Packaging machine anti-spill material gate device

Abstract

The utility model discloses a kind of packing machine material door device of preventing spouting, including the material door clamping plate and driving mechanism being located in the left and right sides of discharge port;Two material door clamping plates are respectively provided with material blocking structure outside front and back ends, material blocking structure includes left and right misaligned lamination material blocking blade, two material blocking blades are rotatably installed on bracket, and also connected with driving mechanism, driving mechanism drives material door clamping plate and material blocking blade synchronous swing, two material door clamping plates open, when swing clamping bag piece is supported on fixed clamping bag piece, two material blocking blades open and shield outside two material door clamping plates.This application is structural improvement on the basis of original material door clamping plate structure, under the premise of not changing original material door clamping plate, by additionally providing material blocking structure at the front end and rear end of material door clamping plate, to shield the hollow area of the front end and rear end of material door clamping plate, as far as possible guarantee the closedness of material discharge port, reduce the possibility of material spouting after falling, reduce material splashing, guarantee that packing machine discharging environment is pollution-free.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine hopper technology, and in particular to a packaging machine anti-spray material gate device. Background Technology

[0002] In chemical production, finished products in solid form, such as powders or granules, are often produced. These finished products need to be packaged into bags for transportation and sale. Therefore, powder and granule packaging machines are widely used in chemical production.

[0003] After being weighed by a weighing scale, the material in the hopper enters the packaging machine hopper for packaging. Before the material is discharged, a bag-loading robot grips the packaging bag and places it at the discharge port of the packaging machine hopper. The bag clamp then grips the bag, and the material is discharged in a measured quantity. The structure of the bag clamp in the prior art is described below. Figure 5 This includes material gate clamps located on the left and right sides of the feeding port. The two material gate clamps are driven by a drive mechanism and can swing inward and outward simultaneously. Before clamping the packaging bag, the two material gate clamps need to swing inward to avoid interference, so that the packaging bag can be inserted to the outside of the material gate clamps. The material gate clamps swing outward to clamp the packaging bag, thus completing the bag clamping action. In this process, in order to avoid interference when the two material gate clamps swing inward, the front and rear ends of the material gate clamps will be hollowed out, and a seal cannot be achieved. However, when the packaging bag clamps the material and feeds it, a large amount of dust will be splashed when the material falls into the packaging bag and sprayed out from the hollowed-out positions at the front and rear ends. The material spraying causes environmental pollution and waste of materials. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a packaging machine anti-spray material gate device that effectively prevents material spraying.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a packaging machine anti-spray material gate device, installed at the discharge port at the bottom of the packaging machine hopper, including a bracket fixed to the packaging machine hopper, on which material gate clamping plates and a drive mechanism for driving the two material gate clamping plates to swing inward and outward are rotatably installed on the bracket on the left and right sides of the discharge port, and a swinging bag clamping piece is provided on the outer side of the bottom end of the material gate clamping plate, and a fixed bag clamping piece is provided on the outer side of the swinging bag clamping piece;

[0006] The front and rear ends of the two material gate clamps are respectively provided with a material blocking structure. The material blocking structure includes two staggered material blocking blades. The two material blocking blades are rotatably mounted on the bracket and are also connected to the drive mechanism. The drive mechanism drives the material gate clamps and the material blocking blades to swing synchronously. When the two material gate clamps open and the swinging bag clamping piece abuts against the fixed bag clamping piece, the two material blocking blades open and block the outside of the two material gate clamps.

[0007] As a preferred technical solution, a clamping plate swing arm is fixed to the outer side of the material gate clamping plate, the top end of the clamping plate swing arm is rotatably connected to the bracket through the clamping plate connecting shaft, and the outer middle part of the material gate clamping plate is connected to the driving mechanism.

[0008] As a preferred technical solution, the upper part of the baffle blade is fixed with a blade swing arm, the middle part of the blade swing arm is rotatably connected to the bracket through a blade connecting shaft, and the top end of the blade swing arm is connected to the drive mechanism.

[0009] As a preferred technical solution, the driving mechanism includes telescopic cylinders disposed on the front and rear sides of the discharge port. The ends of the telescopic cylinders are rotatably connected to driving swing arms via driving shafts. The middle part of the driving swing arms is rotatably connected to the bracket. The bottom end of the driving swing arms is rotatably connected to the material gate clamp via a swing arm connecting rod. One end of the material blocking blade is rotatably connected to the driving shaft.

[0010] As a preferred technical solution, the packaging machine hopper is provided with a blade stop outside the material stop blade.

[0011] Due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] I. This application is a structural improvement based on the original material gate clamping plate structure. Without changing the original material gate clamping plate, by adding material blocking structures at the front and rear ends of the material gate clamping plate, the open areas at the front and rear ends of the material gate clamping plate are blocked, so as to ensure the sealing of the material discharge port as much as possible, reduce the possibility of material spraying after falling, reduce material splashing, and ensure that the material discharge environment of the packaging machine is pollution-free.

