PE bag sealing mechanism

Abstract

The utility model relates to the technical field of PE bag sealing, in particular to a PE bag sealing mechanism which comprises a base, one end of the base is fixedly connected with a support, the support is provided with a charging assembly for charging materials into a PE bag, one side of the charging assembly is provided with a sealing assembly for sealing a bag opening, and the charging assembly comprises a protective shell fixedly connected to the support. A stock bin is fixedly connected into the protective shell, a discharging plate is arranged at the bottom of the stock bin, a guide groove is formed in the discharging plate and matched with the bottom of the stock bin, two connecting blocks are fixedly connected to one end of the discharging plate, a U-shaped rotating plate is fixedly connected to the other ends of the connecting blocks, and an inverted-splayed rotating shaft is rotationally connected to one side of the stock bin. A power assembly for driving the discharging plate to be opened and closed is arranged in the protection shell. According to the feeding device, materials can quantitatively and accurately enter the PE bag through the feeding assembly, the materials can accurately enter the PE bag along with the material guide groove by opening the discharging plate, the materials cannot be attached to a bag opening of the PE bag, and then the sealing effect of the bag opening is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PE bag sealing, in particular to a PE bag sealing mechanism. Background Art

[0002] PE bag is a widely used packaging bag, which can be used to store and package products, especially in the chemical, grain, feed, fertilizer and other industries. In order to prevent moisture and oxidation, the packaging of materials needs to be strict and not broken. The traditional packaging method is to manually fold the PE inner bag tightly after the materials are bagged and tie the inner bag mouth with a rubber band or a thin rope, and then sew the outer bag to seal it. When sealing the PE bag, it is easy for materials to remain at the bag mouth due to manual loading, resulting in damage when the bag mouth is sealed, making the seal not tight, and after loading, the PE bag needs to be manually sent to the sealing machine for sealing. The bag mouth is easily deformed by tension, resulting in poor sealing effect of the PE bag and low work efficiency. In view of this, we propose a new type of PE bag sealing mechanism. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a PE bag sealing mechanism to solve the technical problem in the above-mentioned background technology that the PE bag opening is prone to residual materials resulting in loose sealing and poor sealing effect.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: comprising a base, one end of the base is fixedly connected to a bracket, the bracket is provided with a loading component for loading materials into the PE bag, a support component for opening the PE bag is symmetrically arranged below the loading component, and a sealing component for sealing the bag opening is arranged on one side of the loading component;

[0005] The loading assembly comprises a protective shell fixedly connected to a bracket, a silo is fixedly connected inside the protective shell, a discharge plate is provided at the bottom of the silo, a material guide groove is provided inside the discharge plate, the material guide groove is adapted to the bottom of the silo, one end of the discharge plate is fixedly connected to two connection blocks, the other end of the connection block is fixedly connected to a U-shaped rotating plate, one side of the silo is rotatably connected to an inverted eight-shaped rotating shaft, one end of the rotating shaft is arranged in the rotating plate, and a power assembly for driving the discharge plate (24) to open and close is provided in the protective shell.

[0006] Preferably, the power assembly includes a connecting rod slidably connected to one end of the rotating shaft, one end of the rotating shaft is rotatably connected to a roller, the roller slides in a groove of a rotating plate, one end of the connecting rod is fixedly connected to a symmetrically arranged connecting shaft, a support rod rotatably connected to the protective shell is sleeved in the connecting shaft, and one end of the connecting shaft is fixedly connected to a first hydraulic rod fixed in the protective shell.

[0007] Preferably, the other end of the rotating shaft is fixedly connected to a balancing shaft.

[0008] Preferably, the bag mouth expanding assembly includes a first motor fixed inside the protective shell. The output shaft of the first motor is fixedly connected to a first bidirectional screw rod that rotates inside the protective shell. Below the first bidirectional screw rod, there is a first limiting rod fixed inside the protective shell. Two groups of sliding blocks are threadedly connected to the first bidirectional screw rod, and the sliding blocks slide on the first limiting rod. One end of the sliding block is fixedly connected to a rubber block.

[0009] Preferably, a sealing assembly is provided inside the protective shell. The sealing assembly includes a second hydraulic rod fixedly connected inside the protective shell. The movable end of the second hydraulic rod is fixedly connected to a concave connecting plate. One end of the connecting plate is fixedly connected to a second motor. The output shaft of the second motor is fixedly connected to a second bidirectional screw rod that rotates at both ends of the connecting plate. On one side of the second bidirectional screw rod, there are second limiting rods fixed at both ends of the connecting plate. A first hot pressing plate and a second hot pressing plate arranged inside the connecting plate are threadedly connected to the second bidirectional screw rod, and the first hot pressing plate and the second hot pressing plate slide on the second limiting rods.

