Four-column hydraulic press for packaging bag processing

Abstract

The utility model discloses a four-column hydraulic press for packaging bag machining. The four-column hydraulic press comprises a workbench and a packaging bag containing mechanism. Sliding columns are arranged at the four corners of the upper surface of the workbench respectively, the upper ends of the four sliding columns are fixedly connected with a top plate, the outer arc faces of the four sliding columns are slidably connected with an upper mounting plate, a hydraulic cylinder is arranged on the upper surface of the top plate, the telescopic end of the hydraulic cylinder is fixedly connected with the upper end of the upper mounting plate, and an oil inlet of the hydraulic cylinder is externally connected with an external oil pump; the packaging bag placing mechanism comprises a lower laminating mold, a mounting seat and a middle bearing plate, the mounting seat is fixedly connected to the lower side of the interior of the workbench, the middle bearing plate is arranged at the upper end of the mounting seat, and the lower laminating mold is arranged on the upper surface of the workbench. And inaccurate positioning is caused by sliding displacement of the packaging bag.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a four-column hydraulic press for processing packaging bags. Background Art

[0002] Composite packaging bags are made by combining plastic films with different properties with a special adhesive and heat-sealing them to overcome the inherent defects of a single film. Composite packaging bags are widely used. These composite packaging bags are often sealed on three sides, and a four-column hydraulic press is used during the edge sealing process.

[0003] In the prior art, the authorization announcement number CN 212528800 U discloses a four-column hydraulic press, including: a bottom plate, the bottom plate is fixedly connected to the columns, the bottom plate includes a first bottom plate and a second bottom plate, the second bottom plate has a first through hole; the plate has a second through hole; the hydraulic cylinder is fixedly connected to the upper mold fixing plate, the upper mold fixing plate has a third through hole, the first through hole, the second through hole, and the third through hole are coaxially arranged, and the diameter of the third through hole is larger than the diameters of the first through hole and the second through hole; the transmission pipe of the oil tank passes through the first through hole, the third through hole, and the second through hole in sequence and then connects to the hydraulic cylinder, and the transmission pipe is fixedly connected to the second bottom plate and the top plate; a hollow retaining edge. The design of the first through hole, the second through hole, the third through hole and the transmission pipe makes the transmission pipe located in the area surrounded by the four columns, and does not require additional protective treatment, which is highly safe, and the position of the transmission pipe does not increase the space occupied by the hydraulic press, saving space;

[0004] Since the above-mentioned four-column hydraulic press has no positioning mechanism, when the upper and lower molds clamp the packaging bag, the packaging bag will shift due to warping or inertia force, and the inaccurate positioning will cause the edge sealing position to shift. Therefore, we propose a four-column hydraulic press for packaging bag processing. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a four-column hydraulic press for processing packaging bags, which can effectively prevent the packaging bags from deviating and effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a four-column hydraulic press for processing packaging bags, comprising a workbench and a packaging bag placement mechanism;

[0007] Workbench: Slide columns are provided at the four corners of its upper surface. The upper ends of the four slide columns are fixedly connected to a top plate. The outer arc surfaces of the four slide columns are slidably connected to an upper mounting plate. A hydraulic cylinder is provided on the upper surface of the top plate. The telescopic end of the hydraulic cylinder is fixedly connected to the upper end of the upper mounting plate. The oil inlet of the hydraulic cylinder is connected to an external oil pump.

[0008] Packaging bag placement mechanism: It includes a lower fitting mold, a mounting seat and a middle receiving plate. The mounting seat is fixedly connected to the inner lower side of the workbench. The upper end of the mounting seat is provided with a middle receiving plate. The upper surface of the workbench is provided with a lower fitting mold, which effectively prevents the packaging bag from sliding and shifting when the upper and lower molds contact the outer surface of the packaging bag, resulting in inaccurate positioning.

[0009] Furthermore, the packaging bag placement mechanism also includes a telescopic rod, a spring, a connecting plate and a rounded abutment plate. The telescopic rod is symmetrically arranged on the upper surface of the mounting seat. The upper ends of the two telescopic rods are fixedly connected to the connecting plate. The upper ends of the two connecting plates are fixedly connected to the lower end of a rounded abutment plate. The lower surfaces of the two connecting plates are fixedly connected to the lower inner wall of the mounting seat with springs. The springs are movably mounted on the outer arc surfaces of the two telescopic rods. The outer surface of the rounded abutment plate is slidably connected to the inner surface of the lower fitting mold, and the inner surface of the rounded abutment plate is slidably connected to the outer surface of the middle supporting plate, thereby realizing the function of tightly connecting the packaging.

