Novel flaky caustic soda bagging and bagging device

Abstract

A novel flaky caustic soda bagging and bagging device comprises a transition hopper, a bag clamping and bagging machine is arranged below the transition hopper, a gap is formed between the transition hopper and the bag clamping and bagging machine, a bagging mechanism is arranged on the rear side of the bag clamping and bagging machine, the transition hopper comprises a hopper body, and an annular blowing pipe is arranged on the periphery of the lower portion of the hopper body. The bag clamping and bagging machine comprises a bag clamping material barrel with the oval lower end, a weighing sensor is arranged at the upper end of the bag clamping material barrel, two bag clamping arms are arranged on the outer side of the lower end of the bag clamping material barrel, a bag clamping air cylinder is arranged between the bag clamping arms, and a bag clamping soft plate is arranged in the middle of the lower end of each bag clamping arm. Bag clamping plates are arranged on the left side and the right side of the lower end of the bag clamping arm, the bagging mechanism comprises a bagging swing arm, a fixed bag opening rod is arranged at the front end of the bagging swing arm, a front bag opening rod is arranged in front of the fixed bag opening rod, a rear bag opening rod is arranged behind the fixed bag opening rod, and the bagging swing arm and the bag opening rod can tightly support a bag opening to form a hexagon. According to the invention, the weighing precision and stability can be improved.

Description

Technical Field

[0001] The invention discloses a novel flake caustic soda bagging and bagging device, belonging to the field of packaging machinery. Background Art

[0002] Patent document CN113184241A discloses a fully automatic packaging machine for flaky caustic soda, in which the bag clamping bagging machine is a conventional duckbill movable flap structure. Therefore, hard lumps will be formed between the flap and the wall of the blanking barrel due to dust absorbing moisture and hanging on the wall, resulting in the flap not closing tightly after long-term operation, causing equipment failure and reducing the working efficiency of the packaging machine; since the dust-containing gas flows through the gap between the bag clamping bagging machine and the transition hopper, it is also easy to cause dust to be adsorbed in this gap. After long-term operation, the dust absorbs moisture and lumps, causing the bag clamping bagging machine to contact the transition hopper, thereby affecting the weighing accuracy and increasing the weight error of the packaged product. Summary of the invention

[0003] In order to solve the problems of flap jamming and poor weighing accuracy in the existing automatic packaging machine for caustic soda flakes, the present invention proposes a novel bagging and bagging device for caustic soda flakes, which comprises a transition hopper 1, a bag clamping bagging machine 2 is arranged below the transition hopper 1, there is no contact between the transition hopper 1 and the bag clamping bagging machine 2 and a gap is arranged, the lower end of the transition hopper 1 is located inside the upper end of the bag clamping bagging machine 2, a bagging mechanism 3 is arranged on the rear side of the bag clamping bagging machine 2, the transition hopper 1 comprises a hopper body 11, a blowing ring pipe 12 is provided on the outer periphery of the lower part of the hopper body 11, and the blowing ring pipe 12 can blow dry air into the gap between the transition hopper 1 and the bag clamping bagging machine 2. The upper end of the hopper body 11 is connected to the dust removal system. The bag clamping bagging machine 2 includes a bag clamping barrel 21 with an elliptical discharge port at the lower end. A weighing sensor 27 is provided on one side of the upper end of the bag clamping barrel 21. The weighing sensor 27 is connected to the external frame. The outer side of the elliptical discharge port at the lower end of the bag clamping barrel 21 is provided with two front and rear A bag clamping arm 22 is provided, a bag clamping cylinder 23 is provided between the two bag clamping arms 22, the upper end of the bag clamping arm 22 is hinged to the upper end of the bag clamping barrel 21, and a limit block 26 is also provided at the upper end of the bag clamping arm 22. An arc-shaped bag clamping soft plate 24 is provided in the middle of the lower end of the bag clamping arm 22, and bag clamping plates 25 are provided on the left and right sides of the lower end of the bag clamping arm 22. The bagging mechanism 3 includes two symmetrically arranged bagging swing arms 31 on the left and right, and a fixed bag supporting rod 32 is provided at the front end of the bagging swing arm 31. The fixed bag supporting rod 32 A front bag-supporting rod 33 is provided in front of the bag-supporting rod 33, and a rear bag-supporting rod 34 is provided behind the fixed bag-supporting rod 32. The rear ends of the front bag-supporting rod 33 and the rear bag-supporting rod 34 are hinged to the bag-covering swing arm 31. The front bag-supporting rod 33 and the rear bag-supporting rod 34 are driven by the bag-supporting cylinder 35 through a connecting rod to realize synchronous opening and closing. The bag-supporting cylinder 35 is hinged to the bag-covering swing arm 31. The left and right bag-covering swing arms 31 and the bag-supporting rods can tighten the bag opening into a hexagon whose cross-sectional size is larger than the cross-sectional size of the elliptical discharge port at the lower end of the bag clamping barrel 21.