[0013] Second, if the material blocking structure is installed in a fixed manner, although it can achieve the purpose of blocking the material, it will interfere with the loading and clamping of the packaging bag. Therefore, the material blocking structure of this application adopts two swingable material blocking blades. The two material blocking blades can swing inward and open outward with the material gate clamp, and can achieve the purpose of preventing material spraying without affecting the bag clamping action of the material gate clamp. This application uses the original material gate clamp's drive mechanism to realize the opening and closing of the material blocking blades, so that the material gate clamp and the material blocking blades use the same set of drive mechanisms, which has the advantages of ingenious structural design, simple control, and low cost. Attached Figure Description

[0014] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the present invention.

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0016] Figure 2This is a structural schematic diagram of an embodiment of the present utility model;

[0017] Figure 3 This is a structural schematic diagram of a portion of the structure of an embodiment of this utility model;

[0018] Figure 4 This is a structural exploded view of a portion of the structure of an embodiment of this utility model;

[0019] Figure 5 This is a schematic diagram of the bag clamping device in the background art;

[0020] In the diagram: 1-Material gate clamping plate; 2-Swinging bag clamping plate; 3-Fixed bag clamping plate; 4-Blocking blade; 5-Clamping plate swing arm; 6-Clamping plate connecting shaft; 7-Blade swing arm; 8-Blade connecting shaft; 9-Telescopic cylinder; 10-Drive shaft; 11-Drive swing arm; 12-Swing arm connecting shaft; 13-Swing arm connecting rod; 14-Blade stop block; 15-Packaging machine hopper; 16-Discharge port. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0022] like Figures 1 to 4 As shown, the anti-spray material gate device of the packaging machine is installed at the discharge port 16 at the bottom of the packaging machine hopper 15. It includes a bracket fixed to the packaging machine hopper 15. Material gate clamping plates 1 and a drive mechanism that drives the two material gate clamping plates 1 to swing inwards and outwards are rotatably mounted on the bracket on both sides of the discharge port 16. A swinging bag clamping piece 2 is provided on the outer side of the bottom end of each material gate clamping plate 1, and a fixed bag clamping piece 3 is correspondingly provided on the outer side of each swinging bag clamping piece 2. The fixed bag clamping piece 3 is fixed to the bracket. The swinging bag clamping piece 2 swings back and forth away from or towards the fixed bag clamping piece 3 to realize the loading and clamping of the packaged goods. Material gate clamp 1 is provided with material blocking structures at both the front and rear ends. The material blocking structures include two staggered material blocking blades 4. The two material blocking blades 4 are staggered and partially overlapped. The staggered arrangement is to avoid interference during rotation, and the partial overlap is for better shielding. The two material blocking blades 4 are rotatably mounted on the bracket and are also connected to the drive mechanism. The drive mechanism drives the material gate clamp 1 and the material blocking blades 4 to swing synchronously. When the two material gate clamps 1 open and the swinging bag clamp 2 abuts against the fixed bag clamp 3, the two material blocking blades 4 open and shield the outside of the two material gate clamps 1.

[0023] This application is a structural improvement based on the original material gate clamp 1 structure. Without changing the original material gate clamp 1, by adding material blocking structures at the front and rear ends of the material gate clamp 1, the open areas at the front and rear ends of the material gate clamp 1 are blocked, so as to ensure the sealing of the material discharge port as much as possible, reduce the possibility of material spraying after falling, reduce material splashing, and ensure that the material discharge environment of the packaging machine is pollution-free.

[0024] If the material blocking structure is installed in a fixed manner, although it can achieve the purpose of blocking the material, it will interfere with the loading and clamping of the packaging bag. Therefore, the material blocking structure of this application adopts two swingable material blocking blades 4. The two material blocking blades 4 can swing inward and open outward with the material gate clamp 1. Without affecting the bag clamping action of the material gate clamp 1, it can achieve the purpose of preventing material spraying. This application uses the original material gate clamp 1's drive mechanism to realize the opening and closing of the material blocking blades 4, so that the material gate clamp 1 and the material blocking blades 4 use the same set of drive mechanisms, which has the advantages of ingenious structural design, simple control, and low cost.

[0025] A clamping arm 5 is fixed to the outer side of the material gate clamping plate 1. The top end of the clamping arm 5 is rotatably connected to the bracket via a clamping plate connecting shaft 6. The outer middle part of the material gate clamping plate 1 is connected to the driving mechanism. When the driving mechanism is activated, it will push the material gate clamping plate 1 to swing inward or outward around the clamping plate connecting shaft 6 via the clamping arm 5.

[0026] The upper part of the baffle blade 4 is fixed with a blade swing arm 7. The middle part of the blade swing arm 7 is rotatably connected to the bracket through a blade connecting shaft 8, and the top end of the blade swing arm 7 is connected to the drive mechanism. When the drive mechanism is activated, it pushes the blade swing arm 7 to swing around the blade connecting shaft 8, thereby causing the baffle blade 4 to swing inward or outward. The blade connecting shaft 8 and the clamping plate connecting shaft 6 are at different positions, so the rotation centers of the baffle blade 4 and the material gate clamping plate 1 are different, but the direction and trend of movement of the baffle blade 4 and the material gate clamping plate 1 are the same.