[0010] Furthermore, it also includes a single-chip microcomputer, which is arranged on the upper surface of the workbench, and the input end of the single-chip microcomputer is electrically connected to an external power supply to control the normal operation of the electrical appliance.

[0011] Furthermore, the packaging bag placement mechanism also includes an electric suction cup, which is arranged in the middle of the upper surface of the middle receiving plate. The input end of the electric suction cup is electrically connected to the output end of the single-chip microcomputer to achieve the function of pre-tightening the packaging bag.

[0012] Furthermore, it also includes a mold mounting seat, which is arranged on the lower surface of the upper mounting plate. The upper surface of the mold mounting seat is provided with a heat sealing mold. The input end of the heat sealing mold is electrically connected to the output end of the single-chip microcomputer to realize the function of heat sealing the packaging bag.

[0013] Furthermore, it also includes a bracket, which is arranged on the lower surface of the workbench to support the hydraulic press.

[0014] Furthermore, the packaging bag placement mechanism also includes receiving chamfered grooves, which are respectively opened on the upper side of the inner wall of the lower bonding mold and the upper side of the outer surface of the middle receiving plate. The interior of the two receiving chamfered grooves is plugged into the upper side of the outer surface of the rounded abutment plate, providing space for the upper surface of the rounded abutment plate and the upper surface of the middle receiving plate to be on the same horizontal plane.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the four-column hydraulic press for processing packaging bags has the following advantages:

[0016] First, the electric suction cup generates negative pressure to tightly adsorb the middle part of the packaging bag to be processed on the middle receiving plate. The telescopic end of the hydraulic cylinder extends and drives the heat sealing mold to move downward a specified distance through the top plate and the mold mounting seat, so that the lower surface of the heat sealing mold can be tightly fitted with the lower bonding mold. At this time, since the rounded abutment plate will tightly press against the lower surface of the packaging bag to be processed and slowly insert into the interior of the receiving chamfered groove, the upper surface of the rounded abutment plate can be made to be at the same level as the lower bonding mold and the middle receiving plate. The heat sealing surface of the heat sealing mold and the rounded abutment plate will tightly clamp the packaging bag to be processed and perform heat sealing edge processing on it, which can effectively prevent the packaging bag from sliding and shifting when the upper and lower molds contact the outer surface of the packaging bag, resulting in inaccurate positioning. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 This is an enlarged structural diagram of point A of the present invention.

[0020] In the figure: 1 workbench, 2 packaging bag placement mechanism, 21 lower fitting mold, 22 mounting seat, 23 middle receiving plate, 24 telescopic rod, 25 spring, 26 connecting plate, 27 rounded abutment plate, 28 receiving chamfer groove, 29 electric suction cup, 3 sliding column, 4 top plate, 5 hydraulic cylinder, 6 upper mounting plate, 7 mold mounting seat, 8 single chip microcomputer, 9 bracket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-3 , this embodiment provides a technical solution: a four-column hydraulic press for processing packaging bags, comprising a workbench 1 and a packaging bag placement mechanism 2;

[0023] The workbench 1: its upper surface four corners are respectively provided with slide column 3, four slide columns 3 all are fixedly connected with a top plate 4 on the upper end, four slide columns 3 all are slidably connected with an upper mounting plate 6 on the outer arc surface, the upper surface of the top plate 4 is provided with a hydraulic cylinder 5, the telescopic end of the hydraulic cylinder 5 is fixedly connected with the upper end of the upper mounting plate 6, the oil inlet of the hydraulic cylinder 5 is connected with an external oil pump, further comprising a single-chip microcomputer 8, the single-chip microcomputer 8 is arranged on the upper surface of the workbench 1, the input end of the single-chip microcomputer 8 is electrically connected with an external power supply, further comprising a mold mounting seat 7, the mold mounting seat 7 is arranged on the lower surface of the upper mounting plate 6, the upper surface of the mold mounting seat 7 is provided with a heat sealing mold, the heat sealing mold is an upper mold and a heating pipe structure arranged inside, the input end of the heat sealing mold is electrically connected with the output end of the single-chip microcomputer 8, the input end of the heating pipe of the heat sealing mold is electrically connected with the output end of the single-chip microcomputer 8, further comprising a bracket 9, the bracket 9 is arranged on the lower surface of the workbench 1, when the heat sealing operation of the packaging bag is needed, the single-chip microcomputer 8 can be adjusted and controlled at this time, the heat sealing mold is operated, the temperature of the heat sealing mold itself is increased to the heat sealing temperature, the external oil pump can be adjusted and controlled at this time, the hydraulic cylinder 5 is operated, the telescopic end of the hydraulic cylinder 5 is elongated, and then the heat sealing mold is driven downward by the top plate 4 and the mold mounting seat 7 to move a specified distance;

