Automatic tying device for solid caustic soda packaging inner bag

Abstract

The utility model belongs to the technical field of tying devices, and discloses an automatic tying device for a solid caustic soda packaging inner bag. The device comprises a mounting base, two hydraulic supporting rods are arranged on the surface of the mounting base, a first mounting plate and a second mounting plate are arranged on the two hydraulic supporting rods respectively, an electric control box and a tying mechanism are arranged on the surface of the first mounting plate, and a closing mechanism is arranged on the surface of the second mounting plate. Through mutual cooperation of the closing mechanism and the tying mechanism, firstly, the closing mechanism conducts closing work on a bag opening of a solid caustic soda packaging inner bag under cooperation of a negative pressure device, a closing opening cover and a rotating motor, the negative pressure device can further exhaust redundant air in the packaging bag during closing, and after closing is completed, the sealing mechanism can conduct sealing work on the bag opening of the packaging bag. And then the aluminum buckles in the buckle bin slide out of the interior of the sliding groove through the tying mechanism under the action of the tying air cylinder, and the aluminum buckles are matched with the guide block in the tying cavity to tighten the bag opening. The quality problems that an inner bag is not fastened and separated by manual tying, so that a solid caustic soda product absorbs moisture and is caked and the like are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tying devices, in particular to an automatic tying device for inner bags of solid alkali packaging. Background Art

[0002] The solid caustic soda packaging production line is to load the flake caustic soda formed by the caustic soda flake machine into the packaging bag after passing through the unloading scale of the packaging machine. The traditional way of tying is to manually tie the bag with a plastic rope, and then tie the inner bag of the solid caustic soda packaging with a plastic tie rope. After the inner bag is tied, it enters the sewing machine to complete the sealing. However, in the actual operation process, the inner bag of the solid caustic soda packaging is not manually pulled tight, the sealing effect is poor, and it is easy to come off, causing the solid caustic soda product to absorb moisture and produce agglomeration, insufficient concentration, corrosion of the packaging bag and other quality problems. In addition, the solid caustic soda leaks after the packaging bag is corroded, which will cause burns to personnel during loading and unloading or transportation. Utility Model Content

[0003] The utility model aims to provide an automatic closing device for inner bags of solid alkali packaging, so as to solve the problems proposed in the above-mentioned background technology that the inner bags of solid alkali packaging are not tightly closed manually, and to prevent the solid alkali product from absorbing moisture and producing lumps, insufficient concentration, corrosion of packaging bags and other quality problems after the closing is detached, and the leakage of solid alkali after the packaging bags are corroded, causing burns to personnel, corrosion of equipment and environmental pollution.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An automatic closing device for inner bags of solid alkali packaging, comprising a mounting base, two hydraulic support rods are arranged on the surface of the mounting base, a first mounting plate and a second mounting plate are arranged on the two hydraulic support rods, an electric control box and a closing mechanism are arranged on the surface of the first mounting plate, and a closing mechanism is arranged on the surface of the second mounting plate;

[0006] The tying mechanism comprises a tying cylinder arranged on the surface of the first mounting plate, a driving end of the tying cylinder is provided with a first piston rod and a workbench, and the first piston rod is arranged through the inside of the workbench, an extrusion block is connected to the end of the first piston rod, and the extrusion block is slidably connected to a slide groove inside the workbench, a tying cavity is arranged at the end of the slide groove away from the first piston rod, a guide block is arranged at the end of the tying cavity opposite to the end of the slide groove, and a buckle bin is also arranged on the slide groove;

[0007] The closing mechanism includes a rotating motor arranged on the surface of the second mounting plate, a cavity is arranged inside the second mounting plate, a driving end of the rotating motor passes through the surface of the second mounting plate and is connected to a driving gear in the cavity inside the second mounting plate, a driven gear is meshed on the outer side of the driving gear, a closing cover is connected inside the driven gear, and a negative pressure device is arranged on the top of the closing cover.

[0008] Further preferably, the height of the hydraulic support rod on which the first mounting plate is installed is lower than that of the hydraulic support rod on which the second mounting plate is installed.