[0027] The driving mechanism includes telescopic cylinders 9 located on both sides of the discharge port 16. The structures on both sides of the telescopic cylinders 9 are symmetrical; here, only one side is described as an example. One end of the telescopic cylinder 9 is rotatably connected to a driving swing arm 11 via a driving shaft 10. The middle part of the driving swing arm 11 is rotatably connected to the bracket via a swing arm connecting shaft 12. The bottom end of the driving swing arm 11 is rotatably connected to the material gate clamp 1 via a swing arm connecting rod 13. One end of the baffle blade 4 is rotatably connected to the driving shaft 10. The axes of the swing arm connecting shaft 12 and the blade connecting shaft 8 can be located on the same straight line.

[0028] The telescopic cylinder 9 can be a hydraulic cylinder or an electric push rod, with both ends connected by hinges.

[0029] The bracket is provided with a blade block 14 outside the material blocking blade 4. The blade block 14 is used to prevent the material from deforming when it impacts the material blocking blade 4.

[0030] The working principle of this embodiment is as follows:

[0031] When the telescopic cylinder 9 extends, the top end of the drive swing arm 11 is driven to swing outward through the drive shaft 10, so that the bottom end of the drive swing arm 11 pushes the material gate clamp 1 inward through the swing arm connecting rod 13, so that the material gate clamp 1 swings inward around the clamp connecting shaft 6 through the clamp arm swing arm 5, completing the retraction of the material gate clamp 1. At the same time, the top end of the blade swing arm 7 is driven to swing outward through the drive shaft 10, so that the bottom end of the material blocking blade 4 retracts inward. At this time, the swing bag clamping piece 2 moves away from the fixed bag clamping piece 3, and a space for the upper bag of the packaging bag is reserved between the two. At the same time, the material blocking blade 4 retracts without affecting the upper bag of the packaging bag.

[0032] When the telescopic cylinder 9 retracts, the top end of the drive swing arm 11 is driven to swing inward via the drive shaft 10, causing the bottom end of the drive swing arm 11 to push the material gate clamp 1 outward via the swing arm connecting rod 13. This causes the material gate clamp 1 to swing outward via the clamp arm 5 around the clamp connecting shaft 6, thus opening the material gate clamp 1. The swinging bag clamp 2 is then pressed against the fixed bag clamp 3 to clamp the upper bag of the packaging bag. At the same time, the top end of the blade swing arm 7 is driven to swing inward via the drive shaft 10, causing the bottom end of the material blocking blade 4 to open outward. This can block the hollow area between the two material gate clamps 1, achieving the purpose of preventing material spraying.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A material gate device for a packaging machine, installed at the discharge port at the bottom of the packaging machine hopper, comprising a bracket fixed to the packaging machine hopper, wherein material gate clamps and a drive mechanism for driving the two material gate clamps to swing inward and outward are rotatably mounted on the bracket on the left and right sides of the discharge port, wherein a swinging bag clamping piece is provided on the outer side of the bottom end of the material gate clamp, and a fixed bag clamping piece is provided on the outer side of the swinging bag clamping piece; characterized in that: The front and rear ends of the two material gate clamps are respectively provided with a material blocking structure. The material blocking structure includes two staggered material blocking blades. The two material blocking blades are rotatably mounted on the bracket and are also connected to the drive mechanism. The drive mechanism drives the material gate clamps and the material blocking blades to swing synchronously. When the two material gate clamps open and the swinging bag clamping piece abuts against the fixed bag clamping piece, the two material blocking blades open and block the outside of the two material gate clamps.

2. The packaging machine anti-spray material gate device as described in claim 1, characterized in that: A clamping arm is fixed to the outer side of the material gate clamping plate. The top end of the clamping arm is rotatably connected to the bracket through a clamping plate connecting shaft. The outer middle part of the material gate clamping plate is connected to the drive mechanism.

3. The packaging machine anti-spray material gate device as described in claim 1, characterized in that: The upper part of the baffle blade is fixed with a blade swing arm, the middle part of the blade swing arm is rotatably connected to the bracket through a blade connecting shaft, and the top end of the blade swing arm is connected to the drive mechanism.

4. The packaging machine anti-spray material gate device as described in claim 1, characterized in that: The driving mechanism includes telescopic cylinders located on the front and rear sides of the discharge port. The ends of the telescopic cylinders are rotatably connected to driving swing arms via driving shafts. The middle part of the driving swing arms is rotatably connected to the bracket. The bottom end of the driving swing arms is rotatably connected to the material gate clamp via a swing arm connecting rod. One end of the material blocking blade is rotatably connected to the driving shaft.

5. The packaging machine anti-spray material gate device as described in claim 1, characterized in that: The packaging machine hopper is provided with a blade stop block located outside the material stop blade.

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