[0024] The packaging bag placement mechanism 2 includes a lower laminating mold 21, a mounting seat 22 and a middle receiving plate 23. The mounting seat 22 is fixedly connected to the inner lower side of the workbench 1. The upper end of the mounting seat 22 is provided with a middle receiving plate 23. The upper surface of the workbench 1 is provided with a lower laminating mold 21. The packaging bag placement mechanism 2 also includes a telescopic rod 24, a spring 25, a connecting plate 26 and a rounded abutment plate 27. The telescopic rod 24 is symmetrically arranged on the upper surface of the mounting seat 22. The upper ends of the two telescopic rods 24 are fixedly connected to the connecting plate 26. The upper ends of the two connecting plates 26 are both connected to a rounded abutment plate 27. The lower end of the corner abutment plate 27 is fixedly connected, and the lower surfaces of the two connecting plates 26 and the lower inner wall of the mounting seat 22 are fixedly connected with springs 25. The springs 25 are movably sleeved with the outer arc surfaces of the two telescopic rods 24. The outer surface of the rounded corner abutment plate 27 is slidably connected to the inner surface of the lower fitting mold 21, and the inner surface of the rounded corner abutment plate 27 is slidably connected to the outer surface of the middle receiving plate 23. The packaging bag placement mechanism 2 also includes an electric suction cup 29, which is arranged in the middle of the upper surface of the middle receiving plate 23. The input end of the electric suction cup 29 is electrically connected to the input of the single-chip microcomputer 8. At the outlet end, the packaging bag placement mechanism 2 also includes a receiving chamfering groove 28, which is respectively opened on the upper side of the inner wall of the lower fitting mold 21 and the upper side of the outer surface of the middle receiving plate 23. The interior of the two receiving chamfering grooves 28 is plugged into the upper side of the outer surface of the rounded abutting plate 27. The suction cup surface of the electric suction cup 29 is at the same horizontal plane as the middle receiving plate 23. The packaging bag to be processed is placed on the lower fitting mold 21. At this time, the single-chip microcomputer 8 can be controlled to operate the electric suction cup 29. The electric suction cup 29 generates negative pressure to tightly suck the middle of the packaging bag to be processed. Attach it to the middle receiving plate 23 until the lower surface of the heat sealing mold is in contact with the lower bonding mold 21. During this process, the rounded abutment plate 27 will tightly press against the lower surface of the packaging bag to be processed and slowly insert into the receiving chamfered groove 28. When the upper surface of the rounded abutment plate 27 is at the same level as the lower bonding mold 21 and the middle receiving plate 23, the heat sealing surface of the heat sealing mold and the rounded abutment plate 27 will tightly clamp the packaging bag to be processed and perform heat sealing edge processing on it. After the processing is completed, the hydraulic cylinder is reset and the processed packaging bag is manually taken away.

[0025] The working principle of the four-column hydraulic press for packaging bag processing provided by the present invention is as follows: when the packaging bag heat sealing operation is required, the packaging bag to be processed is placed on the lower fitting mold 21, at this time, the single-chip microcomputer 8 can be regulated, the electric suction cup 29 is operated, and the electric suction cup 29 generates negative pressure to tightly adsorb the middle of the packaging bag to be processed on the middle receiving plate 23, at this time, the single-chip microcomputer 8 can be regulated, the heating tube of the heat sealing mold is operated, and the temperature of the heat sealing mold itself is raised to the heat sealing temperature, at this time, the external oil pump can be regulated, the hydraulic cylinder 5 is operated, the telescopic end of the hydraulic cylinder 5 is extended, and then the top The plate 4 and the mold mounting seat 7 drive the heat sealing mold to move downward a specified distance until the lower surface of the heat sealing mold is in contact with the lower bonding mold 21. During this process, the rounded abutment plate 27 will tightly press against the lower surface of the packaging bag to be processed and slowly insert into the receiving chamfered groove 28. When the upper surface of the rounded abutment plate 27 is at the same level as the lower bonding mold 21 and the middle receiving plate 23, the heat sealing surface of the heat sealing mold and the rounded abutment plate 27 will tightly clamp the packaging bag to be processed and perform heat sealing edge processing on it. After the processing is completed, the hydraulic cylinder is reset and the processed packaging bag is manually taken away.