[0010] Preferably, a conveying assembly is provided on the base. The conveying assembly includes four groups of support columns fixedly connected to the base. Two groups of transmission shafts arranged side by side are rotatably installed on the support columns. Transmission belts are sleeved on the transmission shafts. The end of one of the transmission shafts is fixedly connected to a third motor installed on the support column.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, the bag mouth of the PE bag is expanded by the bag mouth expanding assembly and is located directly below the material loading assembly. Through the material loading assembly, the material can be quantitatively and accurately fed into the PE bag. The material is put into the bin from the feeding port of the bin. When the material in the bin reaches a certain amount, the discharge plate is opened to enable the material to accurately enter the PE bag along the material guiding groove, so that the material will not adhere to the bag mouth of the PE bag, thereby improving the bag mouth sealing effect.

[0013] 2. In the present utility model, the bag mouth expanding assembly can adapt to PE bags of multiple sizes. By adjusting the position of the sliding block, the rubber block is made to fit the surface of the bag mouth of the PE bag. Subsequently, the rubber block continues to adjust its position to expand the PE bag. By expanding the PE bag with the rubber block, it is not necessary to manually grasp the bag mouth of the PE bag when the material loading assembly discharges the material, reducing the damage to the bag mouth of the PE bag and improving the sealing effect.

[0014] 3. In the present utility model, the conveying assembly supports the PE bag after loading and conveys it to the hot pressing plate of the sealing assembly for sealing, reducing the deformation of the bag mouth caused when manually sending the loaded PE bag to the sealing position, improving the sealing effect and working efficiency. The sealing assembly can adjust the sealing position, enabling the bag mouth of the PE bag to be sealed according to the bag mouth condition, improving the sealing efficiency. Brief Description of the Drawings

[0015] The drawings described herein are provided to further understand the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0016] Figure 1 It is a schematic structural diagram of the PE bag sealing mechanism of the present utility model;

[0017] Figure 2 It is a schematic sectional view of the housing of the loading component of the present utility model;

[0018] Figure 3 In the present utility model Figure 2 Enlarged schematic view;

[0019] Figure 4 It is a schematic structural diagram of the mouth-opening component of the present utility model;

[0020] Figure 5 It is a schematic structural diagram of the sealing component of the present utility model;

[0021] Figure 6 It is a schematic structural diagram of the conveying component of the present utility model;

[0022] Figure 7 It is a schematic structural diagram of the material-releasing plate of the present utility model.

[0023] In the figure: 1. Base; 10. Bracket;

[0024] 2. Loading component; 21. Housing; 22. Bin; 23. Rotating shaft; 24. Material-releasing plate; 25. Rotating plate; 26. Power component; 231. Roller; 232. Balance shaft; 241. Connecting block; 242. Material-guiding groove; 261. Connecting rod; 262. Connecting shaft; 263. Support rod; 264. First hydraulic rod;

[0025] 3. Mouth-opening component; 31. First motor; 32. First bidirectional screw; 33. First limiting rod; 34. Sliding block; 35. Rubber block;

[0026] 4. Sealing component; 41. Second hydraulic rod; 42. Connecting plate; 43. Second motor; 44. Second bidirectional screw; 45. Second limiting rod; 46. First hot pressing plate; 47. Second hot pressing plate.

[0027] 5. Conveying component; 51. Support column; 52. Transmission shaft; 53. Transmission belt; 54. Third motor. Detailed Description of the Preferred Embodiments

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] To solve the problem of PE bag mouth easily retaining materials, resulting in loose sealing and poor sealing effect, please refer to Figures 1-7 A PE bag sealing mechanism provided in this embodiment includes a base 1, one end of the base 1 is fixedly connected to a bracket 10, the bracket 10 is used to carry a loading component 2, a conveying component 5 is provided on the base 1, the conveying component 5 is used to convey the loaded PE bag, a loading component 2 for loading materials into the PE bag is provided on the bracket 10, a mouth-opening component 3 for opening the PE bag is symmetrically arranged below the loading component 2, the mouth-opening component 3 is used to open the PE bag mouth to facilitate the entry of materials into the PE bag, a sealing component 4 for sealing the bag mouth is arranged on one side of the loading component 2, the opening of the PE bag is placed on the mouth-opening component 3, the PE bag mouth is opened by the mouth-opening component 3, and then the material passes through the loading component 2 and accurately enters the PE bag opened by the lower mouth-opening component 3, and after the PE bag is loaded, the mouth of the PE bag is sealed by the sealing component 4;