[0004] The working principle of the present invention is: A. The bagging mechanism 3 inserts the bag-supporting rod on the bag-supporting swing arm 31 into the opened bag opening A, and then tightens the bag opening A into a hexagon. The bagging mechanism 3 swings upward to cover the hexagonal bag opening A on the elliptical discharge port. Then the front bag-supporting rod 33 and the rear bag-supporting rod 34 move toward the fixed bag-supporting rod 32 and retract. At the same time, the bagging swing arm 31 swings outward to tighten the two sides of the bag opening A into a nearly straight shape. B. The bag clamping cylinder 23 drives the two bag clamping arms 22 to close, and the front and rear bag clamping plates 25 clamp the two sides of the bag opening. The arc-shaped bag clamping soft plate 24 presses the middle of the bag opening A against the outer wall of the elliptical discharge port, so that the bag opening A is tightly pressed against the discharge port of the bag clamping barrel 21, and the bagging mechanism 3 continues to swing upward to separate the bag support rod from the bag opening; C. The feeding mechanism above the transition hopper 1 starts to feed the materials downwards for bagging. At the same time, the air blowing ring 12 blows out dry air into the gap between the transition hopper 1 and the bag clamping bagging machine 2. Under the negative pressure of the dust removal system at the upper end of the transition hopper 1, the dry air carries the dust and overflows upwards into the dust removal system. The weighing sensor 27 outputs the weight signal of the bagged material to the external control system.

[0005] The beneficial effects of the present invention are: A. By adopting an elliptical discharge port and a bagging mechanism 3 that can tighten the bag opening into a hexagonal shape, the problem of rotation blocking existing in the duckbill flap is avoided, and while improving the reliability of the packaging machine, the structure of the bag clamping and bagging machine 2 is simplified; B. Dry air is blown into the gap between the transition hopper 1 and the bag clamping bag filling machine 2 through the blowing ring pipe 12, which prevents dust from adhering, absorbing moisture and agglomerating in the gap, so that the bag clamping bag filling machine 2 will not come into contact with the transition hopper 1 even after working for a long time, thereby ensuring the long-term stability of the weighing accuracy and improving the quality of the packaged products and the reliability of the packaging machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a three-dimensional axonometric view of the present invention.

[0007] Figure 2 It is a top view of the present invention.

[0008] Figure 3 It is a structural schematic diagram of the bag clamping and bagging machine 2.

[0009] Figure 4 It is a schematic diagram of the working status of the transition hopper 1 and the bag clamping bagging machine 2 during weighing and bagging.

[0010] Figure 5 It is a structural schematic diagram of the bagging mechanism 3.

[0011] Figure 6 It is a schematic diagram of the working state when the bagging mechanism 3 tightens the bag opening A. Implementation