[0026] It is worth noting that the single-chip microcomputer 8 disclosed in the above embodiment is specifically model S7-200, and the electric suction cup 29, hydraulic cylinder 5 and heat sealing mold can be freely configured according to the actual application scenario. It is recommended to use the EVS series electric suction cup for the electric suction cup 29, and the GGK series double-acting single-rod piston high-pressure hydraulic cylinder for the hydraulic cylinder 5. It is recommended to use a conventional type of customized heat sealing mold for the heat sealing mold. The single-chip microcomputer 8 controls the operation of the electric suction cup 29 and the heat sealing mold using methods commonly used in the existing technology.

[0027] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A four-column hydraulic press for processing packaging bags, characterized by: It comprises a workbench (1) and a packaging bag placement mechanism (2); The workbench (1) is provided with slide columns (3) at the four corners of its upper surface, the upper ends of the four slide columns (3) are fixedly connected to a top plate (4), the outer arc surfaces of the four slide columns (3) are slidably connected to an upper mounting plate (6), a hydraulic cylinder (5) is provided on the upper surface of the top plate (4), the telescopic end of the hydraulic cylinder (5) is fixedly connected to the upper end of the upper mounting plate (6), and the oil inlet of the hydraulic cylinder (5) is connected to an external oil pump; The packaging bag placement mechanism (2) comprises a lower laminating mold (21), a mounting seat (22) and a middle receiving plate (23); the mounting seat (22) is fixedly connected to the inner lower side of the workbench (1); the upper end of the mounting seat (22) is provided with the middle receiving plate (23); and the upper surface of the workbench (1) is provided with the lower laminating mold (21).

2. A four-column hydraulic press for processing packaging bags according to claim 1, characterized in that: The packaging bag placement mechanism (2) further comprises a telescopic rod (24), a spring (25), a connecting plate (26) and a rounded abutting plate (27). The telescopic rod (24) is symmetrically arranged on the upper surface of the mounting seat (22). The upper ends of the two telescopic rods (24) are fixedly connected to the connecting plate (26). The upper ends of the two connecting plates (26) are fixedly connected to the lower end of a rounded abutting plate (27). The lower surfaces of the two connecting plates (26) and the lower inner wall of the mounting seat (22) are fixedly connected to the spring (25). The spring (25) is movably sleeved on the outer arc surface of the two telescopic rods (24). The outer surface of the rounded abutting plate (27) is slidably connected to the inner surface of the lower fitting mold (21). The inner surface of the rounded abutting plate (27) is slidably connected to the outer surface of the middle receiving plate (23).

3. The four-column hydraulic press for packaging bag processing according to claim 1, characterized in that: It also includes a single-chip microcomputer (8), which is arranged on the upper surface of the workbench (1), and the input end of the single-chip microcomputer (8) is electrically connected to an external power supply.

4. The four-column hydraulic press for packaging bag processing according to claim 3, characterized in that: The packaging bag placement mechanism (2) further comprises an electric suction cup (29), which is arranged in the middle of the upper surface of the middle receiving plate (23), and the input end of the electric suction cup (29) is electrically connected to the output end of the single chip microcomputer (8).

5. The four-column hydraulic press for processing packaging bags according to claim 3, characterized in that: It also includes a mold mounting seat (7), which is arranged on the lower surface of the upper mounting plate (6), and a heat sealing mold is provided on the upper surface of the mold mounting seat (7), and the input end of the heat sealing mold is electrically connected to the output end of the single chip computer (8).

6. The four-column hydraulic press for packaging bag processing according to claim 1, characterized in that: It also includes a bracket (9), which is arranged on the lower surface of the workbench (1).

7. The four-column hydraulic press for packaging bag processing according to claim 2, characterized in that: The packaging bag placement mechanism (2) further includes receiving chamfered grooves (28), which are respectively opened on the upper side of the inner wall of the lower fitting mold (21) and the upper side of the outer surface of the middle receiving plate (23), and the interior of the two receiving chamfered grooves (28) is plugged into the upper side of the outer surface of the rounded abutting plate (27).

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