanism are both movably installed on the main frame. A sealing plate is provided at the feed inlet at the upper end of the filling mechanism, and the sealing plate extends towards the open zipper bag mechanism side. When the filling mechanism switches to the open zipper bag mechanism, the sealing plate closely fits and slides with the discharge port of the filling equipment. The beneficial effects of the present invention are as follows: By providing a sealing plate on the filling mechanism, when the filling mechanism switches to the open zipper bag mechanism, the sealing plate will cover the feeding port of the filling equipment, effectively preventing the powder remaining on the hopper wall of the filling equipment from falling on the machine, thereby ensuring that the powder here does not pollute the environment and the machine and extending the service life of the machine.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging machinery, and particularly to an open zipper bag single-station bag feeder suitable for powder materials. Background Art

[0002] In the environment of powder packaging, there are usually relatively large amounts of dust, causing environmental pollution. The main pollution source is that the powder residues on the hopper wall of the filling equipment during filling fall on the machine. The powder falling on the machine will not only cause dust flying, but also the dust entering the moving positions of the machine will affect the movement of the machine, thus affecting the normal operation of the equipment. The method adopted in the market is to set a dust suction mechanism on the machine. Although the dust suction mechanism can suck away part of the dust, there is still a large amount of dust attached to the machine, affecting the machine, and the dust suction mechanism increases the production cost of the machine and also increases the operation cost of the machine. Summary of the Invention

[0003] The present invention aims to provide a solution to the problem of dust flying from the source.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An open zipper bag single-station bag feeder suitable for powder materials mainly includes a machine shell, a main frame, an open zipper bag mechanism, and a filling mechanism. The open zipper bag mechanism and the filling mechanism are both movably installed on the main frame. A sealing plate is provided at the feed inlet at the upper end of the filling mechanism, and the sealing plate extends towards the open zipper bag mechanism side. When the filling mechanism switches to the open zipper bag mechanism, the sealing plate closely fits and slides with the discharge outlet of the filling equipment.

[0006] Preferably, the sealing plate is of an integral structure with the feed inlet of the filling mechanism, and the surface of the sealing plate is a smooth plane.

[0007] Preferably, the open zipper bag mechanism and the filling mechanism are fixedly installed on a mounting plate, and a linear module is provided between the mounting plate and the main frame to drive the open zipper bag mechanism and the filling mechanism to move horizontally and linearly on the main frame as a whole through the linear module.

[0008] Preferably, the filling mechanism includes an upper fixed hopper and a lower movable hopper. The upper fixed hopper is fixedly connected to the mounting plate, and a driving device for driving the lower movable hopper to reciprocate up and down is provided on the mounting plate. The lower movable hopper is fixed to the output end of the driving device.

[0009] Preferably, a dust-proof cloth is provided between the upper fixed hopper and the lower movable hopper.

[0010] Preferably, the open zipper bag mechanism includes a bag clamping device and a driving device for driving the bag clamping device to move up and down.

[0011] Preferably, it further includes a clamping mechanism for clamping the bag mouth on the hopper during filling. The clamping mechanism includes two sealing plates and a driving mechanism for driving the two sealing plates to clamp or separate. Grooves matching the shape of the hopper are provided on the two sealing plates. During filling, the driving mechanism drives the two sealing plates to move towards each other and clamps the bag mouth of the packaging bag on the hopper.

[0012] Preferably, the sealing plate is provided with flexible strips at least on the inner wall of the groove.

[0013] Preferably, the flexible strip is made of rubber material, and a clamping groove is provided on the inner wall of the sealing plate, and the flexible strip is clamped in the clamping groove.

[0014] Preferably, the driving mechanism includes a first fixing rod for fixing one of the sealing plates, a second fixing rod for fixing the other sealing plate, and two air cylinders for driving the two fixing rods. Two straight rods are connected to the first fixing rod, and the two straight rods respectively penetrate through the second fixing rod and the main frame and a cross bar is connected between the ends of the two straight rods. The output end of one air cylinder is connected to the cross bar, and the output end of the other air cylinder penetrates through the main frame and is connected to the second fixing rod. The two air cylinders are fixed back to back and installed on the main frame, and the two sealing plates are controlled to clamp or separate by the synchronous operation of the two air cylinders.