[0009] Further preferably, a connecting ring is provided on the outer side of the two hydraulic support rods, a stepper motor is provided at the end of the two hydraulic support rods, and the driving ends of the stepper motors are respectively connected to the first mounting plate and the second mounting plate, and reinforcing ribs are respectively provided between the connecting ring and the first mounting plate and the second mounting plate.

[0010] Further preferably, the central axis of the piercing mouth portion coincides with the central axis of the collecting mouth portion during operation.

[0011] Further preferably, a guide groove is provided inside the buckle compartment, and a counterweight block is movably connected inside the guide groove.

[0012] Further preferably, a limiting block is provided at a position on the outside of the workbench corresponding to the piercing cavity, one end of the limiting block corresponds to the notch on the outside of the piercing cavity, and the other end of the limiting block is connected to the side of the workbench through a hinge shaft.

[0013] Further preferably, a groove is provided through the surface of the limit block, a pin is movably connected inside the groove, and the outer side of the pin is connected to the end of the second piston rod of the driving end of the limit cylinder.

[0014] Further preferably, the second mounting plate is in an overall U-shaped structure.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] Through the cooperation between the closing mechanism and the tying mechanism, the closing mechanism first closes the mouth of the inner bag of the solid alkali packaging with the cooperation of the negative pressure device, the closing mouth and the rotating motor. When closing, the negative pressure device can also discharge the excess air inside the packaging bag. After the closing is completed, the tying mechanism slides the aluminum clip in the clip bin out of the slide groove under the action of the tying cylinder, and the bag mouth is tightened with the guide block in the tying mouth. It solves the quality problems of solid alkali products absorbing moisture and producing caking, insufficient concentration, and corroding packaging bags when the manual tying inner bag is not tightened and detached. It increases the guarantee of quality control in the production process of enterprises, reduces the economic losses caused by customer complaints, and improves the brand benefits of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the tying mechanism of the utility model;

[0019] Figure 3It is a schematic diagram of the closing mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the second mounting plate of the utility model;

[0021] In the figure: 1. Mounting base; 2. Hydraulic support rod; 3. Connecting ring; 4. Reinforcing rib; 5. Stepping motor; 6. First mounting plate; 7. Second mounting plate; 8. Electric control box; 9. Piercing cylinder; 10. Workbench; 11. Limiting cylinder; 12. Limiting block; 13. Buckle bin; 14. Guide groove; 15. Counterweight; 16. Rotating motor; 17. Driving gear; 18. Driven gear; 19. Receiving mouth; 20. Negative pressure device; 21. First piston rod; 22. Second piston rod; 23. Slide groove; 24. Extrusion block; 25. Piercing mouth; 26. Guide block; 27. Pin shaft; 28. Articulated shaft. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0024] An automatic closing device for inner bags of solid alkali packaging, comprising a mounting base 1, two hydraulic support rods 2 are arranged on the surface of the mounting base 1, a first mounting plate 6 and a second mounting plate 7 are arranged on the two hydraulic support rods 2, an electric control box 8 and a closing mechanism are arranged on the surface of the first mounting plate 6, and a closing mechanism is arranged on the surface of the second mounting plate 7;

[0025] The tying mechanism includes a tying cylinder 9 arranged on the surface of the first mounting plate 6, a first piston rod 21 and a workbench 10 are arranged at the driving end of the tying cylinder 9, and the first piston rod 21 is arranged inside the workbench 10, an extrusion block 24 is connected to the end of the first piston rod 21, and the extrusion block 24 is slidably connected to the slide 23 inside the workbench 10, a tying cavity 25 is arranged at the end of the slide 23 away from the first piston rod 21, and a guide block 26 is arranged at the end of the tying cavity 25 opposite to the end of the slide 23, and a buckle bin 13 is also arranged on the slide 23;

[0026] The closing mechanism includes a rotating motor 16 arranged on the surface of the second mounting plate 7, a cavity is arranged inside the second mounting plate 7, a driving end of the rotating motor 16 passes through the surface of the second mounting plate 7 and is connected to a driving gear 17 in the cavity inside the second mounting plate 7, a driven gear 18 is meshed on the outer side of the driving gear 17, a closing cover 19 is connected inside the driven gear 18, and a negative pressure device 20 is arranged on the top of the closing cover 19.