[0012] The specific implementation of the present invention is shown in Figure 1 to Figure 6 A novel flake caustic soda bagging and bagging device, which includes a transition hopper 1, a bag clamping bagging machine 2 is arranged below the transition hopper 1, there is no contact between the transition hopper 1 and the bag clamping bagging machine 2 and a gap is arranged, the lower end of the transition hopper 1 is located inside the upper end of the bag clamping bagging machine 2, and a bagging mechanism 3 is arranged on the rear side of the bag clamping bagging machine 2, the transition hopper 1 includes a hopper body 11, a blowing ring pipe 12 is arranged on the lower periphery of the hopper body 11, the blowing ring pipe 12 can blow dry air into the gap between the transition hopper 1 and the bag clamping bagging machine 2, the upper end of the hopper body 11 is connected to the dust removal system, the bag clamping bagging machine 2 includes a bag clamping barrel 21 with an elliptical lower end discharge port, a weighing sensor 27 is arranged on one side of the upper end of the bag clamping barrel 21, the weighing sensor 27 is connected to the external frame, and two front and rear bag clamping arms 22 are arranged on the outer side of the elliptical discharge port at the lower end of the bag clamping barrel 21, and a bag clamping mechanism 3 is arranged between the two bag clamping arms 22. The upper end of the bag clamping arm 22 is hinged to the upper end of the bag clamping barrel 21, and a limit block 26 is also provided at the upper end of the bag clamping arm 22. An arc-shaped bag clamping soft plate 24 is provided at the middle of the lower end of the bag clamping arm 22, and bag clamping plates 25 are provided on the left and right sides of the lower end of the bag clamping arm 22. The bagging mechanism 3 includes two symmetrically arranged bagging swing arms 31 on the left and right, and a fixed bag supporting rod 32 is provided at the front end of the bagging swing arm 31. A front bag supporting rod 32 is provided in front of the fixed bag supporting rod 32. 3. A rear bag supporting rod 34 is provided behind the fixed bag supporting rod 32. The rear ends of the front bag supporting rod 33 and the rear bag supporting rod 34 are hinged to the bagging swing arm 31. The front bag supporting rod 33 and the rear bag supporting rod 34 are driven by the bag supporting cylinder 35 through a connecting rod to realize synchronous opening and closing. The bag supporting cylinder 35 is hinged to the bagging swing arm 31. The left and right bagging swing arms 31 and the bag supporting rod can tighten the bag opening into a hexagonal shape with a cross-sectional size larger than the cross-sectional size of the elliptical discharge port at the lower end of the bag clamping barrel 21.

Claims

1. A novel flake caustic soda bagging and bagging device, comprising a transition hopper (1), a bag clamping bagging machine (2) is provided below the transition hopper (1), there is no contact between the transition hopper (1) and the bag clamping bagging machine (2) and a gap is provided, the lower end of the transition hopper (1) is located inside the upper end of the bag clamping bagging machine (2), and a bagging mechanism (3) is provided at the rear side of the bag clamping bagging machine (2), characterized in that: The transition hopper (1) comprises a hopper body (11), the lower periphery of which is provided with a blowing ring pipe (12), the blowing ring pipe (12) being capable of blowing dry air into a gap between the transition hopper (1) and the bag clamping bagging machine (2), the upper end of the hopper body (11) being connected to a dust removal system, the bag clamping bagging machine (2) comprising a bag clamping barrel (21) having an elliptical discharge port at the lower end, the upper end of the bag clamping barrel (21) A weighing sensor (27) is provided on one side, and the weighing sensor (27) is connected to an external frame. Two front and rear bag clamping arms (22) are provided outside the elliptical discharge port at the lower end of the bag clamping barrel (21). A bag clamping cylinder (23) is provided between the two bag clamping arms (22). The upper end of the bag clamping arm (22) is hinged to the upper end of the bag clamping barrel (21). A stop block (26) is also provided at the upper end of the bag clamping arm (22). The lower end of the bag clamping arm (22) is hinged to the upper end of the bag clamping barrel (21). The middle part is provided with an arc-shaped bag clamping soft plate (24), and the lower end of the bag clamping arm (22) is provided with a bag clamping plate (25) on both sides. The bagging mechanism (3) comprises two symmetrically arranged bagging swing arms (31) on the left and right. The front end of the bagging swing arm (31) is provided with a fixed bag supporting rod (32), the front of the fixed bag supporting rod (32) is provided with a front bag supporting rod (33), the rear of the fixed bag supporting rod (32) is provided with a rear bag supporting rod (34), and the front bag supporting rod (33) is provided with a rear bag supporting rod (34). The rear ends of the rod (33) and the rear bag supporting rod (34) are both hinged to the bagging swing arm (31); the front bag supporting rod (33) and the rear bag supporting rod (34) are driven by the bag supporting cylinder (35) through a connecting rod to realize synchronous opening and closing; the bag supporting cylinder (35) is hinged to the bagging swing arm (31); the left and right bagging swing arms (31) and the bag supporting rod can tighten the bag opening into a hexagonal shape with a cross-sectional size larger than the cross-sectional size of the elliptical discharge port at the lower end of the bag clamping barrel (21).

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