[0015] The beneficial effect of the present invention is that: by providing a sealing plate on the filling mechanism, when the filling mechanism switches to the open zipper bag mechanism, the sealing plate will cover the feeding port of the filling equipment, effectively preventing the powder remaining on the wall of the hopper of the filling equipment from falling on the machine, thereby ensuring that the powder here will not pollute the environment and the machine and prolonging the service life of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a schematic structural diagram of the main machine of the present invention in the state of filling materials;

[0018] Figure 3 is a schematic structural diagram of the main machine of the present invention in the state of not filling materials (open zipper bag state);

[0019] Figure 4 is a schematic structural diagram of another perspective of the main machine of the present invention;

[0020] Figure 5 is a schematic structural diagram of the clamping mechanism of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment

[0023] Please refer to Figures 1-5 , as shown in the figure, a single-station bag-feeding machine with an open zipper bag suitable for powder materials is shown. The machine is in a good sealing environment throughout the process from the discharge to the inside of the bag, thereby reducing the occurrence of powder spillage, ensuring the working environment and the operation of the machine. The machine mainly includes a machine shell 1, a main frame 2, an open zipper bag mechanism 3, a filling mechanism 4, and a bag-loading mechanism. The bag-loading mechanism is a prior art and will not be elaborated in detail here. The open zipper bag mechanism 3 and the filling mechanism 4 are both movably installed on the main frame 2. It should be noted that a sealing plate 42 is provided at the feeding port 41 at the upper end of the filling mechanism 4. The sealing plate 42 extends toward the open zipper bag mechanism 3 side. When the filling mechanism 4 switches to the open zipper bag mechanism 3, the sealing plate 42 closely fits and slides with the discharge port 51 of the filling device 5. The sealing plate keeps closely fitting with the discharge port when not filling to avoid powder leakage. In this embodiment, the sealing plate 42 is an integral structure with the feeding port of the filling mechanism 4, and the surface of the sealing plate is a smooth plane.

[0024] The open zipper bag mechanism 3 and the filling mechanism 4 are fixedly installed on a mounting plate 6. A linear module 7 is provided between the mounting plate 6 and the main frame 2. The linear module is a common standard part on the market and is a prior art, so it will not be elaborated too much here. The open zipper bag mechanism 3 and the filling mechanism 4 are driven by the linear module 7 to move horizontally and linearly on the main frame 2 as a whole.

[0025] The filling mechanism 4 includes an upper fixed hopper 43 and a lower movable hopper 44. The upper fixed hopper 43 is fixedly connected to the mounting plate 6. A driving device 61 for driving the lower movable hopper 44 to reciprocate up and down is provided on the mounting plate 6. The lower movable hopper 44 is fixed to the output end of the driving device 61. In this embodiment, the sealing plate is an integral structure with the upper fixed hopper.

[0026] In order to prevent dust leakage between the lower movable hopper and the upper fixed hopper, a dust-proof cloth 45 is provided between the upper fixed hopper 43 and the lower movable hopper 44 in this embodiment. Both ends of the dust-proof cloth are respectively fixed on the upper fixed hopper and the lower movable hopper. There are various fixing methods, which are conventional technical means and will not be elaborated in detail here.

[0027] The zipper-opening bag mechanism 3 includes a bag-clamping device 31 and a driving device for driving the bag-clamping device 31 to move up and down. The zipper-opening bag mechanism is common in zipper-bag packaging machines, and its structure also belongs to the prior art, so it will not be elaborated in detail here. In this embodiment, this mechanism is only used on this machine to also open the zipper bag. It should be noted in this embodiment that the zipper-opening bag mechanism and the filling mechanism are installed on the mounting plate together, so that they can operate synchronously. Compared with separate driving, this embodiment can make the machine structure simpler.

[0028] It also includes a clamping mechanism 8 for clamping the bag mouth on the hopper during filling. The clamping mechanism 8 includes two sealing plates 81 and a driving mechanism for driving the two sealing plates 81 to clamp or separate. Grooves 811 matching the shape of the hopper are provided on the two sealing plates 81. Both grooves are semi-circular, and together they form a complete circle, so that the sealing plates completely wrap the hopper to avoid powder leakage. During filling, the driving mechanism drives the two sealing plates 81 to move towards each other and clamp the bag mouth of the packaging bag on the hopper. In this embodiment, the lower movable hopper 44 is clamped. In this embodiment, the driving mechanism includes a first fixed rod 82 for fixing one of the sealing plates, a second fixed rod 83 for fixing the other sealing plate, and two air cylinders 84 for driving the two fixed rods. Two straight rods 85 are connected to the first fixed rod 82, and the two straight rods 85 respectively penetrate through the second fixed rod 83 and the main frame 2 and a cross bar 86 is connected between the ends of the two straight rods 85. The output end of one air cylinder is connected to the cross bar 86, and the output end of the other air cylinder penetrates through the main frame 2 and is connected to the second fixed rod 83. The two air cylinders are fixed back to back and installed on the main frame 2. The two air cylinders operate synchronously to control the clamping or separation of the two sealing plates 81.