[0027] In the utility model, the height of the hydraulic support rod 2 installed with the first mounting plate 6 is lower than that of the hydraulic support rod 2 installed with the second mounting plate 7. When in use, the heights of the closing mechanism and the tying mechanism need to change with different states in the closed state and the tied state. A connecting ring 3 is provided on the outer side of the two hydraulic support rods 2, and a stepping motor 5 is provided at the end of the two hydraulic support rods 2, and the driving ends of the stepping motor 5 are respectively connected to the first mounting plate 6 and the second mounting plate 7, and reinforcing ribs 4 are respectively provided between the connecting ring 3 and the first mounting plate 6 and the second mounting plate 7. By coordinating the setting of the reinforcing ribs 4 with the connecting ring 3, the stability of the first mounting plate 6 and the second mounting plate 7 can be enhanced. It is ensured that the closing mechanism and the tying mechanism will not produce large shaking during operation.

[0028] In the utility model, the central axis of the tying cavity 25 coincides with the central axis of the closing cover 19 during operation, so as to ensure that the tying cavity 25 can perform tying work on the bag opening of the inner bag of the packaging bag after the closing cover 19 has been closed.

[0029] In the present invention, a guide groove 14 is provided inside the buckle bin 13, and a counterweight block 15 is movably connected inside the guide groove 14. The counterweight block 15 can continuously press down the aluminum buckle in the buckle bin 13, ensuring that after one aluminum buckle is used, after the extrusion block 24 returns, the other aluminum buckle can automatically fall into the chute 23.

[0030] In the present invention, a limiting block 12 is further provided at the position of the outer side of the workbench 10 corresponding to the piercing cavity 25, one end of the limiting block 12 corresponds to the notch on the outer side of the piercing cavity 25, and the other end of the limiting block 12 is connected to the side of the workbench 10 through a hinge shaft 28. A groove is also provided on the surface of the limiting block 12, and a pin 27 is movably connected inside the groove, and the outer side of the pin 27 is connected to the end of the second piston rod 22 at the driving end of the limiting cylinder 11.

[0031] In the present invention, the second mounting plate 7 is in a U-shaped structure as a whole, so as to ensure that the second mounting plate 7 will not touch the first mounting plate 6 and the tying mechanism on the surface of the first mounting plate 6 when moving up and down.