[0030] The loading assembly 2 includes a protective shell 21 fixedly connected to the support 10. The protective shell 21 is used to protect its internal structure. A groove adapted to the material bin 22 is provided at the bottom of the protective shell 21, so that the material in the material bin 22 can enter the PE bag opened by the lower mouth-opening assembly 3 through the groove at the bottom of the protective shell 21. A sealing assembly 4 is provided inside the protective shell 21, and the sealing assembly 4 is used to seal the loaded PE bag. A material bin 22 is fixedly connected inside the protective shell 21. The material bin 22 is used to load materials and guide the materials. A discharge plate 24 is rotatably connected to the bottom of the material bin 22. The discharge plate 24 is used to control the material in the material bin 22 to enter the inside of the PE bag. A material guide groove 242 is provided inside the discharge plate 24. The material guide groove 242 is adapted to the bottom of the material bin 22. The material guide groove 242 accurately guides the material when it is discharged from the material bin 22, so that the material enters the inside of the PE bag. Two connecting blocks 241 are rotatably connected to one end of the discharge plate 24. The other ends of the connecting blocks 241 are fixedly connected with a U-shaped rotating plate 25. One side of the material bin 22 is rotatably connected with an inverted V-shaped rotating shaft 23. One end of the rotating shaft 23 is arranged inside the rotating plate 25. One end of the rotating shaft 23 is rotatably connected with a roller 231. The roller 231 slides in the groove of the rotating plate 25. A power assembly 26 for driving the discharge plate 24 to open and close is provided inside the protective shell 21. The power assembly 26 includes a connecting rod 261 slidably connected to one end of the rotating shaft 23. One end of the connecting rod 261 is fixedly connected with symmetrically arranged connecting shafts 262. A support rod 263 rotatably connected inside the protective shell 21 is sleeved inside the connecting shaft 262. One end of the connecting shaft 262 is fixedly connected with a first hydraulic rod 264 fixed inside the protective shell 21. The first hydraulic rod 264 serves as the power source for opening and closing the discharge plate 24. Before the PE bag is loaded, the bag opening is opened and placed on the mouth-opening assembly 3. The mouth-opening assembly 3 opens the mouth of the PE bag, so that the material can enter the PE bag. Then the material enters the inside of the material bin 22 from the feed port of the material bin 22. When the material reaches a certain amount, the first hydraulic rod 264 is started. Its movable end pushes the connecting shaft 262 to rotate downward. The transmission of the other end of the connecting shaft 262 causes the roller 231 at one end of the rotating shaft 23 to rotate along with the sliding inside the rotating plate 25. Through the rotation of the rotating plate 25, the discharge plate 24 below the material bin 22 can be opened. At this time, the material in the material bin 22 can enter the PE bag opened by the lower mouth-opening assembly 3 along the material guide groove 242 of the discharge plate 24. Thus, it is ensured that when manually loading the PE bag, the material remaining at the bag opening will not affect the sealing effect, and the amount of material entering the PE bag can be quantified by opening and closing the discharge plate 24. When the loaded PE bag is conveyed to the lower part of the sealing assembly 4 by the conveying assembly 5, the sealing assembly 4 seals the opening of the PE bag, thereby simplifying the manual operation process and improving work efficiency.

[0031] Considering that there may be a lack of tightness between the discharge plate 24 and the material bin 22 when it is closed, resulting in leakage of the material before the next discharge, refer to Figures 1-3, therefore, a balance shaft 232 is fixedly connected to the other end of the rotating shaft 23. After the feeding plate 24 is opened, the balance shaft 232 on the rotating shaft 23 is lifted under the influence of the first hydraulic rod 264. When the first hydraulic rod 264 drives the feeding plate 24 to close, the balance shaft 232 is not restricted by the first hydraulic rod 264 and falls downward under the influence of gravity. Then, the rotating plate 25 is driven by the roller 231 to make the feeding plate 24 closely fit under the silo 22, so as to ensure that there is no looseness between the feeding plate 24 and the silo 22 when the feeding plate 24 is closed.