[0029] In order to minimize the gap between the bag mouth and the hopper, in this embodiment, a flexible strip 812 is provided on at least the inner wall of the groove 811 of the sealing plate 81. In the drawings of this embodiment, a flexible strip is provided on one side wall of the entire sealing plate. The flexible strip 812 is made of rubber material. In this embodiment, in order to fix the flexible strip to the sealing plate, a clamping groove 813 is provided on the inner wall of the sealing plate 81, and the flexible strip 812 is clamped in the clamping groove 813. The flexible strip and the clamping groove can be connected by a tight fit or by using a dovetail groove structure to achieve the clamping of the flexible strip.

[0030] The working principle of this embodiment is as follows: The bag loading mechanism sends the bag to the designated position, sucks the bag on both sides and pulls it open to both sides, and then opens the bag mouth through the zipper bag opening mechanism. After the bag mouth is opened, the zipper bag opening mechanism first rises, and then the zipper bag opening mechanism and the filling mechanism move as a whole to the side of the zipper bag opening mechanism until the hopper of the filling mechanism is aligned with the bag mouth. At this time, the lower movable hopper of the filling mechanism descends and inserts into the bag, and the clamping mechanism is controlled to press the bag mouth against the hopper to start filling. After filling is completed, the lower movable hopper is driven to rise, and at the same time the bag is conveyed to the next process, and a new bag is conveyed over. Then the zipper bag opening mechanism and the filling mechanism move as a whole to the side of the filling mechanism until the zipper bag opening mechanism is aligned with the new bag mouth. At this time, the bag loading mechanism repeats the action of pulling the bag, and the zipper bag opening mechanism also repeats the action of opening the zipper bag, and runs in such a cycle.

Claims

1. A single-station bag feeder for open zipper bags suitable for powder materials mainly includes a machine shell, a main frame, an open zipper bag mechanism, and a filling mechanism. The open zipper bag mechanism and the filling mechanism are both movably installed on the main frame, and it is characterized in that: A sealing plate is provided at the feed inlet at the upper end of the filling mechanism. The sealing plate extends towards the side of the zipper-opening bag mechanism. When the filling mechanism switches to the zipper-opening bag mechanism, the sealing plate slides closely against the discharge port of the filling equipment. The zipper-opening bag mechanism and the filling mechanism are fixedly installed on a mounting plate. A linear module is provided between the mounting plate and the main frame. The linear module drives the zipper-opening bag mechanism and the filling mechanism as a whole to move horizontally and linearly on the main frame. The filling mechanism includes an upper fixed hopper and a lower movable hopper. The upper fixed hopper is fixedly connected to the mounting plate. A driving device for driving the lower movable hopper to reciprocate up and down is provided on the mounting plate. The lower movable hopper is fixed to the output end of the driving device. A dust-proof cloth is provided between the upper fixed hopper and the lower movable hopper.

2. The single-station bag feeder for open zipper bags applicable to powder materials according to claim 1, wherein: The sealing plate is an integral structure with the feed inlet of the filling mechanism, and the surface of the sealing plate is a smooth plane.

3. The single-station bag feeder with a zippered bag for powder materials according to claim 1, characterized in that: The zipper-opening bag mechanism includes a bag clamping device and a driving device for driving the bag clamping device to move up and down.

4. The single-station bag feeder for open zipper bags applicable to powder materials according to claim 1, wherein: It also includes a clamping mechanism for clamping the bag mouth on the hopper during filling. The clamping mechanism includes two sealing plates and a driving mechanism for driving the two sealing plates to clamp or separate. Grooves matching the shape of the hopper are provided on the two sealing plates. During filling, the driving mechanism drives the two sealing plates to move towards each other and clamps the bag mouth of the packaging bag on the hopper.

5. The single-station bag-feeding machine for open zipper bags applicable to powder materials as described in claim 4, wherein: At least a flexible strip is provided on the inner wall of the groove of the sealing plate.

6. The single-station bag-feeding machine for open zipper bags applicable to powder materials as described in claim 5, wherein: The flexible strip is made of rubber material, and a clamping groove is provided on the inner wall of the sealing plate. The flexible strip is clamped in the clamping groove.

7. The single-station bag-feeding machine for open zipper bags applicable to powder materials according to claim 6, wherein: The driving mechanism includes a first fixed rod for fixing one of the sealing plates, a second fixed rod for fixing the other sealing plate, and two air cylinders for driving the two fixed rods. Two straight rods are connected to the first fixed rod, and the two straight rods respectively penetrate through the second fixed rod and the main frame and a cross bar is connected between the ends of the two straight rods. The output end of one air cylinder is connected to the cross bar, and the output end of the other air cylinder penetrates through the main frame and is connected to the second fixed rod. The two air cylinders are fixed back to back and installed on the main frame. The two air cylinders operate synchronously to control the two sealing plates to clamp or separate.

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