[0032] Embodiment: Before use, the first mounting plate 6 can be controlled by the stepping motor 5 to rotate to the left and the second mounting plate 7 to the right to a parallel state, or the first mounting plate 6 can be controlled to rotate to the left or right and the second mounting plate 7 can be controlled to rotate to the right or left. Figure 1 The position in the middle remains unchanged, and the two are in a mutually perpendicular state, or the first mounting plate 6 is as Figure 1 The position in the middle remains unchanged, and the second mounting plate 7 is left or right, and the two are in a mutually perpendicular state, as long as they are in a position where they will not collide when moving up and down. At the same time, the second mounting plate 7 is a U-shaped structure as a whole. Even if the two are on the same axis, the second mounting plate 7 will not touch the first mounting plate 6 and the tying mechanism on the surface of the first mounting plate 6 when moving up and down. The closing mechanism on the second mounting plate 7 is moved to the bag opening of the inner bag of the packaging bag by the action of the stepping motor 5 and the hydraulic support rod 2. The bag opening is first collected by the trumpet-shaped closing cover 19 under the negative pressure state of the negative pressure device 20, and the excess air inside the packaging bag is discharged, and then the bag opening is tightened by the rotating motor 16 under the action of the driving gear 17 and the driven gear 18. Then the closing mechanism is slightly moved up to ensure the closing state of the bag opening. Then, the tying mechanism moves to the bag mouth of the inner bag of the packaging bag under the action of the stepping motor 5 and the hydraulic support rod 2. First, the limiting cylinder 11 drives the limiting block 12 to block and limit the tying cavity 25. Under the cooperation of the second piston rod 22 of the limiting cylinder 11, the hinge shaft 28, the groove and the pin shaft 27, the limiting block 12 rotates around the hinge shaft 28. Then, the tying cylinder 9 drives the extrusion block 24 along the slide groove 23 under the action of the first piston rod 21 to push the aluminum buckle in the slide groove 23 outward, and at the same time cooperates with the guide block 26 to tighten the bag mouth in the tying cavity 25. The quality problems such as moisture absorption and agglomeration of solid alkali products, insufficient concentration, and corrosion of packaging bags caused by the manual tying of the inner bag are solved.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic closing device for inner bags of solid alkali packaging, comprising a mounting base (1), characterized in that: The surface of the mounting base (1) is provided with two hydraulic support rods (2), and the two hydraulic support rods (2) are respectively provided with a first mounting plate (6) and a second mounting plate (7), the surface of the first mounting plate (6) is provided with an electric control box (8) and a closing mechanism, and the surface of the second mounting plate (7) is provided with a closing mechanism; The tying mechanism comprises a tying cylinder (9) arranged on the surface of a first mounting plate (6); a driving end of the tying cylinder (9) is provided with a first piston rod (21) and a workbench (10); the first piston rod (21) is arranged through the inside of the workbench (10); an extrusion block (24) is connected to the end of the first piston rod (21); the extrusion block (24) is slidably connected to a slide groove (23) inside the workbench (10); a tying cavity (25) is provided at the end of the slide groove (23) away from the first piston rod (21); a guide block (26) is provided at the end of the tying cavity (25) opposite to the end of the slide groove (23); and a buckle bin (13) is also provided on the slide groove (23); The closing mechanism comprises a rotating motor (16) arranged on the surface of a second mounting plate (7), a cavity is arranged inside the second mounting plate (7), a driving end of the rotating motor (16) penetrates the surface of the second mounting plate (7) and is connected to a driving gear (17) in the cavity inside the second mounting plate (7), a driven gear (18) is meshed on the outer side of the driving gear (17), a closing cover (19) is connected inside the driven gear (18), and a negative pressure device (20) is arranged on the top of the closing cover (19).

2. The automatic closing device for inner bags of solid alkali packaging according to claim 1 is characterized by: The height of the hydraulic support rod (2) on which the first mounting plate (6) is mounted is lower than that of the hydraulic support rod (2) on which the second mounting plate (7) is mounted.

3. The automatic closing device for inner bags of solid alkali packaging according to claim 1 is characterized by: A connecting ring (3) is provided on the outer side of the two hydraulic support rods (2), a stepping motor (5) is provided at the end of the two hydraulic support rods (2), and the driving end of the stepping motor (5) is respectively connected to the first mounting plate (6) and the second mounting plate (7), and reinforcing ribs (4) are respectively provided between the connecting ring (3) and the first mounting plate (6) and the second mounting plate (7).

4. The automatic closing device for inner bags of solid alkali packaging according to claim 1 is characterized by: The central axis of the piercing cavity (25) coincides with the central axis of the receiving cavity (19) during operation.

5. The automatic closing device for inner bags of solid alkali packaging according to claim 1 is characterized by: A guide groove (14) is provided inside the buckle compartment (13), and a counterweight block (15) is movably connected inside the guide groove (14).

6. The automatic closing device for inner bags of solid alkali packaging according to claim 1 is characterized by: A limiting block (12) is also provided at a position on the outside of the workbench (10) corresponding to the piercing cavity (25); one end of the limiting block (12) corresponds to the notch on the outside of the piercing cavity (25); and the other end of the limiting block (12) is connected to the side of the workbench (10) via a hinge shaft (28).

7. The automatic closing device for inner bags of solid alkali packaging according to claim 6 is characterized by: The surface of the limit block (12) is also provided with a groove, and a pin shaft (27) is movably connected inside the groove, and the outer side of the pin shaft (27) is connected to the end of the second piston rod (22) at the driving end of the limit cylinder (11).

8. The automatic closing device for inner bags of solid alkali packaging according to claim 1 is characterized by: The second mounting plate (7) is in an overall U-shaped structure.

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