[0032] Considering that when manually opening the PE bag and placing it under the loading assembly 2 until the loading is completed, it may cause damage to the bag mouth of the PE bag during grasping, and manual support is time-consuming and laborious. Refer to Figures 1-2 and Figure 4 , therefore, the mouth-opening assembly 3 includes a first motor 31 fixed inside the protective shell 21. The first motor 31 is used to drive the first bidirectional screw 32 to rotate. The output shaft of the first motor 31 is fixedly connected to the first bidirectional screw 32 that rotates inside the protective shell 21. A first limiting rod 33 fixed inside the protective shell 21 is provided below the first bidirectional screw 32. Two sets of sliding blocks 34 are threadedly connected to the first bidirectional screw 32. The sliding blocks 34 are used to drive the rubber blocks 35 to adjust their positions. The sliding blocks 34 slide on the first limiting rod 33. One end of the sliding block 34 is fixedly connected to a rubber block 35. The bag mouth is opened and placed below the sliding block 34. Then, the first motor 31 is started. Driven by its output shaft, the first bidirectional screw 32 rotates, causing the two sets of sliding blocks 34 above the first bidirectional screw 32 to slide relative to the first bidirectional screw 32 under the restriction of the first limiting rod 33. The position of the rubber block 35 is changed by driving the sliding block 34, so that the rubber block 35 fits inside the PE bag and continues to move, enabling the rubber block 35 to support the bag mouth, thus realizing that the PE bag does not require manual support and reducing the possibility of damage to the PE bag.

[0033] Considering that after traditional loading, the PE bag needs to be manually sent to the sealing machine for sealing, and the bag mouth is prone to serious deformation under the influence of tension, resulting in poor sealing effect of the PE bag. Refer to Figures 1-6, therefore, the conveying assembly 5 includes four sets of support columns 51 fixedly connected to the base 1. The support columns 51 are used to carry the transmission shaft 52 and the third motor 54. Two sets of transmission shafts 52 arranged side by side are rotatably installed on the support columns 51. The transmission shafts 52 are used to drive the conveyor belt 53. The conveyor belt 53 is sleeved on the transmission shafts 52. The conveyor belt 53 is used to convey the PE bags placed on its surface. One end of one set of transmission shafts 52 is fixedly connected to the third motor 54 installed on the support column 51. The third motor 54 is used to drive the transmission shaft 52 to rotate. After the PE bags are filled with materials, the third motor 54 starts. The transmission shaft 52 rotates through the output shaft of the third motor 54. The conveyor belt 53 rotates following the transmission shaft 52 through the transmission of the transmission shaft 52, so as to convey the PE bags on the conveyor belt 53. After they are conveyed to the sealing assembly 4 for sealing, they are then conveyed to the end of the conveyor belt 53 for loading and unloading. Thus, it is realized that the PE bags do not need to be manually carried when passing through the sealing assembly 4 for sealing after being filled with materials, so that the mouths of the PE bags will not be subjected to tensile force and thus serious deformation will not occur, thereby improving the sealing effect and work efficiency.

[0034] Considering that the opening of the PE bag needs to be sealed after loading for subsequent storage, refer to Figures 1-2 and Figure 5 , the sealing assembly 4 includes a second hydraulic rod 41 fixedly connected inside the protective shell 21. The movable end of the second hydraulic rod 41 is fixedly connected to a concave connecting plate 42. The second hydraulic rod 41 is used to adjust the height of the hot pressing plate. One end of the connecting plate 42 is fixedly connected to a second motor 43. The second motor 43 is used to drive the second bidirectional screw 44 to rotate. The output shaft of the second motor 43 is fixedly connected to the second bidirectional screw 44 that rotates at both ends of the connecting plate 42. A second limiting rod 45 fixed at both ends of the connecting plate 42 is provided on one side of the second bidirectional screw 44. A first hot pressing plate 46 and a second hot pressing plate 47 arranged inside the connecting plate 42 are threadedly connected to the second bidirectional screw 44. The first hot pressing plate 46 and the second hot pressing plate 47 slide on the second limiting rod 45. The first hot pressing plate 46 and the second hot pressing plate 47 extrude the PE bag through their own heating to make it deformed and adhered together, realizing the sealing of the PE bag mouth. When sealing the opening of the PE bag, the height of the hot pressing plate can be adjusted according to the specific situation of the opening of the PE bag, so as to change the sealing position of the opening of the PE bag, so that the sealing can be free from factors such as damage and wrinkles at the opening and affect the sealing effect. After determining the sealing height, the second motor 43 starts. Driven by its output shaft, the second bidirectional screw 44 rotates, so that the first hot pressing plate 46 and the second hot pressing plate 47 on the second bidirectional screw 44 are restricted by the second limiting rod 45 and slide relatively on the second bidirectional screw 44. The opening of the PE bag is heated and extruded by the first hot pressing plate 46 and the second hot pressing plate 47 to complete the sealing, so as to facilitate its subsequent storage and transportation.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A PE bag sealing mechanism, comprising a base (1), one end of the base (1) is fixedly connected with a bracket (10), and it is characterized in that: A loading component (2) for loading materials into the interior of a PE bag is provided on the bracket (10). A bag-opening support component (3) for expanding the PE bag is symmetrically arranged below the loading component (2). A sealing component (4) for sealing the bag opening is arranged on one side of the loading component (2). The loading component (2) includes a protective shell (21) fixedly connected to the bracket (10). A material bin (22) is fixedly connected inside the protective shell (21). A discharge plate (24) is provided at the bottom of the material bin (22). A material guide groove (242) is provided inside the discharge plate (24), and the material guide groove (242) is adapted to the bottom of the material bin (22). Two connecting blocks (241) are fixedly connected to one end of the discharge plate (24). The other end of the connecting block (241) is fixedly connected to a U-shaped rotating plate (25). One side of the material bin (22) is rotatably connected to an inverted V-shaped rotating shaft (23), and one end of the rotating shaft (23) is arranged inside the rotating plate (25). A power component (26) for driving the discharge plate (24) to open and close is provided inside the protective shell (21).

2. The PE bag sealing mechanism according to claim 1, characterized in that: The power component (26) includes a connecting rod (261) slidably connected to one end of the rotating shaft (23). A roller (231) is rotatably connected to one end of the rotating shaft (23), and the roller (231) slides in a groove of the rotating plate (25). Symmetrically arranged connecting shafts (262) are fixedly connected to one end of the connecting rod (261). A support rod (263) rotatably connected inside the protective shell (21) is sleeved inside the connecting shaft (262). A first hydraulic rod (264) fixed inside the protective shell (21) is fixedly connected to one end of the connecting shaft (262).

3. A PE bag sealing mechanism according to claim 1, characterized in that: A balance shaft (232) is fixedly connected to the other end of the rotating shaft (23).

4. A PE bag sealing mechanism according to claim 1, characterized in that: The bag-opening support component (3) includes a first motor (31) fixed inside the protective shell (21). A first bidirectional screw rod (32) rotatable inside the protective shell (21) is fixedly connected to the output shaft of the first motor (31). A first limiting rod (33) fixed inside the protective shell (21) is provided below the first bidirectional screw rod (32). Two sets of sliding blocks (34) are threadedly connected to the first bidirectional screw rod (32), and the sliding blocks (34) slide on the first limiting rod (33). A rubber block (35) is fixedly connected to one end of the sliding block (34).

5. A PE bag sealing mechanism according to claim 1, characterized in that: A sealing component (4) is provided inside the protective shell (21). The sealing component (4) includes a second hydraulic rod (41) fixedly connected inside the protective shell (21). A concave connecting plate (42) is fixedly connected to the movable end of the second hydraulic rod (41). A second motor (43) is fixedly connected to one end of the connecting plate (42). A second bidirectional screw rod (44) that rotates at both ends of the connecting plate (42) is fixedly connected to the output shaft of the second motor (43). A second limiting rod (45) fixed to both ends of the connecting plate (42) is provided on one side of the second bidirectional screw rod (44). A first hot pressing plate (46) and a second hot pressing plate (47) provided inside the connecting plate (42) are threadedly connected to the second bidirectional screw rod (44). The first hot pressing plate (46) and the second hot pressing plate (47) slide on the second limiting rod (45).

6. The PE bag sealing mechanism according to claim 1, characterized in that: A conveying component (5) is provided on the base (1). The conveying component (5) includes four groups of support columns (51) fixedly connected to the base (1). Two groups of transmission shafts (52) arranged side by side are rotatably installed on the support columns (51). Transmission belts (53) are sleeved on the transmission shafts (52). One end of one of the transmission shafts (52) is fixedly connected to a third motor (54) installed on the support column (51